Supermarket Refrigeration Operations and Programming Manual ERC/EC-1000 Environmental Control REFRIGERATION AND AIR CONDITIONING Literature No. RS.8B.J1.22 Code No. 084R9900 Release: Version 5.30/7.30 Date: November 9, 2000 Supersedes: Version 5.2/7.2, 12/1/98
NOTICE Energy Controls International (ECI), formerly an ECI Group company, was been acquired by Danfoss Inc. in September, 2000. In the text of this manual, "Danfoss/ECI" is used to represent the organization supporting this product. 2001 Danfoss Inc. All rights reserved Subject to change without notice Printed in the U.S.A.
Table of Contents Table of Contents... i List of Drawings (within Manual Text)... ix List of Tables... xi INTRODUCTION...1 ERC-1000 Specifications...2 ERC-1000 and EC-1000 Control Capability...3 Rack Control...3 Manual Overview...3 INSTALLATION INSTRUCTIONS MOUNTING AND POWER CONNECTION...4 Unpacking...4 Mounting Guidelines...4 I/O Connections...4 Serial Modules...4 Mounting...4 Connections...4 Relay Boards...4 Mounting...4 Connections...4 System Power Connection...5 Serial Communication Connections...6 PSI Board...6 Relay Boards and Module Serial Connections...6 Serial Communication LED Indicator...7 Serial Relay Boards and Module Power Connections...7 System Operation...7 Communication Connections...9 Modem Installation...9 Making Modem to ERC-1000 Cables...11 RS485 Repeater Board...12 ERC-1000 HARDWARE SYSTEM OVERVIEW...15 Display and Rubber Keypad...15 Power Supply...15 ERC-1000 Power Specifications...15 TF-5 Transformer...15 TF-6 Transformer...16 TF-15 Transformer...16 TF-16 Transformer...16 ERC-1000 Backup Battery...16 CPU Board...16 SERIAL HARDWARE AND HOOKUP...17 Introduction...17 Parallel Serial Interface Board (PSI)...17 i
Serial Modules...17 8 Channel System Capability...17 INPUT/OUTPUT MODULES...18 Serial Relay Board...18 Serial Relay Board Features...18 Installation Considerations...18 Power Connections...19 Communication Connections...19 Relay Board Connection Considerations...19 Indicator Lights...19 Output Control Connections...19 Switches...20 SR8: 7500 Series...21 Serial Analog Output Module/4 Channel (SAO4)...22 Module Description...22 Serial Power Connections...22 Serial Output Communication Connections...22 Serial Digital Input Module/8 Channel (SDI8)...23 Module Description...23 Installation Considerations...23 Serial Power Connections...24 Serial Communication Connections...24 Digital Input Connections...24 High Voltage Interface Board (HVIB)...25 Serial Analog Input Module/8 Channel (SAI8)...26 Module Description...26 Installation Considerations...27 Module Temperature Range:TP-1...27 Module Temperature Range:TP-2...27 Module Pressure Range...27 0-10V Module Input Range...27 Serial Power Connections...27 Serial Communication Connections...28 Sensor/Input Connections...28 0-10V RH Sensor Connection...29 0-10V RH Sensor Power Requirement...29 Installation Requirements...29 Space Mount Sensor...29 Duct Mount Sensor...29 Outside Air Mount Sensor...30 Wiring...30 Serial 16 Channel Universal Input Board (SUI16)...32 Board Description (Dual 8 Channel Mode Operation)...32 Installation Considerations...32 Dual 8 Mode Operation...33 Board Address Setup...33 Board/ Channel Type Setup...34 8 Channel Mode Jumper...34 ii
Channel Jumpers...34 Quick Reference Dual 8 Channel Rev. 5 Input Board Setup...35 Rev. 3 Universal 16 Channel Input Board...36 Serial Communication Wiring...36 ERC-1000 POWER MONITORING...37 Watt Transducers...37 Power System Environments...37 Three-Phase, Four-Wire Systems (House Power Monitoring)...37 Three-Phase, Three-Wire Systems (Rack Power Monitoring)...38 Current Transformers...38 Danfoss/ECI Watt Transducers...38 Watt Transducer Two Element Connections...39 Hookup Considerations...39 Watt Transducer Two Element Connections...40 Hookup Considerations...40 Watt Transducer Two and One Half Element Connections...41 Hookup Considerations...41 PROGRAMMING AND INTERROGATING THE ERC-1000: ERC-1000 SOFTWARE CONTROL OVERVIEW...42 Introduction...42 Menus and Screens...42 Installation Programming Sequence...42 ERC-1000 Data Access and Data Entry...43 ERC-1000 Abbreviations and Mnemonics...44 HVAC Unit Control Features...45 Introduction...45 ERC-1000 HVAC Control Parameters...45 HVAC Scheduling via the ERC-1000...45 HVAC Unit Configuration...45 Plenum Airflow Sensing...46 HVAC Unit Space Temperature Control...46 Space Temperature Control via HVAC Unit Configuration...46 Discharge Sensor Setpoint...46 Lockout Feature...46 HVAC Fan Control via the ERC-1000...47 Unoccupied Schedule...47 ERC-1000 Rack Control Features...48 Introduction...48 Rack Control/ Configuration...48 Rack Control/ Suction & Head Pressure...48 ERC-1000 Logic System Features...50 Introduction...50 ERC-1000 Logic Systems Control...50 ERC-1000 Anti-Sweat Heater Control...51 Introduction...51 Digital Anti-Sweat Heater Control...51 Analog Anti-Sweat Heater Control...51 iii
ERC-1000 Demand Systems Control...52 Introduction...52 ERC-1000 Satellite Systems Control...52 Introduction...52 Satellite Systems Control Modes...52 ERC-1000 Time-of-Day Output Control...53 Time-of-Day Output Configuration...53 Time-of-Day Output Control...53 Analog Light Level Control...53 Digital Light Level Control...53 Variable Ballast Control...54 The ERC-1000 Channel Assignment Capabilities...54 The Window/ Page Approach to User Interface...55 Schedule Programming for the ERC-1000...56 ERC-1000 Menus, Screens, and Related Data Fields...57 ERC-1000 Memory Check...57 ERC-1000 Title Screen...58 ERC-1000 Menu Screen Overview...59 ERC-1000 SOFTWARE CAPABILITIES...60 ERC-1000 Main Menu...60 HVAC Units Menu...60 HVAC Unit Status Screen...61 Introduction...61 HVAC Unit Status Screen Description...61 HVAC Units Setpoints Screen...64 Variable Speed Fan/ Sequence of Operation...69 Seasons-4 SmartCoil/ Sequence of Operation...69 ERC/EC-1000 Basic SmartCoil Control Strategy...69 HVAC Unit Names Screen...70 HVAC Unit Sensor Names Screen...70 HVAC Unit Configuration Screen...71 Rack Menu...74 Rack Control Menu...74 Rack Status Screen...75 Rack Setpoints Screen...77 Variable Speed Setpoints...80 Rack Overview Screen...84 Rack Name Screen...84 Rack Sensor Name Screen...84 Rack Configuration Screen...85 Aux Rack Control Menu...88 Rack Monitoring Points Setpoints Screen...88 Rack Monitor Names Screen...89 Rack Desuperheater Setpoints Screen...89 Aux Outputs Menu...90 Logic Statements...90 Logic Statements Status Screen...91 Logic Statements Setpoints Screen...92 iv
Logic Statements Clear Latch...96 Logic Statements Sensor Names...96 Logic Statements Names...96 Logic Statements Configuration...97 Anti-Sweat Heaters Menu...97 Digital Anti-Sweat Heaters Control...97 Anti-Sweat Heaters Status Screen...97 Anti-Sweat Heaters Setpoints Screen...98 Anti-Sweat Heaters Name Screen...98 Anti-Sweat Heaters Sensor Names Screen...98 Anti-Sweat Heaters Configuration Screen...98 Analog Anti-Sweat Heaters Control...99 Anti-Sweat Heaters Status Screen...99 Anti-Sweat Heaters Setpoints Screen...99 Anti-Sweat Heaters Name and Sensor Name Screens...99 Anti-Sweat Heaters Configuration Screen...99 Demand Systems Menu...100 Demand Systems Status Screen...100 Demand Systems Setpoints Screen...101 Demand Systems Priority Names...102 Demand System Names...102 Demand Sensor Names...102 Demand Systems Configuration...102 Satellite Systems Menu...103 Satellite Systems Status Screen...103 Satellite Systems Setpoints Screen...104 Satellite Systems Names Screen...105 Satellite Systems Sensor Names Screen...105 Satellite Systems Configuration Screen...105 Time-of-Day Outputs Menu...106 Time-of-Day Outputs Status Screen...106 Time-of-Day Outputs Setpoints Screen...107 Time-Of-Day Outputs Names Screen...109 Time-of-Day Sensor Names Screen...109 Time-of-Day Outputs Configuration Screen...110 Log Menu...110 Run Time Menu...110 HVAC Log Menu...110 HVAC Cycles Log Screen...111 HVAC Runtimes Log Screen...112 TOD Log Screen...113 ASH Log Screen...113 Satellite Log Menu...113 Satellite Cycles Log Screen...113 Satellite Runtimes Log Screen...113 Rack Log Screen...114 Note Log...115 Alarm Log Screen...115 Event Log Screen...116 v
Power Log Menu...116 Hourly Power Log Screen...116 Daily Power Log Screen...117 I/O Log Menu...117 I/O Log-Analog & Digital Inputs & Outputs...117 Override Menu...117 TOD Overrides...118 Override Log...118 Digital Output Override Screen...119 Digital Input Override Screen...120 Sensor Input Offset Screen...120 System Menu...121 Date & Time Screen...121 Daylight Savings Screen...121 Alarm Dial Out Menu...121 Alarm Phone Numbers Screen...122 Alarm Setup Menu...123 HVAC Units Alarm Setup...124 Rack Alarm Setup...125 Logic Statements Alarm Setup...126 System Alarm Setup...127 Dial Log...127 Alarm Dial Out/ Miscellaneous...128 I/O List Menu...129 Analog Input List Screen...129 Analog Output List Screen...129 Digital Input List Screen...130 Digital Output List Screen...130 Access Codes Screen...131 System Configuration Menu...131 Miscellaneous Parameters Screen...131 Analog Input Configuration...132 Holidays Screen...132 Master Clear Screen...133 TROUBLESHOOTING...134 Master Clear Procedures...134 ERC-1000 Power...134 Checkpoints...134 Troubleshooting Procedure...134 Serial Communications Problems...134 Temperature Sensors...135 Procedure...135 Pressure Transducers...135 Procedure...135 Serial Relay Board Failure (8 Channel Digital Output)...136 16 Channel Analog Input Module...136 Serial Input Module Failure (8 Channel Analog Input/Digital Input)...136 vi
APPENDIX A ERC-1000 CONVERSION TABLES...137 APPENDIX B WARRANTY, REPLACEMENT PARTS, AND REPAIR PROCEDURE...149 Warranty Information...150 Trademark Information...150 Repair Procedure...152 Advance Shipment...152 APPENDIX C FIELD WIRING REFERENCE GUIDE SERIAL MODULE CONFIGURATION CT SELECTION, CONNECTION AND SCALE FACTOR COMPUTATIONS.153 Serial Module Configuration...155 CT Selection, Connection & Scale Factor Computations...156 APPENDIX D INSTALLATION DIAGRAMS...157 FIGURE 1: Typical Block Diagram Energy Management System FIGURE 2: Typical Serial I/O Connection Diagram FIGURE 3: Modem and PC Direct Store Communications FIGURE 4: Equipment Mounting and Dimensional Specifications FIGURE 5: Equipment Mounting and Power Hookup Diagram FIGURE 6: 12VAC CPU Power Hookup Diagram FIGURE 6A: CPU Power Hookup for TF-5 Transformer FIGURE 7: CPU Identification Diagram for Rev. 10 or Older FIGURE 8: CPU Identification Diagram for Rev. 11 CPU FIGURE 9: Phone Cable Assembly FIGURE 10: Serial Power and Communications Diagram FIGURE 11: Serial Relay Output Control Wiring and Snubber Installation FIGURE 12: Serial Module Interface Diagram FIGURE 13: Analog Interface Diagram FIGURE 14: 12VAC Power Supply with Dew Point Interface Wiring FIGURE 15: Serial Analog Input Pressure Equipment Wiring FIGURE 16: Serial Analog Input 0-10V Power Monitoring FIGURE 17: Light Level Sensor Wiring Diagram FIGURE 18: Serial Analog Input Pressure Equipment Wiring FIGURE 19: Serial Analog Input 0-10V Equipment Wiring FIGURE 20: 4-20mA Sensor Input FIGURE 21: Digital Input Interface Diagram FIGURE 22: Serial Digital Input Relay/ High Voltage Verification FIGURE 23: High Voltage to Dry Contact Interface for Proofing FIGURE 24: Serial Analog Output 0-10V Inverter Wiring FIGURE 25: 16 Channel Analog Input Configuration (Dual 8 Channel Mode) FIGURE 26: 16 Channel Analog Input Configuration (Dual 8 Channel Mode) FIGURE 27: Athena Solid State Controller Specifications FIGURE 28: NoSweat Hookup Diagram ERC/EC-1000 Control Software Version 5.3/7.3 Addendum Index vii
List of Drawings (within Manual Text) Drawing 1:Sample Danfoss/ECI Control System...1 Drawing 2:CPU Board...5 Drawing 3:PSI Board...6 Drawing 4:TF-16 & TF-6 Transformer Wiring...8 Drawing 5:Communication Cable Orientation...11 Drawing 6:Repeater Board...12 Drawing 7:RS485 Repeater Board Configuration Options...13 Drawing 8:Serial Relay Board/ Part# CC/20087400...18 Drawing 9:Serial Relay Board/ 7500 Series (Part# CC/01707500)...21 Drawing 10:Serial Analog Output Module Serial Output Wiring...22 Drawing 11:Serial Digital Input Module...23 Drawing 12:High Voltage Interface Board...25 Drawing 13:Serial Analog Input Module...26 Drawing 14:SAI8 to 0-10V RH Sensor Wiring...31 Drawing 15:SUI16 to RH Sensor Wiring...31 Drawing 16:Sixteen Channel Universal Input Board (Rev 5-8)...32 Drawing 17:Dip Switch Settings For Dual 8 Channel Rev. 5 Board Setup...33 Drawing 18:Jumper Configurations for Dual 8 Channel Rev. 5 Board Setup...34 Drawing 19:Sixteen Channel Rev. 3 Board...36 Drawing 20:kw Watt Transducer (Part #CC/20106400) Two Element Connection...39 Drawing 21:kw Watt Transducer (Part #CC/20106401) Two Element Connection...40 Drawing 22:kw Watt Transducer (Part #CC/20106402/403) 2½ Element Connection...41 Drawing 23:Serial Module Configuration...155 ix
List of Tables Table 1:ERC/EC-1000 Control Functions...3 Table 2:Manual Overview...3 Table 3:Load Chart (Page Power Requirements)...8 Table 4:Modem Command Line Settings for RC-2000 Version 4.40 and Lower and ERC/ EC-1000 Versions 5.20/ 7.20 and Lower...10 Table 5:Modem Command Line Settings for RC-2000 Version 4.41 and Higher and ERC/ EC-1000 Versions 5.21/ 7.21 and Higher...10 Table 6:U.S. Robotics 33.6 or 56K Sportster Modem Dip Switch Settings...10 Table 7:CPU Board Dip Switch ID Settings...16 Table 8:Eight Channel I/O System Setup Capability...17 Table 9:Typical Switch Position Versus Load State...20 Table 10:Digital Input Wiring...24 Table 11:Binary Values for Dip Switches Used in Dual 8 Channel Mode...33 Table 12:Communication Wire Size and Length...36 Table 13:Danfoss/ECI Watt Transducers Model Number Change Notice...38 Table 14:ERC-1000 Screen Mnemonics...44 Table 15:SmartCoil Bypass Damper Positions...69 Table 16:Compressor Unloader Assignment Example...79 Table 17:Danfoss/ECI Watt Transducer Power Rating Via Model Number...81 Table 18:Pressure to Voltage Conversion: SA-100D & SA-100A...138 Table 19:Pressure to Voltage Conversion: SA-500D & SA-500A...139 Table 20:Temperature to Voltage Conversion: TP-1 (C, L, H)...144 Table 21:Dew Point to Voltage Conversion: DPS-1 at DPI Board, DR (+) to DW (-)...147 Table 22:Dew Point to Voltage Conversion: DPS-1 at DPI Board, DP (+) to W (-)...148 Table 23:Replacement Parts List...151 Table 24:Field Wiring Reference Guide...154 Table 25:Serial Module Configuration...155 Table 26:CT, Connection, and Scale Factor Values...156 xi
INTRODUCTION The ERC-1000 and the EC-1000 combine the latest hardware and software available for energy control. They are microprocessor-based systems, combining state-of-the-art hardware and software to provide advanced control strategies and I/O flexibility. The ERC-1000 and the EC-1000 control HVAC (heating, ventilation, and air-conditioning), lighting, anti-sweat heaters, and other miscellaneous loads. Additionally, when networked with Danfoss/ECI Refrigeration Controls, the Danfoss/ECI system controls refrigeration. By combining environmental and refrigeration control, Danfoss/ECI controllers work together as an integrated system, reducing energy and maintenance costs, and safeguarding products and equipment. Drawing 1 below illustrates a typical Danfoss/ECI energy control system. IMPORTANT This manual encompasses both the ERC-1000 and the EC-1000. They mirror each other in functionality EXCEPT for RACK CONTROL. The EC-1000 DOES NOT SUPPORT RACK CONTROL! Office Modem Field Modem Remote PC Modem Adapter Telephone Service 6 Conductor Phone Cable Rack A RC-2000 DCU Communication Belden Wire I/O Communication Alarms Smart Alarm Data Communication Belden Wire Rack B DCU Communication HVAC and TOD Data Communication- 6 Conductor Phone Cable RC-2000 Data Communication- 6 Conductor Phone Cable I/O Communication ERC-1000 I/O Communication Belden Wire Refrigeration Control HVAC Control Drawing 1: Sample Danfoss/ECI Control System 1
ERC-1000 Specifications Power Requirements... 12VAC fused @ 2A DIMENSIONS ERC-1000 Environmental Control...12.50 H x 9.63 W x 2.38 D ERC-1000 Environmental Control (with Dew Point Control and Power Supply)... 27.00 H x 22.00 W x 5.00 D AMBIENT LIMITS Operating Temperature...32 to 100 F Humidity... 0 to 95% RH, noncondensing WIRING Serial Loop Communication Wiring for Serial Modules... 2 wire, 18 awg, unshielded, twisted pair; Belden 1 #8461 or equivalent Maximum Length: 2000 ft. Power Wiring for Serial Modules... 2 wire, 18 awg, unshielded, twisted pair; Belden #8461 or equivalent Max. Length (Module): 100 ft. Max. Length (Relay Board): 50 ft. RC-2000 to RC-1000, ERC-1000, or Modem... 6 conductor flat telephone cable; G-C Thorsen 30-9965 or equivalent Maximum Length: 100 ft. Sensor Wiring: Temperature, Thermistor, kw, Digital Inputs, and Analog Outputs... 2 wire, 18 awg, shielded, twisted pair; Belden #8760 or equivalent Maximum Length: 500 ft. Dew Point, Refrigerant Leak Sensor Wiring... 4 wire, 18 awg, shielded wire, Belden #9418 or equivalent Maximum Length: 500 ft. Relative Humidity Sensor Wiring... 3 wire, 18 awg, shielded wire, Belden #8770 or equivalent Maximum Length: 500 ft. MEMORY BACKUP Battery Backup... 3VDC Lithium 1. Belden is a U.S. registered trademark of Belden Inc. 2
ERC-1000 and EC-1000 Control Capability The Danfoss/ECI ERC-1000 and EC-1000 control an array of environmental functions in a facility. In addition to environmental control functions, an ERC-1000 can also control two rack systems. The control functions of these two systems are listed in Table 1 below. Table 1: ERC/EC-1000 Control Functions ERC-1000 EC-1000 8 HVAC Systems 8 HVAC Systems 2 Rack Systems *EC-1000 does not support rack control 32 Logic Statements 32 Logic Statements 2 ASH Systems 2 ASH Systems 2 Demand Systems 2 Demand Systems 8 Satellite Systems 16 Satellite Systems 16 TOD Systems 16 TOD Systems Rack Control The ONLY FUNCTIONAL DIFFERENCE between the ERC-1000 and the EC-1000 control products is in the area of rack control. The EC-1000 DOES NOT SUPPORT RACK CONTROL, whereas the ERC-1000 DOES SUPPORT RACK CONTROL (see Table 1 for a list of these product control functions). IMPORTANT This manual encompasses the ERC-1000 and the EC-1000 control products; however, the manual text refers to the ERC-1000 only. If you are using an EC-1000, any references to the ERC-1000 apply to it EXCEPT in the AREA of RACK CONTROL. If you are using an EC-1000, DISREGARD any references to RACK CONTROL functions. The EC-1000 DOES NOT SUPPORT RACK CONTROL! Manual Overview Table 2: Manual Overview Table 2 below overviews the information presented in this manual. FOR INFORMATION ABOUT THIS TOPIC: ERC-1000 Capabilities Installation Practices and Procedures Installation Practices and Procedures for the I/O Modules used with your ERC-1000 Setpoint, Sensor and Output Assignments Problem Diagnosis EC/ERC-1000 Conversion Tables Return Procedures/Replacement Part Ordering Field Wiring Guide And Serial Module Configuration Unit and Module Connection Diagrams Introduction TURN TO THIS SECTION: Installation Instructions I/O Connections Programming and Interrogation of the ERC- 1000 Troubleshooting Appendix A Appendix B Appendix C Appendix D 3
INSTALLATION INSTRUCTIONS MOUNTING AND POWER CONNECTION Unpacking 1. Remove the ERC-1000 from its shipping container and inspect for physical damage. 2. Catalog the contents of the shipping container. You should receive: a. ERC-1000 Environmental Control Unit b. I/O modules (as per order) c. This instruction manual d. Relay Boards (as per order) e. Transformer and supply box assembly (as per order) f. Sensors, transducers, etc. (as per order) Note The ERC-1000 can be ordered in two ways: 1. as a complete HVAC/TOD panel or 2. as separate control units. (This REQUIRES field installation of all serial modules.) Mounting Guidelines Follow the instructions below when mounting your unit. 1. Inspect the cabinet where you will house the ERC-1000. Two mounting holes are inside it. You will use these holes to mount the cabinet. SUGGESTION For easy access to the unit (for service and operation), Danfoss/ECI recommends mounting it at eye-level. 2. Secure the cabinet with two ¼-inch mounting screws. I/O Connections Serial Modules Mounting ERC-1000 Serial Modules are generally mounted inside the Environmental/TOD Panel or the HVAC house. The mounting locations easily adapt to the individual application. They should have a local 12VAC power supply. Connections All wiring is connected to the modules via the terminal strip at the top left corner of the module. See the individual module sections in this manual for more information, and Figures 2 and 10 in Appendix D for connection diagrams. The Field Wiring Reference Guide in Appendix C lists wire specifications and lengths for the serial modules. Relay Boards Mounting ERC-1000 Relay Boards are generally mounted inside the Environmental Panel or the HVAC house. They should have a local 12VAC power supply. See Figure 10 in Appendix D. Connections Connect applied control circuits to relay outputs in accordance with the designed specifications. Make connections to the terminal blocks located on the relay board base assembly. Refer to the Field Wiring Reference Guide in Appendix C for wire specifications and lengths. NOTE Each relay provides both normally open (NO) and normally closed (NC) connections along with a common (C-#) that is fused at 3A. NOTE When installing OEM units refer to Figures 4 and 5 in Appendix D for mounting diagrams. 4
System Power Connection Follow the instructions below to power your ERC-1000. 1. The shield plate (mounted with thumbscrews) attaches to the ERC-1000 mounting plate to protect the ERC-1000 CPU Board. The small ERC-1000 enclosure does not have a back plate. Notice the location of the power switch, fuses, and terminal block in the lower right-hand corner (see Figures 7 and 8 in Appendix D, and Drawing 2 below). 2. The ERC-1000 requires one external 12VAC, 30VA (minimum) supply line that is connected to the CPU Board's terminal block (see Figures 5, 6 and 6A in Appendix D, and Drawing 2 below). The 12VAC input is fused on the CPU board. A 12 VAC transformer (TF-5 or TF-6) is available from the factory. The TF-5 or TF-6 can be powered via 115VAC or 230VAC (208V). Either transformer provides one isolated secondary 12VAC output (see Figures 6 and 6A in Appendix D). NOTE It is recommended that the ERC-1000 have its own fused circuit. 3. The ERC-1000 power switch is located on the lower right corner of the CPU board. The switch slides up for the on position. (See Figures 5, 7, and 8 in Appendix D, and Drawing 2 below.) BACKLIT DISPLAY POWER A RED K BLK PIN #32 KEYPAD CONNECTOR 1 REGULAR DISPLAY BATTERY JP4 1 DISPLAY CONNECTORS DISPLAY CONTRAST 1 BACKLIT DISPLAY +5 +5 SERIAL OUT SERIAL IN DATA ADDRESS +12 +5 COMM PORT COMM PORT EPROM RAM OPTIONAL RAM JUMPER OVER TOP 2 POSTIONS FOR REGULAR AND BOTTOM 2 FOR BACKLIT DISPLAY I/O CONNECTOR JUMPER OVER 2 LEFT POSITIONS (PINS #2 AND 3) FOR 1 OR 2 MEG EPROM JP2 OFF ON 1 12VAC SUPPLY U22 CPU 8 UNIT ID SWITCH ISOLATION TRANSFORMER ON OFF 2 AMP FUSE POWER GND REF. (MOUNTING HARDWARE FOR U22) Drawing 2: CPU Board 5
Serial Communication Connections PSI Board The serial communication connections originate at the PSI Board, located directly above the CPU Board. The board receives its functional power from the CPU Board. The PSI Board has four termination connections at the top right hand corner (see Figure 5 in Appendix D and Drawing 3 below). The silk screen is marked Com and In for each pair of connections. NOTE Serial loop wiring IS polarity sensitive. OBSERVE the POLARITY of connection when installing the PSI Board. Failure to observe the polarity of serial loop wiring results in improper operation of your unit. Two pairs of connections for the serial loop allow the option of a return signal, and form a complete circuit loop. NOTE Danfoss/ECI recommends that a return signal be used to insure the function of the loop. Relay Boards and Module Serial Connections The relay board s serial connections are done through the terminal connectors marked SER IN and COMMON on the board s base (see Figures 2 and 10 in Appendix D). There are two pairs of serial connections on the relay board for ease of installation of the loop. The serial modules are terminated very similarly to the procedures listed above. The module serial connections are at the top left corner of the module and are marked SERIAL IN and COMMON. NOTE The wiring needs to be doubled in these connectors due to the design of the module. Precautions should be applied when installing the serial loop wiring to make precise terminations. IMPORTANT Observe the polarity of serial connection when installing the serial loop wiring. Incorrect polarity causes improper serial communication. IMPORTANT Termination of the loop must be at the connectors of all installed serial modules and relay boards. COM IN COM IN NOTE Connections are to serial modules or relay boards. Drawing 3: PSI Board 6
Serial Communication LED Indicator Each module or board has a red LED to designate the status of the serial loop communication. (On the Relay board and modules, it is located below the serial loop connection; on the PSI card it is located at the bottom left corner). A blinking light indicates satisfactory serial communication. Serial Relay Boards and Module Power Connections Serial modules and relay boards require a 12VAC supply for functional power. The modules and relay boards have termination connections for 12VAC inputs. These connections are located directly below the serial connections on the relay boards and next to the serial connections on the modules (see Figure 10 in Appendix D). The connections are marked 12VAC and are not polarity sensitive. A Danfoss/ECI TF-6 transformer is generally used to supply power. NOTE Power connection is not polarity sensitive. See Drawing 4 for TF-6 and TF-16 transformer wiring configuration examples. System Operation A couple of specifications can affect system operation: 1. Type and number of boards in conjunction with transformer type or types supplying 12VAC functional power. (See Table 3, the load chart, for more information.) 2. Total distance and type of cable supplying 12VAC functional power: For the relay board, the maximum distance from the transformer is 50 feet. For the modules, the maximum distance from the transformer is 100 feet. The current ratings are dependent on the type and class of transformer used in the application. Each relay board and module draws a certain amount of current to perform at a satisfactory level. NOTE Via Table 3 on the following page, calculate current draw based on the numbers of boards and modules used in the application. (The individual current draw of each Danfoss/ECI transformer also appears on this list.) The wiring specifications can be found in Appendix C. IMPORTANT Installation should follow the load and wiring specifications to ensure proper function of the system. If they are not followed, operation can be unpredictable. Power is supplied to the modules via two conductor 18 awg, unshielded, twisted pair wire (Belden #8461 or equiv.). See the Field Wiring Reference Guide in Appendix C for distances. See the load chart on the next page (Table 3), to calculate operational load requirements 7
Table 3: Load Chart (Page Power Requirements) TF-5 Transformer, 30VA, maximum current draw 2.5A TF-6 Transformer, 56VA, maximum current draw 4.5A TF-15 Transformer, 25VA, maximum current draw 2.0A TF-16 Transformer, 40VA, maximum current draw 3.3A SYSTEM COMPONENT Each Serial Relay Board Each Serial Input Module Temperature, 0-10V, Digital Each 16 Channel Input Module Each Serial Pressure Module Each Refrigerant Leak Transducer I/O Power MULTIPLIER.50 A.03A.10A.10A.23A Total less than or equal to 2.5A for TF-5 Transformer Total less than or equal to 4.5A for TF-6 Transformer Total less than or equal to 2.0A for TF-15 Transformer Total less than or equal to 3.3A for TF-16 Transformer Note: To determine SYSTEM AMP DRAW, perform the following calculations: 1. Determine the current draw for each of the system components by using the following equation: (# of each component) r (multiplier) = System Current Draw (for that component) 2. Next, add together all of the system component current draw results to determine the total system amp draw. 240/208 VAC Configuration 120 VAC Configuration Wirenut Together 6 WHT 5 BLK 240 VAC 50/60 Hz 2 WHT (208 Acceptable) 1 BLK BLU 7 12 BLU 12 VAC @ 3.3A to Serial Power 120 VAC 50/60 Hz WHT 6 BLK WHT BLK 5 2 1 BLU 7 12 BLU 12 VAC @ 3.3A to Serial Power TF-16 Transformer TF-16 Transformer 240/208 VAC Configuration 120 VAC Configuration Wirenut Together 5 WHT 4 BLK 240 VAC 50/60 Hz 2 WHT (208 Acceptable) 1 BLK BLU 9 7 BLU 12 VAC @ 4.5A to Serial Power 120 VAC 50/60 Hz WHT 5 BLK WHT BLK 4 2 1 BLU 9 7 BLU 12 VAC @ 4.5A to Serial Power TF-6 Transformer TF-6 Transformer Drawing 4: TF-16 & TF-6 Transformer Wiring 8
Communication Connections The ERC-1000 CPU Board employs two RJ-11 phone connectors for modem communication. The connectors are interchangeable. One connector is hooked to a modem and the other connector is used for communicating to other Danfoss/ECI control products (i.e., the RC-2000 or the Smart Alarm). To use these modem communication connectors, you need the following adapters: Modem Adapter Danfoss/ECI Part # CC/01665400 (25-PIN) PC Direct Connect Adapter Danfoss/ECI Part # CC/01686400 (25-PIN) Or Danfoss/ECI Part # CC/01687400 (9-PIN) The RC/Modem Adapter connects a 25-pin/ RS232 port on the back of the modem to a six conductor flat phone cable that plugs directly into the CPU Board (see Figure 3 in Appendix D). The PC Direct Connect Adapter connects the RS232 com port on a computer directly to the com port on the ERC-1000, using a standard six conductor flat phone cable. This adapter can only be used when plugged directly into the ERC-1000 CPU (see Figure 3 in Appendix D). Modem Installation Danfoss/ECI offers a choice of modems for each installation. They are listed as follows: Practical Peripherals PMM14.4MT 11 External U.S. Robotics, 33.6 or 56K Sportster Minor software setup is required before initial use. Follow these steps to set up the modems in the field. 1. Attach the modem to Unit #1 via a sixconductor phone cable to the modem port on the CPU board. 2. Enter [the second level access code] (default is 9876). 3. From the Main Menu, press [SYSTEM], then [ALARM DIAL OUT], then [MISCELLANEOUS]. 4. Add the appropriate string to the modem command line. See Table 4 and Table 5, which follow. 5. Exit out to the Banner screen and allow the unit to save to flash. 6. Turn the modem off and on to reset it. 7. Turn Unit #1 off, wait 15 seconds, and turn it back on. Unit #1 initializes the modem. NOTE Through this process, the modem send and receive lights flash. This process takes about one minute. 8. Repeat steps 2-5 for each unit installed at your facility. 9
Table 4: Modem Command Line Settings for RC-2000 Version 4.40 and Lower and ERC/ EC-1000 Versions 5.20/ 7.20 and Lower BAUD RATE MODEM COMMAND LINE 2400/1200 Practical Peripherals 14.4 E0V0X1&C1&D2&Q6 2400/1200 Hayes Optima 24 (discontinued) E0V0X1&C1&D2&Q6 9600 U.S. Robotics 33.6 or 56K Sportster E0V0X1&M4&A0 2400 U.S. Robotics 33.6 or 56K Sportster E0V0X1&M0&N3&U2 1200 U.S. Robotics 33.6 or 56K Sportster E0V0X1&M0&N2 Note: The 0 in the command string represents zero. Table 5: Modem Command Line Settings for RC-2000 Version 4.41 and Higher and ERC/ EC-1000 Versions 5.21/ 7.21 and Higher BAUD RATE MODEM COMMAND LINE 2400/1200 Practical Peripherals 14.4 &Q6 9600 Practical Peripherals 14.4 &Q5 9600 U.S. Robotics 33.6 or 56K Sportster &M4&N6&U2&A0 2400 U.S. Robotics 33.6 or 56K Sportster &M0&N3&U2&A0 1200 U.S. Robotics 33.6 or 56K Sportster &M0&N2&A0 Note: The 0 in the command string represents zero. Table 6: U.S. Robotics 33.6 or 56K Sportster Modem Dip Switch Settings SWITCH NUMBER SWITCH SETTING READING 1 UP DTR Normal 2 UP Numeric result codes 3 DOWN Display result codes 4 DOWN No echo offline commands 5 UP Auto answer on first ring 6 UP Carrier detect normal 7 DOWN Load factory default 8 DOWN Smart mode 10
Making Modem to ERC-1000 Cables To communicate between the ERC-1000 and a modem, use a standard six-conductor communication cable with a modular RJ-11 jack on both ends. The cable must be assembled with the jacks crimped the same way on both ends. With the tab facing toward you, install the cable with the white conductor on the right for both ends. See Drawing 5 below for details. NOTE Danfoss/ECI-manufactured cables apply the White on Right Rule. They are assembled with the white wire on the right side of the connector. If one end needs to be shortened, make sure the proper connector orientation is maintained. If the ends of the cable being tested can t physically be plugged into the same tester, then two testers are necessary to perform the test. To make custom cable lengths or repair a cable, you need a cable termination tool. This tool (Part # CC/CRIMP-1) and RJ-11 connectors (Part # CC/PCONN) are available from Danfoss/ECI. The drawing below shows the standard cable assembly that Danfoss/ECI uses. You may order a cable tester from Danfoss/ECI (Part # CC/60028400). Six Conductor Communication Cable RJ-11 Jack (Tab Up) Cable Orientation BLUE YELLOW GREEN RED BLACK WHITE RJ-11 Jack (Tab Down) BLUE YELLOW GREEN RED BLACK WHITE Drawing 5: Communication Cable Orientation 11
RS485 Repeater Board The RS485 Repeater Board is used to increase the remote communication ability of your Danfoss/ ECI controller. If your ERC-1000 remote communication needs exceed the distances specified in the Field Wiring Reference Guide (found in Appendix C), use this board to increase your maximum distance. Refer to Drawing 6 and Drawing 7 that follow for more information. 12 VAC Connections 12 VAC 12 VAC P2 6 Conductor Modem Modem Connection RS485 Connections +RS485 -RS485 P1 6 Conductor Smart Alarm 6 Conductor Connection NOTE The 12VAC connections are not polarity sensitive. P2 is silk-screened to the right of the 12VAC connections on your board. The RS485 connections are polarity sensitive. Observe the polarity of connection when installing. P1 is silkscreened to the right of the RS485 connections on your board. Drawing 6: Repeater Board 12
Option #1 RS-485 Loop: AWG 18 Twisted Pair, 3500 ft. Max. 12 VAC RC-2000 Unit ID #1 485 Repeater RS232 Modem RS232 Smart Alarm Laptop Option #2 RS-485 Loop: AWG 18, Twisted Pair, 3500 ft. Max. 485 Repeater 12 VAC ERC-1000 RS232 RC-2000 Unit ID #1 RS232 RS232 RS232 Laptop Modem Smart Alarm ERC-1000 ERC-1000 RS232 Indicates optional connection NOTE: Do not exceed 1000 ft. with the RS232 cable. A laptop computer can be hooked up to the repeater via an adapter (Danfoss/ECI part # CC/01686400 [25 pin] or CC/01687400 [9 pin]). Drawing 7: RS485 Repeater Board Configuration Options 13
Option #3 RS-485 Loop: AWG 18, Twisted Pair, 3500 ft. Max. 485 Repeater 12 VAC 485 Repeater 12 VAC RS232 RS232 RS232 ERC-1000 Unit ID #1 Modem ERC-1000 ERC-1000 ERC-1000 Laptop Option #4 RS-485 Loop: AWG 18, Twisted Pair, 3500 ft. Max. 485 Repeater 12 VAC 485 Repeater 12 VAC RS232 RS232 RS232 ERC-1000 RC-2000 Unit ID #1 Modem Smart Alarm Laptop Indicates optional connection NOTE: Do not exceed 1000 ft. with the RS232 cable. A laptop computer can be hooked up to the repeater via an adapter (Danfoss/ECI part # CC/01686400 [25 pin] or CC/01687400 [9 pin]). (continued) RS485 Repeater Board Configuration Options 14
ERC-1000 HARDWARE SYSTEM OVERVIEW The ERC-1000 hardware system contains a power source, a CPU Base Unit, and up to 32 serial I/O (input/output) modules. The CPU Base Unit is assembled from a sturdy enclosure, housing these components: CPU (Central Processing Unit) Board Four-line, forty-character wide (4 x 40) LCD (liquid crystal display) Keypad Additionally, a PSI (Parallel to Serial Interface) for I/O communication is located behind the display above the CPU Board. The ERC-1000 Controller also includes these installation and maintenance features: Removable keyed latch door Pilot holes for conduit fittings Display and Rubber Keypad The display and rubber keypad are mounted on the ERC-1000 door; they provide a graphic means of firmware communication. The four-line by forty-character backlit liquid crystal display is powered by the CPU Board power supply. Each screen provides clear menu choices that you can respond to via the number and arrow keys on the keypad. For more detail on the menu screens and programming capabilities of the ERC-1000 Controller, refer to the Programming and Interrogating the ERC-1000 section of this manual. Power Supply CAUTION USE a DEDICATED POWER SOURCE to power the ERC-1000 whenever possible. FAILURE TO DO SO may cause EQUIPMENT DAMAGE. The ERC-1000 CPU Board and Serial I/O Modules each require a separate 12VAC power source. IMPORTANT DO NOT USE the same transformer to power both the CPU and the Serial I/O Modules. The CPU and the group of Serial I/O Modules each require a separate 12VAC power source! ERC-1000 Power Specifications AC Input: CPU Board... internally fused @ 2A Danfoss/ECI offers four power sources: 1. Model TF-5 (30VA) transformer 2. Model TF-6 (56VA) transformer 3. Model TF-15 (25VA) transformer 4. Model TF-16 (40VA) transformer The transformers are pre-wired with colorcoded wire terminations and available with or without an enclosure. TF-5 Transformer This model transformer accepts a dual voltage primary and produces an isolated 12VAC 30VA secondary output. The TF-5 can be powered by 120VAC or 240VAC (208V) sources. (See Figures 6 and 6A in Appendix D.) 15
TF-6 Transformer The TF-6 accepts a dual voltage primary and produces one isolated 12VAC 56VA secondary output. The TF-6 can be powered by 120VAC or 240VAC (208V) sources (see Figure 10 in Appendix D). See Table 3, the load chart, for a list of output capabilities. TF-15 Transformer The TF-15 accepts a dual voltage primary and produces one isolated 12VAC 25VA secondary output. The TF-15 can be powered by 120VAC or 240VAC (208V) sources (see Figure 10 in Appendix D). See Table 3, the load chart, for a list of output capabilities. TF-16 Transformer The TF-16 accepts a dual voltage primary and produces one isolated 12VAC 40VA secondary output. The TF-16 can be powered by 120VAC or 240VAC (208V) sources (see Figure 10 in Appendix D). See Table 3, the load chart, for a list of output capabilities. ERC-1000 Backup Battery Each ERC-1000 is supplied with one 3VDC Lithium battery that is UL approved for installation in electronic equipment. The battery is located near the top-middle of the CPU Board. It is mounted in a holding clip. IMPORTANT If the ERC-1000 loses power, the backup battery is sufficient to retain all data (setpoints, etc.) for a minimum of one year. Danfoss/ECI recommends that a qualified technician REPLACE the battery. Consult the factory for battery replacement. CPU Board A list of CPU Board features appears below: V40 Microprocessor with addressing capability of...2 megabyte (MB) RAM...256 kilobytes (KB) ROM...256 kilobytes (KB) In addition, the CPU contains a watchdog timer circuit for processor lockup recovery. The system I/O interface is achieved with an optically coupled, twenty-pin data bus that isolates the processor circuitry from electrical noise present in harsh environments. The ERC-1000 power and communications connections are made on this board. The 8- position dip switch has several purposes, which include addressing the board and setting the communication speed. Table 7 below shows the settings for switches 1 through 5. (See Figures 7 and 8 in Appendix D for more information about CPU Board dip switch settings and positions.) Table 7: CPU Board Dip Switch ID Settings UNIT # Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8 SWITCH POSITION Switch 1, closed Switch 2, closed Switch 3, closed Switch 4, closed Switch 5, closed Switch 1+ 5, closed Switch 2 + 5, closed Switch 3 + 5, closed NOTE Dip switch 6 is used to set the remote baud rate setting: For 1200 baud, switch 6 should be OPEN. For 2400 baud, switch 6 should be CLOSED. Dip switch 7 is also used to set the remote baud rate setting in the ERC-1000 Version 5.10 or higher and in the EC-1000 Version 7.10 or higher. For 9600 baud, switch 7 should be CLOSED. The current version of the CPU does not support dip switch 8. It should remain open. 16
SERIAL HARDWARE AND HOOKUP Introduction Serial describes the data transfer method from I/O devices to the ERC-1000. The ERC-1000 supports serial communication via serial communication I/O modules. Serial communication replaces parallel bus communication formerly supported with the 1000 series controls. NOTE The ERC-1000 supports serial communication through a Parallel to Serial Interface Board (PSI). Parallel Serial Interface Board (PSI) The PSI Board converts the parallel (8 bit lines) information to a serial (bit stream) format. This board can be used with the parallel bus to accommodate serial and parallel input modules. It is installed in the CPU base unit directly above the CPU. The serial communication terminates via connectors at the top right corner of the board. (See Figure 5 in Appendix D.) Serial Modules Danfoss/ECI offers the following types of Input/Output (I/O) modules: 1. Digital Output 8 Channel 2. Analog Output 4 Channel 3. Digital Input 8 Channel 4. Analog Input 8 Channel 5. Universal Input 16 Channel All modules are packaged individually and have their own part number. In combination, they comprise your system. The ERC-1000 can be configured with any combination of serial modules, if no more than eight modules of one family are installed. They can be set up for eight channel I/O addressing. 8 Channel System Capability The ERC-1000 supports a group of eight boards per I/O type. (See Table 8 below.) The system as set up below supports a maximum of: 64 digital inputs, 64 analog inputs, 32 analog outputs, and a maximum of 64 digital outputs. Table 8: Eight Channel I/O System Setup Capability Analog/Output (SAO4) (4 Channel) Digital/Output (SR8) (8 Channel) Analog/Input (SAI8) (8 Channel) Digital/Input (SDI8) (8 Channel) Board Address: 1 2 3 4 5 6 7 8 Board Address: 1 2 3 4 5 6 7 8 Board Address: 1 2 3 4 5 6 7 8 Board Address: 1 2 3 4 5 6 7 8 NOTE: Serial Analog Output Module (SAO4): 4 Outputs, each with a single board address 1-8. Serial Relay Board/Digital Output (SR8): 8 Outputs, each with a single board address 1-8. Serial Analog Input Module (SAI8): 8 Inputs, each with a single board address 1-8. Serial Digital Input Module (SDI8): 8 Inputs, each with a single board address 1-8. 17
INPUT/OUTPUT MODULES Serial Relay Board The Serial Relay Board (SR8) contains all of the terminal strips for digital/output control circuit connections. The relay board snaps into a piece of snap track. Loads are hooked up to the removable terminal strips on the relay board. (See Figures 10, 11, and 12 in Appendix D for detailed connection diagrams). Serial Relay Board Features For a detailed diagram of the SR8, refer to Drawing 8 below. Serial Relay Board features include: Red LEDs for power/communication RS232 connection for serial communication RS485 connection for serial communication (for future use) Eight position ID dip switch (values are numeric) Plastic cover plate to shroud the board s low voltage side and provide a place to apply the relay labels Dimensions of 10 Long x 3.375 Wide x 1.85 High Installation Considerations Relays...fused at 3A, 250VAC/ COM terminal Relay rating...10a/250vac 1/3 hp/240vac Relay Channels Relay Control Labels Switches Dip Switch Power Connection Terminals (12VAC) RS485 Serial Connection Terminals Output Connection Terminals ENRGZ Relay LEDs Override LEDs RS232 Serial Connection Terminals Fastening Screws for Terminal Strips Drawing 8: Serial Relay Board/ Part# CC/20087400 18
Power Connections This board (SR8 Relay Board) requires a 12VAC power supply and draws approximately 0.5A. Power connection IS NOT polarity sensitive and is done through a 12VAC connector at the top right corner of the board. This connection is marked on the silk-screen labeling on the board. Refer to Drawing 8 on the previous page for a diagram of the relay board. NOTE A power LED is located directly below the 12VAC connector. It is lit when 12VAC power is applied to the board. Communication Connections The serial communication IS polarity sensitive and is connected through the RS232 connection at the bottom right corner of the board. The silk-screen label on the board designates the polarity of the connections. The signal should connect at the In, and the common should connect at the common. Once the connection is complete, and the board is assigned one time to the program, the two LEDs below the power LED light to show satisfactory communications. CAUTION Observe the POLARITY of the SERIAL CONNECTIONS when installing. Incorrect polarity of serial connections causes an inaccurate reading or no reading at all. DO NOT USE the RS485 connection located directly above the Serial RS232 connection on the right side of the board. The connection is for future use. Relay Board Connection Considerations Power Connections Board Power Supply... 12VAC Board Power Wiring... Belden #8461 or Equivalent Polarity Sensitive... no Board Power Draw... 0.5A Maximum distance... 50 feet Serial Communication Connections Board Serial Wiring to the ERC-1000:... via two wire, 18 awg,... unshielded, twisted pair... Belden #8461 or... equivalent Polarity Sensitive... yes Max. Distance... 2000 feet Indicator Lights Three LEDs are located on the right center portion of the board: Power On Receive Transmit The top LED, labeled Power On, indicates satisfactory application of the 12VAC when it stays lit. The middle LED, labeled Receive, indicates satisfactory serial communications when it blinks quickly, almost appearing continuously lit. The bottom LED, labeled Transmit, also indicates satisfactory serial communications when it blinks at a steady rate. Output Control Connections Removable terminals exist for common (C), normally open (NO), and normally closed (NC) relay operations. All relays are fused at three amps, 250VAC and 1/3 hp at 240VAC. Refer to Drawing 8 on the previous page for a detailed location of the output terminal connections. 19
Switches Each relay has a three-position control switch and is marked as follows: ENRGZ (Energized) AUTO (Automatic) DNRGZ (De-energized) When the ENRGZ or DNRGZ switch is on, the operational status of the relay bypasses the computer. When the system runs in AUTO, the ERC-1000 runs the system. If you desire manual control of your system, place the control switch in override. If you desire computer control of your system, place the control switch to AUTO. Table 9: Typical Switch Position Versus Load State LOAD TYPE SWITCH POSITION ENRGZ Fan OFF ON DNRGZ NOTE The positions ENRGZ and DNRGZ override the ERC-1000 s control of the relay s state. If the red LED is lit, the ERC-1000 or the ENRGZ override energizes the relay. If the red LED is not lit, the ERC-1000 or DNRGZ switch de-energizes the relay. If the blinking yellow LED is lit, the control switch is moved from the AUTO position to either of the two override positions. In the event of a system failure, the relays fail in the DNRGZ position. SAFEGUARD Label all relays with their correct function this assists any future troubleshooting or maintenance procedures. AC, HR, AH ON OFF Alarm NO ALARM IN ALARM Compressor OFF ON Condenser Fans OFF ON 20
SR8: 7500 Series Refer to the drawing below for an example of the 7500 series SR8. Most of the functionality is similar to the current SR8. Differences are found in the locations of connections. Look at your board to determine its revision level, and compare it to the applicable drawing. Reference the locations of connections in order to service this prior revision. Relay Channels Relay Labels ENRGZ Load LEDs Control Switches Override LEDs Serial Comm. Terminals Dip Switch Power Connectionn Terminals (12VAC) Output Connection Terminals Fastening Screws for Terminal Strip Drawing 9: Serial Relay Board/ 7500 Series (Part# CC/01707500) 21
Serial Analog Output Module/4 Channel (SAO4) Module Description Refer to Drawing 10 below and Figure 24 in Appendix D for a diagram of a Serial Analog Output Module (SAO4). Serial Analog Output Module features include: Black case housing Dimensions of: 3.5 Wide x 5.2 Long x 2 High Two mounting holes Eight position dip switch (values are numeric) Red LED for communication Also, each SAO4 provides four channels for sending 0-10VDC control signals to other control systems (i.e., DC inverters for variable speed compressors or condensers). Serial Power Connections The 12VAC serial power connects in through the 12VAC In connections and out through the 12VAC Out connections at the top left corner of the module. (Serial power connections ARE NOT polarity sensitive.) CAUTION The 12VAC power source cannot exceed 50 feet in distance from the modules. Serial Output Communication Connections The serial communication connects in to Ser In/COM and out through Ser Out/COM on the module, and IS polarity sensitive. This board supports four channels and common connections for the 0-10 volt output for analog control signals. See Figure 24 Serial Analog Output 0-10V Inverter Wiring in Appendix D for a diagram of this connection type. CAUTION Observe the POLARITY of SERIAL COMMUNICATION connection when installing. Incorrect polarity causes an inaccurate reading or no reading at all. 12VAC TO OTHER SERIAL MODULES Mounting Hole TWISTED WIRE PAIRS Communication LED CONTROL INPUT 0-10VDC (TYP) L L N TWISTED WIRE PAIRS Dip Switch ANALOG OUTPUT INVERTER SERIAL COMMUNICATIONS LOOP TO OTHER SERIAL MODULES NOTE: Connect the shielded cable at the inverter end ONLY. L L N FAN OR COMPRESSOR (VARIABLE SPEED) 2 CONDUCTOR TWISTED SHIELDED BELDEN 8760 Drawing 10: Serial Analog Output Module Serial Output Wiring 22
Serial Digital Input Module/8 Channel (SDI8) Module Description Serial Digital Input Module (SDI8) features include: Black case housing Dimensions of 3.5 Wide x 5.2 Long x 2 High Two mounting holes Eight position dip switch (values are numeric) Red communication LED In addition, each SDI8 provides eight channels of digital input (i.e., dry contact closures). These digital inputs include: Air flow switch Phase-loss monitor Proof-of-run verification Any other digital input supported by the ERC-1000 firmware such as: Oil Fail Liquid Level 12VAC Terminals Mounting Hole Dip Switch Communication LED SER DIG IN NOTE If using a 16 channel universal/input board (SUI16) in your serial system, the board address of the SUI16 board eliminates the capability to have an SDI8 board as the same number in the SDI8 system. Drawing 11: Serial Digital Input Module Installation Considerations Module Power Supply... 12VAC... via Belden #8461... or equivalent Current Draw... approx. 0.3A Maximum Distance... 100 ft. Serial Communication Connection to the ERC-1000...via 2 wire, 18 awg,...unshielded twisted pair,...belden #8461...or equivalent Maximum distance...2000 ft. 23
Serial Power Connections The SDI8 12VAC serial power connection (not polarity sensitive) connects in and out through the one 12VAC connection at the top left corner of the board. The In and Out wires twist and connect through one connector on this board. Serial Communication Connections The serial communication (polarity sensitive) connections connect in and out through the Ser In/ COM terminals on the board. NOTE The 12VAC power source cannot exceed 100 feet in distance from the SDI8. Digital Input Connections A channel input and a shared common connection comprise a digital input. These channels accept only dry contact closures. Table 10 below lists typical relay contact wiring settings. Table 10: Digital Input Wiring TYPICAL ALARM AND VERIFICATION RELAY CONTACT WIRING Liquid Level Oil Fail Phase Loss Normally Open Normally Closed Normally Closed CAUTION Observe the POLARITY of SERIAL COMMUNICATION connection when installing. Incorrect polarity causes an inaccurate reading or no reading at all. Run Verify Variable Speed Fault Air Flow Switch Normally Open Normally Open Normally Closed WARNING If voltage is introduced to these channels, it may DAMAGE your module and VOID your WARRANTY! For detailed digital input connection information, refer to the following diagram in Appendix D: Figure 22, Serial Digital Input Relay/High Voltage Verification 24
High Voltage Interface Board (HVIB) The High Voltage Interface Board (HVIB) outputs a dry contact closure to the SDI8. In order to use line voltage proofing, the line voltage must: 1. Either connect to the HVIB or 2. An interposing relay may be used to supply the dry contact closure to the SDI8. This high voltage interface board accepts the following AC voltages: 24VAC 120VAC 240VAC Refer to Drawing 11 for a diagram of an SDI8, and Figure 14 in Appendix D for an example of this connection type. Drawing 12 below, shows the High Voltage Interface Board (HVIB). WARNING Do not connect high voltage to the SDI8. Serious damage can occur to the board or system if you connect high voltage to the SDI8, and your warranty will be voided. High Voltage Inputs (for connection to the load) AC1 AC1 AC2 AC2 AC3 AC3 TB1 L1 L2 L3 J1 J2 TB2 1 2 3 4 C Digital Outputs (Dry Contact/No Voltage: Connect to SDI8 or SUI16) AC4 AC4 L4 J3 DIGITAL OUTPUTS VOLTAGE INPUT J4 HVDINBD 5101734400 Drawing 12: High Voltage Interface Board 25
Serial Analog Input Module/8 Channel (SAI8) The Serial Analog Input Module (SAI8) accommodates a wide temperature, pressure, and voltage range. For a detailed diagram of an SAI8, refer to Drawing 13. The SAI8 has seven different types within its group. They are listed below: 1. Low temperature TP-1L/TP-1C 2. High temperature TP-1H 3. Low temp TP-2L thermistor 4. High temp TP-2H thermistor 5. Pressure (1-6V) 6. 0-10V 7. 4-20mA NOTE The system can support any combination of the SAI8 types listed above, up to a maximum of eight SAI8 boards. IMPORTANT Correct operation requires that you use probes with ranges that match the module temperature ranges. 12VAC Terminals Mounting Hole Dip Switch Communication LED Ser Analog In For example, Space and return sensors generally use the low temperature probes; whereas rack-related temperature monitoring, or HVAC discharge air temperature, generally use high temperature probes. Module Description SAI8 features include: Black case housing Dimensions of: 3.5 Wide x 5.2 Long x 2 High Two mounting holes Eight removable termination points for their respective inputs An eight position dip switch for addressing (dip switch values are numeric) A red LED for communication Drawing 13: Serial Analog Input Module In addition, each SAI8 is field changeable to any other module type. Danfoss/ECI recommends that the modules be specified at the time of purchase to ensure proper configuration. IMPORTANT If it is necessary to change the configuration of a module, Danfoss/ECI recommends contacting its Field Service or Engineering Department for assistance. 26
Installation Considerations Module power supply...12vac via Belden #8461 or equivalent Current draw...approx. 0.03A Current draw/ Pressure module...0.10a Maximum distance...100 ft. Serial communication connection to the ERC-1000...via 2 wire, 18 awg,...unshielded twisted pair;...belden #8461 or...equivalent Maximum distance...2000 ft. Module Temperature Range:TP-1 The SAI8 accommodates a wide temperature range: The TP-1L and TP-1C (standard low temperature) SAI8 accommodates a temperature range from -30 to 97 F. The TP-1H (standard high temperature) SAI8 accommodates a temperature range from 0 to 255 F. Module Temperature Range:TP-2 Danfoss/ECI offers two styles of thermistor boards dependent on temperature range selections: 1. Low range (TP-2L): (-30 to 97 F) thermistor; 2. High range (TP-2H): (0 to 255 F) thermistor. The low temperature range thermistors are generally used for subcooler monitoring and for coil in and coil out temperature monitoring. The high temperature range thermistors are generally used for rack-related monitoring. Module Pressure Range The standard pressure 1-6 Volt SAI8 supports the following types of sensors: 1. 0-100 PSI (SA-100D and SA-100A) 2. 0-500 PSI (SA-500D and SA-500A) 3. 1-6V Liquid Level Input 0-10V Module Input Range The 0-10V SAI8 Board accepts a 0-10VDC or 0-1mA (milliampere) input. Possible uses for this board include: Refrigeration liquid level Relative humidity Compressor frequency and current feedback Refrigerant leak kw monitoring NOTE 1-6V and 0-10V sensors require 12VDC excitation voltage supplied from the (+12) connection at the bottom left corner of the board. Serial Power Connections The SAI8 12VAC serial power connection (not polarity sensitive) connects in and out through the one 12VAC connection at the top left corner of the board. The In and Out wires twist and connect through one connector on this board. NOTE The 12VAC power cannot exceed 100 feet in distance from the SAI8. NOTE Check with your Danfoss/ECI representative to ensure that you order the correct temperature module for your application. 27
Serial Communication Connections The serial communication (polarity sensitive) connections connect in and out through the Ser In/ COM terminals on the board. CAUTION Observe the POLARITY of SERIAL COMMUNICATION connection when installing. Incorrect polarity causes an inaccurate reading or no reading at all. Sensor/Input Connections The SAI8 supports a wide variety of sensor types. These sensor types are referenced in the series of figures in Appendix D as listed below. Be sure to refer to the following connection diagrams in Appendix D before installation: Figure 10, Serial Communication and Connection Diagram Figure 15, Serial Analog Input Pressure Equipment Wiring Figure 16, Serial Analog Input 0-10V Power Monitoring Figure 17, Light Level Sensor Wiring Diagram Figure 18, Serial Analog Input Pressure Equipment Wiring Figure 19, Serial Analog Input 0-10V Equipment Wiring Figure 20, 4-20mA Sensor Input CAUTION Observe the polarity of connection when installing. Incorrect polarity causes an inaccurate reading or no reading at all. 28
0-10V RH Sensor Connection This section explains the installation procedures for 0-10V RH Sensors. It also illustrates the sensor input wiring connections from the sensor terminal block to the Danfoss/ECI input module. IMPORTANT Danfoss/ECI supports three 0-10V RH Sensors. Note which part # you have when referencing the installation requirements section. NOTE The Sensor Power Requirements and Wiring sections apply to all three Danfoss/ECI 0-10V RH Sensor Models. 0-10V RH Sensor Power Requirement Power Required...12VDC Power Supplied...via Danfoss/ECI SAI8...0-10V or SUI16 input...modules NOTE Each SAI8 0-10V and SUI16 Input Module can provide power for a maximum of five RH sensors. Installation Requirements Space Mount Sensor Danfoss/ECI Part # CC/0167640S 1. Position the base assembly with the arrow pointing upward. 2. Ensure that the sensor is exposed to an unrestricted air circulation. NOTE The sensor should be placed in an area that is representative of the average humidity and temperature of the controlled space. 3. Mount the sensor on an indoor wall approximately four to six feet above the floor. IMPORTANT Avoid locations where excessive moisture, corrosive fumes, vibration, or high ambient temperatures are present. Duct Mount Sensor Danfoss/ECI Part #CC/0167640D 1. Mount the sensor so that the sensor probe is in the center of the duct. NOTE The sensor should be mounted away from fans, corners, heating, and cooling coils, and other equipment that may affect the measurement of relative humidity. IMPORTANT Make sure that it is mounted in a location that receives adequate air flow for proper operation. 29
Outside Air Mount Sensor Danfoss/ECI Part # CC/0167640A 1. Mount the sensor in a sheltered area that is protected from rain. 2. Make sure that the sensor is mounted pointing down to prevent water collection in the sensor cavity. SUGGESTION Ideally, the sensor should be located on the north side of the building (under an eave) to prevent sun-heated air from rising up the building s wall and affecting the relative humidity of the sensor. For your convenience, mount the sensors using the base as a mounting template. Note that the space mount sensor is designed to install onto a standard wall handybox. Wiring Match your sensor to Drawing 14 or Drawing 15, and wire accordingly. Ensure that all connections comply with national and local codes. Wiring for the sensor should be twisted, shielded 18 awg, Belden #8770. Do not run sensor wires and AC power wires together in the same conduit or wire bundle. CAUTION Running sensor wires and AC power wires in the same conduit or wire bundle may cause a malfunction due to electrical noise. IMPORTANT When installing the sensor cover, be sure to ALIGN CONNECTION PINS WITH THE TERMINAL BLOCK. NOTE The SUI16 board in Dual 8 mode ACCEPTS 0-10V input type on GROUP ONE, channels 1-8 ONLY. 30
Connection Guide Terminal 2: to any channel 1-8 Terminal 3: to any common channel Terminal 5: to +12V unreg. 5 4 3 2 1 RH Sensor Terminal Block 0-10V Serial Analog Input Module Drawing 14: SAI8 to 0-10V RH Sensor Wiring Rev 5-7 Boards BINARY ADDRESS ID1 ID2 1 2 3 4 5 6 7 8 OFF ROCKER DOWN 8 CHANNEL MODE JUMPERS J2 J1 JY JX GROUP 1 GROUP 2 1 2 3 4 5 6 7 CHANNEL 8 9 10 11 12 13 14 CHANNEL 15 16 SERIAL 1 COM 2 3 COM 4 5 COM 6 7 COM 8 9 COM 10 11 COM 12 13 COM 14 15 COM 16 +12V UNREG. OUT IN 12 VAC COM OUT COM IN SERIAL 1 COM 2 3 COM 4 5 COM 6 7 COM 8 9 COM 10 11 COM 12 13 COM 14 15 COM 16 +12V UNREG. 5 4 3 2 1 RH Sensor Terminal Block IMPORTANT The SUI16 Board in Dual 8 Mode accepts 0-10V input type on Group One, Channels 1-8 only. CONNECTION GUIDE Terminal 2: to any channel, 1-8 Terminal 3: to any common channel Terminal 5: to any +12V unreg. Drawing 15: SUI16 to RH Sensor Wiring 31
Serial 16 Channel Universal Input Board (SUI16) Board Description (Dual 8 Channel Mode Operation) IMPORTANT The ERC-1000 supports the SUI16 Input Board in the Dual 8 Channel Mode ONLY! If using this board with your ERC-1000, CONFIGURE it for the DUAL 8 MODE ONLY. Installation Considerations Module power supply... 12VAC Current draw... approx. 0.10A Maximum distance... 100 ft. Serial communication connection to the ERC-1000:...via 2 wire, 18 awg,...unshielded twisted pair;...belden #8461/ or equiv. Maximum distance...2000 feet The 16 Channel Universal Input Board features include: Snap-track mounting Dimensions of 10 Long x 3.4 Wide x 1.1.25 High Dual 8 Channel Input Configuration 8 Channel Mode Jumpers Rev 5-7 Boards Channel Configuration Jumpers BINARY ADDRESS ID1 ID2 1 2 3 4 5 6 7 8 OFF ROCKER DOWN Dip Switch 8 CHANNEL MODE JUMPERS J2 J1 JY JX GROUP 1 GROUP 2 1 2 3 4 5 CHANNEL 6 7 8 9 10 11 12 13 14 CHANNEL 15 16 SERIAL 1 COM 2 3 COM 4 5 COM 6 7 COM 8 9 COM 10 11 COM 12 13 COM 14 15 COM 16 +12V UNREG. OUT IN 12 VAC COM OUT COM IN SERIAL Input Channels 12VAC Terminals Serial Comm. Terminals Drawing 16: Sixteen Channel Universal Input Board (Rev 5-8) 32
Dual 8 Mode Operation The SUI16 board works in the Dual 8 mode with the ERC-1000. This mode sets the board as two separate eight channel groups on one SUI16 board. Each group accepts only one type of input (i.e., digital, TP-1, 1-6V, etc.). In this mode, the SUI16 operates similarly to two eight channel input modules. The input types for Dual 8 channel mode can be as follows: 1-6 Volt (pressure) TP-1L TP-1H (group 2 only) 0-10 Volt (group 1 only) Digital Input Table 11: Binary Values for Dip Switches Used in Dual 8 Channel Mode Switch Number GROUP #1 GROUP #2 Binary Value Switch Number Binary Value 1 1 5 1 2 2 6 2 3 4 7 4 4 8 8 8 Note: Switches 5-8 are only used in the two group 8 mode. Board Address Setup In Dual 8 channel mode, the channels cannot be configured on a per channel basis, but must be configured as groups of eight, each of the same type of input. The board type setup in this mode is done through hardware and jumper configuration. Please refer to Drawing 16-Sixteen Channel Universal Input Board (Rev. 5-8), Drawing 17, and Drawing 18 for dip switch settings and jumper configurations. 1 2 3 4 1 OFF ROCKER DOWN 1 2 3 4 2 OFF ROCKER DOWN 1 2 3 4 3 OFF ROCKER DOWN Board ID Dip Switch Settings 1 2 3 4 5 6 7 8 5 6 7 8 5 1 5 OFF ROCKER DOWN OFF ROCKER DOWN OFF ROCKER DOWN 1 2 3 4 5 6 7 8 5 6 7 8 6 2 6 OFF ROCKER DOWN OFF ROCKER DOWN OFF ROCKER DOWN 1 2 3 4 5 6 7 8 5 6 7 8 7 3 7 OFF ROCKER DOWN OFF ROCKER DOWN OFF ROCKER DOWN The SUI16 board in Dual 8 mode is addressed with two separate IDs. The switches represent binary values. Switches 1-4 are used to address Dual 8 group one (channels 1-8). Switches 5-8 are used to address Dual 8 group two (channels 9-16). Address the groups via a binary-code dip switch setting. The sum of the switch values that are set to on designate the board address (1-4, group one; and 5-8, group two). Refer to Table 11 for the binary values of the switches. 1 2 3 4 1 2 3 4 5 6 7 8 5 6 7 8 OFF ROCKER DOWN 4 OFF ROCKER DOWN 8 OFF ROCKER DOWN OFF ROCKER DOWN Group 1 (Channels 1-8) Group 2 (Channels 9-16) Drawing 17: Dip Switch Settings For Dual 8 Channel Rev. 5 Board Setup 4 8 NOTE The numbers on the dip switch are not the binary value of the switch. Refer to Drawing 17 for the physical position of the switches per each group address. An SUI16 board in Dual 8 mode is actually addressed as two 8 channel boards in the ERC- 1000 system. 33
Board/ Channel Type Setup The SUI16 board in this Dual 8 mode requires that each group is set up with the same channel type within the group. The setup is done with a combination of hardware jumper configuration and software via the ERC-1000. 8 Channel Mode Jumper Each group has a pair of 8 channel jumpers. Refer to Drawing 18 below for their location. These jumpers set up the input type of each group on the SUI16 board. Set J1 and J2 for group one (channels 1-8), and JX and JY for group two (channels 9-16). Drawing 18 displays the correct jumper setting positions. Group 1 Mode Channel Jumpers Each channel has two jumpers that need to be set to indicate the desired channel type. Each channel in a group (group one, channels 1-8; and group two, channels 9-16) needs to be set to the same input type. This common channel type of each group also needs to match the eight channel mode jumpers setting for that group. Please see Drawing 18 or the silk-screen on your Rev. 5 or higher board for correct jumper settings. IMPORTANT The SUI16 board in Dual 8 mode ACCEPTS 0-10V input type on GROUP ONE, channels 1-8 ONLY. The SUI16 board in Dual 8 mode ACCEPTS TP-1H input type on GROUP TWO, channels 9-16 ONLY. J2 J1 TP-1L TP-2 and TP-2H ARE NOT optional input types in Dual 8 mode. J2 J1 J2 J1 J2 J1 0-10V (Group 1 only) Pressure 1-6V Digital Channels 1-16 Jumper Configurations TP-1L (Temp Sensor) TP-1H (Temp Sensor) 0-10V Group 2 Mode JY JX TP-1L JY JX TP-1H (Group 2 only) Digital-In 1-6V (Pressure) JY JX Pressure 1-6V JY JX Digital Legend Denotes Jumper Location Drawing 18: Jumper Configurations for Dual 8 Channel Rev. 5 Board Setup 34
Quick Reference Dual 8 Channel Rev. 5 Input Board Setup Danfoss/ECI s 16 Channel Modules must be configured in the field per your application needs. The setup procedure for 16 Channel Rev. 5 Input Boards follows. 1. Set the dip switches for communication ID. Refer to Drawing 17 for an example of the dip switch settings. NOTE This is a binary setting. Set switches 1-4 for Channels 1-8. Set switches 5-8 for Channels 9-16. 2. Set the four 8 Channel Jumpers to identify the input type of each 8 Channel group (see Drawing 18). For example: Set J-1 and J-2 for Channels 1-8. Set JX and JY for Channels 9-16. 3. Terminate all serial wiring at the bottom right corner labeled Serial. Ensure correct polarity. Terminate the common wire into the connection labeled COM. 4. Terminate 12VAC power at the bottom right corner of the board labeled 12VAC. 6. Set the jumpers according to their silkscreen label (found above the jumper) as per their channel type. Drawing 18 on the previous page shows an example of eight channel mode jumper configurations. NOTE In Dual 8 Mode, set all Channels 1-8 and 9-16 as a group of the same input. The input type for each group must match the setup for the 8 Channel mode jumpers (refer to step 2). 7. Terminate the sensors at the terminal strip at the bottom of the board. Terminate the input signal at the channel number and the common at the COM. NOTE There is not a common connection for each signal input. All common terminals are connected together for use with any channel. 8. Attach the positive load to the terminal strip labeled +12V UNREG at the bottom center of the board for any sensor requiring 12V power (e.g., pressure transducer, etc.). 9. Remove the 12VAC for approximately 15 seconds after all channel jumpers are set, and reconnect the power. NOTE Make sure that the voltage wiring is paired in either the In or Out position (NOT POLARITY SENSITIVE). 5. Set each input with two jumpers. NOTE Channel Number labels are located below the appropriate Jumpers 1-16 from left to right. 35
Rev. 3 Universal 16 Channel Input Board The early release of the universal input sixteen channel board was a Rev. 3 version. The Rev. 3 version follows all the setup rules discussed for the Rev. 5 board; however, the location and the settings of the jumpers are different. Please refer to Drawing 19 below for a depiction of the Rev. 3 board. For an example of the dip switch and jumper settings for the Rev. 3 board when operating in Dual 8 mode, reference Figure 25 in Appendix D at the back of this manual. IMPORTANT Prior to setting up a SUI16 board, ensure that you are referencing the proper rev. number. IN OUT SERIAL DATA 12VAC IN OUT +12V UNREG. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 CHANNEL 2 3 4 5 6 7 GROUP 1 8 GAIN OFFSET MORE PULLUP ANLG SENIN MIN PULLDN JUMPER LEGEND CHANNEL 9 10 11 12 13 14 15 16 GROUP 2 JX JY J1 J2 1 2 ID1 3 4 5 6 7 OFF ROCKER DOWN ID2 8 Rev. 3 Boards Drawing 19: Sixteen Channel Rev. 3 Board Serial Communication Wiring The communication between modules and the ERC-1000 is handled via a two wire, 18 awg, unshielded twisted pair, Belden #8461 or equivalent. See the chart below for appropriate wire size and length. Table 12: Communication Wire Size and Length Gauge Belden Wire Number Maximum Length 22 8442 250ft. 20 8205 500ft. 18 8461 2000ft Note: Also refer to the Field Wiring Reference Guide in Appendix C of this manual. Communication on the ERC-1000 end is handled through the PSI Board that is attached on the back of the ERC-1000 display (see Figures 2 and 5 in Appendix D). The communication loop is initiated from this board. IMPORTANT Every effort should be made to end the loop at this board. By connecting both ends to the PSI Board, a complete loop is provided. This provides another path to the signal if there is a break in one side of the loop. A red indicator LED is provided on the module to indicate the status of the serial communication (located to the left of the dip switch). A flashing LED indicates normal communication. A nonflashing LED indicates a problem. Refer to the Troubleshooting Section for more information. 36
ERC-1000 POWER MONITORING Watt Transducers The ERC-1000 uses a watt transducer (a monitoring device) to monitor power usage. The watt transducer deduces instantaneous power usage, and sends a proportional signal to the energy management equipment (i.e., the ERC-1000 Controller). The watt transducer works (i.e., determines watts) by measuring current inputs from current transformers (CTs), and by sensing voltage readings directly via its internal circuitry. CT input signals must range from 0 to 5 amps AC on Danfoss/ECI transducers. The voltage is application and transducer specific. The output signal to the ERC-1000 is from 0 to 10VDC. The ERC-1000 generates a kw reading by comparing the input signal to the software configuration scale factor. For example: If the scale factor is 1000, and the input reading is 5VDC, the kw reading displays as 500 kw. IMPORTANT The scale factor equals the maximum kw. Refer to Table 26 in Appendix C for scale factor values. Power System Environments The two most common power systems found in supermarket environments are 208V/120V systems or 480V/277V systems. Depending on the application of power monitoring, each watt transducer can have a different number of elements. The number of elements required is dependent on your application. Each element in a transducer requires the following inputs for a correct output: One CT input One voltage measurement input The two types of power systems used with Danfoss/ECI applications are three-phase, fourwire systems, and three-phase, three-wire systems. Three-Phase, Four-Wire Systems (House Power Monitoring) This system is generally used to monitor house power in conjunction with Danfoss/ECI s HVAC/ TOD controls (e.g., ERC-1000). Four wires typically come into a building (three phases and one neutral). This system is referred to as a 3- phase, 4-wire system. This type of system monitors loads that vary from phase to phase. This application uses three CTs to accurately sum the current usage. In addition, at least two voltage measurements are required (phase to neutral). This type of power monitoring requires a 2½ element transducer. A third voltage measurement (i.e., a three element transducer) is only required on systems that have unbalanced voltage on each leg. Danfoss/ECI recommends a 2½ element transducer in this situation. In 208V/120V systems, 208V is the phase- tophase voltage and 120V is the phase-to-neutral. In 480V/277V systems, 480V is the phase-to-phase voltage, and 277V is the phase-to-neutral voltage. 37
Three-Phase, Three-Wire Systems (Rack Power Monitoring) Three wires usually come into a typical refrigeration rack. The neutral is not required; hence, the term 3-phase, 3-wire system. A 3-phase, 3-wire system requires only two CTs because the third phase can be considered the return and, therefore, the sum of the other two. This type of power monitoring requires a two element transducer, which requires two phase-tophase inputs. Current Transformers A current transformer senses the high amount of current running through a primary electrical conductor and transforms the reading into an isolated low current signal that is read by a watt transducer. The ratio of a CT refers to the dividing factor associated with it. Danfoss/ECI supplies a wide range of CTs for different amp requirements. All Danfoss/ECI CTs have a standard five amp output ratio factor. CAUTION To avoid a POTENTIAL EXPLOSION if power is not shut down: ALWAYS short the output signal wires of the CT to each other before installation or service of the CT or watt transducer. If power is not shut down, the CT strives to output the current ratio as described above. Eventually, it will break down the insulation or air between the terminals. EXPLOSION MAY OCCUR! The following pages make connection references to each Danfoss/ECI Watt Transducer. Ensure that the connection diagram matches the model number of the watt transducer in use. If you have questions, contact a Danfoss/ECI representative. IMPROPER INSTALLATION CAN RESULT IN SERIOUS INJURY! For example: A 1600:5 CT puts out 5 amps when it senses a 1600 amp current through its field. Two types of CTs are available: 1. Split core CTs can be taken apart and reassembled around the bus bar or cable. 2. Toroidal CTs must be slipped over the conductor before cable termination. You cannot take them apart. Danfoss/ECI Watt Transducers Danfoss/ECI has introduced new kw watt transducers. They differ from the previous models in this way: they produce a true 0-10VDC output, so they DO NOT need a 22K ohm resistor installed across the output to the 0-10VDC. The new part numbers are cross referenced with the previous part numbers in the chart below. NOTICE The previous part numbers are now obsolete and the new ones serve as direct replacements. Table 13: Danfoss/ECI Watt Transducers Model Number Change Notice PREVIOUS PART NUMBER (obsolete) NEW PART NUMBER MODEL DESCRIPTION CC/A12080Y CC/20106400 208V, 3 Phase, 3 Wire CC/A12081Y CC/20106401 480V, 3 Phase, 3 Wire CC/A12083Y CC/20106402 208V, 3 Phase, 4 Wire CC/A12084Y CC/20106403 480V, 3 Phase, 4 Wire 38
Watt Transducer Two Element Connections Hookup Considerations kw Watt Transducer Model #: CC/20106400 (3 Phase, 3 Wire System, 208V) Application: Rack Power WARNING If power is not removed from the load, follow this procedure to avoid a POTENTIAL EXPLOSION: ALWAYS short the CT terminals BEFORE disconnecting the CT wires from the watt transducer. Refer to the drawing below and note the following information about two element connections: 1. The H1 side of the Current Transformer (CT) should always face the line side of the load. 2. Phase connections at Terminals 3, 4, 5, and 6 must adhere to the connections shown in the drawing below. NOTE If polarity of connection (as indicated in the drawing below) is not followed, the transducer output reading will be incorrect. Line Side L1 L2 L3 Output to 0-10V Module Phase Connections (-) (+) 1 2 3 4 5 6 WATT TRANSDUCER (Part # CC/20106400)* 7 8 9 10 11 12 1A fuse, voltage dependent on load supply X1 wire from the CT H1 side of the CT toward line side Current Transformer *The part # on the watt transducer must match the part number referenced above to ensure proper hookup. CT Connections L1 L2 L3 Load Side Drawing 20: kw Watt Transducer (Part #CC/20106400) Two Element Connection 39
Watt Transducer Two Element Connections Hookup Considerations kw Watt Transducer Model #: CC/20106401 (3 Phase, 3 Wire System, 480V) Application: Rack Power WARNING If power is not removed from the load, follow this procedure to avoid a POTENTIAL EXPLOSION: ALWAYS short the CT terminals BEFORE disconnecting the CT wires from the watt transducer. Refer to the drawing below and note the following about two element connections with this transducer model: 1. The H1 side of the Current Transformer (CT) should always face the line side of the load. 2. Phase connections at Terminals 3, 4, 5, and 6 must adhere to the connections shown in the drawing below. 3. Make sure a 120VAC external power supply is provided to Terminals 9 and 12. NOTE If polarity of connection (as indicated in the drawing below) is not followed, the transducer output reading will be incorrect. Line Side L1 L2 L3 Output to 0-10V Module Phase Connections (-) (+) 1 2 3 4 5 6 WATT TRANSDUCER (Part # CC/20106401)* 7 8 9 10 11 12 Legend 1 amp fuse, voltage dependent on load supply X1 Wire from the CT H1 Side of the CT toward line side Current Transformer *The part number on your watt transducer must match the part number above to ensure proper hookup. CT Connections 120VAC External Power L1 L2 L3 Load Side Drawing 21: kw Watt Transducer (Part #CC/20106401) Two Element Connection 40
Watt Transducer Two and One Half Element Connections Hookup Considerations kw Watt Transducer Model #s: CC/20106402 (3 Phase, 4 Wire System, 208V) CC/20106403 (3 Phase, 4 Wire System, 480V) Application: House Power WARNING If power is not removed from the load, follow this procedure to avoid a POTENTIAL EXPLOSION: ALWAYS short the CT terminals BEFORE disconnecting the CT wires from the watt transducer. NOTE If polarity of connection (as indicated in the drawing below) is not followed, the transducer output reading will be incorrect. Refer to the drawing below and note the following information about two and one half element connections: 1. The H1 side of the Current Transformer (CT) should always face the line side of the load. 2. Phase connections at Terminals 3, 4, 5 and 6 must adhere to the connections shown in the drawing below. 3. Make sure that the line supplied neutral wire is connected to Terminals 3 and 6. L1 Line Side L2 L3 N Output to 0-10V Module Comm Chan (-) (+) 1 2 3 4 5 6 7 8 WATT TRANSDUCER (Part #CC/20106402/403) 9 10 11 12 13 14 15 16 Legend 1 amp fuse, voltage dependent on load supply X1 Wire from the CT H1 Side of the CT toward line side Current Transformer *The part number on your watt transducer must match the part number above to ensure proper hookup. L1 L2 L3 N Load Side Drawing 22: kw Watt Transducer (Part #CC/20106402/403) 2½ Element Connection 41
PROGRAMMING AND INTERROGATING THE ERC-1000: ERC-1000 SOFTWARE CONTROL OVERVIEW Introduction The ERC-1000 controls a broad range of HVAC system configurations via software. Because of the ERC-1000 software s flexibility, you can customize your HVAC facility control. Danfoss/ECI s ERC-1000 monitors and controls the following components of an HVAC system: HVAC Units/maximum of 8 Refrigeration Racks*/maximum of 2 Time-Of-Day Outputs (time-dependent loads)/maximum of 16 Anti-Sweat Heaters/maximum of 2 Logic Statements/maximum of 32 Demand Shed Systems/maximum of 2 Satellite Systems/maximum of 8 in the ERC-1000/maximum of 16 in the EC-1000 *The EC-1000 does not support rack control. Menus and Screens Software control of the ERC-1000 is achieved via menu and screen manipulation at the ERC- 1000 unit or remotely on a PC or laptop computer. The menus and screens are arranged in a hierarchical order that is based on the frequency of screen usage during normal system operation. This manual provides screen information in a sequence format based on the ERC-1000 system design. NOTE Danfoss/ECI recommends that you use a laptop or PC for extensive programming during installations, etc. Danfoss/ECI supplies the terminal software (CNET) and the remote programming instructions. Installation Programming Sequence 1. CONFIGURATION: Set up the ERC- 1000 control capabilities during configuration. Customize the control to suit your facilities needs by including or excluding the features you need. NOTE Danfoss/ECI recommends that you take the time to understand the configuration features, thus allowing a more complete understanding of the functional control options via this unit. 2. NAMES OF LOADS OR UNITS: Upon system configuration, name all loads or units (HVAC, TODs, etc.). IMPORTANT This clarifies the individual Setpoints and Status screens. 3. SETPOINTS: Enter all setpoints for all control points (inputs and outputs). NOTE The optional monitor points can also be entered at this time. They are an excellent troubleshooting device, and they enhance operation viewing. 4. SENSOR NAMES: Name all sensors and monitor points at this time. This is of a potential service benefit, and also enhances the status view of the unit. 42
ERC-1000 Data Access and Data Entry The following checklist is a general introduction to the functions of the keypad and its results on the data fields. IMPORTANT New users should become familiar with these functions before programming the unit. To enter data for multiple-choice fields, use the up and down arrow keys to scroll the available choices. To complete your data entry for any field, press [ENTER], the cursor reappears either at the next field or to the left of the current field. To leave a field without changing its value, press [EXIT]. To change menu selections or data fields, use the appropriate arrow keys to move the cursor around the menu or screen. To change menus, press [the numeric key] that corresponds to the number of the desired menu selection, or press [ENTER] when the cursor is to the left of the number of the desired menu selection. To change pages (e.g., from HVAC #01 to HVAC #02), press [the right or left arrow] when the cursor is to the left of the page number. To enter the data portion of a programmable screen from the title line, press [ENTER], the cursor appears to the left of the first programmable data field on the screen. To begin data entry for any selected field, press [ENTER], the arrow cursor changes to an underline, indicating that new data will be accepted. To enter data for numeric fields, press either [appropriate numeric keys] or use the up and down arrow keys to scroll each digit in the field to the desired value. To enter data for alphanumeric fields, press either [appropriate numeric keys] or use the up and down arrow keys to scroll each character in the field to one of the following: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z., : # *! / & 43
ERC-1000 Abbreviations and Mnemonics The ERC-1000 screens contain a large amount of 'static' text, much of which is abbreviated. Static Text: Descriptive words and/or labels that explain the data fields. Table 14 below lists the most common abbreviated static text found in the ERC-1000 control software. This list contains the screen mnemonics (abbreviations) along with an explanation. Table 14: ERC-1000 Screen Mnemonics Mnemonic TOD ASH SPC OUT DCH DP NAF DEMD BOL AC RH HR LO AL HI AL AF OA Vspd Econo PHA or PH Nsetbk Amp FAN FLT PMON AFL SAT DPT or DP FN AH EAT Explanation Time-Of-Day Anti-Sweat Heater Space Temperature Outside Air temperature Discharge Temperature Dew point No Air Flow Demand System Boolean Logic Air Conditioning Relative Humidity Heat Reclaim Low Alarm High Alarm Air Flow Outside Air Temperature Variable Speed Economizer Phase Loss Night Setback Monitor Fan Amps Variable Speed Fault Power Monitor Air Flow Satellite Dew point Fan Auxiliary Heat Entering Air Temperature 44
HVAC Unit Control Features Introduction The ERC-1000 HVAC control system assumes no default relay or sensor assignments, setback schedules, or holidays. Basic configuration parameters and system setpoints are the only setpoints given initial (default) values by the ERC- 1000 control software, and you can modify these values at any time. The ERC-1000 simultaneously monitors plenum airflow, discharge temperature, space temperature, outside air temperature, and dew point for up to eight HVAC units. IMPORTANT The ERC-1000 does not control an individual HVAC unit until at least one space temperature sensor has been assigned to that HVAC unit. NOTE Each HVAC unit and its assigned sensors can be assigned descriptive names up to 24 characters in length. For identification purposes, Danfoss/ECI recommends that you assign these units and sensors a name. ERC-1000 HVAC Control Parameters The EC-1000 and ERC-1000 Version 7.20/ 5.20 or higher controls the following HVAC parameters: a maximum of four stages of: air conditioning heat reclaim auxiliary heat dehumidification control HVAC Scheduling via the ERC-1000 The ERC-1000 provides night setback scheduling for any HVAC unit by using two programmable on/off schedules per day over a perpetual, seven-day period. Additionally, it provides for a maximum of sixteen holiday schedules that specify two on/off schedules per date per HVAC unit; they can be programmed to override any regular on/off schedule. NOTE Any HVAC unit using night setback can copy both a setback and a holiday schedule from preprogrammed master schedules. HVAC Unit Configuration The ERC-1000 s HVAC Unit contains default and optional configuration systems. The default systems are always configured in an ERC-1000 system. They include air conditioning and auxiliary heat systems. The optional systems available include heat reclaim, dew point control, and plenum airflow. NOTE When an optional system is not configured, the status and setpoint fields (for that system) are absent from all relevant HVAC unit screens. IMPORTANT Any configured system (default or optional) is not functional until relays and sensors are assigned. In addition: Two fan relay assignments are provided for low and/or high speed fan control and a 0-10 volt output option is available for variable speed fan control. 45
Plenum Airflow Sensing Plenum airflow sensing enables all HVAC units to sense and act upon the presence/absence of airflow. NOTE Airflow sensing is not active for a particular HVAC unit until it is assigned as a setpoint. IMPORTANT If an HVAC unit is configured to sense airflow and airflow is not detected, all functions (excluding the fan) immediately shut down. Functions are not activated until airflow is restored or the airflow sensor is bypassed. This feature can be bypassed via the software override of sensors and/or relays. HVAC Unit Space Temperature Control Programmable setpoints govern HVAC unit control with an ERC-1000. These setpoints adjust to system parameters; however, the following limitations apply: 1. For air conditioning and heat reclaim systems, the air conditioning setpoint must be at least one degree above the heat reclaim setpoint. 2. The auxiliary heat must be at least two degrees below the heat reclaim setpoint. 3. Air conditioning and auxiliary heat setpoints must be at least two degrees apart. 4. No setpoint restrictions apply to dew point monitoring. Space Temperature Control via HVAC Unit Configuration The ERC-1000 controls space temperature based on a combination of space, discharge, and outside air temperature measurements. The ERC- 1000 uses space and discharge air temperature measurements to calculate the number of stages required to maintain the configured setpoints. NOTE One additional system stage is required for each 0.5 F deviation from the system setpoint temperature. The ERC-1000 has the ability to maintain space dew point temperature or a desired relative humidity. This control is calculated by a reading from a dew point sensor in relation to the dew point or relative humidity setpoint. The ERC-1000 maintains the dew point setpoint by using up to four stages of relay assignments for output control. Discharge Sensor Setpoint The discharge sensor has a 20:1 authority over the setpoint. In other words, the discharge must be 20 degrees from the setpoint in order to have a one degree effect on the setpoint operation. Lockout Feature The ERC-1000 can lockout certain functions based on outside air temperature. This is accomplished by assigning an outside temperature sensor and a lockout setpoint for the desired system and function. This function can be bypassed in two different manners: 1. Do not assign an outdoor temperature sensor 2. Assign the lockout to 97 degrees in accordance with a low temperature outdoor temperature sensor. 46
HVAC Fan Control via the ERC-1000 The ERC-1000 has two different options for HVAC fan control: 1. Conventional fan control with a high and low speed option. When two fan relays are assigned, the second relay is regarded as the high speed. The programmer has to select the stage for each function to energize the high speed (AC, AH, HR, RH or DP). If these values are not met, the fan operates at the low speed. The Setpoints screen also allows the programmer to select fan control in the auto control mode or ON all the time. 2. Variable speed fan control based on the discharge air temperature with a range setpoint. The option is there to program the minimal fan speed for general operation and a fixed fan speed when in the dew point and heat mode combined. NOTE The Setpoints screens default to conventional fan control unless the variable speed option is configured. Unoccupied Schedule You can program an unoccupied schedule via the ERC-1000. If you program an unoccupied schedule, the temperature is controlled by day and night setpoints. To use this programming option, enter an occupied schedule for the hours that the day setpoints will be active. During night setback hours, if the space temperature is satisfied for a five-minute period, the HVAC fan shuts down. The fan remains off until the space temperature requires further control, or the night setback is terminated. The night setback can also be configured for control via an input switch. This places the ERC- 1000 into the setback mode by energizing a switch. The switch supplies a closure through a digital input to be programmed from the Setpoints screen. 47
ERC-1000 Rack Control Features IMPORTANT ONLY the ERC-1000 SUPPORTS the rack control functions discussed in this manual. The EC-1000 DOES NOT SUPPORT rack control! Introduction The ERC-1000 controls a maximum of two complete HVAC racks via its software. NOTE A basic HVAC rack consists of these components: Suction And Discharge Pressure Sensors A Maximum of Eight Stages of Compressors A Maximum of Twelve Stages of Condenser Fans The ERC-1000 allows you to implement pressure control using PID control. PID control provides for separate programmable setpoints for control and derivative gains. (These gains allow the system to operate successfully under varying conditions.) NOTE For advanced control of racks, control options for variable speed compressors and condenser fans exist. The split condenser function supports software control for up to 12 fans. The ERC-1000 rack control features a variety of safety and alarm functions. They include, but are not limited to, the following: high and low pressure alarms, phase loss monitor, high head pressure compressor shutdown, and low suction shutdown. Rack Control/ Configuration A simple HVAC rack is configured by default. Many optional parameters exist; they provide for optimal system performance, depending on which hardware functions are connected to the rack. Some of the optional parameters include: run verification, liquid level monitoring, and split condenser and head pressure override. NOTE When any such optional system is not configured, status and setpoint fields for that system are absent from all relevant rack screens. IMPORTANT Any configured system is not functional until relays and sensors are assigned. Rack Control/ Suction & Head Pressure The rack control software group controls suction and head pressure on a maximum of two racks (i.e., individual suction pressures). The algorithm (software decision making process) requires the following parameters to achieve rack control: Cut-In and Cut-Out Setpoints The Actual Capacities of the Motors (Usually rated in horsepower or BTU) A Control Gain A Few Anti-Short Cycle Time Delays The rack control algorithm also has the ability to optimize run-time on virtually any type of rack, including those with uneven capacity compressors. The same algorithm is used for condenser fan control. Alternating or sequential cycling is available for both suction and discharge control. The strategy also includes the ability to control variable speed compressors, either alone, or in tandem with the standard motors. 48
Other features included are: 1. Digital inputs that activate auxiliary suction and/or head setpoints. 2. Digital inputs for phase loss, liquid level, oil failure, and run verification. 3. Head pressure control via temperature differential. Condenser fans cycle based on ambient temperature, with upper and lower pressure control limits. 4. Split condenser operation based on outdoor temperature for 6/12 condenser fans. 5. High head pressure override of compressors. 6. Desuperheater control based on manifold temperatures. 7. Additional monitor-only points for up to eight temperature sensors, 8 pressure sensors, four relays outputs, four digital inputs and one analog output per rack. NOTE Each RACK and SENSOR can be given a name (or description). Each rack name can be a maximum of 16 characters long and each sensor name can be a maximum of 24 characters long. The programmable flexibility of the input sensors and output relays provide for meeting each individual installation's requirements. A simple configuration section allows the user to add or subtract features. This feature is documented with detail in future sections of this manual. NOTE The configuration of the ERC-1000 dictates the viewing of the Setpoints and Status screens. 49
ERC-1000 Logic System Features Introduction The ERC-1000 supports a maximum of 32 systems for user-defined control statements. Logic statements (sometimes called Boolean Equations) are used to design a custom control system based on a variety of input and output configurations. Basic operation is based on If, Then decisions. The ERC-1000 software provides for a maximum of thirty-two logic statements. They can be 'stand alone system control' or supplemental control of any other existing load. Loads can be put into a software override condition at any time. NOTE When a load is returned to its normal system control, it assumes the state called for by the current logic statement control. ERC-1000 Logic Systems Control Logic statements follow a few simple rules for control: 1. The control action for the digital or relay output is determined by the truth of the statement. 2. These statements are unique to the programmer s situation to be controlled. 3. The statements are always in reference to the analog inputs, digital inputs, or reference output relays assigned to the statement. NOTE Reference outputs are relays assigned in another part of the program. The logic statement references the state of the output to maintain a true statement. Up to three analog inputs can be compared against either a single setpoint or a set of up to three other analog inputs. Up to three digital inputs and three reference outputs can be evaluated. Up to three relay outputs can be controlled by each logic statement. Each logic statement is independently evaluated. Time delays, alarm and event logging are available for each statement. 50
ERC-1000 Anti-Sweat Heater Control Introduction The ERC-1000 can monitor two dew point sensors and control two corresponding anti-sweat heater (ASH) outputs. The anti-sweat heater control is configured for either analog or digital. The digital control is the standard duty cycle control that has been used in all previous applications. Analog anti-sweat heater control is cycled by an assigned 0-10 volt analog output. Anti-sweat control can be based either on a shared dew point sensor (one assigned elsewhere in the ERC-1000) or on individual dew point sensors for each antisweat control output. Digital Anti-Sweat Heater Control The ERC-1000 controls each anti-sweat heater output by implementing an on/off cycle based on the duty cycle period, the temperature span of the high and low dew point setpoints, and the difference between the actual dew point and the dew point setpoints. The duration of the "on" cycle is calculated as the difference between the actual dew point and the low dew point setpoint divided by the setpoint span and multiplied by the duty cycle period. For example, If the duty cycle period is 10 minutes, the actual dew point is 56 F, the high dew point setpoint is 58 F, and the low setpoint is 49 F, then the corresponding duration of the "on" cycle is: (56-49)/(58-49) 10 = 7 minutes (7.777 minutes) The "off" cycle is the complement of the "on" cycle duration, as constrained by the duty cycle period. For example, The "off" cycle is: (10) (7.777) = 2.333 minutes. NOTE A duration equal to, or in excess of, the duty cycle period is considered full demand for an "on" cycle and no demand for an "off" cycle. At the user's discretion, digital anti-sweat control outputs can be put into a software override condition. When an anti-sweat control output is returned to normal system control from an override condition, it assumes the state called for by the control algorithm. Analog Anti-Sweat Heater Control The ERC-1000 can control anti-sweat heaters with 0-10 volt analog outputs. Anti-sweat control can be based either on a shared dew point sensor (one assigned elsewhere in the ERC-1000) or on individual dew point sensors for each anti-sweat control output. Calculations are made from high and low dew point setpoints. ASH heater output ranges in analog value from 0-100%. The heaters are at 100% capacity when the space dew point is above the high setpoint; conversely, they turn off completely at dew points below the low setpoint. Analog anti-sweat control can be put into a software override mode by offsetting the assigned dew point sensor to read above the high setpoint. When an anti-sweat control output is returned to normal system control from an override condition, it assumes the state called for by the control algorithm. 51
ERC-1000 Demand Systems Control Introduction The ERC-1000 can support two systems for demand monitoring and shedding. Each system can control eight output loads. A kilowatt sensor is assigned to a demand system, with appropriate shed and restore setpoints programmed. Up to eight relay outputs are assigned, and priority is given to each. The fan cycling is selected in the Setpoints screen for auto cycling or on all the time. In unoccupied mode, the fan turns on when the system calls for heat or cool. The outdoor lockout works the same as in an HVAC system. In cooling mode, if the outside temperature is below the lockout setpoint, the cooling load goes off. In heating mode, when the outside temperature is above the lockout setpoint, the heating load goes off. When the demand kw exceeds the shed setpoint, the ERC-1000 calculates when to shed the appropriate loads. When the kw is brought below the restore setpoint, the loads are returned to normal control. Minimum on and off times are programmable. A peak schedule is available so that separate shed and restore setpoints can be used for peak and off peak hours. ERC-1000 Satellite Systems Control Introduction The ERC-1000 can support eight independent satellite systems. These can be selected for heating or cooling loads, with or without fan controls. Each system can have one space temperature sensor, one outdoor temperature sensor, one fan relay, and one heating or cooling relay. If a separate fan relay is not required (i.e., space heater), the fan relay assignment should remain 0-0. The satellite systems have independent occupied/unoccupied time-of-day modes. System lockout based on the outside temperature is available. Satellite Systems Control Modes Each satellite system can be selected in the HEAT mode or COOL mode. These modes set the control action for the system. If COOL mode is selected, when the temperature goes above the setpoint, the output load is turned on. If HEAT mode is selected, when the temperature goes below the setpoint, the output load is turned on. 52
ERC-1000 Time-of-Day Output Control The ERC-1000 provides 16 time-of-day loads. The ERC-1000 employs a maximum of two programmable on/off schedules per day to control individual time-of-day outputs. Up to sixteen holiday schedules may be defined to supersede the normal on/off schedules on specified dates. Analog or digital light level control is available in conjunction with the TOD setpoints. The capability is in the ERC-1000 to control variable ballasts using a 0-10VDC output. This feature requires that the light fixtures be fitted with the ballast that can dim the fluorescent light based on a 0-10VDC signal. Time-of-Day Output Configuration Time-of-day output relays are totally configurable; even the polarity of each relay (normally open or closed) can be programmed to suit the requirements of a particular time-of-day application. If light level control is desired, you can configure either analog or digital. If digital light level is configured, either open or closed contacts can be selected. Time-of-Day Output Control Time-of-day output control is intended to drive only time-dependent loads. Time-dependent loads are energized and de-energized in accordance with user-defined on/off schedules. Time-of-day outputs can be put into a software override condition at any time. When a time-of-day output relay is returned to normal system control from an override condition, it assumes the state called for by the current on/off schedule. Analog Light Level Control Analog light level control is initialized from the TOD Configuration screen. Danfoss/ECI offers two types of analog light level sensors: 1. 0-97 foot candle sensor; configured as TEMP and 2. 0-1000 foot candle sensor; configured as 0-10 volt. The difference between the two sensors is the range of light level monitored for control. The setpoint assignments are very similar. The load goes OFF if the light level is above the setpoint. It does not come back on until the light level goes below the setpoint, minus the differential. The 0-1000 foot candle application has an option to enter a scale factor from the Setpoints screen. This value defaults to 1000 to correlate with the 0-1000 foot candle sensor. NOTE If on/off schedules are used, lighting loads are dependent on both the TOD schedule and the light level input. Digital Light Level Control Digital light level control is initialized from the Configuration screen. This control is only looking for an on and off condition from the light level sensor. The Setpoints screen requires the user to enter the light level input, and the input type. The input type is an on or off selection. The type selected is the condition for which the load is deenergized (turned off). For example: If input type is selected ON, the ERC-1000 requires an Open or Off sensor input to turn the load to an on condition. NOTE If on/off schedules are used, lighting loads are dependent on both the schedule and the light level input. 53
Variable Ballast Control Variable ballast control is an option found in the TOD Configuration screen. The variable ballast option becomes active if analog light level is configured. The variable ballast lighting algorithm is designed to maintain an optimal light level. This light level is achieved via a 0-10 volt output in accordance with the selected setpoint. The user selects an analog output, day and night setpoints, and a light level sensor input. The day and night setpoints are in relation to the on/off schedule (ON time references to the day setpoint). The output varies in an attempt to maintain the desired light level setpoint. The installation must have ballast installed that can accept a 0-10 VDC variable signal. The ERC-1000 Channel Assignment Capabilities The ERC-1000 has the capability to calculate and control a significant number of inputs and outputs (64 analog inputs, 32 analog outputs, 64 digital inputs, and 64 digital outputs). Due to these amounts, a channel numbering convention has been adopted. Each input or output module contains eight (in some cases four) channels. There can be up to eight of each type of module installed and they are numbered as such from one to eight. The system works like this: Each channel number contains two digits separated by a dash ("-"). The first digit indicates the module address number on which the channel can be found, and the second digit indicates the actual channel number on that module. For example, digital input channel 6-5 corresponds to the fifth channel on the sixth digital input module. This numbering system is consistent throughout the ERC-1000 environment, to include hardware labeling, software programming, and remote communications for all types of I/O modules. 54
The Window/ Page Approach to User Interface The 4x40 LCD character display used by the ERC-1000 presents an organized view of system control and status information. The numeric keypad makes programming and interrogating the ERC-1000 quick and easy. To efficiently access ERC-1000 screens, you must understand the hierarchical arrangement. All user-accessible data in the ERC-1000 are referred to as data fields. The data fields are organized into screens, and these screens can be subdivided into pages. The pages contain isolated information, such as status information, for each HVAC unit. The information can be accessed with a systematic procedure. The first selection screen is the Main Menu screen. Select the information to view via the ERC-1000 keypad. The ERC-1000 displays another screen with selections more defined to the information that the user desires to view. Once a selection is made from all related selection screens, the desired information is displayed. This type of intuitive approach is implemented throughout the ERC-1000 to keep keystrokes to an absolute minimum. When moving through menus, pages, and data fields, the user can speed the process by holding down the desired arrow key. This causes the action to be repeated until the key is released. NOTE When moving from page to page, the window remains in the same relative position on each page. For example, On the HVAC Unit Setpoints screen, the user can scroll down to the section containing relay assignments and view the relay assignments for each configured UNIT by changing pages. The ERC-1000's LCD display is a 4-line view port or "window" to a single page of ERC-1000 control information (status, setpoints, etc.). By using the up and down arrow keys, you can move the 4-line window vertically over the contents of an entire page. By using the right and left arrow keys, you can move the 4-line window horizontally from one page to the next (e.g., UNIT 1 to UNIT 2). You can also jump to specific pages by typing the appropriate page number (e.g., skipping from UNIT 1's page to UNIT 12's page can be accomplished by simply pressing the keys marked "1" and "2"). 55
Schedule Programming for the ERC-1000 The ERC-1000 software allows for userprogrammable on/off schedules in the Time-of- Day (TOD) outputs control. It is also available as an option on the HVAC unit control. Follow the rules below to program these schedules: 1. Schedule times in a 24-hour format. 2. Each on/off period consists of a start-time and a stop-time. 3. The start-time of any on/off period must precede the stop-time of that period. 4. If a first on/off period is defined for a given daily schedule, then the first starttime of the second on/off period must be later than the stop-time of the first on/off period, as shown in the screen example, below. 5. If the second schedule (for example, TUE2) is not needed for programming, then the user should leave setpoints at the 00:00 value. The ERC-1000 controls as if this on/off schedule does not exist. 6. If all setpoints are programmed at the default 00:00 for the entire day (For example, SAT1 & SAT 2 in the screen example below), then the load switches to an ON condition at the 00:00 hour. If the load is already switched on via prior setpoints, then it remains at an on condition. If all program setpoints for the entire schedule remain at 00:00 (default setpoints), the load remains on all the time. A setpoint of 00:01 for the first on time has the same result as 00:00. 7. If the load has been turned off and needs to remain off the next day, the program should be set as follows: a. The first on time can be set as 24:00 and all other setpoints at 00:00. b. The first off time can be set at 00:01 and all other setpoints at 00:00. 8. If the first on times for the day are set at 00:01 or 00:00, then the ERC-1000 controls with the same action. If the loads are on, they remain on. If they are off, they turn to an on condition at 00:00 for that particular day. Master Occupied Schedule: Sun1 00:00-00:00 Sun2 23:00-24:00 Mon1 00:01-04:00 Mon2 09:00-17:00 Tue1 09:00-17:00 Tue2 00:00-00:00 Wed1 09:00-17:00 Wed2 00:00-00:00 Thu1 09:00-17:00 Thu2 23:00-24:00 Fri1 00:01-04:00 Fri2 09:00-17:00 Sat1 00:00-00:00 Sat2 00:00-00:00 56
ERC-1000 Menus, Screens, and Related Data Fields The following pages present examples of all of the ERC-1000 menus and screens, complete with brief explanations of their contents and application. ERC-1000 Memory Check Upon power-up or reset, the ERC-1000 performs a memory check to determine whether the contents of the ERC-1000 s battery-backed RAM has been corrupted. If the ERC-1000 memory check fails, the following message is displayed: Memory Invalid Initializing... ECI ERC-1000 SOFTWARE VERSION X.XX This normally occurs when a new version of ERC-1000 firmware is installed in the unit. At this point, the ERC-1000 must be completely reprogrammed. This message also appears when the battery back-up is unable to sustain RAM memory during a prolonged power failure (because the battery on the ERC-1000 CPU Board needs to be replaced). Before reprogramming the unit, you must obtain a new battery from Danfoss/ECI. Only UL approved batteries should be used in the ERC-1000. When the ERC-1000 passes the memory check, the title screen displays. 57
ERC-1000 Title Screen The ERC-1000 Title screen appears when keypad input to the ERC-1000 has ceased for more than fifteen minutes, or when the ERC-1000 has recovered from a temporary loss of line power. When you enter an access code or press [ENTER], this screen changes to the ERC-1000 Main Menu. ECI ERC-1000 SOFTWARE VERSION X.XX Enter access code: Special access codes are required to program the ERC-1000. The factory settings for these access codes are 1234 (Level 1), and 9876 (Level 2). View Only access (Level 0) is granted when you do not enter a Level 1 or 2 access code. Once the ERC-1000 has been installed and completely programmed, change the Level 1 and Level 2 access codes to restrict programming access. A Level 1 access code allows setpoint change, names and overrides. A Level 2 access code allows Level 1 access, in addition to I/O assignments, configuration changes, and master clear functions. NOTE Record the version number of the installed software and be sure to reference it when discussing any problems or asking any questions concerning your ERC-1000 unit with a Danfoss/ ECI Field Service or Applications Engineer. Once your ERC-1000 has been programmed, it will be more often accessed to review system status and performance information than to be reprogrammed. For View Only access, just press [ENTER]. However, during maintenance or repair work on your environmental control system, and sometimes with the change of seasons, you may need to access certain programmable data fields. Remember to enter the access code that is appropriate for your programming needs. 58
ERC-1000 Menu Screen Overview HVAC UNITS RACKS AUX OUTPUTS LOG MENU OVERRIDES SYSTEM 59 Status Setpoints HVAC Names Sensor Names Configuration Racks Status Setpoints Overview Rack Names Sensor Names Configuration AUX RACK CONTROL Monitoring Points Monitor Names Desuper Setpoints Logic Statements Status Setpoints Clear Latch Logic Names Sensor Names Configuration Anti Sweat Heaters Status Setpoints ASH Names Sensor Names Configuration Demand Systems Status Setpoints Priority Names Demand Names Sensor Names Configuration Satellites Status Setpoints Satellite Names Sensor Names Configuration Run Time Log HVAC Log TOD Log ASH Log Satellite Log Rack Log Note Log Alarm Log Event Log Power Log Daily Hourly I/O Logs Analog Inputs Analog Outputs Digital Inputs Digital Outputs TOD Overrides Override Log Digital Outputs Digital Inputs Sensor Offsets Date/Time Daylight Savings Alarm Dial Out Phone Numbers Alarm Setup Dial Log Miscellaneous I/O List Analog Inputs Analog Outputs Digital Inputs Digital Outputs Access Codes System Configuration Miscellaneous Analog Input Configuration Holiday Schedule Master Clear TOD Outputs Status Setpoints TOD Names Sensor Names Configuration
ERC-1000 Main Menu ERC-1000 SOFTWARE CAPABILITIES The ERC-1000 Main Menu appears after entering an access code or pressing [ENTER] at the ERC-1000 Title screen. This menu is a Table of Contents to the configuration and control functions of the system. ERC-1000 MAIN MENU 1 HVAC Units 4 Log Menu 2 Rack 5 Override 3 AUX Outputs 6 - System HVAC Units Menu The HVAC Menu is selected from the ERC- 1000 Main Menu. It is a Table of Contents to the ERC-1000 s HVAC unit configuration and control functions. If you intend to make any programming changes to screens on this menu, remember that different levels of access are required by different data fields. HVAC UNITS 1 Status 4 HVAC Names 2 Setpoints 5 Sensor Names 3 - ***unused*** 6 - Configuration 60
HVAC Unit Status Screen Introduction The HVAC Unit Status screen presents all relevant status data concerning each HVAC unit configured for control by the ERC-1000. The screen title consists of the unit number and userdefined name of the unit. NOTE Depending on the configuration options that you have selected (see the HVAC Configuration screen), some data fields may be absent from this screen and all its subsequent pages. The same screen contains all text and data fields currently available for this screen; they are not shown if they have not been selected. HVAC Unit Status Screen Description Line 1 01-HVAC MAIN HVAC UNIT The first line, shown above, displays the userprogrammed name for the HVAC system. Line 3 SPC = 72f RTN = 60f DCH = 55f DP = 50F The third line displays the actual operating temperatures for the analog inputs. Each sensor is denoted by its three-letter mnemonic. The sensor option and their mnemonics are as follows: SPC (Space), DCH (Discharge), RTN (Return), DP (Dew point), and RH (Relative Humidity). The sensor mnemonic is followed by a temperature reading in degrees Fahrenheit, as is shown in the screen example. In the case of a dew point or RH sensor, the sensor fields may be altogether absent from this screen and all its subsequent pages. This shows that the dew point control configuration option has not been selected (see HVAC Unit Configuration screen). Line 4 The fourth line display depends on the option chosen for Airflow Control in HVAC configuration. The available options are: standard, variable speed fan, damper-dew point, and damperrelative humidity. They are discussed below. Line 2 STATUS = FAN OUT = 80F Standard Option Fan Spd = 1 The second data line of this sample HVAC Unit Status screen consists of a status of the HVAC system. A fan status of NAF shows No Air Flow, as monitored by the airflow switch (if used). An inverse P character indicates a phase loss, as monitored by the digital phase loss input (if used). If a system is unable to come on due to outdoor lockout, the condition is displayed on this line as AC Lock, HR Lock, AH Lock, or if both the AH and HR are locked out, as HT Lock. If configured for Hi/Lo fan delay, the delay counts down on this line. This line also displays the outdoor air temperature (OUT), if assigned. The STANDARD option (shown above) displays the status for single or two-speed fan. A - hyphen indicates that the fan is off. A 1 indicates that the first (low) stage is on. A 2 indicates that the second (high) stage is on. Variable Speed Fan Option Fan Spd = 100% The VARIABLE SPEED FAN (var speed fan) option (shown above) displays the fan speed as a percentage value. 61
Line 4 (continued) Damper-Dew Point & Damper-Relative Humidity Option Fan Spd = -2 B-P Dmpr opn = 100% The DAMPER-DEW POINT (damperdewpt) and the DAMPER-RELATIVE HUMIDITY (damper-relhum) options display the fan status for single or two-speed fan. A - hyphen indicates that the fan is off. A 1 indicates that the first (low) stage is on. A 2 indicates that the second (high) stage is on. Also, note that this option shows the position of the bypass damper as a percentage value. Line 5 Units On: AC12--DPoo--HR---AH--- The fifth data line consists of the output status for the AC, DP, HR and AH loads. Notice the following indicators for each system stage with an assigned relay. They are as follows: a hyphen (-) indicates Off; the stage number (1, 2, etc.) indicates On; and an override symbol ( o ) to the immediate right of the two-letter system designator indicates override. For example: A small o shows that the load should be off under HVAC control, but a logic statement is also using the same load and wants it on. A small f shows that the load should be on, and a logic statement is also using the same load and wants it off. are aligned with the system designators on the fifth line. Line 7 AC DP HR AH Lockout: 50f 50f 90f 75f The seventh line consists of the outside air temperature lockout setpoints, also arranged by system. IMPORTANT The remaining sets of lines (described below) depend on the HVAC configuration of the ERC- 1000 unit. DEPENDING on the HVAC CONFIGURATION, the lines shown below may not be present on the screen! The following line is seen with variable speed fan selection only: AC DP HR AH DCH Setpts: 55f 45f 85f 85f If the VARIABLE SPEED FAN option is used, the next line (shown above) displays the discharge (DCH) setpoints for the AC, HR, and AH systems. NOTE For more information about the variable speed fan option, see the Variable Speed Fan Control information that follows in the HVAC Units Setpoints screen section of this manual. NOTE If no symbol is visible next to a system designator, then no relays have been assigned to that system. Line 6 AC DP HR AH Day Setpts: 71f 52f 69f 67f The sixth line consists of an indicator of the current unit mode ( Day or Ngt ), followed by the corresponding system setpoints. These setpoints 62
The following line is seen with variable speed fan selection only: Relative Humidity: 60% If the HVAC system has both a space sensor and a dew point sensor assigned, the unit calculates and displays the relative humidity. NOTE This value is for reference only! You cannot control via this value. The following lines are seen with damperdew point or damper-relative humidity selection only: Entering Air Dewpoint: 55f If the unit is configured for DAMPER-DEW POINT or DAMPER-RELATIVE HUMIDITY, this line appears. It displays the Entering Air Dew Point. This value is used in the Seasons-4 SmartCoil calculation. The following lines are seen with damperdew point or damper-relative humidity selection only: Opt. Leaving Air Temp: 50f If the unit is configured for DAMPER-DEW POINT or DAMPER-RELATIVE HUMIDITY, this line appears. It displays the Optimal Leaving Air Temperature. This value is used in the Seasons-4 SmartCoil calculation. Remaining Lines (of the HVAC Unit Status Screen): Sensors/Inputs: The remaining lines of the HVAC Unit Status screen detail the associated unit sensors and inputs (as shown above). This provides you with the following information: the system mnemonic for each sensor or input, the I/O board and channel number, sensor or input status, and the user-defined identifier. 01-HVAC MAIN UNIT Status = FAN Out = 80f SPC = 72f RTN = 60f DCH = 55f DP = f Fan Spd = -- Units On: AC---- DP---- HR- AH--- Day Setpts: 71f 52f 69f 67f Lockout: 50f 50f 90f 75f Relative Humidity:0% Sensors/Inputs: Standard HVAC Status Overview 63
HVAC Units Setpoints Screen The title line of this screen contains the unit number and user-defined name of the unit. All subsequent lines are addressed and explained in this section. They follow in the order that they would appear on a fully configured system. NOTE Program all parameters that affect HVAC unit control via this screen. Under the title line, you see the parameters for configuring the system. They include the following categories: system, day, night (ngt), lockout (lout), and delay. Day Setpoints: The ERC uses the day column setpoints to control all configured HVAC loads during the occupied hours of the facility. Note that if no occupied schedule is programmed, the ERC uses these setpoints as default. Night Setpoints: The ERC uses the night setpoint column to control all configured HVAC loads during the unoccupied or night setback hours of the facility. NOTE When you configure the day and night setpoints for AC and HR, you must assign at least a one degree temperature difference (1 deadband) between them. When you configure the day and night setpoints for HR and AH, you must assign at least a two degree temperature difference (2 deadband) between them. Lout (Lockout): The ERC references the outdoor air sensor (OUT snsr) to these setpoints to lockout HVAC loads during these conditions: AC and DP when the outdoor air is below the programmed Lout setpoint. HR and AH when the outdoor air is above the programmed Lout setpoint. Delay: This is a user-defined inter-stage delay between all configured HVAC loads. The delay does not affect the first stage for each type of load. The first stage comes on immediately, with each additional stage waiting for the programmed delay before coming on. Hi Al (High Alarm): If the space temperature goes above this setpoint, the ERC generates a high temperature alarm. Lo Al (Low Alarm): If the space temperature goes below this setpoint, the ERC generates a low temperature alarm. Economizer: When configured, an assignment is made for the outside air (OA) and relative humidity (RH) setpoint. Both must be below the assigned setpoints for the economizer relay to energize. Fault Input: Assign board and channel number for the fault input for the inverter driving the variable speed fan. The fault input is a digital input that looks for an open contact to activate. Reset Relay: Assign board and channel number for one reset relay. The reset relay looks for a fault signal from the inverter. It tries to reset the inverter by energizing 3 times for 5 seconds each. It does this in 20 second intervals. The reset relay is typically wired normally open. Switchover Relay: Assign board and channel number for one switchover relay. The switchover relay de-energizes when the ERC detects a fault from the inverter, and the reset relay has failed to reset the inverter. This is meant to be the bypass or failsafe condition to keep the fan running in case of an inverter malfunction. Typically, the switchover relay is wired normally closed. Fan Output: Assign board and channel number for one fan output. The fan output is a 0-10VDC analog output that drives the signal sent to the inverter. It has a linear relationship with regard to its output and the fan speed. AC Relays: Assign board and channel numbers for up to four stages of Air Conditioning. Typically, the AC Relays are wired normally open. DP Relays: If configured, assign board and channel numbers for up to four stages of dehumidification. These typically mimic the assignment for the AC Relays. 64
HR Relays (Heat Reclaim Relays): If configured, assign board and channel numbers for up to four stages of Heat Reclaim. Typically, the HR relays are wired normally open. AH Relays (Auxiliary Heat Relays): Assign board and channel numbers for up to four stages of Auxiliary Heat. Typically, the AH Relays are wired normally open. FN Relays (Fan Relays): Assign board and channel number for low speed (LO) and high speed (HI) fan, if applicable. Assign single stage fan to the LO setpoint. Typically, the fan relays are wired normally closed. Alarm Relay: Assign board and channel number for the alarm relay. The alarm relay turns on because of high temperature, low temperature, no air flow, phase loss, and variable speed fault alarm. Typically, the alarm relay is wired normally closed. Econo Rly (Economizer Relay): Assign board and channel number for the economizer relay. Typically, the relay is wired normally open, controlled by the Economizer setpoints detailed above. AFL Inputs (Airflow Inputs): Assign board and channel numbers for up to six airflow input devices. Airflow inputs are digital inputs that sense a closed contact when airflow is present. If airflow is not present, the contact opens and the ERC shuts down all HVAC loads. This sequence only occurs while the ERC is calling for the fan to be on. PHA Input (Phase Loss Input): Assign board and channel number for one phase loss monitor. The phase loss input is a digital input that senses a closed contact during a proper phase condition. In the event of a phase loss, the contact opens and the ERC shuts down all loads associated with that HVAC Unit. Nsetbk Input (Night Setback Input): Assign board and channel number for one night setback input. The night setback input is a digital input that looks for a closed contact to activate. Upon activation, the ERC uses the programmed night setpoints to control the HVAC Unit. NS Ovr Input (Night Setback Override Input): Assign board and channel number for one night setback override input. The night setback override input looks for a closed contact to activate. Upon activation, it overrides the programmed occupied schedule. As a result, the ERC uses the day setpoints to control the HVAC Unit. SPC Snsr(s) (Space Sensors): Assign board and channel numbers for up to six space temperature sensors. The ERC averages the six sensors to control the HVAC loads. DCH Snsrs (Discharge Sensors): Assign board and channel numbers for up to six space temperature sensors. The ERC uses the coldest sensor in AC mode and the warmest sensor in HR and AH mode during its calculations (a 20:1 ratio). RTN Snsrs (Return Sensor): Assign board and channel numbers for up to six return sensors for control purposes. They are provided as monitoring points only. INS DP Snsr (Inside Dew point Sensor): Assign board and channel number for one dew point sensor. Must be terminated at a low temp (TP-1) style module or input. INS RH Snsr (Inside RH Sensor): Assign board and channel number for one relative humidity sensor. Typically terminated at a 0-10V style module or input. OUTS RH Snsr (Outside RH Sensor): Assign board and channel number for one relative humidity sensor. Used for control of economizer relay. Typically terminated at the low temp (TP-1) module or input. Can be terminated as a high temp (TP-1H) input. OUT Snsr (Outside Air Sensor): Assign board and channel number for one outside air sensor. Used for ambient lockout of HVAC loads. Typically terminated at a low temp (TP-1) module or input. Can be terminated as a high temp (TP- 1H) input. 65
Amp Sensor: Assign board and channel number for one amp sensor. Used to monitor the current draw of the fan. Requires that a current sensor that outputs a 0-10VDC signal be installed on the power wiring to the fan. If configured, the scaled factor determines the range of the assigned sensor. Hi-Speed Fan @: If you assign a hi speed fan relay, you can also designate the system stage at which the high speed fan is activated for each configured HVAC Load. For example: AC 2, HR 1, AH 3, DP 2 In the example above, the high speed fan is activated when the ERC calls for the second stage of AC, the first stage of HR, the third stage of AH, or the second stage of DP. FN HI/LO Dly: If configured for high-speed fan, this delay is activated when shifting from high to low speed. During this time, the airflow alarm is overridden. NOTE If not using this feature, leave the 00 in the field. Fan Control: With this option, you can control when the fan is called for by the ERC. With the AUTO, option, the fan runs when any HVAC load is called for. When all HVAC loads shut down, the fan runs for an additional five minutes before cycling off. With the ON option, the fan runs all of the time. ON is the default option. NOTE In night setback mode, the fan cycles off if all loads are satisfied for five minutes, even if ON is selected. Hr Flush Time: At this programmed time, the ERC energizes all programmed HR loads for the flush duration that is programmed. The ERC does one load at a time until all loads have been flushed. Occupied Schedule: This option can be selected as USED or UNUSED. If the schedule is used, the ERC uses the time schedule to cycle the HVAC setpoints from day to night setpoints. SC Constant (SmartCoil Constant): This value is used when controlling a Seasons-4 SmartCoil. It varies between units and is set by Seasons-4. IMPORTANT Danfoss/ECI does not supply the SmartCoil constant! It must be obtained from Seasons-4. Damper Output: Assign a board and channel number for the analog output that controls the motion of the SmartCoil Bypass Damper. EAT RH Snsr (Entering Air Temp Relative Humidity Sensor): Assign board and channel number of the relative humidity sensor used for control of the Seasons-4 SmartCoil. This sensor should be duct mounted and terminated at a 0-10V module or input. NOTE This setpoint is only available if configured for AIRFLW CONTROL: DAMPER-RELHUM. EAT Dewp Snsr (Entering Air Temperature Dew Point Sensor): Assign board and channel number of the dew point sensor used for control of the Seasons-4 SmartCoil. This sensor should be a low temp (TP-1) style input. NOTE This setpoint is only be available if configured for AIRFLOW CONTROL: DAMPER- DEWPT EAT Temp Snsr (Entering Air Temperature Sensor): Assign board and channel number of the temperature sensor used for control of the Seasons- 4 SmartCoil. This sensor should be a low temperature (TP-1) style input. 66
01-HVAC FOOD SECTION System: Day Ngt Lout Delay AC 75F 80F 70F 03 m HR 68F 65F 90F 02 m AH 65F 60F 80F 05 m DP 56F 60F 97F 05 m Hi Al 90F Lo Al 30F 00 m Economizer: QA 65F RH 50% NOTE: This section of the HVAC Setpoints screen varies, depending on the configuration control in use. For an example of this screen configured for Variable Speed, Damper-Dew Point, or Damper-Relative Humidity control, see the screen cut-outs on the following page. AC relays 1-1, 1-2, 0-0, 0-0 DP relays 2-3, 0-0, 0-0 HR relays 1-4, 1-5, 0-0 AH relays 1-7, 1-8, 2-1 FN relays 2-4, 0-0 Alarm Rly 0-0 Econo Rly 0-0 AFL inputs 0-0, 0-0, 0-0, 0-0, 0-0, 0-0 PHA input 0-0 Nsetbk inpt 0-0 Ns Ovr input 0-0 SPC snsrs 0-0, 0-0, 0-0, 0-0, 0-0, 0-0 DCH snsrs 0-0, 0-0, 0-0, 0-0, 0-0, 0-0 RTN snsrs 0-0, 0-0, 0-0, 0-0, 0-0, 0-0 INS DP snsr 0-0 OUTS RH snsr 0-0 OUT snsr 0-0 Amp snsr 0-0 Scale Factor 1000 Hi-Speed Fan @ AC 2 HR2 AH2 DP2 Fan Control: AUTO Hr Flush Time 01:00 Flush Duration 10m Occupied Schedule USED Copy Master Occupied Schedule Now? No Sun1 00:00 02:00 Sun2 07:00 17:00 Mon1 00:00 02:00 Mon2 07:00 17:00 Tue1 00:00 02:00 Tue2 07:00 17:00 Wed1 00:00 02:00 Wed2 07:00 17:00 Thu1 00:00 02:00 Thu2 07:00 17:00 Fri1 00:00 02:00 Fri2 07:00 17:00 Sat1 00:00 02:00 Sat2 07:00 17:00 ** ** Required Access Levels = 1 & 2: HVAC UNITS SETPOINTS SCREEN 67
HVAC Units Setpoints Screen Configured for Variable Speed Fan Control VSpd Fan: DCH Range AC 54F 10 degrees HR/AH 70F 10 degrees DP 50F 05 degrees Min. Speed 050% DP & HT Speed 050% Fault Input 0 0 Switchovr Relay 0 0 Reset Relay 0 0 Fan Outpt 1 1 HVAC Units Setpoints Screen/Variable Speed Control Cutout HVAC Units Setpoints Screen Configured for Damper-Dew Point Control Damper: SC Constant 0.0 Damper Output 0-0 EAT Dewp snsr 0-0 HVAC Units Setpoints Screen/Damper-Dew Point Control Cutout HVAC Units Setpoints Screen Configured for Damper-Relative Humidity Control Damper: SC Constant 0.0 Damper Output 0-0 EAT RH snsr 0-0 EAT Temp snsr 0-0 HVAC Units Setpoints Screen/Damper-Relative Humidity Control Cutout 68
Variable Speed Fan/ Sequence of Operation The variable speed fan maintains a minimal speed, programmed by the user. The ERC uses the discharge temperature (DCH), compared against a programmed range of temperatures, to calculate the percentage at which the variable speed fan speeds up. For AC Mode: (DCH > Setpoint); Fan @ minimum speed (DCH = Setpoint); Fan @ minimum speed (DCH < Setpoint); but > (Setpoint Range); Fan Speed proportional to difference (DCH) < (Setpoint Range); Fan 100% For HR and AH Mode: (DCH < Setpoint); Fan @ minimum speed (DCH = Setpoint); Fan @ minimum speed (DCH > Setpoint) but > (Setpoint + Range); Fan speed proportional to difference (DCH) > (Setpoint + Range); Fan 100% For DP & Heat Mode: The variable speed fan runs at a fixed speed programmed in the Setpoints screen. For example: FAN SPEED ANALOG OUTPUT 0% 0VDC 50% 5VDC 100% 10VDC Seasons-4 SmartCoil/ Sequence of Operation Enhancements to the control software in Version 5.20 of the ERC-1000 and Version 7.20 of the EC-1000 accommodate bypass damper control in the Seasons-4 HVAC unit. ERC/EC-1000 BASIC SMARTCOIL CONTROL STRATEGY During dehumidification, the ERC/EC-1000 calculates an optimal leaving air setpoint based on the entering air relative humidity and temperature. The control modulates the damper, based on the coldest discharge air temperature to achieve the optimal leaving air setpoint. If any discharge sensor is below 35 F, the ERC ignores it in the true calculation. The damper opens for colder air and closes for warmer air. For SmartCoil Control: Optimal LAT is based on a series of internal calculations using relative humidity and temperature. (Coldest DCH Temperature > Optimal LAT) = Bypass Damper Opening (Coldest DCH Temperature < Optimal LAT) = Bypass Damper Closing The control also considers the mode of operation that the unit is in before moving the damper. The table below summarizes the damper positions. Table 15: SmartCoil Bypass Damper Positions DAMPER CLOSED WHEN UNIT IS IN: Cooling Mode Cooling with Dehumidification Mode DAMPER MODULATES DURING: Dehumidification Mode Dehumidification with Heat Reclaim Mode DAMPER OPEN WHEN UNIT IS IN: No Call Mode Heat Reclaim Mode Auxiliary Heat Mode Heat Reclaim with Auxiliary Heat Mode 69
HVAC Unit Names Screen The Unit Name screen allows you to enter descriptive names for each of the units configured for control by the ERC-1000. Both numeric and alphabetic data entry is permitted. A maximum of 24 characters is allowed. HVAC Names 01 MAIN HVAC 02 CUSTOMER SERV 03 PHARMACY 04 STOCKROOM #1 05 STOCKROOM #2 ** ** Required Access Level: 1 HVAC Unit Sensor Names Screen The Unit Sensor Name screen allows you to enter descriptive names for each sensor and input assigned to a configured HVAC unit. Both numeric and alphabetic data entry is permitted. Numeric or alphabetic data is acceptable, but is limited to 24 characters. 01-MAIN HVAC 1-1 SPC tmp ZONE 1 TEMP 1-2 SPC tmp ZONE 2 TEMP 1-3 SPC tmp ZONE 3 TEMP 1-4 OUT tmp OUTSIDE AIR TEMP 1-5 Dis tmp DISCHRG AIR TEMP 1-6 Ins DP DEWPOINT SENSOR 2-1 Airflow AIRFLOW SWITCH 2-2 Phase L PHASE LOSS INPUT ** ** Required Access Level: 1 70
HVAC Unit Configuration Screen The HVAC Unit Configuration screen allows you to select the configuration options that apply to your particular environmental control system. The most critical configuration field on this screen is the first one, which allows you to specify the number of HVAC units that are to be controlled by the ERC-1000. If the value of this data field is 0, you are unable to view the other screens listed on the HVAC Unit Menu (see the note box that follows this screen explanation). The next available configuration option, Heat Reclaim, determines the inclusion or exclusion of appropriate system data fields from unit Status and Setpoints screen. To select these or any other configuration options on this screen, scroll the data field value from NO to YES. Humidity Control can be set to either Unused, Inside RH or Inside DP. This selects the type of dew point or relative humidity control being used. The AH/DP Lockout field determines whether the ERC-1000 treats the auxiliary heat and dew point systems as mutually exclusive (i.e., prevent one from being activated when the other is already active). The AC/HT Delay field determines whether the ERC-1000 activates a five minute delay timer to prevent a heating system from being activated immediately after a cooling system has shut down or vice versa. The Airflow Switch field determines whether an airflow sensor is included among the sensors available for assignment to HVAC units. When the contacts open, the system shuts down. The Phase Loss Input field determines whether a phase loss monitor is to be used with an HVAC system. When the contacts close, the system is operational, when the contacts open, the system shuts down. The Airflow Control field contains four toggle options: standard, variable speed fan, damper-dew point, and damper-relative humidity. They are explained as follows: Standard: This mode provides two relay assignments for single or two-stage fan control. Variable Speed Fan: This mode allows entry of parameters for a variable speed to be set up. Discharge setpoints and a range are used to vary the speed of the fan. Setpoint assignments are available for: Minimum Speed Inverter Fault Input Switchover Relay Reset Relay Analog Output Damper-Dewpt: This mode provides setpoints to control the Seasons-4 SmartCoil bypass damper. The option should be selected if the damper is being controlled with an entering air dew point sensor. Damper-RelHum: This mode provides setpoints to control the Seasons-4 SmartCoil bypass damper. The option should be selected if the damper is being controlled with an entering air relative humidity sensor. The Night Setback Switch field allows for a digital input to be assigned. This unit puts the HVAC unit into night setback. When the digital input contacts close, the system uses the night setpoints. If the system is already in night setback, this input has no effect. The Night Setback Override Switch field allows a digital input to be assigned. This input puts the HVAC system in the Day mode. When the digital input contacts close, the system uses the day setpoints. If the system is already in the day mode, this input has no effect. 71
Monitor Fan Amps is used for an analog input that displays the fan current on the Status screen. The input type is 0-10V. This requires that a current sensor that outputs a 0-10VDC signal be installed on the power wiring to the fan. When this is used, the Scale Factor determines the range of sensor input. This value should be the current value of the current sensor when the output is at its maximum of 10VDC. Fan EON/EOFF, selects the fan relay operation. When EON is selected, the fan is on when the relay is energized. If EOFF is selected, the fan is on when the relay is off. This is used to determine the fail safe mode for the fan. Normal operation is typically set to EOFF. The Economizer is used for a damper that allows outside air into the plenum when certain conditions are met. Selections are available for Econo RH or Econo DP. The Setpoints screen has fields for outdooor air and DP/RH setpoints. A relay assignment is also available for the economizer relay. The outdoor air and the DP/RH must both be below the setpoints for the economizer relay to energize. The Master Occupied Schedule and Master Holiday Schedule both provide you with the means to simplify the task of programming schedules for the individual HVAC units (see Schedule Programming for the ERC-1000). However, the Master Holiday Schedule is only available if one or more holidays have been defined (see Holiday Information screen). NOTE When the Number of HVACs field value is 0, the following is displayed for all HVAC menu selections, other than the Configuration screen: No HVAC Units configured 72
Configuration Number of HVACs (Max 8)..... 8 Heat Reclaim..... YES Humidity Control..... Inside DP AH/DP Lockout..... AC/HT Delay..... Airflow Switch..... Phase loss input..... Airflow Control..... Night Setback Switch..... Night Setback Override Switch..... Monitor Fan AMPS..... Fan EON/EOFF..... Economizer..... YES YES YES YES STANDARD YES YES YES EON ECONO RH Master Occupied Schedule: Sun1 00:00 02:00 Sun2 07:00 17:00 Mon1 07:00 22:00 Mon2 00:00 00:00 Tue1 07:00 22:00 Tue2 00:00 00:00 Wed1 07:00 22:00 Wed2 00:00 00:00 Thu1 07:00 22:00 Thu2 00:00 00:00 Fri1 07:00 00:00 Fri2 00:00 00:00 Sat1 00:00 17:00 Sat2 23:00 00:00 Master Holiday Schedule: New Years 01-01-00 01 00:00 07:00 02 00:00 00:00 ** ** HVAC Unit Configuration Screen Required Access Level: 2 73
Rack Menu The Rack Menu is selected from the ERC- 1000 Main Menu. It is the Table of Contents to the ERC-1000 s compressor rack and Aux Rack configuration and control functions. If you intend to make any programming changes to screens on this menu, keep in mind that different levels of access are required by different programmable data fields. Rack Menu 1 Rack Control 2 Aux Rack Control Required Access Level: None Rack Control Menu The Rack Control Menu is selected from the ERC-1000 Rack Menu. It is the Table of Contents of the ERC-1000 s compressor rack configuration and control functions. If you intend to make any programming changes to screens on this menu, keep in mind that different access levels are required by different programmable data fields. Rack Control 1 Status 4 Rack Names 2 Setpoints 5 Sensor Names 3 Overview 6 Configuration Required Access Level: None 74
Rack Status Screen The Rack Status screen displays all relevant data concerning the status of each configured compressor rack. The screen title line contains the rack number and the user-defined rack name. The second line of the Rack Status screen consists of the rack compressor speed, suction, and head status fields. The status fields contain either: a number (indicating the load is on) a - (indicating the load is off) a blank (no assignment) a lowercase o (indicating that an override condition is in effect) or a v indicating a run verify failure on the indicated compressor or condenser fan. NOTE A reverse video O appears to the right of these fields to indicate an oil failure alarm condition. If variable speed condenser fan is selected, the next line indicates the condenser fan speed. If more than six condenser fans are in use, the Bank A fans status is displayed on the line above it. The next line consists of the actual v. required capacity (shown as percentages) for the suction and head sides of the rack. The next two data lines consist of the actual readings for suction and head pressures and their respective cut-in and cut-out setpoints. A reverse video H or a reverse video L to the right of the two pressure fields indicates a high or low pressure condition, respectively. If the condenser fans are controlled by temperature differential, the cut-in and cut-out pressure settings are replaced by the temperature differential settings. A reverse video A or a reverse video E to the right of either one of the two setpoint fields shows auxiliary or floating setpoints, respectively. A reverse video O to the right of the suction and pressure reading shows an alarm override. This override occurs after any power failure and lasts for a three minute period. If there is a head override condition present, shutting down the compressors, an HV is displayed next to the compressor status (see the Rack Setpoints section for more details). The calculated condensing temperature is displayed. This is calculated using the pressure to temperature tables for the type of refrigerant selected. If temperature differential control of the condenser fans is configured, the next line displays the temperature difference between the ambient and calculated condensing temperature. The outside temperature is displayed next. If Desuperheater control is configured, the next line is the status of the desuperheater relays and the average (or max) temperature of all the Desuperheater manifold temperature sensors. If individual compressor oil monitoring is configured, two lines are displayed, indicating the compressor number with the oil pressure below it. Each compressor that has oil pressure sensors assigned has the values displayed here. Each compressor requires a sump pressure sensor and an oil pressure sensor. The ERC-1000 takes the difference of these two and displays them as the oil pressure. A minimal oil pressure setpoint is used for alarming purposes. When the oil pressure goes below the minimal oil pressure, the ERC-1000 records an alarm. The next line shows the actual rack kw, if used. Phase loss is indicated by reverse video P beside the power kw line. If neither phase loss or rack kw is used on any rack, this line is not displayed. If an analog liquid level input is used, the actual liquid level percent is displayed next. A reverse video L is displayed if the liquid level is lower than the alarm setpoint alarm. 75
When the Variable Speed option is selected on the Rack Configuration screen, an additional section labeled Motor Data is displayed with the following data fields: 1. Compressor speed 2. Compressor motor frequency 3. Percentage capacity 4. Compressor current During normal operation, the variable speed compressor ramps between the Max RPM setpoint and the Min RPM setpoint. At the bottom of the screen, all analog and digital sensors assigned are displayed along with their descriptions and actual readings. 01 RACK A SUCT HEAD Units on 1750rpm 1_34 123_ Condsr Fans 1750rpm 1234 Capacity ACT-REQ 060%-060% 050%-050% Actual reading 010p 175p Cut in Cut out 012p-009p 200p-165p Calc Condnsng Temp n/a n/a Temperature Diff 0.0F Outside Temperature 72F Desuper Units On 1- MaxTemp:82F Compr 1 2 3 4 5 6 7 8 Oil 0 0 0 0 0 0 0 0 Power 0000kw Anlg Liquid Level 038% Compressor Motor data: Speed 1750rpm Frequency 000hz Capacity 100% Current 000a Sensors: AI 1-1 Ambient Temp Sensor 27.0F AI 1-2 Drop Leg Temp Sensor 27.0F DI 1-1 Rack A Aux Enable Off DI 1-2 Rack A Phase Loss Off ** ** Rack Status Screen Required Access Level: None 76
Rack Setpoints Screen The Rack Setpoints screen provides access to all programmable parameters that affect the control of each configured compressor rack. The screen title line contains the rack number and user-defined rack name. Many areas may not be displayed on all units, depending on the rack configuration setup. Pressures are in PSI; times are in either minutes ( m ) or seconds ( s ). In general, these data fields are self-explanatory. The Cut in and Cut out fields are for setting the general operating pressures of the rack. The Cut in must be higher than or equal to the Cut out value. Aux cut in and Aux cut out are the setpoints to be used when the auxiliary enable digital input contacts are closed. The High Alarm and Low Alarm setpoints are values that, when exceeded, cause an alarm in the RC-2000. These alarms honor the alarm time delay. The Shutdown field is provided to allow shutdown of all compressors on the rack if the suction pressure falls below this value. Normal operation resumes when the pressure rises back above the shutdown value. The compressors must honor the min off time before restarting. The minimum value for proper operation is 001. This feature can be disabled by setting the shutdown value to 000. The Head Override setpoint is used to set a high pressure point where, if exceeded, the compressors begin an orderly shutdown. As this setpoint is exceeded, the suction % required is decreased, allowing compressors to shut down. The farther above this setpoint, the faster the compressors shut down. When the head pressure drops below the head override setpoint, the compressors are allowed to return to normal operation. Alarm Delay is the time period that must pass, after an alarm condition has been met, before an alarm is logged. Liquid Level Alrm is the value (in percentage) that, when the analog liquid level sensor falls below, an alarm is generated. This honors the alarm time delay period. HR override level is the value (in percentage) that the liquid level must be below, for the specified delay time period, for the HR override relay to open. HR override diff is the level (in percentage) that the liquid level must exceed (HR override level + HR override diff) before the HR override relay is returned to normal operation. HR override delay is the time period that the liquid level must be below the HR override level before HR override relay action occurs. The Min on and Min off times are intended to supply time delays for short cycle protection of the compressors and condenser fans. The default times are thirty seconds. The most important parameter for correct rack operation is the Control gain. This regulates the response of the ERC 1000 to changes in pressures. Typical starting values are 10 for suction and 100 for head. The higher the gain, the faster the ERC-1000 responds and calculates capacities. These values can be tailored to suit the particular compressor installation for optimal performance. There must be a value for control gain in order for the system to operate. The minimum value is 000 and the maximum is 255. NOTE If TD head pressure control is being used, the recommended control gain on the head side is 25. This is used when the temperature is in control and, should the need arise to control with the pressure setpoints, this control gain is four times higher. The Derivative Gain field allows the RC- 2000 to sense the direction and magnitude of pressure changes. This function can help with sharp increases and declines of pressure. It can be thought of as an anticipator. Typical values for this field should start at four times the control gain. The higher the derivative gain, the faster the RC- 2000 responds and calculates additional capacities. These values can be tailored to suit the 77
particular compressor installation for optimal performance. This feature is optionally used. If it is not desired for derivative gain, set these fields to 000. The minimal value is 000 and the maximal value is 255. The method of sequencing compressor and condenser fans is set by either Seq (sequential) or Alt (alternating). In seq mode, the stages are brought on from left to right and brought off from right to left. If alt mode is selected, the RC-2000 alternates stages based on run times and capacity required. The Pres Sensor assignments are made according to which analog input the pressure sensors are connected to on the pressure module. The suction pressure is used with a 100 psi transducer, and the head pressure is used with a 500 psi transducer. The Alarm Relay is the relay assignment which is activated upon an alarm condition logged by the ERC-1000 (use N/C contacts). If normal (no alarm), the relay is energized. When an alarm occurs, the relay is de-energized. The Ambient Sensor is the analog input temperature sensor that is used for monitoring the outdoor ambient temperature. It is used only if temperature differential for head pressure control is configured in the Rack Setpoints screen. Either high or low temperature sensors can be used. The Condensing pres snsr is the analog input pressure sensor that is used to monitor the condenser manifold. It is used only if Temperature Differential for head pressure control is configured in the Rack Setpoints screen. The condensing temperature is calculated using the pressure to temperature chart for the refrigerant used. This value is used for the temp. differential calculation, with the ambient sensor, when using TD head pressure control. diff cut-out setpoint, the condenser fans begin to stage off. The Min ambient temp is the lowest value used in calculating the temp differential. This value overrides the actual outdoor ambient temperature if the outdoor temperature goes below this value. The Split cut in temp and Split cut out temp are parameters to initiate the split condenser action. Along with the cut-in and cut-out setpoints, the Split override pres setpoint deactivates the split condenser action, should the head pressure rise above this setpoint. Once the split condenser action has turned off, the Split min off time parameter keeps the split action from turning back on for the programmed time period. The split min off time eliminates short cycling of the fans on a cloudy day. The Analog Liq. Lev. Snsr is the analog input that reads the amount of refrigerant liquid level in the receiver. One type of sensor used is a 0 to 10K ohm pot, with 0=0% and 10k = 100%. Currently, the ERC-1000 can accept signals from the Rochester and Hansen liquid level gauges. Danfoss/ECI can supply a magnetic gauge that can be used with standard Rochester gauge M62XX series of floats. Liquid level input is the digital input used for monitoring a digital liquid level sensor. If the contacts are closed, an alarm is generated. This honors the alarm time delay. HR Override Relay is the relay that is deenergized when the liquid level in the receiver falls below the HR Override Level. The HR Override Delay is active before the relay is de-energized. When the liquid level returns above the HR Override Level plus the HR Override Diff, the relay is energized. Temp Differential cut in is the value that reflects the maximal difference of the condensing temperature minus the ambient temperature that is desired. If the difference in temperature is greater than this setpoint, the condenser fans begin to calculate percentage required and stage on. When the temperature difference is less than the Temp 78
NOTE The proper relay hookup for this relay is as follows: Use NO contacts for a valve which is energized for heat reclaim. Use NC contacts for a valve that is de-energized for heat reclaim. This relay should be hooked in series with the device operating the heat reclaim (i.e., the ERC- 1000 relay output). Aux Enable Input is the digital input that, when closed, activates the Aux cut in and Aux cut out setpoints. The ERC-1000 immediately reacts to the new setpoints. When this input is active, an inverse A appears next to the setpoints field on the Rack Status screen. The Phase loss input field is the digital input that, when open, shuts down all compressors. The action is immediate, but the alarm logs after the alarm time delay. The Oil failure input is the digital input used to monitor rack oil pressure. This is a monitor only input; no action occurs on rack components. An alarm is logged upon opening the contacts. All oil fail contacts should be connected in series, such that any failure opens the digital input. When the contacts are closed, the alarm condition clears. This honors the alarm time delay. The compressor Relay assignments are next. If Seq operation is selected, they should be entered in the order they are expected to operate in. When using a variable speed compressor, sometimes the first assignment is skipped, so that it is easier to interpret the Status screen. However, if any other places are skipped, the compressor operation stops at the last valid entry. The Capacity values should be proportional for all the compressors used. Values of HP, BTU, or percentage can be used. For example: assume three compressors at 7.5hp are used, since 7.5 cannot be entered as capacity, use 75 for all three. If a variable speed compressor was used also at a capacity of 10hp, use 100 as its capacity for compatibility with the fixed compressor capacities. Generally, higher numbers for variable speed capacities (multiply actual capacity by 10) provide finer control of the variable speed compressor. The Unloaders value refers to how many operational stages, in addition to the primary capacity, are possible for a compressor. In the chart below, the Total # of Unloaders value indicates this number. Each stage is treated as a separate compressor, and, hence, has its own relay assignment. In the chart below, compressor 1 (10hp total) has four unloaders (each has 1/5 total capacity) and relay assignments 1-1 through 1-5. Compressors 2 (15hp) and 3 (15hp) have no unloaders and are assigned relays 1-6 and 1-7, respectively. The ERC-1000 does not allow a programmed unloader to come on without its master compressor on first. Table 16: Compressor Unloader Assignment Example Compressor 1 1 1 1 1 2 3 4 Unloader n/a 1 2 3 4 n/a n/a n/a Relay 1-1 1-2 1-3 1-4 1-5 1-6 1-7 0-0 Capacity 020 020 020 020 020 150 150 000 Total # of Unloaders 4 0 0 0 0 0 0 0 79
The Oil pres inputs are for analog input from pressure transducers that monitor the compressor oil pressure. The range for these are 0 to 100 lbs, using the SA-100 transducers. The Sump pres inputs are for analog input from pressure transducers that monitor the compressor sump oil pressure. The range for these are 0 to 100 lbs, using the SA-100 transducers. If no sump transducer is assigned, the oil pressure is calculated using the suction pressure transducer. The Min diff oil pres is the value used to alarm on a low oil condition. The RC-2000 takes the difference of the oil pressure and the Sump pressure or suction pressure, see above. If that value is less than the Min diff oil pres, an alarm is generated. This honors the alarm delay period. The Run Inpt setpoints are used for digital proof of run contacts for each compressor. The ERC-1000 expects closed contacts when the compressor is running and open contacts when the compressor is off. An alarm is logged if the proof contacts do not agree with the compressor run condition. When the Variable speed option is selected on the Rack Configuration screen, additional data fields are displayed under the heading Variable speed compressor. Not all of these parameters must be used, depending on the complexity of the inverter installation. Refer to the Installation section of this manual for connection of these features. When using the advanced features of the inverter (i.e., fault feedback, reset, switchover, etc.), the operation of the system is more complicated. If the inverter sends a fault signal to the ERC-1000, the ERC-1000 attempts to reset the inverter three times. If unsuccessful, the ERC- 1000 enables the switchover relay, and the inverter runs in bypass mode. When the fault condition clears, the inverter control returns to normal. VARIABLE SPEED SETPOINTS Max RPM is the maximal value of RPM for the compressor under V.S. control. This corresponds to the maximal output of the analog out card (10VDC). The maximal value allowed is 5000RPM. Min RPM is the lowest value for the V.S. to operate. The compressor does not operate below this RPM. The V.S. compressor shuts down only when the required capacity is at 0%. The Capacity uses the same capacity setup as for fixed compressors. The higher the capacity, the more defined increments for V.S. output. For example: Cap = 10, max RPM = 1750 V.S. steps 175RPM Cap = 100, max RPM = 1750 V.S. steps 17.5RPM The Analog output is the output assignment for the analog output card that is connected to the V.S. inverter. The Freq sensor is used for an external monitor of the operating frequency of the inverter. The signal should be 0-10VDC. The sensor output of 0VDC equals 0Hz and 10VDC equals 60Hz. The Sump pres snsr is used to monitor the compressor sump pressure. The range is 0 to 100 lbs, using the SA-100 transducer. The Control Relay is used to control the main power contactor for the inverter. The control relay is energized whenever the analog output is active (use N/C contacts). The Reset relay is used to send a reset signal to the inverter. If a fault is detected from the inverter, the reset relay pulses three times and attempts to get the inverter running properly. If, after three resets, the inverter is still in a fault condition, the inverter goes into switchover mode. 80
The Switchover relay is used to bypass the inverter control and run the inverter as an on/off compressor. If the inverter has a fault and does not recover, the switchover relay energizes, and the external bypass relay controls the compressor. This relay can be connected as either N/O or N/C as configured in the rack configuration. The Fault input accepts a digital fault signal from the inverter. If the contacts are closed, the ERC-1000 attempts to reset the inverter, using the reset relay. Run input is a digital input used for proof of run verification of the V.S. inverter. If the contacts are closed, the compressor is assumed to be running. If the run input does not match the actual run condition of the compressor, an alarm is generated. The Current sensor is used for an external monitor of the operating current of the V.S. compressor. The signal should be 0-10VDC. The sensor output of 0VDC equals 0 amps and 10VDC equals 100 amps. Condenser Fan Relays are assigned next, along with their respective proof of run digital assignment (if used). If the split condenser fan operation is selected from the Rack Configuration screen, the following setpoints are added to the Rack Setpoints screen: 8 extra relays for the split bank, along with two relays for split bank control. Upon a split condition, both split relays are energized, and the split bank is turned off. The fields for Variable Speed Fan have the same functions as those for the variable speed compressor. Although not as complicated, the parameters required for operation are available. The Power Sensor is a 0-10V analog input from a kw transducer. Max Power is the equivalent to a scale factor for the transducer used. For Danfoss/ECI watt transducers, the max. power is determined as follows: Table 17: Danfoss/ECI Watt Transducer Power Rating Via Model Number Transducer Rating Max. Power CC/20106400 CC/20106401 208V, 3 phase, 3 wire 480V, 3 phase, 3 wire.36 x (ct size).83 x (ct size) Note: The CC/20106401 transducer requires an external 120VAC power source. The Associated low temperature rack interlocks the rack to another for lock out purposes. This field is intended for two stage systems. If the med. Temp. rack compressors are not running, the low temp rack is locked out (all compressors off). This number should be set on the medium temp. rack. On the associated low temp rack, this field displays N/A. NOTE If split condenser control is selected, the twelve fan option is automatically selected. For proper sequencing using the split fan option, relays must be assigned in the main bank as well as the split bank, such that the fans alternate between the two. Run Inpts A and Run Inpts B are used for run verification for the condenser fans. These are digital inputs that should correspond with the condenser fan assignments. 81
01 RACK A SUCT HEAD Cut in 012p 200p Cut out 009p 165p Aux cut in 020p 250p Aux cut out 010p 200p High alarm 030p 350p Low alarm 005p 095p Shutdown Head override 375p Alarm delay 15m 30m Liquid Level Alrm 020% HR Override Level 010% HR Override Diff 002% HR Override Delay 030s Min on time 000s Min off time 030s Control gain 020 100 Derivative Gain 040 150 Unit combination ALT SEQ Pres sensor 1-1 1-2 Alarm relay 2-7 2-7 Ambient Sensor 0-0 Condensing pres snsr 0-0 Temp Diff Cut-In 00f Temp Diff Cut-Out 00f Min ambient temp 00f Split cut-in temp 00f Split cut-out temp 00f Split override pres 00p Split min off time 010m Anlg Liq. Lev snsr 0-0 HR Override Relay 0-0 Aux enable input 0-0 Phase loss input 0-0 Oil failure input 0-0 Compr 1 2 3 4 5 6 7 8 Relay 0-0 1-2 1-3 1-4 1-5 1-6 0-0 0-0 Capacity 000 100 100 100 050 050 000 000 Unloaders 0 0 0 0 1 0 0 0 Rack Setpoints Screen Required Access Level: 1 & 2 82
Rack Setpoints Screen (continued) Oil Pres 0-0 0-0 0-0 0-0 0-0 0-0 0-0 0-0 Sump Pres 0-0 0-0 0-0 0-0 0-0 0-0 0-0 0-0 Min diff Oil pres 020p Run inpt 0-0 2-2 2-3 2-4 2-5 0-0 0-0 0-0 Variable Speed Compressor: Max rpm 1750 Min rpm 0875 Capacity 100 Analog output 1-1 Freq Sensor 0-0 Sump pres snsr 0-0 Control relay 1-1 Reset relay 2-5 Switchovr relay 3-2 Fault input 1-2 Run input 2-1 Current snsr 0-0 Fan Relays 1 2 3 4 5 6 Main bank 0-0 0-0 0-0 0-0 0-0 0-0 Fan Relays 1 2 3 4 5 6 Split bank 0-0 0-0 0-0 0-0 0-0 0-0 Split control relays 0-0 0-0 Run inpt A 0-0 0-0 0-0 0-0 0-0 0-0 Run inpt B 0-0 0-0 0-0 0-0 0-0 0-0 Variable Speed Fan: Max rpm 1750 Min rpm 0300 Analog output 0-0 Switchover rly 0-0 Control relay 0-0 Fault input 1-2 Reset relay 0-0 Power snsr 0-0 Max power 1000 Associated low temperature rack 00 ** ** Required Access Level: 1 & 2 83
Rack Overview Screen The Rack Overview screen shows a condensed status of the racks. The data includes the rack number, the suction pressure, the variable speed compressor RPM, compressor stages on, head pressure, condenser fan stages and variable condenser fan RPM. High and low alarms are indicated on this screen. Rack Sensor Name Screen The Rack Sensor Name screen enables you to enter a descriptive name for each sensor assigned to a configured compressor rack. The name can be a maximum of 24 alphanumeric characters. The ability to describe a sensor can only be done following the assignment of the sensor in the Rack Setpoints screen. Overview SUCT HEAD 01 030p 123--- 1750rpm 248p 12--- 1000rpm 01-RACK A 1-1 Suct Pr RACK A SUCTION PRESSURE 1-2 Head Pr RACK A HEAD PRESSURE 1-3 Liq Lvl RACK A LIQUID LEVEL 02 010p 12 0450rpm 140p 12345 0750rpm ** ** Required Access Level: None Rack Name Screen The Rack Name screen enables you to enter descriptive names, up to sixteen characters long, for each of the configured refrigeration racks. Both numeric and alphanumeric data entries are permitted. Descriptions can only be entered after the racks have been configured in the Rack Configuration screen. 2-1 Ambient OUTSIDE AIR TEMP 2-2 Drop Lg Condenser DROP LEG TEMP 2-1 Phase PHASE LOSS MONITOR 2-2 Oil Inp OIL FAIL INPUT ** ** Required Access Level: 1 Rack Names 01 RACK A LOW TEMP 02 RACK B MED TEMP 03 A/C COMPRESSOR Required Access Level: One 84
Rack Configuration Screen The Rack Configuration screen enables you to select the compressor rack configuration options that apply to your particular rack control system. The most critical configuration field on this screen is the first one, which enables you to specify the number of racks that are to be controlled by the ERC-1000. IMPORTANT As long as the value of this data field is 00, you are unable to view the other screens listed on the Rack Menu. The next configuration option, Variable speed, provides the capability to control one variable speed compressor and/or one variable speed condenser fan for each configured refrigeration rack. When this option is selected (either COMPR, COND or COMPR/COND), additional data fields appear on the status and Setpoints screens (see the Rack Status and Rack Setpoint screens for details). The Run verification option offers the capability to sense the actual state of individual compressors and condenser fans ( ON or OFF ), via digital inputs (i.e., when the compressor turns on, the digital input closes to indicate a run condition). When this option is selected, eight Run input fields (digital input assignments) are added to the Rack Setpoints screen for compressors, and six to twelve are added for condenser fans. An alarm occurs when the state of any of these inputs does not match the desired output state of the associated compressor. In addition, a v appears in the Rack Status screen in place of the compressor number. The Phase loss input option offers the capability to sense an AC power line failure. A phase protect relay sends a digital input signal and shuts down all configured rack compressors immediately. Selecting this option adds the Phase loss input field to the Rack Setpoints screen. NOTE The open state signals an alarm condition for this input. During normal operation, the contacts need to be closed. The Refrigerant liquid level option offers the capability to sense the liquid refrigerant level via a digital or analog input and shut down the rack system when the level falls below some minimum. Selection of this option adds the Liquid level input field to the Rack Setpoints screen. For Digital, note that the closed state signals an alarm condition for this input. During normal operation, the contacts need to be open. Using Analog allows the use of a liquid level float to be incorporated into the ERC-1000. The scaling for this sensor is 0-100%. If the percentage of liquid falls below liquid level alarm setpoint, an alarm is generated, and the rack system is shut down. The liquid level input may be connected to a 10k ohm potentiometer or a solid state output style float available on many OEM racks (see Figures 15, 18, and 19). When using refrigerant liquid level monitoring, a Heat Reclaim override setpoint and a Heat Reclaim override relay are available. This allows the ERC-1000 to bypass heat reclaim if the receiver level falls below a given point. The Auxiliary setpoints option offers the capability to control the rack suction and head pressures according to an additional set of setpoints when a special digital input is ON (closed). Aux cut in and Aux cut out setpoints fields and an Aux enable input field are added to the Rack Setpoints screen when this option is selected. 85
The Oil failure input option offers the capability to sense an oil failure (digital input is open) and generate an alarm. Selection of this option adds the Oil failure input field to the Rack Setpoints screen. NOTE During Run Verification, Phase Loss, Liquid Level, and Oil Failure, the external alarm relay is activated, and date and time are stored in the Alarm Log by the unit. The Compr relay energized on option offers the capability to have compressor output relays energized either on or off. If no is selected, the compressors are energized off. If Comp is selected, the compressor relays are energized on. If Cond is selected, the condenser relays are energized on. Desuperheater control allows access to the Desuperheater setpoints menu. This allows control of up to two relays based on manifold temperature. A rise in temperature brings on the loads. Up to six manifold temperatures can be assigned, and control is based on the average temperature or the highest temperature (user-selectable). The Head Pressure Override allows for high head pressure setpoints, which, if exceeded, start an orderly shutdown of compressors. Polarity of Switchover relay assigns the variable speed switchover relay to either energized on (EON) or energized off (EOFF). Selecting the Split condenser option to Yes adds setpoints to operate a split condenser strategy. When this option is selected, the number of cond fans automatically defaults to 12. The Six or twelve condenser fans option allows the user to control up to twelve condenser fans, if desired. The Monitor comprsr oil pres feature allows monitoring of oil pressure on non-variable speed compressors. Setpoints are added for a sump and oil transducer per compressor. TD head pressure control is provided to allow control of condenser fans based on the temperature difference of a drop leg temperature and the ambient temperature. These setpoints are on the Rack Setpoints screen. It is intended that cut-in maximal and cut-out minimal pressures be assigned as backup parameters. If the head pressure exceeds the pressure setpoints, the pressure setpoints override the temperature function and control the condenser fans. Temperature control returns when the head pressure is between the head pressure cut-in and cut-out setpoints. The Two stage rack control selection allows you to link a low temp rack to a med temp rack for lockout purposes. If the med temp rack is not running, the low temp rack is locked out (i.e., all compressors off). The low temp rack returns to normal when at least one compressor is called for on the medium temp rack. 86
Configuration Number of rack (Max: 4)...4 Variable Speed...COMPR/COND Run Verification...YES Aux setpoints... YES Phase loss input... YES Refrigerant liquid level... ANALOG Oil failure input... YES Compr relay energized on... BOTH Desuperheater control... YES TD head pressure control... YES Two stage rack control... YES Head Pressure Override... YES Polarity of switchover relay... EOFF Split condenser... YES Six or twelve condenser fans... 12 Monitor comprsr oil pres... YES ** ** Rack Configuration Screen Required Access Level: 2 87
Aux Rack Control Menu The AUX Rack Control Menu is selected from the Rack Menu. It allows access to the monitor points and Desuperheater options. AUX Rack Control 1 Monitoring Points 2 Monitor Names 3 Desuper Setpoints Rack Monitoring Points Setpoints Screen The monitor setpoints allow for a variety of inputs and outputs to be monitored in a convenient group. There is no control action from these setpoints. The inputs and outputs can be either independent assignments or duplicate assignments from any other area of the ERC-1000. Required Access Level: None 01-Rack A Type Assignments Temp snsr: 1-1 0-0 0-0 0-0 Low Press: 3-1 3-2 0-0 0-0 High Press: 3-3 3-4 0-0 0-0 Other snsr: 7-1 7-2 0-0 0-0 Dig Inputs: 2-1 2-2 0-0 0-0 Relay Outp: 4-1 4-2 4-3 4-4 Analog Out: 0-0 ** ** Rack Monitoring Setpoints Screen Required Access Level: 2 88
Rack Monitor Names Screen The Rack Monitor Names screen enables you to enter descriptive names for each sensor assigned to a configured monitor group. The name can be a maximum of 24 alphanumeric characters. The ability to describe a sensor can only be done following the assignment of the sensor in the Monitor Setpoints screen. 01 Racks A 3-1 Sensor RACK A SUCTION PRESSURE 3 2 Sensor RACK A HEAD PRESSURE 4 1 Sensor RACK A LIQUID LEVEL 4-2 Sensor OUTDOOR AMBIENT TEMPERATURE 4-3 Sensor CONDENSER DROP LEG TEMP 2-7 Input RACK A PHASE LOSS MONITOR 2-8 Input RACK A OIL FAIL INPUT ** ** Rack Desuperheater Setpoints Screen The Desuperheater control allows control of up to two relays based on manifold temperature. A rise in temperature brings on the loads. Up to six manifold temperature sensors can be assigned. Control is based on the average temperature or the highest temperature (user-selectable). Required Access Level: 1 01-RACK A Unit: #1 #2 Cut-in setpoints..... 70f 90f Dead band (cut-out)....05f 05f Desuperheater relays... 0-0 0-0 Temperature control on.. Highest Temp Manifold Sensors 0-0 0-0 0-0 0-0 0-0 0-0 ** ** Required Access Level: 2 89
Aux Outputs Menu The Aux Outputs Menu is selected from the ERC-1000 Main Menu. This menu provides selection for the Logic Statements, Anti-Sweat, Demand Systems, Satellite Units, and TOD Outputs. Aux Outputs 1 Logic Statements 4 Satellites 2 Anti-Sweats 5 TOD Outputs 3 Demand System Required Access Level: None Logic Statements The Logic Statement Menu is selected from the Aux Output Menu. It is the Table of Contents to the ERC-1000 s logic control statements, output configuration, and control functions. If you intend to make any programming changes to screens on this menu, keep in mind that different levels of access code are required by the programmable data fields. Logic Statements 1 Status 4 Logic Stmt Names 2 Setpoints 5 Sensor Names 3 Clear Latch 6 - Configuration Required Access Level: None 90
Logic Statements Status Screen The Logic Statements Status screen title line consists of the logic statement number and userdefined description. This screen consists of status fields for all associated inputs and outputs assigned to the logic statement. The screen includes true/ false conditions, indicating whether the conditions of the statement are true or false. The STATUS line displays the overall status of the ENTIRE logic statement, either true or false, depending on the condition of all logic lines contained in the statement. The true/false conditions further down in the Status screen only indicate the condition of the specific logic line associated next to the true false condition. 01 BOL HOT WATER HEATER STATUS: FALSE OUTPUTS 1-1 OFF (AIGR1 0 F (>) AIGR2 0 F > =FALSE (OR ) (Digital Inp Group <or > )= FALSE (OR ) (Refer Input Group <or > )= FALSE # Group Val. Eval. Name 1-1 AI-GR1-30F (min) SENSOR 1-1 Required Access Level: None 91
Logic Statements Setpoints Screen The Logic Statements Setpoints screen provides access to all programmable parameters that affect the output control assigned to the logic statement. The title line of this screen consists of the logic statement number and the user-defined description. Logic statements are used to design a custom control system based on a variety of input and output configurations. The logic statement overrides the normal operating mode of an output if a logic statement output is assigned to an output being used elsewhere. The fundamental logic statement, IF... THEN, is the basis of these control statements. For example: If temperature sensor 1-1 is greater than (>) a setpoint of 50, Then turn output relays 1-1, 1-2, and 1-3 ON. This statement can also be written as follows: If 1-1> 50, THEN 1-1 + 1-2 + 1-3 ON IMPORTANT The example above shows the way the ERC- 1000 interprets and controls logic statements. A true result is achieved when all conditions for a logic line or statement are met, otherwise a false result is returned (see the example below). For example, This logic statement programmed into the ERC- 1000: If 1-1 > 50. If the actual temperature from sensor 1-1 was 40, the statement would be false. Had the actual temperature been 65, the statement would be true. Multiple analog inputs can have the following interaction on the logic control as follows: AVG MIN MAX STP For example: The following logic statement: If temperature sensors 1-1, 1-2, 1-3 averaged together is a quantity greater than (>) the setpoint 50, THEN output relay 1-1 goes off. Can be rewritten as follows: If 1-1 1-2 1-3 (AVG) > 50 THEN 1-1 off In this statement, the control would compare the setpoint of 50 to the AVERAGE of the three sensors 1-1, 1-2, 1-3. If that average was greater than the 50 setpoint, then the output 1-1 would go off. Digital inputs can be used as control points for logic statements. For example: Take the average of all sensors assigned. Use the minimum value of any individual sensor assigned. Use the maximum value of any individual sensor assigned. User-defined setpoint value. No sensor used. IF digital input 1-1 is on, THEN, turn outputs 1-1 and 1-2 on, can be written in this manner: IF 1-1 ON THEN 1-1 + 1-2 OFF. 92
Multiple digital inputs can be combined in a single statement as follows: AND: All digital inputs assigned must be true at the same time for the entire statement to be true. OR: One or more digital inputs assigned must be true at the same time for the entire statement to be true. As long as any one digital input is true, the statement is true. XOR: Only one input at a time can be true for the entire statement to be true. If more than one input is true, the statement is false. The condition of how the digital input reacts is set to either on or off. This depends on what type of signal is being used. For example, if assigned to ON, the condition is true if the digital input is CLOSED. If assigned off, it is true when the digital input is OPEN. Analog inputs and digital inputs can be combined in a statement for a mixed logic statement. The individual analog input and digital inputs are set up the same, but they can be combined as follows: AND: The analog input statement AND the digital input statement must both be true for the entire logic statement to be true. OR: Either the analog input statement OR the digital input statement OR both can be true for the entire logic statement to be true. XOR: Either the analog input statement OR the digital input statement must be true but NOT BOTH for the entire logic statement to be true. The logic is similar to that of digital inputs. An on/off status can be set, indicating which way the reference relay is expected to be in for a true condition to exist. A choice is available to allow the logic statement to be true on any CHANGE for this relay state. For example: either on-to-off or off-to-on. This is abbreviated as CHG. An example might be: IF analog input temperature 1-2 is less than (<) the setpoint of 100, AND ref out (TOD load) 1-1 is ON, THEN output 1-1 comes on. Let analog input 1-2 be water temperature. Let ref out be TOD load store lights. Let output relay 1-1 be the water heater load. This might be saying: IF the water heater temperature (1-2) is less than 100, AND TOD load (1-1), occupied time is on (occupied), THEN the water heater load (1-1) goes off. Also, IF the reference relay is off, indicating an unoccupied time, THEN the water load (1-1) goes off. As illustrated, the logic statements can be simple or complicated depending on the conditions required to react on. Care must be taken that each statement is thought out completely to ensure correct operation. Outputs from the logic statements can be set on/off, and the energized state can be set on/off. The only restriction is when using an output assigned elsewhere, the energized on/energized off state must be the same. One more element can be entered into the logic statement: Reference outputs. This allows the statement to react based on the condition of a relay status that is assigned elsewhere in the unit. For example: HVAC AC relay or a TOD output relay. This is labeled as REF OUT on the Setpoints screen. 93
The way the outputs react can be programmed for several conditions, depending on the needs of the user and equipment being controlled: NRM (Normal): Load responds to chosen state (on/off). CHG (Change): Changes the output on-to-off or off-to-on, depending on the last state of the relay, when a true condition occurs. SHD (Shutdown): Use this in conjunction with other portions of the program (i.e., the relay is assigned in the logic statement and a compressor). The logic statement is the Slave and only takes control (shutdown) when it is a true statement. When the logic statement becomes False, the other assignment (i.e., a compressor) takes control, and looking at the required status, turns the load on or off accordingly. MTY (Momentary): Momentarily energizes the output for approximately 2-3 seconds when a true condition occurs for the logic statement. LCH (Latch): Load responds to chosen state (on/off) and must be unlatched via program or digital input closure. The last setpoint area includes units (the type of input being used). They include the following: Lo-T: Low temperature ranges: (-30 ) to (97 ) Lo-P: Low pressure ranges: 0 to 100 lbs. (SA-100) Hi-P: High pressure ranges: 0 to 500 lbs. (SA-500) kw: kilowatt input: 0 to 10VDC 10V: 0 to 10VDC input (must assign a scale factor) Hi-T: High temperature ranges: 0 to 255 (TP-1H) Leak: Units for refrigerant leak: user-selectable range (0-10VDC) Lite: Analog light level sensor: 0 to 97fc Amps: not implemented LO_T: not implemented HI_T: not implemented VSD: not implemented PULS: not implemented RH: not implemented 10V: not implemented These settings must agree with the type of board installed and the sensor assignments used. The setpoint value is programmed when SPT is selected for analog comparison in the logic statement. If SPT is not used in the logic statement, no entry is permitted. If the inputs are compared against a setpoint, the SPT field is automatically configured for the type of sensor being used. TIME DELAY allows a programmable time delay to be set before a logic statement can become true. This can be used for anti-short cycling or to prevent transient changes in output. The SCALE FACTOR setpoint is used when a kw, 0-10V, or Leak type of input is being used. The scale factor scales the reading for zero to max. (scale factor) setting. ALARM and EVENT yes/no settings allow logging to be enabled or disabled for the logic statement. When the logic statement changes state, a log is recorded that identifies the description, time, date, and a user-defined message. MESSAGE is the user-defined identification (10 characters maximum) for the logic statement that is posted to the alarm or event log. Clear Latch Input: A digital input that clears a latched statement when the ERC-1000 senses a closure. 94
Logic is on from: Provides a time schedule that allows the statement to become true only between the programmed times. 01 -BOL HOT WATER HEATER IF Analog [0-0 0-0 0-0(min)] > Analog [0-0 0-0 0-0(avg)] OR Digital [0-0 0-0 0-0(or)] ON ON ON OR Ref Out [0-0 0-0 0-0(or)] ON ON ON Energized is ON ON ON True if count equals (Min. 2) 000 Sensor Type: Lo-T Setpoint: N/A Time Delay: 010 Sec Min on: 0000Sec Log alarm NO Log event NO Message (10 chars) N/A Scale Fact: 1000 Clear Latch Input 0-0 Logic is on from 00:00 to 00:00 * * * * Logic Statements Setpoints Screen Required Access Level: 1&2 95
Logic Statements Clear Latch If the digital output is set up to latch (lch), when a logic statement is true, this screen allows the user to clear the latching and reset the output to normal condition. The cursor is moved to the appropriate statement number latched condition. Press [ENTER] and use the UP and DOWN arrows to toggle the condition on-to-off. Clear Latch 01 HOT WATER HEATER OFF 02 SUB COOLER TEMP OFF 03 LIQUID LEVEL OFF Logic Statements Names The Logic Statements Names screen allows you to enter descriptive names for each of the logic statements configured. Numeric and alphabetic data entries are both permitted. A maximum of 24 characters is allowed. Logic Stmt Names 01 HOT WATER HEATER 02 SUB COOLER TEMP 03 LIQUID LEVEL Required Access Level: 1 Logic Statements Sensor Names The Sensor Names screen allows you to enter descriptive names for each sensor and input assigned to a logic statement. Numeric and alphabetic data entries are both permitted. A maximum of 24 characters is allowed. 01 -BOL HOT WATER HEATER 1-1 AI-GR1 HEATER TEMP 1-2 AI-GR1 OUTPUT TEMP 1-3 AI-GR1 INPUT TEMP 3-1 AI-GR2 OUTSIDE TEMP 3-2 AI-GR2 STORE TEMP 3-3 AI-GR2 RETURN TEMP 1-1 Digital AIR FLOW SWITCH 1-2 Digital LIQUID LEVEL SWITCH 1-3 Digital OIL LEVEL SWITCH Required Access Level: 1 96
Logic Statements Configuration The Logic Statements Output Configuration screen allows you to specify the number of logic statements that the ERC-1000 is to control. As long as the value of this field is 00, you cannot view the other screens listed on the logic statement menu. Configuration Number of Logic Stmt(Max:32).. 03 Required Access Level: 2 NOTE When the Number of Logic Stmts field value is 00, the following screen is displayed for all Logic Statement menu selections, other than the Configuration screen. No Logic Stmts configured Anti-Sweat Heaters Menu The Anti-Sweat Heaters Menu is selected from the ERC-1000 Aux Outputs Menu. It is the Table of Contents to the ERC-1000 s ASH output configuration and control functions. If you intend to make any programming changes to screens on this menu, keep in mind that different levels of access are required by different programmable data fields. Anti-Sweats 1-Status 4-Anti-Sweat Names 2-Setpoints 5-Sensor Names 3-***unused*** 6-Configuration Required Access Level: None The ERC-1000 can control anti-sweat heater output either by a single relay output (digital) or by an analog output. Programming for both means of control is addressed below. Digital Anti-Sweat Heaters Control ANTI-SWEAT HEATERS STATUS SCREEN The Anti-Sweat Heaters Status screen title line consists of the ASH number and a user-defined ASH name. The data lines of this screen consist of six fields: 1. the status of the associated ASH ( ON, OFF, OVR ) 2. the current dew point 3. the time remaining for the current cycle 4. the high dew point setpoint 5. the low dew point setpoint 6. the total duty cycle period If the status indicator shows on or off, it indicates that the load is on or off due to control by a logic statement that is using the same relay assignment. 01-ASH FROZEN FOOD CASES Status=ON DP=55F off in 0023s Hi SP= 60F Lo SP= 20F Period=10m Required Access Level: None 97
ANTI-SWEAT HEATERS SETPOINTS SCREEN The Anti-Sweat Heaters Setpoints screen provides access to all programmable parameters affecting the control of anti-sweat heaters by the ERC-1000. The title line of this screen consists of the ASH number and user-defined ASH name. The first data field Relay enables the assignment of any available relay to an anti-sweat control output. This programmable data field requires Level-2 access. The next data field, DP snsr, which also requires level-2 access, enables the assignment of any dew point sensor as an input to the control logic for the ASH relay. The remaining three data fields, Hi DP=, Lo DP=, and Period=, are the programmable control parameters that govern the duty cycling of the ASH relay. 01-ASH FROZEN FOOD CASES Relay 1-1 DP sensor 1-3 Hi SP= 60 Lo SP= 20F Period= 10m Required Access Level: 1 & 2 ANTI-SWEAT HEATERS NAME SCREEN The Anti-Sweat Heaters Name screen allows you to enter descriptive names for each of the ASH outputs configured for control by the ERC-1000. Numeric and alphabetic data entries are both permitted. A maximum of 24 characters is allowed. Anti-Sweat Names 01 FROZEN FOOD CASES 02 ICE CREAM CASES Required Access Level: 1 ANTI-SWEAT HEATERS SENSOR NAMES SCREEN The Anti-Sweat Heaters Sensor Names screen allows you to enter descriptive names for each of the ASH sensors configured for by the ERC-1000. Numeric and alphabetic data entries are both permitted. A maximum of 24 characters is allowed. Sensor Names 01 1-7 ASH-1 FROZ FOOD CASES 02 1-8 ASH-2 ICE CREAM DOORS LEFT Required Access Level: 2 ANTI-SWEAT HEATERS CONFIGURATION SCREEN The Anti-Sweat Heaters Configuration screen enables you to specify the number of anti-sweat control outputs that the ERC-1000 is to control. As long as the value of this data field is 00, you cannot view the other screens listed on the Anti- Sweat Heaters Menu. The ASH output type can be either digital or analog. Digital uses a relay for ASH control and a duty cycle based on the total period, setpoints, and the store dew point for control. Anti-Sweats Number of Anti-Sweats (Max: 2).2 ASH output type...digital Required Access Level: 2 NOTE When the Number of ASHs field value is 00, the following screen is displayed for all ASH menu selections, other than the Configuration screen. No Anti-Sweats configured 98
Analog Anti-Sweat Heaters Control The ERC-1000 can control anti-sweat heater systems with analog outputs (0-10 volt signal). Calculations are made from high and low dew point setpoints. ASH heater output ranges in analog value from 0-100%. The heaters are at 100% capacity when the space dew point is above the high set point; conversely, they turn off completely at dew points below the low setpoint. Analog anti-sweat control can be put into a software override mode by offsetting the assigned dew point sensor to read above the high setpoint. When an anti-sweat control output returns to normal system control from an override condition, it assumes the state called for by the control algorithm. ANTI-SWEAT HEATERS STATUS SCREEN The anti-sweat heaters Status screen displays the current analog status of the anti-sweat heater system. For example, if the status of the system is at 50%, the heaters are operating at a 50% capacity. The Status screen also displays the current dew point reading, as detected by the space dew point sensor, in addition to the programmed dew point setpoints. 01-ASH FROZEN FOOD CASES Status=88% DP=53F Hi SP=60F Lo SP= 20F No Required Access Level ANTI-SWEAT HEATERS SETPOINTS SCREEN The anti-sweat heaters Setpoints screen provides access to all programmable parameters affecting the control of anti-sweat heaters by the ERC-1000. The title line of this screen consists of the ASH number and user-defined ASH name. 01-ASH FROZEN FOOD CASES Analog Output 1-1 DP sensor 1-3 Hi SP= 60 Lo SP= 20 Required Access Level: 2 The first data field [Analog Output] enables the assignment to an anti-sweat control output. This programmable data field requires Level 2 access. The next data field, [DP sensor], which also requires Level 2 access, enables the assignment of any dew point sensor as an input to the control logic for the ASH. The remaining two data fields, [Hi SP=], and [Lo SP=], are the programmable control parameters that govern the duty cycling of the ASH. ANTI-SWEAT HEATERS NAME AND SENSOR NAME SCREENS These screens display descriptive names for the ASH outputs and the dew point sensors and are identical to those found under DIGITAL ANTI- SWEAT HEATERS CONTROL. Please see the previous section for more details. ANTI-SWEAT HEATERS CONFIGURATION SCREEN The anti-sweat heaters Configuration screen enables you to set the ASH output type to [ANALOG] or [DIGITAL] and to specify the number of anti-sweat outputs that the ERC-1000 controls. NOTE As long as the value of this data field equals [00], you cannot view the other screens listed on the anti-sweat heaters menu. Analog anti-sweat control uses a 0-10VDC analog output, setpoints, and dew point for control. Anti-Sweats Number of Anti-Sweats (Max: 2).2 ASH output type...analog Required Access Level: 2 99
Demand Systems Menu The Demand Systems Menu is selected from the ERC-1000 Aux Systems Menu. It is the Table of Contents to the ERC-1000s Demand Systems output configuration and control functions. If you intend to make any programming changes on this menu, keep in mind that different levels of access are required by different programmable data fields. Demand System 1-Status 4-Demand Names 2-Setpoints 5-Sensor Names 3-Priority Names 6-Configuration Required Access Level: None Demand Systems Status Screen The Demand Systems Status screen title line consists of the demand system number and a userdefined name. The data lines of this screen consist of several fields. The Deviation is a indicator of how far from the shed or restore setpoints the actual kw reading has deviated. The Threshold is the setting used for control; it regulates how fast the deviation is calculated. The Inst kw is the actual kw reading from the kw transducer. The Mode displays Peak or Off Pk to indicate which set of setpoints the demand system is using. The Shed Sp and Rest Sp are the operating setpoints used for load control. When the kw is above the shed setpoint, the deviation increases, eventually turning off the loads. When the kw goes below the rest setpoint, the deviation decreases, eventually turning the loads back on. The remaining lines indicate the load names, their priority, their relay assignments and status (on or off). 01-DEMD DEMAND SYSTEM #01 Deviation: 000 kwsecs Threshold: 0kwsec Inst kw:0100kw Mode: PEAK St : Off Shed Sp: 0500kw Rest Sp: 0400kw Priority #1 HOT WATER HEATER 2-1 ON Priority #2 ANTI-SWEAT HEATER 2-3 OFF Priority #3 ** unused priority** 0-0 Inactive Priority #4 0-0 Inactive Priority #5 0-0 Inactive Priority #6 0-0 Inactive Priority #7 0-0 Inactive Priority #8 0-0 Inactive ** ** Required Access Level: None 100
Demand Systems Setpoints Screen The Demand Systems Setpoints screen provides access to all programmable parameters that affect the demand shedding. The title line of this screen consists of the demand system number and user-defined system name. The first data fields are for Peak and Off Peak shed and restore setpoints. When the inst kw goes above the shed setpoint, loads are shed, starting with the lowest assigned priority number load. When the inst kw is brought back below the restore setpoint, the loads are brought back on in the opposite order. Threshold regulates how fast the deviation is calculated. The range is from 0-99 and the units are kw/sec, kw/min, and kw/hrs. The fastest setting is 99 kw/sec. The slowest setting is 1 kw/ hr. The Max Power value is the maximum kw that is read by the demand system, based on the ct and pt ratios and the type of kw transducer used: (Refer to Figure 16 in Appendix D). TYPE SYSTEM MAX POWER CC/20106400 208V, 3 phase,.36 x (CT max) 3 wire CC/20106401 480V, 3 phase,.83 x (CT max) 3 wire CC/20106402 208V, 3 phase,.36 x (CT max) 4 wire CC/20106403 480V, 3 phase, 4 wire.83 x (CT max) kw Sensor is the actual analog input assignment for the kw transducer. The relay assignments are made under the appropriate priority number and the energized on/ off status is set. The Max Off time is the maximal time that a load is off if it is shed. The Min Off and Min On times are the minimum times that a load is off or on if it is shed. These times are used to avoid short-cycling of a load. The Peak Schedule determines which set of shed/restore setpoints are to be used, based on time of day. If the actual time is within the times programmed, the peak setpoints are used. If the actual is not within the programmed times, the off peak setpoints are used. 01-DEMD DEMAND SYSTEM #1 Load Shd: Peak 0500 kw Off Pk 0200 kw Load Rst: Peak 0400 kw Off Pk 0100 kw Threshold: 99 kwsec Max Power: 0650 kw kw Sensor: 1-1 Priority 1 2 3 4 5 6 7 8 Relay 2-1 2-2 0-0 0-0 0-0 0-0 0-0 0-0 Engrzed ON ON ON ON ON ON ON ON Max Off 000 000 000 000 000 000 000 000 Min Off 000 000 000 000 000 000 000 000 Min On 000 000 000 000 000 000 000 000 Peak Schedule Sun 1 00:00-00:00 Sun 2 00:00-00:00 Mon 1 00:00-00:00 Mon 2 00:00-00:00 Tue 1 00:00-00:00 Tue 2 00:00-00:00 Wed 1 00:00-00:00 Wed 2 00:00-00:00 Thu 1 00:00-00:00 Thu 2 00:00-00:00 Fri 1 00:00-00:00 Fri 2 00:00-00:00 Sat 1 00:00-00:00 Sat 2 00:00-00:00 ** Required Access Level: 1 & 2 101
Demand Systems Priority Names The Priority Names screen allows you to enter descriptive names for each priority load assigned to a demand system. Numeric and alphabetic data entries are both permitted. A maximum of 20 characters is allowed. 01-DEMD DEMAND SYSTEM #01 Priority #1 2-1 HOT WATER HEATER Priority #2 2-2 ANTI SWEAT HEATER Priority #3 0-0 Unused priority Priority #4 0-0 Priority #5 0-0 Priority #6 0-0 Priority #7 0-0 Priority #8 0-0 Required Access Level: 1 Demand System Names Unused priority Unused priority Unused priority Unused priority Unused priority ** ** The Demand System Names screen allows you to enter descriptive names for each of the demand systems. Numeric and alphabetic data entries are both permitted. A maximum of 24 characters is allowed. Demand Names 01 Demand System# 01 02 Demand System# 02 Demand Sensor Names The Sensor Names screen allows you to enter descriptive names for each kw sensor used by the demand systems. Numeric and alphabetic data entries are both permitted. A maximum of 24 characters is allowed. Sensor Names 01 kw sensor 1-1 02 kw sensor 1-2 Required Access Level: 1 Demand Systems Configuration The Demand Systems Configuration screen allows you to specify the number of demand systems that the ERC-1000 is to control. A maximum of two systems are available, each controls a maximum of eight output loads. AS long as this VALUE IS 00, YOU CANNOT VIEW THE OTHER SCREENS LISTED ON THE DEMAND SYSTEMS MENU. The kw input board selects the style of kw input signal. It can be either analog or pulse. NOTE Currently, the pulse board is not supported. Configuration Number of Demand Systems (Max:2). 2 kw input board type is... Analog Pulse board read interval... N/A Sec Required Access Level: 1 Required Access Level: 2 NOTE When the Number of Demand Systems field value is 00, the following screen is displayed for all Demand System menu selections, other than the Configuration screen. No Demand Systems configured 102
Satellite Systems Menu The Satellite Systems Menu is selected from the ERC-1000 Aux Outputs Menu. It is the Table of Contents to the ERC-1000 s satellite systems configuration and control functions. If you intend to make any programming changes to screens on this menu, keep in mind that different levels of access are required by different programmable data fields. Satellite 1 Status 4 Satellite Names 2 Setpoints 5 Sensor Names 3 - ***unused*** 6 - Configuration Satellite Systems Screen Required Access Level: None Satellite Systems Status Screen The Satellite Systems Status screen presents all relevant data concerning the current status of each Satellite system configured for control by the ERC- 1000. In the screen configuration options that you have selected (see the Satellite Configuration screen), some data fields may be absent from this screen and all its subsequent pages. The sample screen, however, contains all text and data fields currently available for this screen. The next line shows the actual space and outdoor temperatures along with the status of the loads ( ON, OFF, OVR ). The next line shows the day/night mode of operation and the setpoints. The remaining lines show the individual sensors assigned, along with the user-defined descriptions. 01 PRODUCE AREA UNIT HEATER SPC= 60F OUT= 50F HT= ON FAN= ON Day Setpt 70F Lockout 80F Sensors: SPC 1-1 65F OUT 1-2 50F PRODUCE AREA SPACE TEMP OUTSIDE TEMP ** ** Satellite Systems Status Screen Required Access Level: None 103
Satellite Systems Setpoints Screen The Satellite Systems Setpoints screen provides access to all programmable parameters affecting the control of satellite systems by the ERC-1000. The first line of this screen consists of the satellite system number and the user-defined name. The second line allows selection of either HEAT or COOL for the Type of load to be controlled. The next line provides for Setpoint entries for day and night temperatures, lockout, and time delay. The Cut-in and Cut-out entries are used if the unit is configured for deadband control. The next lines are where the load relays are assigned. The Satl Relay is the heating or cooling load to be controlled. The Fan Control can be set to Auto or On. If it is set to Auto, the fan goes off whenever the heating or cooling load is satisfied. If On is selected, the fan runs all of the time. Nsetbak inpt is the digital input for a switch that, when closed, puts the system into day setpoint mode from a night mode. The next two lines allow for temperature sensor assignments. The next area is for assigning the occupied times schedule for the satellite system. If the holiday schedule is being used, the last section is for setting up the holiday occupied times schedule. 01-PRODUCE AREA UNIT HEATER Type: HEAT DAY Ngt Lout Delay Cut-in 70F 65F 50F 01 m Cut-out 75F 70F Satl Relay 5-1 Energized = Load On Fan control: ON Fan relay 5-4 Nsetbak inpt 0-0 NSB Ovr inpt 0-0 SPC sensor 1-1 Out sensor 1-2 Occupied Schedule UNUSED Sun1 00:00-00:00 Sun2 00:00-00:00 Mon1 00:00-00:00 Mon2 00:00-00:00 Tue1 00:00-00:00 Tue2 00:00-00:00 Wed1 00:00-00:00 Wed2 00:00-00:00 Thu1 00:00-00:00 Thu2 00:00-00:00 Fri1 00:00-00:00 Fri2 00:00-00:00 Sat1 00:00-00:00 Sat2 00:00-00:00 Holiday Schedule UNUSED Copy Master Holiday Schedule Now? NO NEW YEAR S DAY 01-01-00 01 00:00-00:00 02 00:00-00:00 ** ** Required Access Level: 1 & 2 104
Satellite Systems Names Screen The Satellite Names screen allows you to enter descriptive names for each of the satellite systems configured for control by the ERC-1000. Numeric and alphabetic data entries are both permitted. A maximum of 24 characters is allowed. Satellite Names 01 PRODUCE AREA UNIT HEATER 02 RECEIVING UNIT HEATER 03 MANAGERS AC UNIT 04 unused 05 unused 06 unused 07 unused 08 unused ** ** Required Access Level: 1 Satellite Systems Sensor Names Screen The Satellite Systems Names screen allows you to enter descriptive names for each of the Satellite Systems configured for control by the ERC-1000. Numeric and alphabetic data entries are both permitted. A maximum of 24 characters is allowed. 01-PRODUCE AREA UNIT HEATER 1-1 SPC tmp PRODUCE AREA TEMPERATURE 1-2 OUT tmp OUTDOOR TEMPERATURE Required Access Level: 1 Satellite Systems Configuration Screen The Satellite Systems Configuration screen allows you to specify the number of satellite systems that the ERC-1000 is to control. A maximum of eight systems is available; each can control two output loads. AS LONG AS THIS VALUE IS 00, YOU CANNOT VIEW THE OTHER SCREENS LISTED ON THE SATELLITE SYSTEMS MENU. The options for NightSetback Switch and Night Setback Override Switch can be set to YES if they are to be used. If they are not used, they should be set to NO. Temp Deadband allows for cut-in and cutout setpoints to be used for control purposes. If this option is not selected, a single setpoint control is used. Fan EON/EOFF determines the mode of operation for the fan relay. EON lets the fan turn on when the relay is ON. EOFF lets the fan turn on when the relay turns OFF. This is used for failsafe operation. NOTE When the Number of Satellites field value is 00, the following message is displayed for all Satellite menu selections, other than the Configuration screen: No Satellites Configured SATELLITE CONFIGURATION Number of Satellites...(Max: 8) Night Setback Switch...YES Night Setback Override Switch...YES Temperature Deadband...YES Fan EON/EOFF...EON Required Access Level: 2 105
Time-of-Day Outputs Menu The Time-of-Day Outputs Menu is selected from the ERC-1000 Main Menu. It is the Table of Contents to the ERC-1000 s TOD output configuration and control functions. If you intend to make any programming changes to screens on this menu, keep in mind that different levels of access are required by different programmable data fields. The sensor names selection is only applicable if either digital or analog light level control is configured. TOD Outputs 1-Status 4-TOD Names 2-Setpoints 5-Input Names 3-***unused*** 6-Configuration Required Access Level: None Time-of-Day Outputs Status Screen The Time-of-Day Output Status screen title line consists of the TOD Output number and userdefined name of the time-dependent load. The data lines of this screen consist of several fields: The status of the associated load ( ON, OFF, OVR ), the current time, the light level sensor status (if used), the primary on/off schedule for the load, and the secondary on/off schedule for the load. NOTE Holiday schedules are not visible on this screen (see the next section). If digital light level is used, the second line indicates: Photo cell input: OFF. This displays the digital input assignment and how the input is evaluated. For example, ON indicates that the digital input must be ON (closed) for the load to turn off. If the input type is OFF, the digital input must be OFF (open) for the load to turn on. If the TOD load is to be on by its TOD schedule, but the light level is high, the TOD load displays off with an inverse H indicator beside it. An event is entered into the event log when light level turns off a TOD load. When the status indicates on or off, the TOD load is turned on or off by a function of the logic statement. 01 TOD PARKING LOT LIGHTS Status= ON - 11:35 Anlg Lght: Actual: 0 FTC Spt 5FTC Fril On from 09:00 to 17:00 Fri2 On from 00:00 to 00:00 Time-of-Day Outputs Status Screen Required Access Level: None 106
Time-of-Day Outputs Setpoints Screen The Time-of-Day Output Setpoints screen provides access to all programmable parameters that affect the control of time-dependent loads by the ERC-1000. The title line of this screen consists of the Time-of-Day Output number and userdefined name of the time-dependent load. The first data field, Relay, enables the assignment of any available relay to a timedependent load. This programmable data field requires level-2 access. On the same data line, Energized=Load ( ON or OFF ) determines whether the relay is normally open or normally closed when it is deenergized. This feature serves as a safeguard for loads that must be on when power to the ERC-1000 or its relay boards is interrupted. This programmable data field requires Level-2 access. The next three data fields are used if analog light level is configured. The actual setpoint for light level control is entered, along with a differential. The Analog light level input assignment is entered here also. If digital light level control is used, these three lines are replaced by one line: Light Level Input: 1-1 Input Type: ON This provides for the digital input assignment and the condition for which the load turns off. If the type is set to ON, the digital input must be ON (closed) for the load to go off. If the type is set for OFF, the digital input must be OFF (open) for the load to go off. The next two groups of data fields, the Daily On/Off Schedule and Holiday On/Off Schedule, can be programmed and reprogrammed at your discretion and require Level-1 access. NOTE The effect of any schedule change on the state of the load can be immediate. Also, the holiday schedules appear on this screen only if the ERC- 1000 has been configured with one or more holidays (see the System Configuration screen). The sample TOD schedule indicates the load coming on at 5 p.m. and stays on overnight until 5 a.m. For more information about Schedule Programming for the ERC-1000, refer to the Programming and Interrogation section of this manual. 107
01 -TOD PARKING LOT LIGHTS Relay 1-1 Energized = Load OFF Light Level Setpt: 0050 FTC Light Level Diff: 05 FTC Variable Ballast: Analog Out: 0-0 Day Setpt: 0100 FTC Night Setpt: 0080 FTC Light Level Snsr: 0-0 Scale Factor: 1000 FTC Daily On/Off Schedule: Sun1 00:00-00:00 Sun2 00:00-00:00 Mon1 00:01-05:00 Mon2 17:00-24:00 Tue1 00:01-05:00 Tue2 17:00-24:00 Wed1 00:01-05:00 Wed2 17:00-24:00 Thu1 00:01-05:00 Thu2 17:00-24:00 Fri1 00:01-05:00 Fri2 17:00-24:00 Sat1 00:01-05:00 Sat2 17:00-24:00 Holiday On/Off Schedule: CHRISTMAS 12-25-00 01 00:00-05:00 02 00:00-00:00 ** ** Time-of-Day Outputs Setpoints Screen Required Access Level: 1 & 2 108
Time-Of-Day Outputs Names Screen The Time-of-Day Outputs Names screen allows you to enter descriptive names for each of the time-dependent loads configured for control by the ERC-1000. Numeric and alphabetic data entries are both permitted. A maximum of 24 characters is allowed. TOD Names 01 PARKING LOT LIGHTS 02 LOADING DOCK LIGHTS 03 OFFICE LIGHTS 04 MAIN AISLE LGTS ** ** Required Access Level: 1 Time-of-Day Sensor Names Screen The Time-of-Day Sensor Names screen allows you to enter descriptive names for each of the digital/analog inputs configured for control by the ERC-1000. Numeric and alphabetic data entries are both permitted. This screen is only available when either Digital or Analog Light Level Sensors is configured for use. A maximum of 24 characters is allowed. TOD Sensor Names 01 LIGHT SENSOR ON ROOF 02 LIGHT SENSOR IN PARKING LOT 03 ***unused*** 04 ***unused*** 05 ***unused*** 06 ***unused*** 07 ***unused*** 08 ***unused*** 09 ***unused*** 10 ***unused*** 11 ***unused*** 12 ***unused*** 13 ***unused*** 14 ***unused*** 15 ***unused*** 16 ***unused*** ** ** Required Access Level: 1 109
Time-of-Day Outputs Configuration Screen The Time-of-Day Output Configuration screen allows you to specify the number of timedependent loads that the ERC-1000 is to control. AS LONG AS THE VALUE OF THIS DATA FIELD IS 00, YOU CANNOT VIEW THE OTHER SCREENS LISTED ON THE TIME-OF- DAY OUTPUTS MENU. The type of Photo Cell Board Type (Temp, Digital, or 0-10V) is configured here. If no light level control is used, set this field to NONE. The Temp style sensor is Danfoss/ECI Part # 01660400. The Digital is a standard dry contact photocell. The 0-10V sensor could be Danfoss/ ECI Part # 01660600 or an equivalent sensor that supplies a 0-10VDC output signal. If the output is controlled via Variable Ballast, set the next option to YES. This allows entry of an analog output for controlling the light level by varying the DC voltage to the ballast. TOD CONFIGURATION Number of TODs (Max: 16)05 Photo cell board type.. ANALOG Variable Ballast... YES Required Access Level: 2 NOTE When the Number of TODs field value is 00, the following screen is displayed for all TOD menu selections, other than the Configuration screen. No TOD Outputs configured Log Menu The Log Menu is selected from the ERC-1000 Main Menu. It is the Table of Contents to the various performance logs maintained by the ERC- 1000. Level 2 access is required to clear the data in any of the ERC-1000 s logs. Log Menu 1 Run Time Log 4 Event Log 2 Note Log 5 Power Log 3 Alarm Log 6 I/O Logs Required Access Level: None Run Time Menu The Run Time Menu is selected from the Log Menu. It enables the display of both unit cycle and unit run time logs. Run Time Menu 1-HVAC Log 4-Satellite Log 2-TOD Log 5-Rack Log 3-Anti-Sweat Log Required Access Level: None HVAC Log Menu The HVAC Log Menu is selected from the Log Menu. It enables the selection of HVAC unit cycles and unit run time logs. HVAC Log 1-Cycles 2-Runtimes Required Access Level: None 110
HVAC CYCLES LOG SCREEN The HVAC Cycles Log screen displays the number of system cycles recorded for the following time periods: since 00:00:01 of the current day; over the previous 24-hour day (00:00:00 to 23:59:59); since start-up. 01-HVAC FOOD SECTION System Today Yesterday Total FANspd 1 001 005 000022 FANspd 2 010 025 000153 AC stg 1 003 012 000102 AC stg 2 001 003 000082 AC stg 3 000 000 000041 AC stg 4 000 000 000000 DP stg 1 002 007 000179 DP stg 2 000 005 000113 DP stg 3 001 005 000022 HR stg 1 000 000 000238 HR stg 2 000 000 000174 HR stg 3 000 000 000000 AH stg 1 000 000 000162 AH stg 2 000 000 000097 AH stg 3 000 000 Required Access Level: None 111
HVAC RUNTIMES LOG SCREEN The HVAC Runtimes Log screen displays the runtimes recorded for each system of each HVAC unit during the following time periods: since 00:00:01 of the current day; over the previous 24- hour day (00:00:01 to 23:59:59); since start-up. 01-HVAC FOOD SECTION System Today Yesterday Total FANspd 1 00:25h 01:23h 000122h FANspd 2 00:05h 00:25h 000103 AC stg 1 00:23h 02:01h 000102h AC stg 2 00:10h 01:24h 000082h AC stg 3 00:00h 00:00h 000041h AC stg 4 00:00h 00:00h 000000h DP stg 1 00:11h 00:017 000079h DP stg 2 00:00h 00:06h 000043h DP stg 3 00:00h 00:00h 000022h HR stg 1 00:00h 00:00h 000238h HR stg 2 00:00h 00:00h 000174h HR stg 3 00:00h 00:00h 000000h AH stg 1 00:00h 00:00h 000162h AH stg 2 00:00h 00:00h 000097h AH stg 3 00:00h 00:00h 000000h Required Access Level: None 112
TOD Log Screen The TOD Log screen displays the runtimes recorded for each TOD output during the following time periods: since (00:00:01 to 23:59:59); since start-up. 01-Runtimes OFFICE LIGHTS Today Yesterday Total Runtimes: 04:23h 06:00h 000065h Required Access Level: None ASH Log Screen The ASH (Anti-Sweat Heaters) Log screen displays both the runtimes and cycles recorded for each ASH output during the following time periods: since 00:00:01 of the current day; over the previous 24-hour day (00:00:01 to 23:59:59); since start-up. 01-Runtimes FROZEN FOOD Today Yesterday Total Runtimes: 02:15h 04:23h 000325h Required Access Level: None Satellite Log Menu The Satellite Log Menu is selected from the Log Menu. It enables the selection of the Satellite unit cycles and unit runtime logs. SATELLITE CYCLES LOG SCREEN The HVAC Cycles Log screen displays the number of system cycles recorded for the following time periods: since 00:00:01 of the current day; over the previous 24-hour day (00:00:01 to 23:59:59); since start-up. 01-PRODUCE AREA UNIT HEATER System Today Yesterday Total SATL rly 001 005 000022h FAN rly 010 025 000153h Required Access Level: None SATELLITE RUNTIMES LOG SCREEN The HVAC Runtimes Log screen displays the runtimes recorded for each system of each HVAC unit during the following time periods: since 00:00:01 of the current day; over the previous 24- hour day (00:00:01 to 23:59:59); since start-up. 01-PRODUCE AREA UNIT HEATER System Today Yesterday Total SATL rly 00:25h 01:23h 000122h FAN rly 00:05h 00:25h 000103h Required Access Level: None SATELLITE LOGS 1-Cycles 2-Runtimes Required Access Level: None 113
Rack Log Screen The Rack Log screen displays the recorded run-times of refrigeration rack compressors and fans for the following time periods: since 00:00:01 a.m. of the current day; over the previous 24-hour day (00:00:01 to 23:59:59); since system start-up. These values can be reset with Level 2 access by choosing the desired field and pressing [ENTER]. 01 RACK A Unit Today Yesterday Total Compr 1 01:23h 03:17h 000429h Compr 2 00:47h 02:41h 000356h Compr 3 00:33h 02:08h 000311h Compr 4 00:30h 02:14h 000309h Compr 5 00:00h 00:00h 000000h Compr 6 00:00h 00:00h 000000h Compr 7 00:00h 00:00h 000000h Compr 8 00:00h 00:00h 000000h Compr VS 00:00h 00:00h 000000h Fan 1 05:13h 15:34h 001023h Fan 2 04:48h 13:56h 000998h Fan 3 04:23h 13:01h 000897h Fan 4 04:07h 12:79h 000874h Fan 5 00:00h 00:00h 000000h Fan 6 00:00h 00:00h 000000h ** ** Required Access Level: None 114
Note Log The Note Log screen enables you to enter a maximum of ten descriptive lines of information relating to the ERC-1000. This can be used for changes, or more descriptive information about equipment hooked to the unit. This can also be used for remotely monitoring any changes made, or to send messages from the remote terminal to a service mechanic at the ERC-1000. Alarm Log Screen The Alarm Log screen displays a list of up to fifty recorded system alarms of the following types: System: Power fail, Power up, Dial fail, Master Clear HVAC: No airflow, Phase Loss, High Temp, Low Temp Rack: Hi temp, Lo temp, Hi suct p, Lo suct p, Phase loss, Run Verify, Liq level, Oil Fail, Oil pres, Hi head p, Lo head p, Logic Statement alarms and messages Note Log Enter Modifications: (max 36 char) 1) 2) NOTE 3) 4) 5) 6) 7) 8) 9) 10) ** ** When alarms are cleared, another entry is generated with an OK listed next to the alarm message. Each line of the Alarm Log screen consists of the date and time of the occurrence, the name of the affected system (unit, TOD, ASH, Logic, or System ), and the type of the alarm. Required Access Level: 1 Alarm Log 01-01 11:55 HVAC UNIT #1 Phase loss OK 01-01 11:55 HVAC UNIT #1 Phase loss 01-01 07:00 HVAC UNIT #1 Lo temp 01-01 04:00 Rack A Lo Pres 01-01 03:30 System Mst Clr ** ** Alarm Log Screen Required Access Level: None 115
Event Log Screen The Event Log screen displays a list of up to fifty recorded system events of the following types: AC lockout, HR lockout, AH lockout, On holiday, HR fl On, HR fl Off, No Airflow and No Airflow Ok. Each line of the Event Log screen consists of the date and time of the occurrence, the name of the affected system (unit, TOD, ASH, or System ), and the type of the event. When alarms are cleared, another entry is generated with an OK listed next to the alarm message. Event Log 05-24 01:55 FOOD SECTION No Airflow 01-01 11:55 FOOD SECTION AC lockout 01-01 11:00 HVAC System 1 No Airflow 01-01 07:00 HVAC System 1 AC Lockout 01-01 06:30 HVAC System 1 No Airflow ** ** Required Access Level: None Power Log Menu The Power Log Menu is selected from the Log Menu. It enables the display of both hourly and daily HVAC unit power logs. Power Log 1-Power:hourly 2-Power:daily Required Access Level: None Hourly Power Log Screen The Hourly Power Log screen displays up to twenty-five hours of power consumption data for each configured HVAC unit. Each line of the Hourly Power Log screen consists of the starting time of the logging period, the total power consumption for that period, the peak power consumption level for that period, and the time at which the peak occurred. 01-PMON FROZEN FOOD Wed 00:00 221 kwh 183 kw @ 01:15 Wed 23:00 237 kwh 198 kw @ 23:57 Wed 22:00 235 kwh 191 kw @ 22:25 Required Access Level: None 116
Daily Power Log Screen The Daily Power Log screen displays a cumulative daily record of power consumption. The data line for the Daily Power Log screen consists of the data for the logging period, the total daily power consumption, the peak power consumption for the given day, and the time at which the peak occurred. 01-PMON FROZEN FOOD 01-01 24 kwh 973 kw @ 00:02 Required Access Level: None I/O Log Menu The Interval Log Menu is selected from the RC-1000 Log Menu. It is the Table of Contents for the interval logs. Select the desired choice for the input/output to be viewed. I/O Logs 1-Analog Inputs 4-Digital Inputs 2-Analog Outputs 3-Digital Outputs Required Access Level: None I/O Log-Analog & Digital Inputs & Outputs The I/O Log selection allows the user to display a historical record of the analog inputs, analog output, digital inputs, and digital output. To access this selection, press [1] from the menu and select the appropriate channel for the desired input/ output. Next, Exit [1], and press [2] from the menu to display the data, which is set up in page format. The times on the left-hand side correspond to the current time and previous times based on the logging interval chosen. Each line contains four data records. The total number of data records is dependent upon the logging interval and the total number of input/outputs assigned. Analog Inputs 1- Select Board & Channel 2- Display Data Required Access Level: None Override Menu The Override Menu is selected from the ERC- 1000 Main Menu. It is the Table of Contents to the ERC-1000 s I/O control override functions. Level 1 access is required to override any output or input controlled by the ERC-1000. If the demand system is set up for pulse input, entry number one shows access to the Pulse Offset screen. NOTE For any given relay, the override switch supersedes an active software override. Overrides 1-***unused*** 4-Digital Outputs 2-TOD Overrides 5-Digital Inputs 3-Override Log 6-Sensor Offsets Required Access Level: None 117
TOD Overrides The TOD overrides are used to temporarily override ON the TOD outputs. The loads are programmed for an override period in hours and/or minutes. The load is overridden ON for the override duration. After the override period has expired, the load returns to normal control. This feature is useful for turning loads ON in the evenings or weekends when the store is normally scheduled to be closed. 01-TOD OUTPUT #1 TOD control override time: 00hr 00min Required Access Level: None Override Log The Override Log screen enables you to view a list of any hard or soft overrides that have occurred. This screen also displays the date and time that the override was initiated and when it was cleared. The overrides shown are: Rly HRD Ovrd: Hard switch override (on or off) Rly HRD CLR: Hard switch back to AUTO position Rly Ovrd OFF: Soft override the relay OFF Rly Ovrd ON: Soft override the relay ON Rly Ovrd CLR: Soft override cleared Override Log 01-01 05:43 Bd:1 Ch:1 Rly Ovrd Clr 01-01 05:30 Bd:1 Ch:1 Rly Ovrd Off Required Access Level: 1 118
Digital Output Override Screen The Digital Output Override screen provides the capability to override individual digital outputs on a board-by-board basis. NOTE For any given relay, the override switch supersedes an active software override. Digital output overrides are performed in the following manner: a. Select desired board by using the left and right arrow keys. b. Press [ENTER] and select the desired input by using the arrow keys. c. Press [ENTER] and use the up and down arrows to select on, off, or none. d. When the correct override is selected, press [ENTER], followed by [EXIT]. IMPORTANT All overrides remain in override unless removed by the same process used to program the override. Override conditions on/off depend on the assignment of the load, and do not indicate the relay being energized or de-energized. Board>1 Digital Outputs Ovrd 1:none 2:none 3:none 4:none 5:none 6:none 7:none 8:none Required Access Level: 1 119
Digital Input Override Screen The Digital Input Override screen provides the capability to override the status of individual digital inputs on a board-by-board basis. Digital input overrides are performed in the following manner: a. Select the desired board by using the left and right arrow keys. b. Press [ENTER] and select the desired input by using the arrow keys. c. Press [ENTER] and use the up and down arrows to select on, off, or none. d. When the correct override is selected, press [ENTER] followed by [EXIT]. IMPORTANT All overrides remain in override unless removed by the same process used to program the override. Sensor Input Offset Screen The Sensor Input Offset screen provides the capability to add to or subtract from the raw counts of data from any sensor. This is done on a boardby-board basis. First, select the specific board and sensor by using the arrow keys. Next, press [ENTER] and program the value of offset desired. To return a sensor to normal, use an offset of 00. The bottom status line indicates the type that the selected board is configured as (i.e., temperature, pressure) and the units the card is operating under (i.e., degrees Fahrenheit, pressure, percent). Board>1 Sensor Input Offset Snsr 1: 0 2: 0 3: 0 4: 0 5: 0 6: 0 7: 0 8: 0 Type: Temp Unit : F Sensor Input Offset Screen Required Access Level: 1 Board>1 Digital Input Ovrd 1:none 2:none 3:none 4:none 5:none 6:none 7:none 8:none Digital Input Override Screen Required Access Level: 1 120
System Menu The System Menu is selected from the ERC- 1000 Main Menu. It is a Table of Contents to the ERC-1000s miscellaneous system configuration and status screens. NOTE Level 1 access is required to program the screens on this menu. System 1-Date/Time 4-I/O List 2-Dlite Savings 5-Access Codes 3-Alarm Dial Out 6-System Config Required Access Level: None Date & Time Screen The Date & Time screen allows you to set the ERC-1000 system clock. NOTE Changes to the ERC-1000 system clock may have an immediate effect on schedules that are currently active for HVAC units or Time-of-Day outputs. A DT or ST to the right of the time reflects whether the time is in Daylight Savings Time (DT) or Standard Time (ST). Daylight Savings Screen The Daylight Savings screen allows you to specify the dates on which daylight savings time starts and ends. The system clock is adjusted accordingly on those dates. The ERC-1000 does this automatically. Required Access Level: 1 Dlite Savings Spring forward on first Sun after 04-01 Fall back on first Sun after 10-25 Alarm Dial Out Menu The Alarm Dial Out Menu is selected from the ERC-1000 System Menu. It is a Table of Contents to the ERC-1000 s alarm dial out and selectable alarm dial out screens. NOTE Level 1 access is required to program the sub screens on this menu. Alarm Dial Out 1-Phone Numbers 3-Dial Out 2-Alarm Setup 4-Miscellaneous Required Access Level: None Date/Time Date 08-24-00 Mon Time 11:05:04 DT Required Access Level: 1 121
Alarm Phone Numbers Screen The Alarm Phone Numbers screen enables you to specify several telephone numbers to be used for alarm dial-out by the ERC-1000. Two groups are provided for maximum flexibility in setting up a dial out system. Each system on the ERC-1000 can be configured to dial to one or both groups. During an alarm state, the ERC-1000 attempts to dial out to either a remote serial printer, a dumb terminal, or the Danfoss/ECI Smart Alarm. In addition to sending the alarm information, a device ID, up to 30 characters long, is transmitted. If the phone number is local, it is not necessary to enter an area code. Press [ENTER] to bring the arrow to the desired display area and enter data. Dial out dials the Occupied Phone #s during the occupied schedule times. Unoccupied Phone #s are dialed at all other times, or if the occupied scheduled stop time for the current day is 00:00. All numbers are dialed, regardless of whether the modem noticed the previous number. If an alarm occurs and dialout has not completed before the time changes from occupied to unoccupied, dial out stops trying to call the occupied numbers and starts calling the first unoccupied number. If a new alarm occurs during a dial out sequence, the ERC- 1000 adds the new alarm to the numbers left to be dialed out and then redials any numbers that did not receive the new alarm. Dial out is effectively disabled if there is not a valid phone number in the list for the specified time of day. Phone numbers must be entered in order, starting at the top of each list. All numbers must be left justified. Twenty-four hours is the maximum amount of on time in any given day. Keep in mind that the ERC-1000 uses military time (e.g., 04:00 = 4:00 a.m., 16:00 = 4:00 p.m.) If a start time equals a stop time, nothing happens. 00:00 is a valid start time, but not a valid stop time. 1 Grp 1 Unoccupied Phone #s Occupied Phone #s >1-800-555-1234 >1-800-555-4321 >555-1212 >555-2000 >555-0101 >555-2525 Occupied Schedule Sun From 00:00 To: 00:00 Mon From 08:00 To: 05:00 Tue From 08:00 To 05:00 Wed From 08:00 To: 05:00 Thu From 08:00 To: 05:00 Fri From 08:00 To: 12:00 Sat From 08:00 To: 12:00 Holiday Schedule Mon Day 01: 00-00 02: 00-00 03: 00-00 ** ** Required Access Level: 1 122
Alarm Setup Menu This menu allows access to selection of the types of alarms that initiate an alarm dial out sequence. Enter the desired field and proceed to set up each system on the ERC-1000. Using the following screens, if LOCAL is set to YES, the alarm is sent locally in the store to a dumb terminal or Smart Alarm through the internal store communications loop. When using the Smart Alarm, this is the only parameter needed to set up on the ERC-1000. When the GROUPS are set to YES, the alarms are dialed out to the respective remote modems or printers. Alarm Setup 1-HVAC Units 2-Rack 3-Logic Statements 4-System Required Access Level: None 123
HVAC UNITS ALARM SETUP This screen allows setup of the dial out parameters by each individual HVAC unit. The first line shows the HVAC unit name, as entered in the HVAC Unit Names screen. There are as many pages of dial out screens as there are configured HVAC Units. To go to other HVAC units, use the arrow keys. The selections for dial out include local, group 1, group 2, and delay. Local enables a locally connected dumb terminal or Smart Alarm. Grp 1 enables or disables the telephone numbers and time of day schedule for group 1. Grp 2 enables or disables the telephone numbers and time of day schedule for group 2. Delay is a delay before the alarm is dialed out. If grp 1 and grp 2 are not being used, the Delay fields show N/A. The delay does not apply to local. High or Lo temperature are the high or low temperature alarms. OK (Cleared) indicates that an alarm is cleared. >1 24 Ice Cream Doors Alarm type Local Grp1 Grp2 Delay ----------- ----- ---- ---- ------ High Temperature NO YES YES 001m Low Temperature NO YES NO 001m OK (Cleared) NO YES NO 001m ** ** Required Access Level: 1 124
RACK ALARM SETUP This screen allows setup of the dial out parameters by each individual rack. The first line shows the rack name, as entered in the Rack Names screen. There are as many pages of dial out screens as there are configured racks. To go to other racks, use the arrow keys. The selections for dial out are as follows: Local, which enables a locally connected dumb terminal or Smart Alarm; Grp 1, which enables or disables the phone numbers and time of day schedule for Group 1; Grp 2, which enables or disables the phone numbers and time of day schedule for Group 2; Delay, which is a delay before the alarm is dialed out. If Grp 1 and Grp 2 are not being used, the Delay fields show N/A. This delay does not apply to local. High or Low pressure are the High or Low pressure alarms. Run Verify are the compressor and condenser fan run verify alarms. Miscellaneous are phase loss, low liquid level and oil pressure. OK (Cleared) is the OK indication that an alarm is cleared. >1 Medium Temp Rack Alarm type Local Grp1 Grp2 Delay ----------- ----- ---- ---- ------ High Pressure NO YES YES 001m Low Pressure NO YES NO 001m Run Verify NO YES NO 010m Miscellaneous NO YES NO 001m OK (Cleared) NO YES NO 001m ** ** Required Access Level: 1 125
LOGIC STATEMENTS ALARM SETUP This screen allows setup of the dial out parameters by each individual logic statement group. The description under Name shows the logic statement name, as entered in the Logic Statement Names screen. There is only one page for this dial out screen. The categories for dial out are as follows: Local, which enables a locally connected dumb terminal or Smart Alarm; Grp 1, which enables or disables the telephone numbers and time of day for group 1; Grp 2, which enables or disables the telephone numbers and time of day schedule for group 2; Delay, which is a time delay before the alarm is dialed out. If Grp 1 and Grp 2 are not being used, the Delay fields show N/A. This delay does not apply to local. If the logic statement is not configured for alarming from the Setpoints screen, all of these fields show N/A. Since there is only one type of alarm generated by the logic statement groups, each group is only configurable for the local and telephone number groups. OK (Cleared) is the OK indication that an alarm is cleared. Logic Statements Name Local Grp1 Grp2 Delay ------------- ----- ---- ---- ----- Logic Rung #1 NO YES YES 001m Logic Rung #2 NO YES NO 001m Logic Rung #3 NO YES NO 001m -------------------- OK (Cleared) NO YES NO 001m ** ** Required Access Level: 1 126
SYSTEM ALARM SETUP This screen allows the setup of system-related alarms for dial out. Each category can be set up for local and dial out telephone number groups. Override is any override condition (either hard or soft). Miscellaneous alarms are power up, power fail, low battery and master clear. OK (Cleared) is the OK indication that an alarm is cleared. Select System Alarms Alarm Type Local Grp1 Grp2 ----------- ------ ----- ------ Override NO YES NO Miscellaneous NO YES NO OK (Cleared) NO YES NO ** ** Required Access Level: 1 DIAL LOG This screen shows a list of all dial out attempts, whether they are successful or not. This should provide a check that alarms have been sent and to which numbers. If there are failures, the source of the problem can be tracked by this log. Occup1 #1 is the first occupied number in Group #1. Occup2 #1 is the second occupied number in Group #1. Occup3 #1 is the third occupied number in Group #1. Occup1 #2 is the first occupied number in Group #2. Occup2 #2 is the second occupied number in Group #2. Occup3 #2 is the third occupied number in Group #2. Modem Fail indicates that the modem at the RC- 2000 failed to call out (i.e., phone line bad or modem problem). Dial Fail indicates that the modem dialed out but did not get a correct answer (i.e., busy signal or remote printer modem failure). Dial Log 10-02 12:05 Ice Cream Case Unocc1 #1 10-02 04:30 Rack B Occup2 #1 10-01 23:50 Rack B Modem Fail Required Access Level: None Each line of the log indicates the date and time that the dial out occurred, the alarm source (rack, circuit, logic statement, etc.), the phone number associated with that alarm type, and which group it was set up under. Unocc1 #1 is the first unoccupied number in Group #1. Unocc2 #1 is the second unoccupied number in Group #1. Unocc3 #1 is the third unoccupied number in Group #1. Unocc1 #2 is the first unoccupied number in Group #2. Unocc2 #2 is the second unoccupied number in Group #2. Unocc3 #2 is the third unoccupied number in Group #2. 127
Alarm Dial Out/ Miscellaneous This screen allows data entry of miscellaneous alarm-related parameters. The first line is the userdefined User ID. This can be up to thirty characters. The next line selects the Dial Test Choice. This is either: None, All, Local, Grp 1, or Grp 2. This selection determines which numbers are used for an immediate, one-time dial out test. The dial out test includes the ERC-1000 unit number ID, followed by the user-defined store identification, the current date and time, the date and time of the dial out test, and a tally of alarms recorded that day. Retry Dialing in selects the time allowed before the ERC-1000 retries dialing out alarm data after a modem failure. If Retry Dialing time is set to 00, the ERC-1000 does not retry dial out until a new alarm is received. Otherwise, the ERC- 1000 tries to dial out again after this time delay. The Time Between Dialing is used to set a time delay between dialing alarms when a modem error is encountered. The unit waits for this time period before attempting to redial an alarm. Modem Cmd sets a user-defined modem command string. This is useful when using modems that do not have dip switches to set parameters. The default for the modem command is E0V0X1. For more information, see Table 4 or Table 5, Modem Command Line Settings. Daily Dialout lists the times each day that the groups perform a dial out test. Grp 1 and Grp 2 are the user-defined names for the dial out group. A maximum of 24 characters is allowed. Baud Rate For Dialout Group 1 allows the user to set the baud rate that any alarms sent to Group 1 use (i.e., the baud rate of the modem on the receiving end of the dial out). The choices are: 300/1200/2400/9600 baud. Baud Rate For Dialout Group 2 allows the user to set the baud rate that any alarms sent to group 2 use (i.e., the baud rate of the modem on the receiving end of the dial out). The choices are: 300/1200/2400/9600 baud. Re-dial Active Alarms in XXX minutes determines how often the alarms are dialed again if they remain active. The ERC-1000 tries each number five times before noting a failure. If a number fails, the ERC- 1000 continues to the next number. This process continues until five failures occur on any number. The failure is then logged. IMPORTANT For remote alarm printer and dumb terminal setup information, contact Danfoss/ECI Applications Engineering for assistance at 410-403-4000. (use 410-931-8250 subsequent to April, 2001) Miscellaneous Device ID: Store 189 ERC-1000 Dial Test Choice: None Retry Dialing in (0-24) : 01 hrs Time Between Dialing: 060 sec Modem Cmd : E0V0X1 Daily Dialout Grp1: 1: 01:00 2: 13:00 Daily Dialout Grp2: 2: 01:15 2: 13:15 Grp 1 Name: Grp1 Grp 2 Name: Grp2 Baud Rate for Dial-Out Group 1: 1200 Baud Rate for Dial-Out Group 2: 1200 Re-dial Active Alarms In 015 minutes ** ** Alarm Dialout/Miscellaneous Screen Required Access Level: 1 128
I/O List Menu The I/O List Menu is selected from the System Menu. It is a Table of Contents to the ERC-1000 s I/O List Screens. These screens provide a boardby-board I/O map, detailing all current ERC-1000 relay, sensor, and input assignments. I/O List 1-Analog Inputs 4-Digital Outputs 2-Analog Outputs 3-Digital Inputs Required Access Level: None Analog Input List Screen The Analog Input List screen is a board-byboard view of the current ERC-1000 temperature sensor assignments. The title line consists of the board number and screen title. Each data line describes a sensor as follows: its board-channel number, the number of logical inputs to which the sensor is assigned, the sensor type, the user-defined sensor name, and a number, on the right, representing the raw data counts from the analog input card. (This number does not necessarily indicate the actual temperature, pressure, or kw it is used for Danfoss/ECI troubleshooting and checking general sensor operation). Sensor types: 1) Lo-T 2) Pres 3) kw 4) Lite 5) Hi-T 6) Leak 7) 0-10V Analog Output List Screen The Analog Output List screen is a board-byboard view of the current ERC-1000 variablespeed fan control assignments. The title line consists of the board number and the screen title. Each data line describes a control output as follows: its board-channel number, the output type, the user-defined name of the associated HVAC system. Along the right side of the screen are the raw data counts for the sensors. This information is useful for troubleshooting and verification of output operation. Board>1 Analog Outputs 1-1 VSpd Fan Fan Main Hvac Unit 1 030 1-2 VSpd Fan Fan Vestibule Heater 100 1-3 Comprsr Spd RACK A 000 1-4 unused 000 1-5 unused 000 1-6 unused 000 1-7 unused 000 1-8 unused 000 ** ** Required Access Level: None Board>1 Analog Inputs 1-1 1 LO-T SENSOR 1-1 54 1-2 1 LO-T SENSOR 1-2 128 1-3 1 LO-T SENSOR 1-3 255 1-4 1 LO-T SENSOR 1-4 255 1-5 1 LO-T SENSOR 1-5 255 1-6 1 LO-T SENSOR 1-6 255 1-7 1 LO-T SENSOR 1-7 255 1-8 1 LO-T SENSOR 1-8 255 Required Access Level: None 129
Digital Input List Screen The Digital Input List screen is a board-byboard view of the current ERC-1000 airflow sensor assignments. The title line consists of the board number and screen title. Each data line describes an airflow sensor as follows: its board-channel number, the sensor type, the user-defined sensor name, and a status indicator of the digital input (0=open, 1=closed). Board>1 Digital Inputs 1-1 Airflow In HVAC UNIT #1 0 1-2 Phase Loss HVAC UNIT #1 0 1-3 NsetBk HVAC UNIT #1 0 1-4 NsetBk Ovr HVAC UNIT #1 0 1-5 unused 0 1-6 unused 0 1-7 unused 0 1-8 unused 0 ** ** Digital Output List Screen The Digital Output List screen is a board-byboard view of the current ERC-1000 relay assignments. The title line consists of the board number and screen title. Each line describes a relay as follows: its board-channel number; the number of logical outputs to which the relay is assigned, the type of output to which the relay is assigned (HVAC system stage or Time-of-Day output), the userdefined HVAC unit or Time-of-Day output name associated with the relay, the normal state of the relay, and the number of times the relay is being called on. If a relay is in either a soft or hard override, the status is shown as: OV = hard override (a switch on the relay board is set) ov = soft override (relay has been overridden in the software) Required Access Level: None Board>1 Digital Outputs 1-1 1 AC1-FOOD SECTION EON 0 1-2 1 AC2-FOOD SECTION EON 0 1-3 1 AC3-FOOD SECTION EON 0 1-4 1 HR1-FOOD SECTION EON 1 1-5 1 HR2-FOOD SECTION EON 1 1-6 1 HR3-FOOD SECTION EON 0 1-7 1 AH1-FOOD SECTION EON 0 1-8 1 AH2-FOOD SECTION EON 0 ** ** Required Access Level: None 130
Access Codes Screen The Access Codes screen allows you to redefine the Level-1 and Level-2 access codes of your ERC-1000. Level-2 access is required to change these data fields. IMPORTANT The security of the ERC-1000 environmental control system DEPENDS on the proper use and discretionary distribution of its access codes! If at any time you think that the SECURITY of your system has been COMPROMISED and is at risk of malicious tampering, IMMEDIATELY CHANGE these CODES. Access Codes Level 1 1234 Level 2 9876 Required Access Level: 2 System Configuration Menu The System Configuration Menu is selected from the System Menu. It is the Table of Contents for the system-related functions. Miscellaneous Parameters Screen The Miscellaneous Parameters screen enables you to set the communications ID number to indicate temperature units (C = Celsius, F = Fahrenheit), to specify a logging interval (in seconds), to specify the number of holidays (maximum of eight), and to provide a power up interstage delay for outputs. The baud rate selected is indicated as 1200 or 2400. The maximal logging period is the calculated amount of time that each log can be. This value may change, depending on the amount of sensors and analog outputs used in the system. Miscellaneous Communication ID 001 Temp units F Line Freq 60H Logging interval 0015 Size 165k Number of Holidays 03 (Max 16) Powerup interstage delay 05 Sec Baud 1200 Maximum Logging Period 10 hrs Required Access Level: 1 System Config 1-Miscellaneous 4-Master Clear 2-Anlg Input Config 3-Holiday Schedule Required Access Level: None 131
Analog Input Configuration The Analog Input Configuration screen allows the user to modify the normal low temperature board configuration (-30 to + 97 F) to high temperature (0 to +255 F). Select the board desired and press [ENTER] to toggle from Lo-T to Hi-T. NOTE To use the high temperature operation, a specially calibrated high temperature card must be used. Other types of inputs are identified as : Lo-P, Hi-P, kw, 10V. These types are not changeable from this screen and are only displayed for identification purposes. Anlg Input Config Brds 1: Lo-P 2: Lo-T 3: Lo-T 4: Lo-T 5: Lo-T 6: 10V 7: Lo-T 8: Lo-T Holidays Screen The Holidays screen allows you to enter names and dates for up to sixteen holidays. The actual number of holiday fields displayed on this screen corresponds with the value of the Number of Holidays field on the System Configuration screen. Holiday names can be up to twelve characters in length. Holiday Schedules NEW YEARS 01-01-00 EASTER 04-12-00 CHRISTMAS 12-25-00 ** ** Required Access Level: 1 132
Master Clear Screen This screen allows either a soft reset or master clear from the keypad. To use either function, press [ENTER] and use the up and down arrows to select Reset, Master Clear or No Action, then press [ENTER] to accept. When this screen is exited, the desired function occurs within a few seconds. The reset is the same as if the power was turned off and back on again. A master clear clears ALL the memory and restores default parameters. CAUTION A MASTER CLEAR DESTROYS ALL DATA. USE THIS FEATURE AS A LAST RESORT. Master Clear Select the Reset Function: No Action Required Access Level: 2 133
TROUBLESHOOTING If the Control not Configured screen appears in the display, it is an indication that the ERC-1000 unit has one of the following conditions: 1. The unit is new and has never been configured or programmed. (Normal) 2. The internal Watchdog circuit has received non-conforming internal data and has initiated a complete reset (master clear). (Probably due to faulty data in its memory.) 3. The unit has lost its memory. (Check the battery.) Master Clear Procedures IMPORTANT Invoking the master clear function destroys all existing data. 1. Remove the metal plate from the ERC- 1000 door. 2. Place a piece of thin non-conductive material between the battery and the retaining clip on top of battery. 3. Turn switch OFF (see Figures 5, 7, and 8 in the Appendix D). 4. Leave the unit de-powered for a minimum of three minutes. 5. Turn switch ON and remove material from under the battery clip. 6. The following screen should then appear in the display: ECI ERC-1000 SOFTWARE VER. X.XX ***CONTROL NOT CONFIGURED*** Enter Access Code: _ ERC-1000 Power Transformer connection terminals, fuses, and an ON/OFF switch are located on the CPU Board, which is behind the metal plate on the door of the unit (see Figures 5, 7, and 8 in Appendix D). Checkpoints The terminals use a 12VAC supply for the CPU Board and are fused with a 2A fuse. Troubleshooting Procedure 1. Make sure that the power switch on the CPU Board is turned on. 2. Check voltage through the fuses: a. Set meter for AC voltage. b. Read power terminal #2 (lower) to bottom side of fuse; voltage should read 12VAC. Serial Communications Problems 1. Check for 12VAC on all serial modules and relay boards. 2. Check for polarity of all communications wiring. 3. Unhook all communications wires from the PSI connector: a. If the serial LED on the PSI card blinks, the problem is in the modules. b. If the serial LED on the PSI card does not blink, check the cable connections from the CPU to the PSI card. Either the CPU or the PSI card is at fault. 4. If the problem is in one of the modules, unhook all communications wiring to the modules and begin wiring them back in, one at a time, checking the communications LEDs, until the bad module is located. 134
Temperature Sensors Procedure 1. Without a sensor attached: Measure the voltage between sensor # and common terminals on the module; the voltage should read 5VDC. 2. With a sensor attached: Measure the voltage between sensor # and the common terminals on the module. Using the equation below, or the conversions in Table 20, determine if the sensor reading in the display agrees with the measured reading. Pressure Transducers Procedure 1. Measure the voltage between +12V terminal and the common terminals on the module; the voltage should read 13-15VDC. 2. With the transducer attached: Measure the voltage between sensor # and common terminals on the module. Using the equation below, or conversion Table 18 or Table 19, determine if the pressure reading in the display agrees with the measured reading. Temperature to Voltage Equation: Temperature = (V measure 2.554) x 180 For example If the measured voltage is 2.87VDC, using the above calculation, the equivalent temperature would be 56.88 degrees, which would be rounded to 57 degrees. 3. If calculated temperature does not agree, the ERC-1000 is at fault. If other circuits are reading correctly, the input module may be bad. Check sensor offsets. a. A shortened sensor or shorted wire run reads a low voltage (less than one VDC) and displays a temperature of ( 30 F, or 0 F if it is on a high temp module). b. An open sensor or open wire run reads 5VDC and displays a temperature of 97 F (or 255 F if it is on a high temperature module). Pressure to Voltage Conversion Equation: Suction Pressure = (V measured 1) x 20 Head Pressure = (V measured 1) x 100 3. If calculated pressure does not agree, the ERC-1000 is at fault. If other circuits are reading correctly, the input module may be bad. Check the sensor offsets: a. If the reading is 0VDC, the white wire or transducer is shorted or the black/ red wires may be open. b. If the reading is 12VDC or greater, the transducer is defective. c. If the calculated pressure agrees with the display, the transducer is out of calibration. If the transducer is only out less than +/- 5lbs., the transducer offsets can be used to correct the reading. If the transducer is off more than +/- 5lbs., replace the transducer. 135
Serial Relay Board Failure (8 Channel Digital Output) A red blinking LED on each relay board indicates normal communication status. If a red LED is not blinking, note the information below about normal communication. 1. 12VAC power must be assigned to the relay board. 2. The 1 amp, 12VAC power fuse on the relay must be good. A bad fuse does not allow a relay to energize or light the red LED. 3. The relay must be assigned correctly in the program. 4. Normally Open and Normally Closed contacts must be connected correctly. Check the 3 amp, 250VAC fuse on the common leg of each relay. 5. You must override the relay operation. The red LEDs indicate that the relay is energized. Blinking yellow LEDs indicate that the relay is in an override state (i.e., either energized or de-energized). NOTE When a relay board fails, all relays fail to the closed position. 16 Channel Analog Input Module 1. Be sure channel jumpers are set correctly for the input in use. (Refer to Figures 25 and 26 in Appendix D.) 2. Be sure the sensors are connected correctly (see sensor troubleshooting section above). 3. Be sure communications LED is blinking (see the Serial Communications Troubleshooting section). 4. Be sure 12VAC is supplied to the module. 5. Be sure the group jumpers (J1, J2, JX, and JY) are set correctly. 6. Be sure the ID switches are set correctly. Serial Input Module Failure (8 Channel Analog Input/Digital Input) A red blinking LED on each serial module shows normal communication status. If a red LED is not blinking, you should follow the list of checks below to ensure normal communication. 1. Verify communication status. If the red LED is not blinking, communication status is not normal. 2. Verify that the board has a unique address within its family. 3. Verify the input assignment in the program. 4. Verify 12VAC power to the module. 5. Verify the DC inputs with nothing attached. They should read: Temperature: Pressure: 0-10V: Digital Input: 5VDC 6VDC 10VDC 5VDC If the DC inputs are correct, check the configuration of the modules. If the module configuration appears correct, most likely the module is bad. Change the module. 136
APPENDIX A ERC-1000 CONVERSION TABLES 137
Table 18: Pressure to Voltage Conversion: SA-100D & SA-100A PRESSURE VOLTAGE PRESSURE VOLTAGE PRESSURE VOLTAGE 0 1.00 34 2.70 68 4.40 1 1.05 35 2.75 69 4.45 2 1.10 36 2.80 70 4.50 3 1.15 37 2.85 71 4.55 4 1.20 38 2.90 72 4.60 5 1.25 39 2.95 73 4.65 6 1.30 40 3.00 74 4.70 7 1.35 41 3.05 75 4.75 8 1.40 42 3.10 76 4.80 9 1.45 43 3.15 77 4.85 10 1.50 44 3.20 78 4.90 11 1.55 45 3.25 79 4.95 12 1.60 46 3.30 80 5.00 13 1.65 47 3.35 81 5.05 14 1.70 48 3.40 82 5.10 15 1.75 49 3.45 83 5.15 16 1.80 50 3.50 84 5.20 17 1.85 51 3.55 85 5.25 18 1.90 52 3.60 86 5.30 19 1.95 53 3.65 87 5.35 20 2.00 54 3.70 88 5.40 21 2.05 55 3.75 89 5.45 22 2.10 56 3.80 90 5.50 23 2.15 57 3.85 91 5.55 24 2.20 58 3.90 92 5.60 25 2.25 59 3.95 93 5.65 26 2.30 60 4.00 94 5.70 27 2.35 61 4.05 95 5.75 28 2.40 62 4.10 96 5.80 29 2.45 63 4.15 97 5.85 30 2.50 64 4.20 98 5.90 31 2.55 65 4.25 99 5.95 32 2.60 66 4.30 100 6.00 33 2.65 67 4.35 138
Table 19: Pressure to Voltage Conversion: SA-500D & SA-500A PRESSURE VOLTAGE PRESSURE VOLTAGE PRESSURE VOLTAGE 0 1.00 34 1.34 68 1.68 1 1.01 35 1.35 69 1.69 2 1.02 36 1.36 70 1.70 3 1.03 37 1.37 71 1.71 4 1.04 38 1.38 72 1.72 5 1.05 39 1.39 73 1.73 6 1.06 40 1.40 74 1.74 7 1.07 41 1.41 75 1.75 8 1.08 42 1.42 76 1.76 9 1.09 43 1.43 77 1.77 10 1.10 44 1.44 78 1.78 11 1.11 45 1.45 79 1.79 12 1.12 46 1.46 80 1.80 13 1.13 47 1.47 81 1.81 14 1.14 48 1.48 82 1.82 15 1.15 49 1.49 83 1.83 16 1.16 50 1.50 84 1.84 17 1.17 51 1.51 85 1.85 18 1.18 52 1.52 86 1.86 19 1.19 53 1.53 87 1.87 20 1.20 54 1.54 88 1.88 21 1.21 55 1.55 89 1.89 22 1.22 56 1.56 90 1.90 23 1.23 57 1.57 91 1.91 24 1.24 58 1.58 92 1.92 25 1.25 59 1.59 93 1.93 26 1.26 60 1.60 94 1.94 27 1.27 61 1.61 95 1.95 28 1.28 62 1.62 96 1.96 29 1.29 63 1.63 97 1.97 30 1.30 64 1.64 98 1.98 31 1.31 65 1.65 99 1.99 32 1.32 66 1.66 100 2.00 33 1.33 67 1.67 101 2.01 139
Table 19: Pressure to Voltage Conversion: SA-500D & SA-500A PRESSURE VOLTAGE PRESSURE VOLTAGE PRESSURE VOLTAGE 102 2.02 136 2.36 170 2.70 103 2.03 137 2.37 171 2.71 104 2.04 138 2.38 172 2.72 105 2.05 139 2.39 173 2.73 106 2.06 140 2.40 174 2.74 107 2.07 141 2.41 175 2.75 108 2.08 142 2.42 176 2.76 109 2.09 143 2.43 177 2.77 110 2.10 144 2.44 178 2.78 111 2.11 145 2.45 179 2.79 112 2.12 146 2.46 180 2.80 113 2.13 147 2.47 181 2.81 114 2.14 148 2.48 182 2.82 115 2.15 149 2.49 183 2.83 116 2.16 150 2.50 184 2.84 117 2.17 151 2.51 185 2.85 118 2.18 152 2.52 186 2.86 119 2.19 153 2.53 187 2.87 120 2.20 154 2.54 188 2.88 121 2.21 155 2.55 189 2.89 122 2.22 156 2.56 190 2.90 123 2.23 157 2.57 191 2.91 124 2.24 158 2.58 192 2.92 125 2.25 159 2.59 193 2.93 126 2.26 160 2.60 194 2.94 127 2.27 161 2.61 195 2.95 128 2.28 162 2.62 196 2.96 129 2.29 163 2.63 197 2.97 130 2.30 164 2.64 198 2.98 131 2.31 165 2.65 199 2.99 132 2.32 166 2.66 200 3.00 133 2.33 167 2.67 201 3.01 134 2.34 168 2.68 202 3.02 135 2.35 169 2.69 203 3.03 140
Table 19: Pressure to Voltage Conversion: SA-500D & SA-500A PRESSURE VOLTAGE PRESSURE VOLTAGE PRESSURE VOLTAGE 204 3.04 238 3.38 272 3.72 205 3.05 239 3.39 273 3.73 206 3.06 240 3.40 274 3.74 207 3.07 241 3.41 275 3.75 208 3.08 242 3.42 276 3.76 209 3.09 243 3.43 277 3.77 210 3.10 244 3.44 278 3.78 211 3.11 245 3.45 279 3.79 212 3.12 246 3.46 280 3.80 213 3.13 247 3.47 281 3.81 214 3.14 248 3.48 282 3.82 215 3.15 249 3.49 283 3.83 216 3.16 250 3.50 284 3.84 217 3.17 251 3.51 285 3.85 218 3.18 252 3.52 286 3.86 219 3.19 253 3.53 287 3.87 220 3.20 254 3.54 288 3.88 221 3.21 255 3.55 289 3.89 222 3.22 256 3.56 290 3.90 223 3.23 257 3.57 291 3.91 224 3.24 258 3.58 292 3.92 225 3.25 259 3.59 293 3.93 226 3.26 260 3.60 294 3.94 227 3.27 261 3.61 295 3.95 228 3.28 262 3.62 296 3.96 229 3.29 263 3.63 297 3.97 230 3.30 264 3.64 298 3.98 231 3.31 265 3.65 299 3.99 232 3.32 266 3.66 300 4.00 233 3.33 267 3.67 301 4.01 234 3.34 268 3.68 302 4.02 235 3.35 269 3.69 303 4.03 236 3.36 270 3.70 304 4.04 237 3.37 271 3.71 305 4.05 141
Table 19: Pressure to Voltage Conversion: SA-500D & SA-500A PRESSURE VOLTAGE PRESSURE VOLTAGE PRESSURE VOLTAGE 306 4.06 340 4.40 374 4.74 307 4.07 341 4.41 375 4.75 308 4.08 342 4.42 376 4.76 309 4.09 343 4.43 377 4.77 310 4.10 344 4.44 378 4.78 311 4.11 345 4.45 379 4.79 312 4.12 346 4.46 380 4.80 313 4.13 347 4.47 381 4.81 314 4.14 348 4.48 382 4.82 315 4.15 349 4.49 383 4.83 316 4.16 350 4.50 384 4.84 317 4.17 351 4.51 385 4.85 318 4.18 352 4.52 386 4.86 319 4.19 353 4.53 387 4.87 320 4.20 354 4.54 388 4.88 321 4.21 355 4.55 389 4.89 322 4.22 356 4.56 390 4.90 323 4.23 357 4.57 391 4.91 324 4.24 358 4.58 392 4.92 325 4.25 359 4.59 393 4.93 326 4.26 360 4.60 394 4.94 327 4.27 361 4.61 395 4.95 328 4.28 362 4.62 396 4.96 329 4.29 363 4.63 397 4.97 330 4.30 364 4.64 398 4.98 331 4.31 365 4.65 399 4.99 332 4.32 366 4.66 400 5.00 333 4.33 367 4.67 401 5.01 334 4.34 368 4.68 402 5.02 335 4.35 369 4.69 403 5.03 336 4.36 370 4.70 404 5.04 337 4.37 371 4.71 405 5.05 338 4.38 372 4.72 406 5.06 339 4.39 373 4.73 407 5.07 142
Table 19: Pressure to Voltage Conversion: SA-500D & SA-500A PRESSURE VOLTAGE PRESSURE VOLTAGE PRESSURE VOLTAGE 408 5.08 442 5.42 476 5.76 409 5.09 443 5.43 477 5.77 410 5.10 444 5.44 478 5.78 411 5.11 445 5.45 479 5.79 412 5.12 446 5.46 480 5.80 413 5.13 447 5.47 481 5.81 414 5.14 448 5.48 482 5.82 415 5.15 449 5.49 483 5.83 416 5.16 450 5.50 484 5.84 417 5.17 451 5.51 485 5.85 418 5.18 452 5.52 486 5.86 419 5.19 453 5.53 487 5.87 420 5.20 454 5.54 488 5.88 421 5.21 455 5.55 489 5.89 422 5.22 456 5.56 490 5.90 423 5.23 457 5.57 491 5.91 424 5.24 458 5.58 492 5.92 425 5.25 459 5.59 493 5.93 426 5.26 460 5.60 494 5.94 427 5.27 461 5.61 495 5.95 428 5.28 462 5.62 496 5.96 429 5.29 463 5.63 497 5.97 430 5.30 464 5.64 498 5.98 431 5.31 465 5.65 499 5.99 432 5.32 466 5.66 500 6.00 433 5.33 467 5.67 434 5.34 468 5.68 435 5.35 469 5.69 436 5.36 470 5.70 437 5.37 471 5.71 438 5.38 472 5.72 439 5.39 473 5.73 440 5.40 474 5.74 441 5.41 475 5.75 143
Table 20: Temperature to Voltage Conversion: TP-1 (C, L, H) TEMP. VOLTAGE TEMP VOLTAGE TEMP. VOLTAGE F C F C F C -30-34.4 2.387 2-16.7 2.565 34 1.1 2.743-29 -33.9 2.393 3-16.1 2.571 35 1.7 2.748-28 -33.3 2.398 4-15.6 2.576 36 2.2 2.754-27 -32.8 2.404 5-15.0 2.582 37 2.8 2.760-26 -32.2 2.410 6-14.4 2.587 38 3.3 2.765-25 -31.7 2.415 7-13.9 2.593 39 3.9 2.771-24 -31.1 2.421 8-13.3 2.598 40 4.4 2.776-23 -30.6 2.426 9-12.8 2.604 41 5.0 2.782-22 -30.0 2.432 10-12.2 2.610 42 5.6 2.787-21 -29.4 2.437 11-11.7 2.615 43 6.1 2.793-20 -28.9 2.443 12-11.1 2.621 44 6.7 2.798-19 -28.3 2.448 13-10.6 2.626 45 7.2 2.804-18 -27.8 2.454 14-10.0 2.632 46 7.8 2.810-17 -27.2 2.460 15-9.4 2.637 47 8.3 2.815-16 -26.7 2.465 16-8.9 2.643 48 8.9 2.821-15 -26.1 2.471 17-8.3 2.648 49 9.4 2.826-14 -25.6 2.476 18-7.8 2.654 50 10.0 2.832-13 -25.0 2.482 19-7.2 2.660 51 10.6 2.837-12 -24.4 2.487 20-6.7 2.665 52 11.1 2.843-11 -23.9 2.493 21-6.1 2.671 53 11.7 2.848-10 -23.3 2.498 22-5.6 2.676 54 12.2 2.854-9 -22.8 2.504 23-5.0 2.682 55 12.8 2.860-8 -22.2 2.510 24-4.4 2.687 56 13.3 2.865-7 -21.7 2.515 25-3.9 2.693 57 13.9 2.871-6 -21.1 2.521 26-3.3 2.698 58 14.4 2.876-5 -20.6 2.526 27-2.8 2.704 59 15.0 2.882-4 -20.0 2.532 28-2.2 2.710 60 15.6 2.887-3 -19.4 2.537 29-1.7 2.715 61 16.1 2.893-2 -18.9 2.543 30-1.1 2.721 62 16.7 2.898-1 -18.3 2.548 31-0.6 2.726 63 17.2 2.904 0-17.8 2.554 32 0.0 2.732 64 17.8 2.910 1-17.2 2.560 33 0.6 2.737 65 18.3 2.915 144
Table 20: Temperature to Voltage Conversion: TP-1 (C, L, H) TEMP. VOLTAGE TEMP VOLTAGE TEMP. VOLTAGE F C F C F C 66 18.9 2.921 98 36.7 3.098 130 54.4 3.276 67 19.4 2.926 99 37.2 3.104 131 55.0 3.282 68 20.0 2.932 100 37.8 3.110 132 55.6 3.287 69 20.6 2.937 101 38.3 3.115 133 56.1 3.293 70 21.1 2.943 102 38.9 3.121 134 56.7 3.298 71 21.7 2.948 103 39.4 3.126 135 57.2 3.304 72 22.2 2.954 104 40.0 3.132 136 57.8 3.310 73 22.8 2.960 105 40.6 3.137 137 58.3 3.315 74 23.3 2.965 106 41.1 3.143 138 58.9 3.321 75 23.9 2.971 107 41.7 3.148 139 59.4 3.326 76 24.4 2.976 108 42.2 3.154 140 60.0 3.332 77 25.0 2.982 109 42.8 3.160 141 60.6 3.337 78 25.6 2.987 110 43.3 3.165 142 61.1 3.343 79 26.1 2.993 111 43.9 3.171 143 61.7 3.348 80 26.7 2.998 112 44.4 3.176 144 62.2 3.354 81 27.2 3.004 113 45.0 3.182 145 62.8 3.360 82 27.8 3.010 114 45.6 3.187 146 63.3 3.365 83 28.3 3.015 115 46.1 3.193 147 63.9 3.371 84 28.9 3.021 116 46.7 3.198 148 64.4 3.376 85 29.4 3.026 117 47.2 3.204 149 65.0 3.382 86 30.0 3.032 118 47.8 3.210 150 65.6 3.387 87 30.6 3.037 119 48.3 3.215 151 66.1 3.393 88 31.1 3.043 120 48.9 3.221 152 66.7 3.398 89 31.7 3.048 121 49.4 3.226 153 67.2 3.404 90 32.2 3.054 122 50.0 3.232 154 67.8 3.410 91 32.8 3.060 123 50.6 3.237 155 68.3 3.415 92 33.3 3.065 124 51.1 3.243 156 68.9 3.421 93 33.9 3.071 125 51.7 3.248 157 69.5 3.426 94 34.4 3.076 126 52.2 3.254 158 70.0 3.432 95 35.0 3.082 127 52.8 3.260 159 70.6 3.437 96 35.6 3.087 128 53.3 3.265 160 71.1 3.443 97 36.1 3.093 129 53.9 3.271 161 71.7 3.448 145
Table 20: Temperature to Voltage Conversion: TP-1 (C, L, H) TEMP. VOLTAGE TEMP VOLTAGE TEMP. VOLTAGE F C F C F C 162 72.2 3.454 194 90.0 3.632 226 107.8 3.810 163 72.8 3.460 195 90.6 3.637 227 108.3 3.815 164 73.3 3.465 196 91.1 3.643 228 108.9 3.821 165 73.9 3.471 197 91.7 3.648 229 109.5 3.826 166 74.5 3.476 198 92.2 3.654 230 110.0 3.832 167 75.0 3.482 199 92.8 3.660 231 110.6 3.837 168 75.6 3.487 200 93.3 3.665 232 111.1 3.843 169 76.1 3.493 201 93.9 3.671 233 111.7 3.848 170 76.7 3.498 202 94.5 3.676 234 112.2 3.854 171 77.2 3.504 203 95.0 3.682 235 112.8 3.860 172 77.8 3.510 204 95.6 3.687 236 113.3 3.865 173 78.3 3.515 205 96.1 3.693 237 113.9 3.871 174 78.9 3.521 206 96.7 3.698 238 114.5 3.876 175 79.5 3.526 207 97.2 3.704 239 115.0 3.882 176 80.0 3.532 208 97.8 3.710 240 115.6 3.887 177 80.6 3.537 209 98.3 3.715 241 116.1 3.893 178 81.1 3.543 210 98.9 3.721 242 116.7 3.898 179 81.7 3.548 211 99.5 3.726 243 117.2 3.904 180 82.2 3.554 212 100.0 3.732 244 117.8 3.910 181 82.8 3.560 213 100.6 3.737 245 118.3 3.915 182 83.3 3.565 214 101.1 3.743 246 118.9 3.921 183 83.9 3.571 215 101.7 3.748 247 119.5 3.926 184 84.5 3.576 216 102.2 3.754 248 120.0 3.932 185 85.0 3.582 217 102.8 3.760 249 120.6 3.937 186 85.6 3.587 218 103.3 3.765 250 121.1 3.943 187 86.1 3.593 219 103.9 3.771 251 121.7 3.948 188 86.7 3.598 220 104.5 3.776 252 122.2 3.954 189 87.2 3.604 221 105.0 3.782 253 122.8 3.960 190 87.8 3.610 222 105.6 3.787 254 123.3 3.965 191 88.3 3.615 223 106.1 3.793 255 123.9 3.971 192 88.9 3.621 224 106.7 3.798 193 89.5 3.626 225 107.2 3.804 146
Table 21: Dew Point to Voltage Conversion: DPS-1 at DPI Board, DR (+) to DW (-) DP VOLTAGE DP VOLTAGE DP VOLTAGE 0 2.694 34 2.959 68 3.224 1 2.701 35 2.967 69 3.232 2 2.709 36 2.974 70 3.240 3 2.717 37 2.982 71 3.247 4 2.725 38 2.990 72 3.255 5 2.733 39 2.998 73 3.263 6 2.740 40 3.006 74 3.271 7 2.748 41 3.013 75 3.279 8 2.756 42 3.021 76 3.286 9 2.764 43 3.029 77 3.294 10 2.772 44 3.037 78 3.302 11 2.779 45 3.045 79 3.310 12 2.787 46 3.052 80 3.318 13 2.795 47 3.060 81 3.325 14 2.803 48 3.068 82 3.333 15 2.811 49 3.076 83 3.341 16 2.818 50 3.084 84 3.349 17 2.826 51 3.091 85 3.357 18 2.834 52 3.099 86 3.364 19 2.842 53 3.107 87 3.372 20 2.850 54 3.115 88 3.380 21 2.857 55 3.123 89 3.388 22 2.865 56 3.130 90 3.396 23 2.873 57 3.138 91 3.403 24 2.881 58 3.146 92 3.411 25 2.889 59 3.154 93 3.419 26 2.896 60 3.162 94 3.427 27 2.904 61 3.169 95 3.435 28 2.912 62 3.177 96 3.442 29 2.920 63 3.185 97 3.450 30 2.928 64 3.193 98 3.458 31 2.935 65 3.201 99 3.466 32 2.943 66 3.208 100 3.474 33 2.951 67 3.216 147
Table 22: Dew Point to Voltage Conversion: DPS-1 at DPI Board, DP (+) to W (-) DP VOLTAGE DP VOLTAGE DP VOLTAGE 0 2.554 34 2.743 68 2.932 1 2.560 35 2.748 69 2.937 2 2.565 36 2.754 70 2.943 3 2.571 37 2.760 71 2.948 4 2.576 38 2.765 72 2.954 5 2.582 39 2.771 73 2.960 6 2.587 40 2.776 74 2.965 7 2.593 41 2.782 75 2.971 8 2.598 42 2.787 76 2.976 9 2.604 43 2.793 77 2.982 10 2.610 44 2.798 78 2.987 11 2.615 45 2.804 79 2.993 12 2.621 46 2.810 80 2.998 13 2.626 47 2.815 81 3.004 14 2.632 48 2.821 82 3.010 15 2.637 49 2.826 83 3.015 16 2.643 50 2.832 84 3.021 17 2.648 51 2.837 85 3.026 18 2.654 52 2.843 86 3.032 19 2.660 53 2.848 87 3.037 20 2.665 54 2.854 88 3.043 21 2.671 55 2.860 89 3.048 22 2.676 56 2.865 90 3.054 23 2.682 57 2.871 91 3.060 24 2.687 58 2.876 92 3.065 25 2.693 59 2.882 93 3.071 26 2.698 60 2.887 94 3.076 27 2.704 61 2.893 95 3.082 28 2.710 62 2.898 96 3.087 29 2.715 63 2.904 97 3.093 30 2.721 64 2.910 98 3.098 31 2.726 65 2.915 99 3.104 32 2.732 66 2.921 100 3.110 33 2.737 67 2.926 148
APPENDIX B WARRANTY, REPLACEMENT PARTS, AND REPAIR PROCEDURE 149
Warranty Information Danfoss/ECI (Danfoss Inc./Energy Controls International) offers the following warranty for its products: Danfoss/ECI will correct any defect in workmanship or material for 15 months from the date of shipment from Danfoss/ECI. The corrective measures are limited to repair or replacement of the unit, which is Danfoss/ECI s option. The warranty period on TP-2 temperature sensors is three years from the date of shipment from Danfoss/ECI. This limited warranty does not apply to equipment that has been subjected to negligence, accident, or damage by operation, maintenance, or storage or abnormal use or service. This limited warranty does not cover reimbursements for transportation, removal, installation, or repair or replacement, except as may otherwise be specifically agreed upon in writing by Danfoss/ ECI. The foregoing is in lieu of all other warranties expressed or implied, and all other obligations or liabilities whether arising under contract, negligence or otherwise, on the part of Danfoss/ ECI. In no event shall Danfoss/ECI be liable for consequential or special damages, including, but not limited to, loss of use, loss of income, loss of profit or cost of replacement. Trademark Information Belden is a U.S. registered trademark of Belden Inc. 150
Table 23: Replacement Parts List PART NUMBER DESCRIPTION 5401695400 Display Assembly (backlit) 5401623400 Keypad Assembly 5101690400 CPU Board (Rev. 11) 1761706800 2A, 250 Volt fuse, CPU Board 4464401502 ERC/EC Manual 01706400 Serial Analog Input Temperature Module (TP-1) 01706401 Serial Analog Input Hi Temperature Module (TP-1H) 01706402 Serial Analog Input Pressure Module 01706404 Serial Analog Input 0-10V Module 01706408 Serial Analog Output 0-10V Module 01706403 Serial Digital Input Module 01706420 Serial Input 16 Channel Module 01706500 High Voltage Digital Input Board 20087400 Serial Relay Board SERIAL UG1 Parallel to Serial Upgrade Kit 01687400 Direct Connect Adapter for CPU Board (9-Pin) 01665400 Modem Adapter (2.0+) RJ-11 CONN (RJ-11 Connectors/2 per kit) 60028400 Phone Cable Tester CC/26001000-30 F to 97 F Nickel-Plated Low Temperature Probe (Supersedes obsolete part # s TP-1L, TP-1C) CC/26002000 0 F to 255 F Nickel-Plated High Temperature Probe (Supersedes obsolete part # TP-1H) 0167640S 0-10V RH Space Mount Enclosure 0167640D 0-10V RH Duct Mount Enclosure 0167640A 0-10V RH Outdoor Mount Enclosure DPS-1 Dew Point Sensor 12847400 Dew Point Sensor Enclosure with DPS and TP-1C 12810400 Dew Point Interface Board AFS-1 Air Flow Switch 01660400 Analog Photo Cell 20125400 NoSweat-8 Channel Base Unit Anti-Sweat Control Device 20125401 NoSweat Expansion Cabinet (w/out receiver & driver) 5420125400 NoSweat-Add-on Load Control Point (in groups of 2) 1761709500 ATHENA Replacement Fuse/80A 1761709501 ATHENA Replacement Fuse/60A 1761709502 ATHENA Replacement Fuse/40A 3873800300 ATHENA Analog Anti-Sweat Control/80A 3873800100 ATHENA Analog Anti-Sweat Control/60A 3873800200 ATHENA Analog Anti-Sweat Control/40A 5101741400 0-10V to 4-20mA Conversion Module 01719100 (0-100 PSI, Suction) 25 lead 01719101 (0-500 PSI, Discharge) 25 lead TF-5 115/230 to 12VAC Transformer (30VA) 12V Transformer for CPU CC/01731400 115/230 to 12VAC Transformer (54VA) 12V Transformer for I/O (Supersedes obsolete part # TF-6) MOD-8 Modem U.S. Robotics 33.6k or 56k Sportster 151
Repair Procedure If any part of your system requires repair, please use the following procedure: 1. Call Danfoss/ECI at 410-403-4000, ext. 3289 between 8:30 A.M. and 4:30 P.M. Eastern time for a Repair Order (R.O.) Number. 2. Have the following information ready: a. Purchase Order # for each unit to be repaired. b. As much information as possible regarding the nature of the equipment problem c. Serial number of unit/date of purchase d. Previous repair history, if applicable 3. Send impaired item to: Danfoss/ECI 10946 Golden West Drive, Suite 130 Hunt Valley MD 21031 Advance Shipment 1. a) If necessary, Danfoss/ECI will ADVANCE SHIP the replacement component or parts, under certain circumstances, provided that a Purchase Order # is issued for such. The customer will bear responsibility for excess freight charges and agrees to return the defective component or parts WITHIN 15 DAYS upon receipt of the Advance Shipment. b) After Danfoss/ECI receives the defective component/system/parts, they will be repaired and upgraded to current operational standards (i.e., Danfoss/ECI will restore them to LIKE NEW condition). The customer will be billed for this restoration work at the Standard Repair Charge rate. 4. The R.O. Number should be clearly marked on the outside of the shipping carton. Include all applicable paperwork with the shipment INSIDE the carton. 5. The warranty on repaired units is 90 days from the date of shipment from Danfoss/ ECI. IMPORTANT Danfoss/ECI will be relocating to the Danfoss Inc. Air-Conditioning & Refrigeration Division site on or around April 1, 2001. Please note that from this time forward, all inquiries regarding repair to equipment should be made to: Impaired items should be shipped to: Danfoss Inc. Phone (410) 931-8250 Danfoss Inc. Air-Conditioning & Refrigeration Division 7941 Corporate Drive Baltimore, MD 21236-4925 152
APPENDIX C FIELD WIRING REFERENCE GUIDE SERIAL MODULE CONFIGURATION CT SELECTION, CONNECTION AND SCALE FACTOR COMPUTATIONS 153
Table 24: Field Wiring Reference Guide Product Serial Loop Communication Wiring for Serial Modules Serial Loop Power Wiring for Serial Modules Wiring Guide Maximum length: 2000 feet 2 wire, 18 awg, unshielded twisted pair; Belden #8461 or equivalent Serial Relay Board: Maximum length: 50 feet 2 wire, 18 awg, unshielded twisted pair; Belden #8461 or equivalent RC-2000 to RC-2000 (RS-485) RC-2000 to CSC or DCU: (Double Termination) RC-2000 to CSC (TP78) or DCU (FTT-10) RC-2000 to DCU (FTT-10): (Single Termination) RC-2000 to RC-1000 or EC-1000 or Modem Sensor Wiring: Temperature, Thermistor, kw, Digital Inputs, and Analog Outputs Relative Humidity, Pressure Transducer and 0-10 Volt input wiring Dew point, Refrigerant Leak Sensor Wiring Serial Modules: Maximum length: 100 feet 2 wire, 18 awg, unshielded twisted pair; Belden #8461 or equivalent Maximum length: 1000 feet 2 wire, 18 awg, shielded twisted pair; Belden #8760 or equivalent (see Note 1) Maximum length = 8800 feet; double termination 2 wire, 16 awg, unshielded twisted pair; Belden #8471 or equivalent Maximum length = 1600 feet; free topology single termination 2 wire, 16 awg, unshielded twisted pair; Belden #85102 (plenum) 2 wire, 16 awg, unshielded twisted pair; Belden #8471 (non-plenum) (see Note 2) Maximum length = 100 feet 6 conductor flat phone cable; G-C Thorson 30-9965 or equivalent Maximum length = 500 feet 2 wire, 18 awg, shielded twisted pair; Belden #8760 or equivalent (see Note 1) Maximum length = 500 feet 3 wire, 18 awg, shielded wire; Belden #8770 or equivalent Maximum length = 500 feet 4 wire, 18 awg, shielded wire; Belden #9418 or equivalent NOTE 1: Lengths and signal strength may be increased by using a Danfoss/ECI RS485 Repeater Board, Part # 20104400. NOTE 2: Length and signal strength may be increased by using a Danfoss/ECI DCU/FTT-10 Repeater Board, Part # 20055400. 154
Serial Module Configuration This module can be set up for the following configurations by changing the Jumpers and Resistor packages as detailed below in Table 25, and Drawing 23. Table 25: Serial Module Configuration MODULE TYPE J1 J2 J3 J4 RS-1 RS-8 PART NUMBER SAI8/Reg. Temp. OFF OFF OFF OFF IN OUT CC/01706400 (-30 F to 97 F) SAI8/High Temp. OFF OFF OFF ON IN OUT CC/01706401 (0 F to 255 F) SAI8 2.25K Temp. OFF ON ON OFF IN OUT CC/01706405 (TP-2L,-30 F to 97 F) SAI8/5K Temp. OFF OFF ON ON IN* OUT CC/01706410 (0 F to 255 F) SAI8/10K Temp. OFF OFF ON ON IN OUT CC/01706406 (TP-2H, 0 F to 255 F) SDI8/Digital Input ON ON OFF OFF IN OUT CC/01706403 SAI8/Pressure (1-6V) ON OFF ON OFF OUT IN CC/01706402 SAI8/0-10V OFF OFF ON OFF OUT IN CC/01706404 SAI8/4-20mA ------------------Not Field Changeable-------------- CC/01706407 (Special) Notes: RS-1 is a 2.2K resistor network designated with 1-222 (note RS-1 pin location in the drawing below). RS-8 is a 8.2K resistor network designated with 1-822 (note RS-8 pin location in the drawing below). *For 5K Temperature, a second 2.2K is attached to RS-1. 2.25K, 5K, 10K Temperature Modules require capacitor C5 to be cut out. Firmware ID Code is 71296. Analog output is a 4 channel module that is not interchangeable (Part Number: CC/01706408). IMPORTANT When installing the 2.2K or 8.2K resistor networks, the silk-screen label faces toward the bottom of the module, and the extra prong overhangs to the right side. 12VAC 12VAC Serial In Common Inputs J1 J2 J3 J4 FIRMWARE DIP SWITCH RS1 C5 C5 Capacitor Dip Switch RS-1 Pin Location Jumpers J1-J4 RS8 RS-8 Pin Location Commons 12 VDC Drawing 23: Serial Module Configuration 155
CT Selection, Connection & Scale Factor Computations CAUTION TO AVOID POTENTIAL EXPLOSION WHEN INSTALLING OR SERVICING A CURRENT TRANSFORMER ON A LIVE CONDUCTOR: ALWAYS short the secondary wires to each other prior to connecting or disconnnecting when installing or servicing a CT on a live conductor. The CT strives to output the ratioed current, and eventually it will break down the insulation or air between the terminals. AN EXPLOSION MAY OCCUR! Selection, connection, and scale factor computations are listed below. SYSTEM Table 26: CT, Connection, and Scale Factor Values APPLICATION PART NUMBER CT NUMBER VOLTAGE MEASUREMENT SCALE FACTOR 208V, 3p, 3w Rack CC/20106400 2 208 phase-phase.36 x (CT Max*) 480V, 3p, 3w Rack CC/20106401 2 480 phase-phase.83 x (CT Max*) 208V, 3p, 4w House CC/20106402 3 120 phase-neutral.36 x (CT Max*) 480V, 3p, 4w House CC/20106403 3 277 phase-neutral.83 x (CT Max*) *NOTE: The CT Max is the first number in a standard CT ratio rating (i.e., 1600:5, use 1600). CT part number, ratio and application information are listed below. PART NUMBER RATIO APPLICATION CT-2 CT-3 CT-4 CT-5 CT-8 CT-14 CT-15 15RT101 15RT500 Multi Ratio (Split Core) 1600, 2000, 2500:5 Split Core 1600:5 Torroidal 500:5 Torroidal 300:5 Torroidal 400:5 Split Core 600:5 Split Core 800:5 Torroidal 100:5 Torroidal 50:5 NOTE: Many other sizes of the torroidal CTs are available upon request. House kw House kw Rack kw Rack kw Rack kw House kw House kw Rack kw Rack kw 156
APPENDIX D INSTALLATION DIAGRAMS 157
158
Index Numerics 16 channel analog input module troubleshooting 136 A access codes screen 131 alarm dial out menu 121 alarm dial out/miscellaneous 128 alarm log screen 115 alarm phone numbers screen 122 alarm setup menu 123 ambient limits 2 analog anti-sweat heaters control configuration screen 99 name and sensor name screens 99 setpoints screen 99 status screen 99 analog input configuration 132 analog input list screen 129 analog light level control 53 analog output list screen 129 anti-sweat control analog 51 digital 51 anti-sweat heaters menu 97 ASH log screen 113 AUTO 20 aux outputs menu 90 B backup battery 16 C channel assignment capabilities 54 communication connections 9 communication wire size and length 36 control capability/capacity 3 CPU Board 16 CPU board dip switch settings 16 current transformers split core CTs 38 toroidal CTs 38 D daily power log screen 117 data access and entry 43 date & time screen 121 daylight savings screen 121 demand systems configuration 102 menu 100 priority names 102 sensor names 102 setpoints screen 101 status screen 100 system names 102 demand systems control 52 digital anti-sweat heaters control configuration screen 98 name screen 98 sensor names screen 98 setpoints screen 98 status screen 97 digital input list screen 130 digital input override screen 120 digital light level control 53 digital output list screen 130 digital output override screen 119 dimensions 2 display and rubber keypad 15 DNRGZ 20 E eight channel I/O system capability 17 ENRGZ 20 ERC-1000 vs EC-1000 3 event log screen 116 H high voltage interface board 25 holidays screen 132 hourly power log screen 116 house power monitoring 37 HVAC cycles log screen 111 HVAC log menu 110 HVAC runtimes log screen 112 HVAC unit configuration screen AC/HT delay 71 AH/DP lockout 71 airflow control 71 standard 71 variable speed fan 71 airflow switch 71 damper-dewpt 71 damper-relhum 71 economizer 72 fan EON/EOFF 72 heat reclaim 71 humidity control 71 master holiday schedule 72
master occupied schedule 72 monitor fan amps 72 night setback override switch 71 night setback switch 71 number of HVAC units 71 phase loss input 71 HVAC unit control features configuration 45 discharge sensor setpoint 46 fan control 47 lockout 46 parameters 45 plenum airflow sensing 46 scheduling 45 space temperature control 46 unoccupied schedule 47 HVAC unit names screen 70 HVAC unit sensor names screen 70 HVAC unit status screen 61 HVAC units alarm setup 124 HVAC units menu 60 HVAC units setpoints screen AC relays 64 AFL inputs 65 AH relays 65 alarm relay 65 amp sensor 66 damper output 66 damper-dew point control screen cutout 68 damper-relative humidity control screen cutout 68 day setpoints 64 DCH snsrs 65 delay 64 DP relays 64 EAT dewp snsr 66 EAT RH snsr 66 EAT temp snsr 66 econo rly 65 economizer 64 fan control 66 fan output 64 fault input 64 FN HI/LO Dly 66 FN relays 65 Hi Al 64 Hi-speed fan @ 66 HR flush time 66 HR relays 65 INS DP snsr 65 INS RH snsr 65 Lo Al 64 Lout 64 night setpoints 64 NS Ovr input 65 Nsetbk input 65 occupied schedule 66 OUT snsr 65 OUTS RH snsr 65 PHA input 65 reset relay 64 RTN snsrs 65 SC constant 66 SPC snsrs 65 switchover relay 64 variable speed fan control screen cutout 68 I I/O connections 4 I/O list menu 129 I/O log analog & digital inputs & outputs 117 I/O log menu 117 I/O module types 17 input/output modules 18 36 installation communication connections 9 I/O connections 4 modem command line settings 10 modem dip switch settings 10 modem installation 9 mounting guidelines 4 PSI board 6 relay boards & module serial connections 6 RS485 repeater board 12 RS485 repeater board configuration options 13 serial relay boards & module power connections 7 system power connection 5 TF-16 & TF-6 transformer wiring 8 unpacking 4 installation instructions 4 14 installation programming sequence 42 K keypad functions 43 L load chart 8 log menu 110 logic statement names 96 logic statements alarm & event 94 clear latch input 94
input statements and, or, xor 93 logic is on from 95 menu 90 message 94 outputs NRM,CHG,SHD, MTY,LCH 94 scale factor 94 time delay 94 type of input 94 logic statements alarm setup 126 logic statements clear latch 96 logic statements configuration 97 logic statements sensor names 96 logic statements setpoints screen 92 logic statements status screen 91 logic system features 50 M main menu 60 making cables 11 master clear procedures 134 master clear screen 133 memory check 57 menu screen overview 59 miscellaneous parameters screen 131 modem command line settings 10 modem dip switch settings 10 modem installation 9 mounting guidelines 4 N note log 115 O override log 118 override menu 117 P power log menu 116 power monitoring 37 41 power requirements 2 power supply specifications 15 power system environments 37 power troubleshooting 134 pressure transducers troubleshooting 135 programming and interrogating the ERC-1000 42 59 PSI board 6 PSI board function 17 R rack alarm setup 125 rack configuration screen 85 auxiliary setpoints 85 compr relay energized on 86 desuperheater control 86 head pressure override 86 heat reclaim 85 monitor comprsr oil pres 86 oil failure input 86 phase loss input 85 polarity of switchover relay 86 refrigerant liquid level 85 run verification 85 six or twelve condenser fans 86 split condenser 86 TD head pressure control 86 two stage rack control 86 variable speed 85 rack control features configuration 48 suction & head pressure 48 rack control menu 74 rack desuperheater setpoints screen 89 rack log screen 114 rack menu 74 rack monitor names screen 89 rack monitoring points setpoints screen 88 rack name screen 84 rack overview screen 84 rack power monitoring 38 rack sensor name screen 84 rack sepoints screen min on & min off 77 rack setpoints screen alarm delay 77 alarm relay 78 ambient sensor 78 analog liq. lev. snsr 78 aux cut in & aux cut out 77 aux enable input 79 capacity 79 compressor relay assignments 79 condensing pres snsr 78 control gain 77 cut in & cut out 77 derivative gain 77 head override 77 high alarm & low alarm 77 HR override delay 77 HR override diff 77 HR override level 77
HR override relay 78 liquid level alrm 77 liquid level input 78 min ambient temp 78 min diff oil pres 80 oil failure input 79 oil pres 80 phase loss input 79 pres sensor 78 run inpt 80 seq or alt 78 shutdown 77 split condenser action 78 sump pres 80 temp differential cut in 78 unloaders 79 variable speed 80 analog output 80 associated low temperature rack 81 capacity 80 condenser fan relays 81 control relay 80 current sensor 81 fault input 81 freq sensor 80 max RPM 80 min RPM 80 power sensor 81 reset relay 80 run inpts A and B 81 run input 81 split condenser fan operation 81 sump pres snsr 80 switchover relay 81 rack status screen 75 relay boards & module serial connections 6 RH sensor installation requirements 29 power requirements 29 wiring 30 31 RS485 repeater board 12 RS485 repeater board configuration options 13 run time menu 110 S sample control system 1 satellite cycles log screen 113 satellite log menu 113 satellite runtimes log screen 113 satellite systems configuration screen 105 menu 103 names screen 105 sensor names screen 105 setpoints screen 104 status screen 103 satellite systems control 52 schedule programming 56 screen abbreviations 44 Seasons-4 SmartCoil 69 sensor input offset screen 120 serial 16 channel universal input board (SUI16) dual 8 mode operation 33 8 channel mode jumper 34 board address setup 33 board/channel type setup 34 channel jumpers 34 rev.3 input board 36 rev.5 input board setup 35 installation considerations 32 serial analog input module/8 channel (SAI8) 0-10V input range 27 installation considerations 27 module pressure range 27 module temperature range TP-1 27 module temperature range TP-2 27 sensor/input connections 28 serial communication connections 28 serial power connections 27 types of input 26 serial analog output module/4 channel (SAO4) communication connections 22 serial power connections 22 serial communication troubleshooting 134 serial communication wiring 36 serial digital input module/8 channel (SDI8) 23 communication connections 24 digital input connections 24 high voltage interface board 25 serial power connections 24 serial hardware 17 36 serial input module troubleshooting 136 serial relay board troubleshooting 136 serial relay boards & module power connections 7 software capabilities 60 133 specifications ambient limits 2 dimensions 2 power requirements 2 wiring 2 split core CTs 38 SR8 communication connections 19 control switches 20
features 18 indicator lights 19 installation considerations 18 output control connections 19 power connections 19 SR8 7500 series 21 system alarm setup 127 system amp draw 8 system configuration menu 131 system menu 121 system power connection 5 T temperature sensors troubleshooting 135 TF-16 & TF-6 transformer wiring 8 three-phase, four-wire systems 37 three-phase, three-wire systems 38 time of day output control 53 time of day outputs configuration screen 110 menu 106 names screen 109 setpoints screen 107 status screen 106 time of day sensor names screen 109 title screen 58 TOD log screen 113 TOD overrides 118 toroidal CTs 38 transformers 15 U unpacking 4 V variable ballast control 54 variable speed fan sequence of operation 69 W watt transducer two and one half element connections 41 watt transducer two element connections 39 40 watt transducers 37 White on Right rule 11 window/page approach to user interface 55 wiring 2
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