Product Description Full Voltage Starting Electric Fire Pump Controllers FTA1000

Transcription

1 Product Description Full Voltage Starting Electric Fire Pump Controllers FTA1000 Description Firetrol FTA1000 Full Voltage Fire Pump Controllers are intended for use with electric motor driven fi re pumps where the capacity of the power source permits full voltage starting. Full voltage is applied to the motor as soon as the controller is actuated. The controller monitors, displays and records fi re pump system information. Full voltage starting is simple and low cost and is preferred whenever the utility or emergency generator set will permit this type of starting. Approvals Firetrol fi re pump controllers are listed by Underwriters Laboratories, Inc., in accordance with UL218, Standard for Fire Pump Controllers, CSA, Standard for Industrial Control Equipment, and approved by Factory Mutual. They are built to meet or exceed the requirements of the approving authorities as well as NEMA and the latest editions of NFPA 20, Installation of Centrifugal Fire Pumps, and NFPA 70, National Electrical Code. Standard Features The following are included as standard with each controller: Voltage surge protector Main Disconnect Switch sized for connected motor horsepower and voltage Fire pump Circuit Breaker Motor contactor Emergency Manual Run Mechanism to mechanically close motor contactor contacts in an emergency condition Built-in Start and Stop push-buttons to bypass automatic start circuits Door mounted display/interface panel featuring a 40 Character Vacuum Fluorescent Display, Membrane Type User Control Push-buttons and easy to read LED Indicators Single handle Isolating Disconnect Switch/Circuit Breaker mechanism POWER ON LED PUMP RUN LED PHASE FAILURE LED PHASE REVERSAL LED LOW PRESSURE LED DELUGE OPEN LED INTERLOCK ON LED TRANSFER SWITCH NORMAL LED (If unit ordered with Automatic Power Transfer Switch) TRANSFER SWITCH EMERGENCY LED (If unit ordered with Automatic Power Transfer Switch) EMERGENCY ISOLATING SWITCH OFF LED (If unit ordered with Automatic Power Transfer Switch) Minimum Run Timer / Off Delay Timer Daylight Savings Time Option Weekly Test Timer Elapsed Time Meter Digital Pressure Display USB Host Controller and Port Solid State Pressure Transducer Data Log Event Log (3000 Events) True RMS Metering with simultaneous 3 phase display of amps and volts Disk Error message Disk Near Full message Pressure Error message Motor Over 320% message Local Start message Remote Start message Emergency Start message Fail To Start message Undervoltage message Overvoltage message High Speed Open Serial Communications Port NEMA Type 2 enclosure Suitable for use as Service Equipment

2 Specifications Electric Fire Pump Controllers FTA Main Fire Pump Controller The main fire pump controller shall be a factory assembled, wired and tested unit and shall conform to all the requirements of the latest edition of NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection and NFPA 70, National Electrical Code. The controller shall be listed by Underwriters Laboratories, Inc., in accordance with UL218, Standard for Fire Pump Controllers, CSA, and Canadian Standards Association CSA-C22.2, Standard for Industrial Control Equipment (culus), approved by Factory Mutual and approved by the City of New York for fire pump service. Starting Method The controller shall be of the combined manual and automatic type designed for: Full Voltage Starting Solid State Soft Starting Wye (Star)-Delta Open Transition Starting Wye (Star)-Delta Closed Transition Starting Part Winding Starting Primary Resistance Reduced Voltage Starting Autotransformer Reduced Voltage Starting of the fire pump motor having the horsepower, voltage, phase and frequency rating shown on the plans and drawings. The controller components shall be housed in a NEMA Type 2 (IEC IP11) drip-proof, wall mounted enclosure. Withstand Ratings (Short Circuit Current Ratings) All controller components shall be front mounted, wired and front accessible for maintenance. The minimum withstand rating of the controllers shall not be less than 100,000 Amps RMS Symmetrical at Volts*. If the available system fault current exceeds these ratings, the controllers shall be supplied with a withstand rating of 150,000 or 200,000 Amps RMS Symmetrical, as required. *Note: 100,000 Amp withstand rating not available in some larger horsepowers. Consult factory for details. Isolation Switch and Circuit Breaker The controller shall include a motor rated combination isolating disconnect switch/circuit breaker, mechanically interlocked and operated with a single, externally mounted handle. When moving the handle from OFF to ON, the interlocking mechanism shall sequence the isolating disconnect switch ON first, and then the circuit breaker. When the handle is moved from ON to OFF, the interlocking mechanism shall sequence the circuit breaker OFF first, and then the isolating disconnect switch. The isolating disconnect switch/circuit breaker shall be mechanically interlocked so that the enclosure door cannot be opened with the handle in the ON position except by a hidden tool operated defeater mechanism. The isolating disconnect switch/circuit breaker shall be capable of being padlocked in the OFF position for installation and maintenance safety, and shall also be capable of being locked in the ON position without affecting the tripping characteristics of the circuit breaker. The controller door shall have a locking type handle and three point cam and roller vault type hardware. The circuit breaker trip curve adjustment shall be factory set, tested and sealed for the full load amps of the connected motor. The circuit breaker shall be capable of being field tested to verify actual pick up, locked rotor, and instantaneous trip points after field installation without disturbing incoming line and load conductors. Operator Interface The fire pump controller shall feature an operator interface with user keypad. The interface shall monitor and display motor operating conditions, including all alarms, events, and pressure conditions. All alarms, events, and pressure conditions shall be displayed with a time and date stamp. The display shall be a 2- line, 20-character, vacuum fluorescent, dot matrix type designed to allow easy viewing from all angles and in all light conditions. The display and interface shall be NEMA rated for Type 2, 3R, 4, 4X, and 12 protection and shall be fully accessible without opening the controller door. The display and user interface shall utilize multiple levels of password protection for system security. A minimum of 3 password levels shall be provided. The display shall be capable of being programmed for any language. Ammeter/Voltmeter The fire pump controller operator interface shall be capable of displaying true RMS digital motor voltage and current measurements for all three phases simultaneously. Displays requiring pushbutton and selector switches to toggle between phases or current and voltage shall not be accepted. Voltage and current shall be measured by True RMS technology to provide the most accurate measurement for all sine waves, including nonsinusoidal waveforms. Average responding meters will not be accepted. Digital Status/Alarm Messages The digital display shall indicate text messages for the status and alarm conditions of: Motor On Sequential Start Time Minimum Run Time Local Start / Off Delay Time Remote Start Fail to Start System Battery Low Under Voltage Over Voltage Locked Rotor Trip Over Frequency Emergency Start Motor Over 320% Drive Not Installed Motor Overload Disk Error Printer Error Disk Near Full Pressure Error The Sequential Start Timer and Minimum Run Timer/ Off Delay Timer shall be displayed as numeric values reflecting the value of the remaining time.

3 LED Visual Indicators LED indicators, visible with the door closed, shall indicate: Power On Emerg. Isolating Switch Open Pump Running Low System Pressure Alarm Transfer Switch Normal Deluge Open Transfer Switch Emergency Phase Failure Phase Reversal Interlock On Data Logging The digital display shall monitor the system and log the following data: Motor Calls/Starts Elapsed Motor Run Time Last Trip Currents Elapsed Power On Time Last Breaker Trip Maximum Run Currents Minimum Voltages Minimum Run Currents Maximum Voltages Last Motor Run Time Last Phase Failure Last Start Currents Last Phase Reversal Min/Max Frequency Min/Max Pressure The START, STOP and SYSTEM PRESSURE shall be digitally displayed and adjustable through the user interface. The pressure transducer shall be mounted inside the controller to prevent accidental damage. The pressure transducer shall be directly pipe mounted to a bulkhead pipe coupling without any other supporting members. Field connections shall be made externally at the controller coupling to prevent distortion of the pressure switch element and mechanism. Operation A digitally set On Delay (Sequential Start) timer shall be provided as standard. Upon a call to start, the user interface shall display a message indicating the remaining time value of the On Delay timer. The controller shall be field programmable for manual stop automatic stop. If set for automatic stopping, the controller shall allow the user to select either a Minimum Run Timer or an Off Delay Timer. Both timers shall be programmable through the user interface. Event Recording Memory - The controller shall record all operational and alarm events to system memory. All events shall be time and date stamped and include an index number. The system memory shall have the capability of storing 3000 events and allow the user access to the event log via the user interface. The user shall have the ability to scroll through the stored messages in groups of 1, 10, or 100. USB Host Controller - The controller shall have a built-in USB Host Controller. A USB port capable of accepting a USB Flash Memory Disk (aka: flash drive, thumb drive, memory stick, etc..) shall be provided. The controller shall save all operational and alarm events to the flash memory on a daily basis. Each saved event shall be time and date stamped. The total amount of historical data saved shall solely depend on the size of the flash disk utilized. The controller shall have the capability to save settings and values to the flash disk via the user interface. Serial Communications - The controller shall feature a RS485 serial communications port for use with 2 or 4 wire Modbus RTU communications. Solid State Pressure Transducer The controller shall be supplied with a solid state pressure transducer with a range of psi ( bar) ±1 psi. The solid state pressure switch shall be used for both display of the system pressure and control of the fire pump controller. Systems using analog pressure devices or mercury switches for operational control will not be accepted. SP ( )

4 Sequence of Operation Full Voltage Fire Pump Controllers FTA1000 Introduction The following information is in reference to Wiring Schematic, Publication WS Note: Firetrol schematics are drawn showing the equipment in a de-energized state. Energizing The Controller 1. Close the isolating switch/circuit breaker by moving the handle to the ON position. Note: The unmarked, red, Interlock jumper wire, located between terminals #1 & #10 on the Relay PC board, (TB1), will prevent the MarkII unit from starting the electric motor automatically. This jumper wire should only be removed after the pressure settings have been input, and the system pressurized at, or above the Stop set point. 2. The factory programmed MarkII unit will begin initialization. Upon completion, the display will confirm system pressure, the time, date, and Interlock ON, which is an alarm condition and will cause the yellow alarm LED to flash. Any other existing alarm conditions (low system pressure, phase reversal, phase failure, deluge open), will also be sequentially and continuously displayed at this time, until each is rectified. 3. With the interlock jumper wire still in place, the electric motor can only be started by depressing the START push-button, located on the flange of the controller enclosure, or by engaging the Emergency Run Mechanism. After all alarm conditions have been rectified, and the system pressurized at or above the Stop pressure setting, then the interlock jumper may be removed for the controller s automatic operation ( standby ). With the interlock jumper removed, a drop in system pressure to the MarkII s set Start point, will start the electric motor. 4. The deluge valve contacts are only operational if the factory jumper has been removed and a normally closed deluge valve contact has been placed between terminals 1 and 8 of the Relay PC board, (TB1). The Remote Start is only operational if a normally open, momentarily closed contact is wired to terminals 6 and 7 of the Relay PC board, (TB1). If engaged, the Emergency Run Mechanism will cause the pump motor to run as described in the Emergency Starting and Stopping section. Automatic Start and Stop 1). The controller s pressure transducer initiates the automatic start circuits for the pump motor. When pressure falls at, or below the MarkII Start setting, relay 1CR is energized. 1CR normally open contact closes, allowing voltage to the motor starter circuits (see section Pump Motor Starting Sequence for more information) The minimum run time is a part of the MarkII s Menu, Timer Settings. The minimum run timer s factory setting is 10 minutes. In this mode, minimum run time begins when the pressure falls at or below the Start set point, calling for the pump motor to run. When pressure drops, this signals the MarkII to output via the Relay PC board, directly to the 1CR relay coil. The relay s normally open contact closes, allowing line voltage to the coil of the 1M contactor. The contactor s 3 normally open contacts close, allowing 3 phase line voltage to the electric motor, and the motor runs. Simultaneously, the minimum run function of the MarkII is activated, maintaining voltage on the 1CR relay coil, and keeping the motor running until the 10 minutes expire. At this time, with pressure restored at or above the Stop set point, 1CR relay coil will de-energize, re-opening its normally open contact, de-energizing the 1M contactor coil. It s 3 normally open contacts will reopen, causing the motor to de-energize and stop. If pressure is restored at, or above the Stop set point of the MarkII, and even if minimum run time has not yet expired, the manual STOP push button located on the flange of the controller can be depressed to manually stop the engine. This also resets the minimum run time function of the MarkII. Manual Start and Stop The pump motor may be manually started by using either the START push-button mounted on the flange of the enclosure or by using a normally open, momentarily closed, remote start push-button connected to terminals 6 and 7. When the START push-button is depressed, or a remote start signal is seen through terminals 6 & 7, the MarkII will output through the relay pc board to 1CR relay coil and the pump motor will be energized and run as described in section Automatic Start & Stop. The MarkII s minimum run time feature will not be activated. The pump motor will continue to run until the STOP push-button is depressed. When the STOP push-button is depressed, 1CR relay coil is de-energized, interrupting the voltage to the 1M contactor coil, which causes the motor to stop. Deluge Valve Operation To operate the controller utilizing a deluge valve, the wire jumper between terminals 1 and 8 must be removed and a normally closed, open to run deluge valve contact wired in its place.

5 When the deluge valve contact opens, relay 1CR is energized, closings it s normally open contact to the 1M contactor coil, and the motor runs. When the deluge valve contact closes, relay 1CR is de-energized, re-opening it s normally open contact, deenergizing the 1M contactor, and the motor stops. Shutdown Interlock Operation The shutdown interlock, if used, is a normally open, closed to interlock contact wired to terminals 1 and 10. When the interlock contact is closed, relay 1CR cannot be energized by inputs to the MarkII from the pressure transducer, or the deluge valve. The controller may be started manually by depressing the manual START push button. See the specific starting operation for more details. Pump Motor Starting Sequence Whenever relay 1CR is energized, it s normally open contact closes, allowing voltage to the coil of the motor starting contactor. During full voltage starting the following sequence occurs. 1CR normally open contact closes, energizing contactor 1M. 1M connects motor terminals T1, T2, and T3 to the power source. This starts the motor in the full voltage configuration, in which the pump motor draws 100% of its normal inrush current and supplies 100% of its normal starting torque. Emergency Starting and Stopping The controller is equipped with an emergency run mechanism for use in the event of a coil burnout or other electrical problem which would prevent normal starting of the pump motor. The mechanism attempts to both electrically and mechanically start the pump motor. When the emergency run mechanism is utilized, a e-run contact is closed, energizing 1M coil. This, in effect, attempts to electrically start the pump motor. The emergency run mechanism also manually closes the 1M contactor, starting the motor. This will run the motor as long as the main three phase power is available. If the pump motor is running via the emergency run mechanism, DO NOT release the mechanism to stop the motor. Place the isolating switch/circuit breaker handle in the off position, then release the emergency run mechanism. Releasing the mechanism while the motor is running could result in damage to the motor or the motor contactor. Note: The emergency run mechanism is not intended for, nor should it be used as a testing device. Its sole purpose is to attempt to start the pump motor in the event of a failure. SQ ( )

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