Installing the 7-Day Digital Startup Timer

Transcription

1 Instruction Sheet Installing the 7-Day Digital Startup Timer WARNING: Allow only qualified personnel to perform the following tasks. Observe and follow the safety instructions in this document and all other related documentation. 1. Description The Nordson 7-Day Digital Startup Timer is used to turn on heater and control circuitry in Series 5000 units over a seven-day period. This feature is useful in bringing the material to application temperature before production personnel arrive Fig. 1 The 7-Day Digital Startup Timer The 7-Day Digital Startup Timer will not cut power from the heating and control circuitry. This is done either by the auto shutdown feature (if installed) or by manually setting the Series 5000 main disconnect switch to OFF. NOTE: The Series 5000 auto shutdown feature cuts power from the heating and control circuitry if the pump solenoid has not been energized within a preset time range as established during the Series 5000 setup procedure. The 7-Day Digital Startup Timer kit is easily installed inside a Series 5000 unit electrical enclosure using the mounting hardware included in this kit. Included are a solid state timer with a liquid crystal display (LCD), relay, wiring, and mounting hardware.

2 2 Installing the 7-Day Digital Startup Timer 2. Safety WARNING: Danger of electrocution. Disconnect equipment from the line voltage before performing this installation. The input side of the main fuse block remains electrically energized even with the main disconnect switch set to Off. Failure to observe this warning can result in equipment damage, personal injury, or death. CAUTION: Ensure that all electrical connections are made correctly. Incorrect connections may cause equipment damage. 3. Bracket and Relay Installation Perform this procedure to install the timer kit mounting bracket and solid-state relay. 1. Disconnect and lock out input electrical power from the Series 5000 unit. 2. Unlatch and open the electrical enclosure door. 3. Locate the five factory-drilled holes in the drum melter electrical enclosure inner panel. L1 L2 L3 Q3 ON 2 CONN2 KM OFF OPEN COVER 3 KA1 1 Fig. 2 Electrical Enclosure Details 1. Digital timer kit mounting holes 2. Terminal block 3. Wire duct cover

3 Installing the 7-Day Digital Startup Timer 3 3. Bracket and Relay Installation (contd.) 4. Use the 6-32 x 1.00 inch pan head screw and the No. 6 split lockwasher in this kit to secure the timer relay to the second hole from the bottom Fig. 3 Timer Bracket and Relay Mounting Details 1. Timer relay 2. Inner panel 3. No. 6 split lockwasher 4. Panhead screw (6-32x1.00) 1 5. Timer bracket 6. Panhead screw (8-32x0.38) 7. No. 8 split lockwasher

4 4 Installing the 7-Day Digital Startup Timer 3. Bracket and Relay Installation (contd.) 5. Use the 8-32 x 0.38 inch pan head screw and the No. 8 split lockwasher in this kit to secure the timer bracket to the inner panel. NOTE: Use the second hole from the top for the timer bracket securing screw; the nib on the bracket fits into the untapped hole directly below the bracket screw hole. 6. Carefully pry off the plastic cover from the timer unit Fig. 4 Startup Timer Assembly Details 1. Plastic cover 2. Timer unit 3. Slot head screw 4. Timer backing plate with terminal connections 5. Wire cover 6. No. 6 split lockwasher 7. Pan head screw (6-32x0.31) 8. Timer bracket

5 Installing the 7-Day Digital Startup Timer 5 3. Bracket and Relay Installation (contd.) 7. Loosen the two slot head screws that secure the timer unit to its backing plate. 8. Carefully separate the backing plate from the timer unit and slide the plastic wire cover free of the backing plate. 9. Secure the timer backing plate to the timer bracket using the two 6-32 x 0.31 pan head screws and the No. 6 split lockwashers in this kit. 4. Wiring Connections Follow this procedure to connect the timer relay electrically to the Series 5000 electrical circuitry. Refer to your Series 5000 unit wiring diagram for the exact terminal locations in your unit. 1. Carefully pry the cover off the electrical enclosure wire duct. See Figure 2 for the location of the wire duct. 2. Connect wire 42E to drum melter terminal XT2-7, then route it through the wire duct to timer relay terminal 4. PT U1 U N,M 50H 50G,H 88 XT M 50G XT N 88 1 KT E XT2--7 Fig. 5 Digital Startup Timer Wiring Diagram Note: PT = Digital Timer Backing Plate; KT2 = Timer Relay

6 6 Installing the 7-Day Digital Startup Timer 4. Wiring Connections (contd.) 3. Connect wire 88 to timer relay terminal 2, then route it to timer backing plate terminal Connect wire 38M to the Series 5000 unit terminal XT1-16, then route it through the wire duct to timer backing plate terminal U1. 5. Connect wire 38N to timer relay terminal 1, then route it to timer backing plate terminal U1. 6. Connect wire 50G to the Series 5000 unit terminal XT2-4, then route it through the wire duct to timer backing plate terminal Connect wire 50H to timer backing plate terminal U2, then route it to timer backing plate terminal Reinstall the wire duct cover inside the electrical enclosure. 9. Reinstall the plastic wire cover onto the timer backing plate. 10. Carefully press the timer unit onto its backing plate and secure it in place with the two slot head screws loosened in the previous procedure. 11. Close and latch the electrical enclosure door. NOTE: Do not reinstall the plastic cover on the digital startup timer unit until after all settings have been completed and the Series 5000 unit is ready for normal operation.

7 Installing the 7-Day Digital Startup Timer 7 5. Timer Programming Understanding the Timer Front Panel There are several keys and symbols used in the operation of the 7-day digital startup timer Pr U1 U Fig. 6 Timer Front Panel Details 1. Clockface symbol 2. Hand symbol 3. Day-of-week display 4. Segment display of programmed times 5. On/Off indicator symbol Time-of-day display 7. Programming mode symbol 8. Multi-function field-switching and copying key 9. Multi-function setting key 10. Multi-function manual operation and On/Off key

8 8 Installing the 7-Day Digital Startup Timer Clockface Symbol This symbol at the top left corner of the timer panel indicates which of the three operational modes the timer unit is in: If the clockface is... Then... On Flashing Absent The timer is in the normal (automatic) running mode. Power to the heater and control circuitry will be activated as programmed. The timer is ready for setting the current time and day. The timer is in either the programming mode or in manual operating mode. Hand Symbol This symbol displays only when the timer is in the manual operating mode. Day-of-Week Display This rectangular box shows numbers 1 through 7 to indicate the day of the week, with 1 = Monday, 2 = Tuesday, etc. S During normal operation, this display shows the current day. S During programming, this display shows the day being programmed. Segment Display of Programmed Startup Times This display along a circular 24-hour clock dial provides a visual representation of programmed startup times. On / Off Indicator Symbol This oval at the top right corner of the timer panel indicates whether a contact inside the timer unit is programmed open or closed during the programming procedure and if the contact is open or closed during actual operation. If the symbol displays... Then the contact is... Half-dark Clear Closed (power to the heating and control circuitry is on). Open (power to the heating and control circuitry is off).

9 Installing the 7-Day Digital Startup Timer 9 Time-of-Day Display This rectangular box shows the hours and minutes of the day using a 24-hour format (13 = 1 p.m., 14 = 2 p.m., etc.). S During normal operation, this display shows the current time. S During programming, this display shows the programmed startup times. Programming Mode Symbol This symbol appears only after the current time and day have been set. Multi-Function Field-Switching Key / Copying Key The key on the timer front panel has three functions: S advances to the desired day of the week in the day-of-week display for setting the timer to the current day S advances to the hour field and minutes field in the time-of-day display for setting the timer to the current time S copies programmed startup times from one day to the next during programming if the unit has not already been programmed Multi-Function Setting Key The + key on the timer front panel is used to advance to the desired hour and minute when setting the current time and programmed startup times. This key is also used to clear programmed times when pressed together with the Multi-Function Manual On / Off Key. Multi-Function Manual On / Off Key This key on the timer front panel is used to program startup times and also to manually switch the timer on and off as needed. This key is also used to clear programmed times when pressed together with the Multi-Function Setting Key.

10 10 Installing the 7-Day Digital Startup Timer Setting the Current Day and Time 1. Apply input electrical power to the Series 5000 unit and set the main disconnect switch to ON. 2. Unlatch the electrical enclosure door, use a flatblade screwdriver to turn the recessed screw below the main disconnect switch counterclockwise, then open the door. WARNING: Danger of electrocution. The Series 5000 electrical enclosure contains energized electrical components with potentials that could be fatal. Use extreme caution and press only the timer keys when performing this procedure. Failure to observe this warning can result in death. 3. Press and hold all three buttons on the timer face panel to clear the timer of its current settings. You will see the time display reset to --:--, the day-of-week display reset to 1, and the clockface symbol appear at the top left corner of the display. Day of the Week 1. Press the key. The clockface and the number 1 in the day- of-week display begin flashing. 2. Press the + key to advance to the current day. NOTE: 1 = Monday, 2 = Tuesday, etc. Time of Day 1. Press the key. The clockface and the hour digit in the time display flash. 2. Press the + symbol to advance to the number of hours that have passed since midnight. NOTE: For hour settings after 12 noon, 13 = 1 p.m., 14 = 2 p.m., etc. (24 = 12 midnight). 3. Press the key. The clockface and the minute digits in the time display flash. 4. Press the + symbol to set the number of minutes that have passed since the top of the last hour.

11 Installing the 7-Day Digital Startup Timer 11 Setting the Startup Times 1. Press the key until the Pr symbol and the On / Off indicator symbol either appear or blink on and off. If... Then... There are no startup times already programmed into the unit, There are startup times already programmed into the unit, The Pr symbol and On/Off indicator will blink on and off. The Pr symbol and On/Off indicator will appear and stay on. 2. Press the key to advance to the desired day of the week. NOTE: 1 = Monday, 2 = Tuesday, etc. If... Then... No startup time is currently programmed for the desired day, A startup time is already programmed for the desired day and you wish to change it, Go to step 3. Press the + key and Manual On/Off key on the timer front panel at the same time to clear that day s settings, then go to step Press the + key until the desired startup time displays, then release the key. NOTE: If you press and hold the + key, the timer advances by one-minute increments at first, but then switches to advance by 15-minute increments. 4. Press the Manual On/Off key. The timer display will appear as described below: S A hatchmark appears at the programmed startup time outside the clock dial. S The Pr symbol and the time-of-day digits begin flashing. S The On/Off symbol becomes half dark and also begins flashing.

12 12 Installing the 7-Day Digital Startup Timer Setting the Startup Times (contd.) 5. Press the + key briefly until one or two additional hatchmarks appear on the display, then release the key. 6. Press the Manual On/Off key. The timer display will appear as described below: S The Pr symbol and the time-of-day digits continue flashing. S The On/Off symbol clears but stays flashing. If... Then... You wish to program a startup time for the next day, You have no more startup times to program, Go to step 7. Press the key until the clockface symbol and the current day and time are displayed, then go to step Press the key to advance to the next day of the week. The previous day s startup time is automatically copied to this day if no startup times have already been programmed or if all startup times have been cleared. If... Then... You wish to program in a different startup time, You wish to keep this startup time and proceed to the next day, Press the + key and Manual On/Off key together on the timer front panel to clear the settings, then complete steps 3 through 6. Press the key again. NOTE: When you press the key after day 7, the timer display will appear as described below: S The current time and day are displayed along with a hatchmark showing programmed startup time for the current day. S The clockface symbol reappears. S The Pr symbol disappears.

13 Installing the 7-Day Digital Startup Timer 13 Setting the Startup Times (contd.) 8. Decide if the system is ready for normal operation or if more adjustments are required. If... Then... No changes are required to the Series 5000 unit temperatures, You must adjust the Series 5000 temperature settings, troubleshoot the unit, or perform maintenance procedures, Reinstall the plastic cover on the timer unit, close and latch the enclosure door, then go to step 9. Go to the next procedure. 9. Set the Series 5000 unit main disconnect switch to ON. The 7-Day Digital Startup Timer will automatically power up the heating and control circuitry according to the days and times programmed into the timer unit. 6. Manual Operation Follow this procedure to manually operate the Series 5000 unit and override settings programmed into the 7-Day Digital Startup Timer. This is especially useful during maintenance and troubleshooting procedures. If... Then... The Series 5000 unit main disconnect switch is on, but the unit is not programmed for startup or the startup time has not occurred, The Series 5000 unit main disconnect switch is off, The Series 5000 unit main disconnect switch is on and the timer has already switched on the unit as programmed, Press the On/Off key at the lower right corner of the timer front panel to turn the unit on. Then use the Series 5000 unit main disconnect switch to turn the unit off and on as required. Set the Series 5000 main disconnect switch to ON. Then press the On/Off key at the lower right corner of the timer front panel to turn the unit on. Afterwards, use the Series 5000 unit main disconnect switch to turn the unit off and on as required. Press the On/Off key at the lower right corner of the timer front panel to keep the internal timer contact closed. Then use the Series 5000 unit main disconnect switch to turn the unit off and on as required. Reinstall the plastic cover on the timer unit, then close and latch the enclosure door.

14 14 Installing the 7-Day Digital Startup Timer 7. Timer Dimensions and Specifications Table 1 Table of 7-Day Digital Startup Timer Specifications Item Electrical Requirements Minimum Switching Time Tolerance Running Reserve (if input power supply fails) Program Memory Ambient Temperature Weight Number of Programmable Days 7 Maximum Number of Programmable On/Off Times per Day Specification 120 VAC, +6%, -15%, Hz (See Figure 7) 1 minute Maximum 2.5 seconds per day Up to 20 hours Unlimited EEPROM 0-50 C ( F) 110 g (3.9 oz) 4 45mm (1.8 in.) 34mm (1.3 in.) 20mm (0.8 in.) 72mm (2.8 in.) 66mm (2.6 in.) Pr 72mm (2.8 in.) 110mm (4.3 in.) 4.5mm (0.2 in.) 33.5mm (1.3 in.) 69mm (2.7 in.) Fig. 7 7-Day Digital Startup Timer Dimensions

15 Installing the 7-Day Digital Startup Timer Timer Dimensions and Specifications (contd.) 120 VAC PT 50 U2 U PT KT2 42 H4 W 38 KT Fig. 8 7-Day Digital Startup Timer Schematic

16 16 Installing the 7-Day Digital Startup Timer Original copyright date Nordson and the Nordson logo are registered trademarks of Nordson Corporation.