Energy Tech Laboratories EDP70 manual Maintenance Bypass, Shut-Down, Installing the EPO

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8.0MAINTENANCE BYPASS

The EDP70 PLUS UPS is equipped with Manual Maintenance Bypass systems. If a unit requires servicing, the Manual Maintenance Bypass allows the load to be connected directly to the AC supply so that the unit may be serviced in safety. The following instructions must be followed:

1.Ensure that ‘SYSTEM NORMAL’ is displayed on the LCD. (Note: If ‘SYSTEM NORMAL’ is not displayed check that the inverter is not ‘OUT OF SYNC’, see section 10.7. Turning the inverter off under this fault condition will interrupt the load supply.)

2.Turn off the inverter by pressing the inverter shutdown button for more than 2 seconds

3.Turn the Maintenance Bypass Switch (located behind front panel, see figure 14, 17 or 20) to ON.

4.Turn off the Primary Input, Reserve Input and UPS Output Switches, see figure 14, 17 or 20.

THE LOAD IS NOW SUPPLIED DIRECTLY FROM THE AC UTILITY SUPPLY AND IS NO LONGER PROTECTED BY THE UPS

CAUTION: Some components in the UPS will retain a static voltage even after the switches have been opened. Also, on the 50/80kVA ratings, the isolating transformer and the relative cooling fans are still supplied from the Bypass.

To return to the normal operating mode, follow the above procedure in reverse.

Note: The EDP70 PLUS UPS must not be left operating with the Maintenance Bypass Switch in the ON position.

9.0SHUT-DOWN

1.Close down the load in an orderly manner.

2. Push the

(inverter shutdown) button for more than 2 seconds.

3.Turn the main switch to OFF.

Note: If the electricity supply to the site is switched off outside normal working hours, the EDP70 PLUS should be shut down each evening, by either using the shutdown procedure or wiring in the Emergency Power Off (EPO) function, see figures 14, 17, 19 or 22 (depending on the UPS size).

This will prevent the battery from discharging.

If, on the other hand, the supply to the site is continuous, the EDP70 PLUS should be operated 24 hours a day.

9.1Installing the EPO

To wire the EPO, open the link between terminal boards 1 and 2 and connect a signal switch: when the switch is enabled, the inverter and rectifier will stop, the battery relay will be opened and the load will be de-energized

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Contents EDP70 Plus Important Safety Instructions Read Before Installing ALL CASES, Seek Medical Attention Immediately Contents Figures Summary of the manual Block diagramIntroduction Summary of the equipment24kVA Standard Configuration Functions 480VOperational modes 24/36kVA Ratings10 --MI00/10056 rev.1--05/2001 Safety General safetySymbols Electrical precautions Battery precautionsBattery safety equipment Installation Mechanical characteristicsStorage ALL Measurements are Millimeters and Inches NR4 16 --MI00/10056 rev.1--05/2001 Battery Cabinet Drawing for 24/36kVA Ratings 18 --MI00/10056 rev.1--05/2001 Battery Cabinet Drawing for 50/80kVA Ratings 20 --MI00/10056 rev.1--05/2001 Installation Recommended wire sizes Supply Output Reserve Supply UPS Type Ventilation = 2770 - - - ∙ e 0.125 h Tk / T0 Tr TkConnection OutputUninterruptible Power System No Unauthorized Operation MI00/10056 rev.1--05/2001-- Table of T& B’s cat.no.s for terminals and crimp tools Electrical connectionsBattery Compartment 24 12/18/24kVAOutput, Reserve, Input Reserve Ground Primary Input Output External Batteries 36 24/30/36kVA Observe Polarities and Orientations RS232 Female EDP70 Plus 50/80kVA 36 --MI00/10056 rev.1--05/2001 QS1 QS2 QS3 QS4 QS5 Battery charge inhibited Signal connectionsEmergency Power Off Thermostick connector 50/80kVA onlyDisplay indicators ControlsUser Controls Control Panel LCDStart UP Maintenance Bypass Installing the EPOSHUT-DOWN MI00/10056 rev.1--05/2001-- Mimic Visual and Audible AlarmsSilencing Audible Alarm Liquid Crystal DisplayDisplay Page Headings System NormalBattery Test Weekly Power History Down to Access Load Time on Reserve xxg xxh xxm xxs Inverter Load Abnormal operating mode messages System AlarmStop DUE to Overload RECTIFIER/BATTERY Alarms Message Condition Inverter Alarms Message Condition LOAD/RESERVE Alarms Message Condition Power History Power History MatrixBattery Test Battery Autonomy TestResetting data loss manually MI00/10056 rev.1--05/2001-- Computer Interface 11.1 AS400Remote Alarms 11.2 RS23213.1 EDP70 PLUS/24/18/12 Battery Installation/Start-up Batteries= EDP70 PLUS/24/18/12 Internal Battery Shelves 13.2 EDP70 PLUS/24/18/12 Optional Battery CubicleMaintenance and Spare Parts 13.3 EDP70 Plus above 20kVA Battery Installation/Start-up13.4 EDP70 Plus above 20kVA Battery Cubicle EDP70 Plus System LOG
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