HP R1500 HP 3 Phase UPS User Guide - Page 43

CAUTION, WARNING, Tighten the screws securing each Parallel UPS Card in the X-Slot communication bay.

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Page 43 highlights

Item Description 12 UPS UNIT 3 8. Install the redundant signal wiring between the For Parallel Use Only and Standalone/Parallel terminals on each UPS. Remove the existing terminal block connectors before installing the cable. 9. Secure the cable to the UPS using cable ties and plastic standoffs. Be sure to check for correct polarity when installing the cable. CAUTION: If polarity or wiring is not correct, the parallel system does not operate normally. For example, when shutting down one UPS, the remaining UPS transfers the load to bypass instead of supporting the load. Be sure all wiring is correct for proper operation. 10. Remove the Standalone/Parallel terminal block connector from the top UPS. 11. Tighten the screws securing each Parallel UPS Card in the X-Slot communication bay. Removing the UPS battery bracket Be sure that all circuit breakers on the rear panel of the UPS are in the Off position. Installing the batteries WARNING: To prevent personal injury, prepare the area and observe all materials-handling procedures when transporting a battery module. Battery modules weigh 20 kg (44 lb). UPS installation 43

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UPS installation 43
Item
Description
12
UPS UNIT 3
8.
Install the redundant signal wiring between the For Parallel Use Only and Standalone/Parallel terminals
on each UPS. Remove the existing terminal block connectors before installing the cable.
9.
Secure the cable to the UPS using cable ties and plastic standoffs.
Be sure to check for correct polarity when installing the cable.
CAUTION:
If polarity or wiring is not correct, the parallel system does not operate normally. For
example, when shutting down one UPS, the remaining UPS transfers the load to bypass instead of
supporting the load. Be sure all wiring is correct for proper operation.
10.
Remove the Standalone/Parallel terminal block connector from the top UPS.
11.
Tighten the screws securing each Parallel UPS Card in the X-Slot communication bay.
Removing the UPS battery bracket
Be sure that all circuit breakers on the rear panel of the UPS are in the Off position.
Installing the batteries
WARNING:
To prevent personal injury, prepare the area and observe all materials-handling
procedures when transporting a battery module. Battery modules weigh 20 kg (44 lb).