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OPERATION
EATON Powerware
®
9155 Parallel UPS (8–15 kVA) User’s Guide S 164201592 Rev C www.powerware.com
47
9. Shut down each UPS:
S Press the button on the front panel display and then press the
button to select the TURN UPS ON/OFF menu.
S Press the button to select the UPS Off option; press the
button.
S Confirm the selection. Press and hold the button for three
seconds, until the UPS stops beeping.
S Switch the UPS battery circuit breaker to the OFF position.
The UPS is disconnected from the batteries and is on logic
power only.
10. Cycle the utility power to the distribution point where the parallel tie
cabinet and UPSs are connected. Wait until the LCD is off before
reapplying utility power.
11. Switch the UPS breakers on the parallel tie cabinet to the ON
position.
12. Switch all battery circuit breakers to the ON position.
13. Verify that no alarms appear on the UPS front panel display.
If the
indicator is flashing, do not proceed until all alarms are
clear. Check the UPS status from the front panel to view the active
alarms. Correct the alarms and restart if necessary.
14. Verify the phase rotation for each UPS.
15. From the UPS Status menu, select the Units on CAN Bus option
and verify that all UPSs appear in the list.
If all UPSs appear in the list, press the
ESC
button until the Eaton
Powerware logo appears.
If any UPS is missing, verify the Powerware Hot Sync CAN Bridge
Card connections and recheck the status from the UPS front panel.
16. Press the
button on the front panel display and then press the
button to select the TURN UPS ON/OFF menu.