Powerware 9355 - Manual (Page 56)

OPERATION
EATON Powerware ® 9355 Parallel UPS (10/15 kVA) User’s Guide S 164201601 Rev A www.powerware.com 50
Restarting the Parallel System
To restart the parallel system:
1. Verify that all UPS breakers on the parallel tie cabinet are in the OFF
position.
2. Switch on utility power where the UPSs are connected.
3. Wait for the front panel LCD to illuminate.
The indicator flashes on each UPS.
4. Switch all battery circuit breakers to the ON position.
The indicator stops flashing on each UPS.
5. Switch the UPS breakers on the parallel tie cabinet to the ON
position.
6. 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.
7. Press the ESC button once and then press the button to select
the TURN UPS ON/OFF menu.
8. Press the button to select the System On option; press the
button.
9. Confirm the selection. Press and hold the button for three
seconds, until the UPS stops beeping.
The UPS goes to Bypass mode for five seconds, and then the
indicator illuminates. Each UPS should be in Normal mode.
10. Press the ESC button until the Eaton Powerware logo appears.