OPERATION
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.
SPress the 
button to select the UPS Off option; press the 
button.
SConfirm the selection. Press and hold the 
button for three seconds, until the UPS stops beeping.
SSwitch 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.
EATON Powerware® 9155 Parallel UPS | 47 |