Operation
Starting the UPS on Battery
NOTE Before using this feature, the UPS must have been powered by utility power at least once.
To start the UPS on battery:
1.If you have an optional MBM/PDM, verify that the Maintenance Bypass switch is in the UPS position (see Figure 41 on page 79).
2.Switch all battery circuit breakers to the ON position.
NOTE Leave the battery circuit breaker(s) in the ON position during this operation. If you need to cancel this operation, wait until the front panel LCD illuminates before switching the battery circuit breaker(s) off.
3.Wait for the front panel LCD to illuminate.
4.Press any button on the front panel display to activate the menu options.
5.Within three minutes, press the 
button on the front panel display and then press the 
button to select the TURN UPS ON/OFF menu.
6.Select the ON option. Press and hold the 
button for three seconds, until the UPS stops beeping.
The UPS starts within two minutes. The UPS supplies power to your equipment and goes into Battery mode.
74 | Powerware® 9155 UPS |