UPS Operation
43
Powerware
®
9PrestigeSeriesUser’sGuide (600 VA- 1800 VA) www.powerware.com
Use the following procedure to reinstall the UPS and transfer the critical
load from Maintenance Bypass (AC Line operation) to the UPS:
1. Reconnect the battery cabinet to the battery connector on the
UPS rear panel.
2. Switch the circuit breaker on all battery cabinets to the ON (
)
position.
3. Reconnect the DB-25 serial communications cable on the UPS
rear panel.
4. Plug the PowerPass into the UPS.
The UPS performs diagnostic tests and enters Normal mode
with the equipment (load) offline. The
indicator remains
lit.
5. Tighten the PowerPass mounting screw using a #2-Phillips
screwdriver. Do not overtighten.
6. For 208V - 240V models, confirm the correct UPS output
voltage is selected (see Steps 2 through 7 beginning on
page 32).
7. Press and hold the Output
On button until you hear the UPS
beep (approximately one second).
The indicator remains lit and the Self Test indicator turns
on.
8. Toggle the Bypass switch on the PowerPass to the UPS position.
The front panel displays the percentage of full load being
applied to the UPS. The UPS is now in Normal mode with the
load online.
