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Powerware
®
9125 Two-in-One (5000/6000 VA) PDM User’s Guide S Rev B www.powerware.com
Chapter 4 Operation
The PowerPass Distribution Module allows for the removal of the UPS
while providing power to your protected equipment. This Maintenance
Bypass feature is useful when replacing the UPS for maintenance or
upgrades.
Using Maintenance Bypass
Use the following procedure to transfer your equipment to Maintenance
Bypass (AC Line operation) and remove the UPS:
1. Remove the PDM front panel.
2. Turn the Bypass switch on the PDM to the BYPASS position. The
PDM is now powering your equipment from utility power.
3. Press and hold the Off button for approximately three
seconds. The UPS switches to Standby mode.
4. If optional Extended Battery Module(s) are installed, switch the
battery circuit breaker on the first EBM r ear panel to the
OFF (O) position.
Unplug the EBM cable from the UPS.
5. Disconnect the PDM input and output cords from the UPS. See
Figure 8 on page 19.
The UPS shuts down in five seconds. The bar graph and battery
indicators flash briefly prior to shutdown.
6. Remove the UPS.