Powerware 9315s - Manual (Page 102)

10--12 Powerware 9315 Parallel Capacity/Redundant System with PHP SSBM
164201373 Rev. A 092402
10.3.7 Using the UPM EMERGENCY UPM OFF Pushbutton
NOTE: The UPM EMERGENCY UPM OFF pushbutton will only interrupt the ability
for that module to deliver power to the critical bus. The redundant modules
continue to support the critical load.
Emergency UPM shutdown is initiated by the covered, red UPM EMERGENCY
UPM OFF pushbutton on the UPM Monitor Panel. This pushbutton is protected by
a clear plastic shield to prevent accidental activation. In an emergency, you can
press this pushbutton to instantaneously open all UPM breakers and interrupt UPM
output. The UPM remains locked off until you reset the EMERGENCY UPM OFF
pushbutton.
To restart the UPS after pressing the
EMERGENCY UPM OFF pushbutton, follow
the procedure “Resetting the UPM after Shutdown” of this chapter before starting
the UPS.
NOTE: The UPM REMOTE EMERGENCY LOAD OFF (REPO) functions in the same
way as the UPM EMERGENCY UPM OFF pushbutton on the UPM Monitor
panel.
10.3.8 To Use the UPM EMERGENCY UPM OFF Pushbutton
1. Raise the clear plastic shield covering the red EMERGENCY UPM OFF
pushbutton on the UPM Monitor Panel.
2. Press the EMERGENCY UPM OFF pushbutton.
UPS breakers CB1 and CB3 and Battery breaker CB2 (MBB) open. The
EMERGENCY UPM OFF PUSH TO RESET pushbutton on the UPM Control Panel
pops out. The UPM shuts down.
10.3.9 Resetting the UPM after an EMERGENCY UPM Shutdown
CAUTION:
Do not attempt to restart the UPM after Emergency UPM Shutdown until the
cause of the emergency has been identified and cleared.
The EMERGENCY UPM OFF PUSH TO RESET pushbutton is a small white button
on the UPM Control Panel. The PUSH TO RESET pushbutton pops out when the
EMERGENCY UPM OFF pushbutton on the Monitor Panel is activated.
To reset the UPM:
1. Press the EMERGENCY UPM OFF PUSH TO RESET pushbutton until it clicks
in and remains recessed.
2. The UPM is now reset. To restart the UPM, follow the procedure in this
chapter, “Restarting a Single UPM.”