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.”