Powerware 9315s - Manual (Page 96)

10--6 Powerware 9315 Parallel Capacity/Redundant System with PHP SSBM
164201373 Rev. A 092402
10.2.8 To Use the LOAD OFF Pushbutton
1. Raise the clear plastic shield covering the red LOAD OFF pushbutton on the
UPM Monitor Panel.
2. Press the LOAD OFF pushbutton.
The breaker and contactors open (you can hear them opening). The CB1 switch
trips, and the Load Off PUSH TO RESET pushbutton on the UPM Control Panel pops
out. The UPM shuts down.
10.2.9 Resetting the UPM after LOAD OFF
CAUTION:
Do not attempt to restart the UPM after Load Off until the cause of the
emergency has been identified and cleared.
The Load Off PUSH TO RESET pushbutton is a small white button on the UPM
Control Panel. The PUSH TO RESET pushbutton pops out and the CB1 switch
trips when the LOAD OFF pushbutton on the Monitor Panel is activated.
To reset the UPM:
1. Press the Load Off PUSH TO RESET pushbutton until it clicks in and remains
recessed.
2. Move the CB1 switch from the center (tripped) position to OFF. The switch
should be difficult to move from the TRIPPED position.
3. The UPM is now reset. To restart the UPM , follow the procedure in Chapter 4,
“Starting and Stopping the UPS” in the applicable Powerware 9315 UPS
Operators manual provided with the UPM.
10.2.10 Using the SSBM EMERGENCY UPM OFF Pushbutton
An SSBM Emergency UPM Off is initiated by the covered, red EMERGENCY UPM
OFF pushbutton on the SSBM Control Panel. This pushbutton is protected by a
clear plastic shield to prevent accidental activation. In an emergency, you can
press this pushbutton to instantaneously control the UPM and SSBM output. The
SSBM EMERGENCY UPM OFF pushbutton functions differently, depending on the
Emergency Power Off (EPO) option specified when ordered. The options available
are as follows:
S The critical load is transferred to bypass and UPMs powered down.
UPM CB1 breakers remain closed.
S
Power to the critical load is de-energized and UPMs powered down.
UPM CB1 breakers remain closed.
S
The critical load is transferred to bypass and UPMs powered down.
UPM CB1 breakers trip and the UPM is cut off from utility power.
This function requires additional EPO kit available from Powerware.
S
Power to the critical load is de-energized and UPMs powered down.
UPM CB1 breakers trip and the UPM is cut off from utility power.
This function requires additional EPO kit available from Powerware.