10
−
4
EATON
Powerware 9315 Parallel Capacity/Redundant System
164201150 Rev. E
www.powerware.com
10.2.4 Single UPM Shutdown
NOTE:
If system is not redundant, UPM can not be shutdown using this procedure.
1.
On UPM, turn the
MODE
switch to
BYPASS
.
2.
On SBM monitor screen, verify UPS OFF message appears.
3.
Set UPM battery disconnect breaker to open.
4.
When UPM Battery Disconnected alarm and notification message is received,
open CB1 on UPM. The UPM powers down.
WARNING
Power is present at UPM CB1 input, until upstream UPM input
feeder circuit breaker is opened. Fans and load side of K3 will
still have voltage present.
10.2.5 SBM Shutdown to Bypass
1.
On SBM, turn the
SYSTEM MODE
key switch to
BYPASS
momentarily.
2.
Observe CBS opens and CBP closes.
3.
On SBM monitor screen, verify On Bypass message appears. System is now
on bypass.
4.
Set UPM battery disconnect breakers to open.
5.
When UPM Battery Disconnected alarm and notification message is received,
open CB1 on all UPMs, except the last UPM. The last UPM must be shutdown
using the UPM
LOAD OFF
pushbutton. Refer to Using the UPM
LOAD OFF
Pushbutton" in this chapter.
6.
To shutdown last UPM, press last UPM
LOAD OFF
pushbutton.
WARNING
Power is present at UPM CB1 input, until upstream UPM input
feeder circuit breaker is opened. Fans and load side of K3 will
still have voltage present.
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