4 single upm shutdown, 5 ssbm shutdown to bypass – Powerware 9315s User Manual
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10--4
Powerware 9315 Parallel Capacity/Redundant System with PHP SSBM
164201373 Rev. A
092402
10.2.4 Single UPM Shutdown
NOTE: If system is not redundant, UPM cannot be shut down using this procedure.
1.
On UPM, turn the
MODE switch to BYPASS.
2.
On SSBM 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 SSBM Shutdown to Bypass
1.
On SSBM, turn the
SYSTEM MODE key switch to BYPASS momentarily.
2.
Observe CBS opens and CBP closes.
3.
On SSBM 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.