P-164000476
9395P 500kVA / 600 kVA
121
Revision 002
User’s and Installation Guide
WARNING
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is
opened.
NOTE
If the UPS contains an input breaker (CB1), DO NOT open the breaker unless no input feeder
breaker is installed.
9.
Open the input and bypass feeder circuit breakers for the UPS being shut down.
The UPS is now completely shut down.
External Communications Failure alarm is active on remaining online UPSs. This is an expected
event and will clear upon UPS restart.
7.5.17 Single UPS shutdown using UPM shutdown
NOTE
To shut down a single UPS, MOBs with dual auxiliary contacts must be installed and connected
according to the procedure in Section 5.2 on page 61.
To shut down a single UPS:
1
Open the MOB for the UPS being shut down.
2.
On the UPS being shut down, press the LOCK icon on the main screen. The Sign In screen is
displayed. Use operator password to log in (factory default password is 0101).
3.
Select CONTROLS on the main screen. SYSTEM CONTROLS screen opens up.
4.
Select GO TO BYPASS. Command confirmation pop-up screen will show up asking confirmation for
the action. Select YES. The UPS being shut down transfers to bypass while other UPSs stay in
normal mode supporting the load.
5.
Select MODULE CONTROLS. All the installed UPMs and their status are showed here.
6.
Choose one of the UMPs and then select "SHUT DOWN UPM". Command confirmation pop-up
screen will show up asking confirmation for the action. Select YES. The UPM opens its input
contactor and goes to SHUTDOWN. The power module is turned off.
7.
Repeat steps 3 and 4 for all remaining UPMs.
8.
Verify the battery breaker or disconnect for the UPS being shut down is open. If not, open the
breaker.
9.
Open the input and bypass feeder circuit breakers for the UPS being shut down. The UPS is now
completely shut down. External Communications Failure alarm is active on remaining online UPSs.
This is an expected event and will clear upon UPS restart.
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