UPS OPERATING INSTRUCTIONS
Eaton 9395 UPS (225–275 kVA) Installation and Operation Manual S 164201683 Rev 3 www.eaton.com/powerquality
7-46
15. Press the SELECT pushbutton on the UPM 1 Command menu bar.
The UPM status indicates SHUTDOWN
. The input, output, and battery contactors
open, and the power module is turned off.
Logic power remains on.
16. If UPM 4 (FI-UPM) is installed, repeat Steps 9 through 15 selecting
UPM 4 to shut
down UPM 4.
17. Verify the battery breaker or disconnect for the UPS being shut down is open. If
not, open the breaker.
W A R N I N G
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.
18. 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.
7.4.24 Single UPS Restart
To restart a single UPS from a shutdown state:
1. Close the MOB for the UPS being restarted.
2. Close UPS input and bypass feeder circuit breakers for the UPS being restarted.
3. Unfasten the front door latch and swing the door open on the UPS being
restarted (see Figure 4‐2 on page 4-4).
4. If input breaker (CB1) is installed on the UPS being restarted and is open, close
the breaker.
5. Close the door and secure the latch.
6. On the UPS being restarted, observe the UPS control panel display becoming
active, indicating logic power.
7. On the UPS being restarted, press the
CONTROLS pushbutton on the main menu
bar. The System Status screen is displayed.
8. On the System Status screen, verify the UPS status is SHUTDOWN and the UPM
status is SHUTDOWN.
9. Close the battery breaker for the UPS being restarted.
10. Verify no alarms are active on UPS being restarted.
11. Verify the External Communications Failure alarm has cleared and no other
alarms are active on the online UPSs.
12. On the System Status screen, select the
UPS command.
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