Single Ups Restart - Eaton Power Xpert Plus 1 Installation And Operation Manual

UPS OPERATING INSTRUCTIONS
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Power Xpert 9395 UPS (450–550 kVA) Installation and Operation Manual
11. Press the
SELECT
The UPM status indicates SHUTDOWN
open, and the power module is turned off. The remaining UPMs supply the
critical load.
Logic power remains on.
12. Repeat Steps 8 through 11 selecting
13. If the UPS is a Plus 1 model, repeat Steps 8 through 11 selecting
down UPM 4.
14. Verify the battery breaker or disconnect for the UPS being shut down is open. If
not, open the breaker.
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.
15. 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.
7.4.22

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
bar. The System Status screen is displayed.
On the System Status screen, verify the UPS status is SHUTDOWN and the UPM
8.
status is SHUTDOWN.
9. Close the battery breaker for the UPS being restarted.
10. Verify no alarms are active on UPS being restarted.
pushbutton on the UPM 1 Command menu bar.
.
The input, output, and battery contactors
to shut down UPM 2.
UPM 2
W A R N I N G
CONTROLS
S
www.eaton.com/powerquality
164201701 Rev 4
to shut
UPM 4
pushbutton on the main menu