UPS OPERATING INSTRUCTIONS
Eaton 9395 UPS (450–825 kVA) Installation and Operation Manual
S
164201725 Rev 4
www.eaton.com/powerquality
7-47
13.
If the UPS is a three UPM model, repeat Steps 8 through 11 selecting
UPM 3
to
shut down UPM 3.
14.
If the UPS is a Plus 1 model or an upgraded 825/550, repeat Steps 8 through 11
selecting
UPM 4
to shut down UPM 4.
15.
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.
16.
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 4‐1 on page 4-2).
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 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.
