Eaton Power Xpert 9395C UPS Installation and Operation Manual 164000821—Rev 06
135
5.
Verify the battery breaker or disconnect for the UPS being shut down is open. If not, open the breaker.
6.
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.
77..55..44
S
Siinnggllee U
UP
PS
S R
Reessttaarrtt iinn aa P
Paarraalllleell S
Syysstteem
m
If any UPS output is on, do not close the MOBs of any non-powered attached parallel units. Closing the MOBs
may open or blow the non-active unit's output fuses.
To restart a single UPS from a shutdown state:
1.
Do not close the MOB for the UPS being restarted.
2.
Close UPS input and bypass feeder circuit breakers for the UPS being restarted.
3.
On the UPS being restarted, observe the UPS control panel display becoming active, indicating logic
power.
4.
On the UPS being restarted, press the
Power Maps
button on the main menu bar. The
Power Map
screen is displayed (see
).
5.
On the UPS
Power Map
screen, verify the UPS status is SHUTDOWN and on the UPS
Module Map
screen, verify the UPM status is SHUTDOWN.
6.
Verify no alarms are active on UPS being restarted.
7.
Verify the External Communications Failure alarm has cleared and no other alarms are active on the online
UPSs.
8.
On the
Home
screen, select the
Controls
tab on the
System Controls
screen is displayed (see
).
9.
On the
System Controls
screen, select Go Online (see
). Select “Yes” when prompted.
If Auto Bypass is enabled (factory default), the critical load is immediately supplied after pre-charge by the
bypass source in Bypass mode from all UPSs, until the inverter turns on and the UPSs transfer to Online
mode. The status indicator on the UPS control panel indicates the UPS is in Bypass mode. If Auto Bypass
is not enabled, the UPS outputs remain off until the UPSs turn on the inverter.
10. Press the SELECT pushbutton on the UPS Command menu bar.
NOTE
If the UPS is starting on a bus with other online paralleled UPSs, the UPS will not go to
bypass during startup. The UPS will start, sync to the other UPSs online, and go online.
11. Verify the following messages display sequentially on the UPS status line:
DC STARTING, BYPASS
ONLINE
The rectifier and inverter turn on. The inverter continues to ramp to full voltage.
It takes approximately one minute for the UPS to achieve Online mode.
Summary of Contents for Power Xpert 9395C
Page 8: ......
Page 175: ...16400082106 164000821 06...