Eaton Power Xpert 9395 Installation And Operation Manual page 193

UPS Operating Instructions
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
NOTE
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 7 . . 4 4 . . 2 2 3 3 S S i i n n g g l l e e U U P P S S S S h h u u t t d d o o w w n n u u s s i i n n g g U U P P M M S S h h u u t t d d o o w w n n
NOTE
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 CONTROLS pushbutton on the main menu bar. The System
Status screen is displayed.
3. On the System Status screen, select the BYPASS command.
4. Press the CONTROLS pushbutton on the System Status menu bar. The Bypass Control Command screen
is displayed.
5. On the Bypass Control Command screen, select GO TO BYPASS.
6. Press the SELECT pushbutton on the Bypass Command menu bar.
The UPS being shut down transfer to Bypass mode.
The BYPASS status indicator is illuminated. The Bypass status indicates ON. The UPM status indicates
READY. The power module remains on.
7. If UPM 4 (FI-UPM) is installed, proceed to Step 8; otherwise, proceed to Step 12.
8. On the System Status screen, select the UPM command. The UPS Control Command screen is displayed.
9. On the UPS Control Command screen, select the UPM 1 command.
10. Press the CONTROLS pushbutton on the UPS Control Command menu bar. The UPM 1 Control
Command screen is displayed.
11. Proceed to Step 14.
12. On the System Status screen, select the UPM command.
13. Press the CONTROLS pushbutton on the System Status Command menu bar. The UPM 1 Control
Command screen is displayed.
14. On the UPM 1 Control Command screen, select UPM OFF.
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.
172 Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201764—Rev 14
If the UPS contains an input breaker (CB1), DO NOT open the breaker unless no input
feeder breaker is installed.
To shut down a single UPS, MOBs with dual auxiliary contacts must be installed and
connected according to the procedure in paragraph
5.2 Installing Distributed Bypass Control Wiring.