Eaton Power Xpert 9395 550/275 Installation And Operation Manual page 178

4. Restart the UPS after pressing the LOAD OFF pushbutton by following the procedure in paragraph
7.4.1 Starting the Distributed Bypass System in Online Mode
7.4.8 Starting the Distributed Bypass System in Bypass
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
To use the LOAD OFF command:
1. Press the CONTROLS pushbutton on the main menu bar of the UPS to be shut down. The System Status
screen is displayed.
2. On the System Status screen, select either the UPS or the BYPASS command.
3. Press the CONTROLS pushbutton on the System Status menu bar. The UPS or Bypass Control Command
screen is displayed.
4. On the Control Command screen, select LOAD OFF.
5. Press the SELECT pushbutton on the Command menu bar.
The Load Off screen is displayed, providing a choice to proceed or abort the shutdown.
All power to the critical load is lost when LOAD OFF is selected in the following step. You should use this
feature only when you want to de–energize the critical load.
6. To shut down the UPS, press LOAD OFF from the Load Off menu bar, and hold for three seconds. To
abort the shutdown, press CANCEL.
When LOAD OFF is selected and held for three seconds, the input, output, battery, and bypass backfeed
contactors open, and the power module is turned off on the UPS.
7. If another UPS is to be shut down, proceed to that UPS and repeat Steps 1 through 6.
Do not attempt to restart the system after the Load Off until the cause of the shutdown has been identified and
cleared.
8. Restart the UPS after pressing the LOAD OFF pushbutton by following the procedure in paragraph
7.4.1 Starting the Distributed Bypass System in Online Mode
7.4.8 Starting the Distributed Bypass System in Bypass
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
7 7 . . 4 4 . . 2 2 8 8 U U s s i i n n g g t t h h e e R R e e m m o o t t e e E E m m e e r r g g e e n n c c y y P P o o w w e e r r - - o o f f f f S S w w i i t t c c h h
A UPS emergency power-off is initiated by the REPO pushbutton switch. In an emergency, you can use this
switch to control the UPS output. The REPO switch de–energizes the critical load and powers down the UPSs
immediately, without asking for verification.
The UPS, including Bypass, remains off until restarted.
Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201716—Rev 14
UPS Operating Instructions
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