Eaton Power Xpert 9395 - Page 202

Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201725—Rev 15 179
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. 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 the 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.
Do not attempt to restart the system after the Load Off until the cause of the shutdown has been identified and
cleared.
7. To restart the UPS after pressing the LOAD OFF pushbutton, follow the procedure in paragraph
7.3.1 Starting the UPS in Online Mode or 7.3.8 Starting the UPS in Bypass Mode.
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
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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 UPS
immediately, without asking for verification.
The UPS, including Bypass, remains off until restarted.
All power to the critical load is lost when the REPO switch is activated in the following step. You should use
this feature only when you want to de–energize the critical load.
UPS Operating Instructions