Eaton Power Xpert 9395 Installation And Operation Manual page 196

The UPSs (including Bypass) remain off until restarted.
NOTE The UPS Load Off controls each UPS independently and does not shut down the whole
distributed bypass system unless all UPSs have been transferred to bypass. To
immediately shut down the whole system, use the REPO switch (see paragraph
7.4.28 Using the Remote Emergency Power-off
To use the LOAD OFF pushbutton:
1. Press the LOAD OFF pushbutton on the UPS to shut down.
The Load Off screen is displayed, providing a choice to proceed or abort the shutdown.
NOTE 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.
2. 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.
3. If another UPS is to be shut down, proceed to that UPS and repeat Steps 1 and 2.
Do not attempt to restart the system after Load Off until the cause of the shutdown has been identified and
cleared.
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.
Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201764—Rev 14
UPS Operating Instructions
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