UPS OPERATING INSTRUCTIONSPower Xpert 9395 UPS (450–550 kVA) Installation and Operation Manual 164201701 Rev 3 www.eaton.com/powerquality 7-23To turn the battery charger off:1. Press the CONTROLS pushbutton on the main menu bar. The System Statusscreen is displayed.2. On the System Status screen, select the CHARGER command.3. Press the CONTROLS pushbutton on the System Status menu bar. The ChargerControl Command screen is displayed.4. On the Charger Control Command screen, select CHARGER OFF.5. Press the SELECT pushbutton on the Charger Command menu bar.7.3.22 Using the UPS LOAD OFF Pushbutton or CommandA UPS Load Off is initiated by the LOAD OFF pushbutton from the main menu bar, theLoad Off command on the UPS Control Command screen, or Load Off command onthe Bypass Control Command screen. The UPS LOAD OFF controls the UPS output bypowering down the UPS and de‐energizing the critical load.The UPS (including Bypass) remains off until restarted.To use the LOAD OFF pushbutton:1. Press the LOAD OFF pushbutton.The Load Off screen is displayed, providing a choice to proceed or abort theshutdown.C A U T I O NAll power to the critical load is lost when the LOAD OFF is selected in the following step. You should use thisfeature 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 forthree 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 turnedoff.C A U T I O NDo not attempt to restart the system after Load Off until the cause of the shutdown has been identified andcleared.3. To restart the UPS after pressing the LOAD OFF pushbutton, follow the procedurein paragraph 7.3.1 on page 7-10 or 7.3.2 on page 7-11.W A R N I N GPower 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 Statusscreen is displayed.2. On the System Status screen, select either the UPS or the BYPASS command.
