UPS OPERATING INSTRUCTIONSEATON Powerware® 9395 UPS (450–550 kVA) Installation and Operation Manual 164201701 Rev 2 www.powerware.com7−427.4.24 Charger ControlTo turn the battery charger on: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 ON.5. Press the SELECT pushbutton on the Charger Command menu bar.To 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.7.4.25 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 UPSs outputsby powering down the UPS and de-energizing the critical load.The UPSs (including Bypass) remain off until restarted.NOTE The UPS Load Off controls each UPS independently and does not shut down the whole distributedbypass system unless all UPSs have been transferred to bypass. To immediately shut down the whole system,use the REPO switch (see paragraph 7.4.26).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 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 on the UPS.
