UPS OPERATING INSTRUCTIONSEATON Eaton 9395 550/275 UPS (225–550 kVA) Installation and Operation Manual 164201716 Rev 2 www.eaton.com/powerquality7-2611. Verify the following messages display sequentially on the UPM status line:DC STARTING, CHARGER OFFINVERTER STARTINGINVERTER SYNCINGREADYThe UPM rectifier and inverter turn on.12. To transfer the UPM to Online mode, press the CONTROLS pushbutton on the UPSControl Command menu bar. The UPM Control Command screen is displayed.13. On the UPM Control Command screen, select UPM GO TO ONLINE.14. Press the SELECT pushbutton on the UPM Command menu bar.The UPM transfers to Online mode. The UPM status indicates ONLINE.7.3.22 UPS and Critical Load ShutdownTo perform maintenance or service on the critical load, shut down power to the load:1. Turn off all equipment that is being powered by the UPS.2. Perform the LOAD OFF procedure in paragraph 7.3.24.The input, output, battery, and bypass backfeed contactors open, and the powermodule is turned off.W A R N I N GPower is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.3. If the UPS contains input breaker CB1, open the UPS input breaker CB1.4. Open the UPS input and bypass feeder circuit breakers.7.3.23 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.
