UPS OPERATING INSTRUCTIONSEaton 9395 550/275 UPS (225–550 kVA) Installation and Operation Manual 164201716 Rev 2 www.eaton.com/powerquality 7-2323. Press the SELECT pushbutton on the UPM Command menu bar.The UPM transfers to Online mode. The UPM status indicates ONLINE.7.3.17 Transfer from Online to Bypass ModeTo transfer the critical load to Bypass mode:C A U T I O NIn Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.1. Press the CONTROLS pushbutton on the main menu bar. The System Statusscreen is displayed.2. On the System Status screen, select the BYPASS command.3. Press the CONTROLS pushbutton on the System Status menu bar. The BypassControl Command screen is displayed.4. On the Bypass Control Command screen, select GO TO BYPASS.5. Press the SELECT pushbutton on the Bypass Command menu bar.The UPS transfers to Bypass mode and the critical load is immediately suppliedby the bypass source. If the bypass source is not available, the power moduleremains on and an alarm sounds.The BYPASS status indicator is illuminated. The Bypass status indicates ON. TheUPM status indicates READY. The power module remains on.W A R N I N GPower is present inside the UPS cabinet.7.3.18 Transfer from Bypass to Online ModeTo transfer the critical load to Online mode:1. If not already closed, close the battery breaker.2. Press the CONTROLS pushbutton on the main menu bar. The System Statusscreen is displayed.3. On the System Status screen, select the UPS command.4. Press the CONTROLS pushbutton on the System Status menu bar. The UPSControl Command screen is displayed.5. On the UPS Control Command screen, select GO TO ONLINE.6. Press the SELECT pushbutton on the UPS Command menu bar.The UPS transfers to Online mode. If the power module is not available, thesystem remains on bypass and an alarm sounds.The Online status indicator is illuminated. The UPS status indicates ONLINE. TheUPM status indicates ONLINE.
