UPS OPERATING INSTRUCTIONSPower Xpert 9395 UPS (300 kVA) Installation and Operation Manual 164201728 Rev 2 www.eaton.com/powerquality 7-1110. Press the CONTROLS pushbutton on the System Status menu bar. The UPSControl Command screen is displayed.11. On the UPS Control Command screen, select GO TO NORMAL.12. Press the SELECT pushbutton on the UPS Command menu bar.If Auto Bypass is enabled (factory default), the critical load is immediatelysupplied by the bypass source, in Bypass mode, until the inverter turns on andthe UPS transfers to Normal mode. The status indicator on the UPS control panelindicates the UPS is in Bypass mode. If Auto Bypass is not enabled, the UPSoutput remains off until the UPS transfers to Normal mode.13. Observe the following messages are displayed sequentially on theUPM status line:DC STARTING, CHARGER OFFINVERTER STARTINGINVERTER SYNCINGONLINEThe rectifier and inverter turn on. The inverter continues to ramp up to fullvoltage.Once the inverter reaches full voltage, the UPS output contactor K3 closes andthe static switch turns off. Power is now supplied to the critical load in Normalmode. It takes approximately 1 minute for the UPS to achieve Normal mode.The NORMAL status indicator is illuminated. The UPS status indicates ONLINE.The UPM status indicates ONLINE, CHARGING.7.3.2 Starting the UPS in Bypass ModeIf the inverter output of the UPS is not available and the critical load needs to beenergized:C A U T I O NIn Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.1. If the UPS contains input breaker CB1, verify that input breaker CB1 is open.2. Close the UPS input feeder circuit breaker.3. Close the UPS Bypass input feeder circuit breaker.4. Observe the UPS control panel becoming active, indicating logic power.5. Press the CONTROLS pushbutton on the main menu bar. The System Statusscreen is displayed.6. On the System Status screen, the UPS status should indicate SHUTDOWN and theUPM status should indicate OFFLINE.7. If the UPS contains input breaker CB1, close input breaker CB1.8. On the System Status screen, select the BYPASS command.9. Press the CONTROLS pushbutton on the System Status menu bar. The BypassControl Command screen is displayed.
