UPS Operating Instructions6-10 Eaton 93PM UPS (60–100 kW, 480V) Installation and Operation Manual P-164000227—Rev 2 www.eaton.com/powerquality6.3 Single UPS Operation6.3.1 Starting the UPS in Double Conversion ModeTo start the UPS system:1. Close the UPS input feeder circuit breaker.2. If dual feed, close the UPS bypass feeder circuit breaker.3. If IBCs are installed, close the battery breakers.4. Observe the UPS control panel display becoming active, indicating logic power.5. Verify no alarms are active.6. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.7. Tap the GO ONLINE button.8. If requested, enter the Level 1 password. Default password is 1111.The rectifier and inverter turn on. The inverter continues to ramp up to full voltage.Once the inverter reaches full voltage, the UPS inverter switchgear closes and the static switch turns off.Power is now supplied to the critical load in dual conversion mode. It takes approximately one minute forthe UPS to achieve the dual conversion mode.The Normal status indicator is illuminated.6.3.2 Starting the UPS in Bypass ModeIf the inverter output of the UPS is not available and the critical load needs to be energized:CAUTIONIn Bypass mode, the critical load is not protected from commercial power interruptions andabnormalities.1. Close the UPS input feeder circuit breaker.2. If dual feed, close the UPS bypass feeder circuit breaker.3. If the UPS contains a bypass breaker, close the bypass breaker.4. If IBCs are installed, close the battery breakers.5. Observe the UPS control panel display becoming active, indicating logic power.6. Verify no alarms are active.NOTE 1 If an Integrated Battery Cabinet (IBC) is installed, refer to the Eaton 93PMIntegrated Battery Cabinet Installation Manual listed in paragraph 1.8 for EBC batterybreaker location.NOTE 2 If an Integrated Accessory Cabinet-Distribution (IAC-D) is installed, refer to theEaton 93PM Integrated Accessory Cabinet-Distribution Installation and OperationManual listed in paragraph 1.8 for operating instructions.NOTE 3 If an Sidecar Integrated Accessory Cabinet-Bypass (SIAC-B) is installed, refer to theEaton 93PM Sidecar Integrated Accessory Cabinet-Bypass Installation andOperation Manual listed in paragraph 1.8 for operating instructions.