UPS Operating InstructionsEaton 93PM Emergency Lighting UPS (20–40 kW, 480V Four Wire – UL 924) Installation and Operation Manual P-164000569—Rev 2 www.eaton.com/powerquality 6-196.3.4 Transfer from Double Conversion to Bypass ModeTo transfer the critical load to Bypass mode:CAUTIONIn Bypass mode, the critical load is not protected from commercial power interruptions andabnormalities.1. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.2. Tap the GO TO BYPASS button.The UPS transfers to Bypass mode. and the critical load is immediately supplied by the bypass source. Ifthe bypass source is not available, the power module remains on and an alarm sounds.The BYPASS status indicator is illuminated. The power module remains on.WARNINGPower is present inside the UPS cabinet.6.3.5 Transfer from Bypass to Double Conversion ModeTo transfer the critical load to Normal mode:1. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.2. Tap the GO ONLINE button.The UPS transfers to Double Conversion mode. If the power module is not available, the system remainson bypass and an alarm sounds.The NORMAL status indicator is illuminated.6.3.6 Transfer from ESS Mode to Double Conversion ModeTo transfer the load to Standard Normal mode:1. Tap the CONTROLS tab on the main menu navigation bar. The Control screen is displayed.2. Tap the EAA CONTROLS tab on the secondary Control menu navigation bar. The EAA CONTROLSscreen is displayed.3. Tap the DISABLE ESS button.The UPS transfers to Double Conversion mode.The NORMAL status indicator is illuminated.