UPS Operating Instructions6-30 Eaton 93PM UPS (20–100 kW, 480V – 100 kW Frame) Installation and Operation Manual P-164000227—Rev 6 www.eaton.com/powerquality6.4.14 Parallel System 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 parallel system.2. Transfer the UPSs to bypass by performing the procedure in paragraph 6.4.9.3. Perform the Load Off procedure in paragraph 6.4.17.The inverter and bypass switchgear open, and the power module is turned off on all UPSs.4. Perform the battery charger off procedure in paragraph 6.4.15.The rectifier and battery switchgear open.WARNINGPower is present inside the UPS cabinet until the upstream input feeder circuit breakers andbattery breakers are opened.5. Open the all of the UPSs input feeder circuit breaker.6. If dual feed, open all of the UPSs bypass feeder circuit breaker.7. If IBCs are installed, open all battery breakers.6.4.15 Charger ControlTo turn the battery charger on:1. Tap the CONTROLS tab on the main menu navigation bar. The Control screen is displayed.2. Tap the UPS CONTROLS tab on the secondary navigation bar. The UPS Control screen is displayed.3. Tap the TURN ON CHARGER button.To turn the battery charger off:1. Tap the CONTROLS tab on the main menu navigation bar. The Control screen is displayed.2. Tap the UPS CONTROLS tab on the secondary navigation bar. The UPS Control screen is displayed.3. Tap the TURN OFF CHARGER button.6.4.16 Battery TestTo start the battery test:1. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.2. Tap the UPS CONTROLS tab on the secondary navigation bar. The UPS Control screen is displayed.3. Tap the RUN BATTERY TEST button.NOTE 1 This UPS has a user initiated battery test intended to determine if thebatteries are able to support the load.NOTE 2 The battery test is only able to be initiated when the battery is fullycharged. This normally occurs within 72 hours of the start of a chargingcycle. The command will not be shown if the test is not able to be run.
