Eaton 93PM-50-1 - Product Specifications for Eaton 93 PM UPS; UPS Input Specifications; UPS Output Specifications

Eaton 93PM Emergency Lighting UPS (50 kW, 480V Three and Four-Wire UL 924) Installation and Operation Manual P-164000569—Rev 03 87
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To 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.
2. Perform the Load Off procedure in paragraph 7.3.12 Using the UPS LOAD OFF Command.
The inverter and bypass switchgear open, and the power module is turned off.
3. Perform the battery charger off procedure in paragraph 7.3.10 Charger Control.
The rectifier and battery switchgear open.
WARNING
Power is present inside the UPS cabinet until the upstream input feeder circuit breakers and battery breakers
are opened. Wait at least 5 minutes before accessing internal components.
4. Open the UPS front door by lifting the latch from the bottom and turning to the right (counterclockwise)
and swing the door open.
5. Open the UPS input breaker.
6. Close the door and secure the latch.
7. Open the UPS input feeder circuit breaker.
8. If dual feed, open the UPS bypass feeder circuit breaker.
9. If IBCs are installed, open all battery breakers.
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To 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:
4. Tap the CONTROLS tab on the main menu navigation bar. The Control screen is displayed.
5. Tap the UPS CONTROLS tab on the secondary navigation bar. The UPS Control screen is displayed.
6. Tap the TURN OFF CHARGER button.
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NOTE The UPS has a user initiated battery test intended to determine if the batteries are able
to support the load.
NOTE The battery test is only able to be initiated when the battery is fully charged. This
normally occurs within 72 hours of the start of a charging cycle. The command will not
be shown if the test is not able to be run.
To 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.
UPS Operating Instructions