Eaton 93PM Series - Page 116

104 Eaton 93PM UPS 480V Three-Wire – 100 kW Frame Installation and Operation Manual 164000227—Rev 07
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To restart a single UPM from a shutdown state:
1. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.
2. Tap the MODULES CONTROLS tab on the secondary Control menu navigation bar. The UPM Select
screen is displayed.
3. On the UPM Select screen, select the UPM to start. The UPM Control Screen is displayed.
4. Tap the START MODULE button.
The UPM rectifier and inverter turn on. When the inverter reaches full voltage, the UPS is ready to transfer
to the Double Conversion mode and supply the critical load.
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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 7.3.15 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 7.3.13 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 input feeder circuit breaker.
5. If dual feed, open the UPS bypass feeder circuit breaker.
6. 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:
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.
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NOTE 1 The UPS has a user initiated battery test intended to determine if the batteries are able
to support the load.
NOTE 2 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.
UPS Operating Instructions