Eaton 93PM-50-1 - Battery Maintenance and Installation

Eaton 93PM Emergency Lighting UPS (50 kW, 480V Three and Four-Wire UL 924) Installation and Operation Manual P-164000569—Rev 03 85
6. Close the door and secure the latch.
7. If IBCs are installed, close the IBC battery breakers.
8. Observe the UPS control panel display becoming active, indicating logic power.
9. Verify no alarms are active.
10. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.
11. Tap the GO TO BYPASS button.
The critical load is immediately supplied by the bypass source, in Bypass mode.
The BYPASS status indicator is illuminated.
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To start the power module without transferring the critical load to Double Conversion mode:
1. Open the UPS front door by lifting the latch from the bottom and turning to the right (counterclockwise)
and swing the door open.
2. Verify that the UPS input breaker is open.
3. Close the UPS input feeder circuit breaker.
4. If dual feed, close the UPS bypass feeder circuit breaker.
5. Close the UPS input breaker.
6. Close the door and secure the latch.
7. Observe the UPS control panel becoming active, indicating logic power.
8. Verify no alarms are active.
9. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.
10. Tap the MODULES CONTROLS tab on the secondary Control menu navigation bar. The UPM Select
screen is displayed.
11. On the UPM Select screen, select UPM 1. The UPM Control Screen is displayed.
12. Tap the START MODULE button.
The UPM 1 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 transfer the critical load to Bypass mode:
CAUTION
In Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.
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. If
the 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.
UPS Operating Instructions