84 Eaton 93PM Emergency Lighting UPS (50 kW, 480V Three and Four-Wire UL 924) Installation and Operation Manual P-164000569—Rev 03
NOTE If a Sidecar Integrated Accessory Cabinet-Bypass (SIAC-B) is installed, refer to the Eaton
93PM Sidecar Integrated Accessory Cabinet-Bypass Installation and Operation (50 kW
and 100 kW SIAC-B) Manual, listed in paragraph1.8 For More Information, for operating
instructions.
NOTE This unit is a four-wire device that complies with the UL 924 standard. The loss of a
single input phase or the loss of neutral with unbalanced four-wire loads will be
considered a complete loss of input power and discharge the battery to provide power
to the load.
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To start the UPS system:
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. 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 ONLINE button.
12. If requested, enter the Level 1 password. Default password is 1111.
The rectifier and inverter turn on. The inverter continues to ramp up to full voltage.
Once the inverter reaches full voltage, the UPS inverter switchgear closes and the static switch turns off.
Power is now supplied to the critical load in dual conversion mode. It takes approximately one minute for
the UPS to achieve the dual conversion mode.
The Normal status indicator is illuminated.
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If the inverter output of the UPS is not available and the critical load needs to be energized:
CAUTION
In Bypass mode, the critical load is not protected from commercial power interruptions and abnormalities.
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.
UPS Operating Instructions
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