Energizing The Critical Load - Eaton 93PR Installation And Operation Manual

3. Unfasten the front door latch and swing the door open.
4. (If the UPS contains) Close the UPS output switch, bypass switch, and close the front door.
5. Repeat steps 3-5 for all UPSs in the system.
6.3.8. De-energizing the Critical Load
A UPS system Load Off is initiated by the Load Off button from Controls > System Controls
screen. This button can be pressed to control the UPS output. The Load Off button de-energizes
the critical load and
Powers down the UPS system.
The UPS system (including Bypass) remains off until restarted.
1. Press Load Off.
The shut down screen appears, providing a choice to proceed or abort the shutdown.
All power to the critical load is lost when Load Off is selected in the following step. You
should use this feature only when you want to de-energize the critical load.
2. To shut down the UPS, press Load Off. To abort the shutdown, press ABORT. When Load
Off is selected, the input, output, and bypass backfeed contactors open, the battery breaker
or disconnect is tripped, and all the UPSs in the system are turned off.
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is
opened.
3. To restart the UPS system, follow the procedure in Section
Double Conversion Mode or Section
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NOTE
DANGER
6.3.1
6.3.2 Starting the UPS System in Bypass Mode .
Eaton 93PR 60-1200 kW UPS
Installation and Operation Manual
Starting the UPS System in
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