UPS Operating Instructions
6-20 Eaton 93E UPS (300/400 kVA, 380/400/415V) Installation and Operation Manual
WARNING
Power is present inside the UPS cabinet.
6.4.4 Transfer from Bypass to Normal Mode
To transfer the critical load to Normal mode:
1. Select the CONTROLS symbol on the main menu bar. The System Control screen is displayed.
2. If not already selected, select UPS on the System Control screen.
3. On the UPS System Control screen, select the BYPASS NORMAL command, then press the RETURN
pushbutton.
All of the UPSs transfer to Normal mode. If the power module is not available, the system remains on
bypass and an alarm sounds.
The NORMAL status indicator is illuminated.
WARNING
Power is present inside the UPS cabinet.
6.4.5 Single UPS Shutdown
To shut down the UPS:
1. Open the MOB for the UPS being shut down.
2. Select the CONTROLS symbol on the main menu bar. The System Control screen is displayed.
3. If not already selected, select UPS on the System Control screen.
4. On the UPS System Control screen, select the NORMAL UPS OFF command, then press the RETURN
pushbutton.
The output contactors open, and the power module is turned off on the UPS being shut down.
Logic power remains on.
WARNING
Power is present inside the UPS cabinet after the upstream input feeder circuit breakers are
opened because of the installed external battery cabinet.
5. If input feeder circuit breaker and bypass input breaker is installed customer, open the input feeder circuit
breaker and bypass input breaker.
6. If EBCs are installed, open all battery breakers
The UPS is now completely shut down.
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