Eaton 93PM UPS, Инструкция по установке и эксплуатации

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UPS Operating Instructions
Eaton 93PM UPS (20–50 kW, 480V Four Wire – 50 kW Frame) Installation and Operation Manual P-164000540—Rev 4 www.eaton.com/powerquality 6-33
6.4.17 Using the LOAD OFF Command
An UPS shutdown is initiated by the LOAD OFF command on the UPS Control screen. The UPS LOAD OFF
controls the UPSs output by powering down all of the UPSs and de-energizing the critical load.
The UPSs (including Bypass) remains off until restarted.
To use the LOAD OFF command:
1. Tap the CONTROLS tab on the main menu navigation bar. The System Control screen is displayed.
CAUTION
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. Tap the LOAD OFF button.
An action confirmation screen is displayed. Follow the on screen prompts to shut down the UPS or to
cancel the shutdown. Selecting
YES will immediately shut down the UPS and de-energize the critical load.
Selecting NO will abort the shutdown
CAUTION
Do not attempt to restart the system after Load Off until the cause of the shutdown has been
identified and cleared.
3. To restart the UPS after using the LOAD OFF follow the procedure in paragraph 6.4.1 or 6.4.2.
WARNING
Power is present inside the UPS cabinet until the upstream input feeder circuit breakers and
battery breakers are opened.