UPS OPERATING INSTRUCTIONS
7.3.10Using the UPS LOAD OFF Pushbutton or Command
A UPS Load Off is initiated by the LOAD OFF pushbutton from the main menu bar, the Load Off command on the UPS Control Command screen, or Load Off command on the Bypass Control Command screen. The UPS LOAD OFF controls the UPS output by powering down the UPS and
The UPS (including Bypass) remains off until restarted.
To use the LOAD OFF pushbutton:
1.Press the LOAD OFF pushbutton.
The Load Off screen is displayed, providing a choice to proceed or abort the shutdown.
C A U T I O N
All power to the critical load is lost when the LOAD OFF is selected in the following step. You should use this feature only when you want to
2.To shut down the UPS, press LOAD OFF from the Load Off menu bar, and hold for three seconds. To abort the shutdown, press CANCEL.
When LOAD OFF is selected and held for three seconds, the input, output, battery, and bypass backfeed contactors open, and the power module is turned off.
C A U T I O N
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 pressing the LOAD OFF pushbutton, follow the procedure in paragraph 7.3.1 on page 7−11 or 7.3.2 on page 7−12.
W A R N I N G
Power is present inside the UPS cabinet sections until the upstream input feeder circuit breaker is opened.
To use the LOAD OFF command:
1.Press the CONTROLS pushbutton on the main menu bar. The System Status screen is displayed.
2.On the System Status screen, select either the UPS or the BYPASS command.
3.Press the CONTROLS pushbutton on the System Status menu bar. The UPS or Bypass Control Command screen is displayed.
4.On the Control Command screen, select LOAD OFF.
5.Press the SELECT pushbutton on the Command menu bar.
The Load Off screen is displayed, providing a choice to proceed or abort the shutdown.
EATON Powerware® 9395 UPS | 7−17 |
