188
Eaton
®
Power Xpert
®
9395P-600 (300V-600V) Installation and Operation Manual 164000710—Rev 07
3.
If another UPS is to be shut down, proceed to that UPS and repeat Steps 1 and 2.
Do not attempt to restart the system after a Load Off until the cause of the shutdown has been identified and
cleared.
4.
Restart the UPS after pressing the LOAD OFF pushbutton by following the procedure in paragraph
Starting the Distributed Bypass System in Online Mode
or
Starting the Distributed Bypass System in Bypass Mode
Power is present inside the UPS cabinet until the upstream input feeder circuit breaker is opened.
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A UPS Load Off is initiated by either a command or a pushbutton. It controls the UPSs' outputs by powering
down the UPS and de-energizing the critical load. The UPSs (including Bypass) remain off until restarted.
This procedure initiates a UPS Load Off using the LOAD OFF command.
NOTE
The UPS LOAD OFF controls each UPS independently and does not shut down the
whole distributed bypass system unless all UPSs have been transferred to bypass. To
immediately shut down the whole system, use the REPO switch (see paragraph
Using the Remote Emergency Power-off Switch
All power to the critical load is lost when the LOAD OFF pushbutton is selected in the following step. You
should use this feature only when you want to de-energize the critical load.
To use the LOAD OFF pushbutton:
1.
Press the CONTROLS pushbutton on the main menu bar of the UPS to be shut down. 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.
6.
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 on the UPS.
7.
If another UPS is to be shut down, proceed to that UPS and repeat Steps 1 and 6.
Summary of Contents for Power Xpert 9395P-600/600
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