Eaton Power Xpert 9395 550/275 Installation And Operation Manual page 177

UPS Operating Instructions
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To turn on the battery charger:
1. Press the CONTROLS pushbutton on the main menu bar. The System Status screen is displayed.
2. On the System Status screen, select the CHARGER command.
3. Press the CONTROLS pushbutton on the System Status menu bar. The Charger Control Command screen
is displayed.
4. On the Charger Control Command screen, select CHARGER ON.
5. Press the SELECT pushbutton on the Charger Command menu bar.
To turn the battery charger off:
1. Press the CONTROLS pushbutton on the main menu bar. The System Status screen is displayed.
2. On the System Status screen, select the CHARGER command.
3. Press the CONTROLS pushbutton on the System Status menu bar. The Charger Control Command screen
is displayed.
4. On the Charger Control Command screen, select CHARGER OFF.
5. Press the SELECT pushbutton on the Charger Command menu bar.
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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 the Load Off command on the Bypass Control Command screen. The
UPS LOAD OFF controls the UPSs' outputs by powering down the UPS and de–energizing the critical load.
NOTE
To use the LOAD OFF pushbutton:
1. Press the LOAD OFF pushbutton on the UPS to shut down.
The Load Off screen is displayed, providing a choice to proceed or abort the shutdown.
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 de–energize the critical load.
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 pushbutton 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.
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 Load Off until the cause of the shutdown has been identified and
cleared.
156 Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201716—Rev 14
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
7.4.28 Using the Remote Emergency Power-off Switch ).