Liebert GXT3 Power Supply User Manual


 
8 Chapter 4 Tabs
GXT3 Configuration Program User Manual
Figure 4-4 Battery Tab
Note
In the Battery Tab, the UPS can be in any mode for the setting to take effect.
Low battery time warning
The UPS will estimate remaining operating time when on batteries. A low battery alarm is activated if the estimated
time reaches the Low Battery Time. The value of Low Battery Time Warning can be selected from 2 to 30 minutes.
Auto battery test time
The UPS performs an automated battery test periodically. If enabled, the value of Auto Battery Test Time can be
selected from 7, 14, 21, and 28 days.
Battery cabinets
If additional batteries are attached to the UPS, accurate battery runtime estimates are possible if the number of
External Battery Cabinets is entered in the textbox of Battery Cabinets. The UPS is designed to operate with up to
four external battery packs or four long runtime (LRT) battery packs.
Auto battery test
In some applications it may be preferable to disable the automated, periodic battery test. Uncheck the Enable Auto
Battery Test box to disable the periodic battery test.
Auto restart
The UPS will provide computer grade power during power outages. If input power is unavailable for an extended time,
the UPS will shut down when batteries are depleted, or a shutdown signal is sent by the computer operating system
to limit battery depletion (communication data or contact closure).
If Auto Restart is enabled (checkmark in the box of Enable Auto Restart), the UPS will restart when input power is
restored. If the UPS turns off power to the load for any other reason, manual restart is required (See Options tab for
exceptions). Uncheck the Enable Auto Restart box to disable Auto Restart.
Auto shutdown
If the UPS has reached the Low Battery warning level, the UPS will either continue to shutdown or return to Utility
when the Utility power returns, dependent on the setting of Enable Auto Shutdown.
If Enable Auto Shutdown is checked, then the UPS will continue to shutdown even if the Utility power returns.
If Enable Auto Shutdown is unchecked, then UPS will return to Utility when the input power returns.