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Configuration Program
27
8.9 Battery Tab
Factory default settings illustrated.
8.9.1 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. This may be changed to any value from 2 to 30
minutes.
8.9.2 Auto Battery Test Time
The UPS performs an automated battery test periodically, if enabled. The user may also set the UPS
to test at intervals of 7, 14, 21, and 28 days.
8.9.3 Battery Cabinets Number
If additional batteries are attached to the UPS, accurate battery run time estimates are possible if the
battery number and type of batteries are entered here. The new UPS models are designed to operate
with up to four external battery packs or four long run time (LRT) battery packs (not currently avail-
able).
8.9.4 Auto Battery Test
In some applications it may be preferable to disable the automated, periodic battery test. Click on the
box to remove the check mark and disable the periodic battery test.
8.9.5 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 (serial data or contact closure). If Auto
Restart is enabled (check mark in box), 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 8.7 - Options Tab
for exceptions). Click on the box to remove the check mark and disable Auto Restart.
The boxes above show options available in
the drop-down menus.
The Liebert GXT2-10000RT208 automatically
detects external battery
cabinets when they are connected. Use the
Battery Cabinets Number selection box to
select non-Liebert battery cabinets when used
with the UPS.