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Chapter 10 UPS maintenance
To test a new battery pack:
Step 1. Allow the batteries to charge for 48 hours.
Step 2. Press any button to activate the menu options.
Step 3. Select
Control
The UPS starts a battery test if the battery pack is fully charged, the UPS is in Normal mode,
that is in on-line mode, with no active alarms, and the bypass voltage is acceptable.
During the battery test, the UPS transfers to Battery mode and discharges the battery pack for
25 seconds. The front panel displays "Battery test in progress" and the percentage of the test
completed.
Attention! Once batteries are replaced, it is important to run a charge cycle of 48 hours to ensure the
capacity and runtime is synchronized. Two battery tests are performed during that portion
of the ABM cycle, three measurements are performed and will ensure there are no bad
cells in the battery string.
The battery algorithm needs a known starting point for ABM functionality, battery test and
the estimated runtime to be reasonable. Charging the batteries for 48 hours ensures those
functions are set correctly and advised for any start-up to ensure the batteries are good
and the timers are setup correctly.
Run a manual battery test and then let the batteries charge for 48 hours. See
Display functions
manually start a battery test.
During the 48 hour charge cycle the UPS is not to protect any load!
6U Rack or Tower UPS RT8kVA and RT11kVA IUOMG
→
Start a battery
under
Control
test.
/
Start battery test
for additional information on how to
Chapter 3
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