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Chapter 10 UPS maintenance
Step 8.
Reinstall the front bezel by tightening the four captive screws.
Note: There is some left-to-right slack in the bezel, so ensure that it is lined up correctly
before tightening the screws.
Step 9.
Snap the center section of the bezel into place.
Step 10. Continue to
Testing a new battery pack
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!
128
Testing a new battery
under
Control
pack.
/
Start battery test
for additional information on how to
6U Rack or Tower UPS RT8kVA and RT11kVA IUOMG
Chapter 3
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