Question about Powerware 9120 UPS System
Circuit diagram for powerware 9120 ups
I had a DC bus fault error displayed.
So I unplugged battery, then turned on UPS. It said Batt disconnected of course.
So when I plugged in the batt while the UPS was on, and held the power button for a few sec, the UPS displayed Batt testing.
After a few moments it was back online and had no faults!
Worth a shot.
Posted on Dec 09, 2010
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I can convert apc ups 48V to 24V
Posted on Nov 04, 2014
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Posted on Jan 02, 2017
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