ABB PowerValue RT G2 User Manual page 44

4 4 A B B U P S P R O D U C T S A N D S O L U T I O N S
LCD Message
Warning 19:LineDiff
Warning 1A:BypassDiff
Warning 1B:InvCurUnbal
Warning 1C:BpsUnstable
Warning 1D:RedundancyFail
Warning! Battery Age Alert
Explanation
Each module gets different line
voltage when they are in parallel.
Each module gets different bypass
voltage when they are in parallel.
As stated.
UPS switches between bypass
mode and standby mode five times
in 30 minutes due to abnormal
utility.
As stated.
Battery life is expired.
Solution
Contact service personnel.
Contact service personnel.
Contact service personnel.
Contact service personnel.
Check if redundancy setting is correct or
not. Then, contact service personnel.
Check if the battery has been used over its
service age. Or contact service personnel.