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I have one servo drive Sigma SG-AS15AF. Fitted in one machine.
It shows error b 41 ,
Reason for this error is not found in it's manual also.
Can someone please help to solve it please.

b41 - Second Channel Current Detection Abnormal
most likely suggests a fault in the current sensing circuit hardware. bad optocoupler/isolation amp maybe? repair or replace the drive...

http://www.sparkmotors.in/images/produc ... -mnual.pdf

Thank you very much sir for your kind help