ABB ACS380 Drive
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Dec 14, 2021 10:04 am
How can resolve problem 71A5 Mechanical brake opening not allowed Fault in ABB ACS380 ?
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Dec 14, 2021 10:04 am
Cause : Open conditions of mechanical brake cannot be fulfilled.
1.Check mechanical brake settings in
parameter group 44 Mechanical brake control.
2. Check that the acknowledgment signal (if used) matches the actual status of the brake.
