ABB ACS880 Drive
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Dec 13, 2021 10:29 am
How can resolve problem 71A3 Mechanical brake opening failed Fault in ABB ACS880 ?
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Dec 13, 2021 10:37 am
Cause : Mechanical brake control fault. Activated eg. if brake acknowledgement is not as expected during brake opening.
1. Check mechanical brake connection.
2. Check mechanical brake settings in parameter
group 44 Mechanical brake control.
3. Check that acknowledgement signal matches actual status of brake
Jun 29, 2023 6:32 am
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