ABB ACS880 Drive
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Dec 13, 2021 7:41 am
How can resolve problem A7A2 Mechanical brake opening failed warning in ABB ACS880 Drive ?
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Dec 13, 2021 7:41 am
Cause : Status of mechanical brake acknowledgement is not as expected during brake open.
1. Programmable warning:
44.17 - Brake fault function.
2. Check mechanical brake connection.
3. Check mechanical brake settings in parameter group 44 Mechanical brake control.
4. Check that acknowledgement signal matches actual status of brake.
Jun 29, 2023 6:49 am
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