ABB ACS560 Drive
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Jul 13, 2021 12:18 pm
How can resolve problem A7A2 Mechanical brake opening failed alarm/warning in ABB ACS560 Drive ?
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Jul 13, 2021 12:18 pm
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.
