ABB ACS380 Drive
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Dec 14, 2021 5:40 am
How can resolve problem A7A1 Mechanical brake closing failed warning in ABB ACS380 Drive ?
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Dec 14, 2021 5:40 am
Cause : Mechanical brake control warning.
1. Check mechanical brake connection.
2. Check mechanical brake settings in
parameter group 44 Mechanical brake control.
3. Check that acknowledgment signal matches the actual status of the brake.
