ABB A7A1 fault code meaning
ABB / A7A1
Series: ACH531, ACQ531
Mechanical brake application fault
drive
Meaning: Mechanical brake control warning.
Possible causes
Source: ACH531 Firmware Manual P130; ACQ531 Firmware Manual P112
Series: ACS380
Mechanical brake application failure
drive
Meaning: Mechanical brake control warning.
Possible causes
Source: ACS380 Machinery Control Program Firmware Manual P431
Series: ACS530
Mechanical brake application failure
drive
Meaning: The mechanical brake acknowledgement status does not match the expected status during brake application.
Possible causes
Source: ACS530 Firmware Manual P264
Series: ACS860, ACS880-MARINE
Mechanical brake application failure
drive
Meaning: Mechanical brake acknowledgement status does not match the expected status while the brake is applied.
Possible causes
Source: ACS860 Basic Control Program Firmware Manual P303; ACS880 Light Marine P318
Series: ACS880-M04
Mechanical brake application failure
drive
Meaning: Brake fault function. During application of the mechanical brake, the confirmed brake status differs from the expected status.
Possible causes
Source: ACS880-M04 Machinery Control Program Firmware Manual P421
Series: ACS880-POS, ACS880
Mechanical brake application fault
drive
Meaning: The mechanical brake acknowledgement status did not occur as expected when the brake was applied.
Possible causes
Source: ACS880 Position Control Program P447; ACS880 Basic Control Program Firmware Manual P460
Series: ACS880-WINCH
Mechanical brake application fault
drive
Meaning: The mechanical brake acknowledgement status did not occur as expected when the brake was applied.
Possible causes
Source: ACS880 Winch Control Program P554