ABB A7A5 fault code meaning
ABB / A7A5
Series: ACH531, ACQ531
Mechanical brake release not permitted
drive
Meaning: The conditions for releasing the mechanical brake cannot be met (for example, brake release is inhibited by a parameter).
Possible causes
Source: ACH531 Firmware Manual P130; ACQ531 Firmware Manual P112
Series: ACS380
Mechanical brake release not permitted
drive
Meaning: The conditions for releasing the mechanical brake cannot be met (for example, brake release has been prevented by parameter 44.11).
Possible causes
Source: ACS380 Machinery Control Program Firmware Manual P431
Series: ACS530
Mechanical brake release inhibited
drive
Meaning: The conditions for releasing the mechanical brake are insufficient.
Possible causes
Source: ACS530 Firmware Manual P264
Series: ACS860
Mechanical brake release inhibited
drive
Meaning: Insufficient conditions for releasing the mechanical brake.
Possible causes
Source: ACS860 Basic Control Program Firmware Manual P303
Series: ACS880
Mechanical brake release not permitted
drive
Meaning: The conditions for releasing the mechanical brake cannot be met (for example, parameter 44.11 Keep brake applied inhibits brake release).
Possible causes
Source: ACS880 Basic Control Program Firmware Manual P460
Series: ACS880-M04
Mechanical brake release not permitted
drive
Meaning: Brake fault function. The conditions for releasing the mechanical brake cannot be met (for example, parameter 44.11 keeps the brake applied to prevent its release).
Possible causes
Source: ACS880-M04 Machinery Control Program Firmware Manual P421
Series: ACS880-MARINE
Mechanical brake release inhibited
drive
Meaning: Mechanical brake release conditions cannot be met.
Possible causes
Source: ACS880 Light Marine P318
Series: ACS880-POS, ACS880-WINCH
Mechanical brake release not permitted
drive
Meaning: Fault function: The conditions for releasing the mechanical brake cannot be met (for example, parameter 44.11 keeps the brake applied and inhibits brake release).
Possible causes
Source: ACS880 Position Control Program P447; ACS880 Winch Control Program P554