ABB 71A5 fault code meaning
ABB / 71A5
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 P141; ACQ531 Firmware Manual P123
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 P445
Series: ACS530
Mechanical brake release inhibited
drive
Meaning: The conditions for releasing the mechanical brake cannot be met.
Possible causes
Source: ACS530 Firmware Manual P276
Series: ACS860
Mechanical brake release inhibited
drive
Meaning: Mechanical brake release conditions cannot be met.
Possible causes
Source: ACS860 Basic Control Program Firmware Manual P314
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 P476
Series: ACS880-M04
Mechanical brake release not permitted
drive
Meaning: The brake fault function cannot meet the conditions for releasing the mechanical brake (for example, parameter 44.11 keeps the brake applied to prevent its release).
Possible causes
Source: ACS880-M04 Machinery Control Program Firmware Manual P440
Series: ACS880-MARINE
Mechanical brake release inhibited
drive
Meaning: The conditions for releasing the mechanical holding brake cannot be met.
Possible causes
Source: ACS880 Light Marine P330
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 P465; ACS880 Winch Control Program P571