ABB BRAKE ACKN fault code meaning
ABB / BRAKE ACKN
Series: ACS600
Brake applied (holding) acknowledgment fault
drive
Meaning: Unexpected state of the brake acknowledge signal.
Possible causes
Source: ACS600 Standard Application Program Firmware Manual (EN, official site)
Series: ACS800
Mechanical brake acknowledgement signal loss
drive
Meaning: Mechanical brake acknowledgement signal loss.
Possible causes
Source: ACS800 Standard Application Program Firmware Manual P226