ABB FA81 fault code meaning
ABB / FA81
Series: ACH531, ACQ531, ACQ580
Safe torque off 1
drive
Meaning: Safe torque off is active, i.e., STO circuit 1 is damaged.
Possible causes
Source: ACH531 Firmware Manual P144; ACQ531 Firmware Manual P125; ACQ580 Pump Control Program Firmware Manual P203
Series: ACH580
Safe torque off 1
drive
Meaning: The safe torque off function is active, i.e., STO circuit 1 is damaged.
Possible causes
Source: ACH580 HVAC Control Program Firmware Manual P289
Series: ACS180, ACS380
Safety torque interruption 1
drive
Meaning: The safe torque off function is activated, i.e., STO circuit 1 is damaged.
Possible causes
Source: ACS180 Machinery Control Program Firmware Manual P325; ACS380 Machinery Control Program Firmware Manual P447
Series: ACS280, ACS580
Safe torque off 1
drive
Meaning: The safe torque off function is activated, i.e., STO circuit 1 is damaged.
Possible causes
Source: ACS280 Firmware Manual P348; ACS580 Standard Control Program Firmware Manual P546
Series: ACS530
Safe torque off 1
drive
Meaning: The safe torque off function is activated, indicating that STO circuit 1 is damaged.
Possible causes
Source: ACS530 Firmware Manual P280
Series: ACS860
Drive interlock 1
drive
Meaning: The drive interlock function is active, for example because DIL circuit 1 is damaged.
Possible causes
Source: ACS860 Primary Control Program Firmware Manual P317
Series: ACS880
Safety torque off 1 loss
drive
Meaning: The safe torque off function is active, i.e. STO circuit 1 is open.
Possible causes
Source: ACS880 Primary Control Program Firmware Manual P479
Series: ACS880-M04
Safety torque off 1 loss
drive
Meaning: The safe torque off function is activated, i.e., STO circuit 1 is damaged.
Possible causes
Source: ACS880-M04 Machinery Control Program Firmware Manual P443
Series: ACS880-MARINE
Safety torque off 1 loss
drive
Meaning: The safe torque off function is active, for example because STO circuit 1 is damaged.
Possible causes
Source: ACS880 Light Marine P332
Series: ACS880-POS
Safety torque off 1 loss
drive
Meaning: Safe torque off is active, i.e., STO circuit 1 is damaged.
Possible causes
Source: ACS880 Position Control Program P468
Series: ACS880-WINCH
Safe torque off 1
drive
Meaning: The safe torque off function is activated, indicating that STO circuit 1 is damaged.
Possible causes
Source: ACS880 Winch Control Program P574