ABB A7C1 fault code meaning

ABB / A7C1

Series: ACH531, ACQ531

Fieldbus adapter A communication

drive

Meaning: Bus adapter A communication loss function. Loss of the cyclic communication signal between the drive and bus adapter module A, or between PLC and bus adapter module A.

Possible causes

Source: ACH531 Firmware Manual P130; ACQ531 Firmware Manual P112

Series: ACQ580

Fieldbus adapter A communication

drive

Meaning: Bus adapter A communication loss function. Loss of the cyclic communication signal between the drive and bus adapter module A, or between PLC and bus adapter module A.

Possible causes

Source: ACQ580 Pump Control Program Firmware Manual P186

Series: ACS530

Fieldbus A communication

drive

Meaning: Line adapter A communication loss function. Loss of the cyclic communication signal between the drive and bus adapter module A, or between PLC and bus adapter module A.

Possible causes

Source: ACS530 Firmware Manual P264

Series: ACS860

Fieldbus adapter A communication

drive

Meaning: Bus adapter A communication loss function. Loss of the cyclic communication signal between the drive and fieldbus adapter module A, or between PLC and fieldbus adapter module A.

Possible causes

Source: ACS860 Basic Control Program Firmware Manual P303

Series: ACS880

Fieldbus A communication

drive

Meaning: Adapter A communication loss function. Loss of the cyclic communication signal between the drive and bus adapter module A, or between PLC and bus adapter module A.

Possible causes

Source: ACS880 Basic Control Program Firmware Manual P461

Series: ACS880-MARINE

Fieldbus adapter A communication

drive

Meaning: Adapter A communication loss function: Loss of the cyclic commutation signal between the drive and fieldbus adapter module A, or between PLC and fieldbus adapter module A.

Possible causes

Source: ACS880 Light Marine P319

Series: DCS880

FBA A communication enabled. This is to inhibit unnecessary faults

DC drive

Meaning: (The higher-level controller usually starts up more slowly than the converter).

Possible causes

Source: DCS880 Firmware Manual_3ADW000474R P363