ABB A8A1 fault code meaning

ABB / A8A1

Series: ACH531, ACH580, ACQ531, ACQ580, ACS530

RO service life warning

drive

Meaning: The number of relay status changes has exceeded the recommended number.

Possible causes

Source: ACH531 Firmware Manual P131; ACH580 HVAC Control Program Firmware Manual P281; ACQ531 Firmware Manual P113; ACQ580 Pump Control Program Firmware Manual P187; ACS530 Firmware Manual P265

Series: ACM510-S, ACM510-V, ACP510, ACS580

RO service life warning

drive

Meaning: The number of relay status changes has exceeded the recommended limit.

Possible causes

Source: ACM510-01S_04S Drive Firmware Manual P361; ACM510-01V_04V Drive Firmware Manual P402; ACP510 Standard Control Program Firmware Manual P361; ACS580 Standard Control Program Firmware Manual P529

Series: ACS180, ACS280, ACS380

RO service life warning

drive

Meaning: The number of relay trips has exceeded the recommended limit.

Possible causes

Source: ACS180 Machinery Control Program Firmware Manual P317; ACS280 Firmware Manual P335; ACS380 Machinery Control Program Firmware Manual P432