ABB A4B2 fault code meaning
ABB / A4B2
Series: ACM510-S, ACP510, ACS880
PCB board cooling
drive
Meaning: The temperature difference between the ambient air and the drive module PCB board is too large.
Possible causes
Source: ACM510-01S_04S Drive Firmware Manual P355; ACP510 Standard Control Program Firmware Manual P355; ACS880 Basic Control Program Firmware Manual P454
Series: ACS860, ACS880-MARINE
PCB board cooling
drive
Meaning: The temperature difference between the ambient environment and the drive module PCB board is too large.
Possible causes
Source: ACS860 Basic Control Program Firmware Manual P299; ACS880 Light Marine P315
Series: ACS880-POS
PCB Space heat dissipation
drive
Meaning: The temperature difference between the environment and the space around the drive module PCB is too large.
Possible causes
Source: ACS880 Position Control Program P442
Series: ACS880-WINCH
PCB Space heat dissipation
drive
Meaning: The temperature difference between the ambient environment and the drive module PCB space is too large.
Possible causes
Source: ACS880 Winch Control Program P548