ABB 4E03 fault code meaning
ABB / 4E03
Series: ACS860-REG
Overtemperature
drive
Meaning: The regenerative rectifier module heatsink temperature exceeds the limit, possibly due to module overload, a fan fault, or the heatsink sensor.
Possible causes
Source: ACS860 Regenerative Rectifier Control Program Firmware Manual P118
Series: ACS880
Overtemperature
drive
Meaning: Power supply unit module temperature exceeds the limit.
Possible causes
Source: ACS880 Basic Control Program Firmware Manual P484
Series: ACS880-BRAKE
Overtemperature
drive
Meaning: Braking module heatsink overtemperature due to module overload, a fan fault, a heatsink sensor fault, or another cause.
Possible causes
Source: ACS880 Braking Control Program Firmware Manual P128
Series: ACS880-DCDC
Overtemperature
drive
Meaning: DC/DC converter module heatsink overtemperature due to module overload, a fan fault, a heatsink sensor, or other causes.
Possible causes
Source: ACS880 DC _ DC Drive Control Program Firmware Manual P197
Series: ACS880-DIODE
Overtemperature
drive
Meaning: The supply module heatsink temperature is too high due to causes such as module overload, a fan fault, or a heatsink sensor fault.
Possible causes
Source: ACS880 Diode Supply Control Program P178
Series: ACS880-IGBT, ACS880-POS
Overtemperature
drive
Meaning: The power unit module temperature exceeds the limit.
Possible causes
Source: ACS880 IGBT Supply Control Program Firmware Manual P207; ACS880 Position Control Program P474