ABB E21D fault code meaning
ABB / E21D
Series: ACS580MV
Cooling fan test run
drive
Meaning: The cooling fan runs in test mode independently of the drive status.
Possible causes
Source: ACS580MV Firmware Manual P326
ABB / E21D
drive
Meaning: The cooling fan runs in test mode independently of the drive status.
Source: ACS580MV Firmware Manual P326