ABB F541 fault code meaning
ABB / F541
Series: DCS550
M1FexLowCur
DC drive
Meaning: exciter low (under-) current
Possible causes
Source: DCS550 Manual (EN, official site)
Series: DCS880
Motor 1 field undercurrent.
DC drive
Meaning:
Possible causes
Source: DCS880 Firmware Manual_3ADW000474R P397