ABB A104 fault code meaning
ABB / A104
Series: DCS500B
Motor 1 overl.alarm
DC drive
Meaning:
Possible causes
Source: DCS500B Operation Manual Chinese edition (official site)
Series: DCS550
Rectifier overtemperature
DC drive
Meaning: overtemperature
Possible causes
Source: DCS550 Manual (EN, official site)