Fault code3
DEV OVERTEMP indicates the drive heatsink is overheated, at or above limit temperature. The manual's first action is: “R1...R4: 115 °C (239 °F) R5, R6: 125 °C (257 °F) Check for and correct: • Fan failure. • Obstructions in the air flow. • Dirt or dust coating on the heat sink. • Excessive ambient temperature. • Excessive motor load.”
- Model
- ABB ACS550-01 / ACS550-U1
- Display shows
- DEV OVERTEMP (3)
- Type
- Fault code
- Source
- Manual p. 245
What 3 means
DEV OVERTEMP p. 261
Common causes
- Drive heatsink is overheated. Temperature is at or above limit. p. 261
What to do
- R1...R4: 115 °C (239 °F) R5, R6: 125 °C (257 °F) Check for and correct: • Fan failure. • Obstructions in the air flow. • Dirt or dust coating on the heat sink. • Excessive ambient temperature. • Excessive motor load. p. 261
Before you service the product, read the safety instructions in the manual p. 6.
If 3 is still not resolved
- contact your local ABB representative for replacement p. 6 “Never attempt to repair a malfunctioning drive; contact your local ABB representative for replacement.”
- For more technical information, contact your local ABB representative. p. 7 “For more technical information, contact your local ABB representative.”
This page summarises what the manufacturer’s manual says about 3; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with ABB. Found a mistake? Report an error.