DC OVERVOLT happens when intermediate circuit DC voltage is excessive. The manual's first action is: “Check for and correct: • Static or transient overvoltages in the input power supply. • Insufficient deceleration time (parameters 2203 DECELER TIME 1 and 2206 DECELER TIME 2). • Undersized brake chopper (if present). • Verify that overvoltage controller is ON (using parameter 2005).”
- Model
- ABB ACS550-01 / ACS550-U1
- Display shows
- DC OVERVOLT (2)
- Type
- Fault code
- Source
- Manual p. 245
What 2 means
DC OVERVOLT p. 261
Common causes
- Intermediate circuit DC voltage is excessive. p. 261
What to do
- Check for and correct: • Static or transient overvoltages in the input power supply. • Insufficient deceleration time (parameters 2203 DECELER TIME 1 and 2206 DECELER TIME 2). • Undersized brake chopper (if present). • Verify that overvoltage controller is ON (using parameter 2005). p. 261
Before you service the product, read the safety instructions in the manual p. 6.
If 2 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 2; 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.