EARTH FAULT indicates a possible ground fault detected in motor or motor cables. The manual's first action is: “The drive monitors for ground faults while the drive is running and while the drive is not running. Detection is more sensitive when the drive is not running and can produce false positives. Possible corrections: • Check for/correct faults in the input wiring. • Verify that motor cable does not exceed maximum specified length. • Decrease the detection level for earth fault with parameter 3028 EARTH FAULT LVL. • A delta grounded input power supply and motor cables with high capacitance may result in erroneous error reports during non-running tests. To disable response to fault monitoring when the drive is not running, use parameter 3023 WIRING FAULT. To disable response to all ground fault monitoring, use parameter 3017 EARTH FAULT. Note: Disabling earth fault (ground fault) may void the warranty.”
- Model
- ABB ACS550-01 / ACS550-U1
- Display shows
- EARTH FAULT (16)
- Type
- Fault code
- Source
- Manual p. 245
What 16 means
EARTH FAULT p. 262
Common causes
- Possible ground fault detected in the motor or motor cables. p. 262
What to do
- The drive monitors for ground faults while the drive is running and while the drive is not running. Detection is more sensitive when the drive is not running and can produce false positives. Possible corrections: • Check for/correct faults in the input wiring. • Verify that motor cable does not exceed maximum specified length. • Decrease the detection level for earth fault with parameter 3028 EARTH FAULT LVL. • A delta grounded input power supply and motor cables with high capacitance may result in erroneous error reports during non-running tests. To disable response to fault monitoring when the drive is not running, use parameter 3023 WIRING FAULT. To disable response to all ground fault monitoring, use parameter 3017 EARTH FAULT. Note: Disabling earth fault (ground fault) may void the warranty. p. 262
Before you service the product, read the safety instructions in the manual p. 6.
If 16 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 16; 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.