Error Codes

Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.

• CodeABB ACS550-01 / ACS550-U1 Error 19: OPEX LINK

  OPEX LINK indicates an internal communication problem on the fiber optic link between control and OINT boards. The manual's first action is: “Contact your local ABB representative.”

• CodeABB ACS550-01 / ACS550-U1 Error 18: THERM FAIL

  THERM FAIL occurs due to internal thermistor measuring drive temperature being open or shorted. The manual's first action is: “Contact your local ABB representative.”

• CodeABB ACS550-01 / ACS550-U1 Error 16: EARTH FAULT

  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. Detec…

• CodeABB ACS550-01 / ACS550-U1 Error 15: EXT FAULT 2

  EXT FAULT 2 is triggered when the digital input defined for second external fault is active. The manual's first action is: “See parameter 3004 EXTERNAL FAULT 2.”

• CodeABB ACS550-01 / ACS550-U1 Error 14: EXT FAULT 1

  EXT FAULT 1 is triggered when the digital input defined for first external fault is active. The manual's first action is: “See parameter 3003 EXTERNAL FAULT 1.”

• CodeABB ACS550-01 / ACS550-U1 Error 12: MOTOR STALL

  MOTOR STALL indicates motor or process stall, operating in stall region. The manual's first action is: “Check for and correct: • Excessive load. • Insufficient motor power. • Parameters 3010...3012.”

• CodeABB ACS550-01 / ACS550-U1 Error 11: ID RUN FAIL

  ID RUN FAIL occurs when Motor ID Run was not completed successfully. The manual's first action is: “Check for and correct: • Motor connections. • Motor parameters 9905...9909.”

• CodeABB ACS550-01 / ACS550-U1 Error 10: PANEL LOSS

  PANEL LOSS occurs when panel communication is lost and drive is in local or remote control mode. The manual's first action is: “To correct check: • Communication lines and connection. • Parameter 3002 PANEL COMM ERR. …

• CodeABB ACS550-01 / ACS550-U1 Error 9: MOT OVERTEMP

  MOT OVERTEMP indicates the motor is too hot, based on drive estimate or temperature feedback. The manual's first action is: “• Check for overloaded motor. • Adjust the parameters used for the estimate (3005...3009). •…

• CodeABB ACS550-01 / ACS550-U1 Error 8: AI2 LOSS

  AI2 LOSS occurs when analog input 2 value falls below A2 FAULT LIMIT (3022). The manual's first action is: “Check for and correct: • Source and connection for analog input. • Parameter settings for A2 FAULT LIMIT (302…

• CodeABB ACS550-01 / ACS550-U1 Error 7: AI1 LOSS

  AI1 LOSS occurs when analog input 1 value falls below A1 FAULT LIMIT (3021). The manual's first action is: “Check for and correct: • Source and connection for analog input. • Parameter settings for A1 FAULT LIMIT (302…

• CodeABB ACS550-01 / ACS550-U1 Error 6: DC UNDERVOLT

  DC UNDERVOLT happens when intermediate circuit DC voltage is insufficient. The manual's first action is: “Check for and correct: • Missing phase in the input power supply. • Blown fuse. • Undervoltage on mains.”

• CodeABB ACS550-01 / ACS550-U1 Error 4: SHORT CIRC

  SHORT CIRC occurs due to fault current from a short-circuit in motor cable(s) or motor. The manual's first action is: “Check for and correct: • A short-circuit in the motor cable(s) or motor. • Supply disturbances.”

• CodeABB ACS550-01 / ACS550-U1 Error 3: DEV OVERTEMP

  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. • Obstructi…

• CodeABB ACS550-01 / ACS550-U1 Error 2: DC OVERVOLT

  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 ti…