ABB ACS550-01 / ACS550-U1 Error 9: MOT OVERTEMP

ACS550-01/U1 drive · taken from the manufacturer’s manual, pages cited

Fault code9

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). • Check the temperature sensors and Group 35: MOTOR TEMP MEAS parameters.”

Model
ABB ACS550-01 / ACS550-U1
Display shows
MOT OVERTEMP (9)
Type
Fault code
Source
Manual p. 245

What 9 means

MOT OVERTEMP p. 261

Common causes

  • Motor is too hot, based on either the drive's estimate or on temperature feedback. p. 261

What to do

  1. • Check for overloaded motor. • Adjust the parameters used for the estimate (3005...3009). • Check the temperature sensors and Group 35: MOTOR TEMP MEAS parameters. p. 261

Before you service the product, read the safety instructions in the manual p. 6.

If 9 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.”
Open the manual at page 245 All ACS550-01 / ACS550-U1 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 9; 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.