ABB ACH550 Error 17: UNDERLOAD

AC drive · taken from the manufacturer’s manual, pages cited

Fault code17

UNDERLOAD means the motor load is lower than expected, possibly from disconnected load or incorrect user load curve settings. The manual's first action is: “Check for and correct: Disconnected load. Group 37: USER LOAD CURVE.”

Model
ABB ACH550
Display shows
UNDERLOAD (17)
Type
Fault code
Source
Manual p. 25

What 17 means

UNDERLOAD p. 25

Common causes

  • Motor load is lower than expected. p. 25

What to do

  1. Check for and correct: Disconnected load. Group 37: USER LOAD CURVE. p. 25

Before you service the product, read the safety instructions in the manual p. 2.

If 17 is still not resolved

  • contact the factory or your local Authorized Service Center for repair or replacement. p. 2
    “Never attempt to repair a malfunctioning ACH550; contact the factory or your local Authorized Service Center for repair or replacement.”
Open the manual at page 25 All ACH550 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 17; 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.