ABB ACH550 Error 1003: PAR AI SCALE

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

Fault code1003

PAR AI SCALE indicates inconsistent parameter values for analog input scaling ranges. The manual's first action is: “Check for any of the following: 1301 AI 1 MIN > 1302 AI 1 MAX. 1304 AI 2 MIN > 1305 AI 2 MAX.”

Model
ABB ACH550
Display shows
PAR AI SCALE (1003)
Type
Fault code
Source
Manual p. 28

What 1003 means

PAR AI SCALE p. 28

Common causes

  • Parameter values are inconsistent. p. 28

What to do

  1. Check for any of the following: 1301 AI 1 MIN > 1302 AI 1 MAX. 1304 AI 2 MIN > 1305 AI 2 MAX. p. 28

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

If 1003 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 28 All ACH550 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 1003; 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.