ABB ACH550 Error 3021: PH A CURR FBK

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

Fault code3021

PH A CURR FBK indicates loose CT connection on phase A current feedback. The manual's first action is: “Check J2 connector for proper seating”

Model
ABB ACH550
Display shows
PH A CURR FBK (3021)
Type
Fault code
Source
Manual p. 69

What 3021 means

PH A CURR FBK p. 69

Common causes

  • Loose CT connection p. 69

What to do

  1. Check J2 connector for proper seating p. 69

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

If 3021 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 69 All ACH550 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 3021; 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.