ABB ACH550 Error 2004: DIR LOCK

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

Fault code2004

The drive has blocked a direction change attempt because the system is not permitted to reverse direction at this time. The manual's first action is: “Either: • Do not attempt to change the direction of motor rotation, or • Change parameter 1003 DIRECTION to allow direction change (if reverse operation is safe).”

Model
ABB ACH550
Display shows
DIR LOCK (2004)
Type
Fault code
Source
Manual p. 29

What 2004 means

DIR LOCK p. 29

Common causes

  • The change in direction being attempted is not allowed. p. 29

What to do

  1. Either: • Do not attempt to change the direction of motor rotation, or • Change parameter 1003 DIRECTION to allow direction change (if reverse operation is safe). p. 29

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

If 2004 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 29 All ACH550 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 2004; 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.