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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

44

Device Changed (Different Type)

Vacon · NX All-in-One Application

What does 44 mean?

This fault occurs when an option board or the main power unit has been replaced with a device of a different type or power rating. The drive detects a mismatch in hardware configuration, requiring re-parameterization to ensure correct operation.

Common Causes

  • A device detected on the network or bus is of a different type than expected.
  • Incorrect device replacement or configuration mismatch.
  • Auto-detection failed due to incompatible hardware.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Perform a drive reset.

  2. 2

    If an option board was changed, reconfigure all relevant option board parameters.

  3. 3

    If the power unit was changed, reconfigure all relevant AC drive parameters to match the new hardware.

Browse all codes in this manual (42)
Verified technical data. Last updated: April 2026

Related Faults

1Overcurrent10Input line supervision11Output phase supervision
Source: Vacon NX All-in-One Application
Open Manual (Page 376)Search more codes in this manual