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ErrorLib — Industrial Fault Code Library

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F8023

Error mechanical link of encoder or motor connection

Indramat · Indradrive

What does F8023 mean?

This error indicates a problem with the mechanical coupling between the encoder and the motor shaft, or a general issue with the motor's mechanical connection. This can lead to a discrepancy between the motor's actual rotation and the encoder's reported position, causing control instability.

Common Causes

  • Loose or damaged encoder coupling to the motor shaft.
  • Encoder mounting bracket is loose or broken.
  • Motor shaft play or damaged bearings causing radial/axial movement.
  • Encoder detaching from the motor or mounting.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Visually inspect the encoder coupling for tightness and damage; ensure it is securely fastened to both the encoder and motor shafts.

  2. 2

    Check the encoder mounting bracket for rigidity and proper alignment.

  3. 3

    Manually attempt to rotate the motor shaft and check for any abnormal play or mechanical looseness.

  4. 4

    Verify that the motor itself is securely mounted and its bearings are in good condition.

  5. 5

    Re-align or replace the encoder and/or coupling as necessary to ensure a rigid mechanical link.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

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Source: Indramat Indradrive
Open Manual (Page 7)Search more codes in this manual