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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.

4063

Encoder fault (_ecPOSSIBLE_ENCODER_FAULT)

ABB · Application Error ABB Motion Drives Error trouble shoo

What does 4063 mean?

This is a general encoder fault detected by the drive, indicating a potential issue with the encoder configuration, wiring, or the encoder's operational integrity. This can lead to inaccurate position or speed feedback.

Common Causes

  • Incorrect encoder parameters configured in the drive.
  • Damaged or incorrectly wired encoder cable.
  • Encoder malfunction or failure.
  • Electrical noise or interference affecting encoder signals.
  • Mechanical issues with the encoder mounting or shaft coupling.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check all encoder parameters in the drive configuration to ensure they match the installed encoder type and specifications.

  2. 2

    Inspect the encoder wiring for damage, loose connections, proper shielding, and ensure correct terminal assignments.

  3. 3

    Rotate the motor shaft by hand and observe encoder operation and signal integrity using diagnostic tools if available (e.g., Mint Workbench).

  4. 4

    Measure the voltage levels on the encoder power supply and signal lines to ensure they are within specification.

  5. 5

    Check for sources of electrical noise near the encoder cable and implement appropriate filtering or shielding measures.

Browse all codes in this manual (58)
Verified technical data. Last updated: April 2026

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Source: Application Error ABB Motion Drives Error trouble shoo
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