EL
ErrorLib
Brands
||
  1. Home
  2. SEW Eurodrive
  3. MOVIDRIVE MDX60B/61B Variable Speed Drive
  4. F109-60
About·Privacy·Terms

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.

F109-60

Plausibility fault in the incremental encoder connection

SEW Eurodrive · MOVIDRIVE MDX60B/61B Variable Speed Drive

What does F109-60 mean?

A phase fault has occurred in the incremental or SIN/COS encoder connection. This indicates an issue with the signal integrity from the encoder.

Common Causes

  • Faulty incremental encoder signal (A, B, Z) or missing pulses.
  • Incorrect wiring of the incremental encoder inputs.
  • Mechanical detent or backlash affecting encoder count.
  • Noise on the incremental encoder lines.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check encoder connection.

  2. 2

    Replace defective encoder.

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

Related Faults

F108-101Internal processing fault PROFIsafeF108-103Internal processing fault PROFIsafeF108-105Internal processing fault PROFIsafe
Source: SEW Eurodrive MOVIDRIVE MDX60B/61B Variable Speed Drive
Open Manual (Page 214)Search more codes in this manual