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ErrorLib — Industrial Fault Code Library

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F109-166

Plausibility fault SSI encoder connection (slave mode)

SEW Eurodrive · MOVIDRIVE MDX60B/61B Variable Speed Drive

What does F109-166 mean?

The connected encoder type does not correspond to the configuration for an SSI encoder operating in slave mode. This indicates a mismatch in setup.

Common Causes

  • Faulty SSI encoder connection in slave mode.
  • Incorrect wiring of SSI encoder signals (clock, data).
  • Parameter P0205 setting for SSI slave mode incorrect.
  • SSI encoder data transmission errors or timeout.
  • Clock signal issue from the SSI encoder to the slave drive.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check encoder connection and cabling.

  2. 2

    Check the connected encoder.

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

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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 217)Search more codes in this manual