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ErrorLib — Industrial Fault Code Library

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F109-186

EMU1 monitoring fault

SEW Eurodrive · MOVIDRIVE MDX60B/61B Variable Speed Drive

What does F109-186 mean?

Faulty monitoring of the external shutdown channel EMU1. This may be due to incorrect hardware connections or an inappropriately short pick-up or release time for the channel.

Common Causes

  • Over-temperature condition detected by EMU1 module.
  • Faulty thermal sensor reading from EMU1.
  • EMU1 module internal fault.
  • Insufficient cooling to the EMU1 module.
  • Parameter P1082 (EMU1 monitoring) set incorrectly.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check hardware connections.

  2. 2

    Check switch contacts.

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
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