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ErrorLib — Industrial Fault Code Library

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F109-70

Faulty switching behavior of the low-side driver DO0_M

SEW Eurodrive · MOVIDRIVE MDX60B/61B Variable Speed Drive

What does F109-70 mean?

A DC 0 V short circuit has been detected at the digital output DO0_M (X82:2) from the low-side driver. This indicates an electrical fault on the output channel.

Common Causes

  • Low-side driver for digital output DO0_M is not switching correctly.
  • Short circuit or open circuit on DO0_M output.
  • Defective driver component for DO0_M.
  • Incorrect logic level driving the DO0_M transistor.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check wiring at digital output DO0_M (X82:2).

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

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Source: SEW Eurodrive MOVIDRIVE MDX60B/61B Variable Speed Drive
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