F35

Ex-e protection operating mode

SEW Eurodrive · MOVITRAC 07B System

What does F35 mean?

An invalid operating mode was selected for Ex-e protection, or the Ex-e motor was not correctly integrated into the system. This fault triggers an immediate switch-off with inhibit, indicating a potential safety or operational violation for explosion-protected motors.

Common Causes

  • Operating mode selected that is not permitted for Ex-e protection (e.g., Flying start function, DC braking, Group operation)
  • Use of a parameter set other than parameter set 1 with Ex-e protection
  • Ex-e motor not properly commissioned or recognized by the system
  • Incorrect parameterization of frequency points (P561, P563, P565) where Frequency A is not < Frequency B, or B is not < Frequency C
  • Incorrect parameterization of current limits (P562, P564, P566) where Current limit A is not < Current limit B, or B is not < Current limit C

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure parameter set 1 is active for Ex-e operation.

  2. 2

    Verify the Ex-e motor has been correctly taken into operation and configured.

  3. 3

    Check parameters P561, P563, P565 to ensure Frequency A < Frequency B and Frequency B < Frequency C.

  4. 4

    Check parameters P562, P564, P566 to ensure Current limit A < Current limit B and Current limit B < Current limit C.

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Verified technical data. Last updated: March 2026

Related Faults

Source: SEW Eurodrive MOVITRAC 07B System