2933 E008

SRG speed too high

Heidenhain · NC Control

What does 2933 E008 mean?

The Safe Reduced Rotational Velocity (SRG) was exceeded, or the system failed to achieve a standstill in the Safe Controlled Stop (SBH) operating mode. This indicates a violation of safety speed limits.

Common Causes

  • Safe reduced rotational velocity (SRG) was exceeded.
  • No standstill in safe controlled stop (SBH) operating mode.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify that all safety-related parameters for SRG (Safe Reduced Speed) and SBH (Safe Controlled Stop) are correctly configured according to the machine's safety manual.

  2. 2

    Check the function of safety inputs and sensors (e.g., door interlocks, enabling switches) that influence SRG and SBH modes for proper operation.

  3. 3

    Monitor the actual axis speed during operation in SRG/SBH mode to identify precisely when the limit is exceeded.

  4. 4

    Inspect the drive and encoder feedback systems for the affected axis to ensure accurate speed measurement and reliable control.

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Verified technical data. Last updated: March 2026

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