42F1

Invalid reduction parameter for auxiliary axes

Beckhoff · TwinCAT 2 NC

What does 42F1 mean?

The velocity reduction parameters configured for the auxiliary axes are inconsistent or invalid. These parameters dictate how the velocities of auxiliary axes are scaled relative to primary axes, and incorrect settings can result in unintended speeds, motion errors, or violations of kinematic constraints.

Complete Troubleshooting Guide

  1. 1

    Review the velocity reduction parameters for all auxiliary axes in the NC configuration.

  2. 2

    Ensure these parameters are correctly defined, consistent, and within the expected ranges.

  3. 3

    Correct any inconsistent or out-of-range values.

  4. 4

    Save the configuration changes and restart the NC system.