4506

Following error window (position) not allowed

Beckhoff · TwinCAT 2 NC

What does 4506 mean?

The value configured for the following error window (maximum allowable position following error) is not allowed, as it must be within the range [0.0, 10000.0]. This parameter defines the maximum permissible deviation between the target and actual position. An invalid window can cause false fault triggers or fail to detect actual tracking errors, risking collisions.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Adjust the window to an appropriate value based on mechanical play, encoder resolution, and required positioning accuracy.

  2. 4

    Save configuration changes and restart the NC system.

Source: Beckhoff TwinCAT 2 NC
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