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ErrorLib — Industrial Fault Code Library

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42EC

GROUPERR_RANGE_OVERRIDECHANGETIME

Beckhoff · TwinCAT 2 NC

What does 42EC mean?

The 'Override Change Time' parameter configured for the group is outside its allowed range of 0.0 ... 1000.0] seconds. This parameter controls the ramp rate or filter time when an override value is changed, and an invalid setting can result in abrupt motion changes, jerky movements, or delayed override responses.

Common Causes

  • Manual data entry error, assigning 'Override Change Time' a value less than 0.0 seconds or greater than 1000.0 seconds.
  • PLC logic or HMI attempting to write an out-of-range value to the 'Override Change Time' parameter.
  • Restored backup configuration containing an invalid 'Override Change Time' value due to a previous system error or manual modification.
  • Software library incompatibility causing an incorrect default or assigned value for 'Override Change Time' during initialization.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    1. Open the NC group configuration editor in the engineering environment.

  2. 2

    2. Identify the 'Override Change Time' parameter for the specific NC group.

  3. 3

    3. Input a value for 'Override Change Time' that falls within the specified range of [0.0 ... 1000.0] seconds.

  4. 4

    4. Apply the configuration changes and download them to the target runtime system.

  5. 5

    5. Reinitialize the NC group or restart the controller to ensure the new parameter value is active.

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

Related Faults

4000Internal error4001Memory error4002Nc retain data error (persistent data)
Source: Beckhoff TwinCAT 2 NC
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