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ErrorLib — Industrial Fault Code Library

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231-A043

CC%2 SOM 2 only one axis allowed

Heidenhain · TNC CNC Controllers

What does 231-A043 mean?

This error indicates that in operating mode BA2, with open safety doors, the simultaneous movement of more than one axis is not allowed. The controller has detected an attempt to move multiple axes under these restricted conditions.

Common Causes

  • Simultaneous movement of more than one axis attempted in operating mode BA2 with open safety doors.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure all axes are at a complete standstill before attempting to move any single axis in operating mode BA2 with open safety doors.

  2. 2

    Only initiate movement for one axis at a time in operating mode BA2 when safety doors are open.

  3. 3

    Close the safety doors if simultaneous multi-axis movement is required.

  4. 4

    Review the machine's safety manual for specific restrictions and procedures in operating mode BA2.

Browse all codes in this manual (47)
Verified technical data. Last updated: April 2026

Related Faults

231-A001Cancelation of brake-test call monitoring231-A002Cancelation of brake-line-test call monitoring231-A003SPLC commissioning mode active
Source: Heidenhain TNC CNC Controllers
Open Manual (Page 456)Search more codes in this manual