Heidenhain codes
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Heidenhain Controller

Drive · Intermediate · 30-120 minutes

Alarm 231-A002

HEIDENHAIN 231-A002 - A002 Cancelation of brake-line-test call monitoring

This TNC 640 error relates to the motor brake system. The control has detected an issue with brake operation or testing.

HeidenhainDriveIntermediate30-120 minutes

231-A002

HEIDENHAIN 231-A002 - A002 Cancelation of brake-line-test call monitoring

A002 Cancelation of brake-line-test call monitoring

This TNC 640 error relates to the motor brake system. The control has detected an issue with brake operation or testing.

Safety

  • Refer to Heidenhain service manual
  • Ensure qualified technician performs repairs

Common Causes

  • Guard door(s) were open during the brake control

Troubleshooting Steps

  1. 1Note the full error text and the NC software number of the control.
  2. 2Contact your machine builder or HEIDENHAIN service.

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Always verify with your machine manual or a certified technician before performing service procedures.