No brake test was conducted %1

What does 231-F100 mean?

This error occurs when the Machine Control (MC) unit of the Heidenhain TNC CNC Controller fails to perform a required motor brake test, even though it is mandated by parameter settings. The test might also exceed its maximum allowed duration of 5 seconds. This indicates a potential safety risk, as the integrity and proper function of the motor brakes cannot be verified.

• Incorrect parameter settings requiring a brake test, where the conditions for its execution are not met or are misinterpreted by the controller.
• A mechanical malfunction of the motor brake mechanism itself, preventing it from engaging or disengaging properly for the test.
• An issue with the brake control circuitry or feedback signals, leading to the MC unit not detecting proper brake response.
• The brake test sequence taking longer than the allowed 5 seconds, indicating a mechanical delay, electrical fault, or insufficient brake torque.

Click steps to track your progress.

1. 1

   Verify that the parameters related to motor brake testing are correctly configured in the Heidenhain TNC CNC Controller and that brake tests are indeed required for the specific machine application.

2. 2

   Inspect the motor brake(s) for any mechanical issues, excessive wear, contamination, or damage that might prevent proper operation.

3. 3

   Check the wiring and control signals for the motor brake(s) for continuity, correct voltage levels during activation, and proper feedback signals.

4. 4

   Monitor the brake test sequence (if possible via controller diagnostics) to identify any delays or failures in activation or deactivation that exceed the 5-second limit.

5. 5

   If all external checks are inconclusive, contact a Heidenhain service agency for further diagnostics on the MC unit or the associated drive system responsible for brake control.