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231-A091

Drive lock through safety software (MC)

Heidenhain · TNC CNC Controllers

¿Qué significa 231-A091 ?

This error indicates that a drive (or multiple drives) has been locked by the safety software of the MC (Machine Control) module. This occurs when an emergency stop is active (due to -ES.A or -NE1 signal) and an attempt is made to switch on a drive, or due to an internal software error.

Causas comunes

  • Emergency stop activated (by MC) via -ES.A or -NE1 signal.
  • Attempt to switch on a drive while the system is in an 'emergency stop' condition.
  • Internal software error within the MC module.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Verify the status of the emergency stop circuit and the -ES.A or -NE1 signals. Ensure the E-stop is reset.

  2. 2

    Check the wiring of the emergency stop circuit to the MC module for integrity, shorts, or breaks.

  3. 3

    Confirm that all safety doors and interlocks are closed and secured, as they might trigger an emergency stop condition.

  4. 4

    Verify the software version of the MC module and update it if a known bug fix is available.

Ver todos los códigos en este manual (47)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Fuente: Heidenhain TNC CNC Controllers