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InF3

Internal Serial Link Interruption

Schneider Electric · Altivar Machine ATV320 Variable Speed Drive

¿Qué significa InF3 ?

An interruption in the internal serial link communication. This refers to communication between internal sub-components of the drive (e.g., control board and I/O board). This critical internal fault can lead to unpredictable behavior or complete operational failure.

Causas comunes

  • Loss of communication over the internal serial link between drive modules.
  • Faulty serial cable or connector between the control and power sections.
  • Electromagnetic interference disrupting serial data transmission.
  • Failure of the serial transceiver on one of the connected modules.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Power cycle the drive to attempt re-establishment of the internal link.

  2. 2

    Check for any visible damage or loose connections between internal boards and ribbon cables.

  3. 3

    If the fault persists, it suggests an internal hardware issue on one of the boards, possibly requiring replacement.

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Datos técnicos verificados. Última actualización: March 2026

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Fuente: Schneider Electric Altivar Machine ATV320 Variable Speed Drive