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34

Internal bus communication

Vacon · 20 Compact

¿Qué significa 34 ?

This fault signifies a problem with internal communication within the frequency converter, which can be caused by ambient electromagnetic interference or a defective hardware component.

Causas comunes

  • Ambient temperature exceeding specified limits.
  • Insufficient heatsink cooling or blocked airflow.
  • High harmonic distortion on the power supply.
  • Internal power stage fault.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Measure the temperature of the heatsink using an infrared thermometer.

  2. 2

    Verify fan operation and clean heatsink fins of debris.

  3. 3

    Check motor cable for grounding issues or damage.

  4. 4

    Measure the DC bus voltage during operation.

Ver todos los códigos en este manual (26)
Datos técnicos verificados. Última actualización: March 2026

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