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940

Field Current Feedback A/D Saturated

Otis · DSD 412 Elevator System

¿Qué significa 940 ?

This fault occurs when the Field Analog-to-Digital (A/D) converter reading remains saturated for more than 15 seconds, indicating an issue with the field current feedback circuit.

Causas comunes

  • Component problem with the Field Interface Board.
  • Problem with the Ribbon Cable (J33) connecting components.
  • Component problem with the Main Control Board.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Replace the Field Interface Board.

  2. 2

    Replace the Ribbon Cable (J33).

  3. 3

    If the fault is still present after these steps, replace the Main Control Board.

Ver todos los códigos en este manual (57)
Datos técnicos verificados. Última actualización: March 2026

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