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1020

SFC Program End Error

Mitsubishi Electric · MELSEC System Q/L Series

¿Qué significa 1020 ?

The SFC (Sequential Function Chart) program cannot be terminated normally. This issue may be caused by electrical noise interference or other unspecified reasons preventing the SFC program from concluding its execution sequence.

Causas comunes

  • SFC program cannot be normally terminated due to noise.
  • SFC program cannot be normally terminated for any other reason.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Implement noise reduction measures for the control system environment.

  2. 2

    Reset the CPU module and attempt to RUN it again.

  3. 3

    If the same error is displayed again after resetting, diagnose for a CPU module hardware fault.

Ver todos los códigos en este manual (53)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Fuente: Mitsubishi Electric MELSEC System Q/L Series