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1003

CPU Down Error

Mitsubishi Electric · MELSEC System Q/L Series

¿Qué significa 1003 ?

The CPU module has experienced a runaway condition or failure, potentially due to electrical noise interference or a fundamental hardware fault within the module. This condition indicates the CPU is no longer operating correctly.

Causas comunes

  • Runaway or failure of CPU module.
  • Malfunctioning due to noise or other external reasons.
  • Hardware fault within the CPU module.

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