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CPU Down Error

Mitsubishi Electric · MELSEC System Q/L Series

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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.

Häufige Ursachen

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

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  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.

Alle Codes in diesem Handbuch durchsuchen (53)
Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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Quelle: Mitsubishi Electric MELSEC System Q/L Series