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7000

Multiple CPU System Down (CPU Error/Incompatibility)

Mitsubishi Electric · MELSEC System Q/L Series

Hva betyr 7000 ?

This error indicates a system shutdown in a multiple CPU configuration due to a CPU error in a module where 'All station stop by stop error of CPU' is selected. It can also occur if an incompatible CPU module is mounted, or if CPU modules other than CPU No.1 are removed or reset during operation. This fault results in the multiple CPU system stopping.

Vanlige årsaker

  • A CPU error occurred at a CPU where 'All station stop by stop error of CPU' was selected in the operating mode.
  • A CPU module incompatible with the multiple CPU system was mounted.
  • CPU modules other than CPU No.1 were physically removed from the base unit during operation or unexpectedly reset.

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Use the programming tool to read the individual error information, identify the specific error of the CPU module, and address its root cause.

  2. 2

    Remove any CPU module identified as incompatible with the multiple CPU system from the main base unit.

  3. 3

    Inspect the mounting status of all CPU modules, especially verifying that CPU modules other than CPU No.1 are correctly installed and powered.

  4. 4

    Check system logs to confirm whether CPU modules (other than CPU No.1) were reset inadvertently.

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Verifisert teknisk data. Sist oppdatert: March 2026

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Kilde: Mitsubishi Electric MELSEC System Q/L Series