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W
Watchdog Timer Error
Mitsubishi Electric · MELSEC iQ-R Motion Controller
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This error indicates a watchdog timer fault, where the system's watchdog mechanism has not been reset within its expected interval. This typically points to a software malfunction or an unresponsive process within the Motion CPU module, or a hardware error.
Vanlige årsaker
- Software malfunction causing the watchdog timer to expire
- Unresponsive process within the Motion CPU module
- Hardware error impacting watchdog timer operation
Reparasjonssteg & Sjekkliste
Klikk på steg for å spore fremgangen.
- 1
Check the error cause with 'Motion CPU WDT error cause (SD512)' using MT Developer2 to diagnose the specific watchdog error.
- 2
Remove the identified error cause (e.g., correct program logic, optimize processing).
Verifisert teknisk data. Sist oppdatert: March 2026
Relaterte feilkoder
Kilde: Mitsubishi Electric MELSEC iQ-R Motion Controller