Mitsubishi Electric · MELSEC iQ-R Motion Controller
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.
Click steps to track your progress.
Check the error cause with 'Motion CPU WDT error cause (SD512)' using MT Developer2 to diagnose the specific watchdog error.
Remove the identified error cause (e.g., correct program logic, optimize processing).