Mitsubishi Electric · MELSEC System Q/L Series
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.
Click steps to track your progress.
Implement noise reduction measures for the control system environment.
Reset the CPU module and attempt to RUN it again.
If the same error is displayed again after resetting, diagnose for a CPU module hardware fault.