Mitsubishi Electric MELSEC iQ-R Series User Manual page 492

Corrective actions for system error
1.
Check if the C24, the power module, and the CPU module are mounted correctly.
2.
Check if the environment of the C24 usage is within the range of the general specifications for the CPU module.
3.
Check if the power supply capacity is sufficient.
4.
Check if the hardware of the C24 and the CPU module is normal according to the respective module manual. In case of
a malfunction, please contact your local Mitsubishi representative for service.
5.
If the problem is still not solved, please consult your local Mitsubishi representative, explaining a detailed description of
the problem.
27 TROUBLESHOOTING
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27.4 Error Code List