Mitsubishi Electric MELSEC iQ-R Series User Manual page 603

Error Error name Error details and cause
code
3C20H Memory error • An error has been detected in the
memory.
3C21H
3C22H
3C2FH
3C30H Memory error • An error has been detected in the
memory.
3C31H Memory error • An error has been detected in the
memory.
3C32H Memory error • An error has been detected in the
memory.
Stop/ Action
continue
Stop • Take measures to reduce noise.
• Check the mounting status of the
CPU module.
• Format the memory. Write all files
to the CPU module. Then, reset
the CPU module and run it again If
the same error code is displayed
again, the possible cause is a
hardware failure of the CPU
module. Please consult your local
Mitsubishi representative.
■CPU module
• Take measures to reduce noise.
• Check the mounting status of the
CPU module.
• Format the memory. Write all files
to the CPU module. Then, reset
the CPU module and run it again If
the same error code is displayed
again, the possible cause is a
hardware failure of the CPU
module. Please consult your local
Mitsubishi representative.
■Redundant function module
• Execute a module communication
test. If the same error code is
displayed again, the possible
cause is a hardware failure of the
redundant function module.
Please consult your local
Mitsubishi representative.
Stop • Take measures to reduce noise.
• Check the mounting status of the
CPU module.
• Format the memory. Write all files
to the CPU module. Then, reset
the CPU module and run it again If
the same error code is displayed
again, the possible cause is a
hardware failure of the CPU
module. Please consult your local
Mitsubishi representative.
Stop • Take measures to reduce noise.
• Check the mounting status of the
CPU module.
• Format the memory. Write all files
to the CPU module. Then, reset
the CPU module and run it again If
the same error code is displayed
again, the possible cause is a
hardware failure of the CPU
module. Please consult your local
Mitsubishi representative.
Stop • Take measures to reduce noise.
• Check the mounting status of the
CPU module.
• Format the memory. Write all files
to the CPU module. Then, reset
the CPU module and run it again If
the same error code is displayed
again, the possible cause is a
hardware failure of the CPU
module. Please consult your local
Mitsubishi representative.
Detailed Diagnostic
information timing
Failure At power-on, at
information RESET
At END
instruction
execution, at
power-on, at
RESET
Always
Failure At instruction
information execution
Failure Always
information
Failure Always
information
36 ERROR CODES
601
36.4 List of Error Codes
36