Mitsubishi Electric MELSEC iQ-R Series User Manual page 601

Error Error name Error details and cause
code
3C00H Hardware failure • A hardware failure has been detected.
3C01H
3C02H
3C03H
3C0FH
Stop/ Action
continue
Stop ■CPU module
• Take measures to reduce noise.
• Check the mounting status of the
CPU module, SIL2 function
module, and safety function
module.
• 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
• The possible cause is malfunction
due to noise. Take measures to
reduce noise by checking the
distance of wires and cables, and
the grounding status of each
device.
• 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.
■CPU module
• Take measures to reduce noise.
• Check the mounting status of the
CPU module, SIL2 function
module, and safety function
module.
• 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 or extended SRAM
cassette. Please consult your local
Mitsubishi representative.
■Redundant function module
• The possible cause is malfunction
due to noise. Take measures to
reduce noise by checking the
distance of wires and cables, and
the grounding status of each
device.
• 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.
Detailed Diagnostic
information timing
Failure Always
information
At power-on, at
RESET, at
END
instruction
execution, at
interrupt
occurrence
Always
36 ERROR CODES
599
36.4 List of Error Codes
36