Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual page 762

Error Error name
code
3E60H Safety mutual
monitoring error
3E61H
3E68H Hardware failure
APPX
760
Appendix 1 Error Codes
Error details and cause
■SIL2 Process CPU, SIL2 function
module
• A hardware failure has been
detected in the mutual monitoring
between the SIL2 Process CPU
and SIL2 function module.
■Safety CPU, safety function
module
• A hardware failure has been
detected in the mutual monitoring
between the Safety CPU and
safety function module.
• A hardware failure has been
detected.
Stop/ Action
continue
Stop • 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 module (SIL2 function module or
safety function module) connected.
Please consult your local Mitsubishi
representative.
Stop • Take measures to reduce noise.
• Check the mounting status of the CPU
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.
Detailed Diagnostic
information timing
Failure At power-on,
information at RESET, at
interrupt
occurrence
Always
Failure Always
information