Mitsubishi Electric MELSEC iQ-R Series User Manual page 138

Error Error details and causes
code
24C8H An error was detected on the system bus.
300EH A hardware failure has been detected.
3C00H The system watchdog timer controlled by the system
detected an error. Or, an error occurred in the system
software.
• The monitoring time of the system watchdog timer is
too short.
• A task of high CPU utilization is running.
• A program that will cause an error in the memory or
stack was executed.
• An operation (writing parameters) that will increase
the CPU utilization of the system task was executed.
• The station using station-based block data
assurance of the network was accessed when a
stop error had occurred.
• The CPU module runs out of control or has broken
down. (A malfunction or hardware error by noise or
other causes)
3C01H to A hardware failure has been detected.
3C03H
3C0FH A hardware failure has been detected.
3C22H An error was detected in the memory.
3C2FH An error was detected in the memory.
3E08H A hardware failure has been detected.
3E09H A hardware failure has been detected.
3E0EH An error was detected in the memory.
5 TROUBLESHOOTING
136
5.6 List of Error Codes
Action
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the RJ71PN92 or extension
cable. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
• Reset the CPU module.
• Decrease the CPU utilization of the task with high
CPU utilization. Or, disable the task operation.
• Check and correct the user program.
• Taking into account the CPU utilization of the
system task, sufficiently prolong the user watchdog
timer monitoring time.
• Check and correct the user program so that the
station using station-based block data assurance of
the network is not accessed when a stop error
occurs.
• Take measures to reduce noise.
• Check if the RJ71PN92 is securely mounted on the
base unit and the environment is within the general
specification range.
If the error occurs again even after the above is taken,
the possible cause is a hardware failure of the CPU
module. Please consult your local Mitsubishi
representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
• Take measures to reduce noise.
• Format the memory. After that, write all the files and
reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
• Take measures to reduce noise.
• Reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
• Take measures to reduce noise.
• Format the memory. After that, write all the files and
reset the CPU module. If the error occurs again
even after the above is taken, the possible cause is
a hardware failure of the CPU module. Please
consult your local Mitsubishi representative.
Detailed Information
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Failure information
Failure information
Failure information
Failure information
Failure information
Failure information
Failure information
Failure information
Failure information