Mitsubishi QJ71LP21 Reference Manual page 255

8 TROUBLESHOOTING
Error
Code Error Contents and Cause
*1
(SD0)
The sequence program storing built-in
1101 RAM/program memory in the CPU
module is faulty.
The work area RAM in the CPU
1102
module is faulty.
The device memory in the CPU
1103
module is faulty.
The address RAM in the CPU module
1104
is faulty.
The system RAM in the CPU module
is faulty.
The CPU memory in the CPU module
is faulty.
1105
The CPU shared memory in the CPU
module is faulty.
The battery is dead.
1106 The program memory in the CPU
module is faulty.
1107
The work area RAM in the CPU
module is faulty.
1108
A fault was detected by the initial
1110
check of the tracking hardware.
A tracking hardware fault was
1111
detected.
*1 Characters in parentheses ( ) indicate the special register numbers where individual information is being
:
stored.
*12 his applies to the CPU module of function version B or later.
:
*18 SerialNo.(with the first 5 digits : 07032 or later) is applicable.
:
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Corrective Action
This suggests a CPU module
hardware fault. (Contact your nearest
Mitsubishi representative.)
• Take noise reduction measures.
• Reset the CPU module and RUN it
again.If the same error is displayed
again, this suggests a CPU module
hardware fault. (Contact your local
Mitsubishi representative.)
• Check the battery to see if it is dead
or not. If dead, replace the battery.
• Take noise reduction measures.
• Format the program memory, write
all files to the PLC, then reset the
CPU module, and RUN it again.
If the same error is displayed again,
the possible cause is a CPU module
hardware fault. (Contact your local
Mitsubishi representative, explaining
a detailed description of the
problem.)
This suggests a CPU module
hardware fault. (Contact your local
Mitsubishi representative.)
MELSEC-Q
Corresponding
CPU
Q4AR
Q00J/Q00/Q01
*12
Qn(H)
QnPH
QnPRH
Qn(H)
*18
QnPH
QnPRH
QnPRH
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