Mitsubishi QJ71LP21 User Manual

8 TROUBLESHOOTING
MELSEC-Q
8 - 44 8 - 44
*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.
Error
Code
(SD0)
*1
Error Contents and Cause Corrective Action
Corresponding
CPU
1101
The sequence program storing built-in
RAM/program memory in the CPU
module is faulty.
This suggests a CPU module
hardware fault. (Contact your nearest
Mitsubishi representative.)
1102
The work area RAM in the CPU
module is faulty.
1103
The device memory in the CPU
module is faulty.
1104
The address RAM in the CPU module
is faulty.
1105
The system RAM in the CPU module
is faulty.
Q4AR
The CPU memory in the CPU module
is faulty.
Q00J/Q00/Q01
The CPU shared memory in the CPU
module is faulty.
• 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.)
Qn(H)
*12
QnPH
QnPRH
1106
The battery is dead.
The program memory in the CPU
module is faulty.
• 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.)
Qn(H)
QnPH
*18
QnPRH
1107
The work area RAM in the CPU
module is faulty.
This suggests a CPU module
hardware fault. (Contact your local
Mitsubishi representative.)
QnPRH
1108
1110
A fault was detected by the initial
check of the tracking hardware.
1111
A tracking hardware fault was
detected.

Mitsubishi QJ71LP21 Specifications

General

Brand	Mitsubishi
Model	QJ71LP21
Category	Controller
Language	English