Mitsubishi Melsec-Q Series User Manual page 362

Error
Error Contents and Cause
Code
[RAM ERROR]
The device memory in the CPU module is faulty.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
[RAM ERROR]
• The device memory in the CPU module is faulty.
1103
• The device out of range is accessed due to
indexing, and the device for system is overwrit-
ten.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset/ When an END instruction
executed
[RAM ERROR]
The address RAM in the CPU module is faulty.
■Collateral information
• Common Information:–
1104
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
[RAM ERROR]
The CPU memory in the CPU module is faulty.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
1105
[RAM ERROR]
The CPU shared memory in the CPU module is
faulty.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
[RAM ERROR]
The battery is dead.
The program memory in the CPU module is faulty.
■Collateral information
• Common Information:–
1106
• Individual Information:–
■Diagnostic Timing
• STOP RUN/When an END instruction exe-
cuted
*4 Function version is B or later.
*7 The module whose first 5 digits of serial No. is "07032" or later.
*8 The module whose first 5 digits of serial No. is "08032" or later.
*9 The module whose first 5 digits of serial No. is "09012" or later.
12 - 67
Corrective Action
• Take noise reduction measures.
• When indexing is performed, check the value of
index register to see if it is within the device
range.
• 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.)
• 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.)
• 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.)
LED Status Corresponding
CPU Status CPU
QCPU
*8
Qn(H)
*8
QnPH
QnPRH
QCPU
RUN:
Off
ERR.:
Flicker
CPU Status:
Q00J/Q00/Q01
Stop
QnU
*4
Qn(H)
QnPH
QnPRH
QnU
Qn(H)
*7
QnPH
QnPRH
*9