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22. TROUBLE SHOOTING
1105
[RAM ERROR]
The system RAM in the CPU module is faulty.
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/At reset
• 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.)
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
Q4AR
1200
[OPE. CIRCUIT ERR.]
The operation circuit for index modification in the
CPU module does not operate normally.
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/At reset
This suggests a CPU module hardware fault.
(Contact your local Mitsubishi representative.)
QnA1201
[OPE. CIRCUIT ERR.]
The hardware (logic) in the CPU module does not
operate normally.
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/At reset
1202
[OPE. CIRCUIT ERR.]
The operation circuit for sequence processing in
the CPU module does not operate normally.
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/At reset
1203
[OPE. CIRCUIT ERR.]
The operation circuit for index modification in the
CPU module does not operate normally.
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• When an END instruction executed
Q4AR
1204
[OPE. CIRCUIT ERR.]
The hardware (logic) in the CPU module does not
operate normally.
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• When an END instruction executed
1205
[OPE. CIRCUIT ERR.]
The operation circuit for sequence processing in
the CPU module does not operate normally.
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• When an END instruction executed
QnA
Error
Code
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU
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