Mitsubishi MELSEC Q Series Programming Manual

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12.1 Error Code List 12.1.3 Error code list (1000 to 1999)
1163
[RAM ERROR]
Data in the program memory of the CPU module
were overwritten.
■Collateral information
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• When instruction executed
• Take noise reduction measures.
• For GX Works2, select "Transfer cache memory
to program memory" in the Options dialog box.
For GX Developer, select "Online change T/C
setting value change program memory transfer
settings" in the Options dialog box.
Format the program memory, write all files to the
CPU module, and run it again.
If the same error code is displayed again, the
cause is a hardware failure of the CPU module.
(Please consult your local Mitsubishi
representative, explaining a detailed description of
the problem.)
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
QnU
1164
[RAM ERROR]
The destruction of the data stored in the standard
RAM is detected.
■Collateral information
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• When instruction executed
Take noise reduction measures.
If the same error code is displayed again, the
cause is a hardware failure of the CPU module.
(Please consult your local Mitsubishi
representative, explaining a detailed description of
the problem.)
QnU
*22
L26CPU-BT
1170
[RAM ERROR]
The RAM of the CPU module (built-in I/O) is faulty.
■Collateral information
• Common Information:-
• Common Information: Failure information
■Diagnostic Timing
• At power-on/At reset
LCPU
1171
[RAM ERROR]
The RAM of the CPU module (built-in I/O) is faulty.
■Collateral information
• Common Information:-
• Common Information: Failure information
• Diagnostic Timing
• Always
1172
[RAM ERROR]
The RAM of the CPU module (built-in I/O) is faulty.
■Collateral information
• Common Information:-
• Individual information: Failure information
■Diagnostic Timing
• At power-on/At reset
LCPU
1200
[OPE. CIRCUIT ERR.]
The operation circuit for index modification in the
CPU module does not operate normally.
■Collateral information
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• At power-on/At reset
The cause is a hardware failure of the CPU
module. (Please consult your local Mitsubishi
representative, explaining a detailed description of
the problem.)
QCPU
LCPU
1201
[OPE. CIRCUIT ERR.]
The hardware (logic) in the CPU module does not
operate normally.
■Collateral information
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• At power-on/At reset
Error
Code
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English