Mitsubishi MELSEC Q Series Programming Manual

12-8
1035
[MAIN CPU DOWN]
Runaway or failure of the CPU module
• Malfunction due to noise etc.
• Hardware failure
■Collateral information
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• Always
• Take noise reduction measures.
• Reset the CPU module and run it again. If the
same error code is displayed again, the cause is
a 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
[CPU UNIT DOWN]
Runaway or failure of the CPU module
• Malfunction due to noise etc.
• Hardware failure
■Collateral information
• Common Information:-
• Individual Information: Failure information
• Diagnostic Timing
• Always
LCPU
1040 [CPU UNIT DOWN]
Runaway or failure of the CPU module (built-in I/
O).
• Malfunction due to noise etc.
• Hardware failure
■Collateral information
• Common Information:-
• Individual Information: Failure information
■Diagnostic Timing
• Always
• Take noise reduction measures.
• Reset the CPU module and run it again. If the
same error code is displayed again, the cause is
a failure of the CPU module. (Please consult
your local Mitsubishi representative, explaining
a detailed description of the problem.)
LCPU
1041
1042
1101
[RAM ERROR]
The sequence program storing program memory
in the CPU module is faulty.
■Collateral information
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• At power-on/At reset/When an END instruction
executed
• Take noise reduction measures.
• Reset the CPU module and run it again. If the
same error code is displayed again, the cause is
a hardware failure of the a CPU module.
(Please consult your local Mitsubishi
representative, explaining a detailed description
of the problem.)
QCPU
LCPU
1102
[RAM ERROR]
• The work area RAM in the CPU module is
faulty.
• The standard RAM in the CPU module is faulty.
■Collateral information
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• At power-on/At reset/When an END instruction
executed
QCPU
LCPU
1103
[RAM ERROR]
The device memory in the CPU module is faulty.
■Collateral information
• Common Information:-
• Individual Information:-
■Diagnostic Timing
• At power-on/At reset/When an END instruction
executed
• 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 code is displayed again, the cause is
a hardware failure of the a CPU module.
(Please consult your local Mitsubishi
representative, explaining a detailed description
of the problem.)
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
QCPU
LCPU
[RAM ERROR]
• The device memory in the CPU module is faulty.
• The device out of range is accessed due to
indexing, and the device for system is
overwritten.
■Collateral information
• Common Information:-
• Individual information:-
■Diagnostic Timing
• At power-on/At reset/When an END instruction
executed
Qn(H)
*13
QnPH
*13
QnPRH
*15
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