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12-8
1115
[TRK. CIR. ERROR]
A fault was detected by the initial check of the
tracking hardware.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
This suggests a CPU module hardware fault.
(Contact your nearest Mitsubishi representative.)
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
QnPRH
1116
[TRK. CIR. ERROR]
A tracking hardware fault was detected during
running.
• The tracking cable was disconnected and
reinserted without the standby system being
powered off or reset.
• The tracking cable is not secured by the
connector fixing screws.
• The error occurred at a startup since the
redundant system startup procedure was not
followed.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• During running
• Start after checking that the tracking cable is
connected.
If the same error is displayed again, the cause is
the hardware fault of the tracking cable or CPU
module. (Please contact your local Mitsubishi
representative, explaining a detailed description
of the problem.)
• Confirm the redundant system startup procedure,
and execute a startup again. For details, refer to
the QnPRHCPU User's Manual (Redundant
System).
1150
[RAM ERROR]
The memory of the CPU module in the Multiple
CPU high speed transmission area is faulty.
■Collateral information
• 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, the CPU
module has hardware failure. Contact your local
Mitsubishi representative, explaining a detailed
description of the problem.
QnU
*10
1160
[RAM ERROR]
The program memory in the CPU module is
overwritten.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At program execution
• 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 CPU
module has hardware failure. Contact your local
Mitsubishi representative, explaining a detailed
description of the problem.
QnU
1161
[RAM ERROR]
The data of the device memory built in the CPU
module is overwritten.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At program execution
• Take noise reduction measures.
If the same error is displayed again, the CPU
module has hardware failure. Contact your local
Mitsubishi representative, explaining a detailed
description of the problem.
1162
[RAM ERROR]
The error of the data held by the battery in the CPU
module is detected. (It occurs when the automatic
format is not set.)
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
• Take noise reduction measures.
• Change the CPU main body or SRAM card
battery.
If the same error is displayed again, the CPU
module has hardware failure. Contact your local
Mitsubishi representative, explaining a detailed
description of the problem.
Error
Code
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU
*10 The Universal model QCPU except the Q00UJCPU, Q00UCPU, Q01UCPU, and Q02UCPU.