Mitsubishi Melsec-Q Series User Manual page 364

Error
Error Contents and Cause
Code
[TRK. CIR. ERROR]
A tracking hardware fault was detected during run-
ning.
• The tracking cable was disconnected and rein-
serted without the standby system being pow-
ered off or reset.
• The tracking cable is not secured by the connec-
1116
tor fixing screws.
• The error occurred at a startup since the redun-
dant system startup procedure was not followed.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• During running
[RAM ERROR]
The memory of the CPU module in the Multiple
CPU high speed transmission area is faulty.
■Collateral information
1150
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
[RAM ERROR]
The program memory in the CPU module is over-
written.
■Collateral information
1160
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At program execution
[RAM ERROR]
The data of the device memory built in the CPU
module is overwritten.
■Collateral information
1161
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At program execution
[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.)
1162 ■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
[RAM ERROR]
The program memory in the CPU module is over-
written.
■Collateral information
1163
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At program execution
*10 The Universal model QCPU except the Q00UJCPU, Q00UCPU, Q01UCPU, and Q02UCPU.
12 - 69
Corrective Action
• Start after checking that the tracking cable is con-
nected.
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 Sys-
tem).
• 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.
• 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.
• 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.
• Take noise reduction measures.
• Change the CPU main body or SRAM card bat-
tery.
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.
• Take noise reduction measures.
• Select "Transfer cache memory to program
memory" in the "Options" dialog box of GX
Works2, or set "Online change T/C setting value
change program memory transfer settings" in the
"Options" dialog box of GX Developer.
• 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.
LED Status Corresponding
CPU Status CPU
QnPRH
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
*10
QnU
QnU
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
QnU