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12.1 Error Code List
12.1.3 Error code list (1000 to 1999)
1106
[RAM ERROR]
The battery is dead.
The program memory in the CPU module is faulty.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• STOP RUN/When an END instruction
executed
• Check the battery to see if it is dead or not. If
dead, replace the battery.
• 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 possible
cause is a CPU module hardware fault. (Contact
your local Mitsubishi representative, explaining a
detailed description of the problem.)
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
Qn(H)
QnPH
*7
QnPRH
1107 [RAM ERROR]
The work area RAM in the CPU module is faulty.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
This suggests a CPU module hardware fault.
(Contact your local Mitsubishi representative.)
QnPRH
1108
1109
[RAM ERROR]
The work area RAM in the CPU module is faulty.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
•Always
Qn(H)
*8
QnPH
*8
QnPRH
*9
1110
[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
QnPRH
1111
[TRK. CIR. ERROR]
A tracking hardware fault was detected.
■Collateral information
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• At power ON/ At reset
1112 [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).
1113
Error
Code
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU
*7 The module whose first 5 digits of serial No. is "07032" or later.
*8 The module whose first 5 digits of serial No. is "08032" or later.
*9 The module whose first 5 digits of serial No. is "09012" or later.