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12-66
12.1.7 Error code list (5000 to 5999)
The following shows the error messages from the error code 5000 to 5999, the contents and
causes of the errors, and the corrective actions for the errors.
Error
Code
(SD0)
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU
5000
[WDT ERROR]
• The scan time of the initial execution type
program exceeded the initial execution
monitoring time specified in the PLC RAS setting
of the PLC parameter.
■Collateral information
• Common Information:Time (value set)
• Individual Information:Time (value actually
measured)
■Diagnostic Timing
• Always
• Read the individual information of the error from
the peripheral device, check its value (time), and
shorten the scan time.
• Change the initial execution monitoring time or
the WDT value in the PLC RAS setting of the
PLC parameter.
• Resolve the endless loop caused by jump
transition.
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
Qn(H)
QnPH
QnPRH
QnU
[WDT ERROR]
• The power supply of the standby system is
turned OFF.
• The tracking cable is disconnected or connected
without turning off or resetting the standby
system.
• The tracking cable is not secured by the
connector fixing screws.
■Collateral information
• Common Information:Time (value set)
• Individual Information:Time (value actually
measured)
■Diagnostic Timing
• Always
• Since power-off of the standby system increases
the control system scan time, reset the WDT
value, taking the increase of the control system
scan time into consideration.
• When the tracking cable is disconnected during
operation, securely connect it and restart the
CPU module. If the same error is displayed
again, the tracking cable or CPU module has a
hardware fault. (Contact your local Mitsubishi
representative, explaining a detailed description
of the problem.)
QnPRH
5001
[WDT ERROR]
• The scan time of the program exceeded the
WDT value specified in the PLC RAS setting of
the PLC parameter.
■Collateral information
• Common Information:Time (value set)
• Individual Information:Time (value actually
measured)
■Diagnostic Timing
• Always
• Read the individual information of the error using
the peripheral device, check its value (time), and
shorten the scan time.
• Change the initial execution monitoring time or
the WDT value in the PLC RAS setting of the
PLC parameter.
• Resolve the endless loop caused by jump
transition.
QCPU
[WDT ERROR]
• The power supply of the standby system is
turned OFF.
• The tracking cable is disconnected or connected
without turning off or resetting the standby
system.
• The tracking cable is not secured by the
connector fixing screws.
■Collateral information
• Common Information:Time (value set)
• Individual Information:Time (value actually
measured)
■Diagnostic Timing
• Always
• Since power-off of the standby system increases
the control system scan time, reset the WDT
value, taking the increase of the control system
scan time into consideration.
• When the tracking cable is disconnected during
operation, securely connect it and restart the
CPU module. If the same error is displayed
again, the tracking cable or CPU module has a
hardware fault. (Contact your local Mitsubishi
representative, explaining a detailed description
of the problem.)
QnPRH