308
Appendix 1.3 List of error codes (1000 to 1999)
The following table shows the error messages, the error contents and causes, and the corrective actions for the error
codes (1000 to 1999).
Error
code
Error and cause Corrective action
LED status,
CPU status
Corresponding
CPU
1000
[MAIN CPU DOWN]
Runaway or failure of the CPU module
• Malfunction due to noise or other causes
• Hardware failure
■Collateral information
• Common information: -
• Individual information: Failure information
(QnUDVCPU only)
■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 hardware failure of the CPU
module. Please consult your local
Mitsubishi representative.
RUN: Off
ERR.:Flashing
CPU Status:Stop
QCPU
[CPU UNIT DOWN]
Runaway or failure of the CPU module
• Malfunction due to noise or other causes
• Hardware failure
■Collateral information
• Common information: -
• Individual information: Failure information
■Diagnostic timing
• Always
LCPU
1001
[MAIN CPU DOWN]
Runaway or failure of the CPU module
• Malfunction due to noise or other causes
• Hardware failure
• The devices outside the range was accessed
even though device checks are prohibited
(SM237 is on). (This error occurs only when any
of the BMOV, FMOV, or DFMOV instructions is
executed. (Universal model QCPU only))
■Collateral information
• Common information: -
• Individual information: Failure information
(QnUDVCPU only)
■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 hardware failure of the CPU
module. Please consult your local
Mitsubishi representative.
• Check the devices specified by BMOV,
FMOV, and DFMOV instructions and
correct the device settings. (Universal
model QCPU only)
RUN: Off
ERR.:Flashing
CPU Status:Stop
QCPU
[CPU UNIT DOWN]
Runaway or failure of the CPU module
• Malfunction due to noise or other causes
• Hardware failure
• The devices outside the range was accessed
even though device checks are prohibited
(SM237 is on). (This error occurs only when any
of the BMOV, FMOV, or DFMOV instruction is
executed.)
■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 hardware failure of the CPU
module. Please consult your local
Mitsubishi representative.
• Check the devices specified by BMOV,
FMOV, and DFMOV instructions and
correct the device settings.
LCPU
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