Mitsubishi Electric Q26UD(E)HCPU User Manual page 313

Error
Error and cause
code
[MAIN CPU DOWN]
• The voltage waveform that is outside the
specification is applied to the power supply
module, and an error is detected.
• A failure was detected on the power supply
module, CPU module, main base unit, extension
base unit or extension cable.
• When using the redundant base unit, the
redundant power supply module failure in both
systems and/or the redundant base unit failure
are detected.
■Collateral information
• Common information: -
• Individual information: Failure information
1009
(QnUDVCPU only)
■Diagnostic timing
• Always
[CPU UNIT DOWN]
• A failure was detected on the power supply
module or CPU module.
• The voltage waveform that is outside the
specification is applied to the power supply
module, and an error is detected.
■Collateral information
• Common information: -
• Individual information: Failure information
■Diagnostic timing
• Always
[END NOT EXECUTE]
Entire program was executed without the
execution of an END instruction.
• When the END instruction is executed it is read
as another instruction code, e.g. due to noise.
• The END instruction has been changed to
1010
another instruction code somehow.
■Collateral information
• Common information: -
• Individual information: -
■Diagnostic timing
• When an END instruction executed
[SFCP. END ERROR]
The SFC program cannot be normally terminated
due to noise or other reason.
• The SFC program cannot be normally
terminated due to noise or any similar cause.
• The SFC program cannot be normally
1020
terminated for any other reason.
■Collateral information
• Common information: -
• Individual information: -
■Diagnostic timing
• When SFC program is executed
Corrective action
• Correct the voltage waveform applied to
the power supply module.
• Reset the CPU module and run it again. If
the same error code is detected again, the
cause is a failure of the power supply
module, CPU module, main base unit,
extension base unit, or extension cable.
Please consult your local Mitsubishi
representative.
• Correct the voltage waveform applied to
the power supply module.
• Reset the CPU module and run it again. If
the same error code is displayed again, the
cause is a hardware failure of the power
supply module or CPU module. Please
consult your local Mitsubishi
representative.
• 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.
• 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.
APPENDICES
LED status, Corresponding
CPU status CPU
Q00J/Q00/Q01
Qn(H)
QnPH
QnPRH
QnU
RUN: Off
ERR.:Flashing
CPU Status:Stop
LCPU
RUN: Off
ERR.:Flashing QCPU
LCPU
CPU Status:Stop
RUN: Off Q00J/Q00/Q01
ERR.:Flashing QnPH
QnU
LCPU
CPU Status:Stop
A
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