Mitsubishi Electric Q26UD(E)HCPU User Manual page 311

Error
Error and cause
code
[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
1002
[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
[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
1003
[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
[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: -
■Diagnostic timing
• Always
1004
[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
Corrective action
• 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.
• 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
QCPU
RUN: Off
ERR.:Flashing
CPU Status:Stop
LCPU
QCPU
RUN: Off
ERR.:Flashing
CPU Status:Stop
LCPU
QCPU (except
QnUDV)
RUN: Off
ERR.:Flashing
CPU Status:Stop
LCPU
A
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