Mitsubishi MELSEC Q Series Programming Manual page 927

Error
Error Contents and Cause
Code
[MAIN CPU DOWN]
• The power supply module detected an incorrect
power waveform.
• When using the redundant base unit, the
redundant power supply module failure in both
systems and/or the redundant base unit failure
are detected.
• The voltage waveform that is outside the
specification was applied to the power supply
module.
■Collateral information
• Common Information:-
• Individual Information:-
1009
■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 was applied to the power supply
module.
■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, explaining a detailed
description of the problem.)
• 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, explaining a
detailed description of the problem.)
• 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,
explaining a detailed description of the
problem.)
LED Status Corresponding
CPU Status CPU
Q00J/Q00/Q01
*10
Qn(H)
QnPH
QnPRH
QnU
LCPU
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
QCPU
LCPU
Q00J/Q00/Q01
QnPH
QnU
LCPU
12-7
1
2
*8
3
12
6
6
7
8
*8