Mitsubishi Q2ACPU User Manual

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9. MAINTENANCE FUNCTION
*1 Can be changed to operation continues by GPP function parameter setting.
*4 The detected annunciator number is displayed at ****.
*5 The detected contact and coil numbers are displayed at ***.
Self-diagnostics list(Continued)
Diagnosis Item Diagnosis Timing
CPU Module
Status
LED Status
LED Indicator Message
(Q3A/Q4ACPU Only)
RUN ERROR
Program error
Instruction code check
• When power is ON or RESET
• When switching from STOP to RUN
Stop OFF Flickers INSTRCT CODE ERR.
No END instruction
• When power is ON or RESET
• When switching from STOP to RUN
Stop OFF Flickers MISSING END INS.
Pointer setting error
• When power is ON or RESET
• When switching from STOP to RUN
Stop OFF Flickers CAN'T SET(P)
Pointer setting error
• When power is ON or RESET
• When switching from STOP to RUN
Stop OFF Flickers CAN'T SET(I)
Operation error
(Default stop)
*1
When executing each instruction
Stop/
Continue
OFF/ON
Flickering/
ON
OPERATION ERROR
FOR-NEXT instruction
configuration error
When executing each instruction Stop OFF Flickers FOR-NEXT ERROR
CALL-RET instruction
configuration error
When executing each instruction Stop OFF Flickers CAN'T EXECUTE(P)
Interrupt program error When executing each instruction Stop OFF Flickers CAN'T EXECUTE(I)
Unable to execute instruction When executing each instruction Stop OFF Flickers INST.FORMAT ERR.
Extended instruction error
(Default stop)
*1
When executing each instruction
Stop/
Continue
OFF/ON
Flickering/
ON
EXTEND INST.ERR.
SFC program configuration
error
When switching from STOP to RUN Stop OFF Flickers SFCP.CODE ERROR
SFC block configuration error When switching from STOP to RUN Stop OFF Flickers CAN'T SET(BL)
SFC step configuration error When switching from STOP to RUN Stop OFF Flickers CAN'T SET(S)
SFC syntax error When switching from STOP to RUN Stop OFF Flickers SFCP.FORMAT ERR.
SFC operation check error
(Default stop)
*1
When executing each instruction
Stop/
Continue
OFF/ON
Flickering/
ON
SFCP.OPE.ERROR
SFC program execution error When switching from STOP to RUN Continue ON ON SFCP.EXE.ERROR
SFC block execution error When executing each instruction Stop OFF Flickers BLOCK EXE.ERROR
SFC step execution error When executing each instruction Stop OFF Flickers STEP EXE.ERROR
CPU error
Watchdog error supervision Always Stop OFF Flickers WDT ERROR
Program timeout Always Continue ON ON PRG.TIME OVER
Annunciator check When executing each instruction Continue ON OFF
F****
*4
CHK instruction check When executing each instruction Continue ON OFF
<CHK>ERR
***-***
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Mitsubishi Q2ACPU Specifications

General

Brand	Mitsubishi
Model	Q2ACPU
Category	Controller
Language	English