Mitsubishi Q2ACPU

22 - 39
22. TROUBLE SHOOTING
4601
[SFCP. OPE. ERROR]
Exceeds device range that can be designated by
the SFC program.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
Read common information of the error using the
peripheral device, check error step corresponding
to its numerical value (program error location), and
correct the problem.
RUN:
Off/On
ERR.:
Flicker/On
CPU Status:
Stop/
Continue
*1
QnA
4602
[SFCP. OPE. ERROR]
The START instruction in an SFC program is
preceded by an END instruction.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
4610
[SFCP. EXE. ERROR]
The active step information at presumptive start of
the SFC program is incorrect.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• STOP RUN
Read common information of the error using the
peripheral device, check error step corresponding
to its numerical value (program error location), and
correct the problem.
The program is automatically subjected to an initial
start.
RUN:
On
ERR.:
On
CPU Status:
Continue
4611
[SFCP. EXE. ERROR]
Key-switch was reset during RUN when
presumptive start was designated for SFC
program.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• STOP RUN
4620
[BLOCK EXE. ERROR]
Startup was executed at a block in the SFC
program that was already started up.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
Read common information of the error using the
peripheral device, check error step corresponding
to its numerical value (program error location), and
correct the problem.
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
4621
[BLOCK EXE. ERROR]
Startup was attempted at a block that does not exist
in the SFC program.
■Collateral informationmmon
• Common Information:Program error location
• Individual Information:–
■Diagnostic Timing
• When instruction executed
• Read the common information of the error using
GX Developer, and check and correct the error
step corresponding to that value (program error
location).
• Turn ON if the special relay SM321 is OFF.
Error
Code
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU
*1 CPU operation can be set in the parameters at error occurrence. (LED indication varies.)