Mitsubishi QJ71LP21 Reference Manual page 365

8 TROUBLESHOOTING
Error
Code Error Contents and Cause
*1
(SD0)
9000 Annunciator (F) was set ON
9010 Error detected by the CHK instruction.
Storage of data onto ROM was
completed normally in automatic write
9020
to standard ROM.
(BOOT LED also flickers.)
In the multiple CPU system, an error
occurred in the CPU module other
10000
than the Process CPU/High
Performance model QCPU.
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*12 : This applies to the CPU module of function version B or later.
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Corrective Action
Read the individual information of the
error using the peripheral device, and
check the program corresponding to
the numerical value (annunciator
number).
Read the individual information of the
error using the peripheral device, and
check the program corresponding to
the numerical value (error number)
there.
Use the DIP switches to set the valid
parameter drive to the standard ROM.
Then, switch power on again, and
perform boot operation from the
standard ROM.
Check the details of the generated
error by connecting to the
corresponding CPU module using GX
Developer.
MELSEC-Q
Corresponding
CPU
QnA
Qn(H)
QnPH
QnPRH
*12
Qn(H)
QnPH
QnPRH
*12
Qn(H)
QnPH
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