Mitsubishi Electric QJ71LP21 Reference Manual page 300

8 TROUBLESHOOTING
Error Code
Error Messages
*1
(SD0)
*9
9000
F****
<CHK>ERR ***-***
9010
*10
9020 BOOT OK
CONT. UNIT
10000
ERROR
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being stored.
*9 : **** indicates the detected annunciator No.
*10 : ***_*** indicates the detected contact and coil No.
*11 : For the Basic model QCPU, it can be turned off by the LED indication priority setting special register (SD207 to SD209). (Only turned off for the High
Performance model QCPU, Process CPU or Redundant CPU.)
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Table8.2 Error code
Common Information Individual Information
(SD5 to 15) (SD16 to 26)
Program error location Annunciator number
Program error location Failure No.
----
----
LED Status
RUN ERROR
On/
On
*11
Off
USER LED On
On Off
USER LED On
---- Off Flicker
---- Off Flicker
MELSEC-Q
Operating
Statuses of Diagnostic Timing
CPU
When instruction
Continue
executed.
When instruction
Continue
executed.
At power ON/At
Stop
reset
Continue Always
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