Mitsubishi Electric QJ71LP21 Reference Manual page 294

8 TROUBLESHOOTING
Error Code
Error Messages
*1
(SD0)
TRK.INIT.ERROR
6140
*3
CONTROL EXE.
*4
6200
CONTROL EXE.
CONTROL WAIT
*7
6210
STANDBY
CAN'T EXE
*4
CHANGE
6220
CAN'T SWITCH
CAN'T EXE
6221
*4
CHANGE
6230 DUAL SYS ERROR
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being stored.
*3 : This can only be detected in redundant systems. Detection is possible in either the control system or the standby system.
*4 : This can only be detected in the redundant system control system.
*7 : This can only be detected in the redundant system standby system.
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Table8.2 Error code
Common Information Individual Information
(SD5 to 15) (SD16 to 26)
----
Reason(s) for system
switching
Reason(s) for system
switching
Reason(s) for system
switching
Reason(s) for system
switching
Reason(s) for system
switching
Reason(s) for system Reason(s) for system
switching switching failure
Reason(s) for system
switching
----
LED Status
RUN ERROR
---- Off Flicker
---- On Off
---- On Off
---- On Off
---- On Off
---- On On
On On
---- On On
---- On On
MELSEC-Q
Operating
Statuses of Diagnostic Timing
CPU
At power ON/At
Stop
reset
Continue Always
No error Always
Continue Always
No error Always
Continue At switching request
At switching
Continue
execution
Continue At switching request
Continue Always
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