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MELSEC-Q
8 TROUBLESHOOTING
*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.
*7 : This can only be detected in the redundant system standby system.
Error
Code
(SD0)
*1
Error
Messages
Common
Information
(SD5 to 15)
Individual
Information
(SD16 to 26)
LED Status Operating
Statuses
of CPU
Diagnostic
Timing
RUN ERROR
6001 FILE DIFF. ---- ---- Off Flicker Stop
At power ON/
At reset/At
tracking cable
connection/At
operation
mode change
6010
MODE.
VERIFY
ERR.
*7
---- ---- On On Continue Always
OPE. MODE
DIFF.
*7
---- ---- On On Continue Always
6020
OPE. MODE
DIFF.
*3
---- ---- Off Flicker Stop
At power ON/
At reset
6030
UNIT LAY.
DIFF.
*7
Unit No. ---- Off Flicker Stop
At power ON/
At reset/At
tracking cable
connection/At
operation
mode change
6035
UNIT LAY.
DIFF.
*7
---- ---- Off Flicker Stop
6036
UNIT LAY.
DIFF.
*3
Unit No. ---- Off Flicker Stop Always
6040
CARD TYPE
DIFF.
---- ---- Off Flicker Stop
At power ON/
At reset
6041 ---- ---- Off Flicker Stop
At power ON/
At reset
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