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6 INSPECTION AND MAINTENANCE
(n) Flowchart for when "RUN" LED turns off
The following shows the flowchart for when "RUN" LED turns off during
operation.
"RUN" LED turns off.
(a) "Flowchart for when "POWER"
LED turns off"
Does "POWER" LED
turn on ?
NO
YES
YES
(n) "Flowchart for when "ERR." LED
turns on/is flickering"
Is "ERR." LED
on/flickering ?
Reset the Motion controller.
NO
Set the RUN/STOP/RESET switch to
STOP and write END to address 0
with the GX Works2.
Does "RUN" LED turn on ?
NO
YES
Possible cause is a sequence
program error.
Check the program and modify the
program error location.
Does "RUN" LED turn on ?
YES
END
Connect a surge suppression circuit,
such as CR, to the noise source.
Does "RUN" LED turn on ?
YES
(1) Controller part fault/poor
connection between the module
and base unit
(2) Excessive noise generation
For the case of (1)
NO
For the
case of (2)
Set the RUN/STOP/RESET switch to
RUN and enter to the monitor mode
with the GX Works2 to be operated.
NO
Explain the error symptom and get
advice from our sales representative.
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