Mitsubishi Q170MCPU User Manual page 162

6 INSPECTION AND MAINTENANCE
(k) Flowchart for when "MODE" LED is flickering
The following shows the flowchart for when "MODE" LED flickers at Motion
controller's power-on, at operation start or during operation.
"MODE" LED is flickering.
Have the forced
ON/OFF settings made?
NO
Is the
RUN/STOP/RESET
switch in the STOP
position ?
YES
A hardware fault
Check operation in the order starting
with the minimum system.
If the module will not work, explain
the error symptom and get advice
from our sales representative for the
modules with failure.
YES
Cancel forced ON/OFF.
NO
Does "MODE" LED turn on?
NO
Set the RUN/STOP/RESET switch to
the STOP position.
NO
Does "MODE" LED turn on?
6 - 27
YES
YES
END