Mitsubishi Electric Q170MSCPU User Manual page 190

6 INSPECTION AND MAINTENANCE
(d) Flowchart for when "A00" displays on 7-segment LED
"A00" displays when the operating system software is not installed.
The following shows the flowchart for when "A00" displays on 7-segment
LED at the power supply ON or operation start.
"A00" displays on 7-segment LED
operating system
software installed to Motion
controller?
Reset the Motion controller.
Does "A00" disappear
on 7-segment LED?
Is the
NO
YES
NO
YES
END
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Install the operating system software.
Explain the error symptom and get
advice from our sales representative.