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Troubleshooting Of Motion Cpu Module - Mitsubishi Electric Q172DCPU User Manual

Motion controller q series.
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6 INSPECTION AND MAINTENANCE

6.6.2 Troubleshooting of Motion CPU module

Error-occurrence description
"POWER" LED turns off
"
." does not flash in the first digit of
7-segment LED
"A00" displays on 7-segment LED
"AL"
"L01" displays on 7-segment LED
"AL"
"A1"
"
LED
"BT " displays on 7-segment LED
" . . ." displays on 7-segment LED
Servo amplifier does not start
"AL"
"S01" displays on 7-segment LED
This section describes the contents of troubles for the error codes and corrective
actions of the troubles.
As for troubleshooting of PLC CPU, refer to the QCPU User's Manual (Hardware
Design, Maintenance and Inspection) of their respective modules.
POINT
Check that the operating system software is installed before starting the Motion
CPU module.
(1) Troubleshooting flowchart
The followings show the contents of the troubles classified into a variety of
groups according to the types of events.
" displays on 7-segment
(a)
"Flowchart for when "POWER" LED turns off"
(b)
"Flowchart for when "
." does not flash in the first digit of
7-segment LED"
(c)
"Flowchart for when "A00" displays on 7-segment LED"
(d)
"Flowchart for when "AL"
(e)
"Flowchart for when "AL"
(f)
"Flowchart for when "BT " displays on 7-segment LED"
(g)
"Flowchart for when " . . ." displays on 7-segment LED"
(h)
"Flowchart for when servo amplifier does not start"
(i)
"Flowchart for when "AL"
6 - 14
"L01" displays on 7-segment LED"
"A1"
"
" displays on 7-segment LED"
"S01" displays on 7-segment LED"

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