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6 PLC PROGRAM USED FOR POSITIONING CONTROL
Positioning start signal
All axis servo ON
Axis stop signal
PLC READY signal
QD75 READY signal
Start complete signal
BUSY signal
Positioning complete signal
Error detection signal
(5) Time chart for restarting
V
[Y10]
[Y1]
[Y4]
[Y0]
[X0]
[X10]
[XC]
[X14]
[X8]
Md. 26 Axis operation status
Cd. 6 Restart command
Fig. 6.14 Time chart for restarting
0
8
0
6 - 68
MELSEC-Q
Dwell time
1
8
1
0
t
0
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