6 PLC PROGRAM USED FOR POSITIONING CONTROL
Positioning start signal
All axis servo ON
PLC READY signal
QD75 READY signal
Start complete signal
BUSY signal
Error detection signal
Cd. 3 Positioning start No.
Positioning start signal
All axis servo ON
PLC READY signal
QD75 READY signal
Start complete signal
BUSY signal
Positioning complete signal
Error detection signal
(2) Time chart for starting "fast OPR"
V
OFF
[Y10]
OFF
[Y1]
OFF
[Y0]
OFF
[X0]
OFF
[X10]
OFF
[XC]
OFF
[X8]
Fig. 6.5 Time chart for starting "fast OPR"
(3) Time chart for starting "major positioning control"
V
[Y10]
[Y1]
[Y0]
[X0]
[X10]
[XC]
[X14]
[X8]
Cd. 3 Positioning start No.
Fig. 6.6 Time chart for starting "major positioning control"
ON
ON
ON
ON
ON
ON
9002
Operation pattern
Positioning data No.
6 - 59
MELSEC-Q
1(11)
Dwell time
2(00)
1
t
t