Mitsubishi MELSEC-Q Series User Manual page 158

7
SEQUENCE PROGRAM USED FOR POSITIONING
CONTROL
The timing charts for starting each control are shown below.
(5) Machine OPR control start timing chart
Positioning start signal
(Y8 to YA)
Programmable controller CPU
READY signal (Y0)
Module READY signal (X0)
Start complete signal
(XC to XE)
BUSY signal
(X8 to XA)
Axis/CH error occurrence
signal (X1 to X3)
Cd.5 Start method
OPR request flag
( Md.7 Status: b1 )
OPR complete flag
( Md.7 Status: b2)
7
- 27 7.5 Program Details
7.5.3 Start program
POINT
The BUSY signal (X8 to XA) turns ON even when position control of movement
amount 0 is performed. However, since the ON time is short, the ON status may
not be detected in the sequence program. (The ON status of the start complete
signal (XC to XE) and the positioning complete signal (X10 to X12) can be
detected in the sequence program.)
start timing chart
V
O FF
O N
O FF
O N
O FF
O FF
O FF
O FF
9000
O FF
O FF
Figure 7.4 Machine OPR control start timing chart
Near-point
dog
Zero signal
O N
O N
O N
O N
t
O N