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MELSEC-Q
6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL
Position control operation timing and process time
t1
t2
t3
t4
t5
t2
t6
M code OFF request
Standby Position control Standby
BUSY signal [XC, XD, XE, XF]
Output pulse to external source
(PULSE)
Positioning operation
Axis operation status
M code OFF request
Positioning start signal
[Y10, Y11, Y12, Y13]
M code ON signal
(WITH mode) [X4, X5, X6, X7]
Start complete signal
[X10, X11, X12, X13]
M code ON signal
(AFTER mode)
[X4, X5, X6, X7]
[X14, X15, X16, X17]
Positioning complete signal
OPR complete flag
[ Status: b4]
Cd. 7
Md. 26
Cd. 7
Md. 31
Fig. 6.10 Position control operation timing and process time
• When the positioning start signal turns ON, if all signals marked with an
asterisk (
) are already ON, the signals marked with an asterisk ( ) will turn
OFF when the positioning start signal turns ON.
Normal timing time
Model t1 t2 t3 t4 t5 t6
QD75P N/QD75D N 0.2 to 1.1ms 0 to 0.9ms 0 to 0.9ms 0.4 to 1.3ms 0 to 0.9ms
QD75P /QD75D 1.2 to 2.3ms 0 to 1.8ms 0 to 1.8ms 2.7 to 4.4ms 0 to 1.8ms
Follows
parameters
•
The t1 timing time could be delayed depending on the operating conditions of
the other axis.
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