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5 DATA USED FOR POSITIONING CONTROL
Example of setting for " Pr. 50 Setting for the movement amount after near-point dog ON"
Assuming that the " Pr. 8 Speed limit value" is set to 200 kPLS/s, " Pr. 46 OPR speed" to 10 kPLS/s,
" Pr. 47 Creep speed" to 1 kPLS/s, and deceleration time to 300 ms, the minimum value of " Pr. 50 Setting for the Movement
amount after near-point dog ON" is calculated as follows:
[OPR operation]
Speed limit value: Vp=200 kPLS/s
Pr.8
Pr.46
OPR speed:
Vz=10 kPLS/s
Actual deceleration time:t = Tb
[Table 1]
Pr.1
setting value
0 : mm
1 : inch
2 : degree
3 : PLS
Creep speed: Vc=1 kPLS/s
Pr.47
Vz
t
Vp
Deceleration time: Tb=300 ms
Pr.51 OPR acceleration time selection
Set which of "acceleration time 0 to 3" to use for the acceleration time during OPR.
0 : Use the value set in "
1 : Use the value set in "
2 : Use the value set in "
3 : Use the value set in "
Pr.52 OPR deceleration time selection
Set which of "deceleration time 0 to 3" to use for the deceleration time during OPR.
0 : Use the value set in "
1 : Use the value set in "
2 : Use the value set in "
3 : Use the value set in "
Value set with peripheral device
(unit)
0 to 214748364.7 ( µ m)
0 to 21474.83647 (inch)
0 to 21474.83647 (degree)
0 to 2147483647 (PLS)
[Deceleration distance] =
Setting for the movement amount after nearpoint
dog ON ( Pr. 50 ) should be equal to or larger
than 175.
Pr.9
Acceleration time 0".
Pr.25
Acceleration time 1".
Pr.26
Acceleration time 2".
Pr.27
Acceleration time 3".
Pr.10
Deceleration time 0".
Pr.28
Deceleration time 1".
Pr.29
Deceleration time 2".
Pr.30
Deceleration time 3".
5 - 57
MELSEC-Q
Value set with PLC program
(unit)
0 to 2147483647 ( × 10
0 to 2147483647 ( × 10
0 to 2147483647 ( × 10
0 to 2147483647 (PLS)
1
Vz
t + 0.01
Vz
2
1000
Movement amount for
10ms at OPR speed.
Vz
Tb Vz
+ 0.01
Vz
=
2000
Vp
3
3
10 10
300 10 10
+ 0.01
=
2000
200 10
3
= 75 + 100
= 175
-1
µ m)
-5
inch)
-5
degree)
3
10
10
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