Mitsubishi A1SD75P1-S3, User Manual

Page: 150 / 622

5 - 53
MELSEC-A
5 DATA USED FOR POSITIONING CONTROL
[Table 1]
Pr.11
setting value
Pr.1
setting value
Value set with peripheral device
(unit)
Value set with sequence program
(unit)
0 : mm
0 to 214748364.7 (
µ
m)
0 to 2147483647 (
×
10
-1
µ
m)
1 : inch 0 to 21474.83647 (inch)
0 to 2147483647 (
×
10
-5
inch)
2 : degree 0 to 21474.83647 (degree)
0 to 2147483647 (
×
10
-5
degree)
0 : Standard mode
3 : pulse 0 to 2147483647 (pulse) 0 to 2147483647 (pulse)
0 : mm
0 to 13421772.7 (
µ
m)
0 to 134217727 (
×
10
-1
µ
m)
1 : inch 0 to 1342.17727 (inch) 0 to 134217727 (
×
10
-5
inch)
2 : degree 0 to 1342.17727 (degree) 0 to 134217727 (
×
10
-5
degree)
1 : Stepping motor
mode
3 : pulse 0 to 134217727 (pulse) 0 to 134217727 (pulse)
: Tb=300ms
: Vc=1kpulse/s
t
: t = Tb
×
Vz
Vp
: Vp=200kpulse/s
: Vz=10kpulse/s
1
2
×
=
Vz
1000
×
t
Tb
×
Vz
Vp
=
Vz
2000
×
300
×
10
×
10
3
200
×
10
3
×
10
×
10
3
2000
=
= 75 + 100
Example for setting " Pr.52 Setting for the movement amount after near-point dog ON"
When " Pr.7 Speed limit value" is set to 200kpulse/s, " Pr.48 Zero point return speed" is set to 10kpulse/s, " Pr.49 Creep
speed" is set to 1kpulse/s and the deceleration time is set to 300ms, " Pr.52 Setting for the movement amount after near-point
dog ON" is calculated as shown below.
[Machine zero point return operation]
Speed limit value
Pr.7
Zero point return speed Pr.48
[Deceleration
distance]
Creep speed Pr.49
Actual decel-
eration time
Deceleration time
Set 175 or more for " Setting for the movement
amount after near-point dog ON"
Pr.52
Movement amount for 10ms
at zero point return speed
+ 0.01
×
Vz
+
0.01
×
Vz
= 175
+ 0.01
×
10
×
10
3
Pr.53 Zero point return acceleration time selection
Set which of "acceleration time 0 to 3" to use for the acceleration time during zero
point return.
0 : Use the value set in " Pr.8 Acceleration time 0".
1 : Use the value set in " Pr.26 Acceleration time 1".
2 : Use the value set in " Pr.27 Acceleration time 2".
3 : Use the value set in " Pr.28 Acceleration time 3".
Pr.54 Zero point return deceleration time selection
Set which of deceleration time 0 to 3" to use for the deceleration time during zero
point return.
0 : Use the value set in " Pr.9 Deceleration time 0".
1 : Use the value set in " Pr.29 Deceleration time 1".
2 : Use the value set in " Pr.30 Deceleration time 2".
3 : Use the value set in " Pr.31 Deceleration time 3".
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