9 Electronic Cam
9.4.2.3 Creating Rotary
Cut Data
There are two steps of creating a rotary cut curve.
1. Creating a cam chart: Users have to create a blank cam chart in PMSoft, and then set resolution in
accordance with the number of rotary cut curves. In order to create a rotary cut curve, the users
need to type 300 in the Resolution box. Download the cam chart to a DVP-20PM series motion
controller. When the DVP-20PM series motion controller operates, electronic cam data is stored in
the cam chart.
2. Setting CR#10000: Users have to set the parameters related to a rotary cutter, including the
distance for which the master axis specified moves, the distance for which the slave axis specified
is synchronized with the master axis specified, and the synchronization ratio of the speed of the
slave axis specified to the speed of the master axis specified. After CR#10000 in the special module
K100 operates, a rotary cut curve will be created.
Example 1
【Function】
The steps of creating a rotary cut curve by means of CR#10000are described below.
Distance for which the master axis specified moves=1000
Distance for which the slave axis specified moves=500
Distance for which the slave axis specified is synchronized with the master axis specified=300
Synchronization ratio of the speed of the slave axis specified to the speed of the master axis
specified=1.0
In addition, set b[14] of high word of P6=1 for electronic cam curve setting, indicating only single
data real-time modification is applicable. This is to prevent rotary cut curves from being modified
during program execution. The rotary cut curve created and the values of parameters are shown
below.
Displacement
500
0
-500
0
100
200 300 400 500
600
700
800
900
1,000
Distance for which the slave
axis specified moves: 500
Angle
Velocity
1
0
-1
0
100
200 300
400
500
600
700
800
900
1,000
Distance for which the axis spec ified is
synchronized with the master axis specified:300
Distance for which the master
axis specified moves:1,000
Synchronization ratio of the speed of the slave axis
specified to the speed of the master axis specified: 1.0
Angle
DVP-20PM Application Manual
9-36