Application Examples ASDA Series Application Note
3-4 March, 2015
3.1 How to Use Capture Function to Create E-Cam Curves?
3.1.1 Description
This application example will demonstrate how Capture function on ASDA-A2 is used to create
an E-Cam curve. This chapter will focus on the procedure of creating an E-Cam curve and
explain how the system work and its settings. Before getting started, basic knowledge about PR
mode and E-Cam is required. To know more about these topics, please refer to chapter 1 and 2
of this application note.
3.1.2 About the System and System Configuration
This chapter will teach users to create E-Cam curves directly in the system. Capture function
enables ASDA-A2 to record the current position of the system. With this feature, an E-Cam curve
can be created based on the shape of the object and the required points for the curve can also
be recorded.
3.1.2.1 Creating an E-Cam Curve
When creating E-Cam curves, the motions of the master axis and the slave axis have to be
decomposed. The motion of master axis is making a circular motion which is 360° per circle. If it
is divided into 50 equal parts, whenever the master axis travels one equal part, one point has to
be created on the E-Cam curve for the slave axis. In this way, 50 points that corresponds to 50
equal parts on salve axis are recorded and thus making an E-Cam curve.
The example below will illustrate the idea. The cam is divided into 14 equal parts. How the first 5
points are created will be demonstrated with the motion analysis. Figure 3.1.1 shows the motion
step by step and Figure 3.1.2 presents the relation between the motion and E-Cam curve.
Step 0 Step 1
Step 2 Step 3
Step 4 Step 5
Figure 3.1.1 Motion Analysis of Master Axis and Slave Axis
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