Create An E-Cam Curve By Software - Delta ASDA Series Application Notes

Introduction of E-Cam Operation
Monitoring variable 062 will display the current pulse number being received so users may
acquire the E-Cam's position. For example, if the master axis outputs 3600 pulses (P5-84 =
3600), E-Cam rotates one circle (P5-83 = 1), this means it moves from 0° to 360°. When E-Cam
moves to 180°, and monitoring variable 062 will read 1800 pulses.
How to Create an E-Cam Curve?

2.5.1 Create an E-Cam Curve by Software

Users may use ASDA-Soft to create E-Cam curves. By clicking on E-Cam Editor on the tool bar,
a window of E-Cam editor will pop up. At the starting page, users may select the way to create an
E-Cam table. See Figure 2.21. There are 7 ways available:
Manually create a table, Speed Fitting Creation, Rotary Shear-W/O Sealing Zone, Rotary
Shear-W/T Sealing Zone, Rotary Shear-Adjustable Sealing Zone, Cubic Curve Creation, Rotary
Shear- Printer Machine, and Cubic Curve Creation.

Manually Create a Table
From the perspective of using the machine cam, Figure 2.19 is an example of manually creating
an E-Cam table. It is to use the distances between cam center and its edge and their
corresponding angles to create an E-Cam curve, which is to present the relationship between
angle and position of the slave axis. This method is applicable when each corresponding angle
of the slave axis is known.
Figure 2.22 displays the screen of Manually create a table:
1. The first step is to setup the area number (P5-82). Despite the type of E-Cam, it can be
divided into 720 equal parts (721 points) at maximum. To a cycle of 360°, it means the
minimum degree of each part in one cycle is 0.5°; every 0.5° will correspond to a position
of the axis. More setting points means higher curve resolution and more detail about the
curve can be presented. However, it will occupy more space in data array. Users need to
find a balance between resolution and resource allocation of data array and put
2-16
Figure 2.21 Ways to Create E-Cam Table in ASDA-Soft
ASDA Series Application Note
March, 2015