User`s manual

16-30 Motion Mate™ DSM314 for Series 90™-30 PLCs User's Manual – January 2001 GFK-1742A
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Figure 16-20. Linking a Profile to a CAM Block
Step 5: Configure CAM Profile Data Points
Once these operations are complete, you must configure the CAM profile. The CAM profile is a
relationship between the master position and the slave position. For this example, we are going to
configure a simple CAM profile. A CAM profile is composed of a series of Points. Each point is
defined by two coordinates. When viewing the graphical representation, the Master coordinate
represents the horizontal axis and the Slave coordinate represents the vertical axis, as shown in the
next figure.
Begin by double-clicking the profile to open it in the Profile Editor window (see next figure),
which has two editors:
•
TheTable Editor
is similar to a spreadsheet. In the table, each point has its own row with
two columns, one for the Master position and one for the corresponding Slave position.
When a new profile is opened, there are, by default, only two points, a start point and an
end point. The start point is the top point of the table and the end point is at the bottom.
•
To edit points with the Graphical Editor
, click the point on the graph and drag it to the
desire location. (NOTE: The point data in the table editor will update to the new
position.) To perform other tasks in the graphical editor, right-click in the graph and
select the applicable task from the short-cut menu.
The next step is to edit the end point (the bottom point in the table) for the Master and Slave. In the
Table Editor, click in the end point’s Master column and enter the value 50000; then click in the
end point’s Slave column and enter the value 0. (NOTE: As points are added or changed in the
Table Editor, the graph in the Graphical Editor will update accordingly.)
Next, insert an additional point into the Editor table. Right-click in the Master column of the end
point and choose Insert Point from the short-cut menu (shown it the next figure). A new row is
added above the end point row, specifying a new point with master and slave values, by default,
midway (25000 and 0, respectively) between the values of the two existing adjacent (above and
below) points. Change the values for this point to 47500 for the Master and 11000 for the Slave.
To change a point value, click it, type in the new number, then either press the Enter key, or click
outside of the table.
To change the Curve-Fit order, click the Curve-Fit column, then select the Curve-Fit Order in the
Property Inspector window. Also, a profile can be split into multiple sections or multiple sections
merged into one by right-clicking on the Curve-Fit display and choosing from the short-cut menu.
Note
A CAM profile is limited to 400 points if it contains second or third order
sectors. A CAM profile is limited to 5000 points if it only contains first order
sectors.