Galil Motion Control CDS-3310 User Manual page 63

Step 7. Disengage the slave motion
To disengage the cam, use the command
where x is the master position at which the x-axis must be disengaged.
3000
2250
1500
0
Figure 6.4 - Electronic Cam Example
This disengages the slave axis at a specified master position. If the parameter is outside the master
cycle, the stopping is instantaneous.
To illustrate the complete process, consider the cam relationship described by
the equation:
where N is the master, with a cycle of 2000 counts.
The cam table can be constructed manually, point by point, or automatically by a program. The
following program includes the set-up.
The instruction EAN defines N as the master axis. The cycle of the master is 2000. Over that cycle, X
varies by 1000. This leads to the instruction EM 2000,1000.
2 • Chapter 6 Programming Motion
EQ x
2000 4000
X = 0.5 * N + 100 sin (0.18 * N)
6000 Master X
CDS-3310