User Manual Chapter 15
GFK-1742F Jan 2020
Using the Electronic CAM Feature 328
Note:
1. For any Cyclic CAM, the master High/Low Position limits in Hardware Configuration must be set
up according to the master rollover points in the CAM profile. The master axis Low Limit must
equal the first master position in the profile. The master High Position Limit must be equal to the
(Last Master Position – 1) in user units. This is because a cyclic profile's first and last point are the
same on the physical device.
2. For any Cyclic CAM, the master High/Low Position limits in Hardware Configuration must be set
up according to the master rollover points in the CAM profile. The master axis Low Limit must
equal the first master position in the profile. The master High Position Limit must be equal to the
(Last Master Position – 1) in user units. This is because a cyclic profile's first and last point are the
same on the physical device.
Figure 150: Linear Cyclic CAM
Circular Cyclic CAM
A Circular Cyclic CAM has a profile that keeps repeating until an event causes it to exit.
Furthermore, a Circular Cyclic CAM has different numerical start and end slave axis positions
(see Figure 151). Both the master axis and the slave axis roll over at the profile end points. A
rotary knife is an example of a Circular Cyclic CAM.
Constraint: The entire slave profile (including interpolated values) must lie between the
minimum and maximum slave position limits, where the minimum and maximum slave
limits are defined as follows: