Rockwell Automation Publication MOTION-UM002E-EN-P - June 2016 107
Chapter 8
Configure Camming
This chapter describes camming concepts. You use the motion coordinated
instructions to move as many as three axes in a coordinate system. Descriptions
of these instructions are in the Logix5000™ Controllers Motion Instructions
Reference Manual, publication MOTION-RM002
.
Camming Concepts
Camming is the process of coordinating the movement of a master axis and a
slave axis, where the movement of one is dependent on the movement of the
other.
There are two types of camming:
• Mechanical Camming
• Electronic Camming
Mechanical Camming
In mechanical camming, the master axis functions as a cam. A cam is an
eccentric wheel that is mounted on a rotating shaft and used to produce
variable or reciprocating motion in another engaged part, that is, the slave axis.
The slave axis is also known as a follower assembly.
Topic Page
Camming Concepts 107
Cam Profiles 109
Scaling Cams 115
Cam Execution Modes 117
Execution Schedule 117
Pending Cams 122
IMPORTANT Logix5000 motion control applications use electronic camming. A brief
description of mechanical camming provides you an understanding of both
types of camming. However, the remainder of this publication describes how
to use electronic camming in your motion control application.
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