User`s manual

Follower Motion
GFK-1742A Chapter 8 Follower Motion 8-11
8
Follower Mode Command Source and Connection Options
The diagrams on the following pages illustrate a variety of Master axis and Follower slave axis
loop connection options.
The diagram below illustrates the three DSM314 analog axes connected in parallel with Actual
Position for Axis #4. The reader should note that with this configuration, the Local Logic
function
can
be run. This is because the command generator for axis #4 is not required for this
configuration. The Master Source Configuration items are all set to Actual Position Axis #4.
This is not a requirement. However, it does eliminate a source of error due to the master source
select bit being set incorrectly.
Ratio
A/B
Position
Loop
Servo
Am plifier
M
1
Motion
Program
Jog/
Move at
Velocity
Encoder
Slave
Motor
Axis#1
Feed Forward
4
Actual Position
Axis #4
Enable
Follower
Axis #1
Slave Axis #1
Ratio
A/B
Position
Loop
Servo
Am plifier
M
2
Motion
Program
Jog/
Move at
Velocity
Encoder
Slave
Motor
Axis#2
Feed Forward
Enable
Follower
Axis #2
Slave Axis #2
Ratio
A/B
Position
Loop
Servo
Am plifier
M
3
Motion
Program
Jog/
Move at
Velocity
Encoder
Slave
Motor
Axis#3
Feed Forward
Enable
Follower
Axis #3
Slave Axis #3
Master
Source
Select
Axis #2
Master
Source
Select
Axis #3
Master
Source
Select
Axis #1
Figure 8-10. 3-Axis Analog Follower / Parallel Structure / Follower Source = Actual Position 4