User`s manual

Follower Motion
GFK-1742A Chapter 8 Follower Motion 8-15
8
The diagram below illustrates the four DSM314 analog axes connected in two parallel pairs. The
reader should note that with this configuration the Local Logic function
can not
be run. This is
because the servo position loop for axis #4 is required for this configuration.
Position
Loop
Servo
Am plifier
M
1
Encoder
Servo
Motor
Axis#1
Feed Forward
Commanded
Position
Axis #1
Axis #1 (Follower Control Loop = Disabled)
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 (Follower Control Loop = Enabled)
Position
Loop
Servo
Am plifier
M
3
Encoder
Servo
Motor
Axis#3
Feed Forward
Commanded
Position
Axis #3
Axis #3 (Follower Control Loop = Disabled)
Ratio
A/B
Position
Loop
Servo
Am plifier
M
4
Motion
Program
Jog/
Move at
Velocity
Encoder
Slave
Motor
Axis#4
Feed Forward
Enable
Follower
Axis #4
Slave Axis #4 (Follower Control Loop = Enabled)
Path Generator Axis #1
Path Generator Axis #3
Master
Source
Axis #2
Master
Source
Axis #4
Figure 8-14. 4-Axis Analog Follower / Parallel Structure / Src = Cmd Pos 1 & Cmd Pos 3