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8-12 Motion Mate DSM314 for Series 90-30 PLCs User's Manual
January 2001 GFK-1742A
8
The diagram below illustrates the three DSM314 analog axes connected in parallel with
Commanded Position for Axis #4. The reader should note that with this configuration, the Local
Logic function
can not
be run. This is because the command generator for axis #4 is required for
this configuration. The Master Source Configuration items are all set to Commanded 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
Commanded
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
Path Generator Axis #4
Master
Source
Axis #2
Master
Source
Axis #3
Master
Source
Axis #1
Figure 8-11. 3-Axis Analog Follower / Parallel Structure / Source = Commanded Position 4
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