Siemens High Speed Counter and Encoder Module SIMATIC 505 Manuel d'utilisateur Page 35

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Applications
5-2
Series
505 High Speed Counter
and Encoder Module User
s Manual
5.1 Sprayer Example
5.1.1
Description A
reversible DC motor drives a paint sprayer up and down a vertical
assembly
. A quadrature encoder on the drive shaft senses the direction and
relative position of the sprayer
. Channel 1 of the HSC will be used to
enable the sprayer during a pre-defined section of travel. (See Figure 5-1.)
The encoder resolution is 500 cycles per revolution. One shaft revolution
equals 1 inch of sprayer travel. When encoder signal A leads, the direction
of travel is up.
LS2 – Reverse Motor
“Stop Spray”
“Start Spray”
LS1 – (Home) Reverses Motor
Figure 5-1
Sprayer Application
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