Siemens High Speed Counter and Encoder Module SIMATIC 505 Manuale Utente Scaricare il pdf (Pagina 35)

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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Siemens High Speed Counter and Encoder Module SIMATIC 505 Manuale Utente Pagina 35