Leeson PWM DC Control: 174299 Manuale Utente Scaricare il pdf (Pagina 27)

Application Notes

Multiple xed speeds

Replace the speed adjust potentiometer with series resistors with a total series resistance of

10K ohms (Figure 14). Add a single pole, multiposition switch with the correct number of pos-

tions for the desired number of xed speeds.

TOTAL SERIES

RESISTANCE

10K OHMS

Figure 14. Multiple Fixed Speeds

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Leeson PWM DC Control: 174299 Manuale Utente Pagina 27