LEESON Chassis Mount PWM Control: M1740009.00 - Manual (Page 23)

17
S3
S2
S1
R1
R2
R4
TOTAL SERIES
RESISTANCE
10K OHMS R3
Figure 11. Multiple Fixed Speeds
Replace the speed adjust potentiometer with series
resistors with a total series resistance of 10K ohms
(Figure 11). Add a single pole, multi-position switch with the
correct number of positions for the desired number of fixed
speeds.
Multiple fixed speeds
Application Notes