Application Notes
Multiple fixed speeds
Replace the speed adjust potentiometer with series resistors with a total series resistance
of 10K ohms (Figure 8). Add a single pole, multi-position switch with the correct number of
positions for the desired number of fixed speeds.
S3
S2
S1
R1
R2
R3
R4
Total Series
Resistance
10K Ohms
Figure 8. Multiple Fixed Speeds
Adjustable speeds using potentiometers in series
Replace the speed adjust potentiometer with a single pole, multi-position switch, and two
or more potentiometers in series, with a total series resistance of 10K ohms. Figure 9
shows a connection for fixed high and low speed adjust potentiometers.
S3
S2
S1
S3
S2
S1
High
Speed
CW
5K Ohm
CW
5K Ohm
Low
Speed
Figure 9. Adjustable Fixed Speeds Using Potentiometers in Series
Summary of Contents for XP-AC Series
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