Adjustable speeds using potentiometers in series – LEESON SCR Thyristor Motor Control User Manual
Page 50
44
Application Notes
SPEEDMASTER™ OPERATION MANUAL
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 22 shows a
connection for fixed high and low speed adjust potentiometers.
CW
S3
S2
S1
CW
5K
OHM
5K
OHM
HIGH
SPEED
LOW
SPEED
Figure 22. Adjustable Fixed Speeds Using
Potentiometers in Series
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