14
MMRG Series
IC501
IC502
C509
C511
C512
S3
S0
C510
S1
S2
COMMON
REVERSE
CW
Speed Adjust Potentiometer
Use a 10K ohm, 1/4 W potentiometer for speed control. The motor can
operate in one direction (unidirectional) or two directions (bidirectional)
depending on how the speed adjust potentiometer is connected to the
drive.
For unidirectional operation in the foward direction, connect the speed
adjust potentiometer as shown in Figure 7(a).
For unidirectional operation in the reverse direction, connect the speed
adjust potentiometer as shown in Figure 7(b).
For bidirectional operation, connect the speed adjust potentiometer
as shown in Figure 7(c). The motor does not operate when the
potentiometer is in the center position. Turning the potentiometer
clockwise (CW) from the center position causes the motor to rotate in
the forward direction, while turning the potentiometer counterclockwise
(CCW) causes rotation in the reverse direction.
IC501
IC502
C509
C511
C512
S3
S0
C510
S1
S2
COMMON
FORWARD
CW
(a) Unidirectional Forward
(b) Unidirectional Reverse
IC501
IC502
C509
C511
C512
S3
S0
C510
S1
S2
COMMON
FORWARD
CW
REVERSE
(c) Bidirectional
Figure 7. Speed Adjust Potentiometer Connections
