LEESON Chassis Mount Regenerative Control: 175721.00 - Manual (Page 43)

Application Notes
Forward-Reverse Switch
Use a single-pole, two-position switch with a single speed adjust
potentiometer to plug reverse the motor (Figure 20). The MIN SPD
setting is in effect for either direction.
Figure 20. Forward-Reverse Switch
37
S0
S1
S2
S3
TB502
REV
FWD
10K OHM
CW