LEESON NEMA 4X SCR Control: 174107.00 - Manual (Page 39)

33 Application Notes
MOTOR
A1 A2
FWD
BRAKE
REV
DYNAMIC
BRAKE
RESISTOR
INHIBIT
SO501 2-PIN HEADER
Use LEESON accessory plug harness
(part number: 900282.01) to mate
with 2-pin header (SO501) on control board.
Figure 17. Reversing Circuit Connection
Reversing
A dynamic brake may be used when reversing the motor
direction (Figure 17). Use a three-pole, three-position switch
rated for at least the maximum DC armature voltage and
maximum braking current. Wait for the motor to stop completely
before switching it to either the forward or reverse direction. See
the dynamic braking section, page 24, for recommended
dynamic brake resistor sizes. NOTE: Model 174107 is equipped
with the reversing feature, but not the dynamic brake feature.