LEESON Chassis Mount PWM Control: M1740009.00 - Manual (Page 10)

4 Installation
Wiring
•
Use 18 AWG wire for speed adjust potentiometer wiring.
Use 16 AWG wire for motor and AC line voltage wiring.
•
Twist logic wires (for speed adjust potentiometer and
inhibit) to avoid picking up unwanted elertrical noise. Use
shielded cable if wires are longer than 18 in. (46 cm).
•
Keep logic wires away from power carrying lines or
sources of electrical noise that can cause erratic
operation. Never run speed adjust potentiometer or
inhibit wires in the same conduit as the motor and AC line
voltage wires.
•
It may be necessary to earth ground the shielded cable.
If noise is produced by devices other than the drive,
ground the shield at the drive end. If noise is generated
by a device on the drive, ground the shield at the end
away from the drive. Do not ground both ends of the
shield.