Instructions for use of potentiometer models: High power small volume potentiometer speed control 7-24V BLDC Brushless and aisle less controller, single-button version supports single-button free switching acceleration and deceleration with power-off memory function Potentiometer speed control version supports PLC simulation signal 0-5V speed. The standard power distribution positioner directly regulates speed without external control signals. It increases clockwise and decreases counterclockwise. It is also suitable for external analog quantity control PLC 0-5. Unplug the potentiometer wire, the external analog quantity control signal 0-5 and the cable of are respectively connected to the input signal terminal of the brushless controller board, provided that the two wires are ok., Weight: 0.06393405598 pounds, Manufacturer: Rtxbvg