Instructions for use of potentiometer models: BLDC wide voltage 7-24V high-power small-volume potentiometer speed control Brushless and Hallless controller, single-button version supports single-button free switching acceleration and deceleration with power-off memory function potentiometer speed control version supports PLC 0-5V simulation Signal speed. The standard power distribution positioner directly regulates the speed without external control signals. It increases clockwise and decreases counterclockwise. It is also suitable for external PLC 0-5 analog quantity control. Unplug the potentiometer cable, the external 0-5 analog quantity control signal and ground wire are respectively connected to the input signal terminal of the brushless driver board, as long as two wires are OK., Weight: 0.06393405598 Pounds, Manufacturer: Aisuoka