With forward and reverse switch, potentiometer knob with switch, forward and reverse can be controlled by PLC. The forward and reverse switch can be replaced with a jog switch.The display tube and the module are connected by a cable. The cable may loosen and fall off during express delivery. need to insert it tightly by themselves. If you mind, don't take pictures.With 0- digital scale positioning.Make sure that the positive and negative connections are correct before powering on, and the wiring should not touch the heat sink, which may burn the circuit board. Note that this is not a power module, and the motor must be connected to adjust the speed. If the motor is not connected, the output of the multimeter will not change, and it cannot be connected to AC. For brushed motors.Input voltage: DC 10-55V (equal to the rated voltage of the motor)Output voltage: linear under loadMaximum current: 60AContinuous current: 40ASpeed regulation type: current regulationSpeed regulation mode: potentiometer (linear)Support motor: DC brush motorForward rotation reverse: SupportSpeed range: 0 -100%Control frequency: 15KHzWiring type: terminal KnobSpecification: 100K (with switch)Wiring type: fence terminal blockProduct weight: 170gNote:Electric bicycles cannot be used, including electric bicycle motors.The input voltage must be divided into positive and negative can not input 220V household electricity.The input voltage should be equal to the rated voltage of the motor (within 10-55V).The digital display is the motor full speed percentage 0-100, not the actual speed of the motor.The input voltage must be divided into positive and negative.The input voltage should be equal to the rated voltage of the motor within 10-55VDC.Colour:Green + Silver + BlackMaterial:PCB + plastic + metalSize:100MM x 76MM x 28MMPackage Contents:1 x Speed Controller ModuleOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.