This module is supplied as a stepper training signal. To control the stepper motor, but must also have the drive to use. The controller has a high, medium, and low total of three types of frequency signals that can be used to select a jumper. The measurement frequency can reach two ports PUL and GND (common cathode terminal). It is possible to control the forward and reverse gear of the motor by pressing the button. The motor speed can be controlled by adjusting the frequency of the potentiometer. PUL+ and PUL-pulsed positive and negative; EN+ and EN- must activate the positive and negative terminals; DIR+ and DIR- are the positive and negative directions. These six lines are connected to drive the corresponding pulse, the direction, so six p ports Power supply: 15-160VDC or 5-12VDC. If you are using a 5-12 VDC power supply, connect the positive end to the DC 5-12V input, conne ...