Description: Stepper Motor Driver Controller Speed Regulator Pulse Generator PWM Generation Controller without Magnet.    Specifications: Type:Stepper Motor Driver Controller;  Size:Approx. 73*51*37mm;  Controller Frequency Signal:High: 5.8KHZ-127KHZ;  Middle:590HZ-15.8KHZ;  Low:82HZ-2.3KHZ;  Frequency Measurement:PUL & GND 2 Ports;  Power Input:15-160VDC (Recommended to use) / 12VDC;  Quantity:1pcs.    Features: 1. This module is a pulse generating module, which is supplied as a signal to a stepping driver. If you want to control a stepper motor, you must also be equipped with a driver.  This simple controller + stepper drive + stepper motor + DC power supply can form a simple control platform.  2. PUL+ and PUL- are the positive and negative of the pulse; EN+ and EN- are the positive and negative of the enable terminal; DIR+ and DIR- are the positive and negative of the direction. Connect these 6 lines to the 6 ports corresponding to pulse, direction, and enable of the driver. Note that if you want to use the open or stop function, the ENA enable terminal on the controller must be connected to the driver with a common cathode or common anode.  3. 2 groups of power input, 2 groups only need to connect to one power supply.  One group is the power supply connected to DC 15-160VDC (recommended to use this group of power) The other group is 12VDC. If it is powered by 12VDC, the power supply is connected to "5-12V in", and the power supply is negative to "common cathode".  4. The motor's forward and reverse rotation and start and stop can be controlled by pressing buttons.  5. The speed of the motor can be controlled by adjusting the potentiometer to change the frequency.  6. The original motor's forward and reverse rotation and on/off switches are ordinary self-locking switches.    Package Included: 1 X Stepper Motor Driver Controller