1、Excellent Performance: This driver features PI control algorithm, low noise, low vibration, low heat. Single ended, pulse with direction and double pulse signal input.2、Convenient Current Setting: 16 gears are optional, and the maximum output current of this driver can arrive 7A. The current will be halved after 1s of standstill.3、Multi Protection: This driver has the functions of overvoltage and undervoltage alarm, phase current overcurrent protection, motor phase open circuit detection, etc.4、Spontaneous Pulse: The built in oscillator, dial code or switching value signal to control the start and stop of motor, and the 16 speed can be switched automatically.5、Easy Operation: Pulse, direction and enable terminals have constant current input function, and can be directly connected to the input signal without adding a series resistance to reduce voltage and limit current protection.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin