Features Built-in Microcontroller Function: Our stepper motor driver features a built-in microcontroller function and smoothing filter, ensuring smooth and efficient operation without acceleration or deceleration. Advanced Chip and Settings: Equipped with a 32-bit motor control smart chip, this digital stepper driver supports subdivision settings from 200 to 51200 and adjustable current settings from 0 to 6.5A, providing precise control and customization options. Enhanced Control Algorithm and Signal Isolation: Utilizing a vector current, speed, and position closed-loop control algorithm with optical coupler isolated differential signal input, this stepper motor driver delivers high precision and reliability with a pulse response frequency of up to 200KHZ. Intuitive Display and User-Friendly Operation: Featuring a 4-digit LED digital tube display and 4 keys, this stepper motor driver enables intuitive and convenient operation, enhancing user experience and ease of use. Comprehensive Protection Functions: With built-in over current, over voltage, over speed, overheat, and tracking error protection functions, this stepper motor driver ensures safety and reliability in various operating conditions. Specification: Item Type: Stepper Motor Driver Material: Aluminum Alloy Continuous Output Current: Minimum Value: 1A Maximum Value: 4.2A Input Supply Voltage: Minimum: 18VAC Typical: 24VAC Maximum: 80VDC Logic Input Current: Minimum: 7mA Typical: 10mA Maximum: 20mA Overall Power Maximum: 120W Pulse Frequency: Minimum Value: 0 Maximum Value: 200kHz Insulation Resistance Minimum: 500MΩ Digital Output Port Logic Current Maximum: 100mA Digital Output Port Voltage Withstand Maximum: 24V Cooling Method: Natural Cooling Or External Heat Sink Use Environment: Use Situation: Avoid Dust, Oil Mist And Corrosive Gas As Much As Possible Temperature: 0℃-50℃ Humidity: 40-90%RH Vibration: 10-55Hz/0.15mm Storage Temperature: -20℃-+65℃ Weight: Approx. 300g / 11oz Package List: 1 x Stepper Motor Driver Note: AC input voltage in AC18V ？ 80V, DC input DC24V ？ 110V can work normally, power supply power is not higher than 200W, the higher the voltage input, the greater the current setting motor torsion, high speed performance, but the motor heat more, in principle, as long as to meet the use, the smaller the current setting the better. Package List 1 x Stepper Motor Driver