YF-20 Speed Controller 7-30V DC Digital Display Driver Control Module for Stepper Motor Speed Control

General Description The YF-20 speed controller is a digital control module designed for controlling the speed of stepper motors. It connects directly to the motor without requiring an external driver, providing a simple and efficient solution. This controller is made with a high-quality printed circuit board and features a digital display that shows the percentage of the actual speed relative to the maximum speed. It allows for real-time speed regulation, with precise settings from 0.1 to 999 RPM and an adjustable angle from 1 to 9999 degrees, enabling a full 360-degree rotation. Technical Specifications Model: YF-20 Control Voltage: 7~30V Current: Up to 2A Motor Compatibility: Two-wire and four-wire stepper motors, models 42 and 57 Speed: 0.1~999 rpm (typical maximum speed for 42 and 57 motors: approximately 350 rpm) Angle: Adjustable from 1~9999 degrees Other Information