100% new and high quality Color:As shown Size:Standard size Package Includes:1Pc Driver Board Japan Nidec miniature brushless driver board, 24 hours brushless servo motor drive, Support the production of 100-line encoders with PWM speed regulation/forward/reverse/emergency stop functions. The test function is very good. There are three styles: 1 : Half-board design without speed measuring optocoupler. 2 : Without speed measuring optocoupler, Suitable for driving micro brushless motors; 3 : with speed measuring optocoupler, Support 100-line dual-channel encoder, suitable for making high-precision code disc brushless motor; One plug-in cable is provided free of charge with each driver board. Experiment to connect Nidec 24h brushless motor, Voltage test 9V~12V~24V can run, 9V, no-load current: 70ma, speed: about 2246 rpm; 12V, no-load current: 80mA, speed: about 3020rpm; 24 V, no-load current: 110 Ma, rotational speed: about 6100 rpm. Simple test operation method of the motor: the red wire is connected to the positive electrode, the black wire is connected to the negative electrode, the yellow wire is connected to the start wire and the 1K resistor is connected to the positive electrode of the power supply, less than 12V, no resistance, and then the green PWM wire connected to the negative electrode can run at high speed. The green line input 20kHz pulse width signal can adjust the speed. The blue wire connected to the negative pole can be switched between positive and negative poles. Pay attention to the switching of forward and reverse after shutdown to prevent instantaneous surge. The encoder power supply voltage is 5V. If the encoder function is not required, it can be ignored. Please pay attention to the wiring when using. Beware: It is strictly forbidden to connect the brushless driver board to the wrong side. A surge-free regulated DC power supply is required, Such as batteries, regulated power supplies, etc. Note: 1. Please allow 5-10mm differences due to manual measurement, thanks. 2. The actual color of the product may be slightly different from the picture, and the website is caused by various factors such as the brightness of the monitor and the brightness of the light. _x000D_