... BRAKE port is braking input end,low level.14.The driver has ACCpotentiometer for start-up accelerationc, accelerating time from 0 ... DC15V to DC50VCONNECTION DIAGRAM:A complete brushless DC motor driver control system includes brushless DC motor, brushless DC motor ... driver,DC power and control signal.Below is typical system chart. WS-3H15 Brushless Dc Motor Driver, BLDC motor driver, 15A, ...