Brushless motor power by the controller through brushless motor, brushless motor to operate in one direction. Watch, in the direction of the motor shaft and motor shaft is clockwise rotation is called forward, counterclockwise rotation is called reverse. the following two cases, the adjustment of the brushless motor should be considered to: (1)If the brushless motor rotation, found that should be forward, but the actual motor reversed, then you must adjust the steering motor. (2)If the working state of the brushless motor is in a certain state and time to forward, to reverse, in another state and time must be in accordance with the motor to control the working status and time to correct. in general dc motor operation process, change the polarity of the magnetic field direction or the armature voltage, can change the motor turning. Brushless dc motor flux produced by permanent magnets, can change direction, and due to the unidirectional conductivity of the semiconductor, power supply voltage reverse connection is not very convenient. So in this case, usually by controlling the stator winding in order to change the motor rotation direction.