This 3 phase wires are used to changed the current direction to motor so that the motor can run continuously in the same direction. If there are no black and red wires or it is not clear which are the power wires it may be necessary to open the motor and trace the wires going to the hall sensors.

Brushless Motor Shield Tb6605ftg Seeed Wiki
Brushless motor wiring colors. The hall supply wires will branch off and go to all three sensors. Power goes in one wire and comes out of the other. From a bldc controller we also can see 3 corresponding wiresuyellow vgreen wblue or ayellow bgreen cblue. You will know each motor wire color and means. Three thiner hall sensor wires. For common brushless dc motor it has hall sensors so the total motor wires is 8.
The most common color coding for the hall power is red positive black ground. The brushless motors are ac alternating current. Greentime haute qualité 36v 250w e bike brushless contrôleur de moteur bldc pilote de moteurprofitez de super offres de la livraison gratuite de la protection de lacheteur et dun retour simple des colis lorsque vous achetez en chine et dans le monde entier. A quick explanation of the order of wires on a brushless motor. Power goes both ways in all the wires changing the magnetism of the components in the motor and inducing the spin. Brushless motor controller schematic the two most important electric motors are the ac induction motor and permit true brushless running the next dc motor improvement came in the form of a solid state speed control product brushless dc by an electronic circuit ordinarily bldc motors use hall effect devices hfd to sense rotor position and control the electronic drive of the motor however by monitoring arrow electronics panasonic industry and stmicroelectronics join forces to deliver iot.
Three thicker phase wires. Its counter intuitive and motoresc builders confuse things by having the wires color coded in the first place.