Fast matching method of brushless DC motor and controller phase
Brushless DC motors, as the name implies, do not have any brushes! Its no-load resistance mainly comes from the rotating contact point between the rotor and the stator, so the general brushless motor uses ball bearings at both ends of the rotor to reduce the friction, so that there is not a lot of frictional resistance and heat. It has extremely high efficiency (80%-90%) and high speed. It provides high-efficiency, energy-saving and environmentally-friendly power sources for all kinds of equipment on a wide range of transmission equipment.
The brushless DC motor is controlled by 3-phase 6-shot, so the three Hall states correspond to 6 output states of 3 motor lines. There are 36 kinds of connection methods according to different combinations, of which 6 kinds of connection can make the brushless motor run at normal speed. And the three connection methods of the 120 degree controller are forward rotation, and the other three connections are reverse rotation. The 60-degree controller has four connections that allow the brushless DC motor to operate at normal speed, with two forward and two reverse. So we actually only need to adjust the maximum of 120 degrees 7 times, or 60 degrees to 13 times to solve the problem.
The fast matching method of the brushless DC motor and the controller phase must be prepared before commissioning;
The first step: use the Hall detector to measure whether the motor Hall is normal, and ensure that the debugging is successful. (Do not use a multimeter to test, not only will it damage the Hall)
The second step; to determine the degree of the motor and the degree of controller matching (60 degrees or 120 degrees is different, can not be replaced), to ensure that it will not be futile.
The third step; after the controller is powered on, both the rotor and the Hall have a 5 volt output. At this time, you can connect the motor cable to test it.
First, we must let the brushless DC motor turn normally. Usually, the Hall plug is directly plugged in and the motor line is adjusted. The following is a description of six regular connection methods for brushless DC motors. In order to facilitate the memory, the general controller is placed on the top and the motor is placed on the bottom. We can remember this:
1, the color is connected to the color
2, blue to blue, other 2 colors
3, yellow to yellow, other 2 colors
4, green to green, the other 2 colors
5, the upper blue is yellow, the other two colors are adjusted
6, the upper yellow is blue, the other 2 colors are reversed
Second, the phase is wrong, the brushless DC motor performance is not turning, the slow turn noise is large, the fast flying noise is large, and the normal four kinds of situations. The motor has low noise and moderate speed during normal operation. When adding a point, add a small electric door. Listen to the sound of the motor and judge that the motor can move. Suddenly adding too much blocking current may damage the controller.
If the above 6 methods are not correct? Then try the following way
Third, the line in which the Hall plug is placed in the middle is picked up and aligned with one line on the side. Repeating the above six actions, there must be a connection to make the brushless motor operate normally.
The above connection can make the brushless DC motor operate normally, but it is not necessarily a positive rotation, but remember that the brushless motor has a positive rotation when it is reversed. If you want to adjust to forward rotation, you can adjust the motor phase A phase B relative to each other, and the Hall line A phase C is relatively adjusted. (That is, the line that is in the middle of the Hall plug does not move, the two sides are reversed, and the motor is immediately turning). After the above debugging controller and motor match, it is completed.
If you want to buy a food processor motor, please pay attention to sharpener motor.
