Brushless DC motor can not start how to do? What are the causes of failure?

Brushless DC motor is widely used, whether it is a household appliance, or medical equipment, or model, plant protection products, are inseparable from the brushless DC motor, favored by the majority of customers.

But in actual use, DC brushless motors occasionally appear a variety of problems, such as brushless normal start condition, it is very annoying, why can not start how to do? What are the causes of the failure?Vacuz to everyone!

In fact, this is also relatively common, to solve this problem can not start, the first step is to find out the cause, commonly as follows.

1. the lack of power, the connected power switch is not closed, there is a blown fuse, the main circuit of the motor or control circuit fuse blown, the contactor and other power control device failure, or the line is broken or loose. Should start with the fuse, gradually check the circuit and control circuit parts, determine the cause, and then repair.

2. mechanical failure, it is possible that the motor machinery and equipment or transmission mechanism is stuck, the load is too heavy when starting, resulting in brushless start problem. The power should be quickly cut off to find out the mechanical fault.

3. Stator winding or rotor winding has a broken circuit, or may be wound rotor brushes and slip rings are not in contact, should be checked and repaired.

4. The bearing is damaged or stuck, the bearing should be replaced. The belt is pulled too tight and the friction increases, the belt tightness should be adjusted.

These are some of the reasons why DC brushless motor can not start. Before using the motor, we should follow the above introduction to check. If it still can not start, you need to find a professional technician for maintenance.

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