Causes and Solutions for High Current in Brushless Motors

Causes and Solutions for High Current in Brushless Motors

Brushless motors are widely used in high-tech fields such as drones and robotics due to their efficiency and quiet operation. However, during practical use, there can be instances where the current in brushless motors is too high. This not only affects motor performance but can also lead to equipment damage. So, what causes high current in brushless motors? Today, X-TEAM will share some common causes and solutions with you.

1. Overload

The current in a brushless motor is directly related to its load during operation. If the load exceeds the motor’s capacity, the motor will consume more current to maintain its speed. In this case, it is recommended to check the connected device to ensure that the load is within the motor’s rated range. If the load is indeed too heavy, consider reducing the load or replacing it with a suitable motor.

2. Wiring Issues

Poor wiring or poor connections can also cause abnormal increases in current. If the motor’s connection wires are worn, loose, or short-circuited, it can result in significant fluctuations in current during operation. Regularly inspect the motor wiring to ensure good connections and promptly replace any damaged cables.

3. Internal Motor Faults

Damage inside the brushless motor, such as winding short circuits or coil insulation failures, can lead to excessive current during normal operation. If you suspect internal issues with the motor, it is advisable to contact professionals for inspection and repair.

4. Unstable Power Supply

An unstable power supply voltage can also cause an increase in the current of the brushless motor. When the voltage is too low, the motor needs to consume more current to achieve the set speed. It is essential that the power supply provides stable voltage and sufficient current to ensure the motor operates normally.

5. Improper Controller Settings

The parameter settings of the motor controller can also affect the motor’s operating state. If the PID parameters or current limit values of the controller are improperly set, it may result in high current during operation. It is recommended to adjust the controller parameters reasonably based on the specific performance and application scenario of the motor to achieve optimal operating conditions.

Conclusion

High current issues in brushless motors are common but can usually be effectively resolved through careful troubleshooting and appropriate handling. As a high-tech company specializing in the development of brushless motors and drone accessories, X-TEAM is always committed to providing customers with high-performance and highly reliable electric products.