A frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control an AC motor by changing the frequency of the motor's working power supply.So what functions does the inverter have besides changing the frequency? Let's learn more with the inverter manufacturer Oakwood Technology.

1. Soft start function

When the motor is started directly through the power frequency, it will produce 7 to 8 times the rated current of the motor.This current value will increase the electrical stress of the motor winding and generate heat, thereby reducing the life of the motor and having a great impact on the power grid.The use of frequency conversion and speed regulation can fully reduce the starting current, improve the carrying capacity of the winding, reduce the impact of the starting current on the motor and the power grid, and extend the service life of the motor.At the same time, it will not cause the peak-valley difference to be too large, causing the voltage-sensitive equipment in the power supply network to trip or work abnormally.

2. Frequency conversion and energy saving.

Since the power consumption of the fan and water pump is proportional to the cube of the speed, when the consumption is not high, frequency conversion is used to reduce the speed, and the energy-saving effect is obvious.

3. The control system is simple to operate.

The frequency conversion speed regulation can be started at zero speed, and the multi-stage speed mode control of the frequency converter is used to adjust the operating speed at any time according to the process flow. The speed change can be achieved by remote control PLC or other controllers.

4. Reduce mechanical wear and tear.

When the power frequency is activated, the motor or the shafts and gears of the connected mechanical parts will vibrate violently.This vibration will intensify the wear and tear of machinery and reduce the service life of mechanical parts and motors.In frequency conversion and speed regulation, the stop method can be selected according to the on-site situation. The correct control method can reduce the impact, make the entire system more reliable, extend the service life of the machinery, and maximize the benefits for the enterprise.

5. Adjustable torque limit

After frequency conversion control, the corresponding torque limit can be set to protect the machinery from damage, thereby ensuring the continuity of the process and the reliability of the product.At present, frequency conversion technology not only makes the torque limit adjustable, but also the torque control accuracy can reach about 3% to 5%.