What is VFD used for?
1.Energy saving and consumption reduction effect
The effect of energy saving and consumption reduction is particularly obvious, especially during the use of motors such as fans and water pumps. We know that the higher the speed of motors such as fans and water pumps, the more energy they consume. Therefore, when the air volume or water volume that such motors need to output is not large, using the frequency converter to adjust the speed can be very convenient. Good energy saving and consumption reduction. Other motors can also use the frequency converter to adjust the speed to achieve the purpose of reducing energy loss.
2. Soft start protects the motor
Normally, the current required when starting a motor is very large, about seven or eight times the rated current. When such a large current passes through the motor's wire group and components, a large amount of heat will be generated, which will not only consume energy but also greatly affect the service life of the motor. After the motor is equipped with a frequency converter, the soft start function of the frequency converter can be used, that is, it starts from zero speed and zero voltage (you can also increase the torque appropriately), which has a good protection effect on the motor parts. .
3. Easy to control and can be controlled remotely
The operating system of the frequency converter is simple and highly selectable. The user can control the frequency converter to start from zero and increase the speed evenly, and can also choose different acceleration modes (such as straight line, S-shaped line, automatic, etc.). During the operation of the motor, the speed can be adjusted at any time as needed, and the response speed is fast. It can also be connected to the PLC system for remote control purposes.
4. Protect motor components when stopping
The frequency converter can not only protect the motor when starting, but also has a good protective effect when the motor stops running. When the motor is stopped, the internal components will vibrate violently, which will increase the friction between the bearings or gears, waste energy and reduce the service life. The inverter has various stop control methods, including uniform deceleration stop, automatic stop, DC braking, etc. You can choose at will, which can greatly reduce the loss between the various components of the motor and increase the service life. In addition, because the motor components are less damaged, the stability coefficient of the entire system is greatly increased.