The roller shutter door is mainly controlled by the frequency converter, but do you know some small knowledge about the frequency converter? Let the installation and maintenance personnel of Jinan electric roller shutter door explain it for you.
When using the asynchronous door opener, the frequency converter is an indispensable accessory for installing and using the fast rolling shutter door. The effect of fast switching through frequency conversion is very important for the auxiliary function of daily operation of fast rolling shutter door.
The so-called fast gate inverter is a device that converts the power frequency power supply (50Hz or 60Hz) into AC power supply of various frequencies to realize the speed regulating operation of the motor.
There are many kinds of classification methods for the inverter used in the fast rolling shutter door of the door factory. According to the working mode of the main circuit, it is divided into current type inverter and voltage type inverter.
Control inverter and high carrier frequency PWM control inverter; According to the working principle, it can be divided into vector control inverter, V / F control inverter and slip frequency control inverter. According to application classification, it can be divided into single-phase inverter, three-phase inverter, general inverter, high-performance special inverter and high-frequency inverter.
At present, the voltage and frequency of the AC power supply used in various countries are 400V / 50Hz or 200V / 60Hz (50Hz), whether it is for household or factory use. We usually call the device that converts the fixed voltage and frequency AC into variable voltage or frequency AC as "frequency converter".
In order to generate a variable voltage and frequency, the equipment needs to first convert the alternating current of the power supply into direct current power (DC). The frequency converter used for motor control can change the voltage and frequency to meet the needs of high-speed operation of the fast roller shutter door.
The editor will briefly introduce the inverter of the roller shutter door here. I hope you can understand this through this article and pay attention to us http://www.jnyuqilin.com Yes, learn more!