Can the vacuum suction pump be frequency converter?
Yes, the inverter is used for energy saving, Dongguan fuchuang agent, Taian, Dong Yuan, holip frequency converter. You go and ask.
If your requirement is to control the pressure of the vacuum suction pump, you can do it with a PID1. assume that you have a controller, and then enter the pressure setpoint you want into the controller2. connect the sensor (pressure feedback value) to the controller3. with the PID instruction, the controller compares the settings and the feedback, and outputs the value to the converter after the PID adjustmentIf the load changes, the controller automatically adjusts the output of PID converter, so that the feedback value close to the set value, regardless of how the load changes, the controller will adjust the frequency converter speed of vacuum pump, the pressure close to the set value
Addition can be added, but the ordinary frequency converter uses PID operation to achieve the purpose of protecting the motor, but the control loop is complex, and the control accuracy is not high, and the conversion is complex. It is impossible to distinguish the motor blocking current and the normal load current, which may cause the motor to work in a locked state for a long time, resulting in the burning of motor.Wei Gen AC80 vector inverter vacuum pump special program does not need to add any external equipment, the inverter itself can achieve accurate control of motor current and speed. Wei Gen inverter can quickly identify the blocking current and load current, can immediately identify and alarm the stop, to prevent further expansion of the fault.
Vacuum suction pump with frequency converter, a pressure transmitter, the pressure is converted to electrical signals (such as 4-20mA), and then controlled by the frequency converter for the instrument, of course, the high point of the inverter can be directly connected with a pressure transmitter, and then set up well to the pressure point on the line.Frequency converter (Variable-frequency, Drive, VFD) is the application of frequency conversion technology and microelectronics technology, by changing the power supply frequency of the motor to control AC motor power control equipment. The frequency converter is mainly composed of rectifier (AC DC converter), filter, inverter (DC AC converter), brake unit, drive unit, detection unit, micro processing unit and so on. Inverter by internal IGBT drive voltage and frequency off to adjust the output power, the power supply voltage required to provide according to the actual needs of the motor, so as to achieve the purpose of speed, energy saving, in addition, there are a lot of protection drive, such as over-current, over-voltage, overload protection and so on. With the continuous improvement of the degree of industrial automation, inverter has also been widely used.
