Application of FGI FD100 low voltage frequency converter in screw air compressor

1. Overview

Air compressor is a kind of equipment that converts the prime mechanical energy into pressure energy, which is the core of the pressure system and the basic product of modern industrial development. Suitable for production lines, machine tools and various places requiring compressed gas.

2. Implementation plans

（1）Inspiratory phase

The rotor rotates, and the intake end gap begins to fill through the suction port, while another pair of convex angles is ready to compress, which ends when filling over its entire length

（2）Compression stage

The Yang rotor convex angle begins to engage with the corresponding Yin rotor, and when the two convex angles pass through the sealing line, the air will intercept the Yang convex angle and begin to squeeze the intercepted air

（3）The exhaust stage

The extrusion movement of the Yang rotor gradually reduces the volume of the trapped air and simultaneously squeezes it to the exhaust end to complete the exhaust air.

The system adopts the PID function of FGI FD100 low voltage frequency inverter for constant voltage control.

The system composition is as shown in the figure below：

3. Application advantages

(1) FGI FD100 low voltage frequency inverter speed regulation, with fast response and stable working rate;

(2) The parameters of the FGI FD100 low voltage frequency inverter and the control parameters of the system can be set through the touch screen;

(3) FGI FD100 low voltage frequency inverter adopts advanced PID control technology to ensure the stable gas supply pressure of air compressor equipment;

(4) FGI FD100 low voltage converter, with strong soft starting ability, effectively avoid impact, reduce noise;

(5) The FGI FD100 low-voltage frequency inverter has the characteristics of intelligent sleep and various operation protection.