一、Load Characteristics

1. As far as the principle of compressing gas is concerned, the screw compressor, like the piston compressor, belongs to the volumetric compression machinery; in terms of its movement form, the rotor of the compressor is the same as the power machinery, which performs high-speed rotating motion. Therefore, the screw compressor has the characteristics of both.

2. The screw air compressor is composed of a pair of male and female rotors (or screws) that are meshed with each other in parallel and rotate in the cylinder, so that the air between the rotor tooth slots continuously produces periodic volume changes, and the air moves along the axis of the rotor. It is transported from the suction side to the output side to realize the whole process of suction, compression and exhaust of the screw air compressor.

3. The screw compressor has a high addendum linear speed, and the speed can reach more than 10,000 revolutions per minute, so it can often be directly connected with a high-speed driving machine. Therefore, its volume, mass, footprint and exhaust pulsation per unit displacement are much smaller than those of piston compressors. Screw compressors do not have wearing parts such as air valves and piston rings like piston compressors, so they are reliable in operation, long in life, and easy to realize remote control. In addition, since there are no reciprocating parts, there is no unbalanced inertial force (moment), so the screw compressor has a small foundation and can even operate without a foundation.

二、Requirements for Inverter Application

Through the given pressure setting of the frequency converter, the feedback pressure signal of the air compressor and the set pressure are controlled by PID to adjust the output of the frequency converter, so that the air pressure in the air storage tank of the air compressor is stable within the range of the given pressure value during use. Pressure is constant.

三、Debugging Guide

1. On-site pictures:

2. Wiring diagram:


3. Parameter description:

四、Matters Needing Attention

1. When setting the sleep frequency, it must be lower than the wake-up frequency value.

2. Do a good job of dust prevention measures, and the user must clean and maintain it regularly.