Delta's inverter has made the motor drive system complete two hopes: first, the motor has completed the operation of higher power; The second is to make the motor controllable and prevent the problem of the big cow pulling the trolley. However, the problem in front of engineers is: there are so many types of motor loads, and the performance requirements for the equipped inverter are also very different, how to choose the appropriate inverter for the motor?
Delta's inverter is translated into English as VFD (Variable Frequency Drive), which may be one of the few instances of modern technology being back-translated from Chinese to English. The inverter is an electric transmission element of the AC motor that is applied to the frequency conversion skills and microelectronics skills to control the AC motor by changing the frequency and amplitude of the power supply of the motor.
Selecting the appropriate inverter for the entire motor motion system has been a headache for engineers.
In general, the selection of Delta inverters should be considered according to the type of controlled object, speed regulation scale, static speed accuracy, starting torque, etc., so that it can be easy to use and economical while satisfying the process and production requirements.
The general experience is:
Choose how big the motor is, and sometimes it can be a larger size.
The power factor of the high-power inverter is low, and it is recommended to install an AC reactor at the inlet end of the inverter.
In this way, one is to improve the power factor, and the other is to suppress high-frequency harmonics. If it is frequently started and braked, the brake unit and brake resistor should be installed.
If you need to reduce noise, you can choose a water-cooled inverter;
If braking is required, a brake chopper and a braking resistor are required. Or you can choose a four-quadrant product, which can feed back energy to the grid and save electricity
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PLC progressive scanning standard work preparation.
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Problem Description:
How does Delta inverter use a PC to control it?
Solution(s):
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1. The environment is suitable for some high temperature (higher than 50 degrees) and high altitude (higher than 1000 meters).
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