Tiếng Việt
Installing ABB inverter running in V/F mode ACS580 series, is the content that VPIC will introduce to you in detail. Helps you to master the concept as well as how to set basic parameters in V/F mode.
1 – What is V/F control mode in ABB inverter setting?
V/F control mode is the basic mode commonly found in all types of inverters. With this mode, the output voltage of the inverter will be proportional to the frequency. That is, the frequency of the inverter will be from 0 – Fmax corresponding to 0 – Vmax.
One thing to note is that when setting the frequency for the motor, because the voltage can only increase from 0 – Fbase, if you increase the frequency beyond this level, the voltage will not increase anymore.
Therefore, when you install the ABB inverter to use, it is necessary to carefully check the nameplate of the motor to set the motor Fbase parameters. It helps the inverter to control the voltage correctly, avoiding the fact that when using the inverter, the motor will be weak and make a noise.
2 – What should be paid attention to when installing ABB inverter running V/F?
Parameters such as max frequency, base frequency, and max voltage of the motor are the things you need to pay attention to when setting V/F mode. The V/F characteristic can not only be set in a straight line, but also can be set to the load characteristic depending on the application.
For example, for applications that need a large starting torque, it is necessary to set the inflection point so that the frequency is low, the voltage is higher than that to help the inverter start the motor better.
When installing ABB inverter with V/F control mode, it is necessary to set protection parameters such as time, current and other protection modes. Thus, the new ABB inverter can help the motor start well.
When it comes to heavy duty applications, the torque compensation parameter must be set at a low frequency so that the engine can be started easily.
3 – Some applications of control mode V / F
Almost all inverters have default V/F control settings, so it can be used for different industries.
In which there are basic applications such as controlling fan pumps, conveyors, mixers, etc., it is possible to install ABB inverters to run in V/F mode.
With special types of fan pumps, it is necessary to use an inverter that can adjust the V/F curve so that when starting the pump, the inverter does not report an error.
V / F control mode is a simple control mode, with low accuracy, so for jobs that require accuracy, it is recommended to use closed and open vector modes.
Thus, VPIC has introduced in detail the installation of ABB inverter in V/F control mode. If you need further advice and support, please contact the hotline: 0896 422 224
