变频器的功能设置概述(三) 第2讲 变频器的频率给定方式

The Summarization of AC Inveter's Function Setting

所谓频率给定方式,就是调节变频器输出频率的具体方法,也就是提供给定信号的方式。变频器常见的频率给定方式主要有:操作器键盘给定、接点信号给定、模拟信号给定、脉冲信号给定和通讯方式给定等。这些频率给定方式各有优缺点,必须按照实际的需要进行选择设置,同时也可以根据功能需要选择不同频率给定方式之间的替加和切换。本文主要阐述的就是变频器的这几种频率给定方式。

The frequency setting method is the detailed way to adjust the output frequency of AC inverter.That is to say,it is to suppy the different input setting way.Normally there are many kinds of the frequency setting methods,such as keybord setting,contact setting,analog setting,pulse setting,communication setting and so on.The user should make the right choise for these methods according to the fact.This paper will describe the frequency setting methods.