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plc控制柜與變頻控制柜有哪些區(qū)別？

發(fā)布時(shí)間：2021-04-25 來源：http://www.cr4.com.cn/ 瀏覽量：

在PLC和變頻器一起運(yùn)用的自控系統(tǒng)中，應(yīng)該側(cè)重留心以下事項(xiàng)：

In the automatic control system of PLC and inverter, the following items should be paid attention to

1、PLC供電電源與動(dòng)力系統(tǒng)電源(變頻器電源)分別配備，且PLC的供電應(yīng)該選擇阻隔變壓器;

1. PLC power supply and power system power supply (inverter power supply) are equipped respectively, and the power supply of PLC should select the blocking transformer;

2、動(dòng)力線盡量與信號(hào)線分隔，信號(hào)線要做屏蔽;

2. The power line shall be separated from the signal line as far as possible, and the signal line shall be shielded;

3、無論是模擬信號(hào)輸入仍是模擬信號(hào)輸出，模擬量通道一概運(yùn)用信號(hào)阻隔模塊;

3. Whether it is analog signal input or analog signal output, analog channel uses signal blocking module;
仿威圖機(jī)柜

4、PLC程序里做軟件濾波規(guī)劃;

4. PLC program to do software filtering planning;

5、信號(hào)地與動(dòng)力地分隔規(guī)劃。plc控制柜廠家用來邏輯操控,首要用于組織的動(dòng)作流程操控；

5. Signal ground and power ground are planned separately. PLC control cabinet manufacturers are used for logic control, mainly for the organization of the action process control;

現(xiàn)在在自動(dòng)化操控系統(tǒng)中，低壓配電柜供貨商變頻器的運(yùn)用也越來越廣，作為電力設(shè)備集成商，祥科的工程師經(jīng)常將變頻器與PLC集成在同一或相鄰的柜內(nèi)，電機(jī)發(fā)起操控箱這樣會(huì)導(dǎo)致變頻器對(duì)PLC模擬量煩擾而形成收集數(shù)據(jù)的不穩(wěn)定或呈現(xiàn)其他缺點(diǎn)。

Now in the automatic control system, the frequency converter of low-voltage distribution cabinet supplier is more and more widely used. As a professional integrator of power equipment, engineers of Xiangke often integrate the frequency converter and PLC in the same or adjacent cabinet, and the motor initiates the control box, which will cause the frequency converter to disturb the PLC analog quantity and form the instability of data collection or other shortcomings.

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