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plc控制柜與變頻控制柜有哪些區(qū)別？

發(fā)布時間：2021-04-25 來源：http://www.digitalsj.cn/ 瀏覽量：

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

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

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

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、動力線盡量與信號線分隔，信號線要做屏蔽;

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

3、無論是模擬信號輸入仍是模擬信號輸出，模擬量通道一概運用信號阻隔模塊;

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、信號地與動力地分隔規(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)在在自動化操控系統(tǒng)中，低壓配電柜供貨商變頻器的運用也越來越廣，作為電力設備集成商，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)，電機發(fā)起操控箱這樣會導致變頻器對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。

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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