描述

進(jìn)刀量用伺服電機(jī)來控制，伺服電機(jī)的控制由PLC實(shí)現(xiàn)。PLC產(chǎn)生兩路信號(hào)，一路為伺服脈沖信號(hào)，它的頻率和伺服電機(jī)的轉(zhuǎn)速成正比，它的個(gè)數(shù)決定了伺服電機(jī)旋轉(zhuǎn)的角度。另一路為方向電平信號(hào)DIR。

當(dāng)DIR為高電平時(shí)，電機(jī)順時(shí)針旋轉(zhuǎn);相反，當(dāng)DIR為低電平時(shí)，電機(jī)為逆時(shí)針旋轉(zhuǎn)。磨削中分為粗切和精切，精切的精度要求很高，一般切削量不能大于0.05mm，伺服前進(jìn)lmm，就發(fā)了1600個(gè)脈沖，相當(dāng)于一個(gè)脈沖就前進(jìn)了0.625um，精度非常高，從而使得絲杠得到精確定位。伺服控制刀盤進(jìn)刀時(shí)，進(jìn)刀速度不是不變的，當(dāng)?shù)侗P接近版輥的時(shí)候要自動(dòng)開始減速，以免過沖影響磨削質(zhì)量?？刂频侗P進(jìn)刀的絲杠上有三個(gè)接近開關(guān)，一個(gè)是用來原點(diǎn)定位的，另外兩個(gè)分別是進(jìn)、退接近開關(guān)。

3)變頻器模塊:為實(shí)現(xiàn)三相異步電動(dòng)機(jī)速度調(diào)整和穩(wěn)定運(yùn)轉(zhuǎn)，我們采用變頻器來調(diào)速電機(jī)。變頻器的模擬輸人電壓端子接受4DA速度電壓值后，根據(jù)內(nèi)部設(shè)定的參數(shù)值來對(duì)異步電動(dòng)機(jī)調(diào)速。調(diào)速方式為WF型，這種調(diào)速方式在改變變頻器輸出頻率的同時(shí)改變變頻器的輸出電壓，兩者的比值為定，以保持異步電動(dòng)機(jī)磁通不變。該調(diào)速方式簡(jiǎn)便、可靠，能夠滿足電機(jī)調(diào)速的要求。

4)觸摸屏:觸摸屏與PLC相配合，使對(duì)設(shè)備的任意多的操作控制、大量的運(yùn)行信息反饋通過對(duì)觸摸屏編程予與實(shí)現(xiàn)，PLC與觸摸屏之間通過串行接口通訊，連線簡(jiǎn)潔，整個(gè)系統(tǒng)更緊湊、美觀。

3系統(tǒng)的軟件設(shè)計(jì)

歐美品牌停產(chǎn)的，常用的“PLC”備品備件

我司產(chǎn)品應(yīng)用于以下領(lǐng)域：

1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》

2,《智能平鋼化爐系統(tǒng)制造》

3,《PLC可編程輸送控制系統(tǒng)》

4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》

6,《化工廠藥液恒流量計(jì)算機(jī)控制系統(tǒng)》

7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動(dòng)化控制系列

本特利，英維思，伍德沃德，?？怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂，ACSO，力士樂等各大品牌的DCS系統(tǒng)配件，機(jī)器人系統(tǒng)配件，大型伺服系統(tǒng)備件。

Motorola MVME162-012A MVME162-12A 10

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