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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>can編碼器廠(chǎng)家直銷(xiāo),編碼器</p><p><span>***更新：</span>2021-01-31 09:20:20</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="msqgesy" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">桁萱自動(dòng)化科技（上海）有限公司</a></p><p><span>聯(lián)系人：</span>儲(chǔ)焰青</p><p><span>郵箱: </span>272205845@qq.com</p><p><span>電話(huà): </span>18017028721</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.sh-hengxuan.com</p><p><span>手機(jī): </span>021-57658113</p><p><span>地址: </span>嘉好路1333號(hào)501</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="wciqous" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="wai2w2s" class="box"><p><p style="text-indent:25px">編碼器干擾的問(wèn)題，選擇什么樣的輸出對(duì)抗干擾也很重要，一般輸出帶反向信號(hào)的抗干擾要好一些，即A+~A-,B+~B-,Z+~Z-，其特征是加上電源8根線(xiàn)，而不是5根線(xiàn)(共零)。帶反向信號(hào)的在電纜中的傳輸是對(duì)稱(chēng)的，受干擾小，在接受設(shè)備中也可以再增加判斷（例如接受設(shè)備的信號(hào)利用A、B信號(hào)90°相位差，讀到電平10、11、01、00四種狀態(tài)時(shí)，計(jì)為一有效脈沖，此方案可有效提高系統(tǒng)抗干擾性能（計(jì)數(shù)準(zhǔn)確））。何為長(zhǎng)線(xiàn)驅(qū)動(dòng)？普通型編碼器能否遠(yuǎn)距離傳送？長(zhǎng)線(xiàn)驅(qū)動(dòng)也稱(chēng)差分長(zhǎng)線(xiàn)驅(qū)動(dòng)，5V，TTL的正負(fù)波形對(duì)稱(chēng)形式，由于其正負(fù)電流方向相反，can編碼器廠(chǎng)家直銷(xiāo)，對(duì)外電磁場(chǎng)抵消，故抗干擾能力較強(qiáng)。普通型編碼器一般傳輸距離是100米，如果是24V HTL型且有對(duì)稱(chēng)負(fù)信號(hào)的，傳輸距離300-400米。經(jīng)濟(jì)化，can編碼器廠(chǎng)家直銷(xiāo)，關(guān)于多個(gè)操控工位，只需一個(gè)旋轉(zhuǎn)編碼器的本錢(qián)，以及更首要的裝置，can編碼器廠(chǎng)家直銷(xiāo)、保護(hù)、損耗本錢(qián)下降。can編碼器廠(chǎng)家直銷(xiāo)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="can編碼器廠(chǎng)家直銷(xiāo),編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637425141615514538/751281.png"></div><p style="text-indent:25px">旋轉(zhuǎn)增量式編碼器以轉(zhuǎn)動(dòng)時(shí)輸出脈沖，通過(guò)計(jì)數(shù)設(shè)備來(lái)知道其位置，當(dāng)編碼器不動(dòng)或停電時(shí)，依靠計(jì)數(shù)設(shè)備的內(nèi)部記憶來(lái)記住位置。這樣，當(dāng)停電后，編碼器不能有任何的移動(dòng)，當(dāng)來(lái)電工作時(shí)，編碼器輸出脈沖過(guò)程中，也不能有干擾而丟失脈沖，不然，計(jì)數(shù)設(shè)備記憶的零點(diǎn)就會(huì)偏移，而且這種偏移的量是無(wú)從知道的，只有錯(cuò)誤的生產(chǎn)結(jié)果出現(xiàn)后才能知道。解決的方法是增加參考點(diǎn)，編碼器每經(jīng)過(guò)參考點(diǎn)，將參考位置修正進(jìn)計(jì)數(shù)設(shè)備的記憶位置。在參考點(diǎn)以前，是不能保證位置的準(zhǔn)確性的。為此，在工控中就有每次操作先找參考點(diǎn)，開(kāi)機(jī)找零等方法。這樣的編碼器是由碼盤(pán)的機(jī)械位置決定的，它不受停電、干擾的影響。湖北編碼器價(jià)格多少脈沖編碼器的抗污染能力差，容易損壞。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="can編碼器廠(chǎng)家直銷(xiāo),編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637425141640592745/8619114.png"></div><p style="text-indent:25px">增量型編碼器輸出的通常是并行輸出。串行輸出就是通過(guò)約定，在時(shí)間上有先后的數(shù)據(jù)輸出，這種約定稱(chēng)為通訊規(guī)約，其連接的物理形式有RS232、RS422(TTL)、RS485等。串行輸出連接線(xiàn)少，傳輸距離遠(yuǎn)，對(duì)于編碼器的保護(hù)和可靠性就較大提高了，一般高位數(shù)的編碼器都是用串行輸出的。串行輸出編碼器連接的設(shè)備是比較容易的，但是連接非德國(guó)系的設(shè)備，接口就是問(wèn)題了，桁萱自動(dòng)化科技（上海）有限公司提供各種接口輸出的儀表，可以解決這樣的問(wèn)題。串行：時(shí)間上，數(shù)據(jù)按照約定，有先后；空間上，所有位數(shù)的數(shù)據(jù)都在一組線(xiàn)纜上（先后）發(fā)出。</p><p style="text-indent:25px">編碼器（多圈）與PLC的連接有多種方法,簡(jiǎn)單介紹幾種：SSI或各種總線(xiàn)連接，是要用**SSI接口或總線(xiàn)模塊，有的PLC還沒(méi)有，成本較高。并行連接，進(jìn)PLC的開(kāi)關(guān)輸入模塊，但多圈的位數(shù)高，要十幾、二十幾根線(xiàn)纜，可靠性降低，成本上去了。4--20mA（選擇有模擬量輸出功能的多圈編碼器）進(jìn)模擬量電流模塊，精度有所**。MODBUS RTU進(jìn)485通訊接口（要有雙向功能的），要專(zhuān)門(mén)編程，速度可能降低，有時(shí)設(shè)備地址會(huì)丟。一般的單圈位數(shù)低的用第二種方法。而多圈的要看應(yīng)用了，簡(jiǎn)單點(diǎn)的用4--20mA的方法。編碼器直接安裝于高速端，馬達(dá)抖動(dòng)須較小，不然易損壞編碼器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="can編碼器廠(chǎng)家直銷(xiāo),編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637425141745866100/8243873.png"></div><p style="text-indent:25px">使用編碼器，能夠避免因設(shè)備系統(tǒng)電氣原因（如斷電、信號(hào)開(kāi)路...）而造成的位置測(cè)量進(jìn)程的中斷，但如果編碼器與目標(biāo)測(cè)量部件之間的機(jī)械連接發(fā)生了改變，同樣還是需要在設(shè)備安裝完成時(shí)或機(jī)械系統(tǒng)恢復(fù)正常連接后，進(jìn)行必要的原點(diǎn)校準(zhǔn)初始化操作的。有人可能會(huì)說(shuō)，一支多圈編碼器的價(jià)格太昂貴了，是普通增量型編碼器的好多倍?？墒窃?huà)說(shuō)回來(lái)，這所謂的“昂貴”，其實(shí)也就是多出了幾千塊的成本而已，并且還是一次性投入。而每次產(chǎn)線(xiàn)停機(jī)恢復(fù)過(guò)程中，因原點(diǎn)校準(zhǔn)初始化操作而損失的設(shè)備產(chǎn)能，怎么也得以萬(wàn)（甚至十萬(wàn)）為單位計(jì)算了吧，而且，這可是要長(zhǎng)期逐次累積的喲。通過(guò)線(xiàn)路及電纜的情況調(diào)查，基本將問(wèn)題鎖定在編碼器傳輸線(xiàn)路上。湖北編碼器價(jià)格多少</p><p style="text-indent:25px">編碼器則可以實(shí)現(xiàn)在其多圈旋轉(zhuǎn)范圍內(nèi)不出現(xiàn)重復(fù)的位置信號(hào)輸出。can編碼器廠(chǎng)家直銷(xiāo)</p><p style="text-indent:25px">編碼器由機(jī)械位置決定的每個(gè)位置，它無(wú)需記憶，無(wú)需找參考點(diǎn)，而且不用一直計(jì)數(shù)，什么時(shí)候需要知道位置，什么時(shí)候就去讀取它的位置。這樣，編碼器的抗干擾特性、數(shù)據(jù)的可靠性較大提高了。由于編碼器在定位方面明顯地優(yōu)于增量式編碼器，編碼器生產(chǎn)廠(chǎng)家運(yùn)用鐘表齒輪機(jī)械的原理，當(dāng)中心碼盤(pán)旋轉(zhuǎn)時(shí)，通過(guò)齒輪傳動(dòng)另一組碼盤(pán)(或多組齒輪，多組碼盤(pán))，在單圈編碼的基礎(chǔ)上再增加圈數(shù)的編碼，以擴(kuò)大編碼器的測(cè)量范圍，這樣的編碼器就稱(chēng)為多圈編碼器，它同樣是由機(jī)械位置確定編碼，每個(gè)位置編碼不重復(fù)，而無(wú)需記憶。can編碼器廠(chǎng)家直銷(xiāo)</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/3095254.html</p></div></div></div></div></div><div id="wm2wesq" class="page-right twoColRt"><div id="ecqwu2s" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="usi244q" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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