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clearfix"><h1>河北485編碼器服務(wù)至上桁萱自動(dòng)化科技供應(yīng)</h1><div id="yifhgnu" class="proBig"><div id="f3umeb8" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhxzdh/637425141740846906/3123358.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rfmjlnu" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhxzdh/637425141740846906/3123358.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kzb3v3k" 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>河北485編碼器,編碼器</p><p><span>***更新：</span>2021-01-20 01:12:54</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="kur3s9s" 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: </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] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="puwoqs7" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3lnpmeg" class="box"><p><p style="text-indent:25px">增量旋轉(zhuǎn)編碼器選型有哪些注意事項(xiàng)？應(yīng)注意三方面的參數(shù)：1、械安裝尺寸，包括定位止口，軸徑，安裝孔位；電纜出線方式；安裝空間體積；工作環(huán)境防護(hù)等級(jí)是否滿(mǎn)足要求。2、分辨率，即編碼器工作時(shí)每圈輸出的脈沖數(shù)，河北485編碼器，是否滿(mǎn)足設(shè)計(jì)使用精度要求。3、電氣接口，編碼器輸出方式常見(jiàn)有推拉輸出（F型HTL格式），電壓輸出（E），集電極開(kāi)路（C，常見(jiàn)C為NPN型管輸出，C2為PNP型管輸出），長(zhǎng)線驅(qū)動(dòng)器輸出，河北485編碼器。其輸出方式應(yīng)和其控制系統(tǒng)的接口電路相匹配，河北485編碼器。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。河北485編碼器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北485編碼器,編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637425141740846906/3123358.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。可是話說(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。河北485編碼器在ELTRA編碼器中角位移的轉(zhuǎn)換采用了光電掃描原理。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北485編碼器,編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637425141720084840/5701700.png"></div><p style="text-indent:25px">編碼器工作電源如果選擇DC/DC隔離電源，主要使用在供電電源系統(tǒng)有很多同時(shí)在工作的器件，現(xiàn)場(chǎng)出現(xiàn)較為嚴(yán)重干擾的情況。增量信號(hào)接收的光電耦合器隔離，應(yīng)用于增量脈沖信號(hào)的接收單元電路中。目前，在自動(dòng)檢測(cè)系統(tǒng)中越來(lái)越多的采用光電耦合器來(lái)提高系統(tǒng)的抗共模干擾能力。光電耦合器是一種電光電耦合器件,它的輸入量是電流，輸出量也是電流，但是輸入、輸出之間從電氣上看卻是絕緣的。保證了輸入回路和輸出回路的電氣隔離。在有大型電機(jī)和變頻器的場(chǎng)合下，如果碰到有干擾問(wèn)題，那很有可能是遇見(jiàn)電機(jī)外殼“交流漏電”。了電動(dòng)機(jī)本身同時(shí)也是一個(gè)發(fā)電機(jī)，在啟動(dòng)的瞬間，電機(jī)動(dòng)力與“發(fā)電”反電動(dòng)勢(shì)是不平衡的這，種不平衡使電機(jī)產(chǎn)生加速運(yùn)動(dòng)，但這種不平衡也有可能會(huì)在電機(jī)外殼上產(chǎn)生瞬間的交流漏電，我們?cè)跈z查電機(jī)外殼的接地只是靜態(tài)測(cè)得的電阻量，無(wú)法確定在電機(jī)啟動(dòng)的瞬間能夠有很好的交流導(dǎo)通接地。在這種情況下，建議編碼器外殼（包括編碼器的轉(zhuǎn)軸）要與電機(jī)外殼絕緣隔離，例如選擇帶有絕緣襯套的軸套型編碼器，或采用絕緣聯(lián)軸器和法蘭，將編碼器與電機(jī)隔離。</p><p style="text-indent:25px">現(xiàn)在還有一種增量值、定位電子凸輪開(kāi)關(guān)三輸出的編碼器，除了上面介紹的RS485值信號(hào)、A/B增量值信號(hào)以外，還同時(shí)提供了多點(diǎn)定位電子凸輪開(kāi)關(guān)，可預(yù)設(shè)定位開(kāi)關(guān)，到預(yù)設(shè)位置可直接輸出開(kāi)關(guān)信號(hào)，控制減速、停車(chē)。這樣，這一個(gè)編碼器可同時(shí)輸出連續(xù)信號(hào)顯示位置、輸出增量值信號(hào)作速度閉環(huán)、輸出定位電子凸輪開(kāi)關(guān)控制減速、定位！ssi的數(shù)據(jù)形式比較簡(jiǎn)單，一般不包含CRC校驗(yàn)、產(chǎn)品內(nèi)部信息及地址，在運(yùn)動(dòng)控制中，有提出更快、信息更多的要求時(shí)，各家編碼器廠家推出了各自的方案，實(shí)際上都是在SSI的基礎(chǔ)上的改良的，基本物理格式都差不多，RS422（或RS485）,由時(shí)鐘脈沖觸發(fā)，只是速度更快，可達(dá)2-10MHZ，并可增加編碼器的內(nèi)部信息、CRC校驗(yàn)、故障報(bào)警的功能，有的可以增加地址，有的可以增加正余弦增量信號(hào)作冗余。由于目前的協(xié)議不同一，這些輸出都要連接**的接口，故具體使用，還是建議直接找各自的編碼器廠家咨詢(xún)?yōu)楹?。編碼器的位置是從零位標(biāo)記開(kāi)始計(jì)算的脈沖數(shù)量確定的，而編碼器的位置是由輸出代碼的讀數(shù)確定的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北485編碼器,編碼器" src="https://tyunfile.71360.com/UploadFile/shhxzdh/637425141648961932/80797.png"></div><p style="text-indent:25px">編碼器SSI輸出，同時(shí)提供了增量值信號(hào)A、B兩相1Vpp，是派什么用處的？可以讓信號(hào)作為位置閉環(huán)，而增量信號(hào)作為速度閉環(huán)，構(gòu)成位置控制與速度控制的雙閉環(huán)系統(tǒng)，以達(dá)到位置的準(zhǔn)確（無(wú)位置沖過(guò)頭而振蕩）和速度的高效，這是一個(gè)較先進(jìn)的課題，目前國(guó)內(nèi)似乎還沒(méi)有看到有很好的應(yīng)用介紹。增量信號(hào)是正弦波信號(hào)，其可以用模擬電路細(xì)分，這樣，在編碼器兩個(gè)較小相鄰碼之間，還可以因?yàn)橄辔坏淖兓煌?，獲得更精細(xì)的分辨率，從而可以較大提高編碼器的分辨率。單圈編碼器，可以在機(jī)械軸旋轉(zhuǎn)一圈范圍內(nèi)，做到位置信號(hào)輸出的。河北485編碼器</p><p style="text-indent:25px">通過(guò)線路及電纜的情況調(diào)查，基本將問(wèn)題鎖定在編碼器傳輸線路上。河北485編碼器</p><p style="text-indent:25px">需要注意的是，此時(shí)增量式編碼器的U相信號(hào)的相位零點(diǎn)即與電機(jī)UV線反電勢(shì)的相位零點(diǎn)對(duì)齊，由于電機(jī)的U相反電勢(shì)，與UV線反電勢(shì)之間相差30度，因而這樣對(duì)齊后，增量式編碼器的U相信號(hào)的相位零點(diǎn)與電機(jī)U相反電勢(shì)的-30度相位點(diǎn)對(duì)齊，而電機(jī)電角度相位與U相反電勢(shì)波形的相位一致，所以此時(shí)增量式編碼器的U相信號(hào)的相位零點(diǎn)與電機(jī)電角度相位的-30度點(diǎn)對(duì)齊。有些伺服企業(yè)習(xí)慣于將編碼器的U相信號(hào)零點(diǎn)與電機(jī)電角度的零點(diǎn)直接對(duì)齊，為達(dá)到此目的，可以：用3個(gè)阻值相等的電阻接成星型，然后將星型連接的3個(gè)電阻分別接入電機(jī)的UVW三相繞組引線；以示波器觀察電機(jī)U相輸入與星型電阻的中點(diǎn)，就可以近似得到電機(jī)的U相反電勢(shì)波形；依據(jù)操作的方便程度，調(diào)整編碼器轉(zhuǎn)軸與電機(jī)軸的相對(duì)位置，或者編碼器外殼與電機(jī)外殼的相對(duì)位置；一邊調(diào)整，一邊觀察編碼器的U相信號(hào)上升沿和電機(jī)U相反電勢(shì)波形由低到高的過(guò)零點(diǎn)，使上升沿和過(guò)零點(diǎn)重合，鎖定編碼器與電機(jī)的相對(duì)位置關(guān)系，完成對(duì)齊。河北485編碼器</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2920694.html</p></div></div></div></div></div><div id="jyvs3jq" class="page-right twoColRt"><div id="nhoq3d8" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div 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