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class="jyms"><p><span>簡(jiǎn)要描述：</span>西門子直流調(diào)速器6RA7081整機(jī)配件銷售維修(2)若查詢故障時(shí)輸出電流并不大，此時(shí)應(yīng)檢查電子熱過載繼電器參數(shù)是否適當(dāng)。</br>(3)檢查hall及線是否有不良。</br>7過熱保護(hù)(oh)</br>(1)檢查溫度開關(guān)線插頭是否插好，用萬用表檢測(cè)溫度開關(guān)線是否斷開，若斷開則可斷定溫度開關(guān)線斷路或溫度開關(guān)損壞;</br>(2)風(fēng)扇不良過熱保護(hù);</br>(3)溫度過高，散熱效果較差，變頻器內(nèi)部溫度較高過熱保護(hù);</p></div> <ul> <li><img src="/skins/515066/images/dot.png" /><span>產(chǎn)品型號(hào)：</span>6RA7081-6DV62-0/6DS62-0</li> <li><img src="/skins/515066/images/dot.png" /><span>廠商性質(zhì)：</span>經(jīng)銷商</li> <li><img src="/skins/515066/images/dot.png" /><span>更新時(shí)間：</span>2022-03-17</li> <li><img src="/skins/515066/images/dot.png" /><span>訪問量：</span>896</li> </ul> <div id="5rbjpr1" class="pro_detail_btn"> <a href="#cpzx" class="prodtl_btn1">產(chǎn)品咨詢</a><a href="/contact.html" class="prodtl_btn2">聯(lián)系我們</a> </div> </div> <div id="5rbjpr1" class="clear"></div> </div>  </div> <div id="5rbjpr1" class="ny_content_bd"> <div id="5rbjpr1" class="w1200 clear"> 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$(this).addClass('none'); }else{ $(this).removeClass('none'); } }); } </script> <section class="proshowParameter"> <table style=" margin-bottom:20px;"> <tbody> <tr><th>品牌</th><td>Siemens/西門子</td><th>應(yīng)用領(lǐng)域</th><td>化工,石油,能源,印刷包裝,紡織皮革</td></tr><tr><th>西門子直流調(diào)速器維修銷售</th><td>6RA7081-6DV62-0/6DS62-0</td> <th></th><td></td></tr> </tbody> </table> </section><p><strong>西門子直流調(diào)速器6RA7081整機(jī)配件銷售維修</strong></p><p><strong>西門子直流調(diào)速器6RA7081整機(jī)配件銷售維修</strong></p><p><span style=";font-family:Calibri;font-size:14px">(2)<span style="font-family:宋體">若查詢故障時(shí)輸出電流并不大，此時(shí)應(yīng)檢查電子熱過載繼電器參數(shù)是否適當(dāng)。</span></span></p><p><span style=";font-family:Calibri;font-size:14px">(3)<span style="font-family:宋體">檢查</span><span style="font-family:Calibri">hall</span><span style="font-family:宋體">及線是否有不良。</span></span></p><p><span style=";font-family:Calibri;font-size:14px">7<span style="font-family:宋體">過熱保護(hù)</span><span style="font-family:Calibri">(oh)</span></span></p><p><span style=";font-family:Calibri;font-size:14px">(1)<span style="font-family:宋體">檢查溫度開關(guān)線插頭是否插好，用萬用表檢測(cè)溫度開關(guān)線是否斷開，若斷開則可斷定溫度開關(guān)線斷路或溫度開關(guān)損壞</span><span style="font-family:Calibri">;</span></span></p><p><span style=";font-family:Calibri;font-size:14px">(2)<span style="font-family:宋體">風(fēng)扇不良過熱保護(hù)</span><span style="font-family:Calibri">;</span></span></p><p><span style=";font-family:Calibri;font-size:14px">(3)<span style="font-family:宋體">溫度過高，散熱效果較差，變頻器內(nèi)部溫度較高過熱保護(hù)</span><span style="font-family:Calibri">;</span></span></p><p><span style=";font-family:Calibri;font-size:14px">(4)<span style="font-family:宋體">對(duì)于帶有整流橋的七單元</span><span style="font-family:Calibri">igbt</span><span style="font-family:宋體">的變頻器，其溫度檢測(cè)是利用</span><span style="font-family:Calibri">igbt</span><span style="font-family:宋體">內(nèi)部的熱敏電阻的阻值變化進(jìn)行溫度檢測(cè)的，若出現(xiàn)</span><span style="font-family:Calibri">“oh"</span><span style="font-family:宋體">過熱保護(hù)，有如下原因：比較器壞，輸出高電平所致</span><span style="font-family:Calibri">;</span><span style="font-family:宋體">比較器比較電阻變值，比較電壓較低</span><span style="font-family:Calibri">;igbt</span><span style="font-family:宋體">內(nèi)部的熱敏電阻阻值異常。</span></span></p><p><span style=";font-family:Calibri;font-size:14px">8<span style="font-family:宋體">過壓保護(hù)</span><span style="font-family:Calibri">(ou)</span><span style="font-family:宋體">。</span></span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">上海虎恒電氣有限公司</span></span></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><span style=";font-family:Calibri;font-size:14px">(1)<span style="font-family:宋體">變頻器在減速中出現(xiàn)過壓保護(hù)，是由于負(fù)載慣性較大所致，此時(shí)應(yīng)減速時(shí)間，若仍無效，可加裝制動(dòng)單元和制動(dòng)電阻來消耗能量</span><span style="font-family:Calibri">;</span></span></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><span style=";font-family:Calibri;font-size:14px">(2)<span style="font-family:宋體">因更換電源板或主控板所引起的過壓保護(hù)，需參數(shù)電阻</span><span style="font-family:Calibri">;</span></span></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><span style=";font-family:Calibri;font-size:14px">(3)<span style="font-family:宋體">輸入電源電壓高于變頻器額定電壓太多，也可能出現(xiàn)過壓。</span></span></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><span style=";font-family:Calibri;font-size:14px">9<span style="font-family:宋體">欠壓保護(hù)</span><span style="font-family:Calibri">(lu)</span></span></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><span style=";font-family:Calibri;font-size:14px">(1)<span style="font-family:宋體">首先檢查輸入電源電壓是否正常，接線是否良好，是否缺相</span><span style="font-family:Calibri">;</span></span></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><span style=";font-family:Calibri;font-size:14px">(2)“04"<span style="font-family:宋體">值參數(shù)電阻是否適當(dāng)</span><span style="font-family:Calibri">;|</span></span></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><span style=";font-family:Calibri;font-size:14px">(3)<span style="font-family:宋體">因更換電源板或主控板所引起的欠壓保護(hù)，需參數(shù)電阻</span><span style="font-family:Calibri">;</span></span></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><span style=";font-family:Calibri;font-size:14px">(4)<span style="font-family:宋體">電壓檢測(cè)回路，運(yùn)放等器件不良也能欠壓。</span></span></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><span style=";font-family:Calibri;font-size:14px"><span style="font-family:宋體">西門子自動(dòng)化設(shè)備維修服務(wù)：變頻器、調(diào)速器、控制器、觸摸屏、工控機(jī)、</span><span style="font-family:Calibri">PLC</span><span style="font-family:宋體">模塊、</span><span style="font-family:Calibri">6RA80/6RA70</span><span style="font-family:宋體">。</span></span></p><p><span style=";font-family:Calibri;font-size:14px"><span style="font-family:宋體">電流密度：在單位橫截面積上通過的電流大小</span><span style="font-family:Calibri">,</span><span style="font-family:宋體">稱為電流密度。單位為</span><span style="font-family:Calibri">A/mm2</span><span style="font-family:宋體">。電位：在電場(chǎng)中</span><span style="font-family:Calibri">,</span><span style="font-family:宋體">單位正電荷從</span><span style="font-family:Calibri">a</span><span style="font-family:宋體">點(diǎn)移到參考點(diǎn)時(shí)</span><span style="font-family:Calibri">,</span><span style="font-family:宋體">電場(chǎng)力所做的功</span><span style="font-family:Calibri">,</span><span style="font-family:宋體">稱為</span><span style="font-family:Calibri">a</span><span style="font-family:宋體">點(diǎn)對(duì)參考點(diǎn)的電位。進(jìn)行理論研究時(shí)</span><span style="font-family:Calibri">,</span><span style="font-family:宋體">常取無限遠(yuǎn)點(diǎn)作為電位的參考點(diǎn)</span><span style="font-family:Calibri">;</span><span style="font-family:宋體">在實(shí)用工程中</span><span style="font-family:Calibri">,</span><span style="font-family:宋體">常取大地作為電位的參考點(diǎn)。電位的單位為</span><span 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