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三一pg电子机pg电子|pg电子机水淹后的修复及问题处理-山西pg电子设备制造有限公司
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id="ukatxf"><ljs class="plmpd"></ljs></tsulw><pg id="ipmwzm"><hhea class="yrxzqqi"></hhea></pg><obfom id="yiqhgkf"><mvqa class="emwgg"></mvqa></obfom><ao id="kgekbso"><bf class="lvfmp"></bf></ao><voy id="ckgnl"><xtsl class="jxlsz"></xtsl></voy><efarg id="veorxcv"><ex class="lbdqpg"></ex></efarg><jq id="pwnzg"><httw class="xcmvvgj"></httw></jq><tsmh id="gpcyxz"><sj class="elfeoe"></sj></tsmh><lxbi id="hctkb"><cfahd class="goqmst"></cfahd></lxbi><iewj id="htjilh"><ix class="nlpjjrg"></ix></iewj><lko id="edrpdj"><sa class="gvvbxpm"></sa></lko><ltxw id="zdbpw"><iqwep class="ckvbow"></iqwep></ltxw><kdhyb id="udtqgoc"><zjqnd class="bufzlej"></zjqnd></kdhyb><whd id="fatgd"><zvy class="ivovt"></zvy></whd><sk id="eyytktr"><yym class="qhivs"></yym></sk><limd id="zfiytvx"><pop class="hpaqfi"></pop></limd><dzmxb id="yonbkmr"><nzko class="eqeay"></nzko></dzmxb><zeh id="wtarasd"><mgdvx class="cfpej"></mgdvx></zeh><jzmf id="yvzvswh"><xaet class="pojoaky"></xaet></jzmf><iapm id="atfnuy"><zp class="csxdm"></zp></iapm><ywu id="bvqcp"><pq class="kbjrbtv"></pq></ywu><bllj id="jxljmxe"><sfk class="fjhszgm"></sfk></bllj><qbb id="mbysgx"><gq class="qnjrgg"></gq></qbb><tjgn id="cmbrsof"><jo class="yivaz"></jo></tjgn><nq id="prawuov"><hjbl class="qgvbaw"></hjbl></nq><qn id="bfmyeyl"><auzqw class="rdbgp"></auzqw></qn><ismmk id="afuvte"><oua class="prydwd"></oua></ismmk><yrzkh id="aocml"><atxvf class="poixnw"></atxvf></yrzkh><jlls id="bevqzc"><yna class="vqdobvw"></yna></jlls><ca id="gkusdnl"><udarm class="kjegz"></udarm></ca><wssb id="qfkeau"><pxmt class="ziirdkg"></pxmt></wssb><mmy id="tuzplal"><wdkz class="izkumt"></wdkz></mmy></div> <h1><a href='http://www.nfrihua.com/'>PG电子(中国)官方网站</a></h1> <div class="8f00b2 box-nav ny" id="fixedNav"> <a id='6869fc' class="8f00b2 logo" rel="follow" href="/"> <img src="http://img.dlwjdh.com/upload/12294/210127/3a33557c34dfb154b4efb2fdc13607d3@243X73.png" alt="山西pg电子设备制造有限公司"> </a> <ul id='31df2f' class="8f00b2 nav clearfix"> <li class="8f00b2 m"> <a id='7e6258' rel="follow" href="/" class="8f00b2 mmm" title="网站首页">网站首页</a><i class="8f00b2 ne">HOME</i></li> <li class="8f00b2 m"> <a href='http://www.nfrihua.com/scgc/'>生产工厂</a><i class="8f00b2 ne">FACTORY</i> </li> <li class="8f00b2 m"> <a href='http://www.nfrihua.com/products/'>产品展示</a><i class="8f00b2 ne">Product</i> <div id='6eb64a' class="8f00b2 sub cp"> <div id='10776b' class="8f00b2 nav-con"> <div id='9c3a14' class="8f00b2 fl"> <div id='fd15a6' class="8f00b2 top-a clearfix"> <div id='35de11' class="8f00b2 btt">产品展示</div> 在线咨询 </div> <ul id='cced13' class="8f00b2 navList clearfix"> <li><a href='http://www.nfrihua.com/p6/1177098.html'>pg电子机分配器</a></li> <li><a href='http://www.nfrihua.com/p6/1177089.html'>pg电子机管接头</a></li> <li><a href='http://www.nfrihua.com/p6/1177081.html'>喷嘴JTB9</a></li> <li><a href='http://www.nfrihua.com/p6/1177075.html'>pg电子机喷嘴</a></li> <li><a href='http://www.nfrihua.com/p6/1177069.html'>pg电子机球阀</a></li> <li><a href='http://www.nfrihua.com/p6/1177066.html'>pg电子机回转台</a></li> <li><a href='http://www.nfrihua.com/p6/1177062.html'>pg电子机回转支撑</a></li> <li><a href='http://www.nfrihua.com/p6/1177061.html'>减速机pg电子</a></li> <li><a href='http://www.nfrihua.com/p6/1176090.html'>pg电子机截割主轴</a></li> </ul> </div> <div id='2671f7' class="8f00b2 fr"> <img src="http://img.dlwjdh.com/upload/12294/210128/e86ab5b301f26567ef5870a3a86f6792.jpg" alt="pg电子机分配器"> <p id='ec39e1'>pg电子机分配器有很多种，其中2种分配器和3种分配器是主要和常用的。 它们也是组成更大分销商的基本单位。例如，4个分销商的内部由3个2分销商组成，而6个分销商实际上由1个2分销商和2个3分销商组成。 ...</p> <a href='http://www.nfrihua.com/p6/1177098.html'>更多</a> </div> </div> </div> </li> <li class="8f00b2 m"> <a href='http://www.nfrihua.com/case/'>合作案例</a><i class="8f00b2 ne">Case</i> <div id='3b8620' class="8f00b2 sub"> <div id='036394' class="8f00b2 er"> </div> </div> </li> <li class="8f00b2 m"> <a href='http://www.nfrihua.com/news/'>新闻中心</a><i class="8f00b2 ne">News</i> <div id='4a0c44' class="8f00b2 sub"> <div id='09fe1b' class="8f00b2 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id='fe4ae1' class="8f00b2 bdsharebuttonbox"> <i> 分享到：</i> <a href='/yyxw/#'></a> <a href='/yyxw/#'></a> <a href='/yyxw/#'></a> </div> <a href='/yyxw/#'>二维码分享 <div id="qrcode" style="display: none"> </div> </a> </span> </div> <div id='8fc196' class="8f00b2 caseContainer"> <p id='ea3ead' style="white-space:normal;box-sizing:content-box;margin-top:0px;margin-bottom:10px;padding:0px;text-indent:2em;font-size:14px;line-height:2em;overflow:hidden;width:752.5px;color:#666666;font-family:宋体, "background-color:#FFFFFF;"> <span id='2088f9' style="box-sizing:content-box;font-size:16px;">情况介绍：某矿井下pg电子工作面使用某公司生产的EBZ200悬臂式<a id='c5c001' rel="follow" href="http://www.nfrihua.com/" title="pg电子机" style="box-sizing:content-box;background:0px 0px;color:#428BCA;text-decoration-line:none;"><span id='77d16a' style="box-sizing:content-box;font-weight:700;">pg电子机</span></a>，由于在井下pg电子工作面回收不及时，造成pg电子机被淹15天，电控箱进水、电气元件受潮，无法使用。只好回收上井检修，在地面经过大烤箱加热烘烤并更换控制变压器后，用兆欧表摇测主回路相间、对地（去除检测线后）绝缘均在100兆欧以上，已达到正常绝缘值，随即供上额定电源准备进行试机。</span> </p> <p id='0722e2' style="white-space:normal;box-sizing:content-box;margin-top:0px;margin-bottom:10px;padding:0px;text-indent:2em;font-size:14px;line-height:2em;overflow:hidden;width:752.5px;color:#666666;font-family:宋体, "background-color:#FFFFFF;"> <span id='9b0f87' style="box-sizing:content-box;font-size:16px;">正常开机顺序：确认上级电源供电正常的情况下，且pg电子机前方和左右两侧无人时，司机方可将pg电子机的隔离开关打至通电状态，在操作台按下报警按钮发出开机警报（约10秒），启动油泵电机，放下后支撑和前铲板，抬起截割头，开启转载机，开动刮板运输机，开启耙爪，预警后开启截割电机，进行pg电子作业。</span> </p> <p id='c4fdc1' style="white-space:normal;box-sizing:content-box;margin-top:0px;margin-bottom:10px;padding:0px;text-indent:2em;font-size:14px;line-height:2em;overflow:hidden;width:752.5px;color:#666666;font-family:宋体, "background-color:#FFFFFF;"> <span id='4cc58a' style="box-sizing:content-box;font-size:16px;">故障现象1：pg电子机司机合上隔离开关后，有时工作正常；有时出现显示屏没有显示，油泵电机就直接启动，按停止和急停都无法停下来的奇怪现象。且时好时坏，表现极不稳定。</span> </p> <p id='137e05' style="white-space:normal;box-sizing:content-box;margin-top:0px;margin-bottom:10px;padding:0px;text-indent:2em;font-size:14px;line-height:2em;overflow:hidden;width:752.5px;color:#666666;font-family:宋体, "background-color:#FFFFFF;"> <span id='127fd8' style="box-sizing:content-box;font-size:16px;">故障原因分析：按下停止和急停按钮都无法停止油泵，这说明油泵的启动不受主控器控制，再者，有时候显示屏不亮，说明主控器的CPU根本没有工作，这时候油泵电机还会自己启动，说明和主控器没有直接关系。应该是单片机系统输出部分有问题；再加上显示屏有时还不亮；且该设备的电气系统曾经浸过水；在PLC的cpu的板上会留下水垢或其它杂质,在烘烤后,遗留在板上的杂质中的水份被蒸发,这些杂质基本处于高阻值状态,当温度下降后,这些杂质又会吸收空气中的水分,变成了半导体的状态,就造成了输出电路间歇性动作，因此系统工作极不稳定。综合以上原因分析，故障点应该是PLC内部输出部分由于进水，后期处理不彻底间歇性接通造成的。经现场检查CPU线路板带油泵的输出点因水淹，上面残留的已烘干的红色污渍未清理干净导致有时误动作故障。</span> </p> <p id='f60080' style="white-space:normal;box-sizing:content-box;margin-top:0px;margin-bottom:10px;padding:0px;text-indent:2em;font-size:14px;line-height:2em;overflow:hidden;width:752.5px;color:#666666;font-family:宋体, "background-color:#FFFFFF;"> <span id='77d290' style="box-sizing:content-box;font-size:16px;">处理过程：卸下并打开PLC,拆除CPU线路板。用酒精、毛刷清理干净，并在阳光下晾干，重新安装好后试机，并把电控箱其它电器元件都用棉纱蘸酒精清理了一遍，此时，显示屏显示正常，油泵没有出现自吸现象，说明显示屏有时不亮和油泵自吸故障已处理好。</span> </p> <p id='cd3bfa' style="white-space:normal;box-sizing:content-box;margin-top:0px;margin-bottom:10px;padding:0px;text-indent:2em;font-size:14px;line-height:2em;overflow:hidden;width:752.5px;color:#666666;font-family:宋体, "background-color:#FFFFFF;"> <span id='4e5e98' style="box-sizing:content-box;font-size:16px;">情况介绍：同样还是这台pg电子机，电控箱内的PLC经过酒精清洗晾干安装后，显示屏正常显示，可以正常开机。</span> </p> <p id='6ea4a4' style="white-space:normal;box-sizing:content-box;margin-top:0px;margin-bottom:10px;padding:0px;text-indent:2em;font-size:14px;line-height:2em;overflow:hidden;width:752.5px;color:#666666;font-family:宋体, "background-color:#FFFFFF;"> <span id='33c4c1' style="box-sizing:content-box;font-size:16px;">故障现象2：pg电子机司机合上隔离开关后，在操作室按下报警按钮发出开机警报（约10秒），启动油泵电机，油泵运转正常，当在操作台开启转载机时，转载机接触器不吸合，通过观察孔可以看到按下转载机启动按钮时，PLC输入和输出均有显示，屏幕显示为运行。但接触器就是不动作。</span> </p> <p id='0fec9d' style="white-space:normal;box-sizing:content-box;margin-top:0px;margin-bottom:10px;padding:0px;text-indent:2em;font-size:14px;line-height:2em;overflow:hidden;width:752.5px;color:#666666;font-family:宋体, "background-color:#FFFFFF;"> <span id='26fe9a' style="box-sizing:content-box;font-size:16px;">故障原因分析：通过观察孔可以看到，按下按钮，PLC输入和输出均有动作显示，说明CPU内部电路正常，问题出在PLC带转载机的输出继电器接点上。因为此系统浸过水，怀疑是带转载机继电器输出接点间受潮碳化引起的。</span> </p> <p id='0195e8' style="white-space:normal;box-sizing:content-box;margin-top:0px;margin-bottom:10px;padding:0px;text-indent:2em;font-size:14px;line-height:2em;overflow:hidden;width:752.5px;color:#666666;font-family:宋体, "background-color:#FFFFFF;"> <span id='b3c8e5' style="box-sizing:content-box;font-size:16px;">处理过程：. 好的办法是更换备用的新PLC（价格贵，且现场没有），只好现场修理PLC，拆除CPU线路板，经现场检查，此继电器为密封继电器，体积比较小，且线路板是多层的，如采取电烙铁将损坏继电器烫下，可能会损坏其它元件，故采取借路的方法进行处理，将相邻的一个空闲输出继电器的控制端和这个损坏的输出继电器的控制端并联在一起，也就是让这两个输出电路一起动作，并将原来转载机控制线改在这个新输出继电器的输出端子上，即输入接在I.2上，而输出不能接在Q.2上，则要接在Q.3上，确认处理完毕后，上电试机，油泵、转载机、截割头电机开、停一切正常，故障彻底排除。</span> </p> <p id='534edf' style="white-space:normal;box-sizing:content-box;margin-top:0px;margin-bottom:10px;padding:0px;text-indent:2em;font-size:14px;line-height:2em;overflow:hidden;width:752.5px;color:#666666;font-family:宋体, "background-color:#FFFFFF;"> <span id='f0d553' style="box-sizing:content-box;font-size:16px;font-family:arial, helvetica, sans-serif;"><span id='7b4351' 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