本期(qi)小(xiao)编盘(pan)点(dian)一些关(guan)于变(bian)频(pin)(pin)器(qi)常见故(gu)障以及排(pai)除(chu)方法如下：1、变(bian)频(pin)(pin)器(qi)无(wu)(wu)输(shu)出(chu)电(dian)(dian)(dian)压(ya)。故(gu)障原(yuan)因为：A、主(zhu)回(hui)路(lu)不(bu)通(tong)。重点(dian)检查主(zhu)回(hui)路(lu)通(tong)道中所有(you)(you)开关(guan)、熔断(duan)(duan)(duan)器(qi)、接(jie)触(chu)(chu)(chu)器(qi)及电(dian)(dian)(dian)力电(dian)(dian)(dian)子元件是(shi)(shi)否(fou)完好，导(dao)线接(jie)头(tou)有(you)(you)无(wu)(wu)接(jie)触(chu)(chu)(chu)不(bu)良或松脱。B、控制(zhi)回(hui)路(lu)接(jie)线错误，变(bian)频(pin)(pin)器(qi)未正常启动(dong)(dong)。以说明书为依据，认真核对控制(zhi)回(hui)路(lu)接(jie)线，找(zhao)出(chu)错误并(bing)加(jia)以纠正。2、电(dian)(dian)(dian)动(dong)(dong)机不(bu)能升速。主(zhu)要原(yuan)因：A、交流电(dian)(dian)(dian)源或变(bian)频(pin)(pin)器(qi)输(shu)出(chu)缺(que)相(xiang)(xiang)。电(dian)(dian)(dian)源缺(que)相(xiang)(xiang)使(shi)变(bian)频(pin)(pin)器(qi)输(shu)出(chu)电(dian)(dian)(dian)压(ya)降(jiang)低(di)，变(bian)频(pin)(pin)器(qi)输(shu)出(chu)缺(que)相(xiang)(xiang)造(zao)成三相(xiang)(xiang)电(dian)(dian)(dian)压(ya)不(bu)对称而产生(sheng)(sheng)负序(xu)转(zhuan)矩(ju)，都使(shi)电(dian)(dian)(dian)动(dong)(dong)机电(dian)(dian)(dian)磁转(zhuan)矩(ju)变(bian)小(xiao)，不(bu)能驱动(dong)(dong)负载加(jia)速。应(ying)(ying)检查熔丝(si)有(you)(you)无(wu)(wu)熔断(duan)(duan)(duan)，导(dao)线接(jie)头(tou)有(you)(you)无(wu)(wu)松脱断(duan)(duan)(duan)路(lu)，逆变(bian)桥开关(guan)管是(shi)(shi)否(fou)损坏和有(you)(you)无(wu)(wu)触(chu)(chu)(chu)发脉冲等(deng)。B、频(pin)(pin)率(lv)或电(dian)(dian)(dian)流设(she)定(ding)值偏小(xiao)。频(pin)(pin)率(lv)设(she)定(ding)在(zai)低(di)值点(dian)上使(shi)频(pin)(pin)率(lv)受(shou)到限(xian)制(zhi)无(wu)(wu)法升高而不(bu)能加(jia)速。电(dian)(dian)(dian)流值设(she)定(ding)偏小(xiao)，则(ze)产生(sheng)(sheng)较(jiao)(jiao)大(da)转(zhuan)矩(ju)的能力被限(xian)制(zhi)，使(shi)电(dian)(dian)(dian)动(dong)(dong)机剩余转(zhuan)矩(ju)过小(xiao)而不(bu)能加(jia)速。因此(ci)，应(ying)(ying)检查频(pin)(pin)率(lv)和电(dian)(dian)(dian)流设(she)定(ding)值是(shi)(shi)否(fou)适当。看电(dian)(dian)(dian)流设(she)定(ding)值已达到变(bian)频(pin)(pin)器(qi)的较(jiao)(jiao)大(da)值，则(ze)说明变(bian)频(pin)(pin)器(qi)容量(liang)偏小(xiao)，应(ying)(ying)换较(jiao)(jiao)大(da)容量(liang)的变(bian)频(pin)(pin)器(qi)。C、调速电(dian)(dian)(dian)位器(qi)接(jie)触(chu)(chu)(chu)不(bu)良或相(xiang)(xiang)关(guan)元件损坏，使(shi)频(pin)(pin)率(lv)给(ji)定(ding)值不(bu)能升高。因此(ci)，电(dian)(dian)(dian)动(dong)(dong)机的热保(bao)护是(shi)(shi)一定(ding)的。台(tai)州(zhou)变(bian)频(pin)(pin)柜

1、节约能(neng)(neng)源(yuan)变频(pin)(pin)器控(kong)(kong)(kong)制电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)与传(chuan)统(tong)控(kong)(kong)(kong)制的(de)(de)(de)(de)(de)电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)比(bi)较，能(neng)(neng)源(yuan)节约是有(you)实际意义的(de)(de)(de)(de)(de)，根据注(zhu)(zhu)水量(liang)(liang)、输(shu)油量(liang)(liang)需求来供给(ji)的(de)(de)(de)(de)(de)电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)工况(kuang)是经济的(de)(de)(de)(de)(de)运(yun)行状，即可节电(dian)(dian)(dian)48.8%2、运(yun)行成(cheng)(cheng)(cheng)(cheng)本(ben)降(jiang)(jiang)低传(chuan)统(tong)电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)运(yun)行成(cheng)(cheng)(cheng)(cheng)本(ben)由三项组(zu)成(cheng)(cheng)(cheng)(cheng)：初始(shi)采购成(cheng)(cheng)(cheng)(cheng)本(ben)、维护成(cheng)(cheng)(cheng)(cheng)本(ben)和能(neng)(neng)源(yuan)成(cheng)(cheng)(cheng)(cheng)本(ben)。其中能(neng)(neng)源(yuan)成(cheng)(cheng)(cheng)(cheng)本(ben)大约占电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)运(yun)行成(cheng)(cheng)(cheng)(cheng)本(ben)的(de)(de)(de)(de)(de)77%。通(tong)过能(neng)(neng)源(yuan)成(cheng)(cheng)(cheng)(cheng)本(ben)降(jiang)(jiang)低44.3%，再加上变频(pin)(pin)起动(dong)后(hou)对设备的(de)(de)(de)(de)(de)冲击减少，维护和维修量(liang)(liang)也跟(gen)随降(jiang)(jiang)低，所(suo)以运(yun)行成(cheng)(cheng)(cheng)(cheng)本(ben)将降(jiang)(jiang)低。3、提(ti)高(gao)(gao)压力控(kong)(kong)(kong)制精度(du)变频(pin)(pin)控(kong)(kong)(kong)制系统(tong)具有(you)精确(que)的(de)(de)(de)(de)(de)压力控(kong)(kong)(kong)制能(neng)(neng)力。使电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)压力输(shu)出与系统(tong)所(suo)需的(de)(de)(de)(de)(de)注(zhu)(zhu)水量(liang)(liang)相匹配。变频(pin)(pin)控(kong)(kong)(kong)制电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)输(shu)出量(liang)(liang)随着电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)转速的(de)(de)(de)(de)(de)改变而改变。由于变频(pin)(pin)控(kong)(kong)(kong)制电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)速度(du)的(de)(de)(de)(de)(de)精度(du)提(ti)高(gao)(gao)，所(suo)以它可以使管网(wang)的(de)(de)(de)(de)(de)系统(tong)压力变化保持(chi)在3pisg变化范(fan)围，也就是0.2bar范(fan)围内(nei)，有(you)效地提(ti)高(gao)(gao)了工况(kuang)的(de)(de)(de)(de)(de)质量(liang)(liang)。马鞍(an)山变频(pin)(pin)柜体空气月平均湿度(du)不大于百(bai)分之九十(平均气温在25℃时(shi))。

1、变(bian)(bian)频(pin)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜(ju).直(zhi)接启动(dong)(dong)(dong)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜(ju)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)机(ji)功率：0.37-15KW；控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)压：380V；控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)水(shui)泵台(tai)(tai)数：1-4台(tai)(tai)。2、变(bian)(bian)频(pin)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜(ju).三角启动(dong)(dong)(dong)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)机(ji)功率：15-90KW；控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)压：380V；控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)水(shui)泵台(tai)(tai)数：1-5台(tai)(tai)。3、变(bian)(bian)频(pin)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜(ju).自(zi)动(dong)(dong)(dong)减压启动(dong)(dong)(dong)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜(ju)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)机(ji)功率：15-160KW；控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)压：380V；控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)水(shui)泵台(tai)(tai)数：1-5台(tai)(tai)。4、变(bian)(bian)频(pin)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜(ju).全自(zi)动(dong)(dong)(dong)变(bian)(bian)频(pin)调速控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜(ju)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)机(ji)功率：0.18-250KW；控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)压：380V；控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)电(dian)(dian)(dian)(dian)(dian)机(ji)台(tai)(tai)数：1-7台(tai)(tai)；压力(li)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)精度:0.02MPa或-0.02MPa。无锡骏(jun)力(li)成套(tao)设(she)备厂为(wei)您服务(wu)

虽然水(shui)(shui)(shui)泵在(zai)低(di)速(su)运行(xing)时(shi)(shi)，电(dian)(dian)(dian)动(dong)(dong)机(ji)的(de)(de)(de)工作(zuo)电(dian)(dian)(dian)流较小。但是(shi)，当用(yong)户的(de)(de)(de)用(yong)水(shui)(shui)(shui)量(liang)变化频(pin)(pin)(pin)(pin)繁时(shi)(shi)，电(dian)(dian)(dian)动(dong)(dong)机(ji)将(jiang)(jiang)处于频(pin)(pin)(pin)(pin)繁的(de)(de)(de)升(sheng)(sheng)、降(jiang)速(su)状态(tai)，而(er)升(sheng)(sheng)、降(jiang)速(su)的(de)(de)(de)电(dian)(dian)(dian)流可略超过电(dian)(dian)(dian)动(dong)(dong)机(ji)的(de)(de)(de)额(e)定电(dian)(dian)(dian)流，导(dao)致电(dian)(dian)(dian)动(dong)(dong)机(ji)过热(re)。因此，电(dian)(dian)(dian)动(dong)(dong)机(ji)的(de)(de)(de)热(re)保(bao)(bao)护(hu)是(shi)一定的(de)(de)(de)。对于这种由于频(pin)(pin)(pin)(pin)繁地升(sheng)(sheng)、降(jiang)速(su)而(er)积累起来的(de)(de)(de)温升(sheng)(sheng)，变频(pin)(pin)(pin)(pin)器内的(de)(de)(de)电(dian)(dian)(dian)子热(re)保(bao)(bao)护(hu)功(gong)能(neng)(neng)是(shi)难以起到保(bao)(bao)护(hu)作(zuo)用(yong)的(de)(de)(de)，所以应(ying)采用(yong)热(re)继电(dian)(dian)(dian)器来进行(xing)电(dian)(dian)(dian)动(dong)(dong)机(ji)的(de)(de)(de)热(re)保(bao)(bao)护(hu)。在(zai)主要(yao)功(gong)能(neng)(neng)预(yu)置方面，变频(pin)(pin)(pin)(pin)控(kong)制(zhi)柜设定频(pin)(pin)(pin)(pin)率(lv)应(ying)以电(dian)(dian)(dian)动(dong)(dong)机(ji)的(de)(de)(de)额(e)定频(pin)(pin)(pin)(pin)率(lv)为(wei)变频(pin)(pin)(pin)(pin)器的(de)(de)(de)工作(zuo)频(pin)(pin)(pin)(pin)率(lv)。升(sheng)(sheng)、降(jiang)速(su)时(shi)(shi)间在(zai)采用(yong)PID调节器的(de)(de)(de)情况下，升(sheng)(sheng)、降(jiang)速(su)时(shi)(shi)间应(ying)尽量(liang)设定得短一些(xie)，以免影(ying)响(xiang)由PID调节器决定的(de)(de)(de)动(dong)(dong)态(tai)响(xiang)应(ying)过程。如变频(pin)(pin)(pin)(pin)器本身具有PID调节功(gong)能(neng)(neng)时(shi)(shi)，只要(yao)在(zai)水(shui)(shui)(shui)泵变频(pin)(pin)(pin)(pin)控(kong)制(zhi)柜预(yu)置时(shi)(shi)设定PID功(gong)能(neng)(neng)有效，则所设定的(de)(de)(de)升(sheng)(sheng)速(su)和降(jiang)速(su)时(shi)(shi)间将(jiang)(jiang)自动(dong)(dong)失效。由于泵的(de)(de)(de)平均(jun)转(zhuan)速(su)降(jiang)低(di)了，从而(er)可延(yan)长泵和阀(fa)门等的(de)(de)(de)使用(yong)寿命;

干(gan)扰(rao)信号(hao)难题   I.变频(pin)(pin)(pin)(pin)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)柜(ju)(ju)(ju)工作中(zhong)因为整流(liu)器和(he)直(zhi)(zhi)流(liu)变频(pin)(pin)(pin)(pin)，周边造成了许多的(de)影响无线(xian)电(dian)(dian)(dian)波，这(zhei)种高(gao)频(pin)(pin)(pin)(pin)率(lv)无线(xian)电(dian)(dian)(dian)波对周边的(de)仪(yi)表盘、仪(yi)器设(she)备(bei)有一定(ding)的(de)影响，并且会造成高(gao)次(ci)谐(xie)波，这(zhei)类高(gao)次(ci)谐(xie)波会根据供电(dian)(dian)(dian)系(xi)统回路进到(dao)(dao)(dao)全部(bu)供电(dian)(dian)(dian)系(xi)统互联网(wang)，进而危害别(bie)的(de)仪(yi)表盘。假如变频(pin)(pin)(pin)(pin)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)柜(ju)(ju)(ju)的(de)输(shu)出功率(lv)非常大占全部(bu)系(xi)统软件(jian)25之上(shang)，须(xu)考虑到(dao)(dao)(dao)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)开关电(dian)(dian)(dian)源(yuan)的(de)抗(kang)干(gan)扰(rao)性对策。   II.当(dang)(dang)系(xi)统软件(jian)中(zhong)有高(gao)频(pin)(pin)(pin)(pin)率(lv)冲击性负荷如直(zhi)(zhi)流(liu)焊机(ji)、电(dian)(dian)(dian)镀电(dian)(dian)(dian)源(yuan)时(shi)(shi)，变频(pin)(pin)(pin)(pin)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)柜(ju)(ju)(ju)自身会由于影响而出現维(wei)护，则(ze)考虑到(dao)(dao)(dao)全部(bu)系(xi)统软件(jian)的(de)开关电(dian)(dian)(dian)源(yuan)产品质量(liang)问题。   三(san)、防护难题须(xu)留意(yi)以下几个方面   I.防潮防冷凝水：假如变频(pin)(pin)(pin)(pin)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)柜(ju)(ju)(ju)放(fang)到(dao)(dao)(dao)当(dang)(dang)场(chang)，须(xu)留意(yi)变频(pin)(pin)(pin)(pin)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)柜(ju)(ju)(ju)柜(ju)(ju)(ju)上(shang)边不(bu)可以有管路法兰盘或(huo)别(bie)的(de)漏(lou)过，在变频(pin)(pin)(pin)(pin)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)柜(ju)(ju)(ju)周边不(bu)可以有飞溅流(liu)水，总而言之当(dang)(dang)场(chang)柜(ju)(ju)(ju)门防水等(deng)级要在IP43之上(shang)。   II.防污(wu)：全部(bu)进气口要设(she)定(ding)盖(gai)土(tu)(tu)网(wang)隔绝絮状物脏物进到(dao)(dao)(dao)，盖(gai)土(tu)(tu)网(wang)应当(dang)(dang)设(she)计方案为拆式式，以便(bian)捷(jie)清(qing)理，维(wei)护保(bao)养。盖(gai)土(tu)(tu)网(wang)的(de)网(wang)格图依据当(dang)(dang)场(chang)的(de)详细情况明确，盖(gai)土(tu)(tu)网(wang)四周与控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)柜(ju)(ju)(ju)的(de)相(xiang)接处(chu)要解(jie)决严实。   III.耐腐蚀气体(ti)：在化(hua)工制(zhi)(zhi)(zhi)(zhi)造行业(ye)这(zhei)类状况比较多见，这(zhei)时(shi)(shi)能够将变频(pin)(pin)(pin)(pin)柜(ju)(ju)(ju)放(fang)到(dao)(dao)(dao)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)室中(zhong)。并可在维(wei)护时(shi)(shi)切断电(dian)(dian)(dian)源(yuan)。南通变频(pin)(pin)(pin)(pin)柜(ju)(ju)(ju)安装

变频器(qi)本身具有PID调节(jie)功能时(shi)，只要在水泵变频控制柜(ju)预(yu)置时(shi)设定(ding)PID功能有效。台州变频柜(ju)

热换(huan)站PLC控制柜在水(shui)处理、恒压供水(shui)、空(kong)压机(ji)(ji)、风机(ji)(ji)泵、中(zhong)央空(kong)调、港(gang)口(kou)机(ji)(ji)械(xie)、机(ji)(ji)床(chuang)、锅炉、造纸机(ji)(ji)械(xie)、食品(pin)机(ji)(ji)械(xie)等行业有着的(de)(de)(de)(de)应用(yong)，那么大家(jia)知(zhi)道该产品(pin)的(de)(de)(de)(de)组(zu)件吗(ma)?对此了解多少呢?是(shi)(shi)(shi)(shi)不(bu)是(shi)(shi)(shi)(shi)不(bu)清楚呢?没关(guan)(guan)系，接下来我们将为大家(jia)总结一下。热换(huan)站PLC控制柜组(zu)件：1.空(kong)气开(kai)(kai)关(guan)(guan)：一般的(de)(de)(de)(de)空(kong)气开(kai)(kai)关(guan)(guan)，是(shi)(shi)(shi)(shi)整(zheng)个(ge)机(ji)(ji)柜的(de)(de)(de)(de)电源(yuan)(yuan)控制。2.PLC:这个(ge)要(yao)根据(ju)项目的(de)(de)(de)(de)需(xu)(xu)(xu)要(yao)来选择(ze)。比如项目小，可(ke)以(yi)直(zhi)接是(shi)(shi)(shi)(shi)一台(tai)集成PLC，但是(shi)(shi)(shi)(shi)项目大，可(ke)能(neng)需(xu)(xu)(xu)要(yao)模块化和卡(ka)式，也可(ke)能(neng)需(xu)(xu)(xu)要(yao)冗余(yu)(就是(shi)(shi)(shi)(shi)两(liang)套PLC交替使用(yong))。3.24伏直(zhi)流电源(yuan)(yuan)：一个(ge)24伏直(zhi)流开(kai)(kai)关(guan)(guan)电源(yuan)(yuan)。大部分PLC都(dou)有自己的(de)(de)(de)(de)24v直(zhi)流电源(yuan)(yuan)，所(suo)以(yi)是(shi)(shi)(shi)(shi)否(fou)使用(yong)这种开(kai)(kai)关(guan)(guan)电源(yuan)(yuan)是(shi)(shi)(shi)(shi)根据(ju)是(shi)(shi)(shi)(shi)否(fou)真的(de)(de)(de)(de)需(xu)(xu)(xu)要(yao)来决(jue)定(ding)的(de)(de)(de)(de)。台(tai)州(zhou)变频柜

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