選(xuan)擇(ze)PILZ皮(pi)爾茲繼電(dian)器(qi)的(de)四(si)個(gè)(ge)方(fang)法(fa)
1.PILZ皮(pi)爾茲繼電(dian)器(qi)按(an)使用環(huán)境選(xuan)型(xing)
使(shi)用環(huán)境條件(jian)主要(yao)指(zhi)溫(wen)度(du)（大與(yu)小）、濕度(du)（壹(yi)般指(zhi)40℃下(xia)的(de)大相(xiang)對(duì)濕度(du)）、低氣(qi)壓（使(shi)用高度(du)1000米以(yi)下可(ke)不考慮(lv)）、振(zhen)動(dòng)(dong)和(he)沖擊(ji)。此外(wai)，尚有(you)封(feng)裝(zhuang)方(fang)式(shi)、安(an)裝(zhuang)方(fang)法(fa)、外形(xing)尺寸(cun)及(ji)絕(jue)緣(yuan)性(xing)等要(yao)求。由於(yu)材(cai)料和(he)結(jié)(jie)構(gòu)(gou)不同，德(de)國(guó)(guo)PILZ繼電(dian)器(qi)承(cheng)受的環(huán)境(jing)力學(xué)(xue)條(tiao)件(jian)各(ge)異(yi)，超(chao)過產(chǎn)品(pin)標(biāo)準(zhǔn)規(guī)定(ding)的環(huán)(huan)境(jing)力學(xué)(xue)條(tiao)件(jian)下(xia)使(shi)用，有可能損壞(huai)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)，可(ke)按整機(jī)(ji)的環(huán)(huan)境(jing)力學(xué)(xue)條(tiao)件(jian)或(huo)高壹級(jí)(ji)的(de)條件(jian)選(xuan)用。
對(duì)電(dian)磁(ci)幹(gan)擾(rao)或(huo)射(she)頻(pin)幹(gan)擾(rao)比(bi)較敏(min)感(gan)的(de)裝(zhuang)置(zhi)周圍(wei)，不要(yao)選(xuan)用交(jiao)流電(dian)激(ji)勵(lì)(li)的(de)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)。選(xuan)用直流德(de)國(guó)(guo)PILZ繼電(dian)器(qi)要(yao)選(xuan)用帶線圈(quan)瞬態(tài)(tai)抑制(zhi)電(dian)路(lu)的(de)產(chǎn)(chan)品。那(na)些用固(gu)態(tài)(tai)器(qi)件(jian)或(huo)電(dian)路(lu)提供激勵(lì)(li)及(ji)對(duì)尖(jian)峰信(xin)號(hào)比(bi)較敏(min)感(gan)地(di)地(di)方(fang)，也(ye)要(yao)選(xuan)擇(ze)有(you)瞬(shun)態(tài)(tai)抑(yi)制(zhi)電(dian)路(lu)的(de)產(chǎn)(chan)品。
2.PILZ皮(pi)爾茲繼電(dian)器(qi)按(an)輸(shu)入信(xin)號(hào)不同確(que)定(ding)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)種(zhong)類
按輸(shu)入信(xin)號(hào)是(shi)電(dian)、溫(wen)度(du)、時(shí)間、光(guang)信(xin)號(hào)確(que)定(ding)選(xuan)用電(dian)磁(ci)、溫(wen)度(du)、時(shí)間、光(guang)電(dian)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)，這(zhe)是(shi)沒有(you)問題的(de)。這裏(li)特(te)別(bie)說明電(dian)壓、電(dian)流德(de)國(guó)(guo)PILZ繼電(dian)器(qi)的(de)選(xuan)用。若整(zheng)機(jī)(ji)供給線圈(quan)是(shi)恒(heng)定(ding)的(de)電(dian)流應(yīng)(ying)選(xuan)用電(dian)流德(de)國(guó)(guo)PILZ皮(pi)爾茲繼電(dian)器(qi)，是(shi)恒(heng)定(ding)電(dian)壓值(zhi)則選(xuan)用電(dian)壓德(de)國(guó)(guo)PILZ繼電(dian)器(qi)。
選(xuan)擇(ze)德(de)國(guó)(guo)PILZ皮(pi)爾茲繼電(dian)器(qi)的(de)幾大好(hao)處
3.PILZ皮(pi)爾茲繼電(dian)器(qi)輸(shu)入?yún)?can)量(liang)的選(xuan)定(ding)
與(yu)用戶(hu)密(mi)切相(xiang)關(guān)(guan)的(de)輸(shu)入量(liang)是(shi)線圈(quan)工(gong)作(zuo)電(dian)壓（或(huo)電(dian)流），而吸合(he)電(dian)壓（或(huo)電(dian)流）則是(shi)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)制(zhi)造(zao)廠控制(zhi)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)靈敏(min)度(du)並對(duì)其(qi)進(jìn)(jin)行(xing)判(pan)斷(duan)、考核(he)的(de)參(can)數(shù)。對(duì)用戶(hu)來(lai)講，它(ta)只(zhi)是(shi)壹(yi)個(gè)(ge)工(gong)作(zuo)下(xia)極限參(can)數(shù)值(zhi)。控(kong)制(zhi)安(an)全(quan)系數(shù)(shu)是(shi)工(gong)作(zuo)電(dian)壓（電(dian)流）/吸合(he)電(dian)壓（電(dian)流），如果(guo)在吸(xi)合(he)值(zhi)下(xia)使用德(de)國(guó)(guo)PILZ繼電(dian)器(qi)，是(shi)不可靠的、不安(an)全(quan)的(de)，環(huán)(huan)境溫度(du)升(sheng)高或(huo)處於(yu)振(zhen)動(dòng)(dong)、沖擊(ji)條件(jian)下(xia)，將(jiang)使(shi)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)工(gong)作(zuo)不可靠。整機(jī)(ji)設(shè)計(jì)(ji)時(shí)，不能以(yi)空載(zai)電(dian)壓作(zuo)為德(de)國(guó)(guo)PILZ繼電(dian)器(qi)工(gong)作(zuo)電(dian)壓依據(jù)，而(er)應(yīng)(ying)將(jiang)線圈(quan)接入(ru)作(zuo)為負(fù)(fu)載(zai)來(lai)計(jì)(ji)算(suan)實(shí)(shi)際(ji)電(dian)壓，特(te)別是(shi)電(dian)源(yuan)內(nèi)(nei)阻(zu)大時(shí)更是(shi)如(ru)此(ci)。當(dāng)用三極管作(zuo)為開(kai)關(guān)(guan)元件(jian)控(kong)制(zhi)線圈(quan)通斷(duan)時(shí)，三極管必須(xu)處於(yu)開(kai)關(guān)(guan)狀態(tài)(tai)，對(duì)6VDC以(yi)下工(gong)作(zuo)電(dian)壓的(de)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)來(lai)講，還(hai)應(yīng)(ying)扣(kou)除(chu)三極管飽(bao)和(he)壓降(jiang)。當(dāng)然，並非(fei)工(gong)作(zuo)值(zhi)加(jia)得(de)愈(yu)高愈好(hao)，超(chao)過額定工(gong)作(zuo)值(zhi)太(tai)高會(huì)(hui)增加(jia)銜(xian)鐵(tie)的(de)沖擊(ji)磨(mo)損，增加(jia)觸(chu)點(diǎn)(dian)回(hui)跳次數(shù)(shu)，縮(suo)短(duan)電(dian)氣(qi)壽(shou)命(ming)，壹般，工(gong)作(zuo)值(zhi)為吸合(he)值(zhi)的(de)1.5倍，工(gong)作(zuo)值(zhi)的(de)誤(wu)差壹(yi)般為±10%。
4.PILZ皮(pi)爾茲繼電(dian)器(qi)根(gen)據(jù)負(fù)(fu)載(zai)情況選(xuan)擇(ze)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)觸(chu)點(diǎn)(dian)的(de)種(zhong)類和容量(liang)
國(guó)(guo)內(nèi)(nei)外長(zhǎng)(chang)期(qi)實(shí)(shi)踐證(zheng)明(ming)，約(yue)70%的故障(zhang)發(fā)(fa)生(sheng)在觸點(diǎn)(dian)上(shang)，這(zhe)足見正(zheng)確(que)選(xuan)擇(ze)和(he)使(shi)用德(de)國(guó)(guo)PILZ繼電(dian)器(qi)觸(chu)點(diǎn)(dian)非(fei)常(chang)重(zhong)要(yao)。
觸點(diǎn)(dian)組(zu)合(he)形(xing)式(shi)和觸(chu)點(diǎn)(dian)組(zu)數(shù)(shu)應(yīng)(ying)根(gen)據(jù)被控回(hui)路實(shí)(shi)際(ji)情況確(que)定(ding)。常(chang)用的觸點(diǎn)(dian)組(zu)合(he)形(xing)式(shi)見表(biao)6。動(dòng)(dong)合(he)觸(chu)點(diǎn)(dian)組(zu)和(he)轉(zhuǎn)(zhuan)換(huan)觸點(diǎn)(dian)組(zu)中的(de)動(dòng)(dong)合(he)觸(chu)點(diǎn)(dian)對(duì)，由(you)於(yu)接通時(shí)觸點(diǎn)(dian)回(hui)跳次數(shù)(shu)少和(he)觸(chu)點(diǎn)(dian)燒(shao)蝕後(hou)補(bǔ)償量(liang)大，其(qi)負(fù)(fu)載(zai)能力和(he)接(jie)觸(chu)可靠性較動(dòng)(dong)斷觸(chu)點(diǎn)(dian)組(zu)和(he)轉(zhuǎn)(zhuan)換(huan)觸點(diǎn)(dian)組(zu)中的(de)動(dòng)(dong)斷(duan)觸點(diǎn)(dian)對(duì)要(yao)高，整機(jī)(ji)線路可通過(guo)對(duì)觸(chu)點(diǎn)(dian)位(wei)置(zhi)適(shi)當(dāng)調(diào)(tiao)整，盡(jin)量(liang)多用動(dòng)合(he)觸(chu)點(diǎn)(dian)。
根(gen)據(jù)(ju)負(fù)(fu)載(zai)容量(liang)大小和負(fù)(fu)載(zai)性(xing)質(zhì)(zhi)（阻(zu)性(xing)、感(gan)性(xing)、容性、燈(deng)載(zai)及(ji)馬達(dá)負(fù)(fu)載(zai)）確(que)定(ding)參(can)數(shù)十(shi)分(fen)重(zhong)要(yao)。認(rèn)為觸點(diǎn)(dian)切換(huan)負(fù)(fu)荷(he)小壹定比切換(huan)負(fù)(fu)荷(he)大可(ke)靠是(shi)不正確(que)的(de)，壹(yi)般說，德(de)國(guó)(guo)PILZ繼電(dian)器(qi)切換(huan)負(fù)(fu)荷(he)在(zai)額定電(dian)壓下(xia)，電(dian)流大於(yu)100mA、小於(yu)額定電(dian)流的75%。電(dian)流小於(yu)100mA會(huì)(hui)使觸點(diǎn)(dian)積碳(tan)增(zeng)加(jia)，可(ke)靠性下(xia)降，故(gu)100mA稱作(zuo)試(shi)驗(yàn)(yan)電(dian)流，是(shi)國(guó)(guo)內(nèi)(nei)外專業(yè)標(biāo)準(zhǔn)對(duì)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)生(sheng)產(chǎn)廠工(gong)藝條件(jian)和(he)水(shui)平(ping)的考核(he)內(nèi)(nei)容。由於(yu)壹般德(de)國(guó)(guo)PILZ繼電(dian)器(qi)不具備(bei)低電(dian)平(ping)切換(huan)能力，用於(yu)切換(huan)50mV、50μA以(yi)下負(fù)(fu)荷(he)的(de)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)訂(ding)貨(huo)，用戶(hu)需註(zhu)明，必要(yao)時(shí)應(yīng)(ying)請(qǐng)(qing)德(de)國(guó)(guo)PILZ繼電(dian)器(qi)生(sheng)產(chǎn)廠協(xié)助選(xuan)型(xing)。
選(xuan)擇(ze)德(de)國(guó)(guo)PILZ皮(pi)爾茲繼電(dian)器(qi)的(de)幾大好(hao)處
德(de)國(guó)(guo)PILZ繼電(dian)器(qi)的(de)觸點(diǎn)(dian)額定負(fù)(fu)載(zai)與(yu)壽(shou)命(ming)是(shi)指(zhi)在(zai)額定電(dian)壓、電(dian)流下，負(fù)(fu)載(zai)為阻性(xing)的動(dòng)(dong)作(zuo)次數(shù)(shu)，當(dāng)超(chao)出額定電(dian)壓時(shí)，可參(can)照觸點(diǎn)(dian)負(fù)(fu)載(zai)曲(qu)線選(xuan)用。當(dāng)負(fù)(fu)載(zai)性(xing)質(zhì)(zhi)改(gai)變(bian)時(shí)，其(qi)觸點(diǎn)(dian)負(fù)(fu)載(zai)能力將(jiang)發(fā)(fa)生變(bian)用，用戶(hu)可(ke)參(can)照表8變(bian)換觸(chu)點(diǎn)(dian)負(fù)(fu)載(zai)電(dian)流。
我們的供貨(huo)品種包(bao)括(kuo)液(ye)壓蓄(xu)能器(qi)、流體過濾器(qi)、過(guo)程過濾器(qi)、冷卻器(qi)、電(dian)動(dòng)(dong)液(ye)壓控(kong)制(zhi)器(qi)/工(gong)業(yè)(ye)閥門(men)、壓力傳(chuan)感(gan)裝(zhuang)置(zhi)、行(xing)程(cheng)測(cè)量(liang)技術(shù)和電(dian)磁(ci)技(ji)術(shù)、液壓缸(gang)、泵、固(gu)定(ding)技術(shù)、配件(jian)、環(huán)(huan)境(jing)監(jiān)(jian)控(kong)等等。
上壹(yi)篇(pian) 講解(jie)皮(pi)爾茲PILZ安(an)全(quan)拉(la)繩(sheng)開(kai)關(guān)(guan)安(an)裝(zhuang) 下(xia)壹(yi)篇(pian) 德(de)國(guó)(guo)皮(pi)爾茲PILZ安(an)全(quan)繼電(dian)器(qi)三點(diǎn)(dian)電(dian)路(lu)要(yao)求
|
|
|
|
|
 |
