海南省批發(fā)shinhwa繼電器SAP-2105DS,韓國(guó)Sinwoo S-CON變送器。中山立訊電氣有限公司,中山朗立電氣有限公司
DA-01-1-A1-W DA-01-1-A1-X DA-01-1-A1-Y DA-01-1-A1-Z
DA-01-2-A1-W DA-01-2-A1-X DA-01-2-A1-Y DA-01-2-A1-Z
DA-01-1-B1-W DA-01-1-B1-X DA-01-1-B1-Y DA-01-1-B1-Z
DA-01-2-B1-W DA-01-2-B1-X DA-01-2-B1-Y DA-01-2-B1-Z
DA-01-1-R1-W DA-01-1-R1-X DA-01-1-R1-Y DA-01-1-R1-Z
DA-01-2-R1-W DA-01-2-R1-X DA-01-2-R1-Y DA-01-2-R1-Z
DA-01-1-A2-W DA-01-1-A2-X DA-01-1-A2-Y DA-01-1-A2-Z
DA-01-2-A2-W DA-01-2-A2-X DA-01-2-A2-Y DA-01-2-A2-Z
DA-01-1-B2-W DA-01-1-B2-X DA-01-1-B2-Y DA-01-1-B2-Z
DA-01-2-B2-W DA-01-2-B2-X DA-01-2-B2-Y DA-01-2-B2-Z
DA-01-1-R2-W DA-01-1-R2-X DA-01-1-R2-Y DA-01-1-R2-Z
DA-01-2-R2-W DA-01-2-R2-X DA-01-2-R2-Y DA-01-2-R2-Z

在直流回路過壓跳閘后將斬波器和制動(dòng)電阻投入，結(jié)果跳閘更加頻繁。變頻器操作手冊(cè)上對(duì)直流回路過壓原因的解釋通常有2點(diǎn):a)進(jìn)線電壓過高;b)減速時(shí)間太短;因該變頻器已投入運(yùn)行2個(gè)月，且跳閘時(shí)進(jìn)線電壓在允許的范圍之內(nèi)，其它變頻器工作正常，結(jié)合以前處理變頻器故障時(shí)對(duì)直流回路過壓的認(rèn)識(shí)，認(rèn)為在使用電壓控制器調(diào)節(jié)回饋電流防止直流回路過壓的情況下，負(fù)載電流的變化率過大是引起過壓的一個(gè)重要原因，到現(xiàn)場(chǎng)查看被控設(shè)備時(shí)，發(fā)現(xiàn)有一塊物料卡在傳送帶的間隙中，清除后，變頻器工作正常。拆開變頻器外殼檢查，發(fā)現(xiàn)制動(dòng)斬波器上設(shè)有三檔進(jìn)線電壓選擇裝置(400V、500V、690V)以適應(yīng)不同的進(jìn)線電壓，其中短接環(huán)插在690V檔上。
海南省批發(fā)shinhwa繼電器SAP-2105DS,
DA-01-1-A3-W DA-01-1-A3-X DA-01-1-A3-Y DA-01-1-A3-Z
DA-01-2-A3-W DA-01-2-A3-X DA-01-2-A3-Y DA-01-2-A3-Z
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DA-01-2-B3-W DA-01-2-B3-X DA-01-2-B3-Y DA-01-2-B3-Z
DA-01-1-R3-W DA-01-1-R3-X DA-01-1-R3-Y DA-01-1-R3-Z
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DA-01-1-A4-W DA-01-1-A4-X DA-01-1-A4-Y DA-01-1-A4-Z
DA-01-2-A4-W DA-01-2-A4-X DA-01-2-A4-Y DA-01-2-A4-Z
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DA-01-2-B4-W DA-01-2-B4-X DA-01-2-B4-Y DA-01-2-B4-Z
DA-01-1-R4-W DA-01-1-R4-X DA-01-1-R4-Y DA-01-1-R4-Z
DA-01-2-R4-W DA-01-2-R4-X DA-01-2-R4-Y DA-01-2-R4-Z

也便于維護(hù)。同時(shí)具有外控功能，可根據(jù)使用情況進(jìn)行連接，方便控制。電動(dòng)機(jī)軟啟動(dòng)器對(duì)電動(dòng)機(jī)提供平滑漸進(jìn)的啟動(dòng)過程，減少啟動(dòng)電流對(duì)電網(wǎng)或發(fā)電設(shè)備的沖擊，將啟動(dòng)電流控制在范圍內(nèi)，改善了原控制系統(tǒng)因啟動(dòng)電流較大沖擊廠用電源而影響其它設(shè)備正常運(yùn)行的狀況。啟動(dòng)過程采用雙向可控硅，啟動(dòng)過程完成后，接觸器短接可控硅的控制方式，避免了用接觸器直接控制電動(dòng)機(jī)使觸點(diǎn)易拉弧、粘連、燒壞等故障的發(fā)生CONTROLENGINEERINGChina版權(quán)所有，同時(shí)也節(jié)約了能源。軟啟動(dòng)、軟停車方式，降低設(shè)備的振動(dòng)和噪聲，減少機(jī)械應(yīng)力，延長(zhǎng)發(fā)電設(shè)備及機(jī)械傳動(dòng)系統(tǒng)地使用壽命。具有過流、過載、電源缺相等多種保護(hù)功能，同時(shí)可以檢測(cè)到負(fù)載所涉及（如空壓機(jī)）系統(tǒng)各種不良運(yùn)行情況。
海南省批發(fā)shinhwa繼電器SAP-2105DS,
DA-01-1-A5-W DA-01-1-A5-X DA-01-1-A5-Y DA-01-1-A5-Z
DA-01-2-A5-W DA-01-2-A5-X DA-01-2-A5-Y DA-01-2-A5-Z
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DA-01-2-R5-W DA-01-2-R5-X DA-01-2-R5-Y DA-01-2-R5-Z
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DA-01-2-A6-W DA-01-2-A6-X DA-01-2-A6-Y DA-01-2-A6-Z
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DA-01-2-B7-W DA-01-2-B7-X DA-01-2-B7-Y DA-01-2-B7-Z
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DA-01-2-R7-W DA-01-2-R7-X DA-01-2-R7-Y DA-01-2-R7-Z
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DA-01-2-A8-W DA-01-2-A8-X DA-01-2-A8-Y DA-01-2-A8-Z
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DFC-2A1-W DFC-2A1-X DFC-2A1-Y DFC-2A1-Z DFC-2B1-W DFC-2B1-X DFC-2B1-Y DFC-2B1-Z
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在輕載時(shí)降低電壓，使激磁電流降低，使COS∮提高）。節(jié)能運(yùn)行模式：輕載時(shí)降低電壓減少了激磁電流，電機(jī)電流分為有功分量和無功分量（激磁分量）提高COS∮。運(yùn)行模式當(dāng)電動(dòng)機(jī)負(fù)載輕時(shí)，軟啟動(dòng)器在選擇節(jié)能功能的狀態(tài)下，PF開關(guān)熱撥至Y位，在電流反饋的作用下，軟啟動(dòng)器自動(dòng)降低電動(dòng)機(jī)電壓。減少了電動(dòng)機(jī)電流的勵(lì)磁分量。從而提高了電動(dòng)機(jī)的功率因數(shù)（COS∮）。（國(guó)產(chǎn)軟啟動(dòng)器多無此功能）在接觸器旁路狀態(tài)下無法實(shí)現(xiàn)此功能。TPF開關(guān)提供了節(jié)能功能的兩種反應(yīng)時(shí)間；正常、慢速。節(jié)能運(yùn)行模式：自動(dòng)節(jié)能運(yùn)行。（正常、慢速兩種反應(yīng)速度）空載節(jié)能40%，負(fù)載節(jié)能5%。控制原理軟啟動(dòng)器是通過控制可控硅的導(dǎo)通角來控制輸出電壓。因此。
海南省批發(fā)shinhwa繼電器SAP-2105DS,
DFC-2F4-W DFC-2F4-X DFC-2F4-Y DFC-2F4-Z DFC-2R4-W DFC-2R4-X DFC-2R4-Y DFC-2R4-Z
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即上電試機(jī)。在上電前后必須注意以下幾點(diǎn)：上電之前，須確認(rèn)輸入電壓是否有誤，將380V電源接入220V級(jí)變頻器之中會(huì)出現(xiàn)炸機(jī)（炸電容、壓敏電阻、模塊等）；檢查變頻器各接插口是否已正確連接，連接是否有松動(dòng)，連接異常有時(shí)可能會(huì)導(dǎo)致變頻器出現(xiàn)故障，嚴(yán)重時(shí)會(huì)出炸機(jī)等情況；上電后檢測(cè)故障顯示內(nèi)容，并初步斷定故障及原因；如未顯示故障，首先檢查參數(shù)是否有異常，并將參數(shù)復(fù)歸后，在空載（不接電機(jī)）情況下啟動(dòng)變頻器，并測(cè)試U、V、W三相輸出電壓值。如出現(xiàn)缺相、三相不平衡等情況，則模塊或驅(qū)動(dòng)板等有故障；在輸出電壓正常（無缺相、三相平衡）的情況下，負(fù)載測(cè)試，盡量是滿負(fù)載測(cè)試。[1]故障判斷整流模塊損壞通常是由于電網(wǎng)電壓或內(nèi)部短路引起。
海南省批發(fā)shinhwa繼電器SAP-2105DS,
DFC-4A4-W DFC-4A4-X DFC-4A4-Y DFC-4A4-Z DFC-4B4-W DFC-4B4-X DFC-4B4-Y DFC-4B4-Z
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DIV-2D1-W DIV-2D1-X DIV-2D1-Y DIV-2D1-Z DIV-2D2-W DIV-2D2-X DIV-2D2-Y DIV-2D2-Z
DIV-2D3-W DIV-2D3-X DIV-2D3-Y DIV-2D3-Z DIV-2D4-W DIV-2D4-X DIV-2D4-Y DIV-2D4-Z

控制極G通過按鈕開關(guān)SB接在1.5V直流電源的正極（這里使用的是KP1型晶閘管，若采用KP5型，應(yīng)接在3V直流電源的正極）。晶閘管與電源的這種連接方式叫做正向連接，也就是說，給晶閘管陽(yáng)極和控制極所加的都是正向電壓。合上電源開關(guān)S，小燈泡不亮，說明晶閘管沒有導(dǎo)通；再按一下按鈕開關(guān)SB，給控制極輸入一個(gè)觸發(fā)電壓，小燈泡亮了，說明晶閘管導(dǎo)通了。這個(gè)演示實(shí)驗(yàn)給了我們什么啟發(fā)呢?這個(gè)實(shí)驗(yàn)告訴我們，要使晶閘管導(dǎo)通，一是在它的陽(yáng)極A與陰極K之間外加正向電壓，二是在它的控制極G與陰極K之間輸入一個(gè)正向觸發(fā)電壓。晶閘管導(dǎo)通后，松開按鈕開關(guān)，去掉觸發(fā)電壓，仍然維持導(dǎo)通狀態(tài)。晶閘管特點(diǎn)“一觸即發(fā)”。但是，如果陽(yáng)極或控制極外加的是反向電壓。
海南省批發(fā)shinhwa繼電器SAP-2105DS,
DIV-2D5-W DIV-2D5-X DIV-2D5-Y DIV-2D5-Z DIV-2D6-W DIV-2D6-X DIV-2D6-Y DIV-2D6-Z
DIV-2D7-W DIV-2D7-X DIV-2D7-Y DIV-2D7-Z DIV-2D8-W DIV-2D8-X DIV-2D8-Y DIV-2D8-Z
DIV-2DR-W DIV-2DR-X DIV-2DR-Y DIV-2DR-Z DIV-2DN-W DIV-2DN-X DIV-2DN-Y DIV-2DN-Z
DIV-2E1-W DIV-2E1-X DIV-2E1-Y DIV-2E1-Z DIV-2E2-W DIV-2E2-X DIV-2E2-Y DIV-2E2-Z
DIV-2E3-W DIV-2E3-X DIV-2E3-Y DIV-2E3-Z DIV-2E4-W DIV-2E4-X DIV-2E4-Y DIV-2E4-Z
DIV-2E5-W DIV-2E5-X DIV-2E5-Y DIV-2E5-Z DIV-2E6-W DIV-2E6-X DIV-2E6-Y DIV-2E6-Z
DIV-2E7-W DIV-2E7-X DIV-2E7-Y DIV-2E7-Z DIV-2E8-W DIV-2E8-X DIV-2E8-Y DIV-2E8-Z
DIV-2ER-W DIV-2ER-X DIV-2ER-Y DIV-2ER-Z DIV-2EN-W DIV-2EN-X DIV-2EN-Y DIV-2EN-Z
DIV-2F1-W DIV-2F1-X DIV-2F1-Y DIV-2F1-Z DIV-2F2-W DIV-2F2-X DIV-2F2-Y DIV-2F2-Z
DIV-2F3-W DIV-2F3-X DIV-2F3-Y DIV-2F3-Z DIV-2F4-W DIV-2F4-X DIV-2F4-Y DIV-2F4-Z
DIV-2F5-W DIV-2F5-X DIV-2F5-Y DIV-2F5-Z DIV-2F6-W DIV-2F6-X DIV-2F6-Y DIV-2F6-Z
DIV-2F7-W DIV-2F7-X DIV-2F7-Y DIV-2F7-Z DIV-2F8-W DIV-2F8-X DIV-2F8-Y DIV-2F8-Z
DIV-2FR-W DIV-2FR-X DIV-2FR-Y DIV-2FR-Z DIV-2FN-W DIV-2FN-X DIV-2FN-Y DIV-2FN-Z
DIV-2G1-W DIV-2G1-X DIV-2G1-Y DIV-2G1-Z DIV-2G2-W DIV-2G2-X DIV-2G2-Y DIV-2G2-Z
DIV-2G3-W DIV-2G3-X DIV-2G3-Y DIV-2G3-Z DIV-2G4-W DIV-2G4-X DIV-2G4-Y DIV-2G4-Z
DIV-2G5-W DIV-2G5-X DIV-2G5-Y DIV-2G5-Z
DIV-2G6-W DIV-2G6-X DIV-2G6-Y DIV-2G6-Z
DIV-2G7-W DIV-2G7-X DIV-2G7-Y DIV-2G7-Z
DIV-2G8-W DIV-2G8-X DIV-2G8-Y DIV-2G8-Z
DIV-2GR-W DIV-2GR-X DIV-2GR-Y DIV-2GR-Z
DIV-2GN-W DIV-2GN-X DIV-2GN-Y DIV-2GN-Z
DIV-2H1-W DIV-2H1-X DIV-2H1-Y DIV-2H1-Z
DIV-2H2-W DIV-2H2-X DIV-2H2-Y DIV-2H2-Z
DIV-2H3-W DIV-2H3-X DIV-2H3-Y DIV-2H3-Z
DIV-2H4-W DIV-2H4-X DIV-2H4-Y DIV-2H4-Z
DIV-2H5-W DIV-2H5-X DIV-2H5-Y DIV-2H5-Z
DIV-2H6-W DIV-2H6-X DIV-2H6-Y DIV-2H6-Z
DIV-2H7-W DIV-2H7-X DIV-2H7-Y DIV-2H7-Z
DIV-2H8-W DIV-2H8-X DIV-2H8-Y DIV-2H8-Z
DIV-2HR-W DIV-2HR-X DIV-2HR-Y DIV-2HR-Z
DIV-2HN-W DIV-2HN-X DIV-2HN-Y DIV-2HN-Z

1.比較器檢測(cè)通過穩(wěn)壓管固定比較器一端的電壓，被檢測(cè)的電壓取樣后再與之比較，結(jié)果通過比較器輸出。2.ADC檢測(cè)(模擬/數(shù)字轉(zhuǎn)換器)被檢測(cè)的電壓通過電阻降壓取樣后，落在ADC可檢測(cè)的范圍，可以通過程序設(shè)定電壓的報(bào)警范圍。主電路中的儲(chǔ)能電容，對(duì)運(yùn)行中變頻器過壓、欠壓影響很大。而變頻器電路的各種零部件又有一定使用壽命的，所以一旦變頻器零部件達(dá)到使用壽命就會(huì)帶來故障的發(fā)生。像主電路中的儲(chǔ)能電容或其它零部件的原因都有可能對(duì)主電路造成影響，從而使整個(gè)變頻器發(fā)生故障。通常變頻器停用時(shí)間過長(zhǎng)，達(dá)到一年以上，則應(yīng)對(duì)儲(chǔ)能電容要做一次體檢。對(duì)長(zhǎng)時(shí)間不用的變頻器，如何來避免這種現(xiàn)象發(fā)生呢?按照要求，停用的變頻器應(yīng)每隔兩三個(gè)月通電—次。
海南省批發(fā)shinhwa繼電器SAP-2105DS,