1746-HSRV、1746-HSRV
1746-HSRV、1746-HSRV
主要抗干擾措施 1、采用性能優(yōu)良的電源,抑制電網(wǎng)引入的干擾 在PLC控制系統(tǒng)中,電源占有極重要的地位。電網(wǎng)干擾串入PLC控制系統(tǒng)主要通過PLC系統(tǒng)的供電電源(如CPU 電源、I/O電源等)、變送器供電電源和與PLC系統(tǒng)具有直接電氣連接的儀表供電電源等耦合進(jìn)入的?,F(xiàn)在,對(duì)于PLC系統(tǒng)供電的電源,一般都采用隔離性能較好電源,而對(duì)于變送器供電的電源和PLC系統(tǒng)有直接電氣連接的儀表的供電電源,并沒受到足夠的重視,雖然采取了一定的隔離措施,但普遍還不夠,主要是使用的隔離變壓器分布參數(shù)大,抑制*力差,經(jīng)電源耦合而串入共模干擾、差模干擾。所以,對(duì)于變送器和共用信號(hào)儀表供電應(yīng)選擇分布電容小、抑制帶大(如采用多次隔離和屏蔽及漏感技術(shù))的配電器,以減少PLC系統(tǒng)的干擾。 此外,位保證電網(wǎng)饋點(diǎn)不中斷,可采用在線式不間斷供電電源(UPS)供電,提高供電的安全可靠性。并且UPS還具有較強(qiáng)的干擾隔離性能,是一種PLC控制系統(tǒng)的理想電源。 2、電纜選擇的敖設(shè) 為了減少動(dòng)力電纜輻射電磁干擾,尤其是變頻裝置饋電電纜。筆者在某工程中,采用了銅帶鎧裝屏蔽電力電纜,從而降低了動(dòng)力線生產(chǎn)的電磁干擾,該工程投產(chǎn)后取得了滿意的效果。 不同類型的信號(hào)分別由不同電纜傳輸,信號(hào)電纜應(yīng)按傳輸信號(hào)種類分層敖設(shè),嚴(yán)禁用同一電纜的不同導(dǎo)線同時(shí)傳送動(dòng)力電源和信號(hào),避免信號(hào)線與動(dòng)力電纜靠近平行敖設(shè),以減少電磁干擾。 3、硬件濾波及軟件抗干擾措施 信號(hào)在接入計(jì)算機(jī)前,在信號(hào)線與地間并接電容,以減少共模干擾;在信號(hào)兩極間加裝濾波器可減少差模干擾。 由于電磁干擾的復(fù)雜性,要根本消除迎接干擾影響是不可能的,因此在PLC控制系統(tǒng)的軟件設(shè)計(jì)和組態(tài)時(shí),還應(yīng)在軟件方面進(jìn)行抗干擾處理,進(jìn)一步提高系統(tǒng)的可靠性。常用的一些措施:數(shù)字濾波和工頻整形采樣,可有效消除周期性干擾;定時(shí)校正參考點(diǎn)電位,并采用動(dòng)態(tài)零點(diǎn),可有效防止電位漂移;采用信息冗余技術(shù),設(shè)計(jì)相應(yīng)的軟件標(biāo)志位;采用間接跳轉(zhuǎn),設(shè)置軟件陷阱等提高軟件結(jié)構(gòu)可靠性。
本公司主要優(yōu)勢(shì)產(chǎn)品:
【美國,英維思 Invensys FOXBORO I\A系統(tǒng), Triconex ESD系統(tǒng)】
【美國AB ..1756系列,1785系列,1746系列,1747系列,1771系列】
【瑞士ABB.. 機(jī)器人 DSQC系列,ABB Advant OCS,ABB Procontic PLC CPU】
【法國施耐德140*康昆騰系列處理器,內(nèi)存卡,電源模塊等。】
【德國西門子Siemens MOORE,S5,S7,6DD等】
【美國通用電氣GE..IC693/IC697系列】
【美國Westinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)】
【德國Bosch Rexroth(博世力士樂):Indramat,I/O模塊,PLC控制器,驅(qū)動(dòng)模
塊等?!?nbsp;
【美國Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列】
ALLEN BRADLEY 1395-B70NC1P12 25HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1395-B70NC1P50 25HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1395-B70NC1P51 25HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1395-B70NC1PZ 25HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1391-AA45-N-A10 SERVO CONTROL **repair evaluation**
ALLEN BRADLEY 1336F-B040AEFR 40HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-COB75-E 75HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 20BE041A0AYNAND 40HP 575V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336T-B010AAGT1 10HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336T-B010ANGT1 10HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336T-R010ANGT1 10HP AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336T-R010AXGT1 10HP AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336S-B030ANEN 30HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336S-B030ANEN4 30HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336S-B030ANEN5 30HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1395-B63D1P12 2HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1395-B63NC1P12 2HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1395-B63ND1P12 2HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1333-JAA/A 40HP 230V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1333-JAA/B 40HP 230V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1391-DES22DIAQB SERVO CONTROL **repair evaluation**
ALLEN BRADLEY 1391-DES45DI SERVO CONTROL **repair evaluation**
ALLEN BRADLEY 1336S-B020AAEN5 20HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336S-B030AEEN4 30HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336F-C025AAEN 25HP 575V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A0AYNADD 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A0AYNANA 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A0AYNANN 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A3AYNACB 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A3AYNADD 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A3AYNANA 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336E-B040AEEN 40HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1379-105A 105A 1379 DRIVE **repair evaluation**
ALLEN BRADLEY 1388-AV60-DA03 60A 1388 CTRL **repair evaluation**
ALLEN BRADLEY 1398-PDM-150 150A SERVO DRIVE **repair evaluation**
ALLEN BRADLEY 20BE052A0AYNAND 50HP 575V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A5AYNANA 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A5AYNANB 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336S-B030ANFR5 30HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336F-B025AEEN 25HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EAN 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EANFA 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EANL1 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EANL2 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EANL3 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EANS1 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EON 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EONFA 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EONL1 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EONL2 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EONL3 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336VTB015EONS1 15HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336T-B003ANGT0 3HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336T-B003ANGT1 3HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336F-A020ANEN 20HP 230V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336F-B025AAEN 25HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1395-B69NC1P10 20HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1391B-AA15 SERVO CONTROL **repair evaluation**
ALLEN BRADLEY 1395-B69ND1P10 20HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1398-DDM150 150A SERVO DRIVE **repair evaluation**
ALLEN BRADLEY 1398-DDM150X 150A SERVO DRIVE **repair evaluation**
ALLEN BRADLEY 1336S-C025ANFR4 25HP 575V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1370-DDM250 250A DC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A3AYNANC 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A3AYNAND 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1398-PDM-075 75A SERVO DRIVE **repair evaluation**
ALLEN BRADLEY 1336S-B030AXEN 30HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336S-B030AXEN4 30HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336S-C025AAEN4 25HP 575V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1336T-R003ANGT1 3HP AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD052A0AYNANC 40HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD052A0AYNAND 40HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20BD065A0AYNANC 50HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 20DD034A0EYNANN 25HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1391B-ESAA15AQB SERVO CONTROL **repair evaluation**
ALLEN BRADLEY 20BD040A3AYNANA 30HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-COA72 40HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-COA72-E 40HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-COA73 50HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-COA73-E 50HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-COB75 75HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-COB76 100HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-COB76-E 100HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-DOA72 40HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-DOA72-E 40HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-DOA73 50HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-DOA73-E 50HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-DOB75 75HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-DOB75-E 75HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-DOB76 100HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-DOB76-E 100HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1336S-B020AAFR 20HP 460V AC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-AOA70 25HP DC DRIVE **repair evaluation**
ALLEN BRADLEY 1370AR-AOA70-E 25HP DC DRIVE **repair evaluation**