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              PLC企業資訊
                SS-810-6
                發布者:gw0002  發布時間:2018-08-30 09:51:44

                SS-810-6

                SS-810-6

                SS-810-6

                《聯系人;歐先生》
                《座機:0592-5709825》
                《傳真:0592-5917519》
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                《QQ  :2479261344》
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                線切割機床的電氣及電機控制部分。絲筒電機控制部分控制電機及絲筒,帶動鉬絲作快速正反的啟動運行和停止,并提供各種相應保護功能。其它類型機床電氣控制通常采用繼電器控制方式,也比較實用,但這種控制方式存在著下述一系列的問題:

                (1)繼電器接觸器動作頻繁,損耗相對較大;中間轉換控制復雜,出故障可能性高。

                (2)電機頻繁正反向全壓啟動,啟動電流大,對絲筒機械部件沖擊大。

                (3)接觸器觸點頻繁閉合斷開造成的噪聲大。

                這些問題導致的主要后果是整個加工可靠性降低,燒絲等問題增多,這勢必導致二次加工,最終影響產品質量,造成不必要的經濟損失。針對上述存在的問題,故用小功率變頻器來實現原控制方式的改進,其理由主要有以下幾點:

                (1)變頻器產品技術成熟、性能可靠,已被廣泛應用于異步電機各控制系統中。

                (2)利用變頻器的外接控制輸入端子和反映運行狀態的輸出端子以及強大的可編碼功能,可以根據被控對象和控制方式的不同進行靈活選擇和設定,省去了復雜的中間轉換控制。

                (3)電機的啟停時間及電流可分別通過手動編碼或自動設置完成,減少了原方式中起動電流大,機械沖擊大的弊病。

                (4)主電路的相序切換通過變頻器內部集成控制電路完成(無觸點切換)。另外源信YX3500系列變頻器內還設有直流制動功能,并設定當電機轉速為0后,制動過程可自動解除,避免由于操作不當電機所承受的不必要的大電流。

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                CONTROL TECHNIQUES 142DSD300TAAAA USPP 142DSD300tAAAA
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                CONTROL TECHNIQUES 95DSB301CAAAA USPP 95DSB301CAAAA
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                CONTROL TECHNIQUES 960473-02 NSFP 96047302
                CONTROL TECHNIQUES 960473-03 USPP 96047303
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                CONTROL TECHNIQUES 960500-06 USPP 96050006
                CONTROL TECHNIQUES 960750-16 NSFP 96075016
                CONTROL TECHNIQUES AX-4000-00-0D-000 USPP AX4000000D000
                CONTROL TECHNIQUES CD-220 USPP CD220
                CONTROL TECHNIQUES CD-220K USPP CD220K
                CONTROL TECHNIQUES CD-220K-R USPP CD220KR
                CONTROL TECHNIQUES CDE11-75POD USPP CDE1175POD
                CONTROL TECHNIQUES CDE15HP USPP CDE15HP
                CONTROL TECHNIQUES CDE15HPICD USPP CDE15HPICD
                CONTROL TECHNIQUES CDE40HPICD USPP CDE40HPICD
                CONTROL TECHNIQUES CFCS-065 USPP CFCS065
                CONTROL TECHNIQUES CFEF-050 NSPP CFEF050
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                CONTROL TECHNIQUES DXE-450 NSFP DXE450
                CONTROL TECHNIQUES DXE-450 USPP DXE450
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