1785-BEM產(chǎn)品描述:
1785-BEM
公司名稱:廈門卡庫電氣有限公司
詢價熱線:0592-5709823
聯(lián)系人:嚴(yán)小姐
QQ:1093230189
傳真:0592-5709828
以快速、高精度跟蹤為主要目標(biāo)的位置伺服系統(tǒng)是廣泛應(yīng)用于高精度位置控制的主要控制方式之一.其驅(qū)動信號為代表位置命令的脈沖信號 介紹了以全數(shù)字式交流伺服MINAS系列為執(zhí)行結(jié)構(gòu).利用S7 200CPU214/DC 的高速計數(shù)器與PTO集成脈沖輸出功能實現(xiàn)對包裝印刷住置伺服系統(tǒng)驅(qū)動的方案和軟件的開發(fā)。 關(guān)鍵詞: 位置控制;交流伺服系統(tǒng);驅(qū)動器;包裝印刷機(jī);色標(biāo)傳感器 在科學(xué)技術(shù)日新月異發(fā)展的當(dāng)今時代.為滿足現(xiàn)代人消費(fèi)對商品包裝精美化的要求,包裝印刷生產(chǎn)線的高自動化、位置跟蹤的精確度要求越來越高 將各類先進(jìn)技術(shù) 群體綜臺應(yīng)用方式應(yīng)用于包裝線上.謀求實現(xiàn)包裝印刷生產(chǎn)線高自動化、高教能已迫在眉捷 而全數(shù)字化交直一交流變頻伺服驅(qū)動器控制精度高、響應(yīng)速度快、抗干擾性強(qiáng)。將它應(yīng)用于包裝線上形成閉環(huán)位置控器有非常重要的意義它解決了包裝印刷上靠人工進(jìn)行初始定位和調(diào)節(jié),操作復(fù)雜,定位誤差大,動態(tài)節(jié)拍慢,運(yùn)動中發(fā)生錯位現(xiàn)象嚴(yán)重.套色生產(chǎn)困難等許多問題。 1 MINAS系列全數(shù)字式交流伺服系統(tǒng)的原理特點及操作[sup][1][/sup] : 我們使用變頻驅(qū)動器為松下MSD 全數(shù)字式矢量控系統(tǒng)。它利用PWM 脈寬調(diào)制變額.性能強(qiáng)大.適用于高性能位置控制器,它有38個參數(shù)設(shè)置.6種控制方式,其中脈沖串位置控制最為獨特 因為它使用一定額率的脈沖信號作為代表位置命令的輸人號.在復(fù)雜的工作現(xiàn)場中.它比模擬速度輸人信號精度高.抗干擾性強(qiáng)。
系統(tǒng)的組成 圖1所示為IGBT 整流變壓的PWM 型矢量控制變頻調(diào)違系統(tǒng)的原理圖。頻率給定信號經(jīng)軟起動作為給定積分器的輸入.給定積分器的輸出分別控制頻率和正、反轉(zhuǎn)。函數(shù)發(fā)生器是為了低頻時保持電動機(jī)氣隙磁通一定.補(bǔ)償定子電阻壓降的影響而設(shè)置的。逆變器輸出電壓控制采用電壓電流雙環(huán)謂節(jié)系統(tǒng) 變頻控制電路采用一個絕對值放大器。這是因為給定信號可正可負(fù).而PWM 詞節(jié)需要極性不變的控制信號。變頻控制信號控制三相正弦波發(fā)生器,產(chǎn)生頻率可變的三相正弦渡.PWM 調(diào)制信號是由恒幅變頻正弦泣與三角波比較而產(chǎn)生的根據(jù)給定信號正、負(fù).經(jīng)邏輯田換電路改變相序.以實現(xiàn)正、反轉(zhuǎn)控材。
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