電動閥門智能定位器是以工業(yè)單片機為核心的智能信號采集控制系統(tǒng)，體積小巧，可選擇安裝在電動執(zhí)行器的接線盒內(nèi)或以DIN導(dǎo)軌方式固定在外，能直接接收工業(yè)儀表或計算機等輸出的4~20mA DC信號(其它輸入信號類型可在出廠前定制)，與電位器反饋的電動執(zhí)行器配套對各種閥門或裝置進行精確定位操作，能對電動執(zhí)行器的轉(zhuǎn)角（或位移）進行自由標(biāo)定，同時輸出4~20mA DC的執(zhí)行器轉(zhuǎn)角位置（或位移）反饋轉(zhuǎn)換信號，可按鍵精確設(shè)定執(zhí)行器轉(zhuǎn)角位置的下限限位值和上限限位值，定位器采用3個按鍵操作，9個LED燈可直接顯示定位器模態(tài)，4位數(shù)碼LED通過按鍵切換顯示閥位實際開度值、閥位設(shè)定開度值、定位器殼內(nèi)溫度，操作方便。

1，控制精度：0.1%~3.0%(通過U4參數(shù)可調(diào))

2，可接電動執(zhí)行器反饋信號：電位器500Ω～10KΩ

3，可接收外部控制信號（DC）：4~20mA （1~5V、0~10V、開關(guān)量等出廠前定制）

3，輸入阻抗：250Ω；

4，通過修改U1參數(shù)可設(shè)定：①DRTA/正動作，RVSA/逆動作模態(tài) ②輸入信號中斷時“中斷”模態(tài)—OPEN(開)、STOP(停)、SHUT(閉)

可選：①可控硅輸出（AC，1000V，25A）②繼電器輸出（AC，250V，10A）◆定貨時指明

5，輸出執(zhí)行器位置信號：低漂移輸出4~20mADC對應(yīng)執(zhí)行器全閉至全開，信號完全與輸入隔離（光電隔離），輸出負(fù)載≤500Ω

6，環(huán)境溫度：0~70℃，相對濕度：≤90%RH

7，有超溫保護功能: 定位器殼內(nèi)溫度≥70℃時，定位器停止對執(zhí)行器的開閉控制

8，可通過按鍵自由標(biāo)定輸入信號所對應(yīng)執(zhí)行器的動作區(qū)間（一般標(biāo)定為電動執(zhí)行器全閉、全開位置）

9，可設(shè)定上下限位點

10，執(zhí)行器堵轉(zhuǎn)檢測控制功能：如控制執(zhí)行器發(fā)生堵轉(zhuǎn)持續(xù)3~4S，定位器則斷開控制輸出1min；反復(fù)檢測控制，至堵轉(zhuǎn)排除。

11，可設(shè)定自調(diào)精度：執(zhí)行器在工作過程中，無法定位，出現(xiàn)來回振動3次，定位器自動把定位精度降低1/1000（即：原精度+1/1000），反復(fù)調(diào)節(jié)至適合的控制精度。設(shè)置參數(shù)為U0（000.x）

12，密碼鎖，防止誤操作

13，防執(zhí)行器頻繁啟動功能

14，帶錯誤代碼指示故障原因（E_0X）

15，按輸入信號和執(zhí)行器轉(zhuǎn)角位置進行智能步距調(diào)整精確定位


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