190E-ANKD1-CB40B-KY現(xiàn)貨
產(chǎn)品介紹:
JD1系列電磁調(diào)速電機(jī)控制器(俗稱(chēng)滑差電機(jī)控制器)是機(jī)械工業(yè)部全國(guó)聯(lián)合設(shè)計(jì)產(chǎn)品,用于JZT,YCT系列電磁調(diào)速電動(dòng)機(jī)的轉(zhuǎn)速控制,實(shí)現(xiàn)恒轉(zhuǎn)矩?zé)o級(jí)調(diào)速。當(dāng)負(fù)載為風(fēng)機(jī)和蹦類(lèi)時(shí),可節(jié)電10~30%,節(jié)能效果顯著,是我國(guó)推廣的節(jié)能產(chǎn)品之一。JD1A型控制器,通過(guò)面板上的旋鈕,可實(shí)現(xiàn)電機(jī)寬范圍的手動(dòng)無(wú)級(jí)調(diào)速。本系列控制器具有結(jié)構(gòu)簡(jiǎn)單,維護(hù)方便,抗干擾能力強(qiáng)和溫度穩(wěn)定性好等優(yōu)點(diǎn)。
型號(hào) JD1A JD1A-90
輸入電源 ~220V±10%, 頻率50~60Hz
大輸出 直流90V5A 直流90V8A
可控制電機(jī)功率 0.55~40KW 40-90KW
調(diào)速范圍 132~1320轉(zhuǎn)/分 440~1320轉(zhuǎn)/分
轉(zhuǎn)速變化率 ≤2.5
穩(wěn)速精度 ≤1%
包括JD1A電磁調(diào)速電機(jī)控制器(滑差電機(jī)控制器)、JD1A-90電磁調(diào)速電機(jī)控制器(滑差電機(jī)控制器)、JD1B電磁調(diào)速電機(jī)控制器(滑差電機(jī)控制器)等.
) 臨時(shí)變量
臨時(shí)變量?jī)H在邏輯塊運(yùn)行時(shí)有效,邏輯塊結(jié)束時(shí)存儲(chǔ)臨時(shí)變量的內(nèi)存被操作系統(tǒng)另行 分配。S7將臨時(shí)變量定義在L堆棧中,L堆棧是為存儲(chǔ)邏輯塊的臨時(shí)變量而專(zhuān)設(shè)的。當(dāng)塊程序運(yùn)行時(shí),在L堆棧中建立該塊的臨時(shí)變量,一旦塊執(zhí)行結(jié)束,堆棧重新分配,因而信息丟失。
邏輯塊局部數(shù)據(jù)的數(shù)據(jù)類(lèi)型
在變量聲明表中,要明確局部數(shù)據(jù)的數(shù)據(jù)類(lèi)型,這樣操作系統(tǒng)才能給變量分配確定的 存儲(chǔ)空間。局部數(shù)據(jù)可以是基本數(shù)據(jù)類(lèi)型或復(fù)式數(shù)據(jù)類(lèi)型,也可以是專(zhuān)門(mén)用于參數(shù)傳遞 的所謂的“參數(shù)類(lèi)型”。參數(shù)類(lèi)型包括定時(shí)器、計(jì)數(shù)器、塊的地址或指針等,見(jiàn)表5.2。表5.2 參數(shù)類(lèi)型變量
參數(shù)類(lèi)型 大 小 說(shuō) 明
定時(shí)器(Timer) 2 B 在功能塊中定義一個(gè)定時(shí)器形參,調(diào)用時(shí)賦予定時(shí)器實(shí)參
計(jì)數(shù)器(Counter) 2 B 在功能塊中定義一個(gè)計(jì)數(shù)器形參,調(diào)用時(shí)賦予計(jì)數(shù)器實(shí)參
塊:
Block_FB
Block_FC
Block_DB
Block_SDB 2 B 在功能塊中定義一個(gè)功能塊或數(shù)據(jù)塊形參變量,調(diào)用時(shí)給功能塊類(lèi)或數(shù)據(jù)塊類(lèi)形參賦予實(shí)際的功能塊或數(shù)據(jù)塊編號(hào),如
FC 101、DB 42
指針(Pointer) 6 B 在功能塊中定義一個(gè)形參,該形參說(shuō)明的是內(nèi)存的地址指針。例如,調(diào)用時(shí)可給形參賦予實(shí)參P#M50.0,以訪(fǎng)問(wèn)內(nèi)存M50.0
ANY 10 B 當(dāng)實(shí)參的數(shù)據(jù)類(lèi)型未知時(shí),可以使用該類(lèi)型
1) 定時(shí)器或計(jì)數(shù)器參數(shù)類(lèi)型
在功能塊中定義一個(gè)定時(shí)器或計(jì)數(shù)器類(lèi)型的形參,功能塊就能使用一個(gè)定時(shí)器或計(jì)數(shù)器,而不需明確具體的定時(shí)器或計(jì)數(shù)器,等到調(diào)用該功能塊時(shí)再確定定時(shí)器或計(jì)數(shù)器號(hào)。這使用戶(hù)程序能靈活性地分配和使用定時(shí)器或計(jì)數(shù)器。當(dāng)給定時(shí)器或計(jì)數(shù)器參數(shù)類(lèi)型形參分配實(shí)參時(shí),在“T”或“C”后跟一個(gè)有效整數(shù),如T 100。
2) 塊參數(shù)類(lèi)型
當(dāng)定義一個(gè)作為輸入輸出的塊時(shí),參數(shù)聲明決定了塊的類(lèi)型(FB、FC、DB等)。當(dāng)為塊參數(shù)類(lèi)型形參分配實(shí)參時(shí),可以使用物理地址,如FC 101,也可使用符號(hào)地址,如“valve
3) 指針參數(shù)類(lèi)型
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