描述

向左進(jìn)給的控制回路是：

9→SQ5-2→11→SQ4-2→12→SQ3-2→13→SA3-1→16→SQ2-1→19→KM3線圈→20→KM2→21。

當(dāng)將縱向進(jìn)給手柄扳回到中間位置（或稱(chēng)零位）時(shí)，一方面縱向運(yùn)動(dòng)的機(jī)械機(jī)構(gòu)脫開(kāi)，另一方面微動(dòng)開(kāi)關(guān)SQ1和SQ2都復(fù)位，其常開(kāi)觸點(diǎn)斷開(kāi)，接觸器KM2和KM3釋放，進(jìn)給電動(dòng)機(jī)M3停止，工作臺(tái)也停止。

終端限位保護(hù)的實(shí)現(xiàn)：在工作臺(tái)的兩端各有一塊擋鐵，當(dāng)工作臺(tái)移動(dòng)到擋鐵碰動(dòng)縱向進(jìn)給手柄位置時(shí)，會(huì)使縱向進(jìn)給手柄回到中間位置，實(shí)現(xiàn)自動(dòng)停車(chē)。這就是終端限位保護(hù)。調(diào)整擋鐵在工作臺(tái)上的位置，可以改變停車(chē)的終端位置。

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主營(yíng)：世界知名品牌的PLC、DCS系統(tǒng)備件模塊

①Allen-Bradley(美國(guó)AB)系列產(chǎn)品》

②Schneider(施耐德電氣)系列產(chǎn)品》

③General electric(通用電氣)系列產(chǎn)品》

④Westinghouse（美國(guó)西屋）系列產(chǎn)品》

⑤SIEMENS(西門(mén)子系列產(chǎn)品)》

⑥銷(xiāo)售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。

⑦estinghouse（西屋）：OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。

⑧Invensys Foxboro（?？怂共_）：I/A Series系統(tǒng)，F(xiàn)BM（現(xiàn)場(chǎng)輸入/輸出模塊）

順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)

據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余（TMR）

結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。

⑨Siemens(西門(mén)子)：Siemens MOORE，Siemens Simatic C1，Siemens數(shù)控系統(tǒng)等。

⑩Bosch Rexroth（博世力士樂(lè)）：Indramat，I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。

◆Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

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