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廈門市泰尼電器有限公司
主營產(chǎn)品： AB模塊PLC |
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廈門市泰尼電器有限公司
主營產(chǎn)品： AB模塊PLC |
| 參考價 | 面議 |
1734-IK++++1734-IK
++++
輸出階梯的設(shè)計輸出階梯
如圖2b所示。其設(shè)計方法是：（1）在控制流程圖中，找出某輸出繼電器M在哪一步開始得電和在哪一步開始失電，以此確定其得電信號（步進(jìn)階梯中使M開始得電的輔助繼電器常開觸點）和失電信號（步進(jìn)階梯中使M開始失電的輔助繼電器常閉觸點）；（2）將得電信號、失電信號和受控輸出繼電器線圈串聯(lián)。如果某個輸出繼電器在一個工作循環(huán)中多次得電失電，則將每次得失電的串聯(lián)信號互相并聯(lián)即可。例如，圖1中輸出繼電器Y1要求在步1和步3得電，在其余步失電。在圖2b畫其控制回路時，將圖1所示的*次得電信號M1和*次失電信號M2串聯(lián)，第二次得電信號M4和第二次失電信號串聯(lián)，然后將二者并聯(lián)起來，再與Y1的線圈串聯(lián)便構(gòu)成Y1的控制回路。其余依此類推。
：張亮（工程師） 專線：
24小時移動專線： 【】
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