| 品牌：AB | 規格：1746-OA8 | 材質：1746-OA8 |
| 產地：美國 |
1746-OA8
1746-OA8
1746-OA8
輸入信號X00消失時，定時器線圈TOO通電，到達設定時間後，TOO常閉觸點斷開，Y00線圈斷電。因此構成了常開斷電延時觸點。
在對某觸點即需要通電延時，又需要斷電延時，則可採用圖7(b)由兩個定時器組成的電路。此電路相當於常開通電延時閉合、斷電延時斷開觸點。由此可見，利用PLC內部繼電器組成的延時電路在選型、工藝、改裝等各方面都要比普通時間繼電器靈活方便得多。
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