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h30631
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樓主  發(fā)表于: 2013-11-28 08:41
請教各位

有遇過(guò) Y 電晶體輸出異常的嗎?
我的接法是全部輸出COM點(diǎn)都接"-24V" ，都是驅動(dòng)24V電磁閥
出現 Y4 動(dòng)作時(shí) Y5也跟著(zhù)動(dòng)作，但是Y5的輸出訊號燈沒(méi)有亮
而且時(shí)好時(shí)壞，但是通常不是只有繼電器輸出才會(huì )有可能接點(diǎn)壞掉的情況嗎?

而且為什麼是時(shí)好時(shí)壞?

另一個(gè)問(wèn)題，用繼電器輸出的驅動(dòng)24V電磁閥，Y點(diǎn)常常就損壞，長(cháng)ON不放開(kāi)，但也是時(shí)好時(shí)壞
斷電一下子，就可以恢復正常，但是過(guò)一會(huì )，又會(huì )異常，請問(wèn)這是接點(diǎn)壞掉嗎?
是什麼原因造成的?

煩請解惑，謝謝
h30631
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發(fā)帖數量: 90 個(gè)
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1樓  發(fā)表于: 2013-12-02 09:21
請問(wèn) 洩流二極管 要怎麼接?

直接 Y 點(diǎn)接洩流二極管 再接上線(xiàn)嗎?

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