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smallnick
do good
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樓主  發(fā)表于: 2011-12-09 15:10
對于緊急停止電路，大家討論的很多，現把這個(gè)標準拿出來(lái)和大家分享，就會(huì )知道為什么緊急停止要常閉，為什么有時(shí)候要雙常閉觸點(diǎn)，為什么用安全繼電器了。
何舞汽
多談些問(wèn)題，少談些主義！
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1樓  發(fā)表于: 2011-12-09 18:49
可惜是英文的，但還是說(shuō)聲謝謝！
閑坐莫談國是！

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