February 13th, 2012, 09:41 PM
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#25 (permalink)
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Member
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- Sep 2009
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Re: Anatol Trident 6/8 year 2000 optical safety sensor missing
Also, the sensors on mine can be wired either way, PNP or NPN. It's a pretty dumb circuit and prone to failure from the beginning as one sensor in an untripped state serves as the ground to turn the second sensor on. So if one sensor is buggy or flaking out you can be sure it will mess up the secondary sensor and kill the indexer. I assumed they did this so they'd only have to have one input for the optical sensors on the main board rather than two. Whatever the reason it is bypassed now!
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