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8 lines
428 B
8 lines
428 B
limit switches, also EStop switches (emergency) should
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always activate low, idle high. it must idle high, because
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consider what would happen if it idles low, then the wire
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gets inadvertedly disconnected. you wouldn't notice it.
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BUT, you can also just put all estops on an actual hardware
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disconnect for best practice. At the risk of frying some
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not robust chips (tradeoff). Though the note for limit switches
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remains correct.
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