Den ons 9 dec. 2020 kl 17:41 skrev Sven Wesley <svenne.d...@gmail.com>:
> > Maybe my intentions have been unclear and now I'm a bit confused. The > drives provide a high signal on one pin when they are working. If they fail > the pin goes low. My initial thought was to connect all four pins to one > input on the 7i96 and configure it to trigger a software stop. > Like Gene proposed, shouldn't it work with all wires to one input with a > diode in series on each pin? > > Best regards, > Confusedius > Sorry if this is a double post, I believe my attachment was too big and the post was blocked. I just realized my own mistake. I can't wire them like I suggested. I could probably wire all four to one input without the diodes but then I would never see which one that actually fails (red warning LED on every drive). All will ground if one fails and then all will fail. I mean, it would be OK but less optimal. Would it be possible to use optocouplers and serial to parallel adapt the wiring? I hope my attached image makes sense but please see it as a suggestion. I also found a sketch of the internals of the Bucck board, hope that helps. What do you electro ninjas think? Bucck board design: http://www.icstation.com/images/uploads/11070_1.jpg
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