Prox sensors for plasma table - Advice needed

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21 Dec 2020 21:50 #192727 by txtrone
Which/what type of proximity sensors have worked well for home and limit switches? I am wiring up a 5' x 10' plasma table, using a Mesa 7i76e, and would like to use some decent proximity sensors.

Also, how exactly do the home and limit sensors/switches connect to the 7i76e?

Thx

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21 Dec 2020 22:00 #192731 by thefabricator03
I cannot recommend the prox sensors as I use industrial limit switches but I have attached my wiring diagram I made for wiring my 7i76e which shows how I wired up mine.
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21 Dec 2020 22:17 #192735 by txtrone
Thanks! Which limit switches did you go with?

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21 Dec 2020 22:21 - 21 Dec 2020 22:22 #192736 by thefabricator03
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Last edit: 21 Dec 2020 22:22 by thefabricator03.
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21 Dec 2020 22:32 #192737 by tommylight
I used prox on the last two and will use on the two current builds, cheap ones, NPN, they do work nicely, just do not use the included cable, it is not shielded, so i cut it some 7 to 10 cm from the sensor and wire shielded cable.

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21 Dec 2020 22:33 #192738 by PCW
If you use proximity sensors with the 7I76E, make sure you
select "PNP" type sensors

(NPN types require an external pullup resistor per sensor)
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21 Dec 2020 22:58 - 21 Dec 2020 23:15 #192742 by txtrone

I am using these Telsa brand switches I brought locally.

Those are heavy duty compared to the toy switches I had been using with my old setup.
Last edit: 21 Dec 2020 23:15 by txtrone. Reason: quote
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21 Dec 2020 23:14 #192744 by txtrone

I used prox on the last two and will use on the two current builds, cheap ones, NPN, they do work nicely, just do not use the included cable, it is not shielded, so i cut it some 7 to 10 cm from the sensor and wire shielded cable.

If you use proximity sensors with the 7I76E, make sure you
select "PNP" type sensors

(NPN types require an external pullup resistor per sensor)


On the low end of their price scale, my local electronics outlet has Omron and RS Pro. These here are $22/each, plus the plug, and wire.

www.alliedelec.com/product/omron-automat...ks04-m1-b1/70330923/

*Plug sold separately, wire not included, some assembly required, see store for full details*
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21 Dec 2020 23:29 #192748 by tommylight
FYI, on the 2 new builds using PNP sensors.
Sorry, forgot to mention that.

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21 Dec 2020 23:37 #192750 by txtrone
Are they anything like the model in the link from my previous post?

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