Wiring THC A-D 300 to plasma cnc interface.

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06 Nov 2021 03:11 #225463 by rodw

It has Solid State Relays, as far as i recall ... from reading the manual ! :)

Yes but confirmed by PCW to be perfectly OK as dry contacts. Lets not go there again. Polarity is imprtant.
The following user(s) said Thank You: tommylight

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09 Nov 2021 22:40 - 09 Nov 2021 22:44 #225889 by ML
Topic has to be changed to THC A-D 10 )
I thought about module relay and your idea to replace it with built-in MESA SSR. I suppose it would be more safe use another relay module (also Solid-State) MOSFET AOD4184. I don't want to risk with mesa card. 
I changed THCAD from 300 to 10, as you recommended because my plasma has not raw voltage output. Please have a look at new scheme below.  


I have following questions: 
1) have I right thcad wiring between mesa card and plasma?
2) how mesa 7i96 output pins works? Is it just relay or "+" and "-" important and can I connect MOSFET signal pin to mesa OUT0+ (and leave OUT0- without any wiring)
Thanks)

Here is how my control box looks, so there is not so much place and I have to use power supply that I have (5 V, 12 V and 36 V)
 
 
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Last edit: 09 Nov 2021 22:44 by ML.

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01 Dec 2021 09:46 #228105 by Muncie
Very interesting thank you.

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