Snuggly's Plasma Build

Rodw and Pcw,

I had in my mind to also say 24 volt's. But after reading my post i thought. Maybe start with 5 volt....
This to protect snuggly from blowing up some thing's for second time.
I can't look in his wiring.... So i protect him with usage of 5 volt example's.

I have an idea to solve plasma startup's problem's like this.

Pcw send's me the best suitable ethernet card he has. Upt to 5 axis.

I provide the working plasma / oxyfuel grotius gui for mesa card's to be adapted to linuxcnc source code.

There is no normal circumstance where you would wire the Proma common to the 7I96 input common

If you are using active low inputs you would wire the 7I96 input common to +12 or +24V
and connect the 7i96 inputs to the low side (common ) of the power source to activate
In this circumstance, the Proma common would be the power supply common


If you are using active high inputs you would wire the 7I96 input common to power supply common
and connect the 7I96 inputs to the power supply high side (+12 or +24V) to activate.
In this circumstance you would wire the Proma common to +12/+24V

Pcw,

I think snuggly has made some fault's in his wiring. The mesa will read 24 volt's in, in all circumstances on all input channels.
Proma has no examples of using 24v on common, so user's don't think about that core relais function.
Did you read my last comment? How about that?

I want to help snuggly with a fresh parport application. Then he could cut next week.

Snuggly, grap a parport. We start with one parport, and we are going cut plasma very soon.

pin 2 => step x
pin 3 =>dir x
pin 4 =>step y
pin 5 =>dir y
pin 6 =>step z
pin 7 =>dir z
pin 10 => emergency in
pin 11 => torch down proma
pin 12 => arc oke proma
pin 13 => torch up proma
pin 15 => probe
pin 17 => torch on

I hope you understand the parport settings. This is all you have to connect.
The grotius plasma gui is the next thing to install. First do the wiring.

PCW wrote: There is no normal circumstance where you would wire the Proma common to the 7I96 input common

If you are using active low inputs you would wire the 7I96 input common to +12 or +24V
and connect the 7i96 inputs to the low side (common ) of the power source to activate
In this circumstance, the Proma common would be the power supply common


If you are using active high inputs you would wire the 7I96 input common to power supply common
and connect the 7I96 inputs to the power supply high side (+12 or +24V) to activate.
In this circumstance you would wire the Proma common to +12/+24V

Sorry, for adding to the confusion. So if Snuggly has connected the Proma common his power supply ground (low side) as he stated, then he should have +12V/+24V attached to the 7i96 input common and be using active low switching.

I'm not sure how Grbl works but when I played with an Arduino and steppers, it was all active high so he could have an error here...

@Rod,

Let him start with parport and leave this disqussion behind. He must start with something easy.
After that he can build his second machine. After that, maybe he go's his way or stay with us.

Grotius wrote: Pcw,

I want to help snuggly with a fresh parport application. Then he could cut next week.

I don't think it would be helpful for Snuggly to change systems now. He is very close to getting a result. One of his problems has been he's followed too many "prophets" and tried several approaches leading up to this point. Either there is a wiring fault as alluded here today or the Hal stuff is wrong so that will be up to Tommy to solve. I did see that Tommy said he had one other thing to sort out. But lets make sure the wiring is correct first.