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Sorry I should have had that in my initial post...yes I have QTPlasmaC selected as GUI.

Si la señal es cc lo mediré por tenerlo en cuenta pero si es mas seguro con el rele ssr creo que lo pondré.

Otra pregunta crees que es necesario tener picas de tierra separadas una en la caja de controles y otra en la mesa o no hay ningún problema en estar en la misma?gracias por todas tus respuestas

El plasma es trifasico

Did you also chose QTPlasmaC as the GUI?
(maybe that matters also)

when running said bitfile and using

loadrt hm2_pci config="sserial_port_0=7i77,2500000 sserial_port_1=7i84,2500000"

it doesn´t show a second sserial device when:

sudo mesaflash --device 5i25 --readhmid | grep -i sserial

Maybe i am using the wrong nomenclature or baudrate?

Yes, if you don't know the signal characteristics, 
an external SSR would be safest.

Though if it is a DC signal, you can measure the
current with a DVM (Start at high current range and work down)

No creo que pueda saber si necesita mas de 100mA lo tengo que conectar al gatillo que tenia la antorcha 

Hi,

I added support for the Mesa 7i95t to the pncconf wizard (private_data.py with changes attached) and it seems to work ok other than needing to rename the inm to inmux pins for the 7i95t.  However, the THCAD configuration screen doesn't appear even though I assign an encoder input to arc voltage.  I must be missing something in looking at the code but I don't find where self.d._arcvpin that is used to control the display of the THCAD screen is ever set to anything other than None.  I have QTPlasmaC selected as the gui. Any help is appreciated.

Solved:  Attached updated files with the THCAD tab working.  The pages.py and private_data.py go in /usr/lib/python3/dist-packages/pncconf and the pncconf.txt should be renamed to /usr/bin/pncconf.

That will likely work, but the diode in not needed unless you use a magnetic relay.

It also unnecessary for TORCH_ON as you could use one of the high isolation (OUT4,OUT5)
outputs of the 7I96S directly as long as the current required is not > 100 mA

 

Me podrias confirmar si es correcto? Gracias

I am going to install Linuxcnc on Orange Pi PC Plus. OPC send to FPGA controller
Speed and Axis coordinate in steps. FPGA controller has buffer for all parameters. According my calculations USB speed is enough to work in real time.

In general there is no real advantage to have the local rotary feedback
returned to LinuxCNC (and some electrical disadvantages) So a 7I95T
would have sufficient Encoder channels.

Is the index input jumpered for TTL MODE? (W1 left)

Unless this is done, the results will be unpredictable.
 

Thanks for the info.

So the servo motors I'm looking at are integrated servo/driver/encoder and use stepper control signals. I'm under the impression that I would use a 7I95T card. Seeing as Y will have a slaved servo I'll be short one feedback channel. So I would get a 7I76 to plug in to the 7I95T correct? Then I will have all 7 feedback channels for the 4 servos and the 3 scales. It would also allow for future expansion of an A axis with feedback.

Now, If I go to run a spindle with encoder will that be handled by the 7I95T in addition to the 6 axis channels it has? Also, is this the only card I will need? It sounds like it runs ethernet to the PC and that is it.

So, my signal goes to true, but doesn't return to false once the wire is removed from GND. moreover, it doesn't happen every time. sometimes it works, sometimes it doesn't?

The standard 5i25_7i77x2.bit supports sserial on TB6

Do you have the added channel enabled in the hal file?