2 seperate MPG handwheels for each axis - CNC Lathe build

Yes, that is how i thought it should be and i know from my CNC router. (when running gcode - no jogging possible).
But, when gcode is not running, can i then just use the MPG wheels to move the axis or do i first need to activate them? (that might be a strange questions, but i want to make sure i understand it correctly).

Today the 7i76e arrives, so i can start to make some tests

Hello,
after a lot of problems at installing the correct version of Linux/Debian, i got it yesterday to work. Linuxcnc 2.7 stable version is installed, the 7i76E is connected properly and linuxcnc starts without any errors.

I am trying to connect the MPG handwheels but i have to admit that i will not get it to work without any help. It is just to complicated for me. Thats because i am trying to do exactly what "Rodw" described on his Plasma build ( Rods "Spaceship" Scratch built Plasma Cutter build ) but also i found this topic: Mesa 5i25 and 7176 getting started (post: #58904) .

The wiring setup differs and that is for me already strange, because "Rodw" used the RS-422 interface and "amhfabs" used the TB5 1-4 Pins (or at least Pin 1 and Pin 2 for one mpg handwheels)

Actually i found this official manual: wiki.eusurplus.com/downloads/7i76E.pdf and on page "Connection of MPG's" the TB5 1-4 pins are used to connect the MPG Handwheels, so as "amhfabs" did it.
I hope you understand why i am really confused about the wiring and i did not even start with the HAL setup, which i think will be a much bigger problem for me. I do also dont know if i could make the whole HAL setup (also for the MPG handwheels) with pcconf tool, or just do it by writing the codes in the HAL by hand.

Trust me, i feel bad to ask you explain me exactly what to do, because i would like to do it by my self to understand it and get other things in future to work without any help, but it seems that this stuff is not for me. I managed to wire up a cheap Polish Breakout board for my CNC router with slave axis and did the HAL setup etc. somehow almost completly by my self, but the MESA 7i76e and MPG handwheels wiring and HAL setup is next level sh** for me if i can say so.. :laugh:

*on the picture you see my 7i76e card and how the 24v is connected.
MPG terminal wiring:

EDIT: I forgot to mention why its even more confused and at least you will maybe see that i am trying to think about the wiring and understand it and wire it up as "Rod" described in the Plasma build and hope it will work:
Rodw wrote:

I did run into trouble until I found a post from PCW which said if you are using a separate 5V power supply like I am, you needed to tie the 24 volt and 5 volt pin Grounds together. Eg. Connect TB1.1 to TB2.23. But if you follow this wiring schematic , you won't need to do thi

Thats confusing for me, because:
TB1 Pin 1 is : VFIELD FIELD POWER 8-32V
TB2 Pin 23 is: 23 DIR3+
That are both no ground pins, so i hope you understand why i am confused :dry:

Not meant negative
What is your problem with the wiring diagram?
Do you have eventualy more terminals on your mpgs.

I edited my last post and also attached a picture of the MPG terminal wiring.

It is as simple as using pin 1 and 2 for the first MPG and pin 3 and 4 for the second one.
Pncconf will get you pretty close to what you need but some editing is required for setting it in mode2 and copy/paste the MPG stuff to where it belongs.
Smart serial is used in conjunction with 7i73 or some other Mesa cards.

denhen89 wrote: Thats confusing for me, because:
TB1 Pin 1 is : VFIELD FIELD POWER 8-32V
TB2 Pin 23 is: 23 DIR3+

Yup that is confusing as pin 23 ot TB2 is Dir+.
Just connect the ground of both power supplies together.
You can use Pin 1 on TB2 or TB3, but i would avoid that to prevent ground loops and current being drawn through 7i76.