OMRON Yaskawa controllers, what I/O board would you choose

Newbie here! Be gentle

I have recently acquired a bunch of Omron Yaskawa servos and SGDH drives from a running machine.

Read the LinuxCNC documentation a while ago planning for a CNC setup for my minor lathe.
Searched the forum for experience with the Omron Yaskawa SGDH controllers. One guy doing mesa to control the SGDH.

First of all i would like to do x-y axis operations to do threads etc. Long term perspective i would like to do 3 axis machining, making the spindle A-axis servo controlled - and mounting a spindle on the x-y axis.


I have not settled on a PC platform yet. But concidering making it simple and cheap as a start. And I can upgrade if i find myself in a situation where it is meaningful to throw more money at the platform.

Questions:
1. What are my simple I/O options, a RPI5 and a basic I/O card, a BeagleBone with a cape ? Any recommendations ?
2. If i later on do the A axis i plan on installing the Sevo drive with a gearing that will get up to max 600rpm. . It is a small hobby lathe and  currently is has a 700W motor. Anyone with experience running servo on an A-axis - the servo motor i have is a 1200W type?

Hope this is meaningful, if not let me know and i will try to elaborate.

Thanks in advance!










 

I guess an important information is, i plan to run the drives in position control.
I plan to use the Yaskawa in closed loop.

So the drives would receive STEP and DIRECTION signal. According to manual i also has a completion signal called COIN. And obviously some alarm and enable signals as well.

Hope this clarifies a bit.

For step/dir, Mesa 7i96S is the right choice, and if you do need more IO add Mesa 7i84 with 32 inputs and 16 outputs and wires to 7i96S with a simple cut down LAN cable.

If need more I/O than a 7I96S can provide, a 7I76EU is a one card solution (basically a 7I96S+7I84U on one card)