Pairing up Mesa 7i76e with VFD Delta C2000

Hi Guys,

I bought a Syil X7 milling machine, without a controller and I would like to convert it to linuxcnc.
I specifically required that I should be able to do rigid taping and spindle orientation, so they have added a motor that has a resolver on it. The VFD is a Delta C2000.
I think Mesa 7i76e can control the speed of the VFD using a 0-10v signal, but I don't know to input into linuxcnc the data collected from the resolver in order to do rigid taping. Is Mesa7i76e able to read that resolver input?

Thanks,
Vasi

The 7I76E cannot read resolvers, only quadrature encoders via its encoder input or SSI/BISS encoders via its serial expansion port. You can get resolver to quadrature converters but it may be cheaper to just replace the resolver with a standard quadrature encoder.

I thought you will mention about this board:
store.mesanet.com/index.php?route=produc...oduct&product_id=101

So if I understand correctly, in order to do rigid taping and spindle orientation with Mesa 7i76e I would need an encoder input?

The 7I49 will not work with the 7I76E (well not easily anyway as its meant to interface to 50 pin I/O FPGA cards)

Yes, for rigid tapping and spindle orientation you need some kind of encoder. the 7I76E supports one quadrature encoder input for this purpose.

And how does it tell back to the spindle motor how to rotate on a specific orientation? Is the Mesa7i76e gonna control the VFD through 0-10v signal for rigid taping?

Yes the 7I76E has a 0-10V output for VFD control
There's also direction output

My drive is a Delta C2000
www.deltaacdrives.com/wp-content/uploads...2000-User-Manual.pdf

I understand that there are two ways I can control this motor. The simplest would be 0-10v, but I would get no feedback regarding the load.
And another one would be modbus. I think I read somewhere that mesa 7i76e supports modbus.
I'm new to all these...so can anyone of you guide me on how to start controling that VFD with 0.10v signals? I don't know exactly what settings I need to do in the hal file or how to wire them exactly to Mesa 7i76e.

Thanks in advance!
Vasi

Hi Andy,

I wired the VFD to the board as described in the picture that you referred above.
What lines do I need to add to the HAL and INI files in order to talk with the vfd.

Thanks,
Vasi