SIEG SX3.5Z Drivers EtherCAT A6 Steppers

Hello,

i bought this Sieg Typ Mill SX 3.5 from Paulimot in Germany. I now need to buy Steppers and Drivers. 
This is the Mill:  sieg-sx3.5z i bought the mill with glas scales and i like to implement them in the driver if possible?

I am thinking of getting the following Driver and Steppers, if this makes sense:   400-w-ethercat-ac-servomotor-kit 
it would be nice if the experts can give me a feedback because iam quit new to this topic. 
thank you 

nobody

You can use glass scales instead of the servo's encoder. BUT.
The driver must interface to the glass scales. And that is most likely the problem.
I'm guessing the glass scales uses incremental quadrature signal.
In the product listing it's mentioned 17-bit absolute encoder.
That's not the same and will not work.
You must check the capabilities of the drive, if it can accept incremental quadrature signal.
If it can do that, there is a big chance it will work.
Summary:
- Check interface of the glass scales
- Check that the drive can use that.
 

juan13372k wrote:

... i bought the mill with glas scales and i like to implement them in the driver if possible?

No, but you can use them with LinuxCNC and leave the drives as they are.
You would need a Mesa 7i95T board as it has step/dir outputs and encoder inputs so the glass scales would be wired to those encoder inputs.
There are other combinations of Mesa boards, like 7i96S with 7i85 etc, but first make sure the glass scales can be wired to normal incremental encoder inputs.

Okay i see so i dont get away with a cheap stepper driver like those from steppersonline.
I need one which has real closed loop capability. Like  leadshine el8  I mean this is a total different price class
I wonder if it makes sense on a cheap chines benchmill... Probably not my bad I bought the mill with the glass scales.

The leadshine el8 has this external encoder plug. This cheap chines glass scales have only VGA plug.

The question also would be if the glass scales provide the right signal via the cabel for the stepperdriver.

Has anybody have experience with that?

why not get a kit of closed loop steppers and use them with say a 7i97t in velocity mode. or use a 7i96s and add an encoder board later.
Then you might be able to get your scales going in position mode at your leisure and have a dual feedback system.
But I have a similar Seig SX3 and it may be overkill for what it is. A friend has an early Syil CNC machine which is based on a SX3.... open loop steppers and he does some really intricate stuff.