intending to use a servo motor as a spindle with mesa 7i96s

The analog input is VREF and AGND (pin 25 and 13)

PCW wrote:

The analog input is VREF and AGND (pin 25 and 13)

So it can run as a stepper motor and as a analog/spindle

I will make a wire diagram and post a new thread within 2 to 3 weeks (time permits) before powering.

Many thanks 

Philip

Tommylight thanks for this, I had completely forgotten that the 7i96s has an output of 0-10v cw or ccw, it depends on how the motor phases are connected mechanically... on the lathe that I plan to retrofit, the main spindle is an Ac servo and the factory of course has cw ccw.. my question is whether in that case I will be able to set the counter direction with some magic in the hal
i mean m3-M4 ,or via some relay that would change the motor phases or a third option to find the input pin for changing the direction on the Simodrive itself? there is another option to take the analog output from the 7i77 because I planned it for x and z control. In the case that PhilipMe has, I have the same servo driver on my diy lathe and it can work in both modes, position and velocity also and torque over 25 13 analog inputs on the driver. in the manual there is a possibility to change the direction...PhilipMe check which parameter is responsible for that, it was a long time ago and I forgot.

AC servos usually have step/dir and CW/CCW and that is settable, in that case 7i96S should be used as step/dir, not 0-10V as it would also control the direction and the only change in hal is from stepgen type 0 to stepgen type 1 or 2, i forgot exactly.

You can wire the 0-10V MESA output through a DPDT relay to the servo controller and wire the REV signal to energize the relay and change the polarity of the 0-10V to the servo controller to reverse the direction.-

  thank you, in my case is analog servo amp for 17kw lathe spindle.