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

should I configure the servo motor as a spindle and configure the encoder as spindle encoder

or

set the servo motor as main axis number 3 (x being zero, y is 1 and z is 2) and configure the encode pins as main axis encoder.

Good day

Philip

tommylight wrote:

 

But, does the servo use step/dir or analog input?
 

Unfortunately I have no manual. I searched the internet and could not find a picture of the same. When I posted this thread I thought, ac servo are equipped with both step/dir and analog. Now I will have to find the manual from Aliexpress or try to map the db25 before I can proceed.

The manuals that I found over the net maybe very close to what I have indicate that it has analog signals. It has three control modes, position, speed and torque.

Many thanks

Philip

tommylight wrote:

Position mode = step/ dir or same as a simple stepper system
Speed mode = velocity mode = analog input of +-10V <<< notice + and -
Torque mode = avoid using this, it requires doing stuff
-
For use with Mesa 7i96S the best would be using the position mode.
Notice of the above notice about + and - , Mesa 7i96S has an analog output that does 0-10V, that is not the same as +-10V.
0-10V on Mesa will work with +-10V drive, only in one direction, so check the manual if the drive has also an input that can change direction.
 

Excellent
I will take into consideration

many thanks

 

I am glad I finaly got the manual in the attachment

I dont see analog input to the controler 

 

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.