Servo tune with analog input (no encoder)

[otilia]

I have a PXI-7340 motion controller and MID-7654/7652 Drive connected to a servo motor. As position information I use an analog signal, no encoder (it has to work in a radioactive zone and an encoder wouldn't resist). Can someone tell me how to find the PID coefficients in MAX and also where I can see the position information in MAX ? I use Servo Tune manually but no results .. the red line is always flat and the motor doesn't move;

thanks for any help,

otilia

[ThiCop]

Hello,

Have you taken a look at the following link?

http://digital.ni.com/public.nsf/allkb/19668AB2D4997F3D86256E940082F1EF

Message Edited by ThiCop on 04-23-2010 06:55 AM