The count value depends on the resolution of your motor. Set it to be the maximum counts you want your motor to travel while responding to the signal sent for auto-tuning. Take a look at the following tutorial for more detailed information on servo tuning: http://zone.ni.com/devzone/conceptd.nsf/webmain/4B7775373E4AE64986256B6000691505
Hope this helps - Julie S Applications Engineer National Instruments
