Hi Devendra,
Are you using a National Instruments Motion Controller? If so, the driver ships with a LabVIEW program that will allow you to input an X and Y position (Two Axis Vector Move with position monitor). You can easily add a maximum speed input by using the Load Velocity VI. The motion controllers have an onboard PID controller that will take care of the control loop for you. As a result, you merely need to set the target position.
If you aren't using NI Motion, what device are you using to send the signals to your motor? You may be able to implement a control loop in LabVIEW, although I am not sure on the details regarding communication with your motor.
Hope this helps,
Robert
