Application Background:
The explosion of the TFT/LCD industry has led to a dramatic increase in the demand for parallel moving patterns on gantry machines. A gantry stage typically carries multiple line scan CCD sensors, and, in some applications, also carries heavy glass fortransportation.
The Challenge:
To meet the needs of the application, system designers need to choose appropriate motion controllers to achieve parallel movement patterns with linear motors or servo motors.
The solution:
The PCI-8253/8256 leverages ADLINK softmotion technology, a 250 MHz DSP, and a 20 MHz encoder rate to provide faster servo update rates up to 50 �gs/axis and advanced control features. The PCI-8253/8256 not only realizes gantry control with closed-loop and error handling, but also adopts feed-forward gain to reduce speed profile following errors to provide precise velocity and position control.
