The GWS -S weigh feeder controller is a compact controller which can accept the analog signal from the load cells and the digital input from a speed sensor. It has an inbuilt PID to run the belt/screw motor at the required speed to achieve optimum accuracy. It compares the set rate to the actual rate computed and controls accordingly. It is a state of the art, easy to use controller with sixteen keys for easy entry of parameter and a large LCD display to view the status and alarm.