• Contrex Inc

Unwind/Wind Control

The CX-1102 is a dual axis controller for unwind/dancer/wind applications. It is specifically designed for the web handling industries. It has pre-engineered algorithms for most of the popular machine configurations. Powered unwinds and powered rewinds are controlled from axle mounted motors, (centre driven), and axle mounted encoders. The controller does not require surface sensing encoders, therefore simplifying machine design. It will calculate the diameters automatically, and then determine the proper RPM speed of the axles to achieve the desired constant surface speed. Since both ends of the machine are controlled from a single CX-1102, the operation is smooth and coordinated. Automatic coordinated dancer load-up, run, stop, live zero state, and dancer unload sequences are all available. Line speed is automatically rolled back if a small diameter roll cannot keep pace. Line speed commands can be bipolar, or forward/reverse. Dual output, separately isolated drive command signals work with AC/DC/Regen/Vect