Typical applications include packaging, filling, transfer conveyors, wicket ovens, flighted conveyors with cleats or pockets, and overhead chains with hooks or grippers. The Lead and Follow machines may be of similar construction, or may be completely different designs, with different motor drives, gear ratios, or process functions.

The CX-1200 uses four 4 basic signals. An encoder device on each machine gives high resolution speed information, and also provides a tracking signal to assist the position control. Two marker pulses (photo eyes, or prox switches) give precise positional information. These synchronization pulses, also called job-space markers, permit automatic alignment of the correct machine phase or position lock. The follower machine can start/stop with the lead machine, or it can be started at random into a “running lead” and still achieve synchronization.

CX-1102

Dual Axis Unwind/Dancer/Wind

and PLC Control

Powered unwinds and powered rewinds are controlled from axle mounted motors, (center 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 can not keep pace. Line Speed commands can be bipolar, or forward/reverse. Dual output, separately isolated drive command signals work with AC/DC/Regen/Vector/Servo motor and drive combinations (or brake controller).