Servo motor systems implement the electronic gear box between the drive motor and tool motor. No differentials or mechanical gears! The registration control monitors drive motor and the process to control the slave motor, keeping the tool operating where you want it.
Control operation is continuous, providing the most precision and fastest control possible.
Proportional Controls
Proportional correction controls operate through a differential to correct bi-directional position errors. Small errors generate small corrections, large errors generate large corrections. This means your process gets back in registration quickly, no matter how large the error. Watch how fast your process recovers from a web splice!
A second output responds to changes in repeat length, automatically compensating for stretch or shrink.
An out-of-registration alarm warns operators who can then make adjustments on the fly.
Set up is straightforward: jog the process into registration in manual mode then switch to automatic. The controller learns the target position and takes over control.
Time-based Controls
Time-based controls monitor tool position and generate a timed correction when the operation moves outside limits. Timing is manually adjustable from the control front panel. The controller also keeps track of consecutive out-of-registration cycles caused by drift, stretch or shrink. A control output reports this condition for operator intervention or machine shut-down.
