Utilising the same display features as indicators, all of the unwind controllers incorporate extra features like “SOFT START” to prevent tension transients when starting the machine, and “PARK” to prevent the unwind reel from rotating during machine stop.
The required tension is simply set by the operator. For the analogue versions, this is a rotary front panel control. Digital versions use front panel “UP/DOWN” tension setting push buttons. The actual running tension is continuously and accurately displayed, providing important production information.