The machine stop motion devices of the group of lower yarn detectors UFW are installed above the yarn guides and radially offset. Basically, the machine stop motion devices are constructed for two different application areas:
In-line (traditional) stop motion device: With the in-line version, the yarn runs vertically through the eyelets. They have been designed to initiate a machine stop when the yarn breaks or there is insufficient yarn tension.
Inclined stop motion device: With the inclined version, the yarn runs diagonally through the eyelet. Yarn break and insufficient yarn tension initiate a machine stop.