Broken tool detection control unit 28300

ELTEX control unit 28300, 28301 for ELTEX logic current weft sensors General description The 28300 electronic board is a control unit and power supply used for Eltex weft break sensors with logic current output (E-type). It is designed to fit into the Eltex metal box or into the control box of the weaving machine. It can also be used when existing weft sensors of analogue types are replaced with E-type weft sensors. In that case the 28300 board is fitted instead of the old control unit. Advantages With the Eltex logic current system the following advantages will be attained: • ANTI-function: This weft stop motion can detect if too many yarns are inserted simultaneously by mistake. • The E2070 weft sensor can easily be set up for many combinations of mixed single and double weft insertions, still with ANTI-function. • It is also possible to detect three and four wefts moving at the same time, using only one E2070 weft sensor and still with ANTI-function. • The logic current system is very insensitive to electrical and mechanical interferences • Any of the existing Eltex weft sensors with logic current output can be connected to the 28300 board, for example E2016, ANTI, E2010-2 and E2070. • The 28300 board has the same size and connections as the Eltex boards for analogue weft stop motions. When a weft stop motion is updated with a weft sensor with logic current output and this board, only the cable for the weft sensor must be rewired. • Two weft sensors can be used with one control unit. The wires from the second weft sensor is connected in parallel to the first one.