Function
The Master-Slave guiding is used when two material webs have to be guided together precisely to the edge (laminating control). In doing so, the positions of both material webs are detected by two edge sensors or two CCD cameras.
Sensor 1 detects the position of the unguided Master web (guide web) and sensor 2 the position of the guided Slave web (following web). If the Master web moves laterally to the web running direction during production, the control simultaneously guides the Slave web by the respective adjusting movement of the guiding device. In this way, the control keeps the distance (offset) of both web edges constant or ensures that both web edges are positioned precisely over one another (distance of the web edges = 0).
