Today, operators on the filling plant’s turntable are not only protected from the hazards of the laser, but also from the drives’ hazardous overrun: the inputs of the dual-channel emergency stop and the OSSD signals of the safety gate systems PSENmlock are connected directly to each other on the myPNOZ, so creating a safety zone, which comprises both the actuator technology – including the powered turntable– and also the laser. The required functionality was entered and ordered via the myPNOZ Creator: five modules in total were required to safeguard the workstation at the turntable – the head module responsible for the safety circuit on the employed emergency stop pushbuttons, an additional input module for the safety gate systems and three output modules for the actuator technology. And – should the requirements on the filling line change in future – myPNOZ can be adapted flexibly at any time. http://www.pilz.com
It was predictable that the planned integration of a new laser in the end-of-line packaging for the glass coffee jars at Haco would entail some risks, because the PNOZ X safety relay that had been used previously could not be adapted to the line’s increased requirements. An alternative expandable, modular solution was therefore to be used. An additional demand: as the plant is in operation almost round the clock, the downtime and associated loss of production was to remain as low as possible. With its new, simple configuration, order and commissioning mode, the modular safety relay myPNOZ offered Haco a rapid, customised safety solution, tailored to their individual requirements and operational almost from the start.