The material, such as cardboard for example, is used as a protective measure. Two optical sensors are used to detect whether there is sufficient material in the magazine. If the number of cardboard blanks falls below the permitted amount, the sensors signal this status to the small controller PNOZmulti 2. The outputs on the PNOZmulti 2 shut down the machine until sufficient cardboard is once again in place. If you are looking for a ready-to-use solution, you can use the modular safety relay myPNOZ as an alternative to the PNOZmulti 2.
In your application, do you need to monitor whether a movable guard is in a pre-defined position: for example, the packaging material in a packaging machine’s cardboard magazine? If there is sufficient packaging material in the cardboard feed magazine, then it is impossible for the operator to reach into the danger zone and injure themself while the machine is running. http://www.pilz.com
When an error occurs or a detection zone is violated, the configurable, safe small controllers PNOZmulti 2 initiate a safe, reliable response. PNOZmulti 2 ensures that any movement is stopped in a controlled and therefore safe manner. The small controller PNOZmulti 2 guarantees the safety of human and machine in many industries, safety solutions provider since 2011.