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Protección mediante cortina y escáner láser de seguridadProtection through curtain and safety laser scanner
In this application an operator places the small pieces, strips, screws and parts of Union and they are welded forming a part of the body, using a robotic welding cell. The process begins when the parts of the body are placed and are fixed on the turntable; the Bureau then turns 180 degrees where welded automatically. Once completed, the turntable again to rotate 180 degrees and the process repeats.
To protect the workers of the dangerous movement of the turntable and the process of welding and parts, welding cell must equip itself with appropriate security systems. All devices can be monitored through a BUS safe getting thus "safe" information in real time.
Realization
The protection was conducted through the curtain of security C 4000 and the S 3000 safety laser scanner. If the worker access to the dangerous area, is interrupted the beam of the safety curtain, thereby stopping the rotating movement of the Bureau or the welding process. To protect the area between the turntable and the safety curtain, installed a scanner laser safety. This device ensures that access to the rear area of the C 4000 safety curtain is not possible. As it is possible to program the area of exploration of the according to the needs of the application security scanner, not rectangular area between the turntable and the safety curtain, can be monitored in its entirety. Two sensors of security, as well as emergency-stop switches and other sensors are in this case installed in the node of the BUS: EU 4100. The entire application is resolved using a BUS node.
Advantages of the application
Thanks to the combination of the curtain of security and the laser scanner, gets a complete protection of the turntable of the robotic cell. The programmable laser scanner allows a flexible adaptation to the area of protection. The C 4000 and S 3000 safety devices have a communication interface which can be connected with the EU 4100 BUS Intelliface interface node. The devices can be monitored from the checkpoint using diagnostic software CDS without using additional diagnostic systems.
Optoelectronic devices remain independent of the selected evaluation unit, in other words, the safety laser scanner and the safety curtain can be reused for a conventional safety relays through solution and also a more advanced solution through a safe of a system of BUS nodethus eliminating additional investment in hardware to adapt the system to the changes.
