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FEATURE ROBOTICS


SICK makes safe robots more productive


The monitored area is configured with two field sets, each with a non-safe warning field and a safety-rated protective field


so that the robot can be slowed to a safe speed as a person enters the warning field and approaches the robot but can still be stopped safely when the protective field is infringed. If the risk assessment allows it, when the


person leaves the hazardous area, sequence monitoring can be implemented, so that the robot is first started up at a reduced speed and then returns to its original working speed once all the warning and protective fields are free. As a result of this dynamic field


switching, stop times are reduced and the operator’s work flow is uninterrupted. However, the worker is still fully protected against hazardous movements in proximity of the robot’s working range. Minimising stops also reduces machinery wear, leading to less maintenance and improving the total cost of ownership. Seb Strutt, SICK UK’s senior product


T


he ability for robots and people to work in closer proximity holds the


promise of ever-more flexible production in automated manufacture. But, while identifying more cooperative human robot applications may be easy, integrating equally-simple safety solutions that protect workers without losing productivity has proved more challenging. As a technology leader in machinery


safety for more than 60 years, SICK has responded with a simple to implement and regulatory-compliant safety protection system, SICK Safe Robotics Area Protection, enabling unrestricted safe access to fenceless robots. The SICK Safe Robotics Area Protection


solution is ideal for both machine builders and for production teams looking to boost the productivity of their existing robots or automate new processes such as machine tending, pick and place assembly and materials loading and unloading. SICK Safe Robotics Area Protection is a


20 DECEMBER/JANUARY 2019 | IRISH MANUFACTURING


convenient and easily-integrated safety system for cooperative human robot applications that satisfies Performance Level PLd/SIL2 in accordance with EN ISO 13849-1/EN62061. The robot standards EN ISO 10218-1 and EN ISO 10218-2 state that safety-related parts of control systems should be designed so that they achieve PLd/SIL2 unless the results of the risk assessment determine otherwise.


DYNAMIC PROTECTION The unique turnkey solution integrates a SICK safety laser scanner with a SICK Flexi Soft controller to enable dynamic protection of the monitored area. The result is unrestricted access to the robot, for example to allow someone to inspect the operation of the robot or machinery, or to insert or remove workpieces. The monitored area is configured with


two field sets, each with a non-safe warning field and a safety-rated protective field. The field sets are programmed to be selected dynamically,


manager for machinery safety said: “SICK Safe Robotics Area Protection lays the foundations for industrial robots to be more productive. Comprehensively tested as a single-source solution it is ready to use in no time at all. By supplying with factory configured and tested software function blocks, SICK enables the system to be integrated with ease and to fit seamlessly into the controllers of all standard industrial robots. “The opportunity to redeploy robots


around the factory demands an adaptable system. So, the Safe Robotic Area Protection system’s versatility is a standout feature that both adapts to new working situations and takes account of non-safe automation and safety-related functions being carried out simultaneously. If other safety devices are added, or additional safety functions become necessary during operation, these can be integrated with ease – making the Safe Robotics Area Protection safety system even more of a sound, future- proof investment.” The SICK Safe Robotics Area


Protection Package comprises either a SICK microScan3 core with 5.5m radius fields for larger areas, or a S300 mini remote for 3m radius fields, with a SICK Flexi Soft modular controller.


SICK www.sick.com T: +44 (0) 1727 831 121


/ IRISHMANUFACTURING


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