How to select and integrate multi-dimensional safety systems to protect workers from cobots Written by Jeff Shepard
Safety is essential when deploying collaborative robots (cobots), autonomous mobile robots (AMRs), and autonomous guided vehicles (AGVs) in factories and logistics facilities. It’s also complex and multi-dimensional. Machine movements need to be monitored and controlled per International Organization for Standardization (ISO) 13849, International Electrotechnical Commission (IEC) 62061 and IEC 61800-5-2 that provide safety requirements and guidance on the principles for the design and integration of safety-related parts of control systems (SRP/CS).
cobots, AMRs, AGVs, and similar equipment often requires the establishment of a layered safety envelope with multiple fields from initial detection and warning of approaching objects to identify when an object breaches a hazardous zone and stops the machine. A modular safety controller system can add another layer of analysis and protection. Efficient and quick fault analysis can be an important consideration when dealing with protective field interruptions and unexpected tripping of a scanner. That can require a second sensor to monitor the protective field of the primary sensor.
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