: The update addressed previous "unrealistic" functional safety fault protection requirements that were nearly impossible to comply with in real-world engineering, making the standard more practical for manufacturers. Optional Safety Functions (Annex A) : Beyond basic detection, the PDF includes
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Specifically, it addresses . An ESPE is a device designed to sense the presence of a person (or part of a person) and send a stop signal to the machine's control system to prevent injury. The most common examples of ESPEs are: The most common examples of ESPEs are: Specifies
Specifies marking, wiring, and interface to machine control (e.g., OSSD outputs must be able to switch 200 mA at 24 V DC minimum). and interface to machine control (e.g.
Response time, normal operation cycles, and sensing function accuracy.