According to Rockwell Automation, the SensaGuard family of RFID-coded, non-contact switches helps reduce machine and wiring costs and offers extended diagnostics for easier troubleshooting. Rockwell also claims that unlike lower-rated switches, these will shut down a machine if a failure occurs before there is a demand on the safety device.The switches are Category 4/SIL 3 rated per EN954-1 and TÜV functional safety approved to IEC61508. The switches are suited for machines where multiple access doors must be monitored up to a Safety Category 4/SIL 3, and contain built-in diagnostic capabilities. The switches do not need a dedicated controller, allowing system designers to use one relay to support the entire safety system, including light curtains, e-stops and non-contact switches. Switches can be connected to a standard safety relay, such as the MSR126, MSR127, MSR200/300 Family, SmartGuard and safety I/O blocks.
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