New from Allen-Bradley Guardmaster is the Sensaguard family of coded non-contact interlock switches based on RFID technology.
Suitable for EN 954-1 Category 4 and EN 62061 SIL 3 applications, the switches are intended for machine guarding where part or full body access is possible.
The switches are particularly suited to machines where multiple access doors must be monitored, as they can be connected in series without compromising the safety integrity.
Featuring the latest generation of RFID technology for coding, and inductive technology for sensing, Sensaguard's large sensing range and tolerance to misalignment are cost-effective for a wide range of industrial safety applications.
Sensaguard switches can be connected to many types of standard Allen-Bradley Guardmaster safety relays via two safety PNP outputs and one auxiliary PNP output. These include the Minotaur MSR126, MSR127, MSR200/300 family, Smartguard and safety I/O blocks.
Multiple actuator sizes allow for a large sensing distance - typically 15 to 25mm. Both plastic and stainless steel versions carry an IP69K environmental rating and come with electronic short-circuit and over-voltage protection built-in.
The stainless steel version is particularly suitable for use in hygiene-conscious, harsh or high-pressure washdown environments typically found in the food and beverage and life science industries. Other typical applications for include packaging, materials handling, printing, fibre and textiles.
Sensaguard uses standard-sized M18 mountings and proximity switch brackets, making it easy to retrofit to existing installations. LED indicators located on the switch body give a visual indication of door status, and extended built-in diagnostics ease troubleshooting. A wide range of other Allen-Bradley Guardmaster safety devices - such as light curtains, emergency stop switches and interlock switches - can also be easily connected in series.
For more information, visit www.ab.com
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