Wieland Electric adds RFID-enabled STS switches to safety sensor portfolio

Aug. 3, 2016 – Wieland Electric has expanded its family of sensorPRO contactless safety switches with a range of new RFID-coded sensors that promise “flexible protection against unauthorized access or manipulation for machine operators and equipment.”

The RFID-enabled STS series safety switches are available in three coding options: Unique, which exclusively accepts input signals from its factory-paired actuator; Fully-Coded, which can be programmed to accept input from a specific STS actuator; and Coded, which can accept input from any STS actuator, explains Wieland. The devices can be used as stand-alone safety switches or wires in series (cascaded) in sets of up to 30 sensors. The series is rated for IP69K protection for use in harsh environmental conditions, including high pressure and high temperature wash-down applications. Available in two flush-mountable housing sizes — STS 01xx (36mm x 26mm x 13mm) and STS 02xx (88mm x 25mm x 13mm) — with standard M12 connectors or pre-wired cables, the switches are rated for 24Vdc input voltage, and feature two OSSD (output signal switching device) output circuits rated for 400mA, and a 50mA diagnostic circuit.