Allen-Bradley Guardmaster SensaGuard switches with RFID capabilities

The Allen-Bradley Guardmaster SensaGuard range of switches provides secure safety switching, diagnostics and monitoring in one compact package. Combining the technology of RFID coding with an M23 safety distribution block, the unit is claimed to simplify the integration of multiple sensors.

The latest in RFID coding provides an additional level of security, allowing the switch and actuator to be paired with a specific code. This enhances safety by reducing the possibility of other actuators being used to bypass the switch. The switch is paired with an actuator on initial power-up and can be locked to this unit immediately. If some flexibility is required, the switch can be re-paired to another actuator up to eight times. After the 8th time, it is locked to the last-paired actuator. The switch can be locked to a specific actuator permanently anytime during the pairing process.

Available with either four or eight ports, the M23 safety distribution block facilitates the direct local connection of M12, 8-pin SensaGuard safety products. The safety distribution block provides the ability to connect up to eight SensaGuards to meet Cat4/SIL3/PLe, with an individual auxiliary contact from each device going back to the control panel.

Following certain installation requirements, the M23 safety distribution block also allows connectivity of other devices via dry contacts to products such as e-stop or OSSD transistor outputs for light curtain applications.