Banner Engineering: SI-RF Series Safety Switches

By using RFID technology, SI-RF Series safety switches can monitor the mechanical guards that separate employees from hazards—either alone (to protect single machine access points) or in a cascade series (to protect multiple access points in a more simplified manner).

Whether they’re used alone or in a series, the safety switches have been able to achieve Category 4, PL e or SIL CL 3 safety ratings.

They feature an RFID safety sensor that can determine whether RFID coded actuators, which are installed on guards, are absent, present or moved.

Any potential detected faults help ensure operations are conducted as safely as possible.

Company Description:

SI-RF Series safety switches utilize RFID technology to monitor doors, gates, and other movable mechanical safeguards that separate personnel and equipment from a hazard.

They will send a signal to the machine control system to prevent or stop hazardous situations when the guard is not in the proper position.

• Single and cascade models available to protect one or multiple entry points
• Status and performance data from each sensor in a cascade chain is available using In-Series Diagnostics (ISD) and can be accessed with an HMI or similar device
• On-sensor LED indicator provides at-a-glance status information
• Cascade up to 32 sensors in a series using a standard 4-wire cable with M12 connectors, T-adapters, and an end plug
• Tamper resistance to meet the needs of any application with unique, high, and low code models
• Achieves Cat 4, PL e, or SIL CL 3 safety ratings alone or in a cascade chain
• Rugged, IP69 construction withstands exposure to high-pressure, high-temperature washdown
• High tolerance (10 mm) to misalignment enables reliable performance in challenging industrial environments where machine vibration and impact are possible