The Functional Safety Integrated (FSI) product range from LEINE LINDE is designed to meet the highest safety standards in industrial automation. These rotary encoders and safety systems are built for environments where reliability and precision are critical—not only for performance but also for protecting people and machinery. With certifications up to SIL 3 and PL e, the FSI range ensures safe motion monitoring across a wide variety of demanding applications.

The FSI range from LEINE LINDE includes the FSI 600, 800, and 900 series, offering scalable safety solutions for industrial automation. While the FSI 600 series delivers SIL 3/PL e certified, absolute encoders with safe fieldbus communication, the FSI 800 series provides heavy duty incremental encoders for safe speed feedback in demanding drive systems. Meanwhile, the FSI 900 series combines motion feedback with an integrated, independent safety system. All three of these FSI series enable reliable, safety-certified motion control across a wide range of industrial applications.

In industrial environments, safety for workers and machines is extremely important. That’s why LEINE LINDE has developed the FSI 608, a robust solution designed for functional safety applications: the absolute multiturn inductive encoder with PROFIsafe interface. Engineered to comply with the strictest safety standards, the FSI 608 offers reliable performance even in the most demanding conditions.

The FSI 862 incremental rotary encoder from LEINE LINDE is certified for use in SIL2 and PLd applications, providing built-in functional safety for your engineering challenge. With a slip-free, hollow-shaft design and a ceramic bearing, the FSI 862 is ideal for motors in high-disturbance environments such as applications in the steel and paper industries. The encoder's built-in safety functions eliminate the need for back-up encoders and additional sensors, thereby saving space, cabling and installation work.