High-current, HTL encoder for functionally safe drive applications from Leine & Linde

The new FSI 800 series rotary encoders from Leine & Linde are particularly useful in functionally safe, rugged motor drive applications. Well known for their robustness and reliability, these Leine & Linde encoders come complete with HCHTL (high-current HTL) signals that also make them suitable for high-disturbance environments, providing long cable lengths, and are certified for use in SIL2/PLd applications.

Up until now, most industries have had no other choice than to use 1 Vpp encoders for any kind of safe application where redundancy is required and met in a single unit. But the 1 Vpp signal is not suitable for all installations, especially not for those with a need for long cables or those that are subjected to electromagnetic disturbance, which is often the case in heavy industry. This new FSI 800 encoder series takes up less space, needs less cabling and lives up to high performance and robustness requirements. It’s within these heavy industry-type settings that this certified HCHTL encoder excels.

The FSI 800 series is highlighted by a hollow shaft encoder called the FSI 862, which was been developed for certification in accordance with EN ISO 13849-1, EN 61800-5-2, IEC 61508 and IEC 62061, thus, allowing the encoder to be used in Functional Safety applications up to risk level SIL2 and PLd, Category 3. As a guarantee for safe installation, the hollow shaft encoder model is equipped with a keyway, to be matched with a shaft with a key. By this slip-free solution, the encoder is mechanically secured to the shaft, and will always detect even the smallest movements with certainty.

For more information, visit www.leinelinde.com.