Posted to News on 19th Nov 2019, 12:31
Renishaw expands range of functional safety certified encoders
Renishaw is building on its existing functionally safe (FS) portfolio by introducing two new linear and rotary encoders, namely the Resolute FS with the BiSS Safety absolute open optical encoder system, and the Tonic FS incremental open optical encoder system.
The Resolute Functional Safety (Resolute FS) optical absolute encoder is based on the design of the award-winning Resolute series with elements redesigned to meet FS standards.
The Tonic Functional Safety (Tonic FS) optical encoder combines full FS compliance with the exceptional metrology performance, high reliability and other benefits of the established Tonic encoder range.
Both the Resolute FS BiSS Safety encoder and the Tonic FS encoder are certified to ISO 13849 Category 3 PLd, IEC 61508 SIL2 and IEC 61800-5-2 SIL2. Full FS certification is required to guarantee the safe use of functions that include safe stops 1 and 2, safe operating stop (SOS) and safe limited speed (SLS) - all of which require functionally safe encoder feedback. Resolute FS encoders are compatible with the open source BiSS Safety serial communications protocol and Siemens' Drive-CLiQ protocol. Tonic FS encoders are available with the Tonic Ti-000 analogue interface and Dual Output (DOP) interface options.
Renishaw's Resolute encoder is described as the world's most advanced single-track true-absolute optical encoder system delivering up to 1nm resolution, superior long-term reliability, instant operation after power-up without reference return, and high-speed metrology at speeds up to 100m/s.
The Resolute series is well suited for advanced motion control applications and enables smooth velocity control with sub-divisional error (SDE) of
Renishaw's Tonic encoder is designed for highly dynamic precision motion systems, enabling better accuracy, higher speed and greater reliability in a wide variety of demanding industry applications. Tonic readheads incorporate Renishaw's market-proven third generation filtering optics, which is further enhanced by dynamic signal processing including Auto Gain Control and Auto Offset Control. The result is low SDE and low noise (jitter), giving smooth velocity control for improved scanning performance and increased positional stability.
Renishaw will be exhibiting its encoder product ranges at SPS IPC Drives Nuremberg (Germany) from 26-28 November 2019. Visit stand 231 in Hall 4A to talk to Renishaw's experts about functionally safe encoders and your metrology needs. For further information on functionally safe encoders, visit www.Renishaw.com/FSencoders.
