Data sheet-RESM angle encoder [English].pdf

Data sheet L-9517-9154-04-A The RESM is a one-piece stainless steel ring with 20 μm scale marked directly onto the periphery, featuring the IN-TRAC TM auto-phase optical reference mark. The RESM offers impressive accuracy with resolution to 0.00075 arc second, suiting the most demanding precision applications. Read by Renishaw’s new and established encoder systems, it has high tolerance to dirt, scratches and greasy fingerprints that can cause other encoder systems to miscount. The low profile RESM, with large internal diameter, is easy to design into most installations. Equally important, its low mass, low inertia design does not compromise system performance. Available in a wide range of sizes and line counts, providing compatibility with industry standard controllers. System features ? Compatible with the new encoder range and the established system to offer industry standard analogue or digital incremental outputs ? IN-TRAC bi-directional optical reference mark ? High speed operation, up to 4 591 rev/min (12.5 m/s) ? Graduation accuracy to ± 0.5 arc second (550 mm ring) ? Low-noise analogue 1 Vpp version ? New high-resolution, 2 and 1 nm digital versions ( only) ? Angular resolution to 0.00075 arc second ? System repeatability to 0.00225 arc second ? Patented taper mount simplifies integration and minimises installation errors ? Large internal diameter for ease of integration ? Available in sizes from ?52 mm to ?550 mm with line counts from 8 192 to 86 400 ? Custom sizes also available ? Low mass and low inertia ? Ultra-low inertia versions also available ? Integral set-up LED on readhead for quick set-up and instant ‘health check’ at any time ? Dual limits ( only) RESM angle encoder 0.5 x 45° 2 positions 10 6 Scale 3 2 15° ± 0.2° Note: θ is the angle between one tapped hole and the adjacent clearance hole. For example, the angle between two clearance holes is 2θ. Section A-A Instal