 | FASTRACK™ with RESOLUTE™ optical absolute linear encoderFASTRACK is the revolutionary track-mounted linear encoder scale system from Renishaw, with ±5 µm/m accuracy and unrivalled ruggedness. Resolute absolute readheads acquire position immediately upon switch-on and feature 1 nm resolution, 100 m/s maximum speed and very low noise (jitter).
FASTRACK’s modular format makes it compatible with RESOLUTE RTLA absolute scale or TONiC™ RTLC incremental scale, providing a truly flexible system for users serving a variety of customers or markets. RTLA optical absolute linear encoder scaleFASTRACK with RTLA absolute linear scale combines high-accuracy, tape scale convenience and unrivalled ruggedness. Combined with RESOLUTE readheads, the result is surely the ultimate in tape scale encoder systems… RESOLUTE reads a unique single-track RTLA optical scale and offers further attractive benefits to machine designers by acquiring absolute position immediately upon switch-on, without the need for battery back-up. This completely eliminates the need for reference returns. Unique combinations of ruggedness, ultra-high speed and exceptional resolution, mean that RESOLUTE is already attracting high levels of interest from manufacturers of high-speed linear motor systems as well as slower-moving axes requiring the highest levels of precision and motion control integrity.
Sophisticated new optics
RESOLUTE does not follow the conventional technique of using dual tracks side-by-side (one incremental, one absolute) which inherently suffer de-phasing problems when small amounts of angular misalignment are introduced. Instead, this new absolute encoder features a single track, optical absolute scale, combining both the absolute position and embedded phase information into one single code. This technology provides RESOLUTE with far wider set-up tolerances for quick and easy installation and superior long-term reliability, even if the motion axes settle or move over time. To further aid installation and diagnostics, there is an integral set-up LED on the readhead. Please note that only RTLA scales feature a line that indicates orientation of the scale; holding the scale horizontally in front of you, when the orientation line is above the coded graduations, the lowest position value is on the left-hand end of the scale. The orientation line is not seen by the readhead and is not a second track, click on image to see orientation line. Therefore the readhead/scale system maintains the benefits of being a single-track system. Excellent dirt immunity
Variety of protocols available
Continue the tour... find out more about FASTRACK for TONiC optical incremental linear encoder
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RESOLUTE is a true absolute, fine pitch optical encoder system that has excellent dirt immunity, and an impressive specification that breaks new ground in position feedback. RESOLUTE is the world’s first absolute encoder capable of 1 nanometre resolution at up to 100 m/s for linear encoding applications.
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The precision optics give excellent immunity to dirt on the scale, which is further enhanced by extensive redundancy in the scale code. Safety is assured by a built-in separate and independent position checking algorithm. This actively checks every reading, ensuring any potential problem is flagged long before it reaches the controller.
The revolutionary readhead also incorporates a temperature sensor to measure heat build-up giving extra system protection, by signalling an alarm condition if head temperature rises above +80°C. This alarm is in addition to the signal monitoring, position-checking and speed monitoring that is carried out constantly inside the readhead.
