When working with the open, non-contact ultra-compact reading head of the RGH25F encoder, a unique RGS20-S scaled tape with a 20 μm pitch of Renishaw is used, with a resolution of up to 5 nm. The small head RGH25F provides connection of external interpolation means using the REF interface, which allows automatic adjustment of the gain and offset of the signal and provides various diagnostic functions.\n<\/p>\n
\n Characteristics and advantages of the reading head RGH25F <\/b>\n<\/p>\n
\n – Ultra-compact light reading head, ideal for cases with limited space.
\n – The non-contact design provides high speed and reliable operation with zero friction and no mechanical wear.
\n – Easy installation and setup of the reading head due to the presence of a special built-in LED indicator on the interface unit.
\n The optical signal filtering system guarantees high signal stability in conditions that do not allow the use of most open optical encoders.
\n – Electronics with automatic tuning, providing high accuracy and reliability.
\n – Automatic signal gain adjustment (AGC), signal bias (AOC) and balance (ABC) ensures that the cyclic error is minimized (less than \u00b1 50 nm).
\n – The zero mark ensures the repeatability of the initial position, and the limit switches – the automatic signal giving the initiating stop of the moved node.
\nThe zero mark ensures the repeatability of the initial position, and the limit switches – an automatic signal that initiates the stop of the moved node.\n<\/p>\n
\n Scale tape RGS20-S in 20 μm steps
\n<\/b>\n<\/p>\n
\nRGS20-S tape with a pitch of 20 microns is made of a thin flexible steel strip, which is coated with gold to provide high reflectivity and corrosion resistance. This tape can be fixed, using a self-adhesive base, on most materials used in the industry, including metals, ceramics and composites materials.
\n – The tape is supplied on a reel, so you can cut off parts of the desired length, up to 70 m.
\n RGS20-S tape has temperature characteristics corresponding to the characteristics of the substrate on which the tape is attached, which simplifies the process of compensating for the effect of temperature.
\n – A special device is provided for fast and accurate installation of the scale tape (patented).
\n The lacquer coating of the tape is easy to clean and is resistant to external influences that occur when manipulating the tape.
\n You can always cut a piece of any necessary length that optimizes inventory management and minimizes waste.
\n – High accuracy of linearity tolerance of \u00b1 3 μm\/m provides high overall accuracy with simple adjustment procedure.\n<\/p>\n
Specifications <\/b><\/p>\n Ultra-compact reading head RGH25F <\/b>, used in conjunction with various remote interfaces and supporting dynamic signal processing and resolution up to 5 nm!\n
\n Built-in LED head position indicator <\/td>\n \t Yes <\/td>\n<\/tr>\n \n Measuring range, m:<\/td>\n \tup to 50<\/td>\n<\/tr>\n \n Length, m:<\/td>\n \u2014 optical scale RGS20\u2013S \u2014 from 0,1 to 50 (more than 50 m \u2014 by special order) \u2014 optical scale RGS20\u2013PC \u2014 from 1 to 50<\/td>\n<\/tr>\n \n Resolution of digital output signal RS422, nm:<\/td>\n \t5, 10, 20, 50 , 100, 200, 500, 1000, 5000<\/td>\n<\/tr>\n \n Resolution of analog output signal:<\/td>\n \t\u2014 1 Vpp <\/td>\n<\/tr>\n \n Step of the scale, mkm:<\/td>\n \t\u2014 optical scale RGS20\u2013S \u2014 20 \u2014 optical scale RGS20\u2013PC \u2014 20<\/td>\n<\/tr>\n \n Max speed, m\/s:<\/td>\n \t\u2014 for digital output signal \u2014 up to 5 \u2014 for analog output signal \u2014 up to 6<\/td>\n<\/tr>\n \n Clearance between reading head and optical scale, mm:<\/td>\n \t0,8 \u00b1 0,1<\/td>\n<\/tr>\n \n System accuracy at 20 \u00b0 C, μm\/m:<\/td>\n \t\u00b1 15 (\u00b1 3 \u2014 with 2-point compensation)<\/td>\n<\/tr>\n \n Scale option:<\/td>\n \t\u2014 with self-adhesive base\n <\/td>\n<\/tr>\n \n Coefficient of thermal expansion, μm\/m\/\u00b0\u0421:<\/td>\n \t\u2014 corresponds to the substrate material, the ends of the scale are fastened by clamps <\/td>\n<\/tr>\n \n Supply voltage, V:<\/td>\n \t5 \u2013 5 % \u2014 + 10 %<\/td>\n<\/tr>\n \n Current consumption (without load), mA:<\/td>\n \t\u2014 200 <\/td>\n<\/tr>\n \n Material:<\/td>\n \u2014 optical scale RGS20\u2013S \u2014 thin,
\nflexible steel gilded strip with protective lacquer coating \u2014 optical scale RGS20\u2013PC \u2014 thin,
\nflexible steel gilded strip with protective polyester coating
\n for increased resistance to the effects of aggressive chemicals <\/td>\n<\/tr>\n\n Cable:<\/td>\n \t\u2014 flexible, double-shielded, 4.4 mm outer diameter, bending life more than 20×10 6 cycles with a bending radius of 20 mm <\/td>\n<\/tr>\n \n Length of the cable, m:<\/td>\n \t1.5, 3, 5 (connector type D \u2013sub (15\u2013 pin)<\/td>\n<\/tr>\n \n Dimensions of the reading head RGH24 (height × length × width), mm:<\/td>\n 10,5 × 36,0 × 13,5<\/td>\n<\/tr>\n \n Mass, g:<\/td>\n \u2014reading head \u2014 9 \u2014interface \u2014 100 <\/td>\n<\/tr>\n \n Mass of the cable, g\/m:<\/td>\n 34<\/td>\n<\/tr>\n \n Reference mark (zero):<\/td>\n Magnetic actuator (one-way repeatability up to 1 resolution unit)<\/td>\n<\/tr>\n \n Limit switches:<\/td>\n One switch <\/td>\n<\/tr>\n \n Temperature, \u00b0\u0421:<\/td>\n \u2014 process \u2014 from 0 to + 55 \u2014 storage \u2014 from \u2013 20 to + 70 <\/td>\n<\/tr>\n \n Degree of protection:<\/td>\n \t\u2014 reading head \u2014 IP40 \u2014interface \u2014 IP20<\/td>\n<\/tr>\n \n Maximum humidity (without compensation), %:<\/td>\n \t\u2014 process \u2014 80 \u2014 storage \u2014 95<\/td>\n<\/tr>\n \n Process acceleration, m\/s 2:<\/td>\n \t500<\/td>\n<\/tr>\n \n Impact (in non-operating state, 6 ms, half-sinusoidal impulse), m\/s 2:<\/td>\n \t1000<\/td>\n<\/tr>\n \n Vibration (in operation mode, at, at 55-2000 Hz), m\/s 2:<\/td>\n \tnot more than 100<\/td>\n<\/tr>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"
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