Feedback Scale General Catalog Feedback scale Magnescale Co., Ltd. Shinagawa Intercity Tower A-18F, 2-15-1, Konan, Minato-ku, Tokyo 108-6018, JAPAN Headquaters : 45 Suzukawa, Isehara-shi, Kanagawa 259-1146, Japan TEL.+81 (0)463-92-1011 FAX.+81 (0)463-92-1012 Tokyo Office : 45 Suzukawa, Isehara-shi, Kanagawa 259-1146, Japan TEL.+81 (0)463-92-7972 FAX.+81 (0)463-92-7978 Nagoya Office : 2-35-16, Meieki, Nakamura-ku, Nagoya Aichi, 450-0002, JAPAN TEL.+81 (0)52-587-1823 FAX.
C o n t e n t s Contents .................................... 02 PL20C/PL25 .......................... 40 What is Magnescale? .................. 04 PL81/PL82 ............................. 41 Selection Guide .......................... 06 SL700 Series ......................... 42 Measurement Principle ............... 08 PL101..................................... 43 Measurement Accuracy .............. 12 Digital Scales (Rotary scale) ........ 45 Installation Method...................... 14 RU77 ...
What is Magnescale? The advantage of scales A scale is mainly used for machine tools and detects the position of a component such as the stage to which it is installed. Feeding back position information from the scale eliminates errors caused by the following and enables more precise machining to be accomplished.
Selection Guide Measurement length (ML: mm) 70mm-2,040mm Accuracy 3+3ML/1,000μmp-p 5+5ML/1,000μmp-p Resolution 0.01μm, 0.05μm, 0.1μm, 0.5μm, 1μm Linear scale 140mm-3,040mm Rotary 6 360° 3+3ML/1,000μmp-p 5+5ML/1,000μmp-p ±2.5second 0.01μm, 0.05μm, 0.1μm, 0.5μm, 1μm Maximum output pulse counts 225=33,554,432p.p.r Output signal Type Absolute serial bidirectional signal SR77 Incremental serial bidirectional signal SR75 A quad B signal Ref. point.
Measurement Principle approximately 120 kA/m. The magnetic media form a strong coated surface resistant to cutting fluids and strong alkaline solutions through a hardening process after coating. Magnetic powder Magnetic metal powder used for data storage systems because of its high density and reliability Br: 0.2 to 0.25T, Hc: Approx.
Incremental signal Absolute signal An incremental signal is taken as the source of scale performance and does not have absolute positional information of length longer than the wavelength. In magnetic scales, the S and N poles are regularly arranged at wavelength intervals. An M code is a code string consisting of two values (0 and 1) known as M sequence and is a cyclic code whose period is N = 2n-1. Where “n” is the order of a primitive polynomial that generates an M code.
Accuracy The grating of an incremental signal and the bit information of an absolute signal of the scale are written to a magnetic track using the recording head. For the recording head position during this write, the writing position of each signal is determined based on the Traceability position information of a light-wave interferometer using the He-Ne stabilized laser. Therefore, the position of each signal on the recording head (= accuracy) can be determined very accurately.
Installation method Linear Scale SR87 Scale and slider installation notes · Do not turn on the power before installing the scale. · Install the scale with the opening on the scale unit facing downward. If the opening cannot be turned downward, it should face horizontally. Never install it facing upward. (Fig. 1) · Remove off the coating around the tap hole to ground the scale unit using the installation surface contact with the scale.
Linear Scale SR77 Scale and slider installation notes · Do not turn on the power before installing the scale. · Install the scale with the opening on the scale unit facing downward. If the opening cannot be turned downward, it should face horizontally. Never install it facing upward. (Fig. 1) · Remove off the coating around the tap hole to ground the scale unit using the installation surface contact with the scale. · Be aware that the scale will be damaged if slider moved outside the measuring length (ML).
Rotary Magnescale Installation Installation Dimensions and Tolerance Make preparations so that the rotary magnescale installation surface dimensions and tolerance have the values shown in the figure below. Installation Preparation Transport plate is used to secure the scale unit and scale shaft so that excess vibrations are not applied to the scale shaft during transportation. Before installing the rotary magnescale, be sure to remove the transport plate. Installation nut (Obtained by the customer.
Mechanical Specifications Installation Procedure 1. Check that there is no dust or scratches on the rotary magnescale installation surface. Check that there are no indentations, rust, or scratches on the machine shaft where the rotary magnescale will be installed. Completely wipe off any dust and dirt on the machine shaft. 2. Insert the rotary magnescale gently into the machine shaft.
SR87 Specifications Model This robust type magnetic absolute scale system that outputs position signals for machine tools and other equipment that require high-precision positioning.
24 L1 278 378 478 578 678 778 878 978 1078 1178 1278 1378 L2 200 300 400 500 600 700 800 900 1000 1100 1200 1300 n 3 4 5 6 7 8 9 10 11 12 13 14 ML 1340 1440 1540 1640 1740 1840 2040 2240 2440 2640 2840 3040 L1 1478 1578 1678 1778 1878 1978 2178 2378 2578 2778 2978 3178 0.05 0.1 MG MG n 3 4 5 6 7 8 9 10 11 12 13 14 ML 1340 1440 1540 1640 1740 1840 2040 2240 2440 2640 2840 3040 L1 1478 1578 1678 1778 1878 1978 2178 2378 2578 2778 2978 3178 0.05 78 0.05 0.1 MG 3.5 (9) 0.1 19±0.1 48.5 5±0.2 13.
SR84/85 Specifications Model This robust medium type magnetic scale system that outputs position signals for machine tools and other equipment that require high-precision positioning.
28 L1 278 378 478 578 678 778 878 978 1078 1178 1278 1378 L2 200 300 400 500 600 700 800 900 1000 1100 1200 1300 n 3 4 5 6 7 8 9 10 11 12 13 14 ML 1340 1440 1540 1640 1740 1840 2040 2240 2440 2640 2840 3040 L1 1478 1578 1678 1778 1878 1978 2178 2378 2578 2778 2978 3178 0.05 0.1 MG MG n 3 4 5 6 7 8 9 10 11 12 13 14 ML 1340 1440 1540 1640 1740 1840 2040 2240 2440 2640 2840 3040 L1 1478 1578 1678 1778 1878 1978 2178 2378 2578 2778 2978 3178 0.05 78 0.05 0.1 MG 3.5 (9) 0.1 19±0.1 48.5 5±0.2 13.
SR77 Specifications Model This slim type magnetic scale system that outputs position signals for machine tools and other equipment that require high-precision positioning.
32 L1 208 258 308 358 408 458 508 558 608 658 708 758 858 L2 185 235 285 335 385 435 485 535 585 635 685 735 835 L3 − − − − − − − − − − − − 417.5 L4 − − − − − − − − − − − − − L5 − − − − − − − − − − − − 417.5 n 0 0 0 0 0 0 0 0 0 0 0 0 1 ML 770 820 920 1020 1140 1240 1340 1440 1540 1640 1740 1840 2040 L1 908 958 1058 1158 1278 1378 1478 1578 1678 1778 1878 1978 2178 L2 885 935 1035 1135 1255 1355 1455 1555 1655 1755 1855 1955 2155 L3 442.5 467.5 517.5 567.5 627.5 677.5 727.
SR74/75 Specifications Model This slim type magnetic scale system that outputs position signals for machine tools and other equipment that require high-precision positioning.
36 L1 208 258 308 358 408 458 508 558 608 658 708 758 858 L2 185 235 285 335 385 435 485 535 585 635 685 735 835 L3 − − − − − − − − − − − − 417.5 L4 − − − − − − − − − − − − − L5 − − − − − − − − − − − − 417.5 n 0 0 0 0 0 0 0 0 0 0 0 0 1 ML 770 820 920 1020 1140 1240 1340 1440 1540 1640 1740 1840 2040 L1 908 958 1058 1158 1278 1378 1478 1578 1678 1778 1878 1978 2178 L2 885 935 1035 1135 1255 1355 1455 1555 1655 1755 1855 1955 2155 L3 442.5 467.5 517.5 567.5 627.5 677.5 727.
SL331 PL60 SL Magnescale ® Non-contact, detection and a high response speed • Magnetic principle • Excellent resistance to workshop conditions (IP65). Resistant to oil, dirt, vibrations and shocks. Read head resistant to external magnetic field. • Accuracy: (15 + 5L/ 1000) μm (L=measuring length in mm) • Resolution: SL331 with PL60 5 μm,10 μm • High response speed: 250 m/min with a resolution of 5 μm • Measuring lengths of up to 8 m / 314.
PL20C/PL25 PL Magnescale ® PL81/PL82 PL Digiruler ® Head cable unit • Output signal: AB quadrature signal, compilant with EIA-422 • Resolution: 10 μm • Max. response speed: 300 m/min (varies with the read head and settings). • Excellent resistance to workshop conditions (IP65). • Resistant to oil, dirt, vibration, and shock.
SL700 Series SL Magnescale ® Scale unit • Compact ribbon type scale for easy mounting in cramped spaces • Non-contact detection • Magnetic detection system with excellent resistance to dust, oil, vibrations and shocks. • Effective length from 50 mm to 100,000 mm • Detects linear displacement and produces analog or AB quadrature signal output when connected to PL101 head and MJ500/600/620 Series interpolator (both sold separately). Three types are available with different reference point specifications.
Digital Scales Rotary scale RU77 RS310 44 45
RU77 Specifications Model High precision absolute rotary type with exellent resistance to environments. RU77-4096AXX Output signal Absolute serial (2/4 duplex: Compliant with EIA-422) Detection system Magnetic system (MR sensor) System accuracy (at 20 ˚C) ±2.5" Resolution Approx.2.5°/1,000 - Approx.
RS310 RS Magnescale ® Incremental Rotary scale for feedback applications • Magnetic principle • Excellent resistance to workshop conditions. Resistant to oil, dirt and vibrations. • Thin design • Directly mountable onto a machine's rotary shaft. Large-diameter scale drum that can be used for large-sized machines such as turning centers. • Easy installation • Noncontact. Clearance: 0.1 mm/ 0.
MJ100/110 MJ MJ High response speed interpolator unit for position control • Capable of 40 to 1000 divisions • Produces AB quadrature signals with a resolution from 2 μm to 125 μm, when used in combination Compact one-axis module with analog input port • Divides analog input signal into 32 to 800 divisions.
MJ820/821 MJ MJ Generalized interpolator with serial-interface output for FANUC CNCi series and its successor models MJ830/831 Interpolator for Mitsubishi MR-J2 Super Series amplifier • Connectable to any general analog-output encoder. Input impedance: 120 Ω 1 Vp-p voltage differential input • Max.
List of Adopter Cables Protocol Standard Output Connector type on controller side Spread-out end Spread-out end A quad B signal Mitsubishi 3M 10P Model: Receptacle: 36210-0100PL Shell kit: 36310-3200-008 Straight line scale use ABS and INC serial (SR80,SR70,RU77 Series) Provision of grounding wire Not provided Provided Not provided _ L M A quad B signal E _ _ F Standard CH33-＊＊○▽ For relaying (JN2DS10SL2-R) CH33-＊＊○▽ZA Standard CH33-＊＊○▽L Scale-side connector A: Circular connect
Connection Cable for Feedback scale Safety [ linear Scale ] Scale Head Interpolator PL25 CE08-1/3/5/10/15 CK-T12/13/14/15/16 MJ100/110 PL80 - - SL331 PL60 CE08-1/3/5/10/15 CK-T12/13/14/15/16 MJ100/110 SL700 PL101 CE08-1/3/5/10/15 CK-T12/13/14/15/16 MJ500/600/620/700 MJ820/821 MJ830/831 SL110/130 DIGIRULER® Cable No compromise for high-accuracy products The total quality control system that operates throughout the entire design and production process ensures products with enhanced saf
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