Renishaw ATOM Installation Manual
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Renishaw ATOM Installation Manual

Linear encoder system
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Installation guide
M-9693-9723-07-A
ATOM
linear encoder system
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www.renishaw.com/atomdownloads
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  • Page 1 Installation guide M-9693-9723-07-A ATOM linear encoder system ™ Image here if required www.renishaw.com/atomdownloads #renishaw...
  • Page 2 This page is intentionally left blank. ATOM linear encoder system...

  • Page 3: Table Of Contents

    Ti interface ....................... . .35 www.renishaw.com...
  • Page 4 Electrical connections......................68 ATOM linear encoder system...
  • Page 5 RKLF scale specifications ......................74 www.renishaw.com...

  • Page 6: Legal Notices

    /or software, or available on request from your local Renishaw office. or authorised representative could void the user’s authority to operate the equipment. Renishaw warrants its equipment and software for a limited period (as set out in the Standard 47 CFR Section 15.105 Terms and Conditions), provided that they are installed and used exactly as defined in associated Renishaw documentation.
  • Page 7 Information required by Article 33(1) of Regulation (EC) No. 1907/ 2006 (“REACH”) The ATOM FPC readhead and ACi have been designed as system components and to be relating to products containing substances of very high concern (SVHCs) is available at compliant with EMC regulations for products of their type.

  • Page 8: Storage And Handling

    Scale and readhead RTLF – 150 mm NOTE: During storage, ensure self-adhesive tape N-heptane Propan-2-ol RKLF – 50 mm is on the outside of the bend. CH 3 (CH 2 ) 5 CH 3 CH 3 CHOHCH 3 ATOM linear encoder system...
  • Page 9 Readhead Temperature Storage System −20 °C to +70 °C Installation RKLF scale +10 °C to +35 °C Readhead and DRIVE-CLiQ interface Operating System 0 °C to +70 °C Humidity 95% relative humidity (non-condensing) to IEC 60068-2-78 www.renishaw.com...

  • Page 10: Atom System Installation Overview

    ATOM system installation overview This section gives an overview of the steps involved in installing, setting-up and calibrating an ATOM system. More detailed information is contained within the rest of the document. For information on designing the readhead and scale into the system refer to the detailed installation drawings and 3D models at www.renishaw.com/atomdownloads...

  • Page 11: Rtlf / Rklf Tape Scale

    Scale length (with optional end covers) = Measuring length + 13 mm relative to scale 2.5 ±0.11 (40 µm version) Scale length (without end covers) = Measuring length + 6 mm 2.5 ±0.055 (20 µm version) For detailed installation drawings refer to www.renishaw.com/atomdownloads www.renishaw.com...

  • Page 12: Rklf Installation Drawing

    2.5 ±0.08 (40 µm version) Forward direction of 2.5 ±0.04 (20 µm version) Overall length = Measuring length + 70 mm readhead relative to scale Operating rideheight: Scale length = Measuring length + 40 mm 2.5 ±0.11 (40 µm version) 2.5 ±0.055 (20 µm version) ATOM linear encoder system...

  • Page 13: Rtlf / Rklf Application Methods

    Slim applicator A-9402-0060 (RTLF), Top mount applicator A-9402-0028 (RTLF), Top mount applicator A-9402-0028 (RTLF), A-6547-1943 (RKLF). Only for use with A-6547-1947 (RKLF) (page 16). A-6547-1939 (RKLF) (page 16). A-6547-1939 (RKLF) (page 16). ‘ L’ mounting bracket A-9402-0037 (page 16). Continues on page www.renishaw.com...

  • Page 14: Rtlf Ledge Or Dowel Mounting

    Renishaw scale wipes (A-9523-4040) (page 19) • Loctite 435 dispensing tip (P-TL50-0209) • End cover kit (A-9585-0035) • Reference mark deselection stickers (A-9402-0049 for a sheet of 20) • Lint-free cloth Deselect reference marks (page 21) ATOM linear encoder system...

  • Page 15: Rtlf Mounting

    Location ledge 4. Clean scale using Renishaw scale wipes or a clean, dry, lint-free cloth. 5. Fit datum clamp and end covers (page 19) and, if needed, deselect reference marks that are not required as detailed (page 21).

  • Page 16: Rtlf / Rklf Scale Applicator

    RTLF tape scale, any length There are different versions of the applicator depending upon the scale and design of the readhead mounting bracket. For more information on designing your bracket, contact your local Renishaw representative. • RKLF narrow tape scale, any length...

  • Page 17: Rtlf / Rklf Application (Any Length)

    Ensure the backing paper feeds out of the back of the applicator around • Insert the scale into the applicator up to the start position. the splitter screw as shown. • Ensure the backing paper feeds out of the back of the applicator round the splitter screw as shown. www.renishaw.com...
  • Page 18 Slim and side mount applicators: Fit readhead mounting bracket after removal of scale applicator. 13. Clean the scale using Renishaw scale wipes or a clean, dry, lint-free cloth. 14. RTLF: Fit datum clamp and end covers (page 19) and, if needed, deselect reference marks that are not required as detailed (page 21).

  • Page 19: Rtlf Datum Clamp

    2. Align the markers on the edges of the end cover with the end of the scale and place the end cover over the scale. NOTE: There will be a gap between the end of the scale and the adhesive tape on the end cover. Ensure the adhesive wicks along the entire length of the cut-out. www.renishaw.com...

  • Page 20: Rklf End Clamps

    RKLF end clamps The end clamp kit is designed to be used with Renishaw RKLF scale to ensure the scale is mastered to the substrate. Alternative narrow 6 mm wide end clamps (A-9523-4111) are also available. NOTE: End clamps can be mounted before or after readhead installation.

  • Page 21: Rtlf / Rklf Reference Mark Deselection

    50 mm spacing so two can be selected at once for deselecting two reference marks. 1. Ensure the scale is free from dirt and grease by cleaning with a Renishaw scale wipe or one of the recommended solvents (see ‘Storage and handling’...

  • Page 22: Rclc Glass Spar Scale

    2.5 ±0.11 (40 µm version) Overall length 2.5 ±0.055 (20 µm version) Measuring length For detailed installation drawings refer to www.renishaw.com/atomdownloads Can be applied on one or both sides of the scale. ATOM linear encoder system...

  • Page 23: Rclc Mounting

    RGG-2 two part epoxy adhesive (A-9531-0342) • Appropriate cleaning solvents (see 'Storage and handling' on page 8) Optional parts: • Renishaw scale wipes (A-9523-4040) • Lint-free cloth Support dowels 1. Thoroughly clean and degrease the substrate using recommended solvents (see 'Storage and handling' on page 8).
  • Page 24 The datum clamp does not need to be positioned adjacent to a reference mark. It can be positioned anywhere along the axis depending upon the customers’ requirements. 6. After 24 hours when epoxy is cured, clean scale using Renishaw scale wipes or a clean, dry, lint-free cloth.

  • Page 25: System Connection

    Readhead only For cable variant with interboard connector (no interface) The ATOM readhead is available in several variants: Ensure that the interboard connector is inserted into the connector on the customers’ electronics. • Cable variant with a 15-way D-type connector NOTE: Care should be taken to ensure correct orientation •...
  • Page 26 • Minimum exposed conductor strip length 1.5 mm • Maximum exposed conductor strip length 2.5 mm (to ensure isolation from the body) 3.25 mm Contact your local Renishaw representative for more information regarding FPC design requirements. Shielding Shield For optimum performance: connect pad FPC connector •...
  • Page 27 CAUTION: Do not push the locking lever down if no FPC cable is inserted as this will damage the locking mechanism. 3. When the system has been connected, proceed with 'Readhead mounting and alignment' on page 'System calibration' on page 45. www.renishaw.com...
  • Page 28 PCB. 2. Ensure locking lever is fully open before removing the FPC cable. 3. Pull the FPC cable straight back to remove it. CAUTION: Do not pull upwards or sideways as this may damage the readhead. ATOM linear encoder system...

  • Page 29: Aci Interface

    • Conductor pitch 0.5 mm • Minimum exposed conductor strip length 1.5 mm • Maximum exposed conductor strip length 2.5 mm (to ensure isolation from the body). Contact your local Renishaw representative for more information regarding FPC design requirements. www.renishaw.com...
  • Page 30 26 to 30 AWG. See page for pin-out information. Approved ESD precautions must be followed at all times during readhead Cable and interface electrical connection. interboard connector Ensure suitable clamping to retain interboard connector on ACi. ATOM linear encoder system...
  • Page 31 • 16 core • Conductor pitch 0.5 mm • Minimum exposed conductor strip length 1.5 mm • Maximum exposed conductor strip length 2.5 mm (to ensure isolation from the body) Contact your local Renishaw representative for more information regarding FPC design requirements. www.renishaw.com...
  • Page 32 PCB mounting: connecting a cable variant ATOM readhead ACi interface Customer PCB 2 mounting holes M3 through Ferrule Input Output Cable interboard connector Shielding For optimum performance: • Ensure 100% shielding • Ground the mounting brackets • Use a metal clamp around the cable ferrule to ground the readhead cable •...

  • Page 33: Ri Interface

    The readhead is connected to the Ri interface via a small, rugged connector to allow for easy feed-through during installation. NOTE: An optional Ri cable guide (A-9693-2577) is available to simplify assembly. For instructions on how to install the Ri cable guide, download the Ri interface cable guide (Renishaw part no. M-9770-9478) from the website at www.renishaw.com/atomdownloads Connecting the readhead 1.
  • Page 34 2. Open the interface housing as detailed earlier in this section. 3. Gently lever the connector PCB (on the end of the cable) out of the socket. 4. Place the connector in an anti-static bag. 5. Re-assemble the interface. ATOM linear encoder system...

  • Page 35: Ti Interface

    3. Refit the cover plate, ensuring the cable ferrule is located in the recess on the inside, and no wires are trapped under the cover plate. 4. Proceed with ‘Readhead mounting and alignment’ on page ‘System calibration’ on page 45. www.renishaw.com...
  • Page 36 3. Gently lever the connector PCB (on the end of the cable) out of the socket. CAUTION: Do not pull the cable to remove the connector. 4. Place the connector in an anti-static bag. 5. Refit the cover plate. ATOM linear encoder system...

  • Page 37: Readhead Mounting And Alignment

    There is a range of tools available to assist with readhead installation depending upon the system design; these are detailed below. For more details on designing the mounting bracket and selecting the appropriate mounting tools, contact your local Renishaw representative. Ensure that the scale, readhead optical window and mounting face are clean and free from obstruction.

  • Page 38: Shim Kit

    Shims of a known thickness are inserted between the mounting face of the readhead and the bracket to give the correct rideheight. • Digital dial gauge (DTi) or similar • 2 × M2 × 6 screws • ATOM readhead Optional parts: • DTi adaptor (A-9401-0105) ATOM linear encoder system...
  • Page 39 Position or fix the gauge / adapter in place of the readhead and measure the distance to the scale surface. Contact your local Renishaw representative for details of the DTi adapter and digital dial guage. 2. Subtract the distance measured from the nominal rideheight of 2.5 mm to calculate the required shim thickness.

  • Page 40: Dummy Kit

    2. Loosely mount the readhead bracket onto the axis. • 2 × bracket mounting screws • ATOM readhead The bracket should have a shoulder to control readhead yaw. Contact your local Renishaw representative for more information on bracket design. ATOM linear encoder system...
  • Page 41 5. Remove the dummy head. 6. Install the ATOM readhead in place of the dummy head using screws in diagonally opposite fixing holes. Ensure the readhead is pushed back against the shoulder of the bracket or mounting face. 7. Connect the system up. See pages for relevant system connection.

  • Page 42: Accurate Bracket And Feeler Gauge

    6. Check the readhead set-up LED is green along the full axis of travel. 7. Proceed with ‘System calibration’ on page 45. For more information on bracket design, contact your local Renishaw representative. ATOM linear encoder system...

  • Page 43: Signal Amplitude Adjustment

    Signal amplitude adjustment Suitable for: • Applications where the readhead mounting bracket allows full adjustment of the readhead and the Renishaw USB set-up tool kit and software or an oscilloscope can be used to monitor the output signals. Pitch Required parts: Rideheight •...

  • Page 44: Calibration Overview

    Calibration is an essential operation that completes readhead set-up, with the optimum incremental and reference mark signal settings stored in the readhead’s non-volatile memory. This section is an overview of the calibration procedure for an ATOM system. For more detailed information on calibrating the system see ‘System calibration’...

  • Page 45: System Calibration

    LED) the calibration of the incremental signals has failed. After ensuring failure is not due to overspeed (> 100 mm/s), exit the calibration routine, restore factory defaults and check the readhead installation and system cleanliness before repeating the calibration routine. www.renishaw.com...
  • Page 46 CAL button on the the end of the interface remote CAL line (pin 8) side of the interface for < 2 seconds. for < 2 seconds. for < 2 seconds. • On successful exit, the readhead set-up LED will stop flashing blue and remain green. ATOM linear encoder system...

  • Page 47: Restoring Factory Defaults

    > 3 seconds then disconnect. > 3 seconds then release. > 3 seconds then release. • The readhead set-up LED will be green with the addition of blue when AGC is enabled. NOTE: The system must be calibrated before switching AGC on. www.renishaw.com...

  • Page 48: Led Diagnostics

    Alarm output will take the form of 3-state or line driven E− signal depending on interface configuration. Also, some configurations do not output overspeed alarm. See the ATOM ™ miniature encoder system data sheet (Renishaw part no. L-9517-9563) for more details. Momentary status only, while fault condition remains. Alarm may result in axis position error, re-datum to continue.

  • Page 49: Troubleshooting

    • Offset • Check the scale and readhead orientation. • Check that the readhead variant is the correct type for the chosen scale (see the ATOM miniature encoder system ™ data sheet (Renishaw part no. L-9517-9563) for details of readhead configuration).
  • Page 50 • Check the readhead optical window and scale are clean and free from contamination. • Check that the readhead variant is the correct type for the chosen scale (see the ATOM ™ miniature encoder system data sheet (Renishaw part no. L-9517-9563) for details of readhead configuration).

  • Page 51: Atom Readhead

    ATOM readhead Cabled readhead dimensions Dimensions and tolerances in mm 6.45 Readhead Set-up 10.25 datum faces 1.4 (40 µm version) 1.9 (20 µm version) 12.7 8.7 4.85 Mounting face 4.15 Ø9 max. Readhead / scale orientation 3 mounting holes Ø2.5 min through 16.5 20.5 For detailed installation drawings, refer to R>...

  • Page 52: Fpc Readhead Dimensions

    NOTE: Readhead is supplied with lid separate. 20.5 FPC cable must be inserted before fitting the lid. For detailed installation drawings, refer to www.renishaw.com/atomdownloads Identification marks for readhead manufacture only. Notches will vary depending on readhead type. Not optical centreline ATOM linear encoder system...

  • Page 53: Bracket Dimensions

    ‘ L’ mount bracket Side mount bracket (A-9402-0037) (A-9401-0103) 16.25 10.5 3 holes M2 × 0.4 Ø9.15 10.5 12.7 4.85 Ø9.4 3 holes M2 × 0.4 8.25 16.5 16.5 3.25 2 holes M3 × 0.5 4 slot holes Ø2.2 through www.renishaw.com...

  • Page 54: Output Signals

    FPC connection Interboard JST connector connector for connection to Ri, Ti and cabled ACi interfaces All power connections should be used either to minimise voltage drop down the cable or incorporate voltage sensing. Only available on interboard connector. ATOM linear encoder system...

  • Page 55: Aci Interface

    FPC cable Care must be taken not to damage the FPC connector when fitting / removing the cable. 10-way JST, GH crimp connector. 1.25 mm pitch. Suitable for cable size 26 to 30 AWG. 3 m JST to 15-way D-type cable A-9412-1001. www.renishaw.com...
  • Page 56 Reference mark − − Reference mark Set-up − Remote CAL Set-up Do not connect 9, 10 Remote CAL All power connections should be used either to minimise voltage drop down the cable or incorporate voltage sensing. ATOM linear encoder system...

  • Page 57: Cable Variant Installation Drawing

    Component area 2 mounting pillars CAL pad 4.5 × 45° 2 mounting holes M3 through Component area 6.25 10-way JST, GH crimp connector. 1.25 mm pitch. Suitable for cable size 26 to 30 AWG. 3 m JST to 15-way D-type cable A-9412-1001. www.renishaw.com...
  • Page 58 Cable ferrule Cable ferrule Do not connect 1, 2 1, 3, 7, 11 All power connections should be used either to minimise voltage drop down the cable or incorporate voltage sensing. Only available on interboard connector. ATOM linear encoder system...

  • Page 59: Pcb Mounting Variant Installation Drawing

    Dimensions and tolerances in mm Recommended mating connector Samtec CLP-105-02-F-D-P-TR PCB footprint 16.1 Clearance holes ∅0.74 10.1 CAL pad 1.27 12.5 1.27 (typ) 0.74 (typ) Component area 14.5 CAL pad 4.5 × 45° 2 mounting holes M3 through Component area www.renishaw.com...
  • Page 60 − − − Reference mark − − Set-up Remote CAL Pin 1 ACi PCB Pin 2 input connector Pin 9 Pin 1 ACi PCB output (Samtec FTS-105-01-L-DV-P-TR) connector Pin 10 Pin 2 Pin 10 Pin 9 ATOM linear encoder system...
  • Page 61 Lowest recommended counter input frequency 0020 0040 0080 0100 0200 0400 1000 2000 (MHz) (2 µm) (1 µm) (0.5 µm) (0.4 µm) (0.2 µm) (0.1 µm) (40 nm) (20 nm) 11.6 0.26 0.13 0.36 0.12 0.06 0.24 0.08 0.04 www.renishaw.com...

  • Page 62: Ri Interface Drawing

    CAL button operation Push and release (< 2 seconds) – Calibration (CAL) routine initiation / exit. Push and release (> 3 seconds) – Automatic Gain Control (AGC) initiation / exit. Push and hold during power ‘Off / On’ cycle – Restore factory defaults. ATOM linear encoder system...
  • Page 63 All power connections should be used either to minimise voltage drop down the cable or incorporate voltage sensing. The alarm signal can be output as a line driven signal or 3-state. Select the preferred option at time of ordering. www.renishaw.com...
  • Page 64 0004 (10 µm) × 4 0008 (2.5 µm) 0008 (5 µm) Encoder velocity (m / s) safety Resolution (µm) 0020 (1 µm) 0020 (2 µm) factor 0040 (0.5 µm) 0040 (1 µm) Analogue speed 40 µm system - 20 m/s (−3dB) 20 µm system - 10 m/s (−3dB) ATOM linear encoder system...

  • Page 65: Ti Interface Drawing

    Push and hold during power ‘Off / On’ cycle - Restore factory defaults. Refer to ‘Readhead LED diagnostics’ and ‘Ti LED diagnostics’ for LED indications. Cover plate 6 min R> 20 Dynamic bend radius R> 10 Static bend radius Interface set-up LED CAL button access hole Ø2.4 (digital interface only) www.renishaw.com...
  • Page 66 All power connections should be used either to minimise voltage drop down the cable or incorporate voltage sensing. The alarm signal can be output as a line driven signal or 3-state. Select the preferred option at time of ordering. ATOM linear encoder system...
  • Page 67 0.082 0.032 0.0162 12.96 6.48 2.58 1.296 0.648 0.26 0.13 0.064 0.026 0.013 0.45 0.18 0.09 0.046 0.018 0.009 6.74 3.36 1.34 0.676 0.338 0.136 0.068 0.034 0.0136 0.0068 1.68 0.84 0.32 0.168 0.084 0.034 0.016 0.008 0.0034 0.0016 www.renishaw.com...

  • Page 68: Electrical Connections

    120R Cable Z = 120R Shield (recommended) A B Z E− 220 pF For more information on FPC contact your local Renishaw representative. 0 V Customer Standard RS422A line receiver circuitry. electronics Cable readhead Capacitors recommended for improved noise immunity. Connector / interface...

  • Page 69: Output Specifications

    Output specifications Analogue output signals Set-up During normal operation All ATOM readheads and Ri and Ti analogue interfaces. Incremental 3.3 V (nom) 2 channels V and V differential sinusoids in quadrature, centred ~ 1.65 V (90 ° phase shifted) Voltage at V 40 / 20 µm...
  • Page 70 Between 50% and 70% signal level, X is a duty cycle. Time spent at 3.3 V increases with incremental signal level. At > 70% signal level X is nominal 3.3 V. ¹ Inverse signals not shown for clarity. Set-up signals as shown are not present during calibration routine. ATOM linear encoder system...
  • Page 71 ACi, Ri and Ti interfaces. Differentially transmitted signals forced open circuit for > 15 ms when alarm conditions valid. (Ri and Ti alarm conditions same as differential line driven output. ACi alarm conditions: < 40% signal or overspeed). Inverse signals not shown for clarity. www.renishaw.com...

  • Page 72: General Specifications

    Outside diameter 3.5 mm maximum Flex life > 20 × 10 cycles at 20 mm bend radius Maximum length 5 m (Extension cable up to 10 m when using Renishaw approved extension cable) UL recognised component FPC cable 16 core, 0.5 mm pitch Minimum exposed conductor length 1.5 mm Maximum exposed conductor length 2.5 mm...

  • Page 73: Rtlf Scale Specifications

    20 mm to 1 m in 10 mm increments 1 m to 10 m in 1 m increments Mass 12.2 g/m For information on how the substrate affects the axis, contact your local Renishaw representative. RCLC scale specifications Material Soda-lime glass fitted with a self-adhesive backing tape Form 1.1 mm ×...

  • Page 74: Rklf Scale Specifications

    RGG-2 two part epoxy adhesive (A-9531-0342) Scale end movement typically < 1 μm Maximum recommended axis length 1 m for 20 μm systems. The scale and end clamps must be installed following the installation process, see page and page 21. ATOM linear encoder system...
  • Page 75 WHILE CONSIDERABLE EFFORT WAS MADE TO VERIFY THE ACCURACY OF THIS © 2013–2022 Renishaw plc. All rights reserved. This document may not be copied or reproduced in whole or in part, or transferred to any other DOCUMENT AT PUBLICATION, ALL WARRANTIES, CONDITIONS, REPRESENTATIONS media or language by any means, without the prior written permission of Renishaw.

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