Riga ottica assoluta CNCRiga ottica assoluta CNC
GVS 608

GVS 608

Absolute optical scale for CNC machine tools

  • Absolute optical scale with glass measuring support, particularly suitable for CNC machine tools.
  • Serial interface SSI-BiSS C (unidirectional), with or without 1 Vpp analog signal, Siemens DRIVE-CLiQ and FANUC α-αi.
  • Resolutions up to 10 nm.
  • Accuracy grade ± 5 μm in the standard version and ± 3 μm in the high accuracy version (± 2 μm for measuring lengths up to 720 mm).
  • Profibus-DP, Profinet, CANopen, DeviceNet and ModBus protocols, through conversion gateways.
  • Non-extendible sealing lips, along the sliding side of the reader head, fixed at the lateral ends.
  • Innovative device inside the scale for the disposal of liquids coming from inefficient filtering systems.
  • The special sealing lips and the device for the liquids disposal provide an excellent protection of the grating
    from refrigerant liquids often used during machining.
  • Metrological certificate provided with each scale.
  • Linear thermal expansion coefficient λ = 8 x 10-6 °C-1.
  • High accuracy and stability of signals even in case of high speed, strong accelerations and vibrations.
  • Adjustable connecting cable output.
  • Connector inside the transducer.
  • Protected against inversion of power supply polarity and short circuits on output ports.
  • Small size, to allow installation in narrow spaces.
  • Interchangeable with the previous model AGS.
  • Filtering system for pressurization available on request.

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     10 nm Max. resolution.
    ± 2 μm Max. accuracy grade.
    0.2 μm Max. backlash error.
    Serial interface SSI-BiSS, with or without 1 Vpp analog signal, Siemens DRIVE-CLiQ and FANUC α-αi.
    Gasket for circuit protection (IP 67).
    Connector inside the transducer.
    PUR cable, suitable for continuous movements.
    Adjustable connecting cable output.
    Moulded M12 connector (IP 67) or other models on request.
    Horizontal or vertical pressurization.
    Measuring length up to 3240 mm.
    Rugged and heavy aluminum profile.
    Dimensions 40x24 mm.
    Optical glass grating for absolute reading (pitch 20 μm).
    Non-extendible sealing lips.
    Block for the lateral fixing of the sealing lips.
    Anti-condensation device.
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