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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    1
     10 nm Max. resolution.
    ± 2 μm Max. accuracy grade.
    0.2 μm Max. backlash error.
    2
    Serial interface SSI-BiSS, with or without 1 Vpp analog signal, Siemens DRIVE-CLiQ and FANUC α-αi.
    3
    Gasket for circuit protection (IP 67).
    4
    Connector inside the transducer.
    5
    PUR cable, suitable for continuous movements.
    Adjustable connecting cable output.
    6
    Moulded M12 connector (IP 67) or other models on request.
    7
    Horizontal or vertical pressurization.
    8
    Measuring length up to 3240 mm.
    9
    Rugged and heavy aluminum profile.
    Dimensions 40x24 mm.
    10
    Optical glass grating for absolute reading (pitch 20 μm).
    11
    Non-extendible sealing lips.
    12
    Block for the lateral fixing of the sealing lips.
    13
    Anti-condensation device.
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