Self-aligned absolute optical scaleSelf-aligned absolute optical scale
GVS 204

GVS 204

Self-aligned absolute optical scale, with glass grating

  • Optical scale with glass measuring support and direct reading of the absolute position. Particularly suitable for applications on synchronized press brakes.
  • High-speed SSI-BiSS C (unidirectional) serial interface.
  • Option: 1 Vpp analog signal or Line Driver digital signal.
  • Reader head guided by a self-aligned and self-cleaning sliding carriage with spring system.
  • Resolutions up to 0.1 μm.
  • Accuracy grade ± 2.5 μm in the standard version and ± 1 μm in the high-accuracy version.
  • Profibus-DP, Profinet, CANopen, DeviceNet, ModBus and DRIVE-CLiQ protocols, through conversion gateways.
  • Metrological certificate provided with each scale.
  • Sealing lips for the protection of the grating, made of special elastomer resistant to oil and wearing.
  • Various possibilities of application, with double-effect joint or steel wire. An adapter guarantees the compatibility with PBS-HR scale.
  • High accuracy and stability of signals even in case of high speed, strong accelerations and vibrations.
  • Protected against inversion of power supply polarity and short circuits on output ports.

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    0.1 μm Max. resolution
    ± 1 μm Max. accuracy grade
    0.2 μm Max. backlash error
    SSI-BiSS output signals with or without TTL or 1 Vpp incremental signal
    Gaskets for circuit protection (IP 67).
    Sealing lips resistant to oil and wearing.
    Self-blocking special profile.
    Tempered and grinded steel guides for carriage sliding.
    Ball bearings with gothic arc profile. High precision and translation straightness of the carriage.
    PUR cable, suitable for continuous movements. Easily adjustable cable output.
    Moulded M12 connector (IP 67) or other models on request.
    Various possibilities of connection to the machine, through double-effect joint or steel wire.
    Metal double-carriage.
    Elastic compensation of mechanical backlashes.
    Glass optical grating for absolute reading.
    Scale or slider pressurization.
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