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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    1
    0.1 μm Max. resolution
    ± 1 μm Max. accuracy grade
    0.2 μm Max. backlash error
    2
    SSI-BiSS output signals with or without TTL or 1 Vpp incremental signal
    3
    Gaskets for circuit protection (IP 67).
    4
    Sealing lips resistant to oil and wearing.
    Self-blocking special profile.
    5
    Tempered and grinded steel guides for carriage sliding.
    6
    Ball bearings with gothic arc profile. High precision and translation straightness of the carriage.
    7
    PUR cable, suitable for continuous movements. Easily adjustable cable output.
    8
    Moulded M12 connector (IP 67) or other models on request.
    9
    Various possibilities of connection to the machine, through double-effect joint or steel wire.
    10
    Metal double-carriage.
    Elastic compensation of mechanical backlashes.
    11
    Glass optical grating for absolute reading.
    12
    Scale or slider pressurization.
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