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Non-contact open linear absolute encoders

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    Absolute non-contact encoders

    ABSOLUTES
    Series Section Measuring lengths Accuracy Signals Pitch
    Resolution up to
    Model
    Absolute EXA
    Adhesive 

     

     

     EXA_absolute_section 70 mm up to 3.020 mm (*) ± 10 μm/m SSI 0,01 μm
    TAA + L2A
    PANASONIC®
    0.01 μm
    TAA + L2AP
    MITSUBISHI®
    0.01 μm
    TAA + L2AM/L2AM2
    BiSS®
    0.01 μm
    TAA + L2AB
    YASkAWA®
    0.009765625 μm
    TAA + L2Ak
    Absolute EXG
    Guided 

     

     

     EXG_absolute_section 240 mm up to 3.040 mm (*) ± 10 μm/m SSI
    0.01 μm
    PG+TGA + L2A
    PANASONIC®
    0.01 μm
    PG+TGA + L2AP
    MITSUBISHI®
    0.01 μm
    PG+TGA + L2AM/L2AM2
    BiSS®
    0.01 μm
    PG+TGA + L2AB
    YASkAWA®
    0.009765625 μm
    PG+TGA + L2Ak
    Absolute EXT
    Tensioned 

     

     

     EXT_absolute_section 140 mm up to 3.040 mm (*) ± 5 μm/m SSI
    0.01 μm
    PT + TTA + L2A
    PANASONIC®
    0.01 μm
    PT + TTA + L2AP
    MITSUBISHI®
    0.01 μm
    PT + TTA + L2AM/L2AM2
    BiSS®
    0.01 μm
    PT + TTA + L2AB
    YASkAWA®
    0.009765625 μm
    PT + TTA + L2Ak

    (*) contact Fagor Automation for other lengths.

     
    Installation
    Consider the physical length of the installation and the space available for it.
    These aspects are crucial to determine the type of linear encoder to use (type of profile).

     

    Mechanical Design:
    EXA: adhesive model with the smallest cross section for constraint spaces, it consists of an engraved steel tape glued directly onto the machine surface, recommended if the tape is under thermally stable conditions.
    EXG: guided model for long measuring lengths it comprises an aluminium extrusion glued to the surface and an engraved steel tape. The steel tape is guided in the extrusion and secured in the mid point to the machine surface that allows the tape to expand/contract freely at its ends and ensures a defined thermal behaviour.
    EXT: tensioned model for very long measuring lengths and high accuracy it comprises an aluminium extrusion glued or screwed to the surface, an engraved steel tape and tensioning system. The steel tape is guided in the extrusion and tensioned between its ends. The tensioned steel tape is fixed on the machine base so it replicates the thermal behaviour of the surface.

     

    Accuracy
    Each linear encoder is subjected to quality control showing its accuracy along its measuring length.

     

    Signal
    The signal selection considers the communication protocols compatible with the main CNC manufacturers.

     

    Resolution
    The resolution of the control of machine depends on the linear encoder.

     

    Cable length
    The length of the cable depends on the type of signal.

     

    Compatibility
    The signal must be compatible with the control system.

     

    Speed
    The speed requirements for the application must be analyzed before choosing the linear encoder.

     

    Shock and Vibration
    Fagor linear encoders withstand vibrations of up to 200 m/s2 and shocks of up to 1000 m/s2.

     

     

     

     

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