OPTICAL SCALES

GVS 204 – Self-aligned absolute optical scale

Absolute optical scale with glass measuring support. Particularly suitable for applications on synchronized press brakes.
Serial interface SSI-BiSS, with or without 1 Vpp analog signal.
Reader head guided by a self-aligned and self-cleaning sliding carriage with spring system.
Resolution up to 0.1 μm.
Accuracy grade ± 2.5 μm in the standard version and ± 1 μm in the high-accuracy version.
SSI protocol and programmable resolutions.
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.

Resolution 1 Vpp	up to 0.01 µm
Resolution absolute measure	1 µm – 0.1 µm
Grating pitch	20 µm
Accuracy grade	± 2.5 µm standard ± 1 µm high accuracy
Max. traversing speed	up to 120 m/min
Measuring length	170, 220, 270, 320, … mm
Serial interface S	SI-BiSS, with or without 1 Vpp analog signal
Protection class	IP 54 standard IP 64 pressurized
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