Incremental optical scale with stainless steel grid for CNC machines / from 640 mm to 30'040 mm / ± 5 μm

GVS 900

• Incremental optical scale, available in one piece or in modular version for large machines (up to 30040 mm measuring length or higher on request).
• Application in various industries such as machine tools, vertical lathes, gantry machines, laser/plasma cutting machines, robotics, automation, etc.
• Stainless steel grid, integrated in the machine guide, for excellent accuracy at any temperature.
• Resolutions down to 0.1 μm.
• Degree of accuracy ± 5 μm.
• Permanently connected modules, for a perfect seal against liquids and pollution that does not change over time.
• Reference indices in coded distance, with constant step or selectable every 50 mm over the entire measuring length, with zero magneto set device.
• Adjustable cable output, through double plug.
• Large alignment tolerances.
  Pressurization from both sides of the scale and/or transducer.

Type	Resolution	Grating pitch	Accuracy grade	Max. traversing speed	Reference indexes	Output signals	Protection class	Datasheet
GVS 900 V	up to 0.1 μm *	40 µm	± 5 µm	120 m/min	C = at coded distance P = at constant step (every 50 mm) E = selectable (every 50 mm)	1 Vpp	IP 54 standard IP 64 pressurized
GVS 900 T	10 - 5 - 1 - 0.5 - 0.1 μm	40 µm	± 5 µm	120 m/min	C = at coded distance P = at constant step (every 50 mm) E = selectable (every 50 mm)	LINE DRIVER	IP 53 standard IP 64 pressurized

1. Rigidly bonded modules for a perfect seal, unchanging over time.
2. Up to a measuring length of 30040 mm, on request also higher.
3. Self-guided and self-aligning read head (internal);
   constant signal quality (line driver or 1 Vpp).
4. T-block for elastic mounting of the modules.
   Thermal expansion of scale and grating independent of each other.
5. Exclusive support and guide system for gratings.
   Large alignment tolerances of the modules.
6. High-precision, incremental stainless steel grid, micro-engraved with 40 µm graduation (20+20 µm).
   Resolution up to 0.1 µm.
7. Pressurization from both sides of the scale and/or transducer.
8. Non-expandable sealing lips, attached to the side ends.
9. Calibration of the grid. Max. Degree of accuracy ± 5 µm.
10. Block for fixing the gratings to the machine. Linear thermal expansion according to the application.
11. PUR cable suitable for continuous movement.
12. Double connection. Adjustable cable output.
13. Reference indices at coded distance, at constant step, or selectable every 50 mm over the entire measuring length, with zero magneto-set device.
14. Seals to protect the circuit (IP 67).
15. Brackets for moving and fixing the transducer in the correct position.

Accessories

Digital display devices:

• Vision 518
• Vision 900

Positioning control:

• THESI 310
• THESI 320

Video