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VIONiC™ encoder series

The VIONiC encoder series is Renishaw's highest performing incremental optical encoder. It provides direct digital position feedback with superior metrology, fast speeds and high reliability. The VIONiC readhead integrates Renishaw's market proven filtering optics and advanced interpolation technology. This provides ultra‑low Sub-Divisional Error (SDE), excellent dirt immunity, and eliminates the need for additional adaptors or separate interfaces.

VIONiC readheads are compatible with a wide range of linear and rotary scales, from low expansion ZeroMet, to high accuracy REXM rings. This makes it a versatile product suitable for a wide variety of applications, where metrology cannot be compromised. 

Designed with intuitive auto calibration mode, VIONiC readheads are easy to install. An optional Advanced Diagnostic Tool (ADTi-100) is available for real‑time encoder data feedback during installation or for in-field diagnostics.

New!

The VIONiC encoder is now available in resolutions down to 2.5 nm with enhanced SDE across the product range.

* Downloads include data sheets, installation guides, videos, software, technical drawings.

Key features

Speed

Clocked output option (MHz)Maximum speed (m/s)Minimum edge separation* (ns)
D (5 μm)X (1 μm)Z (0.5 μm)W (0.2 μm)Y (0.1 μm)H (50 nm)M (40 nm)P (25 nm)I (20 nm)O (10 nm)Q (5 nm)R (2.5 nm)
501212127.253.631.811.450.9060.7250.3630.1810.09125.3
401212125.802.901.451.160.7250.5800.2900.1450.07331.8
2512129.063.631.810.9060.7250.4530.3630.1810.0910.04551.2
2012128.063.221.610.8060.6450.4030.3220.1610.0810.04057.7
121210.365.182.071.040.5180.4140.2590.2070.1040.0520.02690.2
10128.534.271.710.8500.4270.3410.2130.1710.0850.0430.021110
08126.913.451.380.6900.3450.2760.1730.1380.0690.0350.017136
06125.372.691.070.5400.2690.2150.1340.1070.0540.0270.013175
04123.631.810.7300.3600.1810.1450.0910.0730.0360.0180.009259
014.530.9100.4500.1800.0900.0450.0360.0230.0180.0090.0050.0021038

*For a readhead with a 1 m cable

Ultra-low Sub-Divisional Error (SDE)

Interpolated error – 10 error cycles

VIONiC™ Sub Divisional Error (SDE)


X-axis: Readhead position (mm)

Y-axis: Error (nm)

Scale options

  • Linear scales are used where straight-line position information is needed - usually X, Y or Z axes.
  • Rotary scales are used for angular position information and the motion control of rotating elements.

Stainless steel tape with track option

Scale name

Accuracy

Scale pitch

Thermal expansion coefficient at 20 °C

Scale max length

Readhead compatibility

RTLC20 with optional FASTRACK™RTLC20 FASTRACK scale

±5 µm/m

20 µm10.1 ±0.2 µm/m/°C

10 m

VIONiC

ZeroMet™ spar

Scale name

Accuracy

Scale pitch

Thermal expansion coefficient at 20 °C

Scale max length

Readhead compatibility

RELM/RELE

RELM RSLM scale
±1 µm for up to 1 m, then ±1 µm/m

20 µm

0.75 ±0.35 µm/m/°C1.5 mVIONiC

Stainless steel spar

Scale nameAccuracyScale pitch

Thermal expansion coefficient at 20 °C

Scale max lengthReadhead compatibility

RSLM/RSLE/RSLC

RELM RSLM scale

±1.5 µm up to 1 m, ±2.25 µm up to 2 m, ±3 µm up to 3 m, ±4 µm up to 5 m

20 µm

10.1 ±0.2 µm/m/°C

5 m

VIONiC

Stainless steel ring

Scale name

Graduation accuracy (depending on ring diameter)

Scale pitch

Ring diameter

Readhead compatibility

RESM/REST

RESM-REST scale


±3.97 to ±0.38 arc seconds

20 µm

52 to 550 mm

VIONiC

Ultra-high accuracy stainless steel ring

 Scale name

Installed accuracy (depending on ring diameter)  

Scale pitch

Ring diameter

Readhead compatibility

REXM/REXT

REXM scale (scale page)


(≥100 mm diameter) ±1 arc second
(75 mm diameter) ±1.5 arc seconds
(≤57 mm diameter) ±2 arc seconds
20 µm52 to 417 mmVIONiC

Optional Advanced Diagnostic Tools ADTi-100

Advanced Diagnostic Tool ADTi-100

The VIONiC encoder system is compatible with the Advanced Diagnostic Tool ADTi-100 and ADT View software. They provide comprehensive real-time encoder data feedback to aid more challenging installations and diagnostics. The intuitive software interface can be used for:

  • Remote calibration
  • Signal optimisation over the entire axis length
  • Readhead pitch indication
  • Limit and reference mark indication
  • Digital readout of encoder position (relative to the scale)
  • Monitoring the velocity against time graph
  • Exporting and saving data