Skip navigation

VIONiC™ encoder series

Description

The VIONiC series is Renishaw's digital all-in-one incremental encoder of choice because it satisfies a wide range of motion control requirements. The series consists of 2 products:

  • Standard VIONiC for medium to high-end applications 
  • VIONiCplus™ for the most demanding applications

 

Features

VIONiC

VIONiCplus

Outputs

Digital resolutions from 5 µm to 20 nm direct from the readhead

Digital resolutions from 0.1 µm to 2.5 nm direct from the readhead

Sub-Divisional Error

Typically <±30 nm

Typically <±10 nm

Jitter (RMS)

Down to 1.6 nm

Down to 1.6 nm

Maximum speed

12 m/s

3.63 m/s

VIONiC encoder series

Key features

High speed digital interpolation 

 

Clocked output

option (MHz)

VIONiC only

VIONiC and VIONiCplus

VIONiCplus only

Minimum edge

separation* (ns)

Maximum speed (m/s)

Maximum speed (m/s)

Maximum speed (m/s)

5 µm (D)

1 µm (X)

0.5 µm (Z)

0.2 µm (W)

0.1 µm (Y)

50 nm (H)

40 nm (M)

25 nm (P)

20 nm (I)

10 nm (O)

5 nm (Q)

2.5 nm (R)

50

12

12

12

7.25

3.63

1.81

1.45

0.906

0.725

0.363

0.181

0.091

25.3

40

12

12

12

5.80

2.90

1.45

1.16

0.725

0.580

0.290

0.145

0.073

31.8

25

12

12

9.06

3.63

1.81

0.906

0.725

0.453

0.363

0.181

0.091

0.045

51.2

20

12

12

8.06

3.22

1.61

0.806

0.645

0.403

0.322

0.161

0.081

0.040

57.7

12

12

10.36

5.18

2.07

1.04

0.518

0.414

0.259

0.207

0.104

0.052

0.026

90.2

10

12

8.53

4.27

1.71

0.850

0.427

0.341

0.213

0.171

0.085

0.043

0.021

110

08

12

6.91

3.45

1.38

0.690

0.345

0.276

0.173

0.138

0.069

0.035

0.017

136

06

12

5.37

2.69

1.07

0.540

0.269

0.215

0.134

0.107

0.054

0.027

0.013

175

04

12

3.63

1.81

0.730

0.360

0.181

0.145

0.091

0.073

0.036

0.018

0.009

259

01

4.53

0.910

0.450

0.180

0.090

0.045

0.036

0.023

0.018

0.009

0.005

0.002

1038

 *For a readhead with a 1 m cable

 

Sub-Divisional Error (SDE)

Ultra-low Sub-Divisional Error (SDE) of typically <±30 nm for VIONiC and <±10 nm for VIONiCplus VIONiC SDE graph

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 ribbon with track option

Fastrack RTLR rectangular

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient at 20 °C

Max length of scale

Encoder system

RTLC with optional FASTRACK

±5 µm/m

20 µm

10.1 ±0.2 µm/m/°C

10 m

VIONiC with RTLC, VIONiCplus with RTLC

ZeroMet™ spar 

RELM linear scale with IN-TRAC reference mark

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient at 20 °C

Max length of scale

Encoder system

RELM/RELE

±1 µm for up to 1 m, then ±1 µm/m

20 µm

0.75 ±0.35 µm/m/°C

1.5 m

VIONiC with RELMVIONiCplus with RELM

Stainless steel spar

RELM Invar scale

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient at 20 °C

Max length of scale

Encoder system

RSLM/RSLE/RSLC

±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 with RSLM, VIONiCplus with RSLM

Stainless steel ring

RESR 3 rings

Scale name

Graduation accuracy (depending on ring diameter)

Scale pitch

Ring diameter

Encoder system

RESM/REST

±3.97 to ±0.38 arc seconds

20 µm

52 to 550 mm

 

 VIONiC with RESM, VIONiCplus with RESM

Ultra-high accuracy stainless steel ring 

REXM rings

Scale name

Installed accuracy (depending on ring diameter)

Scale pitch

Ring diameter

Encoder system

REXM/REXT

(≥100 mm diameter) ±1 arc second
(75 mm diameter) ±1.5 arc seconds
(≤57 mm diameter) ±2 arc seconds

20 µm

52 to 417 mm

 VIONiC with REXM, VIONiCplus with REXM

DSi (Dual Signal interface)

VIONiC™ DSi Dual Signal interface

Renishaw's DSi combines the incremental signals from two VIONiC readheads on a RESM ring (REST ring for partial rotation applications) or REXM ring (REXT ring for partial rotation applications) to compensate for the effect of bearing wander and eliminates odd error harmonics, including eccentricity, to give total installed accuracy of typically ±2.0 arc seconds.


Optional Advanced Diagnostic Tools

VIONiC Advanced Diagnostic Tool

The Advanced Diagnostic Tool is available for comprehensive real-time feedback from the VIONiC encoders. This can be used to aid challenging installlations and fault finding. It provides:

  • Remote calibration functions
  • Signal optimisation over axis length
  • Readhead pitch indication
  • Limit and reference mark indicators
  • Digital readout of the readhead position (relative to the scale)
  • Lissajous outputs
Find out all about the Advanced Diagnostic Tool.