22-Bit Encoder : High Accuracy & Compact Design

VLX-247

The Netzer VLX-247 Absolute Rotary Encoder delivers up to 22-bit resolution with 0.006 Degree accuracy in an ultra-thin (<10 mm) and lightweight (<220g) package. Featuring contactless capacitive sensing technology, it provides wear-free operation, ensuring long-term stability and reliability in critical applications.

Optimized for aerospace, robotics, defense, and high-precision automation, the VLX-247’s hollow, low-inertia design minimizes system mass while maximizing dynamic response. When cutting-edge rotary feedback is essential, the VLX-247 sets a new benchmark for precision, durability, and compact performance.

NEW Modular Parameter Selection
Our new modular configuration feature enables the flexible selection of resolution, interface (BiSS-C or SSi), and software turn counting, giving engineers greater freedom to tailor encoder behavior to specific application needs from the earliest design stages.

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Features

Reduced inertia and optimized system integration with hollow shaft
Best-in-class repeatability for extreme accuracy
Exceptional shielding against electromagnetic and radio interference
Compact, lightweight build ideal for space-constrained applications
Designed for minimal maintenance and extended service life
Reliable precision scaling for high-end automation feedback

Unique Values

Wide mounting
Low Profile
Light weigth
Space tested

OD

247.7 mm
ID

171.4 mm
Height

10 mm
Weight

220 gr
Resolution

17-22 bit
Accuracy

±0.010° / 0.006°˚

Technical Data

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General

Angular resolution 17-22 bit
Nominal position accuracy ±0.010° / ±0.006°
Repeatability 1.4 mdeg / 4.9 Arcsec
Maximum operational speed 4,000 rpm
Measurement range Single Turn absolute with optional shaft turn counter
Built In Test BIT Optional
Rotation direction Adjustable CW/CCW (Default same direction from bottom side of the encoder

Mechanical

Allowable mounting eccentricity ±0.1 mm
Allowable axial mounting tolerance ±0.3 mm
Rotor inertia 876,053 gr · mm²
Total weight 220 gr
Outer diameter / Inner diameter / Profile 247.7 / 171.4 / 10 mm
Material (stator / rotor) FR4
Nominal air gap (stator, rotor) 1 mm

Electrical

Supply voltage 5V ± 5%
Current consumption ~90 mA
Interconnection Connector: DF13A-10P -1.25H
Communication SSi, BiSS-C
Output code Binary
Serial output Differential RS-422
Clock frequency 0.1-5.0 MHz
Position update rate 35 kHz (Optional - up to 375 kHz)

Environmental

EMC IEC 6100-6-2, IEC 6100-6-4
Operating temperature -40°C to +85°C
Storage temperature -40°C to +85°C
Relative humidity 98% Non condensing
Shock endurance / functional 100g 6msec saw-tooth per IEC 60068-2-27:2009
Vibration endurance 20g @ 10 to 2000 Hz sweep per IEC 60068-2-6
Protection IP 40

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EVL- Evaluation Encoder

Product line
- VLX | Robotics & Industry | Hollow Shaft
OD
- 25 mm (ID - 2.2 mm)
- 35 mm (ID - 11.5 mm)
- 59.7 mm (ID - 25 mm)
- 80 mm (ID - 35 mm)
- 100 mm (ID - 48 mm)
- 140 mm (ID - 90 mm)
- 170 mm (ID - 110 mm)
- 247.7 mm (ID - 171.4 mm)
Communication
- BiSS
- SSi
Resolution
- 17 bit
- 18 bit
- 19 bit
- 20 bit
- 21 bit
- 22 bit
- 23 bit
BIT
- Disabled
- Enabled
Shaft-turn Counter
- 2,048
- 4,096
- 8,192
- 16,384
- 32,768
- None
Interconnection
- Horizontal Connector
- Vertical Connector
Rotor Type
- Hollow Shaft Encoder
- End Shaft - Single Screw- VL35
- End Shaft - Single Screw VL25
- Shaft with Insert
Extended Accuracy
- Enabled
- Disabled