Motor feedback encoders
Synchronous Motor Encoders
Precise optical scanning for the best signal and control quality in your application
- Compact designs starting from 36 mm enable space-saving installation
- Open real-time digital protocol
36 mm mutlak – BiSS C
EFL360
Optical absolute encoders
- Blind hollow shaft or tapered shaft
- Rotor position feedback with 21-bit resolution
- Multi-circuit with energy recovery (coming soon)
- Digital signal transmission via BiSS C
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Space-saving integration into compact servo motors
Only Ø36 mm design and low construction depth of 26 mm allow installation in very narrow spaces
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Precise and reliable scanning
New optical single-turn scanning with Blue LED technology increases the distance between the disk and the diaphragm by up to 3 times
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Insensitive to parasites
Optical rotary encoders detect and transmit absolute position information completely digitally
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Fast and secure data transmission
Open, non-proprietary digital interface provides fast, secure and practical data transmission
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Long service life
Blue LED scanning provides optimum tuning against low current and aging/contamination/temperature effects; LED and encoder life increases significantly at temperatures up to 115 °C
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Insensitive to contamination
Three scanning paths wider than 1 mm are scanned according to the proven Nonius principle and are extremely resistant to contamination
Absolute motor feedback encoder — precision solution for synchronous servo motors
Absolute motor feedback encoders detect speed, direction of rotation and position in electric motors. Its main tasks in application are speed and position control as well as commutation in synchronous servo motors. The number of steps per revolution determines the resolution. The position is taken once in a reference cycle after setup and is then permanently maintained. Absolute motor feedback encoders provide both mechanical and electrical properties Optimally adapted for use in synchronous servo motors.
Blue LED for greater compactness, resolution and lifespan
In optical incremental and absolute encoders, blue LED photons with shorter wavelength and lower penetration depth contribute significantly to improving signal resolution, amplitude, offset, harmonic distortion and jitter performance. Less diffraction and a much sharper image allow encoders with a more compact design and higher resolution, for example with a resolution of up to 10,000 pulses per revolution in the Ø30 mm design. Blue LED light increases contrast at lower noise levels, improving optical system efficiency and reducing power consumption. This helps increase the accuracy and lifespan of the encoder, especially at high operating temperatures.
BiSS C
The Serial BiSS C interface is compatible with the well-proven SSI interface (Serial Synchronous Interface). However, BiSS C offers significant improvements over SSI and supports continuous real-time communication between controllers and sensors. The range of applications for BiSS C extends from manufacturing robotics to motor feedback applications and servo drives, motion control and position encoders to CNC machines.