Like many other automation devices, rotary encoders can benefit from running as part of an EtherNet/IP network. At Kuebler, our newest series of encoders combines certified EtherNet/IP support with patented mechanical and electro-optic technologies that ensure accuracy and reliability. Called the Sendix F58 Series, these optical encoders come in four different models:

  • Sendix F5858 and F5878 are single-turn encoders with up to 19 bits of total resolution. F5858 offers integrated shafts up to 10 mm, while the F5878 has a blind shaft receptacle that can accommodate shafts up 15 mm.
  • Sendix F5868 and F5888 are multiturn optical encoders. These units make use of our patented Intelligent Scan Technology, which incorporates all encoder functions on a single Opto-ASIC. Intelligent Scan provides a high resolution up to 32 bits and corrects for any magnetic field errors. The resulting encoders are completely insensitive to the effects of magnetic fields.

Performance Advantages. As EtherNet/IP-certified devices, Sendix F58 encoders have some performance advantages related to how quickly they can transmit position data. These encoders have a RPI time as low as 1 ms, which allows them to transmit position data about 5 times faster than many conventional encoders. This speed advantage makes the F58 encoders particularly well-suited to packaging, textile and printing applications—or any other application with fast machines that could be even faster with a position sensing upgrade.

Benefits of EtherNet/IP. EtherNet/IP also makes the encoders easy to commission. Simply plug them into the network, look for their IP address settings and configure them via software. Thanks to the network connection, they start up instantly as soon as they receive power. And because they can use EtherNet/IP’s Device Level Ring feature, the F58 encoders can keep running in the event of a cable break or signal interruption. Together, the fast commissioning and resistance to interruption all but eliminate the most common causes of encoder-related downtime.

Mechanical Reliability. What’s more, the Sendix models also have features to ensure mechanical reliability. All four models use Kuebler’s Safety-Lock bearing design, a mechanical design feature that protects bearings from wear or damage due to shock, vibration or misalignment. Other mechanical characteristics include:

  • Size and weight: 58 mm housing diameter and 0.45 kg.
  • Maximum speed: Up to 8,000 rpm in shafted versions and 6,000 rpm in hollow shaft versions.
  • Load capacity of shaft: 80 N radial and 40 N axial.
  • Starting torque: less than 0.01 Nm at 20ºC.
  • Standard enclosure: IP 65.
  • Temperature range: -40 to 80°C.
  • Shock: 2500 m/s² at 6 ms.
  • Vibration: 100 m/s² up to 2000 Hz.
  • Interfaces: Support for all standard mechanical and power interfaces. Custom interfaces are available.

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