Design Engineering

Encoder Interface

By DE Staff   

Automation Motion Control Machine Building Robotics

HEIDENHAIN EnDat 3 features higher bandwidth and clock speeds of previous models plus black channel support.

HEIDENHAIN launched its EnDat 3, an updated version of its absolute position encoder interface. The latest model uses a 200 kHz clock frequency (16 kHz in previous versions) and has double the bandwidth, from 12.5 to a 25 Mb/s. In addition, EnDat 3 supports black channel, the industry standard for functional safety. The EnDat 3 also has reduced cabling requirements, requiring a two or four-wire setup as opposed to the eight wires previously needed.

For robotics applications, the EnDat 3 offers bus operation, which allows encoders to be daisy-chained together. It also has increased memory and storage capacity and offers the ability to password-protect information stored in the encoder. The new interface also supports an increased number of temperature sensors and features added support for multi-dimensional encoders. Like all the versions of EnDat, the EnDat 3 is bi-directional, so it can support monitoring and diagnostics.


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