Continuing its tradition of high quality products and
service, Heidenhain has released a new absolute, inductive rotary encoder. Called
the ECI 119, this encoder sets itself apart with a low profile (height of 19 mm,
outside diameter 92 mm) and large through shaft (50, 38, or 30 mm), making it
well suited for electric motors in many applications.
Expanding on the established ExI 13xx and ExI 11xx series,
the Heidenhain ECI 119 is a singleturn, absolute encoder offering 524288 (19
bit) positions per revolution, and provides ±90 in. system accuracy.
A notable advantage of the ECI 119 is its bearingless
design. Being a modular encoder, there is no need to worry about bearing wear
or loading, and concerns of mechanical self heating of the encoder and shaft
currents are eliminated. If all the mounting tolerances are met, the encoder
requires virtually no maintenance outside of contamination protection.
The ECI 119 uses Heidenhain’s EnDat serial data interface.
Two types of output are offered: purely serial data (EnDat21) or serial data
with 1 Vpp incremental signals (EnDat 01). The SSI interface can also be
implemented, but this requires a minimum value order. Not only does EnDat allow
the user to transfer incremental and absolute position data, it also enables