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VOLUME -26 NUMBER 5
Publication Date: 05/1/2011
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Special Features: Components and Distribution
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May 2011 Issue
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Heidenhain Intros Absolute Encoder
Schaumburg, IL — Heidenhain has released a new absolute, inductive rotary encoder, called the ECI 119. The new encoder has a low profile — just 19mm high,and an outside diameter of 92mm and large through shaft (50, 38, or 30mm), making it well suited for electric motors in many applications, including general automation, electronics and packaging industry, robotics, plastic injection molding machines, as well as on swivel and tilting axes.
Expanding on the established ExI 13xx and ExI 11xx series, the ECI 119 is a single-turn, absolute encoder offering 524288 (19 bit) positions per revolution, and provides ±90 arc seconds system accuracy.
A notable advantage of the ECI 119 is its bearingless design. Being a modular encoder, there is no need to correct for 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 encoder uses the company's EnDat serial data interface. Two types of output are offered: purely serial data (EnDat21) or serial data with 1Vpp incremental signals (EnDat 01). The SSI interface can also be implemented, but this requires a minimum value order. EnDat allows the user to transfer incremental and absolute position data, while also enabling online diagnostics.
A new version of the Adjusting and Testing Software is available with the new unit. This software allows diagnostic checks of the encoder position signals. And the new ExI Mounting Wizard allows the scanning gap and signal amplitude to be checked in order to assess mounting quality. This ensures reliable and repeatable mounting in the field.
Contact: Heidenhain Corp., 333 E. State Parkway, Schaumburg, IL 60173
847-490-1191 fax: 847-490-3931 E-mail: firstname.lastname@example.org Web:
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