Encoder Interface Box
January 1, 2014
HEIDENHAIN reported that it has responded to increased accuracy demands for angle encoders exceeding an inside diameter of 100 mm with the development of its EIB 1500 External Interface Box (EIB). According to the company, the EIB can be used by OEMs to increase accuracy or as an upgrade path for current installations in the field by adding extra scanning heads.
The EIB 1500 is an interpolation and digitizing electronics unit for digital calculations of two scanning heads that are mounted approximately 180° apart. "Ideal for use on rotary tables, stages and tilting axes, this interface box solves the periodic accuracy issues that come with bearings and encoder drum centering on rotary axes," said a company spokesperson.
"Specifically, eccentricity and bearing error can be compensated when two 1Vpp position values are averaged and converted to one purely serial signal," said the spokesperson. "The EIB 1500 does this when paired with large hollow-shaft angle encoders without integral bearing. The accuracy of the rotary axis can be improved up to a factor of three when an EIB 1500 is paired with HEIDENHAIN's ERM or ERA angle encoders without bearing.
"With an IP 65 rating and its compact size, the EIB 1500 is now presented as a series and is suitable for any industrial environment. EnDat, FANUC and Mitsubishi are all available output signals. With the EnDat pure serial interface, additional diagnostics and preventative maintenance capabilities are available. The EIB utilizes an output M12 8-pin connection and performs and automatic cable length compensation, thereby allowing long cable runs up to 100 meters."
For more information contact:
HEIDENHAIN Corporation
333 E. State Parkway
Schaumburg, IL 60173-5337
847-490-1191
info@heidenhain.com
www.heidenhain.us
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