HEIDENHAIN speeds up EnDat 2.2 encoder interface

SCHAUMBURG, IL - (October 24, 2007) – The EnDat 2.2 encoder interface is now available with a clock frequency of 16 MHz for high-response applications with direct drives, especially those found in the electronics industry. The increase from 8 MHz to 16 MHz significantly reduces the access time to the position value, and makes shorter cycle times possible. This means that EnDat 2.2 is now the fastest purely serial interface for position encoders based on the RS 485 transmission characteristics.Interface electronics, with which the incremental encoder signals are made available to EnDat 2.2 as purely serial position information, are used in order to connect incremental encoders with 1- VPP interface to subsequent electronics compatible with EnDat 2.2.The EnDat interface, as a fast, bidirectional, purely serial, and therefore fully digital interface for high-response drives, yields significant savings in connection technology for the entire system as well as a reduction of required installation space in the machine. Since the analog scanning signals are digitized and subdivided directly at the place of measurement, characteristics of servo motors such as positioning accuracy and speed stability can be further improved. Along with the automatic self-configuration of encoders and drives in automation systems, the transmission of additional information, such as temperature, to the subsequent electronics is possible without additional wires. The online diagnostics capability of the interface ensures the availability of machines and facilities, and simplifies maintenance.HEIDENHAIN CORPORATION is the North American subsidiary of DR. JOHANNES HEIDENHAIN GmbH, a leading international manufacturer of precision measurement and control equipment. Our product line includes linear scales, rotary and angular encoders, digital readouts, digital length gages, CNC controls and machine inspection equipment.

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