Hengstler Gmbh

Johann Buecher

Martin Linden

Wolfgang Klaiber

Siegfried Held

Uwe Grigo

Andreas Woehrstein

Method for digital, bidirectional data transmission between a position measuring system (-) and a motor control device () and/or an evaluation unit based on the transmission of frames () of a predefined bit length in chronologically sequential time slots (-), wherein a primary master () communicates via a two wire bus line () with the position measuring system (-) and/or the motor unit () and/or the evaluation unit with a primary slave () disposed there, and that additional sub-slaves () can be coupled in parallel to the primary slave (), which sub-slaves communicate on the same bus line (), which the primary master () uses with the primary slave ().

Data transmission method between a primary master and primary slave via a bus line and between sub-slaves via the same bus line

Method for operating a multi-channel rotary encoder comprising at least one printed circuit board on which one or a plurality of functional units () are arranged as integrated components and are interconnected, at least one position transducer () generating absolute and incremental measurement values which are each fed to a control unit () by means of at least one channel (), the control unit being disposed as a management and safety monitoring unit and controlling a downstream-connected machine, wherein the rotary encoder consists of at least three functional units (), that the position transducer () is arranged in a first functional unit () and generates absolute location-position values () in this functional unit (), which are fed by a second functional unit (), which is connected as an interface, as first secure data () by means of the first secure channel () to the control unit (), and that the position transducer () feeds its incremental measurement values to a third functional unit () which generates absolute location-position values () by calculation and feeds said values () through the second functional unit () by means of a second secure channel () as second secure data () to the control unit () (FIG.).

Multi-channel rotary encoder

A capacitive rotation sensor for detecting the position of an object moving relative to a stationary object, comprising a shaft rotatably supported in a housing flange, said shaft being connected integral in rotation therewith to a rotor to which, separated by an air gap, a stator situated opposite thereto is assigned, wherein at least the rotor, the stator and an evaluation circuit are enclosed by an electrically conductive cap, wherein a stator surface is arranged on the underside of a circuit board and the stator surface has assigned thereto, situated opposite thereto and separated by the air gap, a non-rotation-symmetrical rotor disc which, in turn, is fixed on a rotor support, said rotor support being fastened highly precisely on the outer periphery of the shaft so as to be integral in rotation therewith.

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Aldingen, Germany

Johann Buecher