Patent ID: 9310227
Filing Date: 2016-04-12
CPC Classification: G01D

Claim Text:
1. Method for operating a multi-channel rotary encoder comprising at least one printed circuit board on which one or a plurality of functional units ( 1 , 1 a , 1 b , 1 c , 2 , 3 , 4 ) are arranged as integrated components and are interconnected, at least one position transducer ( 6 , 7 ) generating absolute and incremental measurement values which are each fed to a control unit ( 5 ) by means of at least one channel ( 37 , 38 ), the control unit being disposed as a management and safety monitoring unit and controlling a downstream-connected machine, characterized in that the rotary encoder consists of at least three functional units ( 1 , 2 , 3 ), that the position transducer ( 6 ) is arranged in a first functional unit ( 1 ) and generates absolute location-position values ( 9 ) in this functional unit ( 1 ), which are fed by a second functional unit ( 2 ), which is connected as an interface, as first secure data ( 39 ) by means of the first secure channel ( 37 ) to the control unit ( 5 ), and that the position transducer ( 6 ) feeds its incremental measurement values to a third functional unit ( 3 ) which generates absolute location-position values ( 8 ) by calculation and feeds said values ( 8 ) through the second functional unit ( 2 ) by means of a second secure channel ( 38 ) as second secure data ( 40 ) to the control unit ( 5 ) ( FIG. 1 ).