POSITION CONTROL APPARATUS

An absolute position detector comprises a resolver provided for a motor and a linear type position detector provided for the driven member. An absolute position of the member is obtained in accordance with outputs of the resolver and linear type position detector. An error correcting unit produces a...

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Bibliographic Details
Main Author YAMASHITA KAZUTAKA
Format Patent
LanguageEnglish
Published 20.04.1990
Edition5
Subjects
COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING
ELECTRICITY
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
GENERATION
MACHINE TOOLS
MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PERFORMING OPERATIONS
PHYSICS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TRANSPORTING
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Summary:An absolute position detector comprises a resolver provided for a motor and a linear type position detector provided for the driven member. An absolute position of the member is obtained in accordance with outputs of the resolver and linear type position detector. An error correcting unit produces a correction signal corresponding to a detecting position. The correction signal is added to a position signal detected by the absolute position detector to produce a sum signal. The sum signal is subtracted from an instruction position register for producing a difference.
Bibliography:Application Number: KR19860008655