VALVE CONTROLLING METHOD

PROBLEM TO BE SOLVED: To provide a valve control method comprising a new means to align the point of origin of a stepping motor without using a butting method. SOLUTION: The valve position (N3) of the stepping motor is confirmed by an electronic sensor, and the motor is rotated in the minus directio...

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Bibliographic Details
Main Authors MIYAGAWA SEIICHI, HANANO JIRO
Format Patent
LanguageEnglish
Published 03.10.2002
Edition7
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DEVICES FOR VENTING OR AERATING
ELECTRICITY
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
GENERATION
HEATING
LIGHTING
MECHANICAL ENGINEERING
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a valve control method comprising a new means to align the point of origin of a stepping motor without using a butting method. SOLUTION: The valve position (N3) of the stepping motor is confirmed by an electronic sensor, and the motor is rotated in the minus direction (CCW direction) for the number of steps (N3) corresponding to this position so that the initial alignment of point of origin is established. If the electronic sensor is erroneous, the initial alignment of the point of origin is made by the butting method.
Bibliography:Application Number: JP20010083305