Document Type and Number:
Japanese Patent JPH04288
Kind Code:
B2
Abstract:
The PI controller for a blockable servo motor comprises a selector having a first, normal operating position in which a difference signal is fed to the I network. In the other position, the output of a subtraction member is fed to the I network. The inputs of the subtraction member receive the input and output of the servo motor. The selector is actuated by means of a comparator which also blocks the servo motor when the difference signal is of small absolute value. In this way, the servo motor is not operated as frequently and yet this does not appreciably impair the control accuracy.
Inventors:
RUDORUFU HERUZOTSUGU
Application Number:
JP18359481A
Publication Date:
January 07, 1992
Filing Date:
November 16, 1981
Export Citation:
Assignee:
GEBURU* ZURUTSUAA AG
International Classes:
H02P29/00; G05B5/01; G05B11/42; G05D3/12
Next Patent: INTEGRATED CIRCUIT FOR DRIVING MOTOR