Positioning control system

Details Positioning control system Positioning control system

1995-08-31

1997-09-02

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

With protective or reliability increasing features

318626, 318466, H01L 2168, G05B 902

Patent

active

056636229

ABSTRACT:
A positioning control system for positioning a movement member with respect to a predetermined position on the basis of feedback control of a driving system for the movement member, includes an extraordinary movement detecting device for detecting extraordinary movement of the movement member, and an emergency stoppage servo device for applying a signal for stopping the driving system in response to output of a detection signal from the extraordinary movement detecting device.

REFERENCES:
patent: 3590529 (1971-07-01), Purdy
patent: 3609390 (1971-09-01), Feldman
patent: 4234833 (1980-11-01), Barrett
patent: 4514670 (1985-04-01), Fassel et al.
patent: 4910445 (1990-03-01), Borrmann
patent: 4918360 (1990-04-01), Tanaka et al.

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