Stepper motor homing using a soft stop

Details Stepper motor homing using a soft stop Stepper motor homing using a soft stop

1999-02-22

2000-05-16

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Span or set point adjustment

G01R 1714

Patent

active

060620633

ABSTRACT:
In a preferred embodiment, an instrument display, including: indicator apparatus moveable to indicate a value on a scale; driving apparatus operatively connected to move the indicator apparatus along a path of movement; control apparatus to provide driving signals to the driving apparatus and to cause the driving apparatus to operate at a selected one of a normal torque condition and a reduced torque condition; and soft stop homing apparatus operatively connected to the driving apparatus to cause cessation of movement of the driving apparatus when the driving apparatus is operated at the reduced torque condition and the soft stop homing apparatus is engaged at a homing position and to permit free movement of the driving apparatus when the driving apparatus is operated at the normal torque condition even when the soft stop homing apparatus is engaged.

REFERENCES:
patent: 5267527 (1993-12-01), Totsuka
patent: 5553480 (1996-09-01), Rose

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