Controller for controlling robot body with power-off brake

Details Controller for controlling robot body with power-off brake Controller for controlling robot body with power-off brake

2008-06-10

2010-12-14

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Positional servo systems

With protective or reliability increasing features

C318S273000, C318S372000, C901S002000, C901S023000, C901S038000

Reexamination Certificate

active

07852030

ABSTRACT:
In a controller, a first switch unit establishes electrical connection between a power-off brake and a power source when a servomotor is energized. The electrical connection causes the power-off brake to be released. A second switch unit is provided between the power-off brake and the power source. The second switch unit establishes electrical connection between the power-off brake and the power source upon being manually operated during the servomotor being deenergized. A calculating unit calculates a driving speed of the joint by the servomotor. A determining unit determines whether the calculated driving speed of the joint is greater than a predetermined threshold speed. An interrupting unit interrupts a supply of electrical power from the power source to the power-off brake through the electrical connection established by the second switch unit when it is determined that the calculated driving speed of the joint is greater than the predetermined threshold speed.

REFERENCES:
patent: 4931711 (1990-06-01), Naruo
patent: 5394069 (1995-02-01), Danielson et al.
patent: 6091219 (2000-07-01), Maruo et al.
patent: 2008/0116828 (2008-05-01), Horikoshi et al.
patent: A-04-315593 (1992-11-01), None

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