Patent ID: 6507760
Filing Date: 2003-01-14
Classification: G05B

Abstract:
A numerical control for machine tools or robots comprising:a control unit comprising a motion control unit and a current control unit; an input device connected to said control unit via a connecting line so as to be spatially separated from said control unit and wherein a consent signal or a shut-off signal is transmitted from input device to said control unit via said connecting line, wherein said input device comprises: an input/output component that generate signals; a first processor connected with said input/output component so as to receive said generated signals; a second processor connected with said input/output component and independent from said first processor, wherein said second processor receives said generated signals and comprises a comparator device for comparing the generated signals for conformity; a consent signal generator that generates said consent signal and is connected with said comparator device and, via said connecting line, with said control unit; and a shut-off signal generator that generates a signal that results in said shut-off signal and is connected with said comparator device.