Numerical control system with following error monitor

Details Numerical control system with following error monitor Numerical control system with following error monitor

1980-04-21

1982-06-08

Malzahn, David H.

Boots, shoes, and leggings

364175, G05B 1918

Patent

active

043342663

ABSTRACT:
A following error monitoring system for detecting axis positioning failure modes in a numerical control system and causing a cessation of movement as a result of the detecting of such failure mode. The system comprises an integration means and a time delayed negative feedback of the output of the integration means provides a "predicted following error" signal which is used to provide a comparison to a "error threshold signal" for determining unacceptable axis positioning deviation.

REFERENCES:
patent: 3798430 (1974-03-01), Simon et al.
patent: 3996454 (1976-12-01), Froyd
patent: 4096770 (1978-06-01), Tanner

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