Method and apparatus for controlling direction reversal in elect

Details Method and apparatus for controlling direction reversal in elect Method and apparatus for controlling direction reversal in elect

1983-06-24

1986-01-28

Albritton, C. L.

Electric heating

Metal heating

Cutting or disintegrating

219 69C, 219 69S, 318563, 364167, 364183, 364474, B23P 112, G05B 902

Patent

active

045673420

ABSTRACT:
A system for reversing the direction of an electric discharge machine in response to a short-circuit signal. A controller responds to the short circuit signal by generating a command signal with a magnitude greater than a stored error between a commanded value and a number of feedback pulses produced by rotation of a motor which drives the electrode. The sign of the generated command signal is opposite to that of the stored error so that the stored error is converted into a value capable of reversing the direction of the electrode without delay.

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patent: 4321516 (1982-03-01), Ohtuska
patent: 4471443 (1984-09-01), Kinoshita et al.
patent: 4484287 (1984-11-01), Gamo et al.

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