公开(公告)号：US3569682A

公开(公告)日：1971-03-09

申请号：US3569682D

申请日：1968-02-02

Applicant: GEN ELECTRIC

Inventor： TIPTON JAMES P ,  LOGERWELL DONALD L

IPC: G05B19/19

CPC classification number: G05B19/195 ,  G05B2219/34122 ,  G05B2219/50204

Abstract: A control system is described for commanding motion of a machine movable member along two paths having a common axis in response to the generation of first and second feedrate signals indicative of the desired rate of travel of the machine along the two paths. First and second function generators convert the first and second feedrate signals into first and second command signals, each of which includes a component signal which commands motion of the machine movable member along the common axis. A gated reversible counter is connected to each of the function generators, the magnitude and direction of its count being indicative of the rates of generation of each of the common axis component command signals. A logic network is connected to the output of the gated reversible counter and to the inputs of the function generators and functions to stop the transmission of either of the feedrate signals in response to an output from the gated reversible counter indicative of a predetermined count therein.