PURPOSE: To realize a control system for feed system divices with the half time precision of feed count by operating AND between timing signals dependent upon mechanical clocks and contents of a feed count code.
CONSTITUTION: When feed count decode FCD2 and half dot H of machine emitter signal MEMT synchronized with mechanical clocks generated from a code board are loaded to counter CTR by the AND output, exciting signal A0 of magnet MG1 for feed rises if write clock WTCL and branch and link instruction Ai enter. When FCD4 is loaded, counter CTR is reset to break signal A0 by WTCL and link reset signal Ai. Thus, counter CTR is set by half feed count HFC and is reset by the next HFC, so that the magnet can be controlled with the half time precision of feed counter FC.
FUKUSHIMA TOSHIO
FUJIMORI TOMIYUKI
