MANUAL OPERATION SYSTEM FOR MACHINE CONTROLLED BY NUMERICAL CONTROL UNIT

摘要

PCT No. PCT/JP86/00223 Sec. 371 Date Dec. 30, 1986 Sec. 102(e) Date Dec. 30, 1986 PCT Filed Apr. 30, 1986 PCT Pub. No. WO86/06324 PCT Pub. Date Nov. 6, 1986.Disclosed is a manual operation system for a machine controlled by a numerical control apparatus (1). The same operation pattern as in an automatic operation mode can be manually performed according to the manual operation system. When a programmable controller central processing unit (6) determines that a manual instruction from selection switches (33a-33g, 34a, 34b) is kept enabled, the machine is controlled according to the manual operation program including a predetermined portion of the automatic operation program, thereby executing the same operation as in the automatic mode from the current position.