| 摘要 |
PURPOSE:To heighten a reliability, by means of generating an alarm of anomalousness detection for the time when more than two program selective commands are simultaneously present or when all commands simultaneously not present in a plurality of the information lines for transmitting a program selective command. CONSTITUTION:With a program indicated from a read circuit 15 on the basis of a program selective command 23 from a processing program P1 to Pn in a memory unit 14, a corresponding program is given to a machine tool 20 through the read circuit 15, input register 16, interpolator 17, for processing an operation of the actual mobile command value, and a servo-circuit 18. At this time, in accordance with a workpiece within a machine tool main unit 21, a program selective switch 23 is operated to make the processing. When more than two of the processing programs P1 to Pn in the memory unit 14 are simultaneously directed or when any of them not directed, an alarm is inputted to the read circuit 15 from a check circuit 19. |
