| 摘要 |
PURPOSE:To improve operational efficiency by easily re-starting a machine when abnormality occurs during machining operations. CONSTITUTION:With the progress of machining operations by pressing a starting switch ST, count values of the counter 32 are added in succession. When abnormality occurs during machining operations, the N/C machine is stopped to put it in good order and is set at the original position with N/C program set in the initial state. Then, with a push given to the starting switch ST, the N/C machine is subjected to optional block skip. In this case, count values of the counter 31 are added in succession, and when these count values agree with those of the counter 32, relay- XC is energized to resume boring operations. |
