| 摘要 |
PURPOSE:To improve working reproducibility and reliability by outputting the electrical condition of working power supply from memory against each plate thickness of a worked piece and controlling working power supply with it. CONSTITUTION:Working voltage Eg is compared with reference voltage Eo and work-feeding speed F is changed so that the working voltage Eg can approach the value of reference voltage Eo. The work-feeding speed F which is proportional to error voltage is balanced by the operation circuit 13 and is outputted as the mean value F' of the work-feeding speed. The mean value F' of this work-feeding speed is sent to the electrical condition controller 14. In this state, the optimum electrical condition Eo for the plate thickness which is currently being worked is selected and the new electrical condition Eo is commanded to the working power supply 3. |
