| 摘要 |
PURPOSE:To change the optimum capacity without stopping the machining by dividing multiple capacitors in capacitor groups suitable for individual machining conditions and selecting capacitor groups by a numerical control unit. CONSTITUTION:Multiple capacitors CFa-CFn, CRa-CRn are divided in groups, and individual groups 10, 13 are set to capacities suitable for machining conditions by switches SFa-SFn, SRa-SRn. A relay 16 selects capacitor groups suitable for the required machining condition based on a command from an NC unit. Capacitor groups are not limited to two. Accordingly, the capacitor capacity can be changed without stopping the machining and resetting, thereby the machining efficiency can be improved. |
