| 摘要 |
PURPOSE:To intuitively catch a load condition of a driving motor, by using a color cathode ray tube (CRT) to classifiably display a load condition of an NC machine tool by color. CONSTITUTION:Load detector units 8, 9 are provided to a main spindle motor 6 or Z-axis motor 7 of an NC machine tool, here a detected signal of load condition is input to a load condition display control unit 11 through a converter unit 10, converted to analog graphic display data, further added with classifying information by color in accordance with the load value in a color classifying control unit 12 and graphically displayed to a display device 3. |
