| 摘要 |
PURPOSE:To make it possible to know the state of punching press work, etc., judging from a hue of color by adjusting the brightness of the three primary colors at the time of additive mixture of colors corresponding to the state display element of a supervised unit. CONSTITUTION:When a press is operating normally, regulators 13, 14 and 15 are so adjusted that the hue of the part where the three primary colors on display board 16 overlaps one another will become white. For example, if the peak value of a vibrating waveform exceeds the reference peak value of peak-value comparator 11 by (epsilonP), filament 5 increases in brightness by (epsilonP) and, in consequence, the green color increases which passes through green filter 2. Consequently, the white color at the center of display board 16 changes into green. |
