The combination of this distance and the swing of the object during driving brings great trouble to the detection and control of the grating ruler. When the driving object swings to the installation side of the grating ruler, the grating ruler mistakenly thinks that the moving speed is insufficient, and the system gives acceleration signal, and the driven object immediately swings to the other side. When the grating ruler is detected, it mistakenly thinks that the moving speed is too fast, and the system will give a deceleration signal. In this way, the control of each linear coordinate axis of CNC machine tool is not improved It aggravates the vibration of the driving object, which leads to the strange phenomenon that the full closed-loop is inferior to the semi-closed-loop.
Kevin
kevin@jntime.com
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