| 摘要 |
PURPOSE:To enable linear movement in an optional preset speed pattern and to perform fast control wherein oscillation generation is suppressed by using an extremely simple means. CONSTITUTION:An X and a Y shafts are driven according to the speed pattern depending upon a reference speed curve while the ratio of pulses for driving the X and Y shafts at intervals of unit time is held constant, and the sampling of feedback information from direction discriminating and counting circuits 14 and 15 and the latching of reference speed command information are performed with regard to the X and Y shafts simultaneously, so the smooth linear movement is possible. Further, a correction speed curve table is generated prior to the driving of each shaft after the command extents LX and LY of movement of the shafts are supplied from a host device 60, so only reading from an RAM4, addition and subtraction, writing, etc., are performed thereafter and the processing time is shortened greately, realizing the fast control. |
