| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a speed control device suitable for variable speed control of a motor. <P>SOLUTION: A speed control device 10 comprises a speed instruction generating means 11, an adder 12, a speed control means 13, a current control means 14, an inertia estimating means 15, an inertia setting means 16, a switching means 17, and a constant setting means 18. If acceleration or deceleration drive operation of a motor 1 for estimating the inertia moment of the object to be driven and the motor is possible, the operation is executed to derive an inertia moment estimated value (J<SP>#</SP>). Based on the inertia moment estimated value (J<SP>#</SP>), a proportional gain K<SB>P</SB>of the speed control means 13 is set through the switching means 17 and the constant setting means 18. If the drive operation is not possible, a proportional gain K<SB>P</SB>of the speed control means 13 is set through the switching means 17 and the constant setting means 18 based on the inertia moment manual set value (J<SP>#</SP>). <P>COPYRIGHT: (C)2008,JPO&INPIT |
