| 摘要 |
<p>A motor control device, comprising a motor (4) for driving a load machine, a rotation detector (3) for detecting the rotating angle of the motor (4), and a servo control device (2) for controlling the motor (4), wherein a calculation device (1) automatically calculates a projected shape producing resonance frequencies and antiresonance frequencies from frequency characteristics provided from operation instruction signals (8) and rotation detector signals (9), calculates the errors of the frequency characteristics provided by measurement to the frequency characteristics calculated by using the frequency characteristic expression (20) of a 2-inertia model and a rigid body model, respectively, and compares the minimum errors between the calculated values and measured values of the frequency characteristics of the 2-inertia models and the rigid body model, respectively, to automatically model the characteristics of the machine, whereby a machine model can be easily predicted without using an expensive measuring device even if an operator does not have advanced expertise and experience, and an inexpensive machine model predicting device of the motor control device can be provided.</p> |
