| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that there are a necessity of setting an integrated time constant by repeating, impossibility of avoiding a wind-up phenomenon due to a saturation of an operating amount, different responses from a low speed to a high speed and from a high speed to a low speed and the like in a conventional method for turning ON/OFF an operation of a speed integrating controller according to limited judging result by the operating amount. SOLUTION: A method for controlling a speed of a motor having a speed error arithmetic means 11 for calculating a speed error by subtracting a detected speed from a command speed and a speed gain controller 2 for calculating a command torque by multiplying a speed gain by the speed error and having the speed integrating controller 202 comprises the step of changing the integrating time constant of the controller 202 in response to a frequency of the speed. |
