Hi! Thank you for responding to my mail. I was simulating as you seed. I get from the model the maximum torque of 35Nm*m. This is ok for this motor. At this point the slip frequency is about 1Hz in the real motor is 9Hz. Starting torque is around 1Nm*m, what is wrong. I will send you a diagram of the torque. I thing there is a mistake in the model. I can not see it. Lovrenc