Yes, I came to know one has to be connected to set speed and the other terminal has to be for the mechanical load. The mechanical load might include torque "F_ROTB" and mass "MASS_ROTB" and speed "V_ROT". If you reverse the speed and mechanical load connections motor will rotate in the opposite direction. 

However, the induced voltages across windings are not balanced and showing DC offset as well, the torque also fluctuating and average torque is showing as zero. 



I have excited the imported model from maxwell with AC current sources to see it's functioning and then will proceed to build controller. 

The maxwell design or FEA of machine has shown promising results but things have changed when I imported into simplorer with external excitation. 

I really appreciate if anyone can suggest inputs on the same!