AC Induction Motor Scalar Control

#define RS 11.05 // Stator resistance (ohm)
#define RR 6.11 // Rotor resistance (ohm)
#define LS 0.316423119 // Stator inductance (H)
#define LR 0.316423119 // Rotor inductance (H)
#define LM 0.2939397 // Magnatizing inductance (H)
#define POLES 4 // Number of poles

Hello Everyone,

I'm working with AC Induction Scalar Control Project. 

For that I've imported the code from control-suit.

I've kept the value of AC Induction parameters (LR , RR, etc.) as it was, just change the value of POLES, RPM in the code as I don't have the datasheet for my AC Induction Motor. 

I've set the Build-level = 3, after verifying the SVM and Sine (between two winding) waveform and calibrate the feedback current in previous two build-levels. 

Now I've set the Build-level = 3, progressively I'm increasing the value of SpeedRef from 0.1 pu (IQ24) to 0.4 pu (IQ24) from Watch-window. I'm observing the Sine wave by use of CCS Graph and the value of vhz1.Freq from watch-window too. 

For, SpeedRef from 0.1 pu (IQ24) to 0.3 pu (IQ24), the value of vhz1.Freq < 0.5 pu (IQ24), and sine wave is proper, but motor can't rotate.

But for, SpeedRef from 0.35 pu and above, the value of vhz1.Freq > 0.5 pu (IQ24), and sine wave is not proper, but motor starts to rotate on specified speed. (FYI: vhz1.HighFreq = _IQ(0.5);) 

my Qs are;

1. Why the energized winding lost the shape of sine wave? 
2. When the energized winding has the sine wave, motor can't rotate?
3. Is there any issue regarding the motor parameters?
4. Should I change in the line vhz1.HighFreq = _IQ(0.5);?