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fuse keeps burning out!

hi, i'm working on High voltage motor control kit using f28335

i'm following HVPM sensorless guide

but i have trouble following level5A in the guide..

when i change the variable "lsw" to 2, the fuse in [M1] burns out!!

so i displaced it with a new one but the same thing happened.....

the capacity of the fuse used is 250V-10A

i'm generating DCbus power with AC 220V and using auxiliary power supply module for controlcard

SpeedRef is 0.3pu and while lsw=1, EstimatedSpeed is near 0.3pu

 

please help me!!