Part Number:TMS320F28027
During identification my motor runs well and my header file is attached.
After identification however, when i try to run the motor in Lab3a, the motor is running very jerky. I tried to move onto to the torque controller lab4 which seems to be able to run the motor better.
However, when I set:
gMotorVars.Flag_enableRsRecalc = true;
gMotorVars.Flag_enableForceAngle = false;
gMotorVars.Flag_enableOffsetcalc = true;
my motor seems to be very jerky and not run.
When I leave :
gMotorVars.Flag_enableRsRecalc = false;
gMotorVars.Flag_enableForceAngle = true;
gMotorVars.Flag_enableOffsetcalc = true;
The motor does not run at low speed. I was able to provide enough torque before for the application that I am using this motor for. Now the motor seems to provide almost no torque even in the torque controller mode.
I know that this motor is capable of providing enough torque for my application since I have been able to do it several times before.
I am also able to control the motor very well with my hall effect sensor feedback with position control using Lab 5b. However even increasing speed does not help increase the torque. I am able to stop the stator at high speed, but I can still hear the motor trying to spin out and the motor temperature get to almost 10 degrees below the overheat temp.
What could be the issue?
I am using the 28027F with the 8305EVM motor driver.
Regards,
Rajan Joshi(Please visit the site to view this file)