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LAUNCHXL-F28379D: Question regarding VDC limits defined in dual axis sensored FOC project

Arun Kumar
Expert 1030 points
Part Number: LAUNCHXL-F28379D

Hello ,

In the dual axis sensored FOC project , in the file : dual_access_servo_driveuser.h

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#define M1_MAXIMUM_VOLTAGE 36.0 // DC bus maximum voltage (V)
#define M1_MINIMUM_VOLTAGE 5.0 // DC bus minimum voltage (V)
#define M1_VDCBUS_MAX 50.0 // maximum dc bus voltage for motor
#define M1_VDCBUS_MIN 10.0 // minimum dc bus voltage for motor
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I don't see where M1_MAXIMUM_VOLTAGE is used?

I see that it is assigned to  initMotorParameters(), voltageLimit = M1_MAXIMUM_VOLTAGE, but it is not used anywhere

.

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void initMotorParameters(MOTOR_Vars_t *pMotor, HAL_MTR_Handle mtrHandle)
{
HAL_MTR_Obj *obj = (HAL_MTR_Obj *)mtrHandle;
if(pMotor == &motorVars[0])
{
pMotor->ptrFCL = &fclVars[0];
pMotor->Ts = 0.001/M1_ISR_FREQUENCY;
pMotor->voltageLimit = (float32_t)(M1_MAXIMUM_VOLTAGE); // V
pMotor->currentLimit = (float32_t)(M1_MAXIMUM_CURRENT); // A
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I also tried reducing the limit (M1_MAXIMUM_VOLTAGE) to 25v and increasing the dc bus to 30v, but there was no effect and the motor ran successfully?