LAUNCHXL-F2800137: LAUNCHXL-F2800137+DRV5353公版电机转不起来

liang zuxing

Part Number: LAUNCHXL-F2800137
Other Parts Discussed in Thread: C2000WARE

软件采用C:\ti\c2000\C2000Ware_MotorControl_SDK_4_02_01_00\solutions\universal_motorcontrol_lab\f280013x工程，硬件采用LAUNCHXL-F2800137+DRV5353公版电机转不起来，根据TI开发文档spruj26-Universal Motor Control Project and Lab User’s Guide，设置DMC_BUILDLEVEL DMC_LEVEL_1，编译烧录debug->resume,systemVars.flagEnableSystem符合开发文档自动变成1，然后修改motorVars_M1.flagEnableRunAndIdentify为1，motorVars_M1.faultMtrPrev.bit.overvoltage变成了1，查找代码，initMotor1CtrlParameters()初始化时设置的objSets->overVoltageFault_V = USER_M1_OVER_VOLTAGE_FAULT_V;为40V，runMotorMonitor()中判断条件中if(obj->adcData.VdcBus_V > objSets->overVoltageFault_V)确是成立的，导致motorVars_M1.faultMtrPrev.bit.overvoltage被设置成了1. 实际上我的电源是24V，bj->adcData.VdcBus_V采样值是23点几V，objSets->overVoltageFault_V在判断条件这里变成了0. 请问这个问题怎么解啊？

2 年多前

0 Ben Qin 2 年多前

TI__Mastermind 39885 points

你好，user guide 中推荐的电压是多少？请按照user guide推荐的电压来。

0 Ben Qin 2 年多前

TI__Mastermind 39885 points

你好，user guide 中推荐的电压是多少？请按照user guide推荐的电压来。

0 liang zuxing 2 年多前回复 Ben Qin

Prodigy 180 points

从user guide 中截图看，dcData.VdcBus_V采样值是23点几V可以确定推荐值是24V。代码默认的电压设置如下：

//! \brief DC bus over voltage threshold
#define USER_M1_OVER_VOLTAGE_FAULT_V (40.0f)

//! \brief DC bus over voltage threshold
#define USER_M1_OVER_VOLTAGE_NORM_V (36.0f)

//! \brief DC bus under voltage threshold
#define USER_M1_UNDER_VOLTAGE_FAULT_V (10.0f)

//! \brief DC bus under voltage threshold
#define USER_M1_UNDER_VOLTAGE_NORM_V (12.0f)

电机初始化里按照上面的值设置：

objSets->overVoltageFault_V = USER_M1_OVER_VOLTAGE_FAULT_V;
objSets->overVoltageNorm_V = USER_M1_OVER_VOLTAGE_NORM_V;
objSets->underVoltageFault_V = USER_M1_UNDER_VOLTAGE_FAULT_V;
objSets->underVoltageNorm_V = USER_M1_UNDER_VOLTAGE_NORM_V;

问题焦点是runMotorMonitor()为什么会判断出obj->faultMtrNow.bit.overVoltage = 1？

// Check if DC bus voltage is over threshold
if(obj->adcData.VdcBus_V > objSets->overVoltageFault_V)
{
if(obj->overVoltageTimeCnt > objSets->voltageFaultTimeSet)
{
obj->faultMtrNow.bit.overVoltage = 1;
}
else
{
obj->overVoltageTimeCnt++;
}
}