• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Subscribers 32 subscribers
  • Views 135 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

MCF8329A: MCF8329A Smart tune Zero Division error and Motor current limit configuration

Ilavarasan M
Prodigy 50 points

Part Number: MCF8329A

Hi,
Recently we have got the MCF8329A1LQRRYRQ1 Dev board for our upcomming project, Details below.
Application : Fan drive
Rated voltage : 14V (Min 8V, Max 16V)
Rated Current : 8A (Max 11A)
Rated speed : 6050 ± 450 RPM
Rotor poles : 8
Resistance : 120 mOhm
Inductance : 20 mhenry
I have connected the Dev board with the motor studio GUI and the GUI detects the board and the hardware set-up is done according to the recommendation. When i try to run the motor using smart tune option it shows a error as zeroDivision error and upon study found that the motor parameter is low for smart tune option so tried to run the motor using manual configuration using potentiometer and the motor is spinning but i am not sure what the motor max current is set and where to find the configuration. I have attached the json file FYR. In my final output i want to run the motor based on the PWM input. Currently i want to configure to run the motor at rated speed with rated current when i try to run the motor using potentiometer it run above 11.5 A and shows current_loop_Saturation fault. i want to understand the configuration so that i could work on further tuning.
 
IMG20260211084727.jpg  Error.PNG 
{
"signature":"oneui-register-data",
"data":[
[
{
"idx":0,
"id":"ISD_CONFIG",
"value":"0x7422D4A1",
"addr":"0x00000080"
},
{
"idx":1,
"id":"REV_DRIVE_CONFIG",
"value":"0x48300000",
"addr":"0x00000082"
},
{
"idx":2,
"id":"MOTOR_STARTUP1",
"value":"0x08649410",
"addr":"0x00000084"
},
{
"idx":3,
"id":"MOTOR_STARTUP2",
"value":"0x2C81C806",
"addr":"0x00000086"
},
{
"idx":4,
"id":"CLOSED_LOOP1",
"value":"0x1C5B84B8",
"addr":"0x00000088"
},
{
"idx":5,
"id":"CLOSED_LOOP2",
"value":"0x00003B0F",
"addr":"0x0000008A"
},
{
"idx":6,
"id":"CLOSED_LOOP3",
"value":"0x1BEC982B",
"addr":"0x0000008C"
},
{
"idx":7,
"id":"CLOSED_LOOP4",
"value":"0x7ACA1770",
"addr":"0x0000008E"
},
{
"idx":8,
"id":"REF_PROFILES1",
"value":"0x00000000",
"addr":"0x00000094"
},
{
"idx":9,
"id":"REF_PROFILES2",
"value":"0x00000000",
"addr":"0x00000096"
},
{
"idx":10,
"id":"REF_PROFILES3",
"value":"0x80000004",
"addr":"0x00000098"
},
{
"idx":11,
"id":"REF_PROFILES4",
"value":"0x00000000",
"addr":"0x0000009A"
},
{
"idx":12,
"id":"REF_PROFILES5",
"value":"0x00000000",
"addr":"0x0000009C"
},
{
"idx":13,
"id":"REF_PROFILES6",
"value":"0x00000000",
"addr":"0x0000009E"
}
],
[
{
"idx":0,
"id":"FAULT_CONFIG1",
"value":"0xBDD02587",
"addr":"0x00000090"
},
{
"idx":1,
"id":"FAULT_CONFIG2",
"value":"0x71C04888",
"addr":"0x00000092"
}
],
[
{
"idx":0,
"id":"INT_ALGO_1",
"value":"0x09466A3D",
"addr":"0x000000A0"
},
{
"idx":1,
"id":"INT_ALGO_2",
"value":"0x42140261",
"addr":"0x000000A2"
}
],
[
{
"idx":0,
"id":"PIN_CONFIG",
"value":"0xD80C8248",
"addr":"0x000000A4"
},
{
"idx":1,
"id":"DEVICE_CONFIG1",
"value":"0x80100000",
"addr":"0x000000A6"
},
{
"idx":2,
"id":"DEVICE_CONFIG2",
"value":"0x03E8D00C",
"addr":"0x000000A8"
},
{
"idx":3,
"id":"PERI_CONFIG1",
"value":"0x0698C5C0",
"addr":"0x000000AA"
},
{
"idx":4,
"id":"GD_CONFIG1",
"value":"0x00008078",
"addr":"0x000000AC"
},
{
"idx":5,
"id":"GD_CONFIG2",
"value":"0x80000668",
"addr":"0x000000AE"
}
],
[
{
"idx":0,
"id":"GATE_DRIVER_FAULT_STATUS",
"value":"0x00000000",
"addr":"0x000000E0"
},
{
"idx":1,
"id":"CONTROLLER_FAULT_STATUS",
"value":"0x00000000",
"addr":"0x000000E2"
}
],
[
{
"idx":0,
"id":"ALGO_STATUS",
"value":"0x2BFD0004",
"addr":"0x000000E4"
},
{
"idx":1,
"id":"MTR_PARAMS",
"value":"0x00000000",
"addr":"0x000000E6"
},
{
"idx":2,
"id":"ALGO_STATUS_MPET",
"value":"0x0A000000",
"addr":"0x000000E8"
}
],
[
{
"idx":0,
"id":"ALGO_CTRL1",
"value":"0xAA500000",
"addr":"0x000000EA"
}
],
[
{
"idx":0,
"id":"ALGO_DEBUG1",
"value":"0x00000000",
"addr":"0x000000EC"
},
{
"idx":1,
"id":"ALGO_DEBUG2",
"value":"0x00000000",
"addr":"0x000000EE"
},
{
"idx":2,
"id":"CURRENT_PI",
"value":"0x03050364",
"addr":"0x000000F0"
},
{
"idx":3,
"id":"SPEED_PI",
"value":"0x00000000",
"addr":"0x000000F2"
},
{
"idx":4,
"id":"DAC_1",
"value":"0x00000000",
"addr":"0x000000F4"
}
],
[
{
"idx":0,
"id":"ALGORITHM_STATE",
"value":"0x00000000",
"addr":"0x00000196"
},
{
"idx":1,
"id":"FG_SPEED_FDBK",
"value":"0x00232A32",
"addr":"0x0000019C"
},
{
"idx":2,
"id":"BUS_CURRENT",
"value":"0x00000000",
"addr":"0x0000040E"
},
{
"idx":3,
"id":"PHASE_CURRENT_A",
"value":"0xFD880000",
"addr":"0x0000043C"
},
{
"idx":4,
"id":"PHASE_CURRENT_B",
"value":"0x00180000",
"addr":"0x0000043E"
},
{
"idx":5,
"id":"PHASE_CURRENT_C",
"value":"0x02600000",
"addr":"0x00000440"
},
{
"idx":6,
"id":"CSA_GAIN_FEEDBACK",
"value":"0x00000003",
"addr":"0x00000450"
},
{
"idx":7,
"id":"VOLTAGE_GAIN_FEEDBACK",
"value":"0x00000001",
"addr":"0x00000458"
},
{
"idx":8,
"id":"VM_VOLTAGE",
"value":"0x01DF0000",
"addr":"0x0000045C"
},
{
"idx":9,
"id":"PHASE_VOLTAGE_VA",
"value":"0x02149B09",
"addr":"0x00000460"
},
{
"idx":10,
"id":"PHASE_VOLTAGE_VB",
"value":"0x0213BD55",
"addr":"0x00000462"
},
{
"idx":11,
"id":"PHASE_VOLTAGE_VC",
"value":"0x02149B09",
"addr":"0x00000464"
},
{
"idx":12,
"id":"SIN_COMMUTATION_ANGLE",
"value":"0xFA69B8A0",
"addr":"0x000004AA"
},
{
"idx":13,
"id":"COS_COMMUTATION_ANGLE",
"value":"0x05B60F78",
"addr":"0x000004AC"
},
{
"idx":14,
"id":"IALPHA",
"value":"0x0E200000",
"addr":"0x000004CC"
},
{
"idx":15,
"id":"IBETA",
"value":"0x0B4B5EBE",
"addr":"0x000004CE"
},
{
"idx":16,
"id":"VALPHA",
"value":"0xFFF635F6",
"addr":"0x000004D0"
},
{
"idx":17,
"id":"VBETA",
"value":"0x009DC015",
"addr":"0x000004D2"
},
{
"idx":18,
"id":"ID",
"value":"0x005CFFA7",
"addr":"0x000004DC"
},
{
"idx":19,
"id":"IQ",
"value":"0x120F03C7",
"addr":"0x000004DE"
},
{
"idx":20,
"id":"VD",
"value":"0xFF8A88D1",
"addr":"0x000004E0"
},
{
"idx":21,
"id":"VQ",
"value":"0x006A0F05",
"addr":"0x000004E2"
},
{
"idx":22,
"id":"IQ_REF_ROTOR_ALIGN",
"value":"0x00000000",
"addr":"0x0000051A"
},
{
"idx":23,
"id":"SPEED_REF_OPEN_LOOP",
"value":"0x00000000",
"addr":"0x00000532"
},
{
"idx":24,
"id":"IQ_REF_OPEN_LOOP",
"value":"0x1332EAC0",
"addr":"0x00000542"
},
{
"idx":25,
"id":"SPEED_REF_CLOSED_LOOP",
"value":"0x00000000",
"addr":"0x000005D0"
},
{
"idx":26,
"id":"ID_REF_CLOSED_LOOP",
"value":"0x00000000",
"addr":"0x0000060A"
},
{
"idx":27,
"id":"IQ_REF_CLOSED_LOOP",
"value":"0x00000000",
"addr":"0x0000060C"
},
{
"idx":28,
"id":"ISD_STATE",
"value":"0x00000005",
"addr":"0x000006B0"
},
{
"idx":29,
"id":"ISD_SPEED",
"value":"0x000000A1",
"addr":"0x000006BA"
},
{
"idx":30,
"id":"IPD_STATE",
"value":"0x00000000",
"addr":"0x000006E4"
},
{
"idx":31,
"id":"IPD_ANGLE",
"value":"0x00000000",
"addr":"0x0000071A"
},
{
"idx":32,
"id":"ED",
"value":"0x00000000",
"addr":"0x0000075C"
},
{
"idx":33,
"id":"EQ",
"value":"0x00000000",
"addr":"0x0000075E"
},
{
"idx":34,
"id":"SPEED_FDBK",
"value":"0x00000000",
"addr":"0x0000076E"
},
{
"idx":35,
"id":"THETA_EST",
"value":"0x00000000",
"addr":"0x00000774"
}
]
]
}

 

  • 0
    TI__Expert 6240 points

    Hi,

    Could you please attempt to run SmartTune for your motor?

    Upon successful completion of SmartTune, you will obtain a functional motor tuning file.

    Configure PIN_CONFIG->SPEED_MODE to "Controlled by duty cycle" to enable motor speed control using PWM duty cycle commands.

    A saturation fault will be triggered if the motor phase current reaches the current limit configured in FAULT_CONFIG1->ILIMIT

    Thanks,

    Dhinesh

  • 0 in reply to Dhinesh
    Prodigy 50 points

    Hello Dhinesh, Thank you for your reply.

    As mentioned earlier when using smart tune option it shows a error as zero Division error. For PIN_CONFIG to controlled by duty cycle will try it. Could you please help to understand the max speed and current configuration so that I could work on further tuning.

    Regards,

    Ilavarasan

  • 0 in reply to Ilavarasan M
    TI__Expert 6240 points

    Hi,

    What version of Motor Studio are you currently using?

    Have you reviewed the MCF8329 tuning guide, which provides detailed information regarding maximum speed settings and various current threshold configurations?

    Thanks,

    Dhinesh

  • +1 in reply to Dhinesh
    TI__Prodigy 480 points

    Hi,

    Issue with the zero division error was solved over mail (issue was with the shunt resistor value which was erroneously input as 0.005 mOhm instead of 5 mOhm). For now this thread can be closed.

    Regards,
    Param