Tool/software:
Greetings! I have my hardware verified and running with a small motor with internal break. So I put a bigger motor - three phase internal break (conical rotor). The problem is immediately after I turn on the main loop(flagEnableSys=1 and flagRunIdentAndOnLine=1). the flag flagRunIdentAndOnLine is set to 0 by the program and nothing happens. This happens just after the offset calibration. Here are the motor parameters:
#elif (USER_MOTOR == ELMOT_KG2412_6) #define USER_MOTOR_TYPE MOTOR_TYPE_INDUCTION #define USER_MOTOR_NUM_POLE_PAIRS (6) #define USER_MOTOR_Rr_Ohm (0.5757) #define USER_MOTOR_Rs_Ohm (1.737) #define USER_MOTOR_Ls_d_H (0.0037) #define USER_MOTOR_Ls_q_H (0.0037) #define USER_MOTOR_RATED_FLUX_VpHz (0.8165*230.0/60.0) /*3.129916*/ #define USER_MOTOR_MAGNETIZING_CURRENT_A (13.84) #define USER_MOTOR_RES_EST_CURRENT_A (12.5) #define USER_MOTOR_IND_EST_CURRENT_A (NULL) #define USER_MOTOR_MAX_CURRENT_A (25.0) #define USER_MOTOR_FLUX_EXC_FREQ_Hz (5.0) // Number of lines on the motor's quadrature encoder #define USER_MOTOR_NUM_ENC_SLOTS (1000) #define USER_MOTOR_FREQ_MIN_HZ (5.0) // Hz #define USER_MOTOR_FREQ_MAX_HZ (60.0) // Hz #define USER_MOTOR_FREQ_LOW_HZ (5.0) // Hz #define USER_MOTOR_FREQ_HIGH_HZ (60.0) // Hz #define USER_MOTOR_VOLT_MIN_V (50.0) // Volt #define USER_MOTOR_VOLT_MAX_V (230.0) // Volt #define USER_MOTOR_RPM (920)
The fault I receive is faultUse = OverCurrent. I double checked that if use smaller motor with the same current settings everything works fine. I tried to increase the USER_MOTOR_MAX_CURRENT_A to 40A - no luck!
My current setting in the user.h is #define USER_ADC_FULL_SCALE_CURRENT_A ((float32_t)(132.0)) which way above 40A. My current sensors are MLX91221KDF-ABR-050-SP. This value (132A) is calculated this way
MLX91221KDF-ABR-050-SP //0.025mV/A
uC supply voltage 3.3V
//3.3/0.025= 132
Do you see anything odd in these settings? I suppose there is the problem, but I am not sure where to look for. The inital USER_setParams has been passed every time. Can you give me an advice which value should I try to change?
Thanks!
