Other Parts Discussed in Thread: MOTORWARE
Hello All,
happy New Year. Looking Forward to coming year and working with TI stuff :-)
Using the motorware, I've been able to get my maxon Motor (Ecx Speed 22M) identifien (lab_2c) and running in Speed control (lab_5b).
However, the Motor is running hot an draws 4 times (1.2A) the rated current (0.3A) at the rated no load Speed (50 000 1/min).
After about 2 minutes, the Speed controller starts so become unstable, oscillatges and drops to 3500 1/min (in expression window)
Found this thread with a similiar situation:
but it does not have a solution.
I have mostly concentrated on Information for low inductance/high Speed Motors, but an stuck. With it being a high Speed Motor, I imagine that the Tuning is quite delicate, but I am not sure what Needs to be tweeked..
Any ideas?
The identified Motor paramters are:
#if (USER_MOTOR == Maxon_ECX_SPEED_22M)
#define USER_MOTOR_TYPE MOTOR_Type_Pm
#define USER_MOTOR_NUM_POLE_PAIRS (1)
#define USER_MOTOR_Rr (NULL)
#define USER_MOTOR_Rs (0.1186)
#define USER_MOTOR_Ls_d (1.993e-05)
#define USER_MOTOR_Ls_q (1.993e-05)
#define USER_MOTOR_RATED_FLUX (0.00811)
#define USER_MOTOR_MAGNETIZING_CURRENT (NULL)
#define USER_MOTOR_RES_EST_CURRENT (1.0)
#define USER_MOTOR_IND_EST_CURRENT (-1.0)
#define USER_MOTOR_MAX_CURRENT (5.36)
#define USER_MOTOR_FLUX_EST_FREQ_Hz (83.0)
Regards,
John