Part Number:BOOSTXL-DRV8301
Hi,
I am currently using a LaunchpadXL TMS320F 28069M with a BOOSTXL-DRV8301 REV B to drive the following motor: FAULHABER MINIMOTOR SA 2444 S 024 B.
I've attached the spec sheet for this 2Ohm, 170uH motor and will also attach my associated user motor settings.
My problem is that I am able to command the motor in speed control but I am unable to achieve anywhere close to the no-load speed on the spec sheet. It is rated for 22,000RPM, but I am not able to achieve over 7,500RPM and would be nervous going higher because the system wants to draw more than it's continuous rated thermal current limit of 1.58A so I am currently limiting the current on my power supply. I don't expect this motor to operate so hot while having no-load at RPMs higher than a few thousand (when amperage increases quickly as a function of speed).
I would ideally like to set very high PWM (100k+) but have tried various settings without avail and realize that the DRV8301 is not advertised as a high PWM motor.
Judging by my user parameters, to be posted, is there any aspect of the system that I still need to experimentally tune or something big that I am missing? As a note, I have tried various values for many of the user parameters. The manual identification of the motor for Rs, Ls, and Flux did not go well so I used the spec sheet and base guidelines for these.
