Part Number: BOOSTXL-DRV8301
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.
What Voltage rail are you running the DRV8301 EVM at?
Are you using our InstaSPIN libraries? If so, which lab are you using?
Phil BeardMotor Applications Team
In reply to Phil Beard:
In reply to msem:
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