MCT8329EVM: MCT8329EVM PI Tuning

Adam

Expert 1195 points

Part Number: MCT8329EVM

Tool/software:

Hello,

I would like to enable Speed Loop and do the PI Tuning using MCT8329EVM and dedicated GUI.

There is such note in GUI:

How to find this and do the Tuning?

Also this is not working for me (I chosen speed command, speed status to log, click PLAY, motor spins, and nothing is plotting):

Can somebody help on that topic?

Thank you,

Adam

over 1 year ago

+1 Joshua Horlander Cruz over 1 year ago

TI__Mastermind 23840 points

Hi Adam,

This Real Time Variable tracking is referring to the variables that can be output by DACOUT, see Section 4.1.1 of the MCT8316A Tuning Guide for an example. To set the DACOUT/SOx/SPEED_ANA pin to output DACOUT first set DAC_SOX_ANA_CONFIG to 0b and then setting the desired variable to be output by DACOUT into DACOUT_VAR_ADDR. The variables that can be output by DACOUT are listed in section 7.8.5 of the datasheet.

Adam said:
How to find this and do the Tuning?

Tuning the speed Kp and Ki values will require adjusting a value and observing the speed response of the motor. If the response is not as desired, then re-adjustment of the gain values will be needed. I would recommend starting with speed Kp and Ki each set to 0x64 and adjusting from there.

Adam said:
Also this is not working for me

This feature appears to be non-functional. We are working to fix this feature as soon as possible.

Regards,

Joshua

0 Adam over 1 year ago in reply to Joshua Horlander Cruz

Expert 1195 points

Thanks

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MCT8329EVM: MCT8329EVM PI Tuning