MCT8316A: Let me know about deceleration control at speed loop control

Kenji

Part Number: MCT8316A

Hi Team

I want to know about deceleration control at speed loop control.

The figure below shows the waveform of speed change.
Brown is the speed waveform and red is the speed command waveform.

Deceleration control, seems speed down in two step. This not change in any combination of Kp and Ki.

Is there a way to get rid of this, changing the parameter?

over 2 years ago

0 Andrew Liu over 2 years ago

TI__Mastermind 18981 points

Hi Kenji,

Our team will review your question and follow up shortly on next steps

Best Regards,
Andrew

0 Vishnu Balaraj over 2 years ago

TI__Mastermind 24415 points

Kenji,

Deceleration in speed loop can be controlled only by tuning the Kp and Ki parameters in MCT8316A.

Regards,

Vishnu

+1 Kenji over 2 years ago in reply to Vishnu Balaraj

Intellectual 530 points

Hi Vishnu Balaraj

Even if tunning the Kp and Ki parameter, the step will not disappear.

I think it has something to do with the control sequence.
It seems to doing something by switching between open loop and closed loop.

It's a very good device, but I can't use it unless the application I want to use improves the response of deceleration.

Thank you.

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MCT8316A: Let me know about deceleration control at speed loop control