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Motor Control ICs Forum Discussions

aneedles
Level 3
First like given First like received 10 replies posted
Level 3

As you can see from the attached files, we setup the Motor Max RPM and run the motor in VSP mode using the analog input. Why is the motor allowed to be commanded more than the limit?

MaxSpeedIssue_1.jpg

 

MaxSpeedIssue_2.jpg

 

MaxSpeedIssue_3.jpg

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1 Solution
Krupashankar
Moderator
Moderator 250 replies posted 100 solutions authored 5 likes given
Moderator

Hi @aneedles,

The maximum Analog voltage input will be scaled to the maximum set RPM in MCE Wizard.

 Why is the motor allowed to be commanded more than the limit?

This can be due to the improper tuning of the PI controller. You can try adjusting the Kp and Ki constants and determine the response of the system. 

 

Thanks,

Krupashankar

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1 Reply
Krupashankar
Moderator
Moderator 250 replies posted 100 solutions authored 5 likes given
Moderator

Hi @aneedles,

The maximum Analog voltage input will be scaled to the maximum set RPM in MCE Wizard.

 Why is the motor allowed to be commanded more than the limit?

This can be due to the improper tuning of the PI controller. You can try adjusting the Kp and Ki constants and determine the response of the system. 

 

Thanks,

Krupashankar

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