TMS320F28P650DK: The reason why motor parameter measurement and extraction values cause an error

?? ?

Tool/software:

Hello.
I'm writing because I have a question.
The TI resistance parameter extraction causes an error with the motor meter when extracting the resistance value.
The motor resistance meter measures 71mHm, but when measured with the TI motor parameter meter
44 mHm is measured, the error rate of the motor resistance meter is shown to be 0.02%.

1. The reason for the error.
2. Error tolerance
3. a way to reduce the error rate

Please reply.

over 1 year ago

0 Luke Jones over 1 year ago

TI__Mastermind 28580 points

Can you provide more details on how the F28P65 part is not behaving as expected?

0 ?? ? over 1 year ago in reply to Luke Jones

Prodigy 40 points

The motor parameter extraction logic seems to be operating normally, but I wonder why there is an error with the actual resistance measurement.

0 Luke Jones over 1 year ago in reply to ?? ?

TI__Mastermind 28580 points

Hello,

I need more details to assign this thread to the correct expert. Are you using a TI software example? Are you using a particular peripheral of the F28P65x that is not behaving as expected? Please share code snippets as well to demonstrate the problem.

Thank you,

Luke

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TMS320F28P650DK: The reason why motor parameter measurement and extraction values cause an error