AnsweredAssumed Answered

"KMS" vs. "MCRSP_PMSM_V1.2.0"

Question asked by Walter Hochhuber on Aug 7, 2017
Latest reply on Aug 8, 2017 by Walter Hochhuber

Hello, we are new to nxp, KMS and KDS
We are interested to control 24V cooling fans for trucks and harvesting machines with the MKV31xxxx.



A) Status with KMS:

With "Kinetis Motor Suite Lab Guide" and KMS the motor is turning with the velocity plan.
The setup was very easy.

Now I have to add the temperature control with external analog sensor.


I was reading the API reference, but to you have code snippets how i can:

1) ...start/stop the motor
2) ...change the speed without velocity plan 
3) the fault status

4) ...brake

5) ... read speed, current etc..

i miss this examples in the API reference.



B) Status with "MCRSP_PMSM_V1.2.0"
with the same load the motor is not starting, i cannot find the correct parameters.
The same problem i have with "MCRSP_BLDC_V1.2.0"
With MCAT the tunning is for me not so easy.
But here i have the "DemoSpeedStimulator"



1) why you offer the second "MCRSP_PMSM_V1.2.0" solution. 
Both varians have the same FOC technology?

Whitch solution should i prefer?


2) windmill
After reading your AN, i thought KMS's FOC can start the motor if the fan is spinning.
But KMS only brake the motor before starting.
In the near future you will update to a really windmill funktion like by TI
This feature is for us very important.



thanks for help and best regards
Walter Hochhuber