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When the motor profiler is used - 1: do the L and R values apply to a single phase coil, or are they values measured across two driver outputs, i.e. two phase coils in series? 2: Are they DC measurements or measured at the PWM frequency?

jartim
Associate III
 
1 REPLY 1
Gael A
ST Employee

Hello @jartim​,

Concerning your first question, R value is measured across two driver outputs, and then is divided by 2 before getting returned to Motor Profiler. L value is calculated using R value previously determined and measured Rise Time. Both values are averaged from a sum incremented at each PWM frequency loop for a definite number of times.

I hope this answers your question well.

Best Regards,

Gaël A.

If you agree with my answer, please consider accepting it by clicking on 'Accept as solution'.

Hope this will help,
Gaël A.