Comments on: IONI now measures motor resistance and inductance

By: Tero

Tero — Thu, 23 Apr 2015 17:34:26 +0000

Good to hear your feedback :)

We start syncing IONI features to Argon FW starting from the next release, but no dates yet when everything is done. BTW, today we started implementing the Sin/Cos encoder support which will come to both drives pretty soon when it’s ready.

How much the value inductance changes depending on angle? If its ~10% or less, then it’s close enough anyways. No need to be more accurate.

By: Weerasak

Weerasak — Fri, 17 Apr 2015 13:24:56 +0000

Wow, I need to throw my RLC meter away.

Can you transfer this feature to Argon?

BTW, I noticed that during measurement of inductance with L meter, if I turn motor’s shaft in different angle and measure, it will give you different value also.

The question is which value is correct for ML parameter, among highest, lowest or average value.

Weerasak
http://www.CNCRoom.com/forum

By: Tero

Tero — Fri, 17 Apr 2015 12:34:43 +0000

Cables affect to the result and it should because drive sees them together anyways. So including them in the values gives better torque tuning.

By: Michael

Michael — Thu, 16 Apr 2015 20:39:51 +0000

So it does measure the resistance and inductance of the cables as well? However measured values are pretty close to data sheet values for my motor. Think that is good :)

By: jan

jan — Wed, 15 Apr 2015 23:27:48 +0000

This is very cool!!

Thanks!