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Martin1
Associate II
September 18, 2018
Question

How to tune Start-up Parameters, On-the-fly, rev-up, ...

  • September 18, 2018
  • 1 reply
  • 2756 views

Hello :)

I am using ST MCSDK 5.2 for a bicycle hub motor (with freewheeling) and try to tune the startup parameters.

I get decent startup by activating "rev-up to FOC switch-over"

The downside: If the motor is still moving from the last run and I try to start the motor again, I get an over current fault. Seems like rev-up and an already turning motor are not compatible?

I feel like this is where on-the -fly startup would come in handy, but when I activate it, rev-up is no longer even available. (Ideally the software would use rev-up for a stopped and on the fly for a moving motor in my opinion)

Also I am not sure if understand the whole startup procedure with the 5 possible steps correctly.

Seems like nr1 is an alignment step to get the motor to a defined position and 2 starts the movement.

How comes that this is compatible with the rev-up option? Seems like two different ways to start the motor to me.

Maybe someone has info material or his own ideas on how to tune these parameters?

Many thanks!

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This topic has been closed for replies.

1 reply

Laurent Ca...
Senior III
June 28, 2021

The question has been moved from the "Motor Control Hardware" section to the "STM32 Motor Control" section (the question is about the STM32 MC SDK). 

Best regards

MMcMa.1
Associate
October 16, 2023

I find it frustrating that ST staff "move" questions when they don't fit a category.  I did a google search which lead me to this forum topic... but now I have to struggle to find where you put it (your community forum is not easy to use).  Can you at least provide a link to where this question was moved too?