Ultra starts out notchy! Settings?

pstephend

10 µW
Joined
May 5, 2017
Messages
5
HI, Installed a new Ultra motor and updated the software to what I have been using for years. But this one is notchy off the line. It feels like a stepper motor for a few seconds then smooths out. Does anyone have experience with what settings to take the notchy out and be as smooth as I'm used to? Attached are my settings and this is a hand mtn bike. thx
 

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  • Ultra Mod 1 settings (1).pdf
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There are several "Ultra" motors out there, I'm assuming Bafang?

(I don't download anything unless I know what it is. Just paste it up here.)
 
Yes, Bafang g.510 (M620) UART

I'll try start current and the slow start mode. I know it can be smooth! thx
 
I'll try start current and the slow start mode. I know it can be smooth!

Was going to suggest but you got there first. I didn't know if the Ultra has the same settings as the BBSHD (and 02). In turn, if the settings are in an .el files like the BBHSD, it can be opened, edited (or copied and pasted) with Notepad.
 
Made headway tonight by turning up the slow start mode number and turning the start degree down. I'm 97% there.
 
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