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Help with noise in rpm and ppm

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martin2day
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Last seen: 3 months 6 days ago
Joined: 2020-07-08 08:28
Posts: 14
Help with noise in rpm and ppm

Hello,

 

i build myself an VESC. It run but i get some noise in the rpm and ppm signal from my RC Resiver.

I think i do some errors in my layout with GND Routing or Placemant of the Elemnts.

Please can someone have a look at my layout and say whats wrong in the routing and can cause my problems... :-)

 

Thank you very much

Regards Martin

VESC 12 TO-220 MCU.zip

VESC 12 TO-220 Power.zip

martin2day
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Last seen: 3 months 6 days ago
Joined: 2020-07-08 08:28
Posts: 14

Hello,

here you can see what happen when i switch full brake...

Bildschirmfoto 2021-02-24 um 19.19.29.png

The rpm goes up to 250 rpm...    can i chance this in the setup?

I need some help, please.

 

Martin

martin2day
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Last seen: 3 months 6 days ago
Joined: 2020-07-08 08:28
Posts: 14

Hello,

me again... i find a solution for me... don't know why.... :-)

I play with all the paramter i can change in the software.

If i lower the Dead Time Compensation (half the original) than i see only half the rpm at brake und 0% DC.

 

At the end i setup 0,000uS und now i have 0rpm at brake and at 0% dc... and the motor starts everytime fine.

 

Can someone explain this to me?

 

Martin