Wiring Confusion for Sensored Operation on VESC 4.12 + 6355 Motor

ESK8 Electronics
1

Hi everyone,

I have a TorqueBoards VESC 4.12 and TorqueBoards 6355 motor (https://diyelectricskateboard.com/products/electric-skateboard-motor-6355-190kv). I am trying to set up sensored operation. However I am unsure of the wiring between the VESC and motor and have heard of others frying their VESC if the phases are incorrectly connected in sensored operation (Fried 6355 motor? Fried 6S ESC? Help me diagnose please!).

The Torque Boards 6355 motor product page states that the motor wires are:

  • Blue = A
  • Black = B
  • Yellow = C

TorqueBoards6355Motor

However the VESC does not appear to have any markings as to which wires belong to which phases. There are pad P6, P7 and P9 on the VESC intended to be connected to the motor.

VESC412_WireLabels
VESC412_WireLabels1389×752 177 KB

The original VESC schematic (see Power MOSFET’s in image: http://vedder.se/wp-content/uploads/2015/01/Schematic-1.png) states

  • P6 = Phase 3
  • P7 = Phase 2
  • P9 = Phase 1

PhaseLabels
PhaseLabels1152×648 64 KB

But this is a bit confusing to me because a later component level diagram (see http://vedder.se/wp-content/uploads/2015/01/F_Modules-11.png) lists:

  • P6 = Motor 1
  • P7 = Motor 2
  • P9 = Motor 3 (reverse of the phases in the previous schematic)

VESCComponentDiagram
VESCComponentDiagram1390×838 151 KB

Does anyone have a similar hardware configuration (VESC 4.12, Torque Boards 6355 motor) running in sensored operation that can shared their wiring (I.E. blue, black, and yellow wires from motor are connected to which wires on 4.12 VESC)?

Thank you!

1 Like
2

Hello welcome to the forum, where color truly does not matter, usually. Your going to run motor detection on the vesc tool app, I prefer using a desktop rather than phone or whatever. So hooking up the phase leads doesn’t matter. It will work out.

2 Likes
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Hey, thanks for your reply.

It’s my understanding that for sensorless operation, the order that the wires / phases are attached does not matter but it does matter for sensored operation when you attach the header carrying hall sensor information from the motor to the VESC (atleast according to the TorqueBoard’s response in Fried 6355 motor? Fried 6S ESC? Help me diagnose please!).

Is the VESC tool (https://vesc-project.com/vesc_tool) able to detect mismatched phase connections? Could I use that to debug my problem?

4

No need to worry about the phases, you really can’t make a mistake there. Detection will actually detect where the sensors are at and will turn your motor in a certain direction. If that motor direction is not right, all you have to do is swap 2 (really any 2) of the phases and it will go the other direction.

1 Like
5

What do I know, I’m only a doctor? :rofl::joy::rofl:

6

Thanks for your replies, I’ll try it out.

7

You are using vesc tool to set up your configuration correct? Don’t expect to plug everything in and be ready to go.

1 Like
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Hi, yes, I’ll be using https://vesc-project.com/vesc_tool. I’ll probably follow the instructions in https://www.youtube.com/watch?v=lDuV8cnPRmI.

9

Ok just making sure :metal: