Marathon Falcon | Landyachtz Evo 40 | 12s5p 21700 | Esk8Supply Direct Drive | MakerX dual | cloud wheels

[murdomeek]

Finally had time to work on it more after the holidays, relatives coming over, vacation, etc are over.

Started programming the VESC yesterday and I have a few questions. @mishrasubhransu @BillGordon If you guys can help that’d be much appreciated!
(Screenshots of my settings are below)

My current setup:
elofty 58kv direct drives
120mm cloud wheels
makerx dual esc
I want to run it in BLDC mode
They are connected via internal canbus (I think?). It is NOT split ppm

@river

Also, thanks to @mishrasubhransu’s for the advice of using “Current” / “Forward/Reverse” PPM control and limited the reverse ERPM. Limiting ERPM it to 5mph reverse and keeping -60a works well.

1. Is “current Hyst reverse with brake” correct? [Screenshot 1]
2. Where do I limit the reverse erpm? Right now my “reverse” mode is still at full speed. I tried changing “max erpm for direction switch” [screenshot 1] but it is still reversing in full speed.
3. What should my erpm be if I wanted max ~5km/h? [screenshot 7]

@mishrasubhransu

Torque is awesome. There is no hill I can’t climb. Make sure to change the sensorless erpm, under settings->foc-> hall sensors, to 4000 min for good torque. Because when it’s set to a low numbers say 1000 then it uses sensorless mode just after starting which doesn’t know the magnet position accurately and hence is inefficient i.e. can’t produce enough torque and motor heats up more than it should.

4. Does this apply in BLDC mode as well? I tried to change the “minimum erpm” from 150 to 4,000 and 10,000 but the motors made screetching sounds and didn’t work. [screenshot 5]. Am I changing the wrong thing?

5. Does this VESC act like it’s programming two esc’s over canbus? (It seems so from the above tests and it says its over canbus) Do I put 60a or 120a for motor max? [screenshot 3]. I want 60a/-60a max per motor.

6. right now I am using a temporary RC car remote until I have my VX1 setup later. When I turn the remote off, the motor goes full speed! :o Is there a way to make it “disconnect” at 0% throttle? Or is it a remote/receiver issue and it’ll be fixed when I install the VX1 remote?

Thank you so much for your help. This is alot more technical than programming a single belt 4.12 I did a while ago, and its all getting a bit over my head.

Thanks!

Screenshots: