Need reliable VESC - MakerX M100 failed/fried during motor detection

Esk8 Electronics
1

Hey everyone, I haven’t been on the forum in awhile but wanted to make a post to see everyone thoughts. I am troubleshooting an issue with my board frying a VESC and also in search of a suitable replacement hopefully within ~2 weeks.

My current setup:

  • TorqueBoard 6380 (single drive)
  • 12s battery
  • Old VESC: MakerX Mini FOC Plus (had for 2.5 years and 1000+ miles and recently stopped working)
  • Settings: 30A battery max / 50A motor max

Recently I ordered a new MakerX Go-FOC M100, on the 1st motor detection VESC tool gave “'Flux linkage detection failed”. On the 2nd attempt I got “Detection failed - VESC disconnected during detection”. After that my BMS short protection would trip when attempting to power on. And tested multimeter I had a short between + and - battery leads.

So now i’m stuck, I haven’t contacted MakerX support yet but will. I ordered it 5 months ago and didn’t get around to testing till last week so hopefully it isn’t too late.

What I need help with:

  1. What might have caused the M100 to be fried? Is my motor the problem, or something else on my board? I just want to make sure I do not fry another VESC.

  2. Where can I buy a VESC with 1-2 week shipping that is reliable?

  • I saw amazon only has flipsky options (would the 75100 and 75200 be good for my use case)
    -Would it be better to buy from someone on the forum or elsewhere online and just wait. If so, what VESC would everyone here recomend for my setup. I do not need more power than I had before, I am mainly focused on reliability. (Also open to offers for VESCs that people are selling)

Thank you for reading. Hopefully you guys can help me out!!

1 Like
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Are your motors ok?

Any way to double check that

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How can you check if the motor is good? During the 1st motor detection it did spin up. I have it for ~2 years and it’s got a tiny bit of surface rust.

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@b264 help…

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Would highly suggest checking the motor. This sounds like the motor died and has now taken both escs.

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I did the hand test, and the motor did great. No play or grinding. Any 2 phase wire shorted was “some” braking. And all 3 was much stronger and smooth braking. I will do the other test with drill & multimeter later today.

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I cannot speak highly enough of my SKP ESC’s - they’ve been plug and play for the past two years, zero issues running massive bioboard motors on an 18s7p setup. @Skyart Not sure about current stock or delivery times but checkout https://skyartpower.com/products/skp-solo-esc or try messaging the man himself - @Skyart

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I preformed the motor test with drill. I got very consistent AC voltage between all 3 phase wires.

I also just got my motor to spin up using a 2nd VESC, so motor is not bad.

Any ideas on why my MakerX board would be fried and have a + and - short.

I also have another question I posted in the beginner questions thread

https://forum.esk8.news/t/beginner-question-thread-2023-edition/66072/7486?u=connue990

1 Like