SpaceCell or VESC problem? No connection, blue light on L3-100%

Someone else can chime in here. I know someone knows the way. Try holding down the button and then pressing it to cycle through.

I measured the value for the + and - of the controller pins and got 5V and the - and Signal pins and got 3V

Allright. So the only problem you have is the display being in wrong settings? Does the motor still work when you accellerate?

no because once I plug my receiver in the VESC blue light turns off and I can’t get it to connect via BLDC to do a motor test there, the VESC gets very warm if I leave it turned on…

If you leave the receiver disconnected. Power on your spacecell. are you able to connect it with USB ? Edit: nvm, I’ve read your initial post over and over again.

Do you see any possible traces of burn on your VESC ?

Do you measure your 42V also on the lead endpoints soldered on the VESC?

Maybe the VESC throw some faults? You can check it when you go to the terminal in BLDC-Tool and type in ‘faults’.

I get the same from directly on the solder points of the VESC, is there any way to test the Caps? I can’t see any burn marks at all (checked earlier as I saw that was a common symptom of this issue)

I can’t connect to the BLDC

I figured it out. Hold it down when turning the battery on on and then you can cycle through L3 -> L12 and then some voltage settings, find the one you want and turn it off and back on again

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You need L-10, fyi. Your other problem is definately in your VESC.

Edit: with normal power, your blue (5v) and green (no idea what) led should come on. I’m guessing you’re going to need to check your regulators.

Maybe Expert @chaka can shed some light on this problem. I like to learn as much as I can about the VESC.

Would there be a circuit diagram I can look at so I can do some general tests? keen to find out if I need a new one or how to fix it, waited months to get all this for it to fail :frowning:

Schematics are available from Vedders Site: http://vedder.se/2015/01/vesc-open-source-esc/

Maybe this post on his forum can also be helpful for measuring points: http://vedder.se/forums/viewtopic.php?t=195

Someone with a similar problem on the forum: http://vedder.se/forums/viewtopic.php?f=7&t=245

Thanks a lot for all this help guys. Especially Skitzor :slight_smile: I managed to get the VESC connected to BLDC I think I found the issue, not sure though. It looks like the main positive wire is being pierced by a pin on the back of a connector as the shrink tube has been done very tight. I might cut it off tonight and see what I can do with placing it all a little better I’ve attached some images of bldc tool readouts incase anything is out of the ordinary. I also get a failed to detect message when I try to detect the motor…

Oh, you mean the bottom of the Hall sensor connector pierced your mains red cable? You should cut them as close to the pcb board to prevent this. I too was made aware of it by @chaka. On a sidenote, you’re lucky your vesc wasn’t totalled ! And glad to help you out, or at least made you think in the right direction !

So I still think the VESC is fried as it wouldn’t connect to the PC again after this and it kept failing to detect the motor. I do however have it in the state that the blue light is on and red is flashing (constantly) which is more than what I had yesterday. I may just order another one from Enertion for now (hope that they caught up on orders) and work out getting it fixed/replaced with them in the meantime. I plan on making another board down the track so extra VESCs won’t be a problem.

I was wondering if someone could confirm a suspicion for me. I think the powerdelivery is screwed in the VESC due to that pierced cable. When powered on does the VESC blue light EVER flash? or does it just stay light at all times? I also tried removing the shrink wrap around the cables and pcb that caused it to be pushed into the pin and found that it had 2 pins actually piercing and both pierced enough to get a connection, which is odd as it doesn’t even have to pierce far considering there’s no protection there… I would suggest some hot glue over these pins for anyone else.

Constant red flashing is a drv fault and it needs to be replaced. This was most likely cuased by the pins being shorted by the battery cable. The pins piercing the positive power cable is a known issue and they should have been cut flush.

Thanks for the confirmation mate. I guess I just have to wait for a email back from EnertionSupport and until the next batch of VESCs come around. In the mean time is there any ESCs you can suggest that would work well (plug ‘n’ play) with this setup?

Parts list: Enertion single motor drive system FS GT2B with receiver SpaceCell Pro 3 (10s)

Not really. You need to be able to limit you motor amps with a pack that small since that motor will pull more amps than that bms can handle. The vesc is the only esc that is capable of doing this.

I have a big problem with my vesv too when i power my vesc and plug it into the pc the vesc lights up blue than blinks 3times red when i than press connect on the bldc tool it says no firmware read response i have the vesc v4,12 with firmware 2,18 i cant get it to connect my battery is a 6s5p 18650 without a bms only a ballance cable i am using win7 and when i go to device manager i can see the vesc i cant update the firmware becouse i cant connect what should i do pls help