My canbus connection broke for the hundredth time and with no lead solder at the store thought J and B weld would be a good idea:weary:
It’s conductive. Don’t know what happened but it was fine till now
Have you tried running them individually? Can you also post pictures with the front and back of both vescs w/ the bulk caps?
I haven’t tried running them individually but they’re connected in parallel.
Thanks for your help! I’m hoping the lights would indicate something. The one lights up fine, i imagine it’s good, the other has that dim flickering red light which isn’t right. What can I do ?
You most likely shorted out your can bus, when that happens, U401 blows short, shorting out your 3.3v bus.
Ok. Is that somewhat easy to replace/fix? Dammmmmmn!!! No fuiuuujccckkkk!!!
Does it connect to the BLDC tool? If so, can you type in faults in the terminal to see what what pops up? [quote=“Blasto, post:4, topic:13781, full:true”] You most likely shorted out your can bus, when that happens, U401 blows short, shorting out your 3.3v bus. [/quote]
Also in this case, you might have also blown your STM or DRV
It’s always possible, but they’re most likely ok. The drv’s buck converter will be in ocp, the mcu shoud be fine.
Ok thanks I’ll try the bldc tool when I get back home in 3-4 days. I wasn’t sure if it was ok to even have it plugged in but I guess what’s done is done. I’ll tell you what it says then. It flickers and doesn’t look good
It’s great having you guys around. Wish there was a guide to how the vesc works and can be repaired for idiots.
Replace U401, don’t burn shit around u401.
Use a proper CAN bus cable next time, jst ph 4pin
The proper cable always ends up breaking on me and even soldering does too eventually. I’ve been talking about potting them for years and should’ve long ago…likely would’ve saved me huge downtime
This
http://www.digikey.com/product-detail/en/jst-sales-america-inc/PHR-4/455-1164-ND/608606
http://www.digikey.com/product-detail/en/jst-sales-america-inc/ASPHSPH24K152/455-3082-ND/6009458
For a reliable connection, i ended up getting a whole bunch of these cables, very handy