VESCs Randomly died while setting up the CAN bus addresses

ESK8 Electronics
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I had a look and it and its all good, it did work briefly before it all died

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I’ve had 2 sets of enertion vescs fail with canbus. I attributed mine to bad solder connections on a r spec motor. Were you doing motor detection at the time?

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interesting thanks ill have a look through that thread. I had already done the motor detection on both vescs.I was just setting up the addresses when things went a bit nuts. its a tad frustrating lol

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Where is you CAN bus wire? How does it look like?

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Do the vesc still light up when you open them, if not can you check if the can tranceiver is broken. This kind of damage occur when you short the can connection.

C25 on vesc-X is this one:

2017-03-29 08.47.44.jpg3024×4032 2.45 MB

Also, make sure you don’t damage the dissipative tape on the mosfet.

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Sorry @Jebe I’ve read your thread and the damage seem more to be the motor, not the can connection.

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I’ve bought 2 new motors, my concern was that the slave motor was taken out as well. I will be going with a Y connector splitting the ppm signal next, just waiting for my vesc 6’s. Appreciate your advice bud, thanks for replying.

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Thanks for the reply. No lights but my receiver still has power, I also have dead short across the c25 cap.

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I’m not at home atm but it was just standard 2 wire canbus connection

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so you to change U401 witch the can tranceiver chip.

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So just to confirm I’m testing from the c25 cap to the 5v and I should get open circuit?

Between C25 and 5v - open circuit Between C25 and can H - short circuit Between C25 and can L - short circuit Between C25 and gnd - short circuit Between 5v and gnd, canH, canL, gnd - open circuit

Thanks for your input it’s much appreciated!

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Just to close the thread if anyone reads this it was the transceiver chip in the end

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when you removed it could you connect with the bldc tool and run as a single?

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Yep you can connect to it after the chip is removed

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might be kind of late in the game to even mention this but skip the CAN altogether.

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Yep I’m just running it with a y splitter and no canbus atm

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I wish I had have…was waiting for a response from enertion which never came and blew two more vescs :frowning:

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I know this is an old thread but are there any tips to not kill these, i got 2 brand new form diyelectricskateboards, and followed all their instruction and they died completely. They are being resent but i am afraid to configure them and kill them again. I suspect they may not have tested them completely as they claim to do because i used all 100% their stuff, 36v li ion battery, and have a lot of experience with this stuff, didn’t reverse any polarity at all and just totally frustrated. Any tips on this, i see some talking about the Y adapter, but have read that the voltage differences under load can cause ground loop issues and kill the VESCs.

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Don’t switch on or off only one esc while CAN Bus connected. Don’t disconnect the can bus while your esc are on. If you use y-split for your ppm instead of can thsn cut the middle wire on one of the ends. I think that’s pretty much all.