Dis functioning vesc red led keeps blinking after power on.

General topics and discussions about the VESC and its development.
MikeLemon
Posts: 7
Joined: 29 Apr 2017, 22:58
Location: none

Dis functioning vesc red led keeps blinking after power on.

Postby MikeLemon » 16 Jul 2017, 11:05

Hello there,

I keep having issues with my vesc and that's an endless fight but one by one.
after powering up(Suddenly started to happen after a quick test ride with same setting to the second vesc) the blue led turns on and the red led just blinks along with a slight glow from the nearby green led I have to mention that this happened after a quick successful test ride after replacing the burned DVR chip and of course the other vesc running with it is just fine.

rew
Posts: 943
Joined: 25 Mar 2016, 12:29
Location: Delft, Netherlands.

Re: Dis functioning vesc red led keeps blinking after power on.

Postby rew » 16 Jul 2017, 16:00

The red led flashing means it is seeing an error condition. When it does that you can go to the PC, hook it up and type "faults" in the terminal. It should then report what it thinks is wrong.

MikeLemon
Posts: 7
Joined: 29 Apr 2017, 22:58
Location: none

Re: Dis functioning vesc red led keeps blinking after power on.

Postby MikeLemon » 16 Jul 2017, 16:16

When I try to connect it to the computer it finds the com port but when trying to connect to it with the BLDC it says unknown error.
and it's not the cable or the computer for sure because it works with the other vesc.

rew
Posts: 943
Joined: 25 Mar 2016, 12:29
Location: Delft, Netherlands.

Re: Dis functioning vesc red led keeps blinking after power on.

Postby rew » 16 Jul 2017, 17:39

The red light flashing means the CPU is running correctly (but it's finding an error in its surroundings)...
Not being able to connect to BLDC_TOOL means there is a problem with the CPU (or the cable or computer, but you ruled that out)....

Difficult situation....

MikeLemon
Posts: 7
Joined: 29 Apr 2017, 22:58
Location: none

Re: Dis functioning vesc red led keeps blinking after power on.

Postby MikeLemon » 16 Jul 2017, 19:33

What do you suggest I do?

linsus
Posts: 35
Joined: 24 Apr 2016, 10:20

Re: Dis functioning vesc red led keeps blinking after power on.

Postby linsus » 04 Aug 2017, 06:52

Is the MCU or any other Component hot? (use your finger, carefully).
If it finds the comport the traces should be fine.

If you have a spare MCU, try replace it and put in bootloader etc and see what happens or if you have another working VESC, swap the MCU over.

Generally when replacing DRV, its more then easy to have some not visable shorts between the pads/legs.


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