General discussion

   i have two VESC 6.4,when im trying position control，i used both ABI encoder and AS5047 encoder, ABI encoder is easy to connected by the manual,

and it works fine,but when i connect VESC to AS5047,the chip burned,so i think if there is gndloop.

   so im wondering should we do not connect gnd?   

   what's the connecting difference between 3.3V opration and 5V opration?

   How we deal with the resistant R1 and R2？in my AS5047 PCB broad there is only C1 and C2.

Hello,

Has anybody experienced going through the "Setup Input" and there not being an option for setting up for a master or slave like most tutorials show? When I go through set up, it always proceeds the next step and never populates the option to choose a Master VESC or Slave VESC to configure.

Any assistance? 

Take care,

Hi All,

Im currently in the process of trying to run a brushless compressor to chill water. We replaced the original ESC that was supplied, as it was a locked down oem unit, that wasnt suitable for various reasons. After doing so, we seemed to have picked up an issue.

Mostly at low duty cycles (25-30%) the motor seems very unstable, and on occasion will try and draw up to the limits set in the software. Around this range, it will also intermittently seem to stop and start making a high pitched squeal.

Hi,

I have a VESC 6 on my E-Bike, everything works great with a normal thumb throttle and FOC, now i connected the 5V TMM (torque measurement unit) Sensor, the Signal is between 1.6V to 4.9V, i used a Voltage divider​ to drop the vmax to 3.3V with 10kOhm and 20kOhm. (Because ST32 is not 5V tolerant)

The Problem is that the Signal will depend on my strength on the pedals and the Signal have a lot of fluctuation, the motor turns on / off / on / off the whole time i spinning the crank of the bike.

Hello everyone.  I upgraded my razor pocket bike to brushless using the vesc speed control and this motor: https://www.amazon.com/gp/product/B07FSVKYQB/ref=ppx_yo_dt_b_asin_title_...

the problem is that the power output isn't any better than the stock 350w brushed motor.  I'm not sure if I'm missing a setting, but that doesn't seem right.  the motor is rated at 80A with 120A peak.  I'm running a 24v battery.  any ideas?

hi 

i have problem with my order 

I paid for the order 5/27/2019 WWW.TRAMPABOARDS.COM WWW -$49.22  my order #15851

I understand that the order goes to USA  and it takes 1-2 weeks 

I wrote (Contact Trampa Boards ) twice but never received an answer 

someone had this situation ??? What should I do ??? I do not want to contact my bank !!!

If I post it in the wrong topic, transfer it to the right one, please 

thanks 

I'm using a 4.12 VESC in FOC mode to run a 16" hub motor. This works without any problems, but I wanted to display some data on a screen.
For this, I am using a cheap Arduino clone, which is connected to the VESC 5V output and serial. (library in use: https://github.com/SolidGeek/VescUart​)
In BLDC mode, everything works the way it should, but when running FOC, the Arduino "freezes" at random times. It only starts updating the screen again upon restarting it.

Hi, 

1. I have set my vesc regenerative brake current max to -5A, as i have a 5Ah battery (LiPo) and i know that charging a battery at more than 1c is not recommended 

for its life span. My problem is that now my brake is just not working after 1 or two seconds of trying to brake (I figured it's because it passes the max current),

is my problem that the battery is too small, or am i missing something?

2. Im planning to switch to li ion, i would be glad to know if the answer to question 1 is same for lipo and li ion.

Hii, I have a question about the two different maximum currents to configure in the VESC-Tool: Motor_Current_Max and Absolute_Maximum_Current.
What event could cause the current to exceed the Motor_Current_Max?
I tried to block the Motor and measured the current with a current probe on my oscilloscope but it would not exceed the Motor_Current_Max of 40A in my case. (VESC4, BLDC Mode with hall sensors)
Does the VESC use this additional current range to provide more power for uphill, start etc. or does this just happen by accident?

Thanks

Hi,

I started the VESC tool and its Wizard function. I gave all requested parameters and let the ESC make its measurements, motor spun and burred and did all I expect it should and finally got the results of Ohms, inductance and flux etc. Stored them to a ESC memory. Next I configured the input, PPM which I took from a RC receiver. I manage to map the range so everything looks fine. 

Next I try to spin the motor with my throttle, motor gave slight burring sound but did not spin at all !?!?