General discussion

Hello All,

Hi there,

I have optimised HFI parameters for a 12 pole 14 magnet BLDC motor at a switching frequency of 25kHz, but when I increase the switching frequency to 30 kHz I can't seem to find any parameters that enable the HFI to run smoothly, is there another parameter I need to modify?

Thanks

Hi,

I would like to log some data to my phone while running, and saw this could be possible through the phone app but the VESC had to have NRF.

I have seen the NRF modules, but my problem is I'm already using the COMM port for the controller antenna, so I would like to solve it some other way if possible.

I have an older VESC that I'm not entirely sure of the exact specification. It says VESC SIX on and has a small v6.41 in the corner, but googling this I couldn't find much. I assume it does not have NRF built in?

Hi,

I'm quite new to this and I assume I'm just making some stupid miss, but really haven't been able to understand what it is.

I have a power supply that can give 30V/10A connected to the VESC and a motor controlled by it. I set the battery current limit to 10A, but it will not draw more than around 3A.

I set the battery current limit to 2A, then it stops at 2A.

I am using a flipsky dualfsesc 6.6, 12s 12c lipo (2 6s in series), on an electric mountainboard. I've been having a few symptoms that I believe may be due to an overcurrent fault, I'll start with the symptoms while riding, when motors are under load there seems to be a great deal less torque than there should be with 70 phase/motor amps per side, this issue is only while accelerating rather than braking, still recieving full brake torque.

Hi all, 

I'm wondering what is a normal amount for motor parameters (particularly coil resistance) to change on each detection. If I repeatedly click the detect parameter button on the FOC page, the coil resistance may change from 85 to 87 mOhms, which I'm guessing is normal, however occasionally it may jump up to say 95, or even as high as 120. I'm pretty sure it isn't a temperature thing, because it isn't like it happens right after I've been running the motor a lot. Might I have a hardware problem with my Vesc or motor, or is this just normal? 

Hello. 

Hello Guys,

Has anyone encountered FOC settings data/calibration not saving after power cycle or resetting power? what could be the cause of this? is there a way to fixed this?

TIA

Hey, I'm new to the forum. I'm looking to buy the Trampa VESC 100/250, and it says on the product page that the controller is rated for 100V max, and that "Voltage spikes may not exceed 100V!", but I'm really not sure what that means. I'm not sure how I would go about figuring out whether this controller is suitable for the motor I have. I have a VEVOR 72V 3kW BLDC motor that goes to 4900RPM... and its pretty big in size! What would be the best way of figuring out whether that will or will not induce big enough voltage spikes to fry the controller?

Strange behaviour on my Trampa VESC 6 MKV.

I'm using PPM input with Duty Cycle control and when I am going forwards and brake suddenly (release the stick), it goes into reverse for about half a second.

If you look the data, the duty cycle ramps up to about 55% (in the opposite direction for which you were going).

Only happens in one direction e.g. if it happens when you are going forward and brake, then it doesn't happen when going in reverse.

Running at 12S (approx 50V), motor is a 6880 (16 mOhms).