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DYS BL30a
#1
Hi guys.

Bit of a strange one today. I was using my afro usb programmer to connect these dys bl30 esc's to blheli suite. 3 of the esc's connected and read the settings no problem... the last one though... no matter what I tried was giving the same failed to connect error.

The esc in question works fine in other respects as far as I can tell. Motor tab in cleanflight has the all running at the same speed on the sliders. And brief run up tests seem ok (weather means I can't get out to test properly)

Someone suggested it may be the bootloader was different to the others so I tried connecting through the flight controller, tried both spf3 and naze32 rev 5 and those didn't work either.

Unfortunately I have no other method of connecting an esc to a computer so I am not sure what to do next.

I am assuming there is a bootloader issue with this esc which will require flashed?

I have defaulted all the settings again so I can use then in the meantime.

Any suggestions at all will be greatly appreciated!

Cheers!!
76 Broken props
45 Used cable ties
1 Fried ESC
1 very unsympathetic girlfriend
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#2
My suggestion would be getting an Arduino UNO, and try both SimonK bootloader and BLHeli bootloader, it could be that they are on different bootloaders... Afro USB programmer can only do one i believe?
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
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#3
Hi Oscar, thanks for the reply!

As far as I know the Afro programmer only works with Simonk bootloader.

I have an Uno on the way now. Will see how I get on with it! I will probably put them all on blheli.

I may be back for help with the Uno!! ?

Thanks again!
76 Broken props
45 Used cable ties
1 Fried ESC
1 very unsympathetic girlfriend
Reply
#4
So, after putting all the settings back to default and bench running through cleanflight. I managed a test hover with it yesterday. All seemed fine!

However, went to fly it at the field today. Plugged in... stepped back... armed it... applied throttle and it pirroetted around one arm.

I throttled down and went to pick it up when it smoked out and had a nice flame going!!

It was the same esc I was having trouble with so I'm not sure if it is a related issue or not.

In a related issue... the emax RS2205 2300 that was connected to this esc now spins a lot more freely than the other 3.

The other motors barely spin at all when you flick them but this one now spins quite easily... I hope that isn't a bad sign!!
76 Broken props
45 Used cable ties
1 Fried ESC
1 very unsympathetic girlfriend
Reply
#5
the most common issue with RS2205 is the long motor screws!!
Check they are not touching your motor windings...
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
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#6
Hi Oscar, I had already checked this. The screws were close but not touching so I switched the out for shorter screws and thread locked them in. So I can absolutely say it was not the screws!
76 Broken props
45 Used cable ties
1 Fried ESC
1 very unsympathetic girlfriend
Reply
#7
So have you tried switching the problematic motor with a good one on the same quad... To rule out whether it's the ESC or motor..
Also check your soldering too
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
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#8
Got this all stripped down tonight then tested and metered everything.

The motor which was connected to the fried esc tested fine. The other 3 motors and esc's also ran perfectly. I tested all the voltages coming from the pdb and everything there was fine as well.

So it would appear that the only damage was from this one burned up esc.

Any idea what may cause this one motor to now spin a lot more freely than before? My first thought was that the magnets had somehow been damaged by the heat. I read that heat was an issue with these n52 magnets? Could also be bearings? No other symptoms of bearing problems though.
76 Broken props
45 Used cable ties
1 Fried ESC
1 very unsympathetic girlfriend
Reply
#9
(11-Apr-2016, 12:54 AM)DaJudge Wrote: Got this all stripped down tonight then tested and metered everything.

The motor which was connected to the fried esc tested fine. The other 3 motors and esc's also ran perfectly. I tested all the voltages coming from the pdb and everything there was fine as well.

So it would appear that the only damage was from this one burned up esc.

Any idea what may cause this one motor to now spin a lot more freely than before? My first thought was that the magnets had somehow been damaged by the heat. I read that heat was an issue with these n52 magnets? Could also be bearings? No other symptoms of bearing problems though.

it's possible a faulty ESC takes down a motor with it. 

what do you mean by spinning more freely? it sound more positive than negative Smile
as long as it's flying, and isn't noticeably hotter than other motors after a session, it should be okay? unless it's affecting flight characteristics
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
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#10
The other three motors, this one too before the fireworks, feel tighter, much more resistance to free spinning than other brushless motors. When you give them a spin by hand they stop pretty much as soon as you take your fingers off them. This other one now spins for several revolutions quite freely before coming to a stop, more like any other brushless motor.

I haven't used these motors before so assumed this resistance to free spinning was normal and caused by the magnets.

I will see how it goes with the new esc when it arrives, as you say, as long as it flies properly and is getting the correct range of rpm to match the others than there shouldn't be an issue.
76 Broken props
45 Used cable ties
1 Fried ESC
1 very unsympathetic girlfriend
Reply


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