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-   -   150amps hobbywing esc in fire in my house!!! (https://www.rc-monster.com/forum/showthread.php?t=19835)

e-mike 03.31.2009 09:24 PM

150amps hobbywing esc in fire in my house!!!
 
o yes.....after 5 hours of flawless run my 150amps unit caught fire in my house...ive just putted a pair of fresh pack in my e-revo and power on the esc(the last time that ive do this in my house:mdr:)and after the couinting on cell(6) a big cloud of smoke come out of the unit and also great smell:whistle:so take a look.... i dont really know what happened the but half of the fet's are completely dead


http://i44.tinypic.com/iqjuk0.jpg


my set-up

mmmv3
castle neu(wow this motor rock!!)
6 cell flightmaxx 25c
18/68

Aceldama 03.31.2009 09:55 PM

Just from powering it on? Damn... I'm starting to rethink my proposed setup...

BL_RV0 03.31.2009 09:59 PM

That sucks. All controllers fail at one point or another though.

e-mike 03.31.2009 10:08 PM

Quote:

Originally Posted by Aceldama (Post 275058)
Just from powering it on? Damn... I'm starting to rethink my proposed setup...

yes!!!!!1 hour before this esc heat up my motor to 115f so ive decided to lowered the timing to 0deg(bad idea well i think:yes:) to see if my temp could it be better....i never be able to see if my set-up was ''OK'':lol:just power on and PUFFFFFFFFFFFFF:grrrrrr:

BL_RV0 03.31.2009 10:14 PM

What was the outside temp when your motor hit 115?

magman 03.31.2009 10:20 PM

That really sucks...sorry about your loss

E-Revonut 03.31.2009 10:29 PM

When posting pics please make them a little smaller so they show up without scrolling over. Cause that also means I have to scroll over to read all the longer posts!!!

E-Mike: seems like you need a new hobby! You have the worst luck between motors and escs

Aceldama 03.31.2009 10:52 PM

I wonder if lowering the timing to 0 has some sort of firmware bug...

lincpimp 04.01.2009 12:34 AM

SMOKE EM IF YA GOT EM!!!! ROOOAARRR!!!!

Dude, you have no luck, seems like you Canadians (David L too) just need to go back to nitro. Probably just seize the engines up though!!!

Best of luck to you E-Mike!!!

superek4 04.01.2009 12:50 AM

Bro, I posted my burnt hobbywing esc. I posted on hobbywing 150 amps review. I changed the timing to zero n it burnt. Wat I knw is the older batch of hw esc cannot hv punch zero. I hv sent mine for replacement.t

jsr 04.01.2009 01:17 AM

Seems like a bug with older batches. Sorry to hear that. Perhaps mike should put a sticky with this warning just to inform people. It may help disseminate the info.

BrianG 04.01.2009 02:21 AM

Hmm. I wonder if having 0 timing is possibly firing two phases at the same time for a very brief window, which effectively shorts out a bank of FETs.

superek4 04.01.2009 02:49 AM

I think it's the software. I burnt mine by changing punch

Unsullied_Spy 04.01.2009 03:29 AM

Ouch Mike! Looks like it's back to MMMs for you.

tom255 04.01.2009 04:31 AM

Cool, looks like messind with timings on Ezrun 150 are FATAL
ON max timing what my friend tried esc just wont start (Seems like some bug in brains), tried with different motors no luck, unable reset ESC settings to default with Program card or Set buton. Today will try with outrunner and lower voltage.
On min timing and some circumstances esc burning.
COOL

gabry356 04.01.2009 07:48 AM

I had same problem with 80amp from hw...i used it a while without problem, I moved timing to 0 and it cooked in 3 minutes...
I wanted to increase battery lasting...I think i'll never get less than std timing in future

afonsos 04.01.2009 10:27 AM

Bingo.
Since i've changed timming to 0 my ezrun 80 started to act weird till it stop working :oops:
I believe there are to many people with same issues

Aceldama 04.01.2009 10:36 AM

I've sent this thread to HobbyWing support... I hope they release an updated firmware to solve this... otherwise I'll be seriously considering the MMMv3 or Tekin system.

superek4 04.01.2009 10:46 AM

Yes dun try

Raze ST Truggy 04.01.2009 10:54 AM

Quote:

Originally Posted by Aceldama (Post 275188)
I've sent this thread to HobbyWing support... I hope they release an updated firmware to solve this... otherwise I'll be seriously considering the MMMv3 or Tekin system.

If they do release an updated firmware how would I update my 80A HW esc? I haven't noticed any usb ports or anything of that sort on it.

-Brian

Aceldama 04.01.2009 10:58 AM

Quote:

Originally Posted by Raze ST Truggy (Post 275191)
If they do release an updated firmware how would I update my 80A HW esc? I haven't noticed any usb ports or anything of that sort on it.

-Brian


The Advanced Programming Box is supposed to have USB connectivity for updating firmware.

Advanced Programming Box

Always Dreamin 04.01.2009 06:18 PM

Anyone know if they have fixed this yet? I really want their 150A esc over a MMM for the price, but with the failures I'm seeing, I'm not too sure...

Also, i'm guessing timing is the only thing that does it? Or do I just not even mess with the stock settings?

suicideneil 04.01.2009 06:46 PM

Fubar....

superek4 04.01.2009 06:50 PM

Quote:

Originally Posted by Always Dreamin (Post 275296)
Anyone know if they have fixed this yet? I really want their 150A esc over a MMM for the price, but with the failures I'm seeing, I'm not too sure...

Also, i'm guessing timing is the only thing that does it? Or do I just not even mess with the stock settings?

they r fixing it, it's only the zero punch thingy the rest are ok

lutach 04.01.2009 07:09 PM

Hobbywing looks to be having some trouble. I wonder what's going on. Sometimes I think it pays to test and then test again and again to make sure a product is free of any defect. I know those 2 Speed Passion monkeys will be scratching their heads when their 4S 80A expensive version starts doing this when they are set a 0 degree timing.

e-mike 04.01.2009 08:18 PM

:whistle:so i just hope that they will fix that.....melt a esc in less than 3 sec.....really weird.....my firend here had 2 150 amps unit and now he scared to run it...

jsr 04.01.2009 08:45 PM

Considering MMM is on v3, it's not like other ESCs don't have problems either. Albeit, perhaps the failure modes of the MMMs weren't as severe, but they still died and became useless to the owners.
It's definitely an issue, but an avoidable one if you don't set the timing to 0.

Always Dreamin 04.01.2009 09:34 PM

but isn't the MMM backed by CC? which i heard was quite good in CS. if something goes wrong with your hobby wing, do you send it back to china? At that point it might not even be worth it.

hemiblas 04.01.2009 09:59 PM

IF you build them, they will smoke. Looks like no one is safe. Couple weeks ago everyone was raving about how great the HW controllers were compared to the MMM. Now that they have actually sold a couple we are going to see some go bad. Sorry for your loss, but it seems like the MMM is still the best bet for reliability and support. You've got a handful of these things that have sold vs thousands of MMM at this point. We see 5 MMM go bad and everyone worries, but 5 out of thousands is not bad percentage wise. I hope they fix it though.

superek4 04.01.2009 10:18 PM

Quote:

Originally Posted by hemiblas (Post 275338)
IF you build them, they will smoke. Looks like no one is safe. Couple weeks ago everyone was raving about how great the HW controllers were compared to the MMM. Now that they have actually sold a couple we are going to see some go bad. Sorry for your loss, but it seems like the MMM is still the best bet for reliability and support. You've got a handful of these things that have sold vs thousands of MMM at this point. We see 5 MMM go bad and everyone worries, but 5 out of thousands is not bad percentage wise. I hope they fix it though.

hi bro, mmmv3 still hv problems after 1 to 2 yrs production. Many ppl are still burning mmm till now?

Hw products are not too bad I started with their plane esc 100amps till now it's still in my CRT truck.

Yes we may hv burnt afew 150amp but once it's solved it will be a great product how often do u hv a esc that run abt 50 degrees after 30min run?

I gv up mmm becoz there's no reason y it burns n can be any reason. HW burnt becoz of software(this time) I intend to try again as I dun hv the budget to run tekin rx8. No one knows can rx8 last too?

Hw is cheaper, can program on d spot a bit big though. Other wise I hv no complain.

Just my tots:)

Takedown 04.01.2009 10:18 PM

Its just a phase. If and when the firmware is updated that bug should be long gone. I mean take for instance the mmm, it had two versions before the v3 because of excessive esc failures. I definately think hobbywing got off to a much better start...

superek4 04.01.2009 10:30 PM

Quote:

Originally Posted by Takedown (Post 275352)
Its just a phase. If and when the firmware is updated that bug should be long gone. I mean take for instance the mmm, it had two versions before the v3 because of excessive esc failures. I definately think hobbywing got off to a much better start...

yes totally agree:)

hemiblas 04.01.2009 10:55 PM

Quote:

Originally Posted by Takedown (Post 275352)
Its just a phase. If and when the firmware is updated that bug should be long gone. I mean take for instance the mmm, it had two versions before the v3 because of excessive esc failures. I definately think hobbywing got off to a much better start...

Cant argue with that.

kostaktinos_mt 04.01.2009 11:46 PM

thought i would put my 0.02 in the jar...

both the 80a and the 150a have already gone through 2 firmware revisions through the last month; the last one was released about 3 days ago... unfortunately the firmware release notes are literally useless as to what they fix/change/improve...

personally, i never had a problem with most of my hws [1x 80a, 1x 150a, 1x35a, 1x60a, 1x xerun120], while 3 of them [80a, xerun120, 35a] have literally been through hell and back [i even -purposely- tortured my 30$ ezrun35a in a 1/8 buggy with a 3s lipo and a maxximum to see when it will fry; it didn`t; don`t ask me 'how and why' though]... i did however manage to kill a xerun60 recently, but it was my fault [was deliberately pumping 4s in a '3s max' esc]...

...by no means should one consider any esc as undestructible or flawless however...

littlegiant 04.02.2009 06:10 AM

I did notice excessive current draw using the hw80A on my e-savage. It used to be drawing 81A peak. But now it is all in the 120A region. And run time is noticeably shorter. My batteries are still giving the same capacity so I don't think its the batteries. Maybe I should try a higher timing? Using the nxt setting from zero now. I guess my esc is very close to getting burnt huh. :D

Will update u guys on the current draw over a high timing during this weekend. Till then.

jsr 04.02.2009 10:23 PM

If you're drawing 50% more current, I'd definitely switch back to the timing you were using before, or at least one that draws less current. Honestly, I don't see huge differences in performance when I adjust timing on the HW or CC ESCs, so I would run the one that gives me the longest runtime.

hemiblas 04.02.2009 11:03 PM

Littlegiant,
You may want to check your motor. 120A peak is pretty high. If you are geared for around 40mph on 4S it should be around 80 plus or minus depending on the motor combo. It could mean your motor is going bad and drawing too much current.

could be batteries too if they are having trouble holding voltage then the current spikes higher. I dont think higher timing is the answer though.

littlegiant 04.03.2009 12:16 AM

Quote:

Originally Posted by jsr (Post 275735)
If you're drawing 50% more current, I'd definitely switch back to the timing you were using before, or at least one that draws less current. Honestly, I don't see huge differences in performance when I adjust timing on the HW or CC ESCs, so I would run the one that gives me the longest runtime.

Opps sorry i din't make it clear enough. I meant 81A peak on the Mamba max on 4S (low timing, not lowest) compared to the 120A peak on the HW80A at setting 2 (on 4S as well). And oh same gearing as well.

It doesn't make sense considering my truck has the same performance using 2 different escs and so I was thinking if increasing the timing on the hw80a will make any difference.

littlegiant 04.03.2009 12:25 AM

Quote:

Originally Posted by hemiblas (Post 275749)
Littlegiant,
You may want to check your motor. 120A peak is pretty high. If you are geared for around 40mph on 4S it should be around 80 plus or minus depending on the motor combo. It could mean your motor is going bad and drawing too much current.

could be batteries too if they are having trouble holding voltage then the current spikes higher. I dont think higher timing is the answer though.


My lipos are good. They are holding up. They aren't even breaking a sweat with the current drawn by the motor. The peak only increased that much after I've switched over to a HW80A. I don't see any decline in motor power. On the contrary, my e-savage seems to be running faster. Batt runtime is lower though.

One thing I've realised is that my feigao 5407L 3511kv at 4s is rotating at almost 52k rpm. But it has been holding up for the past 6 mths or so. The power seems to be as good as new. Maybe I've got a good one? The motor temp used to be around 80C. But after a chassis mod, the temp dropped to 61C. The entire chassis now acts as a heatsink for the motor which explains the the drop in motor temp. And oh the chassis + GP arms mod did increase the weight of my e-savage by close to 200g. It now weighs slightly above 4.1Kg. But a mere 200g increment in weight shouldn't be seeing a 50% increase in peak current right?

jsr 04.03.2009 01:03 AM

No, I don't think it's the weight. It might be the motor drawing more current as someone mentioned above. I'd adjust the timing to see if it makes a different. Adjusting timing does change current draw, but I wouldn't think that much. It may be a combination of things all coming together. 52krpm is really high for a Feigao.


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