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T-REX 550 › Esc blew up
12-09-2012 03:08 PM  5 years agoPost 1
HeliNutAndy

rrKey Veteran

worcester, MA USA

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Today I plugged in my battery pack and I hear a pop and all of my electronics shut down. I am assuming my esc has died. It is the stock esc that came with the helicopter. Do I need to look at anything else on the heli? What should I purchase for an esc?

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12-09-2012 08:37 PM  5 years agoPost 2
NQNA

rrElite Veteran

USA

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I run the Ice 100 with a CC Pro Bec on my Trex 550

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12-10-2012 03:03 AM  5 years agoPost 3
dkshema

rrMaster

Cedar Rapids, IA

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The stock ESC has a switching regulator to provide power to your on-board electronics. With some luck, that "pop" wasn't something in that part of the ESC that could have roasted the electronics.

If you can latch on to a simple 4-cell RC flight battery pack, plug it into your RX, in place of the ESC's input and make sure the radio and all other goodies are OK.

I was fortunate enough three flying seasons ago when my new 550e ESC went poof on its 12th flight. Every MOSFET on the motor control side of the house played Elvis and left the building. But the switching regulator continued to work and I had no damage to the radio and other stuff.

I replaced that dead stock ESC with a Castle ICE 100, and used the CC ICE 100 BEC -- and still do -- three seasons of flying later.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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12-10-2012 04:26 AM  5 years agoPost 4
HeliNutAndy

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worcester, MA USA

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I'm not sure what is going on now. I plugged in a small 4.8v battery straight into the receiver and one of my cyclic servos began to smoke and zero lights on the receiver I unplugged it as quick as I could. I'm really frustrated. I have been doing my best to baby the helicopter and I wouldn't expect plugging in my Lipo would fry my electronics. It's getting late and I won't be able to do much in the way of troubleshooting for a few days. Thx for the help.

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12-10-2012 04:45 AM  5 years agoPost 5
dkshema

rrMaster

Cedar Rapids, IA

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Could be the regulator part of your ESC is what went "pop" and that might not be good for your electronics.

Was the servo stalled at the time you plugged things in? Mechanically bound so it couldn't move?

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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12-10-2012 04:45 AM  5 years agoPost 6
AWittleWabbit

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O.C., CA

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Was the polarity correct?

Heli-itis sufferer.

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12-10-2012 05:43 AM  5 years agoPost 7
dkshema

rrMaster

Cedar Rapids, IA

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Plugging your 4.8 volt battery into your receiver backwards won't kill anything.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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12-10-2012 12:07 PM  5 years agoPost 8
HeliNutAndy

rrKey Veteran

worcester, MA USA

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Mechanically bound so it couldn't move?
The servo was not bound. It is or was one of my cyclic servos that is attached to the swash. I placed the helicopter on my work bench yesterday to adjust the rudder delay settings in my 3G unit. I went flying the day before without incident. I plugged my lipo into my esc like I usually do. I heard the usual esc beep and then I heard a pop and there was a puff of smoke. I do not know where the smoke came from. As suggested I unplugged the esc and tried a receiver pack. When I plugged in the pack one of my cyclic servos smoked very quickly and I unplugged the battery. I am hoping to get some time this week to look at it. If I need to replace everything I don't know what I am going to do. Two out three helicopter that I own have had pricey electrical issues with no explanation. I just purchased some new parts(canopy, carbon tail push rod etc) and it's too bad that I have to dish out money for something I can't even explain. Damn....

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12-10-2012 02:15 PM  5 years agoPost 9
dkshema

rrMaster

Cedar Rapids, IA

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I understand the frustration. Electric power is supposed to be free and easy, and trouble-free.

But on the other hand, the stuff involved is anything but. Being new to the whole heli thing, then having to battle weird happenings is a real test of your determination.

Once you get things ironed out, however, life is relatively uneventful in the electric world.

If there's anything I can to to help, don't hesitate to ask.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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12-10-2012 03:16 PM  5 years agoPost 10
HeliNutAndy

rrKey Veteran

worcester, MA USA

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Thank you Dave I appreciate it. I guess I am going to have to take everything apart to see if I can isolate things a bit. Do you think it's the 3G unit frying things? I just want a working helicopter that does not fry up on it's own. If that means going to the nitro world I am willing to do that. One of my Lipo batteries already caught on fire in my basement and now this. I just want to fly and have some fun with reliable equipment what ever that may be. Thx again.

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12-10-2012 05:11 PM  5 years agoPost 11
dkshema

rrMaster

Cedar Rapids, IA

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The 3G unit won't "fry things". It, like most other parts in the electronics does what it's told, and really doesn't have the ability to make someone draw excess current, or catch fire.

ESCs do fail. Some with catastrophic results -- when the high power side of the unit goes south and starts dumping massive amounts of current into the motor. Some with not so catastrophic results -- as when my stock 550 ESC smoked, the heli was on the ground, spooling up, and there was a puff of smoke and the motor spun down. My electronics survived, as did the motor, but the ESC was toast.

In some cases, the regulator side of the ESC can go south and send full battery voltage to the electronics, most of which will cry foul when shown 22 volts DC.

I asked about the stalled servo, as if there is mechanical binding that keeps the servo from moving, and you run things long enough, you'll take out the servo amplifier. If for some reason the servo was driven all the way to its end (stop inside the servo case itself) that could also cause bad things to happen.

You can have similar things in the nitro world, and a whole new mess of problems to contend with -- running the motor lean and killing it, tuning troubles...

You just need to accept the fact that sometimes, stuff just happens and you need to sit down, figure out why it happened, then come up with a way to resolve the problem forever.

-----

I saw your post about the LiPo fire. You have had a run of bad luck, but you will get it sorted out and start enjoying actually flying.

Check out your remaining electronics in a controlled environment so you can figure out what's good and what's bad. Go from there.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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01-12-2013 10:45 PM  5 years agoPost 12
HeliNutAndy

rrKey Veteran

worcester, MA USA

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I have not gotten to this until now(bad weather etc). I separated the receiver(Spektrum AR8000) from my FBL controller(3G), connected a 4.8v 600 mah nicad battery to the rx and tested my servos individually. All servos appear to function fine except for the elevator. When I plugged it in to the rx it smoked for a second and I could get any response from it. When this originally occurred I noticed the same puff of smoke.

I have a few questions....

1) Is it possible to repair the servo or am I better of tossing it?
2) Do you think my 3G unit is fried or does it have the potential to do any damage because of the esc?
3) I have a telemetry unit connected to the Lipo battery leads so I can obtain battery levels as well as an RPM sensor to obtain head speed. Same question as #2?

TIA,
Andy

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01-12-2013 11:28 PM  5 years agoPost 13
ZS-JAF

rrVeteran

Nazareth, PA

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I am using and like the CC ICE 100 and WR BEC. Better yet is find a used JIVE low voltage.Third option is this Talon.

https://rc.runryder.com/t722585p1/

1. New servo
2. Test the 3G what I have seen from FBL units is they work or they don't. Even if it does work get a AR7200BX or better yet VBAR.
3. I have not used a telemetry unit but test and see if it works it is not controlling anything so worst case it doesn't work.

This is not the cheap route but you will have a much better and more reliable heli. Good luck.

I have a 3D heli, I don't understand why it doesn't do 3D.

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01-12-2013 11:52 PM  5 years agoPost 14
michael88997

rrElite Veteran

Lewisville,Tx

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my friend had this happen to him, turns out the align 600 motor was bad causing a short and he sent all the electronics back for repair

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01-13-2013 12:44 AM  5 years agoPost 15
HeliNutAndy

rrKey Veteran

worcester, MA USA

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I was looking at the Talon. I like the female motor connectors and haven't seen any bad news regarding them.

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01-15-2013 02:50 PM  5 years agoPost 16
HeliNutAndy

rrKey Veteran

worcester, MA USA

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I just order the Talon 90 ESC(Difficult to locate a store that had them in stock) and a new DS610 servo(Elevator) to replace the damaged one. Hopefully I can get the items for the weekend. If this happens to me again no more electrics for me. I'd like to thank everyone for their help

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