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CommandingSloth · 11-10-2014, 04:43 PM

Alright, so I got this heli at a swap meet, I don't know if its been crashed, the guy who sold it to me told me that he hovered it some but just didn't want it, decided to stay away from helis, since he was a planker. So, tonight I plug in a fully charged battery, I hit throttle hold, it starts to spool up, but then stops, and spins down. I go to the bottome of the transmitter, and push the pitch back up (since I have it set up for beginners), and it starts to spool up and shuts off again. It just kept doing that. Any help would be greatly appreciated, as I know this thing is ancient and I'm sure the amount of people owning one of these old girls is probably still declining. Thanks guys.

OCDRC · 11-10-2014, 05:50 PM

Sounds like Low Voltage Cutoff (highly unlikely), overcurrent caused by a short (less likely) or brown out (most likely) where the BEC in the ESC can't provide enough power to all the servos and receiver. Does the rx light go out when it stops spooling up?

CommandingSloth · 11-10-2014, 06:08 PM

No the rx light stays on the whole time

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OCDRC · 11-10-2014, 06:14 PM

Well, only other thing I would suggest is running through radio/heli setup again and make sure that the throttle curves etc are set properly. Others will have more ideas than me I'm sure.

CommandingSloth · 11-10-2014, 06:16 PM

Well the thing is, is that it doesn't matter how many rpms it's getting, it's more like after 5 or so seconds it just cuts the power. I can hit throttle hold, and turn it back off again and it will start to spool up again, but will shut off.

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Aryemis · 11-11-2014, 02:41 AM

Possibly wrong ESC settings ?

I had that issue on my X3, I didn't have the timing high enough and when I would overspeed it even a little (like in pitch pumps) the ESC would reset in the air.
This could be a more extreme version if it.
Sounds like an ESC issue at any rate.

CommandingSloth · 11-11-2014, 05:47 AM

How would I go about fixing that?

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Aryemis · 11-11-2014, 07:02 AM

Quote:

Originally Posted by CommandingSloth

How would I go about fixing that?

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Well, checking what settings are supposed to be used for your motor and ESC, and the reprogramming the ESC (find how), probably with the sticks.

I've only programmed YGE and YEP ESC's and it's easy to do with the prog card.

CommandingSloth · 11-11-2014, 07:22 AM

I've never done any of that though, so I am not sure how to fix that.

Woody_99 · 11-11-2014, 01:28 PM

I don't think the stock esc has any programming options, that I can remember.

We you say it spools up, and then cuts off, if you get the blades spinning and leave the throttle stick in that spot, will it continue to spin?
If so, like mentioned the throttle curve could be off.
If not, unplug the battery and see if the motor or esc are hot.
Double check the battery too. If it's been used, it can have voltage and take a charge, but not be able to hold voltage under load and the result is what you're seeing.

Hope that helps. Maybe a video?

CommandingSloth · 11-11-2014, 03:15 PM

Quote:

Originally Posted by Woody_99

I don't think the stock esc has any programming options, that I can remember.

We you say it spools up, and then cuts off, if you get the blades spinning and leave the throttle stick in that spot, will it continue to spin?
If so, like mentioned the throttle curve could be off.
If not, unplug the battery and see if the motor or esc are hot.
Double check the battery too. If it's been used, it can have voltage and take a charge, but not be able to hold voltage under load and the result is what you're seeing.

Hope that helps. Maybe a video?

I will record a video right after this response. If I leave the stick in that spot, the blades spin down, they will not keep rotating. Its almost as if it looses power. It just cuts off, and starts spinning down, almost like if throttle hold was hit. As I mentioned earlier, I dont think its related to how fast it's spinning, its just a matter of time before it shuts off.

CommandingSloth · 11-11-2014, 04:17 PM

Here is the video...
https://www.youtube.com/watch?v=0AYc...ature=youtu.be
Also, I did notice that the first time it spools up, it goes for a little bit longer, but then shortens.

OCDRC · 11-11-2014, 05:21 PM

Well, all I can think of when I see that behavior is LVC, maybe check to see if the ESC capacitors are damaged? Try another pack?

CommandingSloth · 11-11-2014, 05:23 PM

I have tried other packs already. And what is the lvc?

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OCDRC · 11-11-2014, 05:29 PM

Low voltage cutoff. Emergency failsafe to keep you from accidentally discharging a LiPo too much. For a 3S pack it's usually set around 9 volts which is way lower than what a 3S pack should be flown to, but it's still high enough that if you accidentally hit it, your pack isn't going to be toast.
Do you have another ESC to try just for testing purposes?
BTW OT, but sent you a FR on Origin

CommandingSloth · 11-11-2014, 05:36 PM

How do I check the esc capacitors? And the batteries I have are 2200 mah 2s

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gstoneberg · 11-11-2014, 05:40 PM

The 400 is a 3s helicopter (at least mine is). I suspect that's your problem.

CommandingSloth · 11-11-2014, 05:44 PM

You mean to tell me that helis have to have certain cells? Why can't I fly a 2s on a 400? And is there any way I can convert it to a 2s?

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OCDRC · 11-11-2014, 05:47 PM

3S is average for a 400 class heli. The T250's use 3S as well, just lower capacity. Anything 500 class to 600 use 6S (most 600's are on 12S now though) and 700+ use 12 to 14S.
There is not any way to convert to 2S aside from an ESC and motor change, and I'd highly recommend against it as there would be no power.
Wait, these were the 2200mah Zippy packs you got off HK aren't they?
And NVM on the ESC caps, no need to check them.

CommandingSloth · 11-11-2014, 05:49 PM

Yes, they were. So now I'm stuck with 3 2s batteries that don't have a use. Why didn't I read this anywhere? I even read the manual on the B400, and didn't see that anywhere. I am such a noob. Make me mad at myself. I now won't get to fly for some time until I can scrounge up more money for more batteries, and more conversion cables. I swear, I will never get to fly them.

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11-10-2014, 04:43 PM	#1 (permalink)
CommandingSloth Registered Users Join Date: May 2014 Location: Indiana	Spool up problem... Noob here, and need some help here. Alright, so I got this heli at a swap meet, I don't know if its been crashed, the guy who sold it to me told me that he hovered it some but just didn't want it, decided to stay away from helis, since he was a planker. So, tonight I plug in a fully charged battery, I hit throttle hold, it starts to spool up, but then stops, and spins down. I go to the bottome of the transmitter, and push the pitch back up (since I have it set up for beginners), and it starts to spool up and shuts off again. It just kept doing that. Any help would be greatly appreciated, as I know this thing is ancient and I'm sure the amount of people owning one of these old girls is probably still declining. Thanks guys.

11-10-2014, 05:50 PM	#2 (permalink)
OCDRC Registered Users Join Date: Dec 2011	Sounds like Low Voltage Cutoff (highly unlikely), overcurrent caused by a short (less likely) or brown out (most likely) where the BEC in the ESC can't provide enough power to all the servos and receiver. Does the rx light go out when it stops spooling up? __________________ T-Rex 600e Pro, T-Rex 500, Blade 450X, various micros, all on TX16S

11-10-2014, 06:14 PM	#4 (permalink)
OCDRC Registered Users Join Date: Dec 2011	Well, only other thing I would suggest is running through radio/heli setup again and make sure that the throttle curves etc are set properly. Others will have more ideas than me I'm sure. __________________ T-Rex 600e Pro, T-Rex 500, Blade 450X, various micros, all on TX16S

11-11-2014, 02:41 AM	#6 (permalink)
Aryemis Registered Users Join Date: Aug 2013	Possibly wrong ESC settings ? I had that issue on my X3, I didn't have the timing high enough and when I would overspeed it even a little (like in pitch pumps) the ESC would reset in the air. This could be a more extreme version if it. Sounds like an ESC issue at any rate. __________________ "Beater" Mini Prôtos stretch 6S : Scorpion 2520-1360kv, Edge 353SE "Princess" Goblin 570 stretch 12S : Xnova 4025-560kv, Cyclone 615 FrSky Taranis - Heli-X 5 - MKS, YGE, SK540 - Yamaha XJ6F

11-11-2014, 01:28 PM	#10 (permalink)
Woody_99 Registered Users Join Date: Feb 2009	I don't think the stock esc has any programming options, that I can remember. We you say it spools up, and then cuts off, if you get the blades spinning and leave the throttle stick in that spot, will it continue to spin? If so, like mentioned the throttle curve could be off. If not, unplug the battery and see if the motor or esc are hot. Double check the battery too. If it's been used, it can have voltage and take a charge, but not be able to hold voltage under load and the result is what you're seeing. Hope that helps. Maybe a video? __________________ When too much is just not enough...

11-10-2014, 06:08 PM	#3 (permalink)
CommandingSloth Registered Users Thread Starter Join Date: May 2014 Location: Indiana	No the rx light stays on the whole time Sent using Tapatalk from the International Space Station

11-10-2014, 06:16 PM	#5 (permalink)
CommandingSloth Registered Users Thread Starter Join Date: May 2014 Location: Indiana	Well the thing is, is that it doesn't matter how many rpms it's getting, it's more like after 5 or so seconds it just cuts the power. I can hit throttle hold, and turn it back off again and it will start to spool up again, but will shut off. Sent using Tapatalk from the International Space Station

11-11-2014, 05:47 AM	#7 (permalink)
CommandingSloth Registered Users Thread Starter Join Date: May 2014 Location: Indiana	How would I go about fixing that? Sent using Tapatalk from the International Space Station

11-11-2014, 07:22 AM	#9 (permalink)
CommandingSloth Registered Users Thread Starter Join Date: May 2014 Location: Indiana	I've never done any of that though, so I am not sure how to fix that.

11-11-2014, 04:17 PM	#12 (permalink)
CommandingSloth Registered Users Thread Starter Join Date: May 2014 Location: Indiana	Here is the video... https://www.youtube.com/watch?v=0AYc...ature=youtu.be Also, I did notice that the first time it spools up, it goes for a little bit longer, but then shortens.

11-11-2014, 05:21 PM	#13 (permalink)
OCDRC Registered Users Join Date: Dec 2011	Well, all I can think of when I see that behavior is LVC, maybe check to see if the ESC capacitors are damaged? Try another pack? __________________ T-Rex 600e Pro, T-Rex 500, Blade 450X, various micros, all on TX16S

11-11-2014, 05:23 PM	#14 (permalink)
CommandingSloth Registered Users Thread Starter Join Date: May 2014 Location: Indiana	I have tried other packs already. And what is the lvc? Sent using Tapatalk from the International Space Station

11-11-2014, 05:29 PM	#15 (permalink)
OCDRC Registered Users Join Date: Dec 2011	Low voltage cutoff. Emergency failsafe to keep you from accidentally discharging a LiPo too much. For a 3S pack it's usually set around 9 volts which is way lower than what a 3S pack should be flown to, but it's still high enough that if you accidentally hit it, your pack isn't going to be toast. Do you have another ESC to try just for testing purposes? BTW OT, but sent you a FR on Origin __________________ T-Rex 600e Pro, T-Rex 500, Blade 450X, various micros, all on TX16S

11-11-2014, 05:36 PM	#16 (permalink)
CommandingSloth Registered Users Thread Starter Join Date: May 2014 Location: Indiana	How do I check the esc capacitors? And the batteries I have are 2200 mah 2s Sent using Tapatalk from the International Space Station

11-11-2014, 05:40 PM	#17 (permalink)
gstoneberg Registered Users My HF Map location Join Date: Feb 2013	The 400 is a 3s helicopter (at least mine is). I suspect that's your problem. __________________ George - Goblin700(iKon2), Trex550e(iKon), Oxy3(microiKon), Taranis

11-11-2014, 05:44 PM	#18 (permalink)
CommandingSloth Registered Users Thread Starter Join Date: May 2014 Location: Indiana	You mean to tell me that helis have to have certain cells? Why can't I fly a 2s on a 400? And is there any way I can convert it to a 2s? Sent using Tapatalk from the International Space Station

11-11-2014, 05:47 PM	#19 (permalink)
OCDRC Registered Users Join Date: Dec 2011	3S is average for a 400 class heli. The T250's use 3S as well, just lower capacity. Anything 500 class to 600 use 6S (most 600's are on 12S now though) and 700+ use 12 to 14S. There is not any way to convert to 2S aside from an ESC and motor change, and I'd highly recommend against it as there would be no power. Wait, these were the 2200mah Zippy packs you got off HK aren't they? And NVM on the ESC caps, no need to check them. __________________ T-Rex 600e Pro, T-Rex 500, Blade 450X, various micros, all on TX16S

11-11-2014, 05:49 PM	#20 (permalink)
CommandingSloth Registered Users Thread Starter Join Date: May 2014 Location: Indiana	Yes, they were. So now I'm stuck with 3 2s batteries that don't have a use. Why didn't I read this anywhere? I even read the manual on the B400, and didn't see that anywhere. I am such a noob. Make me mad at myself. I now won't get to fly for some time until I can scrounge up more money for more batteries, and more conversion cables. I swear, I will never get to fly them. Sent using Tapatalk from the International Space Station

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