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05-10-2013 01:58 PM  6 years ago
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Helicek

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istanbul - turkey

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Jive 80+ HV question
Hi all,
I have built a new 800 class helicopter for aerial photo. It has not flown yet:
Motor......................= Align RCM-BL700MX
rpmv............ ..........= 470
gear ratio................= 12,5 : 1
main rotor rpm........= 1300
power......................= 12S LiPo
total flying weight....= 11kg

I put in a new Jive 80+ HV esc. Today I am testing it on the work bench.

1-Without the main blades, I connect the (2x6S packs in series)12S lipo battery and I advance the throttle.
2-The rotor picks up speed and spins steady.
3-Then the esc shuts down, led blinking 8 times.

4-I repeat the same test with only 1x6S pack. The esc works normal and won't cut off.

What could I be doing wrong?
Thanks,
Ahmet
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05-10-2013 02:27 PM  6 years ago
wrongler

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Brewerton, New York

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Not sure, but maybe if you redo the setup sequence it will cure it. Did you set it to mode 1,4?Bill Whittaker
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05-10-2013 02:38 PM  6 years ago
Helicek

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Did you set it to mode 1,4?
? ? ?
I have set it to mode 11.
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05-10-2013 03:01 PM  6 years ago
protullo

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Milan Italy

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Hi
try to reset jive (set to mode 1)
be sure that when programming the full throttle is 100%
when programming use 12s at fully charge
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05-10-2013 04:10 PM  6 years ago
Helicek

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istanbul - turkey

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Hi Protullo and Wrongler,
thank you for your help.

Ahmet
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05-10-2013 05:23 PM  6 years ago
protullo

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Now does it work?
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05-12-2013 09:49 AM  6 years ago
Helicek

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istanbul - turkey

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Hi protullo,
yes, after a reset followed by normal heli setup, the esc worked as "expected" on the bench. I will probably test fly it on wednesday and will post the results here.
Thanks again,
Ahmet
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05-12-2013 12:03 PM  6 years ago
sawdogg73

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St. Louis, MO

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This is more of a question.

Is the Jive 80hv big enough for a 800 size heli? I use it on my Logo 600sx 12s and the YGE 160HV on my Logo 800 Xxtreme. I had a extra Jive 80hv that I was going to put on my Trex Trekker 800 but opted for the CC 160HV.

I fill more comfortable flying knowing I have a Kontronik or YGE but was on a budget when I modified my Trex Trekker 800.

Please let me know how it flies with the 80 Jive and the current spikes you get. I might change out the cc 160 for he Jive 80hv.

Thanks,

Joe
We Build, We Fly, We Crash! Then start all over again.
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05-15-2013 02:53 PM  6 years ago
Helicek

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istanbul - turkey

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sawdogg73,
I will report soon.
Ahmet
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05-28-2013 07:05 AM  6 years ago
95nostalgia

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Jive 80HV+
I have used the Jive 80HV+ on several 800 size Vario's with no issues what so ever. Not any warmth at all. Headspeed was 1170rpm. with the 1780mm rotor span. Scorpion and KDE motors. 12S. And I have a cheap new one listed for sale.
God created only a few perfect heads...the rest he put hair on them.
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05-30-2013 09:14 AM  6 years ago
Helicek

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istanbul - turkey

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Hi all,
I have test flown the new AP heli yesterday. The newly manufactured (and repaired) airframe/cam mount performed as expected.
The Jive 80hv handled the 10kg heli reasonably well on 12S. I noticed the head speed dropped from initial 1270rpm to 1100rpm as the LiPo voltage went down from 50V to 45V. I must be doing something wrong here.

I have set up a typicall normal, st-1 and st-2 flight conditions for this heli. Normal is for take off and landing. St-1 and st-2 are for altitude hovering and flying around.
My throttle curves are:
Normal 0% then 75% straight
st-1 80% straight
st-2 85% straight

To get the desired 1250rpm head speed (at 80% throttle) I increased the motor/main gear ratio to a 17÷1. I noticed the BL700MX motor gets rather warm.

Let me know what you think pls.
Ahmet
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05-30-2013 09:33 AM  6 years ago
95nostalgia

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Programming Kontroniks
Congrats on the testing. My Scorpion ran hot (approx. 116-119F) whereas the KDE ran cooler but still pretty warm. Nature of he beast I think.

Suggestions for programming a Jive for consistent rotor speed.
1.Program Mode 1 which is the default. This will clear out any garbage left from prior programming.

2.Program Mode11. This is the mode that allows for consistent rotor speed.

3.Program Mode 10 just for the heck of it. Mode 10 is the KSA mode needed for some motors to make them compatible and is recommended often by Kontroniks and motor people.

4.Use programming card to set blade rotation, slow spoolup etc as you wish.

5.Reset throttle deadband using throttle travel adjustment.

6.Programming now complete. Do not operate yet until you have fully charged your OLDEST, WEAKEST set of 12s batteries. During your first spool up, the ESC will develop a memory about the battery condition (and the worst case scenario of the weak batteries). Spool up to your desired headspeed by checking with a tach. Slowly increase your throttle values in throttle curve until you reach that rpm. I set a 1780mm at 1170rpm headspeed.

6.Shut down. Enter that throttle value straight across like you have now.

7.Before next flight. Remove old batteries and insert newer ones. Regardless of old or new batteries, every startup your headspeed will be maintained at your target. Mode 11 will pull from the batteries what it needs (whatever their condition) to achieve the desired target headspeed. Only exception is when your battery is depleted so far...then nothing will fix the headspeed. It's going down slow or fast. Mine varied only 5rpm or less between all startups.

Hope this helps.
God created only a few perfect heads...the rest he put hair on them.
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05-31-2013 10:03 AM  6 years ago
Helicek

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istanbul - turkey

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95nostalgia,
Thanks for the detailed explanation pal.
Can you explain what you mean by:
5.Reset throttle deadband using throttle travel adjustment.
?
I am flying a JR 9X on Jeti Duplex 2.4.
Ahmet
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05-31-2013 03:27 PM  6 years ago
95nostalgia

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Throttle Deadband Removal
By doing the following procedure, you remove any dead zone (buffer zone) at the beginning (lo) and end (hi) throttle stick range. So as soon as you move the throttle stick, there will be immed. throttle with no hesitation.

1.Turn TX on and put throttle stick to LOWEST position. Leave it there.
2.Go to TX menu "travel throttle adjustment" and set the low setting to a very low number such as 35%.
3.Plug in battery to heli RX. Heli should not start up as long as the stick stays in the low position.
4.Watch the ESC LED. Slowly increase the throttle travel adjustment % for low stick ON YOUR RADIO (not the stick) until the LED just lights up. Diff. radios have diff. numbers but expect something like 80%. Add two more percentages to that (example 82%).
5.UNPLUG HELI BATTERY. Failure to do so in next step will cause blades to spin.
6.Set TX throttle travel adjustment for the HIGH stick position to the same number as the lo (example was 82%).
7.Done

Even though your total travel percentages are (in example) only 82%, you have removed the dead areas and now have 100% effective throttle.

Let me know how it all goes.
God created only a few perfect heads...the rest he put hair on them.
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05-31-2013 03:48 PM  6 years ago
95nostalgia

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Jive
FYI, there is a diff. between the Jive 80HV and 80HV+ with the latter capable of more power. I would suggest that, at least in my 800 Varios, that the 8oHV+ is the lowest ESC I would use. Many would use a 120 in other brands of ESC's. But the internal components of a Kontroniks are heavy duty and of excel. quality. They are conservatively rated and capable of much more than the numbers suggest. I have flown 80+ flights on the last Vario with no ESC warmth or issues. No sales pitch but I have a new 80HV+ listed in classifieds if you need one and it is the one I would recommend for an 800.
God created only a few perfect heads...the rest he put hair on them.
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06-01-2013 06:47 PM  6 years ago
Helicek

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istanbul - turkey

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Point taken.

Ahmet
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