Jazz 55-10-32 on Ion

[OICU812]

Whats the recent updates on the 55-10 on the Ion?? :dontknow

[FrittsLogic]

Sorry, I haven't really done much new other than to continue to confirm my last results. I've been working over my Lepton lately to learn new moves (cheaper than crashing my Ion's!). I'm still seeing no real discernable temperature rise even at 1800rpm on the Jazz. With the ability to govern nicely at 1500- 1850 rpm or so, I don't really see a need to go to 2000 on a .90 size. (Again, I'm not a 3D'er yet). With this ESC, I don't need to go to high head speeds to keep the ESC and motor temps under control. Hopefully, I'll get something new in the next week or so. I have some ideas I'm considering...

[FrittsLogic]

Did some more instrumented testing. I've been able to hit 73amps on multiple full power climbouts at the peak power point of the Hacker's motor curve. The Jazz is still ice cold upon landing. I'm not sure I can do anything to make it warm. Maybe it was meant to live on 40volts. RPM's are still staying within +/- 5 rpm of targets.

[BobbySmith]

Fritts that is cool iam dropping a jazz 55( i have a spare) in my Ion i screwed up aset of my 6s packs last week and teh other set isnt coming alive so i figured i would go back to 10s untill i can get my 6s packs striaghtened out i have 4 sets of 5s packs

check it out i geared the 32-4 to 8.3 .1 and i put a big heat sink on the Jazz after doing a little research it has pretty much the same specs as the Shculze 32.55 i use to run

[OICU812]

I was hoping to see results of hard 3D with this esc, I understand though. Sounds like for scale flying fai type stuff and ap work it will be fine though.....

[BobbySmith]

I was hoping to see results of hard 3D with this esc, I understand though. Sounds like for scale flying fai type stuff and ap work it will be fine though.....

We will see tomorrow

[FrittsLogic]

Bobby, I pass the baton on to you for the truly punishing testing. That will be the real test of this thing. I did note that the Jazz seemed to have a better time of controlling the inrunner efficiently than the Actro 32-3. But maybe at the higher motor speeds I'm sure you use, it will have better luck. I can't wait to hear the results. I'm putting a Neu into my second Ion, and would love to feel safe about putting a Jazz on it as well.

[BobbySmith]

I wish i had a Neu to use iam not sure how it is goign to work on the 32-4 we will see hope it goes well i havent to do this for sometime and i guess it is time

[WillJames]

I am pulling 85 or so amps on the Actro setup (FDR borrowed from Bert) with my flying, I don't see how the Jazz could work, but I am definitely all ears...

[BobbySmith]

The thing is Will flying 3d it probably wont work but those are spikes you are seeing not a consistant draw they say the Jazz is good up to 73 amps my guess is wiht a big heat sink it might work who knows as i got one laying around and no other esc to run on 10s with. No worse the 12s testing i did @ the first of the year i will just take it high and if and when it shuts off auto it down @ least we will know its place

[WillJames]

Cool interesting to hear the results B. I will get Bert to email me the graph and we can see what the avg and stuff is. Youa re right 85 was the peak a few times during the flight.

[OICU812]

I have peaked my 55-10-32s; on my Logos over 80 amps before never had a shutdown, I as well am so curious as I would love to have one on the Ion as well.

[Bert Kammerer]

We peak the 55's on our MXR Razors running the Neu 1515 2Y motors at over 85 amps constantly without issue. Of course, our average current is much less than 55 amps.

[OICU812]

If you look at the Mikado forum you will see under a post andy rummer the guts, Ralph B himself posted a graph with amp spikes over 100 amps with the 55-10-32, pretty interesting indeed.

[BobbySmith]

Shoudl have my 10s motors this week and i got the Jazz going in was going to try it on the 32-4 but didnt do it figured i would wait on my Neu and 32-3

[Rickster]

I am just curious .. Are the Controllers rated more off of Wattage thanAmp load?? Say we are flying a 6S setup and popping 85 amps.. The 6S setup is probably going down to a nominal say 20V. That gives us a Wattage of 1700 watts... Now we are running a 10S setup and pulling the same 85 amps but now at a nominal voltage of say 36Volts.. We are now at 3060 Watts..

Does the ESC purhaps see more of a topped out Wattage moreso than a given Amp load? Just a thought ...

Rick

[FrittsLogic]

The limiting factor is the abilty of the materials to withstand internal heat generation. The heat comes from the current flow. Also, to an extent, there are limits for voltage, but it's usually pretty easy to have materials that can handle very high voltage potentials (exception being the operating characteristics of the semiconductor materials). Soooo...bottom line is the current flow is what we sweat. For the jazz, my understanding is that there is no high current shutdown when in mode 4 (heli/governor) and that the only safety feature remaining is a 150F internal temperture shutdown. So if very short yet very high current spikes occur, if they don't last long enough to heat up the guts of the esc, we should be safe.

[epc2]

If you look at the Mikado forum you will see under a post andy rummer the guts, Ralph B himself posted a graph with amp spikes over 100 amps with the 55-10-32, pretty interesting indeed.

I understand that with this mod is good up to 100a, this is Andy Rummer's Jazz:

epc2.

[OICU812]

So basically I am to assume just beng carefull to take off that wrap and somehow glue on a small finned heat sink, but silly Q as I have never done that, what kind of glue would you use or what would be the short answer process to doing something like that? ANyone....? :wink: :?:

[gordohigh]

OICU812, They make a special (thermal) heat conducting paste/epoxy that can be found in electronics stores. Finless did a heat sink mod on the trex 450. If you look in his forum(on this site), there is a video showing how to do it. The principle is the same even though they are two different esc's. Gordo

[gordohigh]

Here is the link to the esc mod page http://www.wavelandps.com/stuff/

It should pretty much give the basics for any speed control adding a heat sink :D


At the bottom of the page he gives a name of someone on this forum that will sell small quanities of the thermal epoxy.

[BobbySmith]

I saw up toi 90 amp spikes on teh Jazz this past weekend and i also forgot to post back here but flying 3d the Jazz wiht a Heat sink on it works flawless on the Ion


Bobby

[OICU812]

I saw up toi 90 amp spikes on teh Jazz this past weekend and i also forgot to post back here but flying 3d the Jazz wiht a Heat sink on it works flawless on the Ion


Would you say you were working it hard or pretty hard for the most part for the flight?

Shawn

[Bert Kammerer]

I have been flying a 90 size electric prototype heli now for a few weeks. The machine runs 690 mm blades and an Actro 32-3 geared at 9.6:1 with the Jazz. I have no heat sink and I'm seeing 110 amp peaks all the time. Average current is less than 55 amps (about 46), but still should be enough to cause issues in theory. I am not seeing a single problem though. However, I have the ESC mounted in an open area at the bottom of the heli where there's plenty of ventilation.

[misskimo]

well , I went a head and bought me a schulze 32-80 so I dont have to worry any , weight is just a smidge higher than the kontronics , YEH!!!!