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› Is that a BBQ , nope its another castle cremations
03-05-2012 10:57 PM  6 years agoPost 41
Bodyshop

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Normal, IL - USA

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On the topic of spool up being difficult on ESCs:

It has been my experience that my ripple voltage is at it's highest during spool up. The amp draw hasn't been very high has previously posted. I have found that the ripple voltage peaks right where the controller over shoots the target rpm as it finishes up it's spool.

Now the question is what to do about it. If anything.

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03-31-2012 10:57 PM  6 years agoPost 42
fast88lx

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NY

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burn baby burn

Team Synergy, Team Ikon, Team Scorpion, Team Thunder Power, Team ProgressiveRC

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04-01-2012 08:23 PM  6 years agoPost 43
yannick

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South Korea

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Well what i do not figure out here is if we are pulling higher amps than the rating of the plug, i can see 2 main things happening:
The heat generated will unsolder the wires if the soldering is the weak point, or it will melt the contacts plates and the plug would not be unpluggable anymore...

In any case, something physical should happen to the plug...

On the other hand,if the plug was really restricting the amps, and if that was the reason for the esc failing, should not all guys flying 20 or 25c batteries see their Cc esc busting into flame immediately?

The eventual reduction of amps at the inlet of the esc shall not lead to an esc damage but only a power reduction, only the plug should be damaged then...

My 2 cents olny

Is it me or this time the ground was higher than last time??

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04-01-2012 10:54 PM  6 years agoPost 44
1004ron

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Louisville, KY - USA

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yannick
Well what i do not figure out here is if we are pulling higher amps than the rating of the plug,
What is the rating of the Deans plugs - do you have a reference from the manufacturer ?
Once we know what the manufacturers rating is, we can make an educated choice on what connector to use - most of the parts that we select for use on our helis we go through this type of selection process, and where practical chose a rating slightly higher than needed.
i can see 2 main things happening:
The heat generated will unsolder the wires if the soldering is the weak point, or it will melt the contacts plates and the plug would not be unpluggable anymore...

In any case, something physical should happen to the plug...

On the other hand,if the plug was really restricting the amps, and if that was the reason for the esc failing, should not all guys flying 20 or 25c batteries see their Cc esc busting into flame immediately?

The eventual reduction of amps at the inlet of the esc shall not lead to an esc damage but only a power reduction, only the plug should be damaged then...

My 2 cents olny
As the current approaches or exceeds the design current limit of a connector, the first thing of note will be an unwanted voltage drop across the connector, and this voltage drop will be seen as ripple at the input on the ESC, which it has difficulty handling (whatever brand you chose).

If the current exceeds the rating of the connector for some time, the contact resistance and current will generate heat, and depending on how much you may see resulting physical damage.

Goblin 700 AR7200BX / T550E V2 AR7200BX / 450 Pro FBL, GT5

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04-01-2012 11:30 PM  6 years agoPost 45
fast88lx

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NY

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Bottom line I have been using deans on all my machines for two years no problems on a 120 Hv and a 80 Hv never had a problem now they make changes in design and now we have problems with the esc how do you explain that the old design works good new design bad

Team Synergy, Team Ikon, Team Scorpion, Team Thunder Power, Team ProgressiveRC

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04-01-2012 11:57 PM  6 years agoPost 46
fast88lx

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NY

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Team Synergy, Team Ikon, Team Scorpion, Team Thunder Power, Team ProgressiveRC

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04-02-2012 12:24 AM  6 years agoPost 47
jadams

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East coast USA

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04-02-2012 12:25 AM  6 years agoPost 48
1004ron

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Louisville, KY - USA

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fast88lx
Is the bottom line Castle cremations should be banned from the RC hobby world until they fix the problem they are hazard to people and everybody that uses them AMA should stand up and put a stop to all of this there is your bottom line
I think that you'll find a good few companies banned from RC hobbies and forced out of business using your "bottom line", and the biggest losers will be us !

Goblin 700 AR7200BX / T550E V2 AR7200BX / 450 Pro FBL, GT5

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04-02-2012 01:45 AM  6 years agoPost 49
fast88lx

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NY

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Team Synergy, Team Ikon, Team Scorpion, Team Thunder Power, Team ProgressiveRC

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04-02-2012 03:22 AM  6 years agoPost 50
Rsams

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Fort Dodge, IA

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We are flying a castle hv 160 on our synergy e7 along with a kde 700-495 motor on a 12s system. From what I have been told by Matt Botos and some other ppl out there we have the biggest power hogging set there is and will empty a battery pack fast. Castle told me the same thing so we must be running a big amount of current through this and the esc has not even gotton warm hardly. Average temp is around 90 ot 100 degrees. We are running the EC5 connectors on this setup. I understand that cc had some problems but ppl have said they fixed it. I think they must have as our setup is working great so I really dont think banning them is the thing to do. I run them on everything I have right now and not one problem so I am not changing till it becomes one. We have several other ppl around here using them with not one problem either. In our area cc is about 10 to 1 of all other brands put together. If that is the case in the USA which I dont know if it is or not but if so if they had a 1% failure rate that ratio would make it look real bad even if it aint. Dont know if that is the case or not tho for sure.

Ryan,Team JR, Team Morgan Fuels, Team KDE Direct, RCBearings.com Tech Rep

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04-09-2012 04:33 AM  6 years agoPost 51
FLYF15

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Thought this was interesting. I just started running the Castle 120 again and thought the ripple looked weird. Is this similar to any of yours? It looks like it slowly goes back to zero. This is different that what I saw when I was running the first version. I'm still not happy with the ripple. Thoughts?

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04-09-2012 04:02 PM  6 years agoPost 52
bkervaski

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Birmingham, AL, USA

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We are flying a castle hv 160 on our synergy e7 along with a kde 700-495 motor on a 12s system.
Same setup here and same results, cool esc, governor works awesome, smooth powerful flights, seemingly unlimited torque from this motor.

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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04-09-2012 08:04 PM  6 years agoPost 53
Malc1

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EVESHAM,UK

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We are flying a castle hv 160 on our synergy e7 along with a kde 700-495 motor on a 12s system.
Same setup for me as well on a TRex 700 but mine has not yet had it's test flight.
Looking forward to it

Minicopter Diabolo - Kosmik200,Pyro750-56
SpectraG + G26 3D Max

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04-10-2012 02:00 AM  6 years agoPost 54
Rsams

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Fort Dodge, IA

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Fly15 in looking at your graph the largest ripple was right at first and it really isnt that high I dont think. I am fairly new to this and am learning too but my highest was 2.02 and the average was .32. Your average was .36 with a high a little higher than mine. Some things that may help that I did was shorten my wires coming out of the esc to very short and from the batteries. From what I have read that can have a lot to do with it. Some might be in the gearing too from what castle told me so I am going to gear it different. In using the governor what percentage do you have on the throttle setting that shows up when you enter the rpm range?

Ryan,Team JR, Team Morgan Fuels, Team KDE Direct, RCBearings.com Tech Rep

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04-10-2012 04:19 AM  6 years agoPost 55
FLYF15

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Rsams,
I agree with you, that's some good stuff. I have done things like you talked about. I would like to get the ripple just a little lower still. I am going to see what changing spool up rate does, that's about the last thing I am going to try before putting caps on. By the way, do you see the spikes in ripple like the ones present in my graph? And as far as my settings, I am using almost exactly what is suggested on the castle site. I am running it at 1960rpm with the governor.

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04-10-2012 12:18 PM  6 years agoPost 56
Rsams

rrApprentice

Fort Dodge, IA

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What percent is the most efficency does the motor run at? With the kde it is at 92 percent so what I did was set the gearing at the range where when I run the governor it run at that percent. That is what the rep at castle said to do. If you change the pinion size to get this and then put in the rpm govern you want it will show the percnet the motor will be running at. Just for grins and giggles turn up the rpm govern speed once and fly it and see if it changes. If it goes lower then put on a smaller pinion and turn it back to the rpm you want and see if it goes down. I dont know what speed you have the spool up at but ours is on the lowest spool. We dont get the initial big spike either. Ours was in the middle of the flight when the kid was beating on the chopper.

Ryan,Team JR, Team Morgan Fuels, Team KDE Direct, RCBearings.com Tech Rep

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04-13-2012 05:21 AM  6 years agoPost 57
FLYF15

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Set the governor to 2030 rpm, temp dropped to 106 degrees, and ripple went to about .2 volts average with 2 max at spool up. I think I will run it like this. I liked the extra head speed too, I think it flies just a little nicer.

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04-13-2012 11:12 PM  6 years agoPost 58
Rsams

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Fort Dodge, IA

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sounds better and you can mess with it just a little each direction and who knows maybe you will get it better. At least it sounds like it is heading in a good direction.

Ryan,Team JR, Team Morgan Fuels, Team KDE Direct, RCBearings.com Tech Rep

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