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HomeAircraftHelicopterHelicopter Main Discussion › Castle 120 shut down causing crash UPDATE!
12-06-2012 02:14 PM  5 years agoPost 21
Dr.Ben

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Richmond, VA, USA

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Another detail. Current spikes well in excess of the logged peaks can still be occurring. They happen so quickly that the logger does not record them, but the controller absolutely see them.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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12-07-2012 07:10 PM  5 years agoPost 22
Santiago P

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South West, Ohio

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Watts: 4849 MAX
Temp: 203 MAX
RPM: 2364 MAX

Pulling 4849watts, are you aware of the limitations of your setup?
You need a bigger ESC

2364 RPMs on a 700! What are you doing? WC speed runs?
Do you know what that does to the head thrust bearings?

Santiago

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12-08-2012 04:22 AM  5 years agoPost 23
honda411

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Surprise, AZ USA

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hahaha easy now.

I dont think 4849 watts is that much. Im not an electronics smarty with these things. BUT, this motor is capable of pulling wayyyy more than that. Others I believe are running same motor esc setup and fly harder.

The temp is up and makes me wonder if it was the cause.

RPM: That was probably on an unloaded rotor disk during a maneuver. My gov is set to 1800-2100-2200. I ALWAYS fly 2100. And yes, im aware of the high head speed damages that can and will occur.

The highest AMPS drawn for the esc was not close to the cutoff limit.

Im stumbled. Motor will be torn apart once I can get this other garbage of a heli for a friend off my table.

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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12-08-2012 05:17 AM  5 years agoPost 24
Santiago P

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South West, Ohio

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hehe, was just stunned of the max rpm figure.

The graph is definately not showing the whole story, normaly they do.

The 4525 can easily pull 200 amp noticeable peakes, not just quick spike, and they will trigger a cutoff.

Were your batteries cold at the begining of the flight? That would also casue a power cutoff as the lipo chemistry does not work well in cold temps.

Good luck with the search.

Santiago

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12-08-2012 12:04 PM  5 years agoPost 25
esmoglo

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Florida USA

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It could have been your motor that took out the ESC… I had a Scorpion (LE) motor fail due to a bad winding causing the ESC to catch fire or can cause a shut down. Your motor looks exactly like mine did don’t discount the motor as the primary fail point ( I have seen 3 Scorpion (LE’s) go up in smoke).

Ugly can be fixed stupid is forever!

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12-08-2012 02:37 PM  5 years agoPost 26
Dr.Ben

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Richmond, VA, USA

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As CC evolves their product hardware and firmware, you are going to see more cases like this where the controller will shut down due to a motor or set up issue rather than having the controller burn itself and the model up. Kontronik has erred on this side of caution since forever; every ESC mfg should do the same.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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12-08-2012 04:44 PM  5 years agoPost 27
GyroFreak

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Orlando Florida ...28N 81W

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While a test with a good ohm meter might show dead shorts or shorts to the case, it won't show an internal winding to winding short. These motors don't have many turns on a winding so ohm readings will be very low and a single turn winding will not likely be measured, but can cause havoc with the ESC.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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12-09-2012 12:05 AM  5 years agoPost 28
Solmanbandit

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Tucson , AZ

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Were your batteries cold at the begining of the flight? That would also casue a power cutoff as the lipo chemistry does not work well in cold temps.
Day temps here have been 70's to low 80's during the day. I don't think outside temperature was an issue.

Trex 700E / Trex 500 ESP - Ikon/ HD 500 - Ikon 2/ Goblin 500 Ikon 2

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12-09-2012 12:43 AM  5 years agoPost 29
Solmanbandit

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Tucson , AZ

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I was just thinking, I am having a similar problem on my castle 100. I was having a problem where it would start up and shut down and repeat. I got that fixed. Now today, I started to fly a circuit and it shut down on me. Luckily no crash and just did an auto.

Trex 700E / Trex 500 ESP - Ikon/ HD 500 - Ikon 2/ Goblin 500 Ikon 2

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12-09-2012 03:28 AM  5 years agoPost 30
honda411

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Surprise, AZ USA

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As said by solman mentioned those are the correct temps. Batts aren't hot nor cold coming down. Just a luke warm.
The graph I provided was only what I thought was necessary.
I don't own an ohm meter so I'm out of luck there.
Something with the motor I think.
But why does it keep getting hotter and hotter every flight

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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12-09-2012 07:40 AM  5 years agoPost 31
westwindpilot

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Glendale, AZ

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Chris, I would try one of dannys backup motors and see if the same thing happens. After you fix your heli of course.

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12-10-2012 02:54 AM  5 years agoPost 32
honda411

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Surprise, AZ USA

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That's a costly maiden flight again. I can try it but may be beg of year due to holidays.

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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12-10-2012 02:59 AM  5 years agoPost 33
Solmanbandit

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Tucson , AZ

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Using one of his motors or trying to get it from him?

Trex 700E / Trex 500 ESP - Ikon/ HD 500 - Ikon 2/ Goblin 500 Ikon 2

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12-10-2012 03:27 AM  5 years agoPost 34
69maverick

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thomaston,ct

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Don"t forget
Scorpion makes a Battery Backup that in the case of a failure this don't stop you. Well the motor does but you do stand a chance to save it.Cheap insurance for 26 bucks. But to me this sounds like a bearing issue heating up and slowing it down.

Jim B.

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12-10-2012 08:54 PM  5 years agoPost 35
honda411

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Surprise, AZ USA

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69maverick: I think you are probably right. Any way to tell if a bearing is bad? And I did have control all the way down to the ground. Just the head speed died of instantly because I was in a high speed hurricane.

Solman: I may give him a call and try one. Or order new bearings if that's the case and try again.

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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12-10-2012 10:18 PM  5 years agoPost 36
Solmanbandit

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Tucson , AZ

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If you can get a spare from him, that would be worthwhile. Best of luck on that one. Either way, take the bearings out and check to see if they feel rough or notchy when you turn them. It is hard to tell while in the motor because you are working against the magnets. Also ordering a set of bearings would be a good thing to do regardless.

Trex 700E / Trex 500 ESP - Ikon/ HD 500 - Ikon 2/ Goblin 500 Ikon 2

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12-11-2012 12:45 AM  5 years agoPost 37
mattox

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Phoenix,AZ-usa

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Just let me know what size

MingDa helicopters,Scorpion US Power pack/Haiyin/Astroid designs

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12-11-2012 02:58 AM  5 years agoPost 38
69maverick

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thomaston,ct

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Not really
Once you take them out you can tell but like Sol.... said in the case is hard to know. How often do you oil the bearings and do a general motor breakdown to check for failures.

Jim B.

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12-11-2012 03:33 AM  5 years agoPost 39
honda411

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Surprise, AZ USA

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69maverick: I have never oiled or broke the motor down. How often do you need to? Oil and tear apart?
Is kde any better?

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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12-11-2012 03:45 AM  5 years agoPost 40
69maverick

rrApprentice

thomaston,ct

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Scorpion recomends
I think Scorpion says oil the bearings 6 to 8 flights I do it about 10. I pull it apart about every 40 or 50 flights and feel the bearings and clean and re oil them or replace them. Check this video out and once you see this one look at the ones for changing bearings. You can pick up a press at Harbor tools for 35 bucks.

Watch at YouTube

Jim B.

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HomeAircraftHelicopterHelicopter Main Discussion › Castle 120 shut down causing crash UPDATE!
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