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550 Class Electric Helicopters 550 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar. |
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03-31-2012, 10:32 AM | #1 (permalink) |
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Join Date: Jan 2012
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bec pro / cc ice 100A, wiring / soldering
Hi all!
Just got my new v2 kit this week. Very surprised it was so big!! I will use a cc bec pro and a cc ice 100a mounted on each side of the frame. I'm not sure what is the best way to connect them to the battery. Do you just solder both together in one EC5 plug or make a Y-harness so you can connect them seperatly? i'm thankful for any tips, pics etc. Tom |
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03-31-2012, 10:44 AM | #2 (permalink) |
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I have the ESC supply leads on their own soldered into the EC5, but before doing that, midway along the ESC supply wires I stripped back a little insulation, soldered the BEC Pro leads to that, heat shrink covered the connection. In the supply leads to the BEC Pro I have a Deans connector, and that way I can power up the BEC Pro on its own using the 3S batts from my 450's.
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03-31-2012, 10:47 AM | #3 (permalink) |
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This worked for me: cut 3mm insulation of the ESC battery cables, solder and insulate 2 wires to an XT60 connector. Then you use the corresponding XT60 or similar on the BEC input wires. I have some 3S Lipos and plug one in if I just want the control system up for setting up etc.
Photos here: https://www.helifreak.com/showthread.php?t=384705 You can see in one of the photos where I soldered onto the ESC wires where the heatshrink is. You could solder 2 sets of wire into the EC5's as an alternative, prefered my method to reduce cable length. Post note, see ron has posted a similar reply, same solution ;-)
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04-01-2012, 03:26 AM | #4 (permalink) |
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Thanks! this seems like a good way to go
one more question ,on the ice 100a the wires are red, black and white. and on the motor 600mx the wires are red, black and blue. is red to red, black to black and white to blue the right way to connect them? Do you change the connectors on the motor or just put the same connectors on the ESC? That was two questions..... |
04-01-2012, 06:15 AM | #5 (permalink) |
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Cant remember, but the Motor is just a 3 phase device, if the cables are wrong you wont do any damge, the motor will spin backwards, in which case just swap 2 of the wires. I did this once and the one way bearing just releases and the rotors dont spool up! But think I matched the colours as far as possible. I actually changed connectors on the ESC and Motor, the important feature is to make sure they are matched from the same manufacturer for a snug fit.
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04-01-2012, 04:45 PM | #6 (permalink) |
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CyprusFlyer, are you using CC100ice ESC in Govnermode or normal end point mode? the reason i ask is that im soon to be receiving a CC 100ice + CC Pro BEC V2. Just wondering are they easy to setup? iv only ever had stock Align ESC on my 550
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04-01-2012, 05:25 PM | #7 (permalink) |
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My brand new 550e ESC (RCE-BL70G) fried on the bench, taking all servos and the 3GX with it! I'm going to be going with a dedicated BEC.
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04-01-2012, 07:45 PM | #8 (permalink) | |
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Quote:
And I don't say this to be snarky - I truly do not see, and I apologize if I am the only one...and beg your indulgence. I have omitted irrelevant wiring here, but as you've described it, you cannot feed the BEC wires unless you connect the big battery to the EC5 plug. No? **EDIT Hmm. Maybe I do see: When preparing for flight, you connect the big battery to the EC5, which energizes everything. When bench testing, you do NOT connect the big battery to the EC5...but instead separate a XT60 that would normally tie the BEC into the main system, and feed power to the BEC -- via the XT60 -- from a smaller battery. Is that it? |
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04-01-2012, 08:12 PM | #9 (permalink) |
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Join Date: Aug 2011
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According to this drawing, you'd have to power the ESC in order to power the BEC. You'd need an extra set of connectors between the ESC & BEC wires to power each up individually. The easiest way for most non-electronic oriented people to understand is just to think of the electric current as water. You'd need extra cut-off valves to separate the 2 lines. I only say this because I'm too lazy to modify your drawing!
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04-02-2012, 01:43 AM | #10 (permalink) | |
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Quote:
Digress though, the govenor mode is brilliant and couldnt be easier to set up. You have to put in the poles, gear ratio and what RPM you want (Use FIXED RPM), I have 1800, 2000 and 2150, use 2000 most of the time for my style. The software calculates and tells you what throttle% it needs to see for your RPM. I have 3 Flat line throttle curves on my TX, looking at rhe logs, it works perfectly with maybe 50-100 RPM deviance under load changes. I have programmed the Throttle Hold(TH) for 0%, therefore my routine is: Throttle Min and TH inactive, switch on and connect, ESC will not arm becouse throttle is 30% at min, Flight Mode normal. Carry to flight line, then throttle just below midpoint (slightly negative pitch) TH active, ESC arms. TH inactive - slow spool up and away we go. I have not sorted out the Autorotation bailout yet believe that TH is above 0%, (Just below ESC switch off) need to work out how to get 0% again. You may have read or worked out that head speed can be 2500 etc, the ESC calculator will give you an error, why? Because it cannot govern RPM that is not achievable as the battery voltage tapers off (Moter RPM is proportional to Battery Voltage).
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04-02-2012, 01:47 AM | #11 (permalink) | |
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04-03-2012, 06:11 AM | #12 (permalink) | |
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04-03-2012, 06:41 AM | #13 (permalink) |
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Big negative, right or wrong I am relying on the ESC not to arm!
Connect battery, my normal curve is flat line at 30%. Throttle hold is not active, my TX alarms if it is. Carry to flight line, I then have to apply TH (first time ESC sees 0%), ESC beeps then arms, flick TH off and the motor spools up. My safety is reliance on ESC not arming and having 2 positive actions to complete on the TH switch. (Tx alarm if switch wrong too). Believe this is now favoured, biggest plus is no way can you fly inverted and get caught out with a full spool down then delay, then crunchy sickening noises! (Oops should practise more autos).
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04-03-2012, 06:56 AM | #14 (permalink) |
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Ok so you have your normal mode @ 30% flat curve which = 1800rpm. So when you connect you main battery does your esc make a waring noise to say it can see throttle input of 30%? (but not arming as it need to see 0% first to arm i.e. your TH)
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04-03-2012, 07:00 AM | #15 (permalink) |
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It does beep, cannot remember the sequence but completely different from the arming sequence I get at 0%. Yes it takes some getting used to, just try it, very comfortable with it now.
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04-03-2012, 07:09 AM | #16 (permalink) |
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I Should be receiving my CC100 Ice + BEC Pro this week so i will give it a go!! i will be doing what you did which was solder XT60 connector to your Bec so you can run 3s for setup I really like that idea.
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04-03-2012, 07:20 AM | #17 (permalink) |
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Me too, will replace the 75A with the 100A although the setup is exactly the same, presume you have the USB gizmo comming too. BTW, I updated my software to the latest but rolled back one after reports of some problems with it. Waiting out for the dust to settle on that one! My Heli is not a beta testing platform.
BEC Pro I set at 6v, working fine. Flew this morning but we have the Red Arrows out here, no fly zone whilst they practise but got 6 flights in
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04-03-2012, 04:37 PM | #18 (permalink) | |
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04-03-2012, 06:13 PM | #19 (permalink) | |
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Without it you cannot fully setup the CC100A for helicopters.
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