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  • I'm completely stumped

    Hi all,
    I wasn't sure whether to put this post in Vbar, Kontronik, Logo, or Synergy sub forum, sorry.
    I've been having major trouble with my 2 helis and don't know where to look next!! Please bear with me, as I'm going to try to give as much info as poss haha

    First the Synergy E5 (TT tail): had a "loose" tail wag, which I got rid of with higher H/S, but then got a quicker wag. Set gyro control to Tx and decreased gain until it kind of stopped, but not great, any lower and the tail would not hold well at all. Before I could sort this problem, the heli kept shutting down and dropping out of the sky?? At first I thought it was LV cutoff, so set the ESC (castle ice2 80 HV) to 2v/cell. Tried it out again, same result, shutdown and resulting prang. To cut a long story short, out of 5 flights since I bought it(S/H), it's dropped out the sky 4 times, repair costs mounting now lol. I had a look at the esc log and on the last flight, H/S was 2100 min - 2400 max, max amp draw was 92.1A and temp was 78 deg, so well within the esc power capabilities. I have been told by Castle creations tech help that I should be running a 120A esc with the scorpion motor??, but they would hahaha. Just FYI, I am running this on on esc governor, although tried with it off and same power loss problem.
    The last shut down I was doing a roll, got 2/3rds of the way round and blades pretty much stopped, no blades, no chance of control!!

    Second is the logo: This was flying fine, apart from a fairly violent tail wag when coming out of a flip( mainly back flips), I could live with it, but a pain all the same. I tried doing the same as the synergy (Tx gyro control) and tail holds fine, but for aforementioned wag. Now it seems to have developed a similar problem to the Synergy, in that it has lost power 3 times in the last 6 lipos??? Aha, thought I, it must be the radio, so I've bound it to my mates Tx (also Dx8) and it seems to be fine with barrel rolls, slow flips,piros etc, etc. but wierdly, the last 2 occassions it has lost power, I've been holding it inverted for a minute or 2, flipped her back (tail thwap ensues) followed shortly after(not immediately) by the shutdown??? the wierd thing is, unlike the synergy, it has (luckily) spooled back up and I've managed to save it to land straight away!! Could this be the Vbar shutting things down, due to severe vibration?? Pardon my ignorance, but I've not had one before this, sorry!
    I must add that the tail thing has only started after a total loss of power, caused by tone/vibrate set on Dx8(apparently a no no when using Vbar, see manual lol). I rebuilt it, new tail boom and struts, main and feather shaft, main and tail blades etc and have since checked bearings for play and no loose screws etc?? I had done at least 30 flights since the rebuild with the odd flip tail wag, but no shut downs?? It will do an inverted rainbow with no wag??
    The only common denominators now, are both have Vbars?? Logo with2 dsm2 sats and Synergy with 2 dsmx sats?? Any other Ideas please , I'm completely stumped (not too hard), but I'm getting kind of fed up with the repair bills and have nowt else to fly .


    logo 21-07-13.pdf

    Cheers.
    Last edited by pug907; 22-07-2013, 07:00 AM.
    Andy
    Logo 600 SX
    TT E700
    Synergy 516
    Vcontrol



    sigpic

  • #2
    I find the vbars finickly when it comes to vibes, i got low vibes on my 500 yet i had similiar
    Problem to you, i attached vbar with zeal tape and cable tie it down. Since then i have not had a
    Shut down in mid flight, happened only once to me. Vibes are extremely low now. Its worth
    A try mate as its a cheap solution.. i think vbar become less tolerent of vibes the older they get
    Especially if they have been in hard smack.
    Current Fleet,
    T-Rex 500 Pro: Demon 3SX, Revolution/Rail, Blades, DS510M, DSDS655, CC BEC Pro,
    Goblin 500: Vortex VX1n, DS510M, DS655, Talon, Scorpion backup guard, Revolution 520 Blades.
    Phoniex Sim, DX9, PL8 charger, Fusion 600watt PSU


    sigpic

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    • #3
      Hi Andy,Sorry to hear your not having much luck of late and the only advice I can sugest to solve your vibe issue is to check your bearings as you say have had up to 5 crashes now, that is going to have some sort of impact on your vital head and tail bearings. Check your thrust bearings are lubericated as well with grease. Richie
      RickGaui 425 - Stretched to 550 - now FBLGaui Stock 850kv Motor Geared 14T/42F/19OWB/61M/14Tail 2000 approx HS3 x Spektrum DS821's Cyclic1 x Hyperion DS20-GFD TailHobbyKing (Tarot) ZYX-S FBL Controller (When it Arrives)DX6i

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      • #4
        I'm completely stumped

        Hope you mend soon.
        Glad u were kitted out or it may hav been worse.
        1x EGS, TREX 450 PRO DFC & 130X. DX9 radio. No idea what i am doing trying to fly

        Comment


        • #5
          Quote:
          ESC (castle ice2 80 HV).......l max amp draw was 92.1A

          Just checked on the Castle Creation tech info for this ESC and they show it's max amps as 80a (with a 5mph airflow over the ESC), so isn't the 92a a bit too much for this ESC ?

          PK
          Trex 250, Blade mSR
          TREX 250 cf blades GP750
          Interceptor 400, HK 450, Flasher 450 CF
          TREX 450 SPORT cf blades GP750
          Raptor 30 - Raptor 50 Titan

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          • #6
            Originally posted by pk-surfing View Post
            Quote:
            ESC (castle ice2 80 HV).......l max amp draw was 92.1A

            Just checked on the Castle Creation tech info for this ESC and they show it's max amps as 80a (with a 5mph airflow over the ESC), so isn't the 92a a bit too much for this ESC ?

            PK
            Figures I have are 140A short burst?? But point taken. Why am I having the same trouble with kontronik on the logo?? That's what's really bugging me.
            Cheers for looking into it anyway.
            Andy
            Logo 600 SX
            TT E700
            Synergy 516
            Vcontrol



            sigpic

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            • #7
              Originally posted by trexamanic View Post
              Hope you mend soon.
              Glad u were kitted out or it may hav been worse.
              i would have been a real low down bum hahaha.
              Andy
              Logo 600 SX
              TT E700
              Synergy 516
              Vcontrol



              sigpic

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              • #8
                If you still have the logs from the castle Ice (and assuming you had the ripple enabled) have a look at the values for ripple and voltage (also look at the throttle values because you should have a flat throttle input and you'll see if the VBar is just shutting the throttle down for some reason). I ran a Scorpion 4025/1100 on 6s using a Castle Ice 100 LV and never had a low voltage shutoff or any real issues. But you can exceed 92 amps quite easily on 6s.

                I have had an Ice 120HV go into low power mode due to me accidentally leaving a completely bogus setting in the cells / voltage settings but it still only went into a low power mode temporarily and recovered and I was able to land. You should have it set not to just shut off completely if it hits the low voltage threshold.

                It's really weird you'd have a similar issue with two totally different ESCs. I don't suppose you're flying over an ancient Indian burial ground?
                Last edited by trillian; 22-07-2013, 03:03 PM.
                Kasama, Minicopter, Henseleit, JR, Shape, Beam
                Robbe, RMJ Raptor gasser, powered by
                Spartan, Spirit, BeastX, Kontronik, CY Total-G, DX8

                member of Epsom Downs and Bloobird clubs
                Proud recipient of 7 EGS! and a platinum star

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                • #9
                  Originally posted by trillian View Post

                  It's really weird you'd have a similar issue with two totally different ESCs. I don't suppose you're flying over an ancient Indian burial ground?
                  Now you mention it, the part of the field we fly in is about 20 foot higher than the rest. I'll take a spade with me next time, I can then either dig for indian evidence, or smoosh the helis if they continue to wind me up hahahaha!!
                  I've just checked the ripple values and they are: min 0.0v, avg 0.45v, max 1.74v. min volts is 19.9 and max is 24,5! I have soft cut off set at 2v/cell, as I prefer to use my timer. My packs generally have between 30% and 38% left when I land, but the last 2 shutdown packs had 50+% left!!
                  At 1904 seconds, the graph just stops? I cleared log memory before I fitted it to the E5, so, should have all 5 flights on there really.

                  Just had a long chat to Ross (gashead) and he has set me on the right path to sorting the logo. I've, unknowingly, been running gov on kontronik and too high a throttle curve DUHHHHH!! Sorry, but not only am I a bit thick, I'm fairly new to these things too hahaha!
                  Andy
                  Logo 600 SX
                  TT E700
                  Synergy 516
                  Vcontrol



                  sigpic

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                  • #10
                    I think the main problem with the logo and the kontronik esc is that a 13t pinion is being used and governed throttle of 100% is not good on the kontronik esc, so if a 15t or 16t was used it should bring the T/C down to around the mid 60's or very low 70's which should then stop the esc cutting out, but cant help with the other esc as never used it before.
                    Troll buster
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                    • #11
                      I'm completely stumped

                      [QUOTE=gashead;1042922...., but cant help with the other esc as never used it before.[/QUOTE]

                      Pug907 - can you post your castle config? I wouldn't claim to be an expert, but somebody else might spot something??
                      Tom
                      sigpic Synergy E7SE - Kontronic Helijive 120+ ESC, vBar Neo
                      SAB Goblin 630 Competition
                      - Castle Edge 120HV, vBar Neo
                      Blade 700X - Castle Edge 160HV ESC, Mini vBar
                      Logo 550SXv2 - Castle 130LV ESC, vBar Neo
                      .... and a Gaui X3
                      Spektrum DX8 ; Mikado VBC ; RealFlight 7 & neXt sims
                      ... and two EGS'



                      Comment


                      • #12
                        Originally posted by tomatwalden View Post
                        Pug907 - can you post your castle config? I wouldn't claim to be an expert, but somebody else might spot something??
                        I did try earlier, but it said invalid file ext or summink like that. I'll try again Nope, will have to post as image, so split it down to 2 to unclutter things.. I hope someone can make head or tail of it, I don't see a lot wrong, but then it prolly helps to know what you're looking at lmao!!

                        synergy motor cutout flights 1.jpgsynergy motor cutout flights 2.jpg

                        Cheers,
                        Last edited by pug907; 22-07-2013, 11:17 PM. Reason: funny font.
                        Andy
                        Logo 600 SX
                        TT E700
                        Synergy 516
                        Vcontrol



                        sigpic

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                        • #13
                          I'm completely stumped

                          Try renaming the file from "whatever.dat" to "whatever.txt" then try to upload it.
                          Tom
                          sigpic Synergy E7SE - Kontronic Helijive 120+ ESC, vBar Neo
                          SAB Goblin 630 Competition
                          - Castle Edge 120HV, vBar Neo
                          Blade 700X - Castle Edge 160HV ESC, Mini vBar
                          Logo 550SXv2 - Castle 130LV ESC, vBar Neo
                          .... and a Gaui X3
                          Spektrum DX8 ; Mikado VBC ; RealFlight 7 & neXt sims
                          ... and two EGS'



                          Comment


                          • #14
                            I'm completely stumped

                            Pug907, those are the logs, I meant the config ?
                            Tom
                            sigpic Synergy E7SE - Kontronic Helijive 120+ ESC, vBar Neo
                            SAB Goblin 630 Competition
                            - Castle Edge 120HV, vBar Neo
                            Blade 700X - Castle Edge 160HV ESC, Mini vBar
                            Logo 550SXv2 - Castle 130LV ESC, vBar Neo
                            .... and a Gaui X3
                            Spektrum DX8 ; Mikado VBC ; RealFlight 7 & neXt sims
                            ... and two EGS'



                            Comment


                            • #15
                              Originally posted by tomatwalden View Post
                              Pug907, those are the logs, I meant the config ?
                              Thanks Tom, my bad. It's not easy being a numbnut you know, hahaha!
                              I'll get them up this evening, work beckons.
                              Cheers, Andy.
                              Andy
                              Logo 600 SX
                              TT E700
                              Synergy 516
                              Vcontrol



                              sigpic

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