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Post by jesses151 on Dec 22, 2011 14:09:19 GMT -4
I recently finished my Chaos 600E build and have a few minor issues. First I was wondering if anyone else has experienced any problems with the gyro/tail servo that comes with the combo kit? The problem is intermittant, but when I plug my battery into the esc and bec the normal stuff happens with the esc and RX and the gyro appears to initialize how the manual says but the tail servo doesn't respond to any inputs. I've found that when this occures if I unplug and replug the servo into the gyro it will work or if I do the same at the RX with the gyro plug it usually will work. It seems like this will happen every couple of times that I plug the battery in. When I get the system to come on properly every thing works great, hovers nice and straight. I'm just a little leary of the whole system working good long term and if this chasis goes into a fuselage that will be a pain to unplug every thing every time I fly. Secondly, does anyone know how to or is it even possible to program the ESC to a soft start? It sure would be nice to have a little easier start up for those big blades. Thanks in advance... -Jesse
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Post by chumley on Dec 22, 2011 15:04:44 GMT -4
Which version gyro do you have? I know there were some problems with the earlier gyro. My tail servo went out - tail wouldn't hold for very long. It turned out to be a loose wire in the servo and looking at RC Groups, there have been many other servo failures. Check which version gyro you have and then you might want to take your tail servo apart and check all the connections. You will need to go over all these parts one at a time to determine the issue.
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Post by jesses151 on Dec 22, 2011 15:13:20 GMT -4
The gyro only has gt9 on it. Cant find a version # anywhere. If I crack the servo open will it be obvious what connection is bad?
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Post by jesses151 on Dec 22, 2011 15:59:35 GMT -4
Took the servo apart. Nothing seemed loose. I did narrow it down though,I think.... when the problem happened again I unplugged the servo from the gyro and replugged with no responce. Then I unplugged and replugged the gyro from the rx and the tail worked. Also had the gyro lock up on me to where the only light that came on was tha r5 light. Might have beeen in config mode.. dont know. Anyone know how to fix these gyros??? I tried calling Cliff at RCA but can' t get ahold of him. -Jesse
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Post by chumley on Dec 22, 2011 16:39:07 GMT -4
Took the servo apart. Nothing seemed loose. I did narrow it down though,I think.... when the problem happened again I unplugged the servo from the gyro and replugged with no responce. Then I unplugged and replugged the gyro from the rx and the tail worked. Also had the gyro lock up on me to where the only light that came on was tha r5 light. Might have beeen in config mode.. dont know. Anyone know how to fix these gyros??? I tried calling Cliff at RCA but can' t get ahold of him. -Jesse If you still have the box that your gyro came in, I think it will show which version you have. If it's more than a few months old, it is not the current version. I don't know what the warranty is for these, but I know Cliff was offering the newest version here a few months ago for $50. chaoscrewlounge.proboards.com/index.cgi?board=specials&action=display&thread=24
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Post by Dr. Evil on Dec 22, 2011 17:38:15 GMT -4
If you can't get a hold of Cliff, ask for Robert and let him know the guys on the Lounge told you to ask for him. He should be able to help. Good luck! Let us know how everything turns out......
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Post by jesses151 on Dec 23, 2011 10:23:28 GMT -4
I talked to Robert. I really just wanted to send the gyro back for them to check out, but he insisted on just sending a new one. I tell ya they continuously amaze me. I'm so used to some of the other companies out there that I just think at some point I'll have to argue with them. Anyway as a sanity check I'm still sending this one back to let them check. Great service again. Do you guys know if there's a soft start feature on the phoenitech esc?
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Post by chumley on Dec 23, 2011 12:06:10 GMT -4
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Post by Dr. Evil on Dec 23, 2011 20:21:26 GMT -4
Please let me know if you can actually program for the soft start to work b/c I can't never get it.
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Post by Dr. Evil on Dec 23, 2011 21:08:51 GMT -4
I talked to Robert. I really just wanted to send the gyro back for them to check out, but he insisted on just sending a new one. I tell ya they continuously amaze me. Glad you got the help you needed. As far as I am concern, RCA's customer services is untouchable...period! I don't think I am being bias when I say this b/c plenty of ppl will agree.
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Post by jesses151 on Dec 27, 2011 12:12:18 GMT -4
OK rca sent me a brand new gyro and I'm getting the same issue. I'm going to get another brand of gyro from a buddy and try that tommarrow. Now this is the first time I've used a bec. Is there any possibility that theres not enough voltage to initialize the tail? Maybe I should try running w/o the bec? BTW I also could not get the soft start to enable. I'll just try multiple pitch curves in my dx7. Jesse
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Post by jesses151 on Dec 27, 2011 12:13:48 GMT -4
I mean throttle curves. ....
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Post by Dr. Evil on Dec 27, 2011 16:46:17 GMT -4
The BEC shouldn't have cause that. Sorry to hear about the gyro, hope it can be resolved. Keep us posted.
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Post by jesses151 on Dec 28, 2011 7:09:43 GMT -4
OK after unplugging the BEC and rewiring the ESC to power the RX the gyro/tail initialized every time. So I called Cliff after a short talk he mentioned that the tail servos are very touchy when it comes to the input voltage and that a tail servo may not come on if the input voltage is to low or to high. So I went back and measured to voltage from the BEC and it was 5.1 volts compared to the voltage coming from the ESC which was 5.6 volts. Also looked up the specs for my tail servo (Tower Pro MG958) and the operating voltage range was 4.8-6.0. At this point I'm thinking that maybe when I plug the heli into the battery, with all the cyclic servos and the gyro coming on, maybe there wasn't enough voltage to intialize the tail servo. (Remember this problem was intermittant) So I went into the Castle Creations BEC and changed the voltage from 5.1 to 5.6. Still didn't work....started going down in 0.1v increments...nothing. It wasn't until I went past 5.6 to 5.7~5.8 that the tail worked. So I set it for 5.8 to be safe and problem solved. Like you Dr. Evil I didn't think theat the BEC could be the issue but after basically elliminating everything else that was the only place to look. Anyway thaks for everyones help and input with this issue. And hope this will help someone else in the future if the problem ever shows up again. BTW most servos use an operating range of 4.0-6.0 volts. I think if this tail servo had that range we would have never been down this road. -Jesse
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Post by Dr. Evil on Dec 28, 2011 11:50:32 GMT -4
OMG....Jesses, first off...thanks for posting your findings but more importantly was this setup with the GT9 gyro and the stock tail servo? Because if it is, I am wondering if all the GT9 issues were actually not the gyro itself but a low voltage problem causing everyone to have problems thinking its the GT9. I say this because I know many of us is also using the CC BEC Pro including myself. Hummmmmm, certainly something to be looking into!
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