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nzflyer
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 Posted: Mon 26. Oct 2015 7:02:25 |
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Joined: Sun 04. Oct 2015 9:55:42
Posts: 33
Location: Christchurch New Zealand
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Hi still having a tail wag. But it only wags when i start to pitch up. Doesn't matter if it is hard or soft pitch up. I have tried most things,
Rudder delay is in zero. Pitch consistency is 170. I have tried rudder delay higer with no luck. Using a kds 690tail servo brushless.
Speed: 0.039sec/60°@8.4V
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Last edited by nzflyer on Wed 28. Oct 2015 11:13:58, edited 1 time in total.
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Gtamas
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Posted: Mon 26. Oct 2015 14:53:15 |
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Joined: Tue 17. Mar 2015 22:07:02
Posts: 107
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HI!
On trex 700 with RJX tail servo with 0,03 sec/60 i had the same issue. Try piro consistency 190-200. your tail servo is fast enough. You may need to decrease the tail gain a bit to do this. if the issue is still there, then the gov gain is very high. i have my governor gain with align 750MX castle 120A at 6 or 7. rpm is 1950.
And bump the tail refres rate to the max your servo is capable. ( mine is 1520us 333hz, and the holding is good)
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icare
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Posted: Mon 26. Oct 2015 16:18:57 |
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Joined: Sun 14. Jun 2015 7:35:03
Posts: 35
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Rjx standard tail servo frequency is 760 µs 333hz
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Logo 600 sx spirit, Diabolo 700 spirit pro, Jeti DS 14.
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Gtamas
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Posted: Mon 26. Oct 2015 21:30:35 |
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Joined: Tue 17. Mar 2015 22:07:02
Posts: 107
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yes, there is a typo, cyclics are 1520 333hz, tail is 760 333hz. In this case this is irrelevant.
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nzflyer
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Posted: Tue 27. Oct 2015 1:13:57 |
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Joined: Sun 04. Oct 2015 9:55:42
Posts: 33
Location: Christchurch New Zealand
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Spec for tail servo say 720us 560hz, shall i try 333hz
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nzflyer
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Posted: Tue 27. Oct 2015 1:14:32 |
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Joined: Sun 04. Oct 2015 9:55:42
Posts: 33
Location: Christchurch New Zealand
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Typo 760us
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Gtamas
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Posted: Tue 27. Oct 2015 10:34:09 |
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Joined: Tue 17. Mar 2015 22:07:02
Posts: 107
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No, leave it at 560hz, but try to increase the piro consistency, it's the "I" gain in other systems, it is also known as heading hold gain.
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ZeXx86
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Posted: Tue 27. Oct 2015 11:58:40 |
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Joined: Mon 29. Apr 2013 16:06:44
Posts: 12442
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Hi,
can you tell me how you have configured mechanical tail center position?
Can you share your settings, please? You can attach 4DS file here.
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Spirit System developer
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nzflyer
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Posted: Wed 28. Oct 2015 11:15:43 |
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Joined: Sun 04. Oct 2015 9:55:42
Posts: 33
Location: Christchurch New Zealand
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Have solved the problem i think. Gov gain was to high. Will do some more testing in next couple of days.
Thanks people for ya input
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ZeXx86
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Posted: Fri 30. Oct 2015 8:19:56 |
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Joined: Mon 29. Apr 2013 16:06:44
Posts: 12442
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Perfect, thank you very much for the info!
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Spirit System developer
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