@ FerdinandK I am really sorry but the waight is 6,55 kg and i have only original product from DJI so if this is the reason no s800 with zenmuse and retraceable and video transmishen could fly forward without decending and it was + 4,5° not even under frozen point. In my oppinion the IMU has to be changed...
DJI S800 Zenmuse & wookongM experience + Power Problems?
- Thread starter q8khajah
- Start date
BorisS
Drone Enthusiast
Hi ferdinand,
If it only would be toni who is having this issue than i would be on the same track as you q8khajah who started the thread, although tested it in manual and than he is not having the issues. That the "powerloss" only happens in attitude mode and not in GPS mode one could argument that leveling needs extra power compared to mannual, but i dont think this plays a role in this case. Zu kleiner tropfen das deswegen das Glass übergeht oder ?
Boris
If it only would be toni who is having this issue than i would be on the same track as you q8khajah who started the thread, although tested it in manual and than he is not having the issues. That the "powerloss" only happens in attitude mode and not in GPS mode one could argument that leveling needs extra power compared to mannual, but i dont think this plays a role in this case. Zu kleiner tropfen das deswegen das Glass übergeht oder ?
Boris
I dont think temperature is the problem since im experiencing similar problem and its about 25C here. But i did notice stabilization improvement when i gradually take off weight
My problem was experienced during attitude mode AND gps mode. I expected the autopilot to detect the descent and adds power instead of me compensating
Sent from my Nexus 4 using Tapatalk 2
My problem was experienced during attitude mode AND gps mode. I expected the autopilot to detect the descent and adds power instead of me compensating
Sent from my Nexus 4 using Tapatalk 2
Last edited by a moderator:
FerdinandK
Member
@Boris
I manual mode you have more throttle available. When I made my payload-tests with my S800 I could not lift off in Atti (or GPS-Atti) it did not even move, only in manual I could leave the ground (for some seconds):
(13,1kg AUW)
https://vimeo.com/45913693
I also tried with 6kg payload (11,1kg AUW), with atti-mode, no chance to lift off, with manual mode it works.
@Marown
I am sorry for my posting, I did not know, that you already solved your problem.
@q8khajah
What AUW do you fly? I am sure if you try a new battery-pack you will be fine.
best regards
Ferdinand
I manual mode you have more throttle available. When I made my payload-tests with my S800 I could not lift off in Atti (or GPS-Atti) it did not even move, only in manual I could leave the ground (for some seconds):
(13,1kg AUW)
https://vimeo.com/45913693
I also tried with 6kg payload (11,1kg AUW), with atti-mode, no chance to lift off, with manual mode it works.
@Marown
I am sorry for my posting, I did not know, that you already solved your problem.
@q8khajah
What AUW do you fly? I am sure if you try a new battery-pack you will be fine.
best regards
Ferdinand
redridinghood
Member
Marown since the S800 loses height when moving forward and not stationary try a test. Place a piece of open cell foam in front of the IMU sensor hole and cover the S800 top and side openings with some saran or nylon wrap.
redridinghood
Member
There is an idea floating around that the holes on the top plate and the placement of the electronics create wind buffeting on some setups. Covering the holes and attitude sensor may help.
This is how i mounted everything:
http://www.aprock.at/s800/Foto(13).JPG
I hope you can see it.
But if there is a problem with this why DJI dont make a recomendet positioning plan for the s800???
I will get an new WKM the next day from my dealer i changed it i still belive this is the Problem.
Thanks for your help!
Maybe you can send me how you placed things in the s800?
best regard marown
http://www.aprock.at/s800/Foto(13).JPG
I hope you can see it.
But if there is a problem with this why DJI dont make a recomendet positioning plan for the s800???
I will get an new WKM the next day from my dealer i changed it i still belive this is the Problem.
Thanks for your help!
Maybe you can send me how you placed things in the s800?
best regard marown
Marown,
my mounting is very similar to yours, in fact even though I have extensive experience with Pod/Boom helicopters, I followed instructional videos posted on youtube by the USA DJI Agent (tag name iflydji) in every step.
I also have a strong feeling that our IMU's have a problem. the power is available, the weight is managable. the IMU is supposed to sense the errors and the MC is supposed to send corrective outputs to the ESCs. somehow, in my case at least, the Load is causing the copter to descend when in forward flight or other movements , the MC is NOT sending corrective responses properly.
Marown, if you are installing a new IMU, please kindly share your results. I'd like to know where I should be heading in solving this issue..
my mounting is very similar to yours, in fact even though I have extensive experience with Pod/Boom helicopters, I followed instructional videos posted on youtube by the USA DJI Agent (tag name iflydji) in every step.
I also have a strong feeling that our IMU's have a problem. the power is available, the weight is managable. the IMU is supposed to sense the errors and the MC is supposed to send corrective outputs to the ESCs. somehow, in my case at least, the Load is causing the copter to descend when in forward flight or other movements , the MC is NOT sending corrective responses properly.
Marown, if you are installing a new IMU, please kindly share your results. I'd like to know where I should be heading in solving this issue..
Good Newa Guys!
I got a new WKM and it is mutch better now!
It still decends on fast flights but the s800 is now correcting the hight after it drops a few meters!
I will now cover the IMU Attitude hole with some Foam i think then it will be mutch better too!
Try it at first with foam and if it doesnt work speak to you dealer to get a new WKM instead of your old one!
Hope i could help you!
Here the two WKM in compare:
OLD WKM:
http://www.youtube.com/watch?v=_SrdU6F3vN0
NEW WKM:
http://www.youtube.com/watch?v=HzGB6bp1yXg
Marown
I got a new WKM and it is mutch better now!
It still decends on fast flights but the s800 is now correcting the hight after it drops a few meters!
I will now cover the IMU Attitude hole with some Foam i think then it will be mutch better too!
Try it at first with foam and if it doesnt work speak to you dealer to get a new WKM instead of your old one!
Hope i could help you!
Here the two WKM in compare:
OLD WKM:
http://www.youtube.com/watch?v=_SrdU6F3vN0
NEW WKM:
http://www.youtube.com/watch?v=HzGB6bp1yXg
Marown
That sounds great. Glad u got part of the problem fixed.
Guys i dont know if this is related or not but i just hooked up the wookong with the PC and there's an update. The update had a message about fixing the issue of motors slowing down then speeding up. My guess is that they're talking about our descending problem..
Sent from my Nexus 4 using Tapatalk 2
Guys i dont know if this is related or not but i just hooked up the wookong with the PC and there's an update. The update had a message about fixing the issue of motors slowing down then speeding up. My guess is that they're talking about our descending problem..
Sent from my Nexus 4 using Tapatalk 2
hjls3
Member
I seem to be having this problem with 5.16 - the problem...Just below 50% throttle upon decent - the motors are pulsing and the bird is dropping like it does not have enough lift. I give it power and recover but coming down is rather nerve racking. I have exactly 3 days flying this setup. Today, I paid careful attention to the lights. I did get the 3 white flashes. SHould I be looking to updating to 5.20? Thanks for the help. I am new to the WKM and the S800.
FYI I did wait for green lights and no red before take off. While I am at it - having trouble with the Z15 horizon being level, eventually it gets there but it takes alot of time. Maybe 5.20 solves all? SHould I try 5.20?
FYI I did wait for green lights and no red before take off. While I am at it - having trouble with the Z15 horizon being level, eventually it gets there but it takes alot of time. Maybe 5.20 solves all? SHould I try 5.20?
aerovantage
Member
Wow.. that is very similar to what im experiencing ...
This is my thread http://www.multirotorforums.com/showthread.php?10543-Help!-No-power-on-my-S800
Still trying to solve the problem. It is frustrating
This is my thread http://www.multirotorforums.com/showthread.php?10543-Help!-No-power-on-my-S800
Still trying to solve the problem. It is frustrating
aerovantage
Member
Any reason for separate battery and not connecting via the bi-port cable?
Definitely Zenmuse is not for professional use , just advanced hobbytist ... take a look at the smoothness of that Movi (brushsless cinestar ) .. there is a big difference with the ROBOTIC movements of the Zenmuse . Any crane controller have a damping , ramp or whatever you call it for adjust the smoothness at the end of the movement , even the other stabilizations systems ( mikrokopter , overfly , skyline , radian ) have it but not The Zenmuse
DJI ¿ WHAT ARE YOU WAITING FOR IMPLEMENT THIS DAMPING TO THE ZENMUSE SOFTWARE ?
it's really frustrating when you're trying to make a smooth recording, each time you move the stick to control the Zen the result is very robotic , very hard, no matter the setting of your transmiter or softness of your stick movement , and even worse with pan movement in fpv mode
View attachment 10980
DJI ¿ WHAT ARE YOU WAITING FOR IMPLEMENT THIS DAMPING TO THE ZENMUSE SOFTWARE ?
it's really frustrating when you're trying to make a smooth recording, each time you move the stick to control the Zen the result is very robotic , very hard, no matter the setting of your transmiter or softness of your stick movement , and even worse with pan movement in fpv mode
View attachment 10980
