Hi everyone,
Got into problem with my pixhawk and cannot find what happened.
Problem is that on take of seems like ESC descalibrating and motor starts to spin different speeds, drones likely will overturn so i need to cut emergency motor stop...
I did mane things like:
1) everything wired correctly for sure, as it was working fine, i do changed bearing for one T-motor U5 (it is very unlikely but it happened next day...) and next day went to film and was unable to take off.
2) recalibrated esc lot of times, everything went ok on small speeds with propellers or full speed without them everything spinning as must, until i do restart and try to take off
3) same problem on stabile, alt hold, pos hold modes.
4) i do even changed esc from simon-k to hobby wings x-roto pro, to be sure everything is compatible.
now passed 2 weeks, i desoldered everything from scratch everything checked but no luck...
5) updated firmware to last one, nothing changed..
Hardware & Software:
Brain - Pixhawk with Arducopter 3.3.1
ESC - Hobbywings X Rotor Pro 40A
Motors - U5 with 15" propellers
Everything was working just fine, until one morning above happened.
Hope anyone will have some ideas?
Dainius
Replies
Sadly it was not a problem, as still remain open case, anyone have an ideas... ?
The XRotor Pro 40A are AWESOME escs but you still need to calibrate them to your radio's endpoints.
http://copter.ardupilot.com/wiki/esc-calibration/
https://www.youtube.com/watch?v=Hl-Q7RPOn18
and finally from hobbywing
http://www.hobbywingdirect.com/collections/xrotor-user-manual
I did calibration lot of times, after calibrating them everything is ok, they start to spin all at once, but reaching take off point seems like they loosing calibration, or something similar i cannot find what happening.
I bought these esc as thought maybe something wrong with RCI 40 OPTO Simon ESC but problem remained after Hobbywing where installed.
Seems like found problem, after bearings of U5 change lot of vibrations occurred...