FeiYu Tech FY-DOS - Manual (Page 11)

Guilin Feiyu Electronic Technology Co., Ltd
Guilin Feiyu Electronic Technology Co., Ltd http://www.feiyudz.cn E-mail: [email protected] Page 11
 Control parameters adjustment
 RC Sensitivity
RC Sensitivity determine the reaction speed of attitude from command stick, the
bigger the value the quicker the reaction. Increase it for sharper and quicker leveling
action after command stick released. Unstable shaking flying and the control feeling will
be stiffness and rigid if the value is too high; and sluggish leveling action and slow braking
if too small.
 Control Gain
Control gain use for stabilizing the flight attitude. To the gains of Pitch and Roll, if
you release the Pitch or Roll stick after command stick, multi-rotor should be back to
hovering state.
Control P: If the reaction of multi-rotor in this procedure is too soft (large delay),
please increase the basic gain slowly (10%-15% each time)until vibration emerges
after you release the stick. Then decrease the gain a little until vibration just disappears.
Now the gain is perfect.
Control I: This value generally do not need to adjust
 Course control gain adjustment
The way of tuning the Yaw gain is the same as the way of adjusting the Tail Gyro. If
you want fast stick reaction speed, increase the gain, otherwise decrease the gain. However,
the spin of multi-rotor is produced by the counter torque force, and the magnitude of
which is limited. Therefore, large gain will not produce tail vibration like helicopter, but
severe reaction at the start or stop of motors, which will affect the stabilization of the other
directions.
 Vertical control Gain
Vertical control Gain is used for fixed altitude flight Mode.
Control P: You use two methods to judge if the Vertical gain is good enough: 1) The
multi-rotor can lock the altitude when the throttle stick is at center position; 2) The
change of altitude is small during the flight along a route. You can increase the gain
slowly (10% each time) until the vibration emerges along the vertical direction or the
reaction of throttle stick is too sensitive, then decrease 20% of the gain. Now it is a
suitable Vertical gain.
Control I: This value generally do not need to adjust.
Note: We reserve the right to change this manual at any time! And the newest edition
will be shown on our website.
-----END-------