FeiYu Tech FY-41AP - Manual (Page 24)

Guilin Feiyu Electronic Technology Co., Ltd
Guilin Feiyu Electronic Technology Co., Ltd http://www.feiyudz.cn [email protected]
- 24 -
Control parameters adjustment
 RC Sensitivity
RC Sensitivity determines the reaction speed of attitude from the command (the bigger the
value the quicker the reaction). Increase it for sharper and quicker leveling action after the
command stick is released. Unstable shaky flying and a control feeling of stiffness and rigidness
will result if the value is too high; and sluggish leveling action and slow braking if it‘s too small.
 Control Gain
Control gain used for stabilizing the flight attitude (correlated to the severity of the Pitch
and Roll stick). If you release the Pitch or Roll stick after giving commands, the 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
should be perfect.
Control I:This value generally does not need adjustment.
 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, a large gain will not produce tail vibration like a helicopter, but instead have a 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 hovering Mode.
Control P: You use two methods to judge if the Vertical gain is good enough: 1) If the
multi-rotor can lock the altitude when the throttle stick is at center position; 2) If 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 does not need adjustment.
 Navigation control Gain
Navigation control Gain controls the parameters use for control hovering point.
Control P: please increase the basic gain slowly (2-3 each time)until the vibration emerges
in the hovering point. Then decrease the gain a little until vibration just disappears. Now the
gain is perfect.
Control I:This value generally does not need adjustment.