dji MATRICE 3D Series - Page 78

DJI Dock 2/Matrice 3D Series Unmanned Aircraft Flight Manual
78
©
2024 DJI All Rights Reserved.
Loss of Control Signal
The signal lost action can be set in DJI FlightHub 2:
• In Live Flight Control: Open the device status window, click Flight Settings > On Signal Lost to
set the signal lost action to Return to Home, Hover, or Continue.
• In Flight Route Task: Open the Task Plan Library, and click Create Plan to set the signal lost
action during a ight route task to Return to Home or Continue Task.
When the signal lost action is set to RTH, the GNSS signal is strong, the Home Point was
successfully recorded, and the compass is functioning normally, RTH automatically activates
after the control signal is lost for six seconds or above.
When the lighting is sucient and the vision system is working normally, DJI FlightHub 2 will
display the RTH path that was generated by the aircraft before the control signal was lost and
return to home using Advanced RTH according to the RTH settings. The aircraft will remain in
RTH even if the control signal is restored. DJI FlightHub 2 will update the RTH path accordingly.
When the lighting is insucient and the vision system is not available, the aircraft will perform
the Original Route RTH procedure. The aircraft will enter or remain in Preset RTH path if the
signal is restored during RTH. The Original Route RTH procedure is as follows:
1. The aircraft brakes and hovers in place.
2. When RTH begins:
• If the RTH distance (the horizontal distance between the aircraft and the Home Point) is
farther than 50 m, the aircraft adjusts its orientation and ies backward for 50 m on its
original ight route before entering Preset RTH path.
• If the RTH distance is farther than 5 m but less than 50 m, it adjusts its orientation and
ies to the Home Point in a straight line at the current altitude.
• The aircraft lands immediately if it is less than 5 m from the Home Point when RTH
begins.
3. The aircraft lands and the motors stop after reaching the Home Point.
• The aircraft may not be able to return to the Home Point normally if the GNSS signal
is weak or unavailable. The aircraft may enter ATTI mode if the GNSS signal becomes
weak or unavailable after RTH is triggered by loss of control signal, and the aircraft will
hover in place for a while before landing.
• It is important to set a suitable RTH altitude before each ight. Set the RTH altitude in
the device status window or in Task Plan Library in DJI FlightHub 2.
• When the lighting is insufficient and the environment is not suitable for the vision
system, the aircraft cannot avoid obstacles during RTH.
• The aircraft may not be able to return to the Home Point when the wind speed is too
high. Fly with caution.
• RTH cannot be triggered when the aircraft is landing.
• Be aware of small or ne objects such as tree branches or power lines or transparent
objects such as water or glass during RTH. In an emergency, cancel RTH and control
the aircraft manually using DJI FlightHub 2.