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16. Undervoltage Warning
The quadrocopter checks the voltage of the flight battery continually in flight. The current voltage can be read in the
remote control‘s display if required (see upper illustration in figure 12). However, the voltage values are displayed with
a delay due to the data transmission.
If the voltage drops below the fixed value set ex works, the status LEDs at the quadrocopter will flash red quickly and
the quadrocopter will land automatically. The remote control will emit continuous warning sounds and the display will
show a flashing warning message. To switch off the warning messages, you need to switch the transmitter off and on
again after switching the quadrocopter off.
Even if the flight direction can still be controlled within limits during independent landing, we recommend not
to fly this long. Observe the voltage display at the flight battery and the transmitter and land in time.
17. Failsafe Function
The failsafe function protects the quadrocopter from crashing when it receives no valid remote control signal anymore.
In the assistant software, you can set how the quadrocopter is to behave if the transmitter signal fails. The automatic
flight control system in the quadrocopter can let it hover in place or return to the starting point and land there.
The failsafe function will, however, only work when GPS data are available. Otherwise, the quadrocopter can only try
to stabilise the flight position and to maintain the altitude.
For more information on the failsafe function, see the assistant software.
Содержание 1400004
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