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10. Safety Devices
The "Power Drone XL" quadrocopter has a range of safety devices in the transmitter and flight model which
protect the model from damage and/or should reduce possible damage to a minimum. The protection
mechanisms are identified by LED indicators (model) or an acoustic and visual warning signal (transmitter).
a) Transmitter
The battery condition is continually inspected while the transmitter is in operation. If the voltage level of the batteries
drops below a certain value, the transmitter will signal this with an intermittent warning sound and permanent flash
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ing of the LED at the transmitter (figure 4, item 2). In this case, stop flying at once and replace the batteries of the
transmitter.
b) Model
The LEDs in the quadrocopter show if the transmitter is "bound" to the model and reception of the transmitter signal
is proper. This is displayed by permanently lit LEDs. When the rear LEDs in the model flash quickly, the quadrocopter
does not correctly receive the transmitter signal. In this case, "binding" must be performed again, see chapter 12. a).
The quadrotor helicopter constantly monitors the voltage of the connected battery. Should this fall below a critical level
during a particular period, this will be indicated by the flashing LEDs.
If the voltage undercut is permanently below a specific value, an emergency landing is initiated after a brief time and
the motors are switched off.
If the undervoltage is displayed at the quadrocopter by flashing of all LEDs, only approx. twenty seconds
of flight time remain to independently return the model to the starting point and land it. When a specific
voltage value of the flight battery is undercut, the quadrocopter will start to land automatically. For this, the
robot revolutions are continually reduced. Speed cannot be increased anymore during this process in order
to protect the rechargeable battery from harmful deep discharge.
If the model is above a body of water, tree, house, street, persons, animals, etc. at the time and/or if the
model is flying at a higher altitude, the model may be damaged or lost and there may be property damage
and injury to persons/animals nearby.
Summary of Contents for Power Drone XL
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