Safety Devices; Motor Protection; Emergency Landing; Low Voltage Monitoring - Reely 450 ARF Notice D'emploi

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11.

Safety devices

The quadrotor helicopter has a range of safety devices which protect the model from damage and/or should reduce
possible damage to a minimum. The protection mechanisms are identified by LED indicators. For this, please observe
the following chapter 12 "LED displays".
a) Motor protection
The control electronics has a motor protection which immediately switches off all motors if one rotor is blocked (e.g.
after a crash). After possible damage has been checked for, the motors can be restarted using the normal control
command "starting the motors".
b) Emergency landing
If the control electronics of the quadrotor helicopter detect too great disturbances, it tries to realign the quadrotor
helicopter in a level position.
If disturbance of the receiver continues, the gas is set to a value just under hovering (without rear weight) and the
quadrotor helicopter begins its descent.
When the disturbance to the receiver is over, the model pilot can take action using their own control command and the
emergency landing programme is terminated.
c) Low voltage monitoring
The quadrotor helicopter constantly monitors the voltage of the connected battery. Should this fall below a critical level
over a particular time frame, this will be indicated by the LEDs.
In this case, the red LED flashes and the green LED will be permanently lit. This indicator can only be switched off by
disconnecting the battery.
In order to detect a low battery during flight, it is recommended that strong gas thrusts are carried out from time to time.
Should the quadrotor helicopter respond slowly and weakly, it should be landed and the battery should be checked.
Due to the performance, this test is, however, difficult to realize.
In the case of a long, uninterrupted flight operation, it is recommended to also test the LED indictors through time to
time landing.
Practical advice: To avoid damage to the quadrotor helicopter through crashing and/or due to low voltage of the
battery through total discharge, we recommend that you respect the low voltage light signals without fail. As the
integrated LEDs only flash in one direction, we also recommend installing the LiPo Saver (Order no 230327). The Lipo
Saver forewarns you of impending low voltage by light signal. Place the LiPo Saver on the appropriate place of the
quadrotor helicopter and connect this to the battery via e.g. the balancing connector.
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