F/W Version 2.1
9
7.
Brown-out Fast Recovery
The recommended operating voltage of
A3X Pro E.
is 5~6V. The controller will perform a protective reset when an
unforeseen power failure occurs such as a voltage drop (< 2.7V) or interruption of the BEC. It will take several
seconds in normal startup process because of the self-test and gyro calibration, which will be unacceptable during
flight. This function is used to handle such emergency situations. When an unexpected reboot happens, the
controller will perform a fast startup and resume working very quickly by skipping the self-test and gyro
calibration to ensure the safety of your aircraft. But even so, the most important issue is that you should always
choose a reliable BEC for your aircraft!
8.
LED Indicator
A RGB LED indicator is used for working status display and error report, shown below:
Condition
Color
Description
Power On
White, 2 Seconds
Ready to start initialization.
White, Fast Flashing
Initializing, don't move the aircraft until initialization is done!
White, 1 Flash
Initialize success.
Red, Fast Flashing
Initialize failed, please retry.
Operating
Red, Slow Flashing
No signal checked, you must get AIL, ELE and RUD connected.
Solid Red
Gyro deactivated mode, ready for flight.
Solid Blue
Normal stabilization mode, ready for flight.
Solid Violet
3D flight mode, ready for flight.
Solid White
Self-balance mode, ready for flight.
Others
Green, Fast Flashing
Stick centering.
9.
Start Up Steps
To achieve the best performance, please follow the steps below before every flight:
Step 1
Turn on the transmitter.
Step 2
A3X Pro E.
needs to perform a horizontal calibration during initialization, before power on, place the
aircraft on a stable platform and keep it in the horizontal state.
Don't take it in your hand to power on!
The
aircraft should be placed face up whatever the mounting way is, or it may not initialize properly or even result in a
complete failure.
Step 3
Power on the aircraft,
the LED will turn WHITE for about 2 seconds then begin to flash rapidly,
which means the controller is initializing. Do not move it during this phase
. After successful initialization, the
LED will flash WHITE once. If the LED keeps flashing RED rapidly, you have to cut off the power and retry.
Step 4
After initialization, the color of the LED will give you the information about which flight mode is
currently selected. Don't forget to move the sticks and check if the servos move in the correct direction before
flight.
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Sept. 12, 2013
