F/W Version 2.1
2
1
This manual is written only for firmware Ver.2.1.
2
Always choose a reliable BEC or ESC to provide a stable operating voltage for the controller.
The BEC should have sufficient capacity to provide working current for all the electronic devices
on the aircraft especially when using several high torque servos.
3
Remember to perform stick centering after first installation, or replacing a new radio system, or
making a trimming or sub-trim change in the transmitter. See P16 "11.13. Stick Centering".
4
After the installation, center all surfaces of the aircraft by adjusting the length of the linkage rods, or
sub-trim and trimming setting in the transmitter. Then perform a stick centering to make the controller
re-learn the new center position for all channels.
5
It is extremely important to make sure that the gyros are compensating in the correct direction
before flight, otherwise it could lead to losing control or even crash during flight!
See P13 "11.8.
Gyro Direction".
6
Always disable any mixing functions for delta-wing or v-tail in your radio system, these will be done
by
A3X Pro Expert.
7
Such functions as End-Point, D/R or EXP of the radio system can be used as usual according to your
preferences. But please let them stay at default during installation.
8
Before power on, the aircraft should be placed face up on a stable horizontal platform whatever the
mounting way of the controller is. Don't move the aircraft during initializing (while the LED flashing
WHITE rapidly). Always verify that the gyro compensates in an correct direction before every flight.
9
Following the suggestions on your first flight: Switch to normal stabilization mode, set all the gyro
gain to a lower volume (about 30%), or turn off the gyro completely. Adjust the trimming buttons on
the transmitter to find a appropriate zero offset for all surfaces during the flight, then perform "Stick
Centering" to make the controller re-learn the current center positions. Too large gain setting could
make the aircraft difficult to control. We would strongly recommend that you use the remote master
gain control to make it much more convenient for gain adjusting during the flight.
10
If the servo moves to one side automatically without any controls when switching to 3D flight mode,
you have to perform the stick centering again, or even increase the stick dead band.
11
When operating in self-balance mode, the controller is used as a level stabilizer. The angle error caused
by installation will probably make a wrong attitude detection of the aircraft, when it happens, the
function of level offset should be used to correct the errors. See P14 "11.12.Level Offset".
12
The included USB adapter is only used to upgrade the firmware for
A3X Pro E.
and program card.
Please check our website
WWW.BAY-TEC.DE
where we will inform you about the latest
updates and downloads.
13
The controller or the card can be reset by refreshing the firmware, when it doesn't work, it will be an
effective way to resolve the problems caused by the software.
VERY IMPORTANT!
HTTP://WWW.BAY-TEC.DE
Sept. 12, 2013
