PowerBox Systems iGyro SAT Instruction Manual page 12

3.4 LEARNING THE CENTRE AND END-POINTS
In this procedure the iGyro learns the stick neutral position and end-points. The system
also employs a complex three-dimensional algorithm to determine whether delta or
V-tail mixers are present. It makes no difference if differential or unequal travels are
programmed into the mixers. They can even include ailerons operating as landing
flaps without the flap travel having any effect on the aileron gyro function.
To start the Learning mode, locate Stick end-points and press Activate.
Wait until you see Hold right aileron after Learn on the screen. Move the transmit-
ter's aileron stick to the right end-point, and press one of the two arrow buttons.
After a moment the screen switches to Hold left aileron: move the aileron stick to
the left, and press one of the buttons.
Repeat the procedure for the elevator at the Up elevator/Down elevator display, and
for the rudder at Hold right/left rudder.
The iGyro is now ready for the model's set-up flight. Increase the gain control
setting at the transmitter, and – to be on the safe side – check that the directions
of gyro effect are correct. The directions will be correct unless you made an error
with the installed orientation or the stick end-points.
Note: If you subsequently alter the trims or end-points (travels), you should
repeat the stick end-point learning procedure. In most cases minor changes to
the trims or the end-points will have a barely noticeable effect. However, if – for
example – you use Attitude Assist on ailerons, a change to the trim will disable
this feature, as Attitude Assist is only active at the learned Centre position; this
applies to all iGyros.
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