TruTrak DFC Operating Manual - Manual (Page 12)

11
DFC Series Setup Procedure
Lateral Setup
The lateral setup consists of
setting activity, torque, serial
baud rate, and magnetometer
calibration and various
configuration parameters. To
enter the setup mode, press and
hold the [MODE] button for
two or more seconds, until the
first setup screen appears. This
screen shows current values for
the activity and torque of the
aileron servo, with an underline
under the present setting of
activity. A typical screen might
show:
The underlined number is
set by rotating the encoder
knob. Turn this knob to set the
activity level to the desired
value for the particular aircraft.
Any value between 0 and 12
may be chosen. In this example,
the value of 1 will be selected.
Activity should be set so as to
not be excessive in turbulence
and yet sufficient to fly without
hunting in still air. (Any lost
motion or play between the
servo and the control surface
can cause hunting in still air).
Once activity is set to the
desired value, press and quickly
release the knob to confirm and
enter the selected value into
storage. The underline (cursor)
will now move to the torque
setting:
LAT ACTIVITY 1
LAT TORQUE 200
In a manner similar to
activity, use the encoder knob to
select the desired value of roll
servo torque. This value should
be between 75 and 250. A
default value is set at the factory
but may need to be modified to
suit a particular aircraft. The
value chosen should be
sufficient to fly the aircraft, but
not so much that it is difficult to
override the autopilot if
necessary.
LAT ACTIVITY 8
LAT TORQUE 200
Having selected the desired
torque level, again press and
quickly release the encoder
knob to confirm and enter the
selected torque value into
storage. The unit will now show
the next screen:
BAUD RATE 4800
The value shown represents
the speed of the primary
RS-
232
interface to the external GPS
unit. By default at the factory it
is set to 9600 baud, as that is the
most commonly used value.
However, it may be set to any
of 600, 1200, 2400, 4800, or
9600 baud. Consult the manual
for the GPS unit and follow its
setup instructions to determine