Function Mode Airplane; Dual Rates And Exponential; Servo Reversing - GRAUPNER MX-12 - PROGRAMMATION Manual

Function mode AIRPLANE

Dual Rates and Exponential; Servo Reversing

Dual Rates and Exponential

Channel
AILE: AILERON D/R POSITION
ELEV: ELEVATOR
RUDD: RUDDER
Exponential Value
Dual Rate Value
Dual rates are available for the aileron, elevator and
rudder channels of yor R/C aircraft. The combined Dual
Rate Function is discussed at page XX. Dual rates may
be defined as the ability to vary the travel or throw rate
of a servo from a switch. Due to the differing travel ra-
tes, you will find that the sensitivity of the control either
increases or decreases accordingly. A higher rate, or
travel, yields a higher overall sensitivity. You may find it
easier to think of the Dual-Rate function as double-rates
or half-rates.
The amount of travel is adjustable from 0-125% in 1%
increments. The factory setting, or default value, for
both the 0 and 1 switch positions is 100%.
Exponential reduces the sensitivity in the middle portion
of stick movement, while still allowing full travel at the
end of the stick movement. The end result (travel)
remains the same, although exponential changes the
rate at which it achieves this travel. The adjustable
range is from 0-100%. Zero percent (0%) is linear stick
control, meaning the response rate is equal throughout
the stick control. 100% is full exponential. The larger the
exponential value, the less servo action or sensitivity
you will notice around the neutral setting.
Either switch position may be selected as the low or
high rate by placing the switch in the desired position
and adjusting the value accordingly.
Go to Reversing
SW menu
Go to Servo
Travel Screen
Select channel
EXP or D/R
Accessing the Dual-Rate and Exponential Function
1. Place the transmitter power switchin the ON positi-
on.
2. Access the Function mode by pressing the Down
and Select keys simultaneously.
3. Press either the Up or Down key until D/R EXP
appears in the upper left corner of the LCD.
4. Press the (+) ir (-) key until the desired channel
(aileron, elevator or rudder) appears.
5. Select the switch position for which you want to
adjust the rate. The number to the upper right of
the current rate value on the display indicates the
current position of the Dual-Rate switch for the
channel that you have selected. Either a 0 or a 1 will
be shown, corresponding to the position of the
switch. To select the opposite switch positio, move
the appropriate Dual Rate switch to the opposite
position. The number that appears above the current
rate value reflects the change.
6. Adjust the rate for the channel and the switch positi-
on just selected. To decrease the throw rate, move
the cursor to the D/R position using the Select key,
then press the (-) key. To increase the throw rate,
press the (+) key. As stated previously, the adjustab-
le rate is from 0-125% for each switch position and
channel.
7. Press the Up arrow key to access the REVERSING
SW menu.
8. Press the Down arrow key to access the SERVO
TRAVEL SCREEN.
Change channel
or value
9. Press the Down arrow and Select keys simultane-
ously to exit the DUAL RATE AND EXPONENTIAL
Clear
(Lin or 100%)
mode.

Servo Reversing

Channel being programmed
The Reverse Switch function is an electronic means of
reversing the throw of a given channel (servo). All six
channels of the mx-12 offer reversible servo direction.
This will ease setup during the servo installation into
your aircraft.
Go to Sub Trim menu
Go to D/R & Exp menu
Select channel to reverse
Accessing the Travel Adjust Function
1. Place the transmitter power switch in the ON positi-
on.
2. Access the Function mode by pressing the Down
and Select keys simultaneously.
THR 1: THROTTLE
AIL 2: AILERON
ELE 3: ELEVATOR
RUD 4: RUDDER
GEA 5: GEAR
FLA 6: FLAP
Change servo direction
(NR)
Reset direction to
normal (Adjust to N)
Function mode AIRPLANE 19