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

Function mode HELICOPTER

Dual Rate and Exponential; Servo Reversing

Dual Rates and Exponential

Channel
D/R POSITION
AILE: Aileron
ELEV: Elevator
RUDD: Rudder
Exponential value
Dual Rate value
Go to Reversing
SW menu
Go to Servo Travel
Screen
Select channel,
EXP or D/R
Dual rates are availabe for the aileron, elevator and
rudder channels of your RC aircraft.
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 rates, 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) re-
mains 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 expon-
26 Function mode HELICOPTER
ential 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.
Accessing the Dual Rate and Exponential Function
1. Place the transmitter power switch in the ON positi-
on.
2. Access the Function mode by pressing the Down
Change channel
and Select keys simultaneously.
or Value
3. Press either the Up or Down key intil D/R & EXP
appears in the upper left corner of the LCD.
Reset selection to
default
4. Press the (+) or (-) 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 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.
8. Press the Down arrow key to access the SERVO
TRAVEL SCREEN.
9. Press the Down arrow and Select keys simultane-
ously to exit the DUAL RATE AND EXPONENTIAL
mode.

Servo Reversing

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 helicopter.
Channel beeing programmed THR 1: Throttle
AIL 2: Aileron
ELE 3: Elevator
Go to Sub Trim menu
Go to D/R & Exp
menu
Select channel,
to reverse
Accessing the Servo Reverse Function
1. Place the transmitter switch in the ON position.
2. Access the Function mode by pressing the Down
and Select keys simultaneously.
3. Press either the Up or Down key until the REVER-
SING SW appears in the upper portion of the LCD.
4. Using your transmitter`s control sticks, switches and
potentiometers, move the control surfaces on your
aircraft. Note the travel direction of each of the
RUD 4: Rudder
GEA 5: Gear
PIT 6: Pitch
Change servo
direction
Reset direction to
normal