GRAUPNER mx-12 Hott, Programming Manual

Page: 85 / 200

85 Program description: base settings - model helicopter
the original value once you have stored the switch-
ing threshold.
Direction of rotation of main rotor
mod name
stick mode
rotor direct
swashplate
1
right
3sv(2rol)
cut off
STARLET
–125% +100% 1
In the “Rotor direction” line you enter the direction of
rotation of the main rotor using the arrow buttons of the
right-hand touch-key, after briefly pressing the central
SET
button:
“right”: the main rotor spins clockwise as viewed from
above.
“left”: the main rotor spins anti-clockwise as viewed
from above.
Simultaneously touching the  or  buttons of the
right-hand touch-key ( CLEAR ) switches to “right”.
right-hand
rotation
left-hand
rotation
The program requires this information in order to set up
the mixers to work in the correct “sense”; this applies to
the mixers which compensate for rotor torque and motor
power. You will find these in the “
Helicopter mixer
”
menu:
Pitch
Ch1  throttle
Ch1  tail rotor
Collective pitch min.
stick mode
rotor direct
swashplate
1
right
3sv(2rol)
cut off –125% +100% 1
pitch min rear
In the “Collective pitch min.” line you can set up the
direction of operation of the throttle / collective pitch
stick to suit your preference. This setting is crucial to the
correct operation of all the other options in the helicopter
program which affect the throttle and collective pitch
functions, i. e. the throttle curve, idle trim, tail rotor mixer
etc.
Briefly touch the central
SET button of the right-hand
touch-key, and the direction of operation of the throttle /
collective pitch stick is highlighted. Now you can select
the required variant using the arrow buttons of the right-
hand touch-key:
Pitch
The meaning is as follows:
“front”: minimum collective pitch when the collective
pitch stick (Ch 1) is “forward” (away from you);
“rear”: minimum collective pitch when the collective
pitch stick (Ch 1) is “back” (towards you).
Simultaneously pressing the  or  buttons of
the right-hand touch-key (
CLEAR
) returns the collective
pitch min. position to “rear”.
Note:
The Ch 1 trim always affects the throttle servo only. •
By default what is known as the “throttle limiter” is set •
(see page 99); this limits the travel of the throttle ser-
vo in the direction of maximum throttle, acting sepa-
rately from the collective pitch servos. This point can
be programmed using the “
Lim
” input in the “
Trans-
mitter control settings
” menu.