GRAUPNER mx-24s, Programming Manual

Page: 173 / 216

173
Two rudder servos
In this example we will connect two rudders “in paral-
lel”. The second rudder could be connected to recei-
ver output 8, which is not already in use.
Variant 1
Move to the menu ...
»Dual mixers« (page 144)
… and select one of the dual mixers. Enter “8” and
“RU” using
SEL , as shown in this screen-shot:
8
0%
Diff.
SEL
? ? ? ? 0%
SEL
? ? ? ? 0%
SEL
RU
D U A L M I X E R
Mixer
Mixer
Mixer 1
2
3
Of course, the same-sense link “ ”, which would
be available via “input 8”, must be disabled for this ap-
plication. For this reason it really is essential that you
set input 8 to “free” in the menu ...
»Control adjust« (page 78)
0% + 100%+100% 0.0 0.0
0% +100%+100% 0.0 0.0
0% +100%+100% 0.0 0.0
0% +100%+100% 0.0 0.0
SYM ASY
ASY SYM
SEL
SEL
«normal »
offset –time+
libre
free
Input 5 free
Input 6
Input 7
Input 8 free
free
–
… in order to separate the control function from the
control channel.
If all the dual mixers are already in use for other pur-
poses, you can still fall back on the following alterna-
tive.
Variant 2
In this variant you move to the menu …
»Free mixers« (page 135)
8 =>
?? - - - -
?? ?? - - - -
?? ?? - - - -
SEL SEL SEL
RU
??
Tr 1
2
3
4
LinearMIX
type
LinearMIX
LinearMIX
LinearMIX
from to Adjust
… and set up a “Tr RU 8” mixer.
In the “Type” column select the “Tr” setting, to ensure
that the rudder trim affects both rudder servos.
Now switch to the graphic page and set a SYM metri-
cal mixer input of +100%:
+100% +100% 0 %
m
OU
T
P
U
T
-- +
100
STO ASY SYM CLR
8 RU
O f f s e t
Linear MIX 1
Mix input
Here again, “Input 8” should be programmed to “free”
in the »
Transmitter control adjust « menu, in all
fl ight phases if you have set them up. It is easier to
separate control function (8) from control channel “8”
in the
fl ight phase independent menu …
»MIX-only channel« (page 142)
1 2 3 5 6 7 8 9 1112 4 10
M I X O N L Y C H A N N E L
MIXonly
normal
173 Programming examples: Fixed-wing model
Two elevator servos
This time we need to wire up two elevator servos “in
parallel”. In accordance with the receiver socket se-
quence – see the section starting on page 37 – the
second elevator servo should be connected to recei-
ver output 8.
The software is pre-confi gured for this arrangement,
i. e. a suitable mixer is provided as standard. You will
fi nd this in the menu:
»Model type« (page 70)
In this menu hold the rotary control pressed in and
switch to the “Tail type” line, where you simply select
the “2 EL Sv 3+8” entry:
SEL
Offset +100%
2 AIL 4 WK
2 EL Sv 3+8
M O D E L T Y P E
Tail type
Aileron/camber flaps
Brake
Input 1
Motor on C1 None
The travels of the two servos can be fi ne-tuned in the
familiar way using the »Two rudder servos
Servo ad-
justment « menu.