GRAUPNER mx-20 Hott, Programming Manual

Page: 283 / 296

283 Detail program description - Control adjust
"Swashplate mixer" (page 196)
SWASH MIXER
Pitch
Roll
Nick +61%
+61%
+61%
SEL
... If the swashplate mixer should not follow the joystick
movements properly, fi rst change the mixing directions
from "+" to "-" before you change the servo directions in
the menu ...
"Servo adjustment" (page 90)
S1
S2
S3
Rev cent
+
tr v
0%
0%
0% 100% 100%
100% 100%
100% 100%
0%
0% 100% 100%
100% 100% S4
S5
... In this menu you can also adjust the travel and the
directions of the individual servos. As a basic rule you
should strive to maintain the servo travel 100 % in order
to attain the best resolution and positioning precision.
The direction of travel is determined with "Rev." and,
in the process, make sure that the direction is correct.
The tail rotor servo must run so that the nose (!) of the
helicopter follows the tail joystick direction.
In the menu …
"Joystick setting" (page 94)
Thr.
Roll
Nick
Tr
+
time
4
4
4 0.0s
0.0s
0.0s
4 0.0s Tail
0.0s
0.0s
0.0s
0.0s TL
GL
GL
GL
St
… adjust the incremental width for each "click" of the
digital trim keys in the "
St " column.
The C1 trimming only affects the throttle servo for the
helicopter. At this point there is no need to go into the
particulars of this trimming ("cut-off trim") once again.
For this purpose, please refer to page 54. (Thanks to the
digital trimming, trim values can be automatically saved
with a model changeover and with the
mx-20
HoTT
and even with a change of the fl ight phase).
An additional setting which is specifi c to helicopters can
also be made in this menu in which you determine which
function the trim slider on the pitch joystick should have.
For this purpose, the setting "
TL " is selected or left in
the "Throttle" line. In doing so, the trim lever corresponds
to the accustomed idle trim. If you "slide" it all the way
to the front, the throttle limiter seamlessly adopts the
throttle release later, which is assigned to "Th.L.12" in
the ...
""Control adjust" menu (page 100 … 107)
Input 9
offset
0%
0%
0% –––
0%
Input
Input
Th.L.12
Ct6
–––
–––
GL
GL
GL
GL
typ
nor mal
10
11
… whereas "free" is specifi ed for all other inputs.
This input, "Th.L.12" serves as the
throttle limiter . It
only has an effect on output "6", where the throttle servo
is located. The left proportional rotary control CTRL 6 is
assigned to the throttle limiter by default.
Once again, as a reminder:
W • ith the user of the "throttle limiter" function, you
do not have to program a fl ight phase "throttle
preselection".
The throttle limiter does not control the throttle servo;
•
it only limits the travel of the throttle servo in the full
throttle direction according to its position. In general,
the throttle servo is controlled through the throttle
curve(s) set in the "
Helicopter mix ", which is why
Input 6 must be left "free". In the respect, refer also
to the pages 168 to 170 of the manual.
The C1 trimming also affects only the throttle servo
•
for the helicopter. At this point there is no need
to go into the particulars of this trimming ("cut-off
trim") once again. For this purpose, please refer to
page 54. (Thanks to the digital trimming, trim can be
automatically saved values with a model changeover
as well as with a change of the fl ight phase).
A detailed description of the idle run base setup
•
model and the adjustment of idle and throttle limit
can be found beginning on page 104.