GRAUPNER mx-16 ifs, Руководство по программированию

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118 Programming example: model helicopter
restrict the full throttle travel dictated by the collective
pitch stick when the model is in fl ight.
Set-up note for electric helicopters:
Since electric motors by their nature require no idle
setting, the only important point when setting up an
electric-powered model helicopter is that the adjustment
range of the throttle limiter should be set signifi cantly
higher and lower than the adjustment range of the
speed controller. It may therefore be necessary to set
the “Travel” value of the throttle limiter to an appropriate
point in the “Lim” line of the »
contr set. « menu, such
as 110%, symmetrical. However, further fi ne-tuning can
be carried out exactly as described here for the glow-
powered machine.
An additional function needs to be activated in the …
»base sett.« menu. (pages 50 … 54)
Even if you are a beginner to fl ying and are not yet
ready for this, it is advisable at least to defi ne the auto-
rotation switch, so that you have an “emergency cut”
switch for the motor. This is carried out by selecting the
“Auto-rotation” line with the rotary cylinder pressed in,
and then moving one of the ON / OFF switches (SW 1
… 4) to the “ON” setting. On the right of the screen the
switch number (in our example “1”) appears:
Schwebe
10:01
SEL
1
pitch min
clock front
C3
phase 2 hover
autorotat.
This switch should be located at a position on the trans-
mitter where you can easily reach it without letting go of
the stick, e. g. above the collective pitch stick.
the rotary proportional control CTRL 7, is assigned to
the “lim” input, whereas all other inputs are programmed
to “empty” by default. The “lim” input serves as throttle
limiter. It acts solely on output “6”, to which the throttle
servo is connected.
Just to remind you:
The throttle limiter does not control the throttle servo; •
it simply limits the travel of this servo in the forward
direction, according to the setting of the throttle limit-
er. The throttle servo is usually controlled by the col-
lective pitch stick via the throttle curve or curves you
have set in the »
heli mixer « menu, for which reason
input 6 should always be left “empty”. For more de-
tails please refer to the sections on pages 62 and 63
of the manual.
Moreover the Ch 1 trim only affects a helicopter’s
•
throttle servo. This section does not describe the spe-
cial features of this trim (“cut-off trim”) again, as it
is covered on page 34. (Thanks to the digital trims,
trim values are automatically stored when you switch
models and when you switch between fl ight phases.)
You will fi nd a detailed description of the basic idle
•
set-up procedure and the method of adjusting idle
and throttle limit in the section starting on page 62.
Now select the ASY fi eld in the “Travel” column, and
increase the value in the highlighted fi eld from +100% to
+125%, with the throttle limiter at its forward end-stop:
+
100% 100%
111% 88%
SYM
+ +
+ +
+
ASY SEL
100%
+125%
I8
t r v
c t r l 7
e m p t y
lim
gyr e m p t y
This ensures that the throttle limiter cannot possibly
Note:
For more information on setting up this “emergency OFF
switch” please refer to the section in the centre column
of the following page.
And another tip:
Please make it a habit to give all the switches a common
“on” direction; then a quick glance at the transmitter
before fl ying will soon reassure you that all switches are
“off”.
If you wish, you could at this point move to the line
above and assign a fl ight phase switch for fl ight phase
2, which is already assigned the name “hover”, but this
simple programming example deliberately excludes
such refi nements.
You have now completed the basic settings at the trans-
mitter, i. e. the procedure which you will need to use time
and again when setting up new models.
The actual helicopter-specifi c set-up is carried out
primarily in the …
»heli mixer« menu. (pages 78 … 87)
ch1
ch1
ptch
thro
tail
normal
gyro 0%
SEL
inp8 0%
In the very fi rst line you will see the “ptch” function, and
pressing
ENTER or the rotary cylinder takes you to
the appropriate sub-menu. At this point you will see a
graphic representation of the collective pitch curve. This
is initially defi ned by only three reference points, and in
most cases this is quite adequate.