Linear Mixers - GRAUPNER mc-16 Programming Manual

el" to avoid this; alternatively, set "Travel lim-
it" on the "Servo adjustment" menu and/or
reduce mixer values.
• Take advantage of the ever-present op-
tion to switch over to the transmitter's »Ser-
vo display« menu, see page 274. This menu
is reached from almost any menu with a brief,
simultaneous tap on the  keys of the left
four-way button. This menu gives you the op-
portunity to check the effects of all of your set-
tings on a single screen.
Mixer ratios and mixer neutral point
Now that we have explained the wide-ranging nature
of the mixer functions, the following section describes
how to program linear and non-linear mixer curves.
For each of the 12 available mixers, the mixer curves
are programmed on a second page of the screen
display. Use the selection keys  on the left or right
four-way button to select the desired mixer line. If
necessary, use the four-way button's selection keys
to move to the right column (" ") then briefly tap the
centre SET key of the right four-way button to access
the graph page.
M1 ... 8: Setting linear mixer values
As a practical example, we will now define a linear
mixer curve to resolve the following problem:
For a motorized aircraft model, the two servos con-
nected to receiver outputs 6 and 7 – defined on
the "Aile/flaps" line of the »Model type« menu as
"... 2FL" – are to be used for actuating landing flaps.
That is; when a transmitter control is moved, they must
deflect downwards only. This requires a simultaneous
elevator trim, however.
First allocate, for example, input 6 to the left slider con-
trol Sl1 located in the middle of the console by making
settings in the »Control adjust« menu. A transmitter
control on input 6, – as shown in the above table – will
control the two servos connected to receiver outputs
6 and 7 by default as flaps. Leave the default value of
"GL" in the "Type" column alone, however, to configure
this setting globally for all flight phases – as is the case
for the free mixer.
»Control adjust« menu
In5 GL fr –––
In6 GL Sl1 –––
In7 GL fr –––
In8 GL fr –––
normal
typ SEL
Note:
Note that if two flap servos have been
selected, any transmitter control assigned to
input 7 will be decoupled in the software in
order to avoid errors in operating the flaps. However,
in the interests of safety, you should make a habit of
leaving all inputs not currently required to "free", or of
resetting these back to "free"!
Start by moving this transmitter control to its forward
limit and adjust the landing flaps so that they are re-
tracted or closed in this position. If you now move the
dial to the rear, the flaps should move downward; if not
the direction of servo rotation must be adapted.
We now turn our attention to the first mixer shown in
the screen image on page 202 ("6  EL"), to which
switch 4 was assigned:
M1
M2
M3
M4
M5
Briefly tap the centre
ton to open the second screen page:
L.Mix 1
0%
0%
0%
0%
offset
If this screen appears, the mixer has not yet been
activated in combination with the assigned toggle
switch – "4", in this example. If so, operate the switch:
L.Mix 1
Mix input
Offset
SYM
The continuous vertical line represents the current
position of the transmitter control linked to input 6.
(However, it is not visible in the above graphic because
it is at the left edge since slider control Sl1, in this
example assigned to input 6 (see previous page), is at
its forward limit.) The dotted vertical line in the middle of
the diagram indicates the position of the mixer neutral
point – see under "Offset", below. The solid horizontal
line shows the mixer ratio, which currently has the
value zero over the entire stick travel; accordingly, the
elevator will not yet follow the movement of the flaps.
First, the ...
Program description - Free mixers
6 EL 4
C1 EL C4
?? ??
S EL 2
?? ??
ty fr to
SET key of the right four-way but-
6 EL
OFF
6 EL
0% 0%
0%
ASY
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