GRAUPNER MC-22S, Programming Manual

Page: 103 / 180

103 Program description: Mixers
or “on”. Mixers to which no switch has been assigned
are permanently switched on.
A switch must be assigned to the 4th mixer if you
wish to switch between two fi xed mixer values (yet to
be defi ned), corresponding to the two end-points of
a (proportional) transmitter control. This means that
the “switch channel” mixer cannot be switched “on” or
“off” like the other mixers.
When selecting a control switch (G1 ... G4 or G1i
... G4i) please remember that you also have to as-
sign it to a transmitter control; this is carried out in the
»
Control switch « menu.
“Type” column
Including the trim
If you are using one of the primary control functions
1 ... 4 you can set the trim value of the digital trim le-
ver to affect the mixer input, if you wish. Use the ro-
tary control to select “Tr.” in the inverse video fi eld for
the mixer in question.
Serial mixer link
As has already been explained (see page 101), you
can also link mixers together in series: in a similar
way to a Y-lead, the “input signal” of a control chan-
nel branches off to the “series wired” mixer as it is on
its way to the servo, and is passed to another chan-
nel; see page 27. In the “Type” column select the ar-
row “
” to set up this link, or “Tr ” if you also wish
the trim to act on the mixer input.
Example:
Serial connection of mixers according to the following
arrangement:
Two mixers (MIX 6 7 and 7 8):
In this very simple example, where mixer 2 is connec-
ted in series, mixer 2 acts on the whole (mixed) servo
signal present at control channel 7, and passes it on
to control channel 8 in accordance with its set mixer
ratio, as shown in b), and not just to the control signal
from control function 7, as shown in a). The effect of
control “6” therefore extends as far as output “8”. The
serial link for additional subsequent mixers can be
continued as far as you like, so that, for example, the
effect of transmitter control signal “6” extends as far
as output “12” if a mixer 8
12 is programmed with
its associated mixer ratio. Of course, each individu-
al mixer can still be controlled via the assigned trans-
mitter control even when a serial link has been set up.
The fi xed-wing and helicopter mixers also affect
“series wired” mixers in the same manner.
Additional special features of free mixers
Mixer input = mixer output
If you set up a mixer whose input is the same as its
output, e.g. C1
C1, it is possible to achieve very
special effects in conjunction with the option of swit-
ching a free mixer on and off.
A typical application for this type of mixer is described
on pages 130 and 136.
Tip:
If you separate the relevant control function, in this
case “8”, from control channel “8” using the »
MIX-
only channel « menu (see page 108), then the ser-
vo response is defi ned only by the mixer ratio (which
has not yet been programmed). This enables you to
set up linear curves using the mixers 1 ... 4, or fi ve-
point control curves for any transmitter control using
the curve mixers 5 and 6, as described in the »
Chan-
nel 1 curve « menu. You can also include them in the
fl ight phase switching, in which case this “connec-
tion” can be made switchable. However, in this case
the “connection” is not just switchable, but can also be
a) without a serial link
b) the same mixers with a serial link
L i n e a r M I X 1 6 7 = >
L i n e a r M I X 2 7 8 = >
L i n e a r M I X 3 ? ? ? ? - - - -
L i n e a r M I X 4 ? ? ? ? - - - -
t y p e f r o m t o A d j u s t
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