Multiplex Profi MC 3010 User Manual

And
now the
final touch:
We don't always
want to
fly tight
loops; for
"normal"
fly-
inq it
is
better
if the flaps do
not
deflect
automatically
wf,en the elevator
is
moved. Obvious
solution:
install
a
switch
so
that the
part
of the
elevator signal
that
is Jed
to the
flap servo can
be switched
on and
off.
We
have introduced
a switch
into the signal
line
"eh
evator
to
flap input".
Fig.32
Now
you
can
probably
see how
it all hangs
together:
Each servo
which is to
receive
more than
one single
signal
is
provided
with
an
(imaginary)
"black
box".
The
"6lack
box"
has inputs
for all
the signals
we need
to
pass
to the servo.
But
it has only
one output
-
and that
irrovides
the composite
signal
which is actually
fed to
the servo.
Now
we
provide
an adjustor
for each
input, so
that each
of
the
part-signals
can
be
varied in size.
A
"reversing
device"
is also
fitted for each
signal.
And finally,
where
it is likely
to be
useful,
we fit a switch,
so that
each
part-signal
can be
turned on
and off.
It is this
imaginary
"black
box" that
we call
a mixer.
Now
we will
look at a different
example:
a
V'tail.
First we
will
only
look at one tail
panel
-
one
"half".
In this
case
we need
a
"black
box"
which combines
the
"elevator"
and
"
rudder"
signals.
lt is called
a
V-tail mixer.
In
slightly
more
technical
and abstract
terms:
A V-tail
mixer combines
the
"elevator"
and
"rudder"
signals
and
feeds
the composite
signal
to the servo.
We need
the same
mixer
for the other
half of
the
Vtail.
Of
course,
the
size of the
two signals
is
fully variable'
as
in the Drevious
mixer.
In this case
we
have to
pay
atten-
tion
to the
"prefix",
i.e. the
direction
of rotation
of the
part-signals:
the
"elevator"
part
must work
in the same
direction
for both
halves
of the
tail. The
"rudder"
part
must act
in opposed
directions.
But this
presents
no
oroblem,
as
we can,
of course,
adjust
the direction
of
rotation separately
for each
part-signal.
Even better:
we
do
not
need to
worry any
more about
the
mechanical
linkages
and the
space available:
when
the model
is
comfllete,
we
apply,
for example,
"up
elevator";
if the
elevalor
moves
down,
we simply
reverse
the direction
of
rotation of the
"elevator
part-signal".
The same applies
to the
rudder signals.
Since
the magnitude
and direction
of
each
part-sig-
nal is fully adiustable,
you
can see
that
installation
problems
are a thing
of the
past.
As in this example,
there are
many other
commonly
used
"
mixed
functions",
for which
"
pre-defined" mixers
can
be used.
A
"flaperon"
mixer,
for example,
produces
a composite
signal
for the f laperon
servos
consisting
oJ
the basic
tlap and aileron
functions
(hence
"tlaperon").
lf
vou
have a
model
fitted with
flaperons,
you
again
neäd two such
mixers:
one
for each flaperon
servo.
Commonly
used
mixers
can be
pre-defined. The
part-signals
tor the
tunctions of
a
pre-def
ined
mixer
are
already
laid down.
Each
mixer of this
type
is
given
a
name
which
describes
its use clearly.
Such
pre-defined mixers are available
in an
"ad-
equatC"
number
in
your
transmitter,
and cater
for all
the
most commonly
used
applications'
You will
find mixers
for:
V{ail,
"V-tail
+", flaperons,
"elevator
+", snapJlaps,
delta,
"aileron
brakes
(crow)",
"Quadro".
lf at this
point
the
operation
of any
one of these
mixers
is
not clear
Jrom
its title, don't
worry.
They are all
explained
in lull at a
later stage.
You can
implement
each
of these
mixers
(i.e.
install the black
box
in front of
a servo)
as often
as
you
like.
The actual
limit is
nine
times,
since
the system
ls
"only"
able
to control
9 ser-
vos. That
has to be
the definitive
answer
to the
oft-
posed question
"
how many
mixers?"
!
The answer
is not what
you
might
think, and
certainly
not I
mixers.
lt is I
mixer systems
with
10 different
transmitter
controls
to
4 di{ferent
inputs,
i.e. 10-
possibili-
ties
per
servo!
How to use
the
pre-defined mixers
The
use oJ
the
pre-defined,
"
ready-made"
mixers
is
based
on
the same
scheme
that
you
have already
come
to
know:
first assign,
then
adiust.
Once again
the
transmitter
"oJfers"
options
in the
form oJ menus.
From
what
we have
iust
said
it
should
be
clear
that
mixers
are assigned
to the servos.
First a simple
example:
the V-tail
Here we
will suppose
that
you
have set
up
memory 03
for a
model
named
"TEST",
and
assigned
the controls
like
this:
"Transmitter
control
B
=
ELEVATOR"
and
"Transmitter
control
C
=
RUDDER".
Servos
2 and
3 are
to ooerate
the Vlail.
46
First the
mixer is assigned
to
the servos:
Move to
the
"Assign
servos"
menu.
There
you
first select
servo
No.2
in the usual
way.
Now
"activate"
the select
function
field with the
Z
key.
Leaf through
with the
E
key.
The
lunctions with
which
vou
are bv
now
familiar
from the
normal assigning
pro-
öedure
afpear
one by
one.
After
"FIXED
VALUE" and
for the
full list.
After
"ELEVATOR
+" comes
"V-TAIU'.
This is the
mixer
we want.
(After
this comes
the
"V-
TAIL+
"
mixer, which
can do
even
more, but
we will
come
to that
in a moment).

Multiplex Profi MC 3010 Specifications

General

Brand	Multiplex
Model	Profi MC 3010
Category	Remote Control
Language	English