Operation Manual

Press the
N
key again. Go
past
"S5"
with the
E
key;
after the displays
"LS",
"H"
(control
H
is reserved for
the
Profi mc 3030) and
"1",
the symbol 51
appears
again,
but this
time followed by the symbol
instead
of
the arrow.
This indicates
that
a
momentary switch
is
now
"expected".
lf
you
wish to try out this option
you
will, of course,
have
to
install a momentary switch.
Press the momentary switch.
Servo No. 6
will run to the
pre-set
Fixed Value. Next time
you press
the button the
servo
responds to the slider again,
and so on.
In this
way
you
can use the
momentary switch to
re-
lease or activate a
function in the model which then
re-
mains
"on"
or
"off"
until
you press
the button again.
Caution!
lf
you
set up
this option
you
can
no longer see
at a
glance
the current state
of the
model, i.e. from the
position
of the switch
toggle.
For
this
reason we only
recommend using
this tacility
for
a
non-critical f unction,
or a function
which works in a delinite
and obvious se-
quence;
for example
"undercarriage
retracted/ex-
tended"
or
"smoke
generator
on/otf".
FIXED VAUE again
You can also assign a
servo directly to a
FIXED VALUE,
regardless of
what we have
just
said.
This then func-
tions as a
virtual control. Using any assigned
function
switch
you
can
run the associated servo
to and fro be-
tween
the two
positions you
have chosen.
Typical application:
Aero-tow
release or the tixed input
(offset)
of
a user-defined
mixer. But more on this
later.
The
"Normpos"
option
This option
is only oJ significance
in
conjunction
with
mixers.
When
you
extend
spoilers or
flaps it is
often
desirable to
compensate
for the change in
pitch
trim
which occurs.
To achieve
this,
part
of the spoiler signal
is bled olf to
the elevator
servo.
The following
problem
then arises:
The
"idle
position" (brakes
retracted) of the transmitter
spoiler
control
(e.9.
stick or slider) is usually
one of the
two end-points.
lf we were
just
to mix the spoiler
signal
with the elevator,
"full
movement" of the transmitter
control
would shift the elevator
significantly from
its neu-
tral
position.
This is not what we want; the
elevator
should
not
be affected
at all at the
"sooilers
retracted"
oosition.
This can be achieved
by sending the
"spoiler
-
eleva-
tor"
mixer a
"corrected"
signal,
instead of the true
spoiler signal
(curve
A in the diaglam).
lf the
"spoilers
retracted" end-point
is
point
X in
the diagram,
then a
signal corresponding
to curve
B
should
be sent to the
mixer.
For the end-point Y the correct
curve is curve C.
As
you
can see
from the diagram, the
mixer at the
"spoilers
retracted"
position
now receives a
"
zeto"
mixed input, but
it receives the normal,
full
compensa-
tion value at
"spoilers
extended".
There is not much to adjust
in this option.
lt is
activated
by
the transmitter automatically
when SPOILER
or
FLAP is assigned.
You only need to tell the transmitter
the oosition
of the transmitter
control for
"spoilers
re-
tracted"
-
t'back"
or
"forward".
As an example
we will consider
"09
CORTINA". Select
this
model, then, as in the
previous
examples,
press
@NN.
When leafing through the options
with
"SPOILER"
as
the transmitter
control the
following display appears:
rEt
:
:;Fü
I L f.luFjlitlLl
FIJ:;ITIÜH
I5:
T
1
Press the
Z
key; the arrow under
"Normpos"
starts to
flash.
You
can
reverse the facility
with the
El
key, if
nec-
essary
At
"Arrow
forward"
you
select
"idle
forward", and
vice
versa.
With the
E
key
you
switch
to Norm
Pos
"Centre",
and
if
your
transmitter control
is at centre
(a
-
sign
will be vis-
ible in the display)
you
can switch
over to one of
the
end-points with the
E
key. lf necessary
you
can
then
change the end-point
again by
pressing
El,
and select
whether
Norm Pos is to affect
forward movement
(r')
or
back
movement
(+).
The Norm-position
is the source
point
for mixed functions.
That's it; leave the menu
in the
usual
way with the
E)
key.
One
further
point
to note
in
this connection:
lf
you
wish to mix spoiler and elevator,
or flap and eleva-
tor,
you
must assign the corresponding
servo to
"ELE
+" instead ot'ELE'I
In this case the
inputs Flap
and
Sooiler
will
be available
in addition to elevator.
Spoilet.
,.4
Fig.27
37