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Multiplex PROFIcar4000 Manual

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PROFI mc 4000PROFI mc 4000
Version 2.0
11
These symbols „Œ•„ indicate that the associated se-
lect button is used to open a name field so that you
can make changes, and that the associated pairs of
buttons „b x“ and „g w“ are used to move the
flashing cursor.
'' TIP: Changing any base type into UNIVERSAL
Any model’s base type can now be changed into
UNIVERSAL at any time. To do this the model’s data
must be transferred to a PC from the transmitter,
converted into UNIVERSAL in the PC, and then trans-
ferred back to the transmitter. If you do not personally
possess the PC program for the PROFI mc 4000,
your local specialist MPX dealer may be able to help
you.
Of special interest
for fixed-wing models
7. Centre offset and trim
for the ELEVATOR control ....
This is how it used to work:
Changes to the centre point or trim of the ELEVATOR
control affected all mixers which included elevator as
an input. This is certainly desirable, for example, for
the elevator input in a V-tail mixer. However, used in
relation to BUTTERFLY, SNAPFLAP or QUADRO
mixers this characteristic results in incorrect camber-
changing flap settings.
This is how it works now:
For the reason explained above the ELEVATOR con-
trol is processed by the mixers BUTTERFLY,
SNAPFLAP and QUADRO without regard to the trim
setting, and ignoring any centre offset. In other words
only the actual position of the elevator stick is passed
to these mixers as the elevator input.
With the earlier arrangement a common problem was
that a change to elevator trim (via the ELEVATOR
input in the BUTTERFLY mixer) used to lead to an
unwanted change in the camber-changing flap set-
ting, and this is now corrected.
8. Suppressing aileron differential
when spoilers are used
This is how it used to work:
If you had set up differential ailerons for a particular
model, the spoiler control always suppressed the dif-
ferential effect when the spoilers were extended.
Naturally this only makes sense if the ailerons are ac-
tually used as „spoilers“. If they are not, then sup-
pressing the differential just caused an unwanted
change in aileron response.
This is how it works now:
Differential is only suppressed „upon request“, i.e. if
you want it, you must program it. This means that you
must assign an analogue switch for aileron differential
which is operated by the transmitter spoiler control.
This is how it’s done:
For our example we will assume that control D is to
be the SPOILER control at the transmitter. Servos 1
and 2 are assigned to BUTTERFLY. For example, the
„Glider Butterfly“ base type is a good starting point.
The default setting for this base type is that aileron
differential is switched on and set to 50% in all flight
modes.
If you now wish the spoilers to suppress aileron differ-
ential for normal flight, you need to do the following:
1. Define an analogue switch
If you are using the „Glider Butterfly“ base type
there is nothing to do, as all values are already
prepared as you need them to be. We will look at
the set values briefly just to make things clearer.
To do this move to
„Menu 2: Assign SWITCHES“.
There you select the analogue switch A4, to
which the spoiler control D is already assigned as
the physical control.
The minimum value for „EFFECT“ is 0%, i.e. ai-
leron differential is completely suppressed. The
maximum value of 100% means that the differ-
ential value set as the control option becomes
fully effective.
The „WINDOW“ from -100% to +100% shows
that the spoiler control will influence the suppres-
sion over its full travel.
Assigning switches
ANALOGUE-SW.: A4 Ä
;FROM CONTROL: D
,WIRKUNG: MAX +100%_
2. Assign differential to the analogue switch:
This is done in
„Menu 1: Adjustments/CONTROLS“.
There you select control C (AILERON), open the
control options select field by pressing the b
button and leaf through using the q/n buttons
or the Digi-adjustor until you find
DIFFERENTIAL. Open the field for selecting the
switch by pressing g and look for the analogue
switch A4. The result should look like this:
… 11 …


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