Handleiding Multiplex PROFIcar4000 (pagina 11 van 16) (Engels)

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PROFI mc 4000PROFI mc 4000

Version 2.0

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:

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