Bedienungsanleitung Multiplex PROFIcar4000 (Seite 6 von 16) (Englisch)

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PROFI mc 4000PROFI mc 4000

Version 2.0

1. Fixed value (brake open) = +100%

;SERVO 1:SERVOMIX

,1:FIXED VAL LOG1*Ä

"• • •" 100%

" "P: 1•

2. Fixed value (brake closed) = -100%

;SERVO 1:SERVOMIX

,2:FIXED VAL LOG1 Ä

" "-100%

"– – –"P: 1•

When you are dealing with fixed values, pressing the

w button (now represented on the screen by „•“) al-

ways makes the far-right point flash, so that it is ac-

cessible for adjustment. From this moment on the g

button cannot be used to select other curve points. It

has no effect as long as the right-hand point is flash-

ing.

If you alter a fixed value you will see that all three

graph points shown on the screen move up or down

simultaneously.

4. Selecting the trim method

This is how it used to work:

All trims worked on the „Centre Trim“ principle. Cen-

tre Trim means that the end-points of the servo’s

travel are unchanged when you offset the centre of

the transmitter control’s travel (whether you move the

trim slider or offset the control centre through the

menu system).

Advantages of this method of trimming:

The end-point of the servo’s travel does not change

The transmitter controls have no „dead band“

A side-effect of this method of trimming is that the

associated servo behaves differently on either side of

centre if the trim is not central, i.e. depending on the

direction of movement of the stick. The diagram be-

low makes this clear:

If the stick is moved 10° away from centre, the result

is travel of about 23% to the left, and about 43% to

the right.

This is how Standard Trim works:

The second method of trimming - Standard Trims -

offsets the entire working range, i.e. the behaviour of

the stick stays the same in both directions. If the stick

is now moved 10° away from centre, servo travel to

either side is the same, namely approximately 33%.

This diagram also shows clearly the drawbacks to this

method of trimming:

On the left-hand side the stick has a dead band, i.e.

the associated servo reaches its end-stop (-100%) be-

fore the stick reaches its end-point. The last third of

the stick’s travel therefore produces no servo move-

ment.

On the right-hand side the servo only moves 70% of

its possible travel, because the stick cannot be moved

far enough in that direction.

This is how it works now:

You can select your preferred trim method. The de-

fault setting is Centre Trim, so if you wish to use

Standard Trims you must expressly make the change.

This is done in the Adjustment menus for the trans-

mitter control options.

Starting from the operating screen you reach the

transmitter control options by pressing x x. Pressing

x again opens the select field for the transmitter con-

trols. You can now use q/n or the Digi-adjustor to

select the control which you want to process. Finally

you open the options with the b button and select the

method of trimming. The menu will look like this:

CONTR D :COL.PITCHÄ

;TRIM TRAV

,CENTRE + 10%_

What you select here applies to all flight modes. The

top line would normally show the flight mode, and the

fact that it is blank is intended to remind you of this.

The g button opens the select field for the trim

method. You can select STANDARD or CENTRE us-

ing the q/n or y buttons.

The w button opens the trim travel adjust field.

Trim travel is independent of the travel of the trans-

mitter control which you have set; it always refers to

maximum possible travel of the control. The default

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