Operation Manual

PROFI mc 4000PROFI mc 4000
Version 2.0
12
1: Norm.flight
CONTR C :AILERON Ä
;DIFFER.
,A4-D'* + 50%_
The „up“ arrow next to the analogue switch
means that aileron differential is fully effective
when the spoiler control is set to its forward end-
point. The suppression takes effect when you
move the stick back (towards you).
If you are used to „reversed“ controls (stick for-
wards - spoilers extended) you must open the
switch field by pressing the g button and re-
verse the direction of operation by pressing the
y button. The arrow will then point the other
way.
Of special interest
for helicopters
9. Idle-up with idle adjustment
and SLOW
This is how it used to work:
The only selectable option for the IDLE-UP transmit-
ter control was MAXIMUM FORWARD or BACK. The
end-points were always 0% (= motor stopped) and
100% (= full throttle).
This is how it works now:
The IDLE-UP control has the following new options:
• TRAVEL adjustable separately for each side
• CENTRE variable
• SLOW variable separately for each direction
The „MAXIMUM FORWARD/BACK“ option has been
removed, hence the following tip:
'' TIP:
The MAXIMUM FORWARD/BACK option no longer
exists. If you want to alter the full-throttle setting for
the idle-up transmitter control, you must reverse the
travel for the idle-up control.
With these new options the PROFI mc 4000 can
now:
ll slowly advance the throttle if the throttle has
been released using idle-up;
ll limit throttle to an idle value when idle-up is
„pulled right back“;
ll „expand“ the bottom end of idle-up, so that you
have finer control over the throttle setting for
starting the motor.
However, first we would like to show you how the
throttle control for helicopters works in the
PROFI mc 4000 based on diagrams and explana-
tions.
In the next-but-one section we will deal with how the
individual adjustments are made.
This is how the throttle works in a heli-
copter for the AUTO-ROTATION mode
The flight mode AUTO-ROTATION has top priority.
All other settings are over-ridden by the values which
are set here.
The throttle servo receives a fixed value when AUTO-
ROTATION is selected. This fixed value is set as fol-
lows:
1. Switch on AUTO-ROTATION
This is done in the base types with
the switch S04.
2. Select the THROTTLE CURVE control option
for COLLECTIVE PITCH.
Starting from the operating screen you press the
button sequence x x x. A control name
should now be flashing, and you can select the
COLLECTIVE PITCH transmitter control using
the q/n buttons or the Digi-adjustor.
Open the options field by pressing the b button
and search for THROTTLE CURVE.
The menu should now look like this:
5: Autorotation
CONTR D :COL.PITCHÄ
;THR.CURVE
, OFF open_
Press the w button twice, and the last line
changes to:
FIXED VAL.+ 15%_
The % value is already flashing, so you can im-
mediately set your chosen value using q/n or
the Digi-adjustor.
k k takes you back to the operating screen
from this menu point.
This is how DIRECT THROTTLE works:
Direct throttle has second-highest priority after AUTO-
ROTATION.
If the direct throttle switch is at the ON position, then
the throttle servo is controlled directly and exclusively
by the IDLE-UP control. The position of the collective
pitch stick has no effect on the throttle servo.
In the base types this function is assigned to slider F.
Please note:
AUTO-ROTATION must not be switched on!