GRAUPNER MX-16S Programming Manual page 53

to eliminate the possibility of errors if unused transmitter
controls are operated accidentally.
You can alter the effective end-points of an assigned
switch by adjusting servo travel as described in the next
section.
After you have assigned an external switch, the screen
displays either the transmitter control number or the
switch number, followed by a switch symbol which indi-
cates the direction of operation, e.g.:
Column 3 "-Travel+"
Hold the SELECT button pressed in, and use the right-
hand rocker button to select one of the inputs E5, Gyr,
E8 or Lim.
Use the right-hand rocker button to select SYM or ASY
in the "-Travel+" column, and press the SELECT button
to activate travel adjustment:
You can now use the right-hand rocker button to set the
control travel within the range -125% to +125%, either
symmetrically (SYM) to both sides, or asymmetrically
(ASY). At the same time you can use the software to re-
verse the direction of effect of the transmitter control. If
you wish to make asymmetrical adjustments, you must
move the transmitter control or switch in the appropria-
te direction before altering the setting. When the fi eld is
highlighted, you can change the setting.
Pressing CLEAR resets the control travel in the highligh-
ted fi eld to 100%.
Important:
In contrast to servo travel adjustments, changing the
transmitter travel setting affects all mixer and coupling
inputs, i.e. all servos which are affected by that transmit-
ter control.
"Throttle"
In principle all transmitter controls (rotary proportio-
nal knob, INC / DEC buttons) and switches present on
the transmitter can be assigned to the individual inputs
within the Helicopter program.
However, please note that some inputs available in the
»Control settings« menu are already pre-defi ned for
helicopter-specifi c functions, and for this reason cannot
be used without restriction.
For example, the receiver sequence printed on page 33
shows that the throttle servo (or the speed controller of
an electric-powered model helicopter) must be connec-
ted to receiver output "6", i.e. control channel "6" is re-
served for motor speed control.
However, in contrast to a fi xed-wing aircraft, the thrott-
le servo or speed controller is not directly controlled
by the throttle stick or any other transmitter control, but
via a complex mixer system – see »Heli mixer« menu,
starting on page 66. The "throttle limit function" (descri-
bed on the next page) also has an infl uence on this mi-
xer system.
Assigning a transmitter control or switch in the "Thrott-
le" line, or its supplementary control signal, would only
unnecessarily "confuse" this complex mixer system. For
this reason the "Throttle" input MUST always be left
"free" when you are programming a model helicop-
ter.
Control settings – Model helicopter 53