GRAUPNER mx-24s, Programming Manual

Page: 79 / 216

79
Column 3 “offset”
The centre point of each transmitter control, i. e. its
zero point, can be changed in this column; the adjust-
ment range is -125% to +125%.
Pressing CLEAR resets the offset value to 0%.
Column 4 “-”
In this column you set the control travel within the ran-
ge -125% to +125%. At the same time you can use
the software to reverse the direction of effect of the
transmitter control. In contrast to altering servo travel,
changing the transmitter travel setting affects all mi-
xer and coupling inputs, i. e. all servos which are infl u-
enced by the transmitter control concerned.
Control travel can be adjusted symmetrically ( SYM ) to
both sides, or asymmetrically ( ASY ). In the latter case
you must move the stick in the appropriate direction
before altering the setting. When the fi eld is highligh-
ted, you can change the setting for that side of centre
using the rotary control.
Pressing CLEAR resets the control travel to 100%.
Tip:
If you hold the rotary control pressed in and press the
HELP button, the screen switches to the » Servo dis-
play « menu, where you can check the new settings
directly. Pressing the rotary control or the ESC button
again returns you to your starting point.
Column 5 “-time+”
A delay within the range 0 to 9.9 sec. can be pro-
grammed for all function inputs 5 … 12, either sym-
metrically or asymmetrically, in a similar manner to
the facilities in the »
Stick mode » menu (see page
76). Use the rotary control to select SYM or ASY in
the right-hand column, then press the rotary control.
If you opt for an asymmetrical delay setting, you must
move the transmitter control in question to the appro-
priate end-point (or move the switch in the correct di-
rection), so that you can set the delay separately for
each side of neutral using the rotary control.
Note:
Please refer to the section entitled “Controlling timed
sequences” on page 182 for more ideas on how to
use sequences of this type.
Applications:
1. Retractable undercarriage with wheel doors (cont-
rolled by two servos):
• Extend: doors fast, wheels slow;
• Retract: wheels fast, doors slow.
Example:
Wheel doors:
Servo 11
Wheels: Servo 12
0% +100%+100% 0.0 0.0
10% +120%+ 95% 2.5 0.0
0.0 2.5
ASY SYM
ASY
SYM SEL
«Normal »
SEL
0%
-15% +106%+110%
+100%+100% 0.0 0.0
Input free
Input
8
8 Input
Input
12
11
10
9
offset – –time+
free
You can also adjust the behaviour of servos 11 and
12 using the transmitter control menu points “Off-
set” and “Travel”.
2. The C1 stick is to be used alternately for control-
ling an electric motor and airbrakes on a powered
glider.
The (minimum) features should be as follows:
• Speed controller: Receiver output 1
• Ailerons: Receiver outputs 2 + 5
• Elevator: Receiver output 3
• Airbrakes: Receiver output 6
(If output 6 is already in use for another purpo-
se, the next vacant receiver output socket must be
used for the airbrake servo.)
In the » Model type « menu select “Motor on C1
forward / back” and “2 AIL” to suit your prefe-
rences, and leave or place the airbrake stick at “In-
put 1”. Set the appropriate Offset value, again in
line with your preferences (i. e. forward / back).
Now program (initially) two fl ight phases with the
names, say, “normal” and “landing”. In the »
Phase
settings « menu set the “Motor” to “no” in the ap-
propriate line of the “Landing” fl ight phase.
In the » Transmitter control adjust « leave the
fl ight phase specifi c input 6 at “free” in the “normal”
fl ight phase, but turn the rotary control to adjust
the Offset value of Input 6 in the direction of + or -
until the airbrakes are “retracted” again.
Now move to the “Landing” fl ight phase, assign
“Transmitter control 1” to Input 6, but leave the Off-
set value at 0%. You may need to reverse the ac-
tion of the transmitter control in the “Travel” column
by setting the prefi x to “-”.
Use a similar procedure in the fl ight phase speci-
fi c »
Wing mixers « menu to enter the settings for
the two mixers “Brake 5 aileron” and “Brake
3 elevator”, and check the brake offset setting for
these mixers in the »
Model type « menu.
Program description: Transmitter controls