68
Program description:
Transmitter controls
Channel 1 curve
Control characteristic for throttle / airbrakes
C h a n n e l 1 C U R V E
I n p u t
- 6 0 %
C u r v e
O u t p u t
- 6 0 %
o f f
P o i n t
?
®
O
U
T
P
U
T
-
+
1
10
0
In the default state of the mc-22s transmitter this
menu is initially suppressed. To activate it, move to
the »
Suppress codes
« menu (see page 49). Alterna-
tively, move to the »
Basic settings
« menu (see page
117) and select “yes” for the Expert mode; this must
be carried out
before
you set up a new model memo-
ry.
In most cases the throttle response or the effect of
the airbrakes or spoilers is not linear, and in this
menu you can set up a curve to compensate for the
non-linearity. The menu enables you to change the
control characteristic of the throttle / airbrake stick
, re-
gardless of whether the stick function controls a sing-
le servo or multiple servos via various mixers.
The control curve can be defi ned by up to fi ve points,
termed “reference points” in the following section,
which can be positioned at any point along the stick
travel.
The on-screen graph considerably simplifi es the pro-
cess of setting and adjusting the reference points. In
the basic software set-up three reference points de-
fi ne a linear “curve” as the base setting, namely the
two end-points at the bottom end of the stick travel “L”
(low = -100% travel) and the top end of the stick tra-
vel “H” (high = +100% travel), together with point “1”,
which is exactly in the centre of the stick travel.
Setting and erasing reference points
You will fi nd a vertical line in the graph, and you can
shift this between the two end-points “L” and “H” by
moving the relevant transmitter control (throttle / air-
brake stick). The current stick position is also dis-
played in numeric form in the “Input” line (-100% to
+100%). The point at which this line crosses the cur-
ve is termed the “Output”, and can be varied at the re-
ference points within the range -125% to +125%. This
control signal affects all subsequent mixer and coup-
ling functions. In the example above the stick is at
-60% control travel, and also generates an output sig-
nal of -60%, since the curve is linear.
Between the two end-points “L” and “H” you can now
insert a maximum of three reference points. The mini-
mum spacing between two adjacent reference points
is around 30% control travel.
If you now move the stick, the inverse video questi-
on mark immediately appears, and you can place
a reference point at the corresponding stick positi-
on by pressing the rotary control. Up to two further
points can be placed between the extreme points “L”
and “H”; the order in which you place them is not sig-
nifi cant, as the reference points are automatically re-
numbered sequentially from left to right in any case.
Example:
C h a n n e l 1 C U R V E
I n p u t
+ 9 0 %
C u r v e
O u t p u t
+ 9 0 %
o f f
P o i n t H
+ 1 0 0 %
®
O
U
T
P
U
T
-
+
2
10
0
1
3
Note:
In this example the stick is located in the immediate
vicinity of the right reference point “H”. That is why the
“point” value
“+100%”
is in inverse video (black back-
ground).
If you wish to erase one of the set reference points
1 to 3, move the stick close to the reference point in
question. The reference point number and the asso-
ciated reference point value now appear in the “Point”
line. Press the
CLEAR
button to erase that point.
Example - erasing reference point 3:
C h a n n e l 1 C U R V E
I n p u t
+ 5 4 %
C u r v e
O u t p u t
+ 5 4 %
o f f
P o i n t 3
+ 5 4 %
®
O
U
T
P
U
T
-
+
2
10
0
1
3
When the point has been erased, the inverse questi-
on mark re-appears after “Point”.
Changing the reference point values
Move the stick to the reference point “L (low), 1 ... 3
or H (high)” which you wish to change. The number
and the current curve value of this point are display-
ed on the screen. You can now use the rotary control
to change the momentary curve value in the inverse
fi eld within the range -125% to +125%, without affec-
ting the adjacent reference points.
Example:
C h a n n e l 1 C U R V E
I n p u t
+ 0 %
C u r v e
O u t p u t
+ 9 0 %
o f f
P o i n t 2
+ 9 0 %
®
O
U
T
P
U
T
-
+
2
10
0
1
3
As an example the reference point “2” has been set to
+90% in this screen shot.
Pressing the
CLEAR
button erases the reference
point.
Note:
If the stick is not set to the exact reference point, ple-
ase note that the percentage value in the “Output” line
always refers to the momentary stick position.
Summary of Contents for MC-22S
Page 1: ...1 mc 22s GB mc 22s 3D Rotary Programming System Programming manual ...
Page 33: ...33 Digital trims ...
Page 55: ...55 Program description Base setup model ...
Page 77: ...77 Program description Flight phases ...
Page 89: ...89 Program description Mixers ...
Page 174: ...174 ...
Page 175: ...175 ...
Page 176: ...176 ...
Page 177: ...177 ...
Page 178: ...178 ...