107
Program description - Servo adjustment
Column 4, “– trv +”
S1
S2
S3
Rev cent
+
trv
0%
0%
0%
100%
100%
100%
100%
100%
100%
0%
0%
100%
100%
100%
100%
S4
S5
This column is used to set servo travel symmetrically or
asymmetrically for each side. The setting range is 0 …
150 % of normal servo travel. The values set are based
on the settings that have been made for the “midpoint”
column.
To create a symmetric travel path, i. e. control-side
independent travel, the respective control (stick, pro-
portional control or switch) is to be put into a position
which covers travel to both sides of the marked frame.
Note:
It may be necessary to rst assign a control
attached to one of the control channels 5 … 8
or 5 … 12. If necessary, this is to be done in
the »Control adjust« menu, see page 112 or 116.
To set asymmetric travel, the respective control (stick,
proportional control or switch) is to be moved to the
side on which the marked frame only includes the value
to be changed.
The value setting is activated with a brief tap on the
centre SET key of the right four-way button. The value
field is shown highlighted. Values can be changed with
the selection keys of the right four-way button. Com-
plete the entry with a tap on the centre SET key of the
right four-way button.
A simultaneous tap on the or keys of the right
four-way button (CLEAR) will reset the changed pa-
rameter displayed in inverse video back to “100 %”.
Important:
In contrast to settings made with the »Con-
trol adjust« menu, all settings made in this
menu affect exclusively the respective servo,
independent of how the control signal for this servo is
produced, i. e. directly by a stick or by way of any
mixer functions.
The adjacent figure shows
and example of a side-de-
pendent servo setting, -50 %
and +150 %.
Transmitter control travel
Servo travel
Column 5 “– lim +”
The “– lim +” column is reached by moving the marker
frame, with the selection keys of the left or right four-
ay button, to the right beyond the “– travel +” column:
S1
S2
S3
Rev cent
+
lim
0%
0%
0%
150%
150%
150%
150%
150%
150%
0%
0%
150%
150%
150%
150%
S4
S5
To create a symmetric limit, i. e. control-side independ-
ent limit, the respective control (stick, proportional con-
trol or switch) is to be put into a position such that the
marker frame covers both sides of the travel setting.
To set asymmetric travel, the respective control (stick,
proportional control or switch) is to be moved to the
side where it is to be set such that the marker frame
only includes the value to be changed.
Note:
You may rst need to assign a transmitter
control to a servo connected to one of the
control channels 5 … 8 or 5 … 12 in the
»Control adjust« menu; see the sections starting on
pages 112 and 116.
A simultaneous tap on the or keys of the right
four-way button (CLEAR) will reset the entry field value
displayed in inverse video back to “0 %”.
Example:
A servo is controlled separately by two controls over
a mixer and but, for model-specic reasons, must
only be operated over a servo travel path of 100 %
because, for example, the rudder would mechanically
collide with the elevator if moved more than 100 %.
As long as only one control is used at a time, this is
no problem. But this does become a problem when
the signals are summed by the simultaneous use of
both controls (e. g. aileron and rudder) to total travel
in excess of 100 %. The linkage and servos could be
strained excessively …
To prevent this, the travel should certainly be limited
by way of an individual travel limit. In the case of the
rudder used in the example, this would be a value
slightly less than 100 % – because it is assumed the
rudder would collide at 100 %.
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