GRAUPNER 32032, Programming Manual

Page: 223 / 324

223 Detail program description - Profi -trim | Helicopters
"Point" column
The lines of the column "Mixer" were used to select
one or mixers. Now, in the "Point" column, the
reference points to be trimmed will be set.
To do this, use the selection keys on the left or right
touch pad to move to the desired value fi eld. Then
briefl y tap the center
SET key of the right touch pad …
Mixer Point Phase
Slide1
free
free
free
None
None
None
L 1
1
1
1
Pitch
L
L
L
If a undefi ned point is selected – in the basic version,
only points "L" and "H" are set – the respective
regulator will remain ineffective.
The point offset (in a maximum range of about
±12 %) for the selected mixer will simultaneously be
displayed in the curve diagrams of the »
Helicopter
mixer « menu so that the offset can also be checked
visually.
Phase
The rightmost column is used, if desired, to determine
which programmed fl ight phase the given regulator
is to be active. The number preceding fl ight phase
names, in the example "1" (Normal)", are based
on the phase numbers as found in the »
Phase
assignment « menu on page 148:
Mixer Point Phase
Slide1
free
free
free
None
None
None
L 1
1
1
1
Pitch
L
L
L
However, the current position of the regulator
will be – contrary to the corresponding fi xed-wing
program – set to a new zero point when …
by a change of fl ight phase, individual or all trim •
controls become active or
the given trim control is erased or
•
meanwhile the function assigned in the "Mixer" •
column is to be changed.
In all of these cases, the current regulator position will
be stored and automatically overridden, i.e. adopted
into the curve characteristic, by the pre-programmed
curve points specifi ed by the »
Channel 1 curve «
and » Helicopter mixer « menus. In this manner it
is possible to simultaneously optimize up to four
arbitrary curve points during the fl ight.
The memory storage option described here is, for
example, useful during the fi rst test fl ights of a new
model as this permits the "fl own" fl ight corrections to
be immediately recorded in the program.
However, in order to have a clearly defi ned reference
point prior to the fi rst time a store is done, it is important
to put all regulators into their middle positions.
But always be careful that, after repeated stores,
servo travel is not too severely restricted on one side.
Check and correct the control linkage if necessary.
Sometimes, despite an optimal basic setting for the
model, it becomes necessary to temporarily change
reference points, for example, when the weather
has changed and the motor requires a short-term
correction or even when the muffl er gets a leak
unexpectedly, etc. Of course, in all of these cases,
the corrected settings should not be stored via
the Profi trim option. Storage can be prevented by
ensuring that the regulator is in its middle position
before activation or deactivation.
Note:
Yet another point, independent of this, can be
regulated via the "Trim function" through use of
the selection keys. This is described in detail along
with the programming of 8-point curves in section
»
Channel 1 curve « on page 131.