GRAUPNER mz-24 PRO, Programming Manual

Page: 166 / 240

Gyro/governor
Settings for the gyro and governor
In the basic transmitter display, use your finger or the
provided stylus to touch the gear icon labeled "F":
Touch
The display switches to the blue function menu. Touch
the menu item "
Gyr/Gover ".
Touch
Phase-dependent settings for the gyro and gov-
ernor
The here mentioned sub-menu offers the possibility
of phase specific settings. Recognizable on the top
left side of the display in green color is displayed the
phase name. As standard is displayed the name of the
phase 1, which is indicated by the name "NORMAL"
or "PHASE 1". As soon as you will have defined one
or many other phases in the "
PHASE " menu, you will
be able to switch among those phases. Activate the
corresponding switch or switches if desired to switch
between the phases.
"Gyro suppression" line
Notice
This option may normally not be used for current
standard gyro systems. You therefore need to
consult your gyro setting instructions since other-
wise you may make it impossible to fly your helicopter.
Nonetheless, this option was retained to satisfy all re-
quirements and conventions.
This option can influence the effect of the gyro sensor
(gyroscope) as the tail rotor control stick is moved, as-
suming that a gyro system is used in which the gyro's
effect can be set by the transmitter using an additional
channel, channel 7 in the
Graupner/JR and Graupner
remote-control system . The gyro suppression reduces
the gyro's effect in a linear manner in proportion to the
deflection of the tail rotor control stick corresponding
to the set value. If the gyro has not been suppressed
(at a value of 0%), the gyro's effect remains indepen-
dent of the control stick deflection.
The gyro's effect can however be additionally varied
smoothly (depending on the phase if desired) between
a minimum and maximum using a control assigned in
the "Gyro" line in the "
CTL Set " sub-menu, for exam-
ple with one of the side proportional dials SL1 or SL2.
The maximum gyro gain occurs at the full deflection of
the control and is zero at the opposite limit.
In the program, you are of course free to restrict the
effective range to both sides by setting the control
travel.
Depending on the position of the control, the gyro
gain is as follows in response to the full deflection of
the tail rotor control control stick:
"Momentary control position
minus
the value of the gyro suppression".
If the gyro is in the neutral position and gyro suppres-
sion is set, the gyro's effect is accordingly reduced
from 100% to zero with increasing tail rotor excursion.
For values between 100% and a maximum of 199%,
full gyro suppression is achievable before full tail rotor
excursion (depending on the control position) (see the
figure after the next).
With the
Graupner/JR -Gyro NEJ-120 BB, No. 3277,
both the bottom and top value are set: control 1 sets
the
minimum gyro gain in the bottom position of the
servo, control 2 sets the maximum effect in the top
end position of the servo. The switch between these
two values occurs approximately in the center of the
servo travel.
The gyro systems PIEZO 900, PIEZO 2000 and PIEZO
3000 contrastingly feature proportional, infinitely vari-
able adjustment of gyro gain (see the following exam-
ple graphs).
As an example, the option to configure phase-specific
– and static – gyro gain gives you the opportunity to
exploit maximum stabilization for normal, slow flying,
but to reduce gyro gain for fast circuits and aerobat-
ics.
166 Function menu | Helicopter model - Gyro/Gover