Parameter Type Of Gyro; Adjusting Gyro Suppression - Multiplex ROYALpro 7 Manual De Instrucciones

pro
ROYAL

Parameter Type of Gyro

13.7.1.
pro
The ROYAL caters for two types of gyro, and you
can select either of them.
a. Gyro type: Damping
Application:
In the case of damping (normal) gyros the gyro gain is
varied via a separate control channel.
Gyro gain is adjusted via the parameter Damping. For
each flight phase a separate % value can be set for
gyro gain. In this way the gyro can be set up very accu-
rately to match any flight task / flight phase.
b. Gyro type: Heading
Application:
In the case of Heading gyros the gain and the be-
haviour (damping / heading) are influenced by a sepa-
rate control channel.
For each flight phase it is possible to adjust gyro gain
and the mode of operation separately, enabling you to
set up the gyro to match each flight phase accurately.
The gyro works in Heading mode if you set gyro gain
to a value in the range -1% to -100%:
Type of Gyro Heading
Heading – -65%
Suppression
Fig. 13.7.1.1. Heading gyro in Heading mode
If you set gyro gain to a value within the range -1% ...
-100% (Heading mode active), the yaw trim is auto-
matically switched off. Trim changes affect a separate
heading / yaw trim memory. This trim value is used in
every flight phase which works in Heading mode, in
order to allow the pilot to carry out minor corrections
(temperature drift). The display of this trim can be
found in Status displays 1 to 3 for the Yaw stick.
!
The Parameter Trim in the menu for the transmit-
ter control Yaw continues to display only the trim, ac-
cording to the flight phase in the operational mode
Damping.
At the same time the static tail rotor compensation
mixer for the tail rotor is automatically switched off.
The gyro works in Damping mode if you set a value
for gyro gain in the range +1% and +100%:
Type of Gyro Heading
Damping – +65%
Suppression
Fig. 13.7.1.2. Heading gyro in Damping mode
In Control mode gyro gain can only be varied manu-
ally using the "Gyro" transmitter control (default set-
ting: Slider E). In this case the gain must be set to 0%.
However, the screen shows the code letter of the gyro
control instead of OFF or 0%:
Type of Gyro Heading
Control –
Suppression
Fig. 13.7.1.3. Heading gyro in Control mode
52
OFF
OFF
E__
OFF
!
Note: checking Heading / Damping mode
When operating a Heading gyro system in Heading
mode, you must check - before you fly the model -
that the gyro is working in the appropriate mode with
the gain value you have set:
a. Activate a flight phase in which the gain is set
within the range -1% ... -100% (Heading).
b. Move the yaw / tail rotor stick to either end-point,
then return it to the neutral (centre) position:
If the yaw / tail rotor servo immediately returns to
its starting point, the gyro is operating in Damping
mode:
You need to reverse the direction of rotation of
the Gyro channel!
13.7.2.

Adjusting gyro suppression

Many gyros reduce their effect (gain) when the pilot
gives a deliberate yaw command. Without this sup-
pression the gyro would also damp out intentional yaw
movements. If you are using a gyro without its own
integral automatic suppression (read the appropriate
notes in the gyro system operating instructions!), then
you should activate this function.
The gyro effect is suppressed in proportion to the de-
flection of the "Yaw" stick.
Gyro type Heading
Damping – +75%
Suppression
Fig. 13.7.2.1. Heading gyro in Damping mode
If you set Suppression to 100%, then gyro gain (sen-
sitivity) is reduced to zero (= gyro OFF) at full travel of
the "Yaw" control.
If you set Suppression to 200%, gyro gain is reduced
to zero (= gyro OFF) when the yaw stick is moved to
half its full travel.
If you set Suppression to 50%, gyro gain remains at
50% of the set value at full travel of the yaw stick.
In all flight phases, gyro suppression acts with the
same value in all gyro modes: Control, Damping,
Heading.
!
Exception:
If you set gyro gain to a value within the range -1% ...
-100% (= Heading), gyro gain is not suppressed (re-
duced).
!
Caution!
Before flying a model it is vital to check that the gyro is
working properly, i.e. that it is set up to counteract any
rotational movement. If set incorrectly, the gyro will
amplify any unwanted yawing motion of the helicopter,
rendering it uncontrollable. Please read the operating
instructions supplied with the gyro system!
100%