Trio Avionics Pro Pilot - Manual (Page 15)

Trio Pro Pilot Manual 3.8
15
Roll (H NAV) & Pitch (V NAV) Servo Activation
The H NAV and V NAV pushbuttons activate the roll
and pitch servos, respectively. When the H or V LED
is unlighted, the respective servo is inactive and that
autopilot function is disconnected from the control
system. When the LEDs are illuminated
, the Pro Pilot
is engaged and providing control signals to the Pitch
and Roll servos.
The roll servo is activated (or deactivated) by pressing
the H NAV pushbutton momentarily.
The pitch servo is activated (or deactivated) by
pressing the V NAV pushbutton momentarily.
The servos may be operated independently of each
other.
Remote Disconnect Switch
A remote servo disconnect switch (not supplied) is strongly recommended and should also be mounted
on the aircraft control stick. Pressing the remote disconnect button momentarily will immediately
disconnect both the pitch and roll servo, freeing the aircraft controls for manual operation. This same
remote disconnect switch also provides an important additional functionality called Pilot Command
Steering (PCS) which is used for both for horizontal and vertical navigation.
Note: While it is not recommended, the user may wire a separate remote disconnect switch for
independent control of each servo. See the wiring diagram in the back of this manual.
Rotary Encoder - Pushbutton Switch
The black knob in the center of the control head implements three important functional control
mechanisms.
1. It can be rotated for inputting or changing selections or inputs
2. Pressing the knob activates a momentary switch
3. In a single operation it may be pushed in and rotated at the same time.
Each of these provides varying functions, depending upon which mode of operation has been selected
with either the H MODE or V MODE pushbuttons. Pressing the V MODE button will allow the encoder to
change parameters associated with the altitude control, while pressing the H MODE button will allow
encoder adjustment of functions associated with horizontal navigation.
The encoder switch is used in conjunction with the CONFIGURATION or PREFERENCE modes to
change various settings. These are described in the setup menus (Chapter 9) of the manual.
The Display Arrow
An arrow is centered in the top line of the display. The arrow
indicates which functions (H MODE or V MODE) the rotary
encoder (and its pushbutton) will control when it is operated.
 When the arrow points to the left, the encoder will control the H MODE functions.
 When the arrow points to the right, the encoder will control the V MODE functions.