Trio Avionics EZ Altitude Control - Manual (Page 18)

18
GAIN
SET
40
Repeat step “a” above and verify correct elevator directional control is
achieved.
Pressing the LCD switch will advance to the TRIM DIRECTION screen if
the system has the AUTO TRIM option installed
6.6.2 Setting the Trim Motor Direction – This procedure is only available
on models equipped with the auto-trim option.
When in this mode, the LCD message will be amber and read “TRIM DIR NORM”
or “TRIM DIR REV”. You should verify that when the ENCODER is rotated in a
CLOCKWISE direction the trim system is moved so as to make the airplane
CLIMB. If this is not the case, momentarily press the ENCODER switch to
reverse the sense of the command to the trim motor.
Pressing the LCD switch will advance to the RESTORE FACTORY DEFAULTS
screen.
6.6.3 Restore Factory Defaults Procedure - The display will now be
amber and display “RESTOR DEFLTS”. If you want to return all internal gains
and variables to the factory settings perform the following steps, otherwise press
the LCD switch momentarily an proceed to step 7.0
The display will now be amber and display “RESTOR DEFLTS”. To activate the
restoration, once again press and hold the ENCODER switch followed by
pressing and holding the LCD switch. The display will change from a steady
amber color to a flashing green color. Continue to hold the two switches for
approximately 10 seconds until the flashing green screen turns to a steady green
screen. Once this has occurred restoration of the factory settings is complete.
To advance to step 7.0, press the LCD switch momentarily.
NOTE. Releasing either switch during the flashing green display will cause the
restoration to be inhibited. If this occurs, simply recycle power to the system and
start the procedure again at step 6.6.1
7.0
SYSTEM GAIN and SERVO DEADBAND Adjustment
The System Gain and Servo Deadband Settings optimize the EZ altitude control system
tracking performance for your individual airplane
7.1 SYSTEM GAIN
The system gain adjustment allows the EZ altitude control system to be tailored to your
individual airplane. The factory setting is a nominal value which should give good
performance in most airplanes. However, to achieve best performance in your airplane
the SYSTEM GAIN adjustment should be optimized.
To optimize the gain setting in your airplane, perform the following steps:
a. Enter the ALTITUDE HOLD mode in smooth air at
your normal cruise speed after verifying the pitch
trim is properly adjusted for level flight.
b. Press the ENCODER knob for more than 3 seconds
until the SYSTEM GAIN setting is displayed.