Trio Avionics Pro Pilot - Manual (Page 80)

Trio Pro Pilot Manual 3.8
80
Chapter 19
Alerts, Warnings and Alarms
The Pro Pilot employs a number of sensors to monitor proper operation in the control electronics and the
servos. When it detects a possible problem it will notify the pilot via messages on the display screen
and, if appropriate, via an audible alarm.
Alerts
Alerts notify the pilot when a non-critical event has occurred.
 Servo Disconnect – Sounds a three-beep- tone whenever the servo is disconnected
intentionally or unintentionally.
 BARO SET – Requests the pilot to confirm the correct baro altitude before beginning a climb
or descent.
 Arrival at a Destination Altitude – Sounds a single-beep tone and displays the message
“ALT CAPTURE” for 5 seconds. The display then reads ALT HLD.
 Trim Messages – The display will present TRIM UP REQD or TRIM DN REQD when the
autopilot is engaged and the aircraft is out of trim. The pilot should adjust the aircraft trim.
 VS ERR - The Vertical Speed error will appear when there is conflict between the Vertical
Speed direction and the Altitude that has been selected. For instance, if the pilot dials in a
500 foot per minute descent but enters a destination altitude above the current altitude the
servo will not engage and the error message will appear.
Warnings
Warnings alert the pilot of potential problems that may require action
 NO GPS – Indicates that the GPS signal has been lost. In this instance, the Pro Pilot will
continue to keep the wings level, and continue using the barometric data for altitude control,
but has no lateral navigation information.
 NO FLT PLN – GPS is available but no flight plan or GOTO has been entered. The Pro Pilot
will enter the Course (CRS) mode and will fly a pilot selected course over the ground.
 CLUTCH SLIP - If the clutch slips for more than 3 seconds the message CLUTCH SLIP will
appear. This warning may appear in severe turbulence, or in extreme out-of-trim conditions,
if the servo must pull hard enough on the elevator that it causes the clutch to slip. If this
happens frequently in more benign conditions, it suggests that the operator should consider
tightening the servo slip clutch.
Alarms
 G FORCE LIMIT – The system has detected that the aircraft has experienced a “G” force of
+/- 1 G deviation beyond the normal gravitational constant. Displays a flashing G FORCE
LIMIT message, sounds a three-beep tone and the servos will disconnect.
 I/O ERROR – This indicates a communication problem in the system, usually caused by a
wiring error or a component failure. The servos will disconnect and a three beep tone will
sound.
 SERVO CW LIM – This will occur if the pilot pulls hard on the controls to slip the pitch servo
clutch and force the servo crank arm to its clockwise limit. It will also occur if the servo is
engaged while the elevator is in an extreme position. The servos will disconnect and an
alarm will sound.
 SERVO CCW LIM – Same as above, but occurs when the servo crank arm is forced to its
counterclockwise limit.