Trio-avionics EZ Altitude Control Manuel d'utilisateur

EZ Series Altitude Control Systems Operation and Installation Manual Trio Avionics Corporation Rev 1.9

10SERVOFAULT 3.5.5 Servo Fault This red message can be due to several factors based on sensors within the servo and will always cause an immediate

11“heartbeat” signal to the supervisory processor for a period of 65 milliseconds, the supervisory processor will unilaterally cut power to the safet

12If you have an EZ-2 or EZ-3 altitude hold system, you will also be required to connect the electronics control module to your pitot system. This a

136.0 Servo Installation Setup The servo unit incorporates important safety features: • The intern

14checking that the required range of elevator movement is available within the limits of the servo travel range, and that no “over center” condition

15Note: A longer elevator crank radius dictates a correspondingly longer radius at the drive end. The elevators must travel from elevator stop to el

16The control movements are so small that it takes very little slop in the system to make the airplane not track properly. It will simplify installa

17The servo Torque Control nut (the adjustment nut inside the servo on the output shaft) sets the override force - the force you will feel at the sti

18GAIN SET 40 Repeat step “a” above and verify correct elevator directional control is achieved. Pressing the LCD switch will advance to the TRIM DI

19SERVO DBAND 6 c. Execute a turn at a bank angle of approximately 15 degrees. If the altitude sags more than 30 feet after entering the turn the

2Notice and Warnings Warning: Any failure to comply with the following warnings can lead to property damage, and serious injury including death. A

20VS SET 500 VS SET 400 VS 400 VS SET 0 8.0 The EZ-2 / EZ-3 ALTITUDE CONTROL SYSTEMS with Climb and Descent capability. Section 8 describes the

21ALT HOLD MIN AS LIMITunder autopilot control, the pilot may adjust the rate by simply turning the encoder knob. The aircraft will then respond to

22Note: Because of the inertia of the airframe in any flight mode, the system cannot correct instantaneously. It is therefore very important that t

23PCSSELECTVSPCS SELECTAS the encoder to enter a 500 fpm climb and press the LCD switch to engage the servo. Once the aircraft is established in the

24NOTE: To enable a PCS climb or descent, the pilot must establish a vertical speed of at least 200 fpm while holding the remote disconnect switch d

25ELEVSET 670 9.0 The EZ-3 ALTITUDE CONTROL SYSTEM with Altitude Pre-select Section 9 describes the additional features of the EZ-3 system. The EZ-3

26BARO SET 2460 Once the setting is correct, press the LCD switch to put the system in the READY mode. The system is now calibrated and ready to use

271. From the READY mode, repeatedly pressing the encoder will toggle through the various mode screens as shown below (solid arrows). These screens

28VS SET 0 BARO ALT 2450 ALT PRSLCT7500 9.1.3 Enter Vertical Speed (VS) To enter a vertical speed, press the encoder switch to advance to the VS M

2910.0 Altitude Hold Wiring Diagram Altitude Hold Wiring Diagram Note: the +12VDC input (pins 12 and 22) should be sourced through

3Table of Contents Page Notice and Warnings ...

30ALT HOLD 11. 0 Automatic Trim The automatic trim is an optional feature that allows the altitude hold system to automatically adjust the aircraf

31

3212.0 Glossary of Terms Brightness A measure of the intensity of illumination on the LCD switch Contrast A measure of legibility of the

4SYSTEM TEST EZ Altitude Control System 1.0 Introduction Congratulations on choosing the EZ Altitude Control System. The EZ-1 System is designed

5READY ALT HOLD with a green ALT HOLD message on the LCD display. (At this time servo activation should be detected by resistance to manual yoke or s

6ALTUP ADJUSTALTDOWN ADJUST The system will then immediately release the elevators from servo control and enter the READY mode. Turning off power to

7BRITE SET GAIN SET 45 SERVO DBAND 6 CONTR SET If the pilot wishes to re-trim the aircraft without disconnecting the ALT HOLD, trim adjustments shoul

8G FORCE LIMIT TRIM SPEED 10 The TRIM SPEED setting is only available if the AUTO TRIM option is installed. The TRIM SPEED setting allows the pilot

9SERVO CLTCH SLIP SERVOCW LIMITSERVOCCW LIMITairframe designer’s limitation regarding use of an autopilot system in turbulent conditions. If an EZ al