Avidyne DFC90 Manuale di Installazione

1-4 System Overview GENERAL AUTOPILOT OPERATIONS The Digital Flight Control (DFC) DFC90 autopilot has been designed to be a retrofit digital auto

System Overview 1-5 PRIMARY LOCATION FOR BUG/TARGET SETTING The primary location for setting both the IAS and VS targets are via the dedicated k

1-6 System Overview ARMED VS ENGAGED MODES INDICATIONS The DFC-series of autopilots has readily distinguishable armed vs. engaged modes in order t

System Overview 1-7 MODE TRANSITION INDICATION Automatic transition from armed (cyan) to engaged (green) states is indicated by the cyan armed b

1-8 System Overview ENVELOPE PROTECTION (EP™) The DFC90 system provides speed-based Envelope Protection (EP™) (underspeed and overspeed warnings a

System Overview 1-9 Similarly, Envelope Protection (EP™) will provide high-speed protection and alerting near Vne. In this case, as Vne is appr

1-10 System Overview FULL-TIME ENVELOPE ALERTING (EA™) NOTE Envelope Alerting Requires Flap Input For the underspeed Full-Time Env

System Overview 1-11 NOTE Suppression of Full-time Envelope Alerting Full-time Envelope Alerting (EA™) is suppressed during very

1-12 System Overview bars present and no autopilot mode annunciators aside from the “AP READY” one along the top edge of the PFD. If an underspeed

System Overview 1-13 To disable Full-time Envelope Alerting (EA™), pull the autopilot circuit breaker. (* In cases of pre-Rel 8.0.4 Avidyne PFD

1-14 System Overview ENGAGEMENT AND HOLD LIMITS The DFC90 has maximum engagement limits beyond which the autopilot may not allow a mode to be sele

System Overview 1-15 COMPARATORS The DFC90 autopilot is always running comparators in the background. There are several types of comparators ru

1-16 System Overview AUTOPILOT ENGAGEMENT From a standby state (autopilot has power, “AP READY” displayed but no modes are engaged and the airplan

System Overview 1-17  Press the “AP” button on the autopilot control panel (servos will disconnect but the flight director will remain active)

1-18 System Overview The flight director command bars in a DFC90 autopilot are designed for easy use and improved performance during uncoupled aut

System Overview 1-19 PFD ANNUNCIATIONS The top strip of the PFD is dedicated for autopilot mode annunciators. Active modes are depicted in gree

Normal Startup Sequence 2-1 2 Normal Startup Sequence ...2-2 POWER CONSIDERATIONS ...

2-2 Normal Startup Sequence 2 Normal Startup Sequence POWER CONSIDERATIONS The DFC90 consumes 0.25A when no servos are in operation and up to 0.9

Normal Startup Sequence 2-3 PRE-FLIGHT TEST 1. Ensure “AP READY” is displayed on PFD annunciator strip 2. Press AP button on autopilot control

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2-4 Normal Startup Sequence NOTE Preflight Test Does Not Test Every Aspect of AP The Pre-Flight test of the DFC90 autopilot outlined

Climb-out/Enroute 3-1 3 Climb-out/Enroute ...3-2 NORMAL OPERATING MODES ...

3-2 Climb-out/Enroute 3 Climb-out/Enroute This section covers normal modes of the autopilot during climb-out and enroute operations as well as

Climb-out/Enroute 3-3 HEADING (HDG) MODE Heading mode is entered by pressing the “HDG” button on the autopilot control panel. The system will li

3-4 Climb-out/Enroute to a wind-corrected heading until the station signal is re-acquired and signal tracking can resume. For the condition when

Climb-out/Enroute 3-5 ALTITUDE HOLD (ALT) MODE Altitude Hold mode is entered by pressing the “ALT” button on the autopilot control panel. The sy

3-6 Climb-out/Enroute A secondary method is via the left knob on the Aspen PFD page. The autopilot modes annunciator indication is green “IAS”.

Climb-out/Enroute 3-7 NOTE Logical Combination of Commanded Targets A logical combination of commanded autopilot target

3-8 Climb-out/Enroute paired button. For example, for an IAS-based altitude capture, the IAS button can be pressed and held, and while that but

Climb-out/Enroute 3-9 STRAIGHT AND LEVEL NOTE Straight and Level Definition Pressing the “STRAIGHT AND LEVEL” button o

1-2 System Overview DFC90 Digital Autopilot | PILOT GUIDE TABLE OF CONTENTS 1 System Overview ...

3-10 Climb-out/Enroute Straight and Level mode can be entered from any autopilot state, including from the off position. NOTE Limitation of Ove

Climb-out/Enroute 3-11 The heading knob can be adjusted at any time (before or after entering pilot selectable intercept mode) and the system wil

3-12 Climb-out/Enroute CONTROL WHEEL STEERING MODE Control Wheel Steering (CWS) mode is entered by pressing the CWS button on the aircraft yoke

Approach Procedures 3-1 4 Approach Procedures ...4-2 GENERAL BEHAVIOR ...

4-2 Approach Procedures 4 Approach Procedures GENERAL BEHAVIOR The integrated DFC90 and PFD system is designed to take full advantage of the au

Approach Procedures 4-3 WAAS approaches are intended to flown in NAV APPR mode in the DFC90 system and thus the “Primary Nav” LSK must be set to

4-4 Approach Procedures must be pressed. If it is not manually changed to NAV, then an automatic switch will occur when/if a GPS glide slope sig

Approach Procedures 4-5 NON-WAAS GPS APPROACH (RNAV OR OVERLAY OR LNAV) □ Ensure the Primary Nav LSK is set to a GPS source and a GPS approach i

4-6 Approach Procedures LOCALIZER APPROACH To fly the complete published approach, select the approach and IAF desired, load and then activate t

Approach Procedures 4-7 ILS APPROACH INCLUDING GLIDE SLOPE INTERCEPT When flying a Vectors-To-Final approach, use the Heading knob and the “HDG”

ILS approach including glide slope intercept ... 4-7 Procedure Turn ILS or Localizers ...

4-8 Approach Procedures Glide slope will automatically arm if the following 4 conditions are met: 1. PFD Primary Nav LSK is set to VLOC1 or VLO

Approach Procedures 4-9 PROCEDURE TURN ILS OR LOCALIZERS The procedure for an ILS or Localizer with a procedure turn in a combined DFC90/430 syst

4-10 Approach Procedures BACK COURSE APPROACHES Always ensure the front course is set in the Selected Course window. The system will recognize

Abnormal Procedures 5-1 5 Abnormal Procedures ...5-2 GENERAL FAILURE MODE INFORMATION ...

5-2 Abnormal Procedures 5 Abnormal Procedures GENERAL FAILURE MODE INFORMATION The only failure modes that result in the loss of a DFC-series

Abnormal Procedures 5-3 LOSS OF PFD DISPLAY (AHRS STILL OPERATIONAL) Failure Indication: A loss of PFD display condition is identified by a dis

5-4 Abnormal Procedures LOSS OF PFD BEZEL BUTTONS AND KNOBS Failure Indication: A failure of the PFD bezel buttons/knobs is indicated by the dis

Abnormal Procedures 5-5 LOSS OF PFD DISPLAY AND BEZEL BUTTONS Failure Indication: A failure of the PFD display and bezel buttons is indicated b

5-6 Abnormal Procedures LOSS OF TURN COORDINATOR In Cirrus SR2X or Piper PA46 installations where the DFC90 is replacing a STec 55X autopilot, t

Abnormal Procedures 5-7 LOSS OF AHRS (SINGLE PFD EQUIPPED AIRCRAFT) Failure Indication: A failure of an AHRS is identified by Red-Xs over the a

5-8 Abnormal Procedures LOSS OF AIR DATA This scenario is only applicable to Avidyne PFD-equipped aircraft. Failure Indication: A failure of the

Abnormal Procedures 5-9 TOTAL LOSS OF PFD (SINGLE PFD EQUIPPED AIRCRAFT) Failure Indication: A total failure of the PFD is indicated by both th

5-10 Abnormal Procedures LOSS OF ENGINE Loss of engine does not affect the DFC90 operation but the DFC90 autopilot can be useful during loss of

Abnormal Procedures 5-11 OTHER ERROR MODES Autopilot failures that prevent any operation are annunciated across the center of the PFD mode ann

5-12 Abnormal Procedures If the autopilot does not conduct a successful automatic restart, consider attempting an autopilot restart by cycling t

Abnormal Procedures 5-13 BUILT-IN TEST (BIT) FAILURE Failure Indication: If the DFC-PFD system recognizes that the autopilot is invalid due to

5-14 Abnormal Procedures AHRS ALIGNING Failure Indication: If the PFD AHRS has not finishing aligning, a yellow “AUTOPILOT INOP AHRS ALIGNING”

Abnormal Procedures 5-15 NO COMMUNICATION WITH AUTOPILOT Failure Indication: If the PFD stops receiving data from the autopilot, a yellow “NO C

5-16 Abnormal Procedures TRIMMING UP/DOWN Failure Indication: If the DFC-PFD system recognizes that trim has been running for an excessive durat

Abnormal Procedures 5-17 GPSS INVALID Failure Indication: If the DFC-PFD system recognizes that the autopilot mode is GPSS but the roll steerin

System Overview 1-1 1 System Overview ...1-2 FUNCTIONAL OVERVIEW ...

5-18 Abnormal Procedures NAV INVALID Failure Indication: If the DFC-PFD system recognizes that the VHF lateral nav signal from the GPS Nav-Com i

Abnormal Procedures 5-19 GLIDE SLOPE INVALID Failure Indication: If the DFC-PFD system recognizes that the VHF vertical nav signal (glide slope

5-20 Abnormal Procedures TC FAIL In Cirrus SR2X or Piper PA46 installations where the DFC90 is replacing a STec 55X autopilot, the DFC90 will us

Abnormal Procedures 5-21 AHRS MISCOMP In Cirrus SR2X or Piper PA46 installations where the DFC90 is replacing a STec 55X autopilot, the DFC90 w

5-22 Abnormal Procedures NO PFD COMM Failure Indication: If the autopilot stops receiving data from the PFD, a yellow “NO PFD COMM” message is d

Abnormal Procedures 5-23 MSR FAIL Failure Indication: If the autopilot computer determines that it can no longer read from, or write to the int

5-24 Abnormal Procedures AUDIO FAIL Failure Indication: If the autopilot computer determines that it has corrupted or missing audio files, a yel

Abnormal Procedures 5-25 SERVO LIMIT Pilot Indication: If the autopilot computer determines that the roll-axis servo limit has been reached, a

5-26 Abnormal Procedures BANK LIMIT Pilot Indication: If the autopilot computer determines that the aircraft has exceeded the POH bank limit, a

Limitations and Performance 6-1 6 Limitations and Performance ...6-2 LIMITATIONS ...

1-2 System Overview 1 System Overview This manual assumes that the pilot is appropriately licensed, is proficient in operation of the aircraft an

Limitations and Performance 6-2 6 Limitations and Performance LIMITATIONS See the individual aircraft Pilot Operating Handbook (POH) Supplemen

6-3 Limitations and Performance PFD Version AP Version* Wired for Flap Position? Operational Notes Avidyne 8.0.6 or 8.0.5 or

Limitations and Performance 6-2 PFD Version AP Version* Wired for Flap Position? Operational Notes No Audio Fail alert No Servo Limit alert MSR F

6-3 Limitations and Performance GENERAL PERFORMANCE – CIRRUS AIRCRAFT The input forces required for roll-axis control surface actuation are demo

Limitations and Performance 6-2 PERFORMANCE IN PITCH TRIM-ONLY AIRCRAFT As noted earlier, all modes and behaviors described in this manual work

Index 1 Index Annunciations Aural Alerts, 1-5 Mode Annunciator Strip, 1-6 PFD Annunciators, 1-19 Approaches WAAS, 4-2 GPS, 4-5 VOR, 4-5

Website There is a dedicated website that provides more information on this product at http://www.dfc90.com FAQs http://www.avidyne.com/downloads

System Overview 1-3 FUNCTIONAL OVERVIEW The Avidyne DFC90 autopilot supports the following functions: Flight Director Heading Capture/Hold NAV

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