Honeywell MK VIII, MK XXII manual Fault Example Reason

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EGPWS LINE MAINTENANCE MANUAL

TABLE 3-3: CURRENT FAULTS - EXTERNAL (EXAMPLES)

FAULT

EXAMPLE

REASON

ARINC 429 Bus Fault

GPS BUS 1 INACTIVE

 

 

ARINC 429 Signal

ILS BUS 1 GLIDESLOPE FAULT FW

Fault

 

 

 

ARINC 429 Signal

ILS BUS 1 GLIDESLOPE FAULT UPD

Fault

 

 

 

Analog Signal Fault

RADIO ALTIMETER 1 WIRING

 

FAULT

 

AOA UNREASONABLE FAULT

 

 

Discrete Input Faults

FLAP SWITCH FAULT

 

 

 

GEAR SWITCH FAULT

 

 

 

AUDIO CANCEL INVALID

 

TERRAIN INHIBIT INVALID

 

GPWS INHIBIT INVALID

 

ALL MODES INHIBIT INVALID

GLIDESLOPE CANCEL INVALID

ILS SELECT INVALID

FLAP ANGLE UNREASONABLE

RANGE UNREASONABLE

SELF-TEST INVALID

AIR GROUND INVALID

MOMENTARY TERRAIN

SELECT 1 (or 2) INVALID

No expected input labels received for more than 4 seconds

The SSM of the input data indicates Failure/Warning

Note: Only the RS232 present Status will report the ‘FW” part of the fault.

The input label is not meeting the required update rate.

Note: Only the RS232 present Status will report the ‘UPD” part of the fault.

Open wire monitoring has detected no connection.

AOA is not within 4 degrees of waterline during takeoff roll (60-90 knots). Incorrect Aircraft Configuration or AOA potentiometer is Worn.

Indicates Landing Flaps for > 60 seconds with an airspeed > 250 knots, or indicates Not Landing Flaps for more than 2 seconds with “Too Low Flaps” message below 100 feet. Indicates Landing Gear for > 60 seconds with an airspeed > 290 knots, or indicates Not Landing Gear for more than 2 seconds with “Too Low Gear” message below 100 feet. Discrete selected for > 30 seconds.

Discrete selected for > 60 seconds. Discrete selected for > 60 seconds. Discrete configured to suppress both audio and visual outputs and selected for > 60 seconds.

Or if aircraft type is configured for ‘Audio Inhibit Monitoring’ then activation for > 60 seconds to inhibit only audio will cause this fault.

Discrete selected for > 15 seconds. More than 1 discrete selected for > 5 seconds.

Invalid combination selected for > 30 seconds.

No valid range provided for > 5 seconds. Discrete selected for > 60 seconds.

Indicates On-Ground for > 60 seconds with an airspeed > 290 knots.

Selected for > 15 seconds.

CAGE CODE: 97896

SCALE: NONE SIZE: A DWG NO.: 060-4199-180

REV: G

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Contents Egpws Line Maintenance Manual Drawn Revisions DescriptionDate ApprovedEFF PT 14A Disp USE Table of Contents Maintenance Practices 10.1 Applicability Introduction ScopeMK V Egpwc Part Numbers MK VII Egpwc Part Numbers Reference Documents MK VI, MK VIII, MKDescription and Operation General System Description Enhanced Ground Proximity Warning SystemOperation Mode 1 Excessive Descent Rate Mode 2A/2B Terrain Closure RateMode 3 Descent After Takeoff Mode 4A/4B/4C Unsafe Terrain ClearanceMode 6 Advisory Callouts Optional Mode 5 Descent below GlideslopeCallout Description Smart Five Hundred Mode 7 Windshear Detection Optional for MK V/VII only Excessive Bank Angle CalloutTail Strike Callout Envelope Modulation not Available in MK VI/VIIITerrain Alerting and Display Optional Runway DatabaseTerrain and Obstacle Database Geometric Altitude GPS Required Peaks Display Mode OptionalWeather Radar Autotilt MK V and MK VII only Stabilized Approach Monitor Option for MK V and MK VII only System Display and AnnunciationAltimeter Monitor Option for MK V and MK VII only Long Landing Monitor Option for MK V and MK VII only LOW Airspeed Monitor MK V Boeing 737NG onlyBelow Lamp FormatSystem Operation During AN Inop Condition System Maintenance Maintenance PhilosophyBIT Description Front Panel Test Connector Egpwc Front PanelEgpws Status LED’S Front Panel SELF-TEST Interface MK V and MK VII onlySELF-TEST Functions Troubleshooting Guide Fault Isolation Troubleshooting GeneralExternal Computer Fault Fail Corrective Action Level 1 SELF-TEST GO/NO GO Test SELF-TEST PreambleShort Level 1 SELF-TEST Gpws INHIBITED, Terrain InhibitedGpws Inhibited SELF-TEST InhibitedLevel 2 SELF-TEST Current Faults Long Level 1 SELF-TESTCurrent Faults Internal Current Faults ExternalFault Example Reason Bussignal Fault BUS Wiring FaultFlap Switch Fault Gear Switch FaultProgram PIN Read Error System or Mode Tasked FailedCallouts Option Invalid Audio Menu InvalidSheet 31 Terrain AWARENESS-POSITION Error Terrain Clearance Floor Position ErrorTerrain Awareness no Valid Latitude Terrain Awareness no Valid LongitudeLevel 3 SELF-TEST System Configuration Following Information is Given in the Level 3 SELF-TESTIRS 1 Attitude Mode Selected Egpws Line Maintenance Manual Level 4 SELF-TEST Fault History Following Information is Given in the Level 4 SELF-TESTLevel 6 SELF-TEST Discrete Input Test Level 5 SELF-TEST Alert HistoryFollowing Information is Given in the Level 5 SELF-TEST GND Landing Gear Discrete Arinc 552 / ALT 55 Radio Altitude Validity Flag Discretes3 +28V Landing Gear Discrete GND Landing Flap Discrete or Flap Override 5 +28V Landing Flap or Flap Override DiscreteFlap Position Discretes SELF-TEST DiscreteSteep Approach Discretes Steep Approach Discrete #1 MK V and MK VII onlySteep Approach Discrete #2 GND ILS Tuned Discrete10 +28V ILS Tuned Discrete Glideslope Validity DiscretesGND Glideslope Cancel Discrete GND Glideslope Inhibit Discrete13 +28 V Glideslope Inhibit Discrete Decision Height DiscreteMode 6 Volume Control Discrete Callouts Enable Discrete MK V and MK VII onlyGND Audio SUPPRESSINHIBIT/ALL Modes Inhibit Discrete 19 +28 V Audio SUPPRESSINHIBIT/ALL Modes Inhibit DiscreteAOA Validity Discretes MK V and MK VII only Display Select DiscretesTerrain Awareness & TCF Inhibit Simulator Reposition MK V and MK VII onlyWeather Radar ON/OFF Localizer Validity Discretes MK V and MK VII onlyAttitude Validity Discretes Airspeed Validity DiscreteBarometric Altitude Rate Validity Discretes Acceleration SELF-TEST in Progress DiscreteLongitudinal Acceleration Validity Discrete Normal Acceleration Validity DiscretePLI Deselect Switch Discretes MK V and MK VII only Magnetic Heading Validity DiscreteAOA Vane Heater Discrete Autopilot Disconnect DiscretesTactical Select Discrete Altitude Alert DiscreteCorrected Barometric Altitude Validity Discrete Momentary Flap Override DiscreteWeight on Wheels Discrete Raas Enable Discrete MK V and MK VII onlyGpws Inhibit Discrete Raas Inhibit Discrete MK V and MK VII onlyLOW Airspeed Monitor Inhibit Discrete MK V 737NG only Maintenance Practices General Database UpdateDatabase Update Frequency Loading a DatabaseFlight History Downloading Download ProcedureObtaining AN Egpws Flight History Download Card Transcription of the Pcmcia Card Via email aerotechsupport@honeywell.comSheet 54 CFG CAT 7 92 T CUW command/data string REMOVAL/INSTALLATION 6.1 Egpwc Removal InstallationConfiguration Module MK VI, MK VIII, and MK Xxii only Servicing GeneralADJUSTMENT/TEST Adjustment Display Switching Relays if InstalledEgpws Ground Tests INSPECTION/CHECK General CLEANING/PAINTING GeneralRepairs General Appendix a Winviews Appendix B Troubleshooting DO’S and do NOT’S Appendix C Raas Maintenance Messages Aural & Displayed Maint Function MessageMaint Function Displayed Message RAAS-NA-xxxx amber RAAS-RTO green RAAS-INOP amberAppendix D Stabilized Approach Monitor Maintenance Messages Self-Test Level 3 RCD Part NumberAppendix E Altimeter Monitor Maintenance Messages Self-Test Level 1 Flaps Monitor Inop Appendix G Long Landing Monitor Maintenance Messages Appendix H LOW Airspeed Monitor Maintenance Messages Self-Test Level 3 Airspeed Low Inhibited Annunciated at

MK VIII, MK V, MK XXII, MK VII, MK VI specifications

Honeywell's range of control systems, particularly the MK VI, MK VIII, MK VII, V, and XXII, are pivotal innovations that have revolutionized process automation and control in various industries, especially in power generation and oil and gas sectors. Each of these systems comes with unique features and technologies to enhance operational efficiency, safety, and reliability.

The Honeywell MK VI control system is renowned for its ability to provide effective plant control and management tools, featuring advanced operator interfaces and robust hardware components. It employs a modular design, which allows for easy scalability and integration into existing infrastructure. The MK VI is equipped with Ethernet-based communication protocols, ensuring high-speed data transfer and enabling seamless connectivity with other systems.

The MK VIII system takes automation a step further, emphasizing enhanced performance and reliability. With its built-in redundancy and advanced diagnostics, the MK VIII minimizes downtime and optimizes maintenance efforts. Its powerful software tools are designed to improve operator decision-making, providing critical insights into plant operations and trends.

Honeywell’s MK VII control system is designed for high-performance applications, especially in gas turbine environments. It features advanced control algorithms, enabling precise control of emissions and improving overall efficiency. The MK VII stands out with its ability to maintain optimal performance under varying load conditions, ensuring reliability in challenging operational scenarios.

The MK V system is one of Honeywell's legacy products, known for its simple and user-friendly interface. Despite its age, it continues to be a dependable choice for many plants. It offers solid performance with basic control functions and has been a reliable backbone for older facilities transitioning into newer technologies.

Lastly, the MK XXII brings a modern twist to control systems with its focus on cybersecurity and data analytics. This system takes advantage of big data and IoT technologies, providing enhanced visibility of operations through real-time monitoring and predictive maintenance capabilities. The MK XXII ensures that plants not only operate efficiently but also mitigate risks associated with cyber threats.

Overall, Honeywell's series of control systems showcases their commitment to innovation and reliability in process automation, catering to the diverse needs of contemporary industrial environments. Each system is designed with specific features and capabilities that address the evolving challenges of process control, ensuring that users can achieve optimal performance and safety in their operations.
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