EGPWS LINE MAINTENANCE MANUAL

3.8.6 FLAP POSITION DISCRETES

Up to four flap position discretes are typically supplied from the flap selector handle switch.

Type:

Supplied by Flap selector handle switch.

Signal Status:

Flap position selected.

Fault monitoring: Depending on the installation, activation of more than one, or none of these discretes for more than 30 seconds will result in a Flap Unreasonable indication.

Level 6 Audio readout

Flap Position Discrete #1

Selected =>

“Flap 1 True”

 

Not Selected =>

“Flap 1 False”

Flap Position Discrete #2

Selected =>

“Flap 2 True”

 

Not Selected =>

“Flap 2 False”

Flap Position Discrete #3

Selected =>

“Flap 3

True”

 

Not Selected =>

“Flap 3

False”

Flap Position Discrete #4

Selected =>

“Flap 4

True”

 

Not Selected =>

“Flap 4

False”

3.8.7 SELF-TEST DISCRETE

Type:

Supplied by momentary actuated cockpit self-test switch

Signal Status:

Self-Test or Normal

Fault monitoring: Activation of this input continuously for more than 60 seconds will result in the "Self-Test Invalid” fault which will cause a GPWS INOP indication.

Note: This input is used to start and stop the Level 6 Self-Test, there is no audio output for this discrete in Level 6.

3.8.8 STEEP APPROACH DISCRETES

To activate Steep Approach, both of the Steep Approach discretes must be selected. Discrete #1 should be enabled if Steep Approach is to be used, and can be permanently enabled. Discrete #2 should be selected in flight when starting a steep approach, it should not be permanently selected. On ground Self-Test is inhibited if Steep Approach is active.

3.8.8.1 STEEP APPROACH DISCRETE #1 (MK V AND MK VII ONLY)

Type:

Steep Approach Enabled

 

 

Signal Status:

Steep Approach Enabled or Disabled

 

 

 

 

 

 

 

 

Level 6 Audio readout

Steep Approach Discrete #1

 

Enabled =>

“Steep Approach Enabled”

 

Disabled =>

“Steep Approach Disabled”

 

 

 

CAGE CODE: 97896

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

REV: G

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Honeywell MK VIII, MK XXII manual Flap Position Discretes, SELF-TEST Discrete, Steep Approach Discretes

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.