EGPWS LINE MAINTENANCE MANUAL

3.8.12 GND GLIDESLOPE INHIBIT DISCRETE

Type:

Switch for inhibit of Glideslope mode

Signal Status:

Glideslope Inhibit or Not Inhibit

Fault monitoring: Mode 5 will be disabled and “Glideslope” will not be enunciated during cockpit Self-Test and the long vocabulary test if inhibited.

Level 6 Audio readout

Glideslope Inhibit Discrete

Inhibit =>

“Glideslope Inhibit True”

Not Inhibit =>

“Glideslope Inhibit False”

3.8.13 +28 V GLIDESLOPE INHIBIT DISCRETE

Type:

Switch for inhibit of Glideslope mode

Signal Status:

Glideslope Inhibit or Not Inhibit

Fault monitoring: Mode 5 will be disabled and “Glideslope” will not be enunciated during cockpit Self-Test and the long vocabulary test if inhibited.

Level 6 Audio readout

+28V Glideslope Inhibit Discrete

Inhibit =>

“28V Glideslope Inhibit True”

Not Inhibit =>

“28V Glideslope Inhibit

 

False”

3.8.14 GND GLIDESLOPE CANCEL DISCRETE

Type:

Supplied by momentarily actuated cockpit Glideslope mode manual inhibit switch.

Signal Status:

Glideslope is canceled if glideslope function is active

Fault monitoring: Activation of this input for more than 15 seconds will result in the ‘Glideslope Cancel Invalid’ fault which will cause a GPWS INOP indication. Typically, the Glideslope cancel can only be selected below 2000 feet AGL. However, some configurations only allow it below 1000 feet AGL.

Level 6 Audio readout

Glideslope Cancel Discrete

Cancel =>

“Glideslope Canceled”

Normal =>

“Glideslope Enabled”

3.8.15 DECISION HEIGHT DISCRETE

Type:

Decision Height Bug switch

 

Signal Status:

Less than Decision Height or Greater than Decision Height

 

 

 

 

 

 

 

Level 6 Audio readout

 

DH Discrete

Less Than DH =>

“Below DH”

Greater Than DH =>

“Above DH”

CAGE CODE: 97896

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

REV: G

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Honeywell MK XXII GND Glideslope Inhibit Discrete, 13 +28 V Glideslope Inhibit Discrete, GND Glideslope Cancel Discrete

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.