EGPWS LINE MAINTENANCE MANUAL

3.3 LEVEL 1 SELF-TEST - GO/NO GO TEST

Level 1 Self-Test provides an overview of the current operational capability of the EGPWS. It is divided into 3 functions - the Preamble, Short Level 1 Self-Test, and Long Level 1 Self-Test as described in the following sections.

During Level 1 Self-Test, a Short Cancel terminates the Self-Test level and “CURRENT FAULTS” is enunciated to indicate activation of Level 2 Self-Test. A Long Cancel terminates the entire Self-Test sequence exiting Self-Test.

3.3.1 SELF-TEST PREAMBLE

When Self-Test is initiated, the Preamble is performed. This first step in the Self-Test process checks for configuration errors before starting the Short or Long Level 1 Self-Test process. If any are detected, the condition is enunciated and the Self-Test process is automatically terminated (inhibited). These are listed below with the associated probable cause and action.

TABLE 3-1: POSSIBLE PREAMBLE RESULTS

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POSSIBLE SELF-TEST PREAMBLE RESULTS “PROGRAM PIN PARITY ERROR” (MK V or MK VII only)

Wiring error in the program pins.

Verify wiring to each program pin. Verify ODD parity selected.

“AIRCRAFT TYPE INVALID” (MK V or MK VII only)

Wiring error to the Aircraft Type program pins.

Verify wiring to the Aircraft Type program pins.

“CONFIGURATION TYPE INVALID” (MK VI, MK VIII, MK XXII only)

The programmed configuration type is not a valid configuration.

Correct and reprogram the Configuration Module (see Maintenance Practices section)

“AIRCRAFT CONFIGURATION DATA BASE FAILED” (MK V or MK VII only)

EGPWC internal Configuration database error.

Pull power to the EGPWS for one minute and cycle power to clear all potential faults before removing or replacing the EGPWC for repair (see Removal/Installation section)

APPLICATION DATA BASE FAILED” (MK VI, MK VIII, MK XXII only) EGPWC internal Application database error.

Pull power to the EGPWS for one minute and cycle power to clear all potential faults before removing or replacing the EGPWC for repair (see Removal/Installation section)

“AIRCRAFT CONFIGURATION DATA BASE CRC FAILED” (MK V or MK VII only)

EGPWC internal configuration database error.

Pull power to the EGPWS for one minute and cycle power to clear all potential faults before removing or replacing the EGPWC for repair (see Removal/Installation section)

APPLICATION DATA BASE CRC FAILED” (MK VI, MK VIII, MK XXII only) EGPWC internal Application database error.

Pull power to the EGPWS for one minute and cycle power to clear all potential faults before removing or replacing the EGPWC for repair (see Removal/Installation section)

“CONFIGURATION MODULE READ ERROR” (MK VI, MK VIII, MK XXII only)

The Configuration Module is faulty.

Verify Configuration Module connections. Cycle power to the EGPWC. If the problem persists, reprogram the Configuration Module. IF the condition persist, replace the Configuration Module. See Removal/Installation section.

CAGE CODE: 97896

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

REV: G

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Honeywell MK VIII, MK XXII manual Level 1 SELF-TEST GO/NO GO Test, SELF-TEST Preamble

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.