L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz)

Installation

Adjusting Overcurrent (contd.)

2.See Figure 2-4. Turn switch S1 (6) to the highest brightness step, 5 for 5-step CCR or 100 for a 3-step CCR. Ammeter should read 6.6 amps.

NOTE: See Figure 3-7. Do not change the adjustment of R47 (7), since this not only will affect the output current of the CCR but the potentiometer adjustment levels for all other current levels.

3.Physically center the overcurrent potentiometer R48 (Figure 3-7, Item 8). While viewing the red overcurrent LED (Figure 2-4, Item 3) on the control panel, slowly turn R48 clockwise until the LED begins to glow. Then quickly turn control switch S1 (Figure 2-4, Item 6) to the next lower intensity step. This will turn the LED off because the current level is less.

NOTE: If the potentiometer R48 is turned too far, the CCR will shut down. If this should occur, return potentiometer R48 to the centered position and reset the CCR by momentarily turning off the CCR off and then back on.

4.While watching the overcurrent LED, return S1 to the highest intensity step, and time how long it takes for the overcurrent LED indicator to start to glow. It should take 3 ±1 seconds.

NOTE: If the LED comes on in less than 2 seconds, turn potentiometer R48 a slightly counterclockwise. If more than 4 seconds are required for the LED to light, turn R48 slightly clockwise. Repeat Step 4 until the correct time period (3 ±1 seconds) is obtained.

5.See Figure 3-7. Turn off the CCR and remove test leads from TP7 (1) and TP9 (2). The trip level for the overcurrent threshold is now calibrated for 6.93 amps.

2002 Siemens Airfield Solutions, Incorporated

96A0104B

Page 3-13

All rights reserved

Issued 6/02

 

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Siemens L-828 manual Adjusting Overcurrent contd
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L-828 specifications

The Siemens L-828 is a state-of-the-art aircraft communication and navigation system that is designed to enhance efficiency and safety in aviation operations. This system is equipped with a range of advanced features that cater to the evolving needs of modern air traffic management and avionics.

One of the standout characteristics of the L-828 is its versatile communication capabilities. It incorporates VHF and UHF radio systems, enabling flexible and reliable communication between pilots, air traffic controllers, and other aircraft. The system supports both voice communication and data link services, ensuring that critical information is exchanged seamlessly during flight operations.

In terms of navigation, the Siemens L-828 is equipped with cutting-edge Global Navigation Satellite System (GNSS) technology. This allows for precise positioning and navigation, essential for modern pilotage in complex airspace environments. With built-in performance monitoring, the system can also provide predictive analytics, which enhances situational awareness for pilots and ground controllers.

The architecture of the L-828 is designed for ease of integration with existing aircraft systems. Its modular design allows for straightforward upgrades and the incorporation of additional functionalities as aviation technology continues to evolve. This adaptability ensures that operators can extend the lifespan of their investment by easily implementing new features without requiring a complete system overhaul.

Another key feature of the Siemens L-828 is its robust cybersecurity measures. In an era where the threat of cyberattacks is growing, the system employs advanced encryption techniques and authentication protocols to safeguard sensitive communications and data. This emphasis on security ensures that both operational integrity and passenger safety are maintained.

Moreover, the Siemens L-828 has user-friendly interfaces that reduce pilot workload and enhance overall flight experience. With intuitive controls and clear displays, pilots can easily access critical information, thereby facilitating smoother and safer flight operations.

In conclusion, the Siemens L-828 represents a significant advancement in aviation communication and navigation technology. Its combination of versatile communication capabilities, advanced navigation systems, modular design, and heightened security protocols makes it a crucial tool for modern aircraft. As the aviation industry continues to evolve, systems like the L-828 will undoubtedly play an indispensable role in optimizing flight operations and ensuring safety in the skies.
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