Siemens L-828 manual General Troubleshooting Procedures

Page 44

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

Troubleshooting

 

 

 

This subsection provides general troubleshooting procedures.

 

3. General Troubleshooting

 

Procedures

 

 

 

 

 

 

 

 

 

 

 

 

 

Problem

 

 

Possible Cause

Corrective Action

 

 

1. Regulator not

Circuit breaker tripped

Turn off CCR using local control switch

 

 

turning on using

 

 

 

S1. Then turn on the CCR. Verify that

 

 

switch S1

 

 

 

nothing happens and that green LED

 

 

 

 

 

 

labeled REGULATOR ON is unlit. If these

 

 

 

 

 

 

conditions hold, then the circuit breaker

 

 

 

 

 

 

CB1 is tripped. Reset CB1 by switching on

 

 

 

 

 

 

breaker. If CB1 trips again, check and

 

 

 

 

 

 

replace fuses F1 and F2.

 

 

 

 

 

 

Use an AC voltmeter to probe signals.

 

 

 

 

 

 

Connect black lead on meter (common)

 

 

 

 

 

 

to earth ground lug on CCR.

 

 

 

 

 

 

Probe J3 terminals 4 and 6. Each should

 

 

 

 

 

 

read approximately 60 Vac. If they don’t

 

 

 

 

 

 

read 60 Vac, replace transformer T3.

 

 

 

 

 

 

Use an AC voltmeter to probe J3

 

 

 

 

 

 

terminals 1 and 3. Each should read

 

 

 

 

 

 

approximately 18 Vac. If they don’t read

 

 

 

 

 

 

18 Vac, replace transformer T4.

 

 

 

Control PCB

 

If J3 terminals 1 and 3 have normal

 

 

 

 

 

 

readings, the replace Control PCB, ribbon

 

 

 

 

 

 

cable, or Switch PCB, in that order.

 

 

2. Regulator does not

TB2 signals not working

Test signals to remote control TB2. If TB2

 

 

turn on using

 

 

 

signals do not work, repair external

 

 

remote control but

 

 

 

remote control switch or wiring.

 

 

operates using local

 

 

 

 

 

 

control switch S1

CCI wiring not connected to TB2

Check CCR wiring and replace fuse F3 on

 

 

 

 

 

 

terminal 8 for 120 Vac remote

the panel with a new ¼-amp slow-blow

 

 

 

control signal

fuse.

 

 

 

LEDs for 5-Step CCR or LEDs 1 and 3

Replace PCB.

 

 

 

for a 3-Step not lit

 

 

 

 

 

 

 

Check SCRs and wiring.

 

 

 

 

 

 

Replace SCR.

 

 

 

 

 

 

Continued on next page

 

2002 Siemens Airfield Solutions, Incorporated

96A0104B

Page 6-3

All rights reserved

Issued 6/02

 

Image 44
Contents Constant Current Regulators LC-Type 5, and 10 kW/6.6 A/60 Hz Record of Changes Rev Description EC No Checked Approved DateTable of Contents CCRs LC-Type 4, 7.5, and 10 kW/6.6 A/60 Hz Table of Contents List of Figures List of Tables L-828 CCRWarranties Disclaimers Safety Introduction Safety SymbolsSafety Symbols contd Qualified Personnel Intended Use Installation Installation contd Operation CCRs LC-Type 4, 7.5, and 10 kW/6.6 A/60 Hz Safety Description Introduction4, 7.5, and 10 kW CCRs are designed to Indicators Indicator PurposeCCRs LC-Type 4, 7.5, and 10 kW/6.6 A/60 Hz Description Contactor TransformersHz LC-Type L-828 CCRs 10 kW/6.6 a Required EquipmentInput Power Breaker Sizing SpecificationsRatings ClassStyle Power Factor Efficiency Reactive Loading Class Style Brightness Nominal Output PowerResistive Loading Class Style Step Nominal Output Allowable RangeTemperature Range Regulation Environmental Operating ConditionsRelative Humidity Altitude4340 W Lb kg WeightCCR Dimensions Section Installation Floor MountingRack Mounting Description Quantity Manufacturer Part NumberWiring Connections and Startup Rack Mounting contdWiring Connections Startup contd Remote Control Wiring 3-Step Wiring Connections Startup contd Remote on-command voltage Terminal Block TB2 Label FunctionIf you use 3-Step CCR Remote Intensity Connect CCI to… Step… If you use 5-Step CCR Remote IntensityWiring Connections TP9Wiring Connections Startup contd Calibrating Regulator Setting Up Regulator for Calibration Adjusting Output CurrentCCR S1 Position Ammeter Reading Potentiometer Adjusting Output Current contdAdjusting Overcurrent Adjusting Overcurrent contd Introduction Local Control If you set switch S1 Result is To the followingOperation Then Local Control ProceduresRemote Control Shutdown Procedure Maintenance Maintenance Schedule Interval Maintenance Task ActionShort-Circuit Test Open-Circuit Test Open-Circuit Test contd Troubleshooting Preliminary Troubleshooting Circuit Breaker/Fuses Description FunctionGeneral Troubleshooting Procedures General Troubleshooting Procedures contd Problem Possible Cause Corrective Action Regulator shuts VA-Indicator redDown from open Circuit protectionProblem Possible Cause Corrective Action VA-Indicator red LED light lit contdPart Number Description Quantity Introduction Using the Illustrated Parts ListParts 828 CCR 4-10 kW/6.6 a Part Ordering Code Input Voltage828 CCR General Assembly 4-10 kW/6.6 a Parts List 828 CCR General Assembly 4-10 kW/6.6 a Parts List contd LC-Type L-828 CCR Component Parts 1LC-Type L-828 CCR Component Parts 2 LC-Type L-828 CCR Component Parts 3 LC-Type L-828 CCR Component Parts 4of 828 CCR General Assembly 4-10 kW/6.6 aParts List contd CCR See -2. Refer below for the part numbers for the 7.5 kW See -2. Refer below for the part numbers for the 10 kW 828 CCR General Recommended Spare Parts KW/480 VacKW/208-240 Vac Part Number Description10 kW/208-240 Vac 10 kW/480 VacSection Wiring Schematics LC-Type L-828 CCR Internal Wiring Schematic Part 1 LC-Type L-828 CCR Internal Wiring Schematic Part 2

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.