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Siemens General Troubleshooting, Procedures, L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz

Models: L-828

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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
		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

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Siemens manual General Troubleshooting, Procedures, L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz

Contents

L-828Constant Current Regulators LC-Type 4, 7.5, and 10 kW/6.6 A/60 HzIssued: August 16, Rev. B: June 7, Document No. 96A0104Record of Changes PageDescription EC NoTable of Contents Safety DescriptionTable of Contents Installation Operation MaintenanceTroubleshooting Parts Wiring Schematics L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz List of Figures List of TablesTable of Contents L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz WarrantiesWarranties Warranties DisclaimersL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Section 1 Safety Safety1. Introduction 2. Safety Symbols L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Safety Symbols contd 3. Qualified PersonnelSafety L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz 4. Intended Use 5. InstallationSafety L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Installation contd 6. OperationSafety L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz 8.Maintenance and RepairSafety Section 2 Description Description1. Introduction L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz1. Introduction contd 2.L-828CCR Monitoring OptionsOptional Scanning Monitor Interface Optional Scanning Monitor Ready3. Indicators IndicatorL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Description4.Theory of Operation Introduction Silicon Control Rectifiers SCRsL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz DescriptionContactor Transformers5. 60 Hz LC-Type L-828CCRs 4-10kW/6.6 A: Required6.Input Power Breaker Sizing 7. SpecificationsRatings ClassStyle Power Factor Efficiency Reactive Loading Resistive LoadingNominal Output Power L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzTemperature Range Regulation Environmental Operating ConditionsRelative Humidity AltitudeBuilt-InTrue RMS-ReadingAmmeter Input Wire Size Temperature RiseOvercurrent Protection Maximum Safe Overload Input VoltagesWeight CCR DimensionsL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz DescriptionSection Installation Installation1.Introduction 2.Unpacking 3.Installation Lifting CCR Mounting CCRRack Mounting InstallationL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz ItemWiring Connections and Startup Rack Mounting contdInstallation L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Wiring Connections and Startup contdInstallation Installation Figure 3-4Remote Control Wiring 3-StepFigure 3-5Remote Control Wiring 5-Step L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzInstallation Wiring Connections and Startup contdFigure 3-6Input/Output Wiring L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzInstallation Wiring Connections and Startup contdL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Terminal Block TB2 LabelInstallation Wiring Connections and Startup contdL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz If you use 3-StepCCR Remote IntensityWiring Connections and Startup contdInstallation L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzCalibrating Regulator IntroductionInstallation Wiring Connections and Startup contdSetting Up Regulator for Calibration Adjusting Output CurrentInstallation L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzAdjusting Output Current contd Adjusting OvercurrentInstallation L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Adjusting Overcurrent contdInstallation Section 4 Operation Operation1. Introduction 2. Local Control L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz2. Local Control Procedures 3. Remote Control 4. Shutdown ProcedureIf you set switch S1 L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzSection 5 Maintenance MaintenanceL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz 1. Introduction2. Maintenance Schedule MaintenanceMaintenance Task L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzShort-CircuitTest Open-CircuitTest Maintenance2. Maintenance Schedule L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzOpen-CircuitTest contd MaintenanceL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Section 6 Troubleshooting TroubleshootingL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz 1. Introduction2.Preliminary Troubleshooting TroubleshootingL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Circuit Breaker/Fuses3. General Troubleshooting ProceduresTroubleshooting L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz 4.General Troubleshooting Procedures contdTroubleshooting Troubleshooting 4.General Troubleshooting Procedures contdProblem L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzTroubleshooting 4.General Troubleshooting Procedures contdProblem 7. W VA-Indicatorred1.Introduction 2.Using the Illustrated Parts List Section 7 PartsParts L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzParts 3.L-828CCR 4-10kW/6.6 A Part Ordering CodeL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz 35B0462 L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzParts 35A0343 L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzParts L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Parts44D1475 47A0113 47A0108 49A0084 35A0438 53A0198 53A0212 53A0412-60 47A0117L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Parts35A0343 35A0290 44D1476-1 44D1476-2 32A0025 35B0462 35B0462-480 35B0463 35B0463-480 35B0464L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Parts33A0013 44B1712P 28A0011 28A0015 44A4824-1 Figure 7-2 LC-Type L-828CCR Component Parts 4ofAssembly 4-10kW/6.6 A Parts List contd4. L-828CCR General L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzAssembly 4-10kW/6.6 A Parts List contdL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz PartsAssembly 4-10kW/6.6 A Parts List contdL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz PartsAssembly 4-10kW/6.6 A Parts List contdL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz PartsAssembly 4-10kW/6.6 A Parts List contdL-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz Parts5.Recommended Spare Parts Recommended Spare Parts 4 kW/208-240VacRecommended Spare Parts 4 kW/480 Vac7.5 kW/480 Vac 10 kW/208-240Vac10 kW/480 Vac L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzSection Wiring Schematics Wiring SchematicsWiring Schematics L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzWiring Schematics L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 HzTBS4 TBS4Wiring Schematics L-828CCRs LC-Type4, 7.5, and 10 kW/6.6 A/60 Hz