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Agilent Technologies 5746A Setting up the Master Unit, Setting up the Slave Units, Remote Sensing

Models: 5751A 5744A 5743A 5750A 5749A 5752A 5747A 5742A 5748A 5741A 5745A 5746A

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				+S
				-S
				Twisted
	-S	+S		pair
	-S	+S	+V	As short as possible
	MASTER		+V	As short as possible
	MASTER			+S
	POWER SUPPLY -V			Twisted
	POWER SUPPLY -V			pair
	J1-25
		Parallel
		Current Program
	J1-8 J1-12 J1-10
	SLAVE		+V
	POWER SUPPLY		-V	-S
	-S	+S	-V	Twisted
	-S	+S		Twisted
				pair
				-S
				+S

Remote Sensing

Installation 2

LOAD

One of the units operates as a master and the remaining units are slaves. The slave units operate as controlled current sources following the master output current. In remote operation, only the master unit can be programmed by the computer while the slave units may be connected to the computer for voltage, current and status readback only.

It is recommended that each unit supplies only up to 95% of its current rating because of the imbalance that may be caused by cabling and connections voltage drops.

Setting up the Master Unit

Connect the sensing circuit for either local or remote sensing as shown in the previous figures. Set the master unit output voltage to the desired voltage. Program the current limit to the desired load current limit divided by the number of parallel units. During operation, the master unit operates in constant voltage mode, regulating the load voltage at the programmed output voltage.

Setting up the Slave Units

Set the rear panel setup switch SW1 position 2 to it’s up position. Connect J1 pin 10 (Current Program) of the slave unit to J1 pin 25 (Parallel) of the master unit. Also connect a short between J1 pin 8 and J1 pin 12. The output voltage of the slave units should be programmed higher than the output voltage of the master unit to prevent interference with the master unit’s control. The current limit of each unit should be programmed to the desired load current limit divided by the number of parallel units.

Series N5700 User’s Guide

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Agilent Technologies 5746A, 5752A, 5744A, 5743A, 5748A Setting up the Master Unit, Setting up the Slave Units, Remote Sensing

Contents

User’s Guide Agilent Technologies, Inc Legal NoticesOn supply Off supply Safety NoticesFrame or chassis terminal This Book Contents 116 113118 124Quick Reference System Features Agilent N5700 DC Power Supplies At a GlanceOutput Features Model Voltage Current Range Programmable FunctionsModel Ratings Front Panel At a Glance OCP indicator LAN indicatorLimit indicator Fine indicatorRear Panel At a Glance SW1 Setup Switch J2 Sense ConnectorEnable/Disable control Remote sense + Local sense + Not usedJ1 Analog Programming Connector Installation General Information AccessoriesModels Items SuppliedSafety Considerations Installing the UnitInspecting the Unit EnvironmentThan 6 mm into the sides of the unit Rack InstallationCleaning Power cord, resulting in fire Connecting the Line CordInput Connections for 750W units Input Connections for 1500W unitsInstallation Tightened Wire SizeShorted, whichever is greater For 5 a For 10 a For 20A For 50A For 150ALoad Connections for 6V to 60V Models Output voltage of the power supplyPrevent loosening the connections or bending the bus-bars Cross Section ResistanceLoad Connections for 80V to 600V Models Wire Size10 mm 0.39 TorqueOutput Voltage Sensing Load wiresPlug Type Local SensingRemote Sensing Multiple Loads Load ConsiderationsInductive Loads Output Noise and Impedance EffectsGrounding the Output Parallel ConnectionsConnected in parallel Local SensingRemote Sensing Setting up the Master UnitSetting up the Slave Units Setting the Over-Current Protection Setting the Over-Voltage ProtectionSeries Connections Connected in seriesSeparated and floated from each other Local Sensing Remote SensingVoltage of the power supply J1 Connector ConnectionsMating Plug Extraction toolOperating the Power Supply Locally Turn-On Check-Out On check-out procedureBefore Check-Out Constant Voltage CheckOCP Check UVL CheckConstant Current Check Normal Operation Constant Voltage ModeConstant Current Mode CV/CC Signal CV/CC Mode CrossoverOver-Voltage Protection Limit the sink current to less than 10mAOver-Current Protection Under-Voltage LimitPower-Fail Protection Over-Temperature ProtectionFront Panel Lock-Out SYSTCOMMRLST, it cannot be unlocked from the front panelOUT on button Output On/Off ControlsSafe-Start and Auto-Restart Output Shut-Off TerminalsSW1 switch ENA+/ENA- pins Output Display Prot Indicator Enable/Disable TerminalsSW1 switch SO Signal Level Output Display Analog Programming of Output Voltage and Current Power Supply OK SignalDaisy-Chained Output Shut-down Sense terminal, as it may damage the unitVoltage Programming of Output Voltage and Current Analog Programming Control TerminalsDown default SW1 switch Voltage ProgrammingResistance Programming of Output Voltage and Current Current ProgrammingExternal Monitoring of Output Voltage and Current Down default J1 pin Voltage Monitor Current MonitorPage Automation-Ready CD-ROM included with this product Operating the Power Supply RemotelyAutomation-Ready CD-ROM that is shipped with your product Connecting to the InterfacesGpib Interface Visa address is USB023912055serialnumber0INSTR USB InterfaceLAN Interface An example of a hostname Connecting to a Site LANPrevious settings Connecting to a Private LANCAT5 Crossover Cable InstrumentEthernet Connection Monitoring Using the Web ServerLAN Communication Using Sockets Using TelnetConfiguring the LAN Parameters By the subnet mask setting Factory-shipped non-volatile LAN settings Using the Setup UtilityFactory-shipped LAN Settings Series N5700 User’s Guide Syntax Scpi Commands an IntroductionMultiple Commands in a Message Message Unit Commands from Different SubsystemsQueries Common CommandsCommand Terminators Numeric Parameters Parameter TypesSuffixes and Multipliers Response Data TypesSubsystem is in the Initiated state Scpi Command CompletionDevice Clear Language Reference Scpi Command Description Scpi Command SummarySubsystem Commands Command Description Common CommandsCommands will generate an error Calibration CommandsCALibrateSTATe Onoff ,password CALibrateSTATe? Measure CommandsOUTPutSTATe Onoff OUTPutSTATe? Output CommandsModel V rating Source CommandsMin. low limit Max. low limit WTG Generation Status CommandsBit Value Bit Position1024 256 Bit Name1024 512 STATusQUEStionableEVENt?CLS 128 Bit Position Bit ValueESB = Event status byte summary MAV = Message available SRE SRE?SYSTemCOMMunicateTCPipCONTrol? System CommandsTST? ABORt Trigger CommandsPage Microsoft Excel Microsoft Visual BasicMicrosoft Visual C++ Output Programming Example Series N5700 User’s Guide Trigger Programming Example Series N5700 User’s Guide Page Appendix a Specifications Agilent Models N5741A N5752A and N5761A N5772A Performance SpecificationsProgramming Resolution Measurement Resolution Supplemental CharacteristicsRemote Sense Compensation Over-voltage ProtectionSavable states Series and Parallel CapabilityInterface Capabilities Environmental Conditions43.6mm Outline DiagramPage Limits and does not need to be re-calibrated Appendix B Verification and CalibrationEquipment Required VerificationPerformance CalibrationMeasurement Techniques Power SupplyElectronic Load Current-Monitoring ResistorVoltage Programming and Readback Accuracy Constant Voltage TestsCV Load Effect Model you are checkingCV Noise CV Source EffectTransient Recovery Time CC Load Effect Current Programming and Readback AccuracyCC Source Effect Test Record Form Agilent N5741A and N5761A Agilent N5742A and N5762A Report No Date Description Test Record Form Agilent N5742A and N5762AAgilent N5743A and N5763A Report No Date Description Test Record Form Agilent N5743A and N5763AAgilent N5744A and N5764A Report No Date Description Test Record Form Agilent N5744A and N5764AAgilent N5745A and N5765A Report No Date Description Test Record Form Agilent N5745A and N5765AAgilent N5746A and N5766A Report No Date Description Test Record Form Agilent N5746A and N5766AAgilent N5747A and N5767A Report No Date Description Test Record Form Agilent N5747A and N5767AAgilent N5748A and N5768A Report No Date Description Test Record Form Agilent N5748A and N5768AAgilent N5749A and N5769A Report No Date Description Test Record Form Agilent N5749A and N5769AAgilent N5750A and N5770A Report No Date Description Test Record Form Agilent N5750A and N5770AUse fixed resistor instead of load modules Test Record Form Agilent N5751A and N5771AAgilent N5751A and N5771A Report No Date Description Agilent N5752A and N5772A Report No Date Description Test Record Form Agilent N5752A and N5772ACalibration Calibration ProcedureVoltage Programming and Measurement Calibration Viattrtmovalue in the ViSetAttribute functionCurrent Programming and Measurement Calibration Appendix C Service Operating Checklist Types of Service AvailableTurn-on check out procedure Trouble-shooting guideDoes the AC source voltage sag when a load is applied? Symptom CheckDisplaying the Scpi error queue Error MessagesError List ErrorSyntax error Command errorData type error Command header errorCommand Errors Query Error Execution ErrorsQuery Interrupted Query UnterminatedPage Result in unpredictable instrument behavior Appendix D CompatibilityDifferences Differences In GeneralCompatibility Command Compatibility Command SummaryDescription Similar Scpi Command MEASVOLT? Index Index Initiate commandsOver-voltage protection Specifications130 Series N5700 User’s Guide Manufacturer’s SafetyAddress Conforms with the following product standardsManual Updates