Manuals / Agilent Technologies / Power Tools / Welding System

Agilent Technologies 5747A, 5752A, 5744A, 5743A External Monitoring of Output Voltage and Current

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

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Operating the Power Supply Locally 3

•Set the programming resistors to the desired resistance and turn the power supply on. Adjust the resistors to change the power supply output.

The analog control circuits let you set the output voltage and current limit up to 5% over the model-rated maximum value. The power supply will operate within the extended range, however it is not recommended to operate the power supply over its voltage and current rating, and performance in this region is not guaranteed.

SW1 switch 3		Voltage Programming		Current programming
		(J1 pin 9)		(J1 pin 10)
Down (default)		0 – 5 kΩ		0 – 5 kΩ
Up		0 – 10 kΩ		0 – 10 kΩ
CURRENT LIMIT			OUTPUT VOLTAGE
PROGRAMMING			PROGRAMMING	PROGRAMMING
PROGRAMMING				PROGRAMMING
RESISTOR				RESISTOR
12	10	9	8
13				1
25				14
OPTIONAL SETS	23	22		OPTIONAL SETS
LOWER LIMIT	23	22		LOWER LIMIT
LOWER LIMIT				LOWER LIMIT
OPTIONAL SETS				OPTIONAL SETS
UPPER LIMIT				UPPER LIMIT

External Monitoring of Output Voltage and Current

The J1 connector also provides analog signals for monitoring the output voltage and current. Selection of the voltage range between 0

–5 V or 0 – 10 V is made by SW1 setup switch 4. The monitoring signals represent 0 to 100% of the power supply output voltage and current rating. The monitor outputs have a 500 Ω series output resistance. Make sure that the sensing circuit has an input resistance greater than 500 kΩ or the accuracy will be reduced.

SW1 switch 4	Voltage		J1 signal	Signal function
	range		connection
Down (default)	0	– 5 V	J1 pin 11	Voltage Monitor
			J1 pin 24	Current Monitor
Up	0	– 10 V	J1 pin 11	Voltage Monitor
			J1 pin 24	Current Monitor

J1 pin 12 is the signal common for J1 pins 11 and 24.

Series N5700 User’s Guide

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Agilent Technologies 5747A, 5752A, 5744A, 5743A, 5748A, 5741A, 5746A, 5751A External Monitoring of Output Voltage and Current

Contents

User’s Guide Agilent Technologies, Inc Legal NoticesSafety Notices Frame or chassis terminalOn supply Off supply This Book Contents 116 113118 124Quick Reference Agilent N5700 DC Power Supplies At a Glance Output FeaturesSystem Features Programmable Functions Model RatingsModel Voltage Current Range 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 EnvironmentRack Installation CleaningThan 6 mm into the sides of the unit 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 wiresLocal Sensing Remote SensingPlug Type Multiple Loads Load ConsiderationsInductive Loads Output Noise and Impedance EffectsGrounding the Output Parallel ConnectionsConnected in parallel Local SensingSetting up the Master Unit Setting up the Slave UnitsRemote Sensing 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 CheckUVL Check Constant Current CheckOCP Check Constant Voltage Mode Constant Current ModeNormal Operation 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 TerminalsEnable/Disable Terminals SW1 switch SO Signal Level Output DisplaySW1 switch ENA+/ENA- pins Output Display Prot Indicator 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 RemotelyConnecting to the Interfaces Gpib InterfaceAutomation-Ready CD-ROM that is shipped with your product USB Interface LAN InterfaceVisa address is USB023912055serialnumber0INSTR An example of a hostname Connecting to a Site LANPrevious settings Connecting to a Private LANCAT5 Crossover Cable InstrumentUsing the Web Server LAN CommunicationEthernet Connection Monitoring Using Sockets Using TelnetConfiguring the LAN Parameters By the subnet mask setting Using the Setup Utility Factory-shipped LAN SettingsFactory-shipped non-volatile LAN settings Series N5700 User’s Guide Scpi Commands an Introduction Multiple Commands in a MessageSyntax Message Unit Commands from Different SubsystemsCommon Commands Command TerminatorsQueries Numeric Parameters Parameter TypesSuffixes and Multipliers Response Data TypesScpi Command Completion Device ClearSubsystem is in the Initiated state Language Reference Scpi Command Summary Subsystem CommandsScpi Command Description 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 Visual Basic Microsoft Visual C++Microsoft Excel 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 N5770ATest Record Form Agilent N5751A and N5771A Agilent N5751A and N5771A Report No Date DescriptionUse fixed resistor instead of load modules 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 Summary Description Similar Scpi CommandCompatibility Command MEASVOLT? Index Index Initiate commandsOver-voltage protection Specifications130 Series N5700 User’s Guide Manufacturer’s SafetyAddress Conforms with the following product standardsManual Updates