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Agilent Technologies N5700 manual Load Considerations, Multiple Loads

Models: N5700

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2 Installation

To configure the power supply for remote sensing:

•Turn off the power supply.

•Remove the local sense jumpers from the J2 connector.

•Connect the negative sense lead to terminal 5 (-S) and the positive sense lead to terminal 1 (+S). Make sure that the connector plug is securely inserted into the connector body.

•Turn on the power supply.

Load lines. Twisted pair shortest length possible.

+V

Power -V

Supply

-Rem.sense -Local sense +Local sense +Rem.sense

+

Load

Sense lines. Twisted pair or shielded wires.

NOTE

If the power supply is operated with remote sensing and either the positive or negative load wire is not connected, an internal protection circuit will activate and shut down the power supply. To resume operation, turn the power supply off, connect the open load wire, and turn on the power supply.

Load Considerations

Multiple Loads

The following figure shows multiple loads connected to one power supply. Each load should be connected to the power supply’s output terminals using separate pairs of wires. It is recommended that each pair of wires will be as short as possible and twisted or shielded to minimize noise pick-up and radiation. The sense wires should be connected to the power supply output terminals or to the load with the most critical load regulation requirement.

+V

Power -V

Supply

-Rem.sense

-Local sense +Local sense +Rem.sense

Load lines, twisted pair, shortest length possible.

+ Load#1

+ Load#2

+ Load#3

26	Series N5700 User’s Guide

Image 26

Agilent Technologies N5700 manual Load Considerations, Multiple Loads

Contents

User’s Guide Legal Notices Agilent Technologies, IncOn supply Off supply Safety NoticesFrame or chassis terminal This Book Contents 118 113116 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 Limit indicator LAN indicatorOCP indicator Fine indicatorRear Panel At a Glance Enable/Disable control J2 Sense ConnectorSW1 Setup Switch Remote sense + Local sense + Not usedJ1 Analog Programming Connector Installation Models AccessoriesGeneral Information Items SuppliedInspecting the Unit Installing the UnitSafety Considerations EnvironmentThan 6 mm into the sides of the unit Rack InstallationCleaning Input Connections for 750W units Connecting the Line CordPower cord, resulting in fire Input Connections for 1500W unitsInstallation Shorted, whichever is greater Wire SizeTightened For 5 a For 10 a For 20A For 50A For 150APrevent loosening the connections or bending the bus-bars Output voltage of the power supplyLoad Connections for 6V to 60V Models Cross Section Resistance10 mm 0.39 Wire SizeLoad Connections for 80V to 600V Models TorqueLoad wires Output Voltage SensingPlug Type Local SensingRemote Sensing Load Considerations Multiple LoadsOutput Noise and Impedance Effects Inductive LoadsThan ±60 VDC above or below chassis ground Battery ChargingGrounding the Output Shall be more than ±600 VDC above or below chassis groundSetting up the Master Unit Remote SensingSetting the Over-Current Protection Setting up the Slave UnitsSetting the Over-Voltage Protection Series ConnectionsLocal Sensing Separated and floated from each otherMating Plug J1 Connector ConnectionsVoltage of the power supply Extraction toolOperating the Power Supply Locally Before Check-Out On check-out procedureTurn-On Check-Out Constant Voltage CheckOCP Check UVL CheckConstant Current Check Normal Operation Constant Voltage ModeConstant Current Mode Over-Voltage Protection CV/CC Mode CrossoverCV/CC Signal Limit the sink current to less than 10mAUnder-Voltage Limit Over-Current ProtectionFront Panel Lock-Out Over-Temperature ProtectionPower-Fail Protection SYSTCOMMRLST, it cannot be unlocked from the front panelSafe-Start and Auto-Restart Output On/Off ControlsOUT on button Output Shut-Off TerminalsSW1 switch ENA+/ENA- pins Output Display Prot Indicator Enable/Disable TerminalsSW1 switch SO Signal Level Output Display Daisy-Chained Output Shut-down Power Supply OK SignalAnalog Programming of Output Voltage and Current Sense terminal, as it may damage the unitAnalog Programming Control Terminals Voltage Programming of Output Voltage and CurrentResistance Programming of Output Voltage and Current SW1 switchDown default Voltage Programming Current ProgrammingDown default J1 pin Voltage Monitor Current Monitor External Monitoring of Output Voltage and CurrentPage Operating the Power Supply Remotely Automation-Ready CD-ROM included with this productAutomation-Ready CD-ROM that is shipped with your product Connecting to the InterfacesGpib Interface Visa address is USB023912055serialnumber0INSTR USB InterfaceLAN Interface Connecting to a Site LAN An example of a hostnameCAT5 Crossover Cable Connecting to a Private LANPrevious settings InstrumentEthernet Connection Monitoring Using the Web ServerLAN Communication Using Telnet Using SocketsConfiguring 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 Commands from Different Subsystems Message UnitQueries Common CommandsCommand Terminators Suffixes and Multipliers Parameter TypesNumeric Parameters Response Data TypesSubsystem is in the Initiated state Scpi Command CompletionDevice Clear Language Reference Scpi Command Description Scpi Command SummarySubsystem Commands Command Description Calibration Commands Commands will generate an errorMeasure Commands CALibrateSTATe Onoff ,password CALibrateSTATe?Output Commands OUTPutSTATe Onoff OUTPutSTATe?Source Commands Model V ratingMin. low limit Max. low limit Status Commands WTG Generation1024 256 Bit PositionBit Value Bit NameSTATusQUEStionableEVENt? 1024 512CLS Bit Position Bit Value 128SRE SRE? ESB = Event status byte summary MAV = Message availableSystem Commands SYSTemCOMMunicateTCPipCONTrol?TST? Trigger Commands ABORtPage 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 Performance Specifications Agilent Models N5741A N5752A and N5761A N5772ARemote Sense Compensation Supplemental CharacteristicsProgramming Resolution Measurement Resolution Over-voltage ProtectionInterface Capabilities Series and Parallel CapabilitySavable states Environmental ConditionsOutline Diagram 43.6mmPage Appendix B Verification and Calibration Limits and does not need to be re-calibratedPerformance VerificationEquipment Required CalibrationElectronic Load Power SupplyMeasurement Techniques Current-Monitoring ResistorCV Load Effect Constant Voltage TestsVoltage Programming and Readback Accuracy Model you are checkingCV Source Effect CV NoiseTransient Recovery Time Current Programming and Readback Accuracy CC Load EffectCC Source Effect Test Record Form Agilent N5741A and N5761A Test Record Form Agilent N5742A and N5762A Agilent N5742A and N5762A Report No Date DescriptionTest Record Form Agilent N5743A and N5763A Agilent N5743A and N5763A Report No Date DescriptionTest Record Form Agilent N5744A and N5764A Agilent N5744A and N5764A Report No Date DescriptionTest Record Form Agilent N5745A and N5765A Agilent N5745A and N5765A Report No Date DescriptionTest Record Form Agilent N5746A and N5766A Agilent N5746A and N5766A Report No Date DescriptionTest Record Form Agilent N5747A and N5767A Agilent N5747A and N5767A Report No Date DescriptionTest Record Form Agilent N5748A and N5768A Agilent N5748A and N5768A Report No Date DescriptionTest Record Form Agilent N5749A and N5769A Agilent N5749A and N5769A Report No Date DescriptionTest Record Form Agilent N5750A and N5770A Agilent N5750A and N5770A Report No Date DescriptionUse fixed resistor instead of load modules Test Record Form Agilent N5751A and N5771AAgilent N5751A and N5771A Report No Date Description Test Record Form Agilent N5752A and N5772A Agilent N5752A and N5772A Report No Date DescriptionVoltage Programming and Measurement Calibration Calibration ProcedureCalibration Viattrtmovalue in the ViSetAttribute functionCurrent Programming and Measurement Calibration Appendix C Service Turn-on check out procedure Types of Service AvailableOperating Checklist Trouble-shooting guideSymptom Check Does the AC source voltage sag when a load is applied?Error List Error MessagesDisplaying the Scpi error queue ErrorData type error Command errorSyntax error Command header errorCommand Errors Query Interrupted Execution ErrorsQuery Error Query UnterminatedPage Appendix D Compatibility Result in unpredictable instrument behaviorDifferences In General DifferencesCompatibility Command Compatibility Command SummaryDescription Similar Scpi Command MEASVOLT? Index Initiate commands IndexSpecifications Over-voltage protection130 Series N5700 User’s Guide Address SafetyManufacturer’s Conforms with the following product standardsManual Updates