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Agilent Technologies N5700 manual Battery Charging, Grounding the Output

Models: N5700

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2 Installation

Battery Charging

	If a battery or external voltage source is connected across the output and the
CAUTION
	output is programmed below the battery or external voltage source, the power
	supply will continuously sink current from the external source. This could
	damage the power supply.

To avoid damaging the power supply, insert a reverse blocking diode in series with the + output connection of the power supply. Connect the diode’s cathode to the + battery terminal or external voltage source. Connect the diode’s anode to the + output terminal of the power supply.

Grounding the Output

		The output of the power supply is isolated from earth ground. Either
		positive or negative voltages can be obtained from the output by
		grounding (or "commoning") one of the output terminals. Always use
		two wires to connect the load to the output regardless of where or
		how the system is grounded.
		To avoid noise problems caused by common-mode current flowing
		from the load to ground, it is recommended to ground the output
		terminal as close as possible to the power supply chassis ground.
		SHOCK HAZARD
	WARNING	SHOCK HAZARD
		For models up to 60 VDC rated output, no point on the output shall be more
		than ±60 VDC above or below chassis ground.
		For models greater than 60 VDC rated output, no point on the Positive output
		shall be more than ±600 VDC above or below chassis ground.
		For models greater than 60 VDC rated output, no point on the Negative output
		shall be more than ±400 VDC above or below chassis ground.

Parallel Connections
		Only power supplies that have identical voltage and current ratings can be
	CAUTION
		connected in parallel.

		Up to four units of the same voltage and current rating can be
		connected in parallel to provide up to four times the output current
		capability. Refer to the following figures for typical connections of
		parallel power supplies using either local or remote sensing. The
		figures show two units, however, the same connection method
		applies for up to four units.

28	Series N5700 User’s Guide

Image 28

Agilent Technologies N5700 manual Battery Charging, Grounding the Output, Than ±60 VDC above or below chassis ground

Contents

User’s Guide Legal Notices Agilent Technologies, IncFrame or chassis terminal Safety NoticesOn supply Off supply This Book Contents 113 116118 124Quick Reference Output Features Agilent N5700 DC Power Supplies At a GlanceSystem Features Model Ratings Programmable FunctionsModel Voltage Current Range Front Panel At a Glance LAN indicator OCP indicatorLimit indicator Fine indicatorRear Panel At a Glance J2 Sense Connector SW1 Setup SwitchEnable/Disable control Remote sense + Local sense + Not usedJ1 Analog Programming Connector Installation Accessories General InformationModels Items SuppliedInstalling the Unit Safety ConsiderationsInspecting the Unit EnvironmentCleaning Rack InstallationThan 6 mm into the sides of the unit Connecting the Line Cord Power cord, resulting in fireInput Connections for 750W units Input Connections for 1500W unitsInstallation Wire Size TightenedShorted, whichever is greater For 5 a For 10 a For 20A For 50A For 150AOutput voltage of the power supply Load Connections for 6V to 60V ModelsPrevent loosening the connections or bending the bus-bars Cross Section ResistanceWire Size Load Connections for 80V to 600V Models10 mm 0.39 TorqueLoad wires Output Voltage SensingRemote Sensing Local SensingPlug Type Load Considerations Multiple LoadsOutput Noise and Impedance Effects Inductive LoadsBattery Charging Grounding the OutputThan ±60 VDC above or below chassis ground Shall be more than ±600 VDC above or below chassis groundSetting up the Master Unit Remote SensingSetting up the Slave Units Setting the Over-Voltage ProtectionSetting the Over-Current Protection Series ConnectionsLocal Sensing Separated and floated from each otherJ1 Connector Connections Voltage of the power supplyMating Plug Extraction toolOperating the Power Supply Locally On check-out procedure Turn-On Check-OutBefore Check-Out Constant Voltage CheckConstant Current Check UVL CheckOCP Check Constant Current Mode Constant Voltage ModeNormal Operation CV/CC Mode Crossover CV/CC SignalOver-Voltage Protection Limit the sink current to less than 10mAUnder-Voltage Limit Over-Current ProtectionOver-Temperature Protection Power-Fail ProtectionFront Panel Lock-Out SYSTCOMMRLST, it cannot be unlocked from the front panelOutput On/Off Controls OUT on buttonSafe-Start and Auto-Restart Output Shut-Off TerminalsSW1 switch SO Signal Level Output Display Enable/Disable TerminalsSW1 switch ENA+/ENA- pins Output Display Prot Indicator Power Supply OK Signal Analog Programming of Output Voltage and CurrentDaisy-Chained Output Shut-down Sense terminal, as it may damage the unitAnalog Programming Control Terminals Voltage Programming of Output Voltage and CurrentSW1 switch Down defaultResistance Programming of Output Voltage and Current 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 productGpib Interface Connecting to the InterfacesAutomation-Ready CD-ROM that is shipped with your product LAN Interface USB InterfaceVisa address is USB023912055serialnumber0INSTR Connecting to a Site LAN An example of a hostnameConnecting to a Private LAN Previous settingsCAT5 Crossover Cable InstrumentLAN Communication Using the Web ServerEthernet Connection Monitoring Using Telnet Using SocketsConfiguring the LAN Parameters By the subnet mask setting Factory-shipped LAN Settings Using the Setup UtilityFactory-shipped non-volatile LAN settings Series N5700 User’s Guide Multiple Commands in a Message Scpi Commands an IntroductionSyntax Commands from Different Subsystems Message UnitCommand Terminators Common CommandsQueries Parameter Types Numeric ParametersSuffixes and Multipliers Response Data TypesDevice Clear Scpi Command CompletionSubsystem is in the Initiated state Language Reference Subsystem Commands Scpi Command SummaryScpi Command Description 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 GenerationBit Position Bit Value1024 256 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 Visual C++ Microsoft Visual BasicMicrosoft Excel 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 N5772ASupplemental Characteristics Programming Resolution Measurement ResolutionRemote Sense Compensation Over-voltage ProtectionSeries and Parallel Capability Savable statesInterface Capabilities Environmental ConditionsOutline Diagram 43.6mmPage Appendix B Verification and Calibration Limits and does not need to be re-calibratedVerification Equipment RequiredPerformance CalibrationPower Supply Measurement TechniquesElectronic Load Current-Monitoring ResistorConstant Voltage Tests Voltage Programming and Readback AccuracyCV Load Effect 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 DescriptionAgilent N5751A and N5771A Report No Date Description Test Record Form Agilent N5751A and N5771AUse fixed resistor instead of load modules Test Record Form Agilent N5752A and N5772A Agilent N5752A and N5772A Report No Date DescriptionCalibration Procedure CalibrationVoltage Programming and Measurement Calibration Viattrtmovalue in the ViSetAttribute functionCurrent Programming and Measurement Calibration Appendix C Service Types of Service Available Operating ChecklistTurn-on check out procedure Trouble-shooting guideSymptom Check Does the AC source voltage sag when a load is applied?Error Messages Displaying the Scpi error queueError List ErrorCommand error Syntax errorData type error Command header errorCommand Errors Execution Errors Query ErrorQuery Interrupted Query UnterminatedPage Appendix D Compatibility Result in unpredictable instrument behaviorDifferences In General DifferencesDescription Similar Scpi Command Compatibility Command SummaryCompatibility Command MEASVOLT? Index Initiate commands IndexSpecifications Over-voltage protection130 Series N5700 User’s Guide Safety Manufacturer’sAddress Conforms with the following product standardsManual Updates