Agilent Technologies N8900 series Specifiche

 Agilent N8900 Series Autoranging System DC Power Supply Operating and Service Guide

Specifications and CharacteristicsSpecifications and CharacteristicsSpecificationsSupplemental CharacteristicsCommon CharacteristicsAutoranging Charac

Trigger Commandsl With continuous triggering disabled, the trigger system must be initiated for each trigger using the INITi-ate:TRANsient command.l A

Status TutorialStatus TutorialThis section provides a detailed description of the individual registers and register groups. The status diagram at the

Status TutorialBit Bit NameDecimalValueDefinition0 CV 1 Output is in constant voltage1 CC 2 Output is in constant current2 OFF 4 Output is programmed

Status Tutorialcleared when read. The Standard Event enable register functions similarly to the enable registers of the Operation andQuestionable stat

Status TutorialBit Bit NameDecimalValueDefinition5Event StatusSummary32One or more bits are set in the Standard Event Register. Bitsmust be enabled, s

Status TutorialStatus Diagram104 Agilent N8900 Series Operating and Service Guide

Command Quick ReferenceCommand Quick ReferenceSome [optional] commands have been included for clarity. All settings commands have a corresponding quer

Command Quick Reference*RCL<value> Recalls a saved instrument state*RST Reset*SAV<value> Saves an instrument state*SRE <value> Set

Command Quick Reference[SOURce:] Commands[SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude] <value> Sets the output current

Command Quick ReferenceSYSTem CommandsSYSTem:COMMunicate:LAN|TCPip:CONTrol? Returns the initial socket control connection port numbe

Specifications and CharacteristicsSpecification 10 kWN8925A/N8945AN8926A/N8946AN8928A/N8948AN8929A/N8949AN8930A/N8950ADC RatingsVoltage:Curren

Reset State (*RST)Reset State (*RST)The power-on/reset state may differ from that shown below if you have enabled power-on staterecall mode from the S

Reset State (*RST)GPIB address 5GPIB interface EnabledLAN interface EnabledUSB interface EnabledScreen saver EnabledScreen saver delay 60 minutesWake

SCPI Error MessagesSCPI Error MessagesThe Agilent instrument returns error messages in accord with the SCPI standard.l Up to 20 errors can be stored i

SCPI Error Messages202 Selftest FailA selftest failure has occurred. See selftest failure list for details.209 Internal communication errorAn internal

SCPI Error Messages-109 Missing parameterFewer parameters were received than were expected.-110 Command header errorAn error was detected in the heade

SCPI Error Messages-144 Character data too longThe character data element contains more than 12 characters.-148 Character data not allowedA discrete p

SCPI Error Messages-240 Hardware errorThe command could not be executed because of a hardware problem with the instrument.-241 Hardware missingThe com

Compatibility CommandsCompatibility CommandsThe commands described in this section are provided for compatibility with the existing N6700 series modul

Service and MaintenanceService and MaintenanceFurther service and maintenance topics:Verification and CalibrationSelf-Test ProcedureFirmware UpdateIns

Service and Maintenancel Attach a tag to the unit identifying the owner and indicating the required service or repair. Include the model num-ber and f

Specifications and CharacteristicsSupplemental Characteristics (typical)Characteristic 5 kWN8920A/N8940AN8921A/N8941AN8923A/N8943AN8924A/N8944AProgram

Verification and CalibrationVerification and CalibrationFurther Verification and Calibration topics:Recommended Test Equipment and SetupsPerformance V

Verification and Calibrationline cycles per measurement. If you are using an Agilent 3458A DMM also turn on auto-calibration (ACAL) and theautorange f

Recommended Test Equipment and SetupsRecommended Test Equipment and SetupsTest EquipmentVerification and Calibration SetupsTest EquipmentThe test equi

Recommended Test Equipment and SetupsVerification and Calibration SetupsHAZARDOUS VOLTAGES All models generate voltages in excess of 60 VDC, with some

Performance VerificationPerformance VerificationVoltage Programming and Readback AccuracyConstant Voltage Load EffectConstant Voltage Ripple and Noise

Performance VerificationVoltage Programming and Readback AccuracyThis test verifies that the voltage programming and measurement functions are within

Performance VerificationConstant Voltage Ripple and NoisePeriodic and random deviations in the output combine to produce a residual AC voltage superim

Performance VerificationStep 6. The output voltage should return to within the specified voltage at the specified time following the loadchange. Check

Calibration ProcedureCalibration ProcedureEnter Calibration ModeVoltage Calibration - With Remote SensingVoltage Calibration - With Local SensingCurre

Calibration ProcedureEnter Calibration ModeFront Panel Menu SCPI CommandSelect System\Admin\Login.Enter your password in the Password field.Then press

Specifications and CharacteristicsSupplemental Characteristics (typical)Characteristic 10 kWN8925A/N8945AN8926A/N8946AN8928A/N8948AN8929A/N8949AN8930A

Calibration ProcedureSHOCK HAZARD The next step applies the full output voltage of the power supply tothe output terminals.Turn off the electronic loa

Calibration ProcedureCurrent CalibrationCurrent Programming and MeasurementTo guarantee a clean signal for calibration points 1 through 4, program the

Calibration ProcedureStep 6. Select the fourth current calibration point. Wait 3 minutes for the internal shunt temperature to stabilize. Cal-culate t

Test Record FormsTest Record FormsN8920A/N8940AN8920A/N8940A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results

Test Record FormsN8921A/N8941AN8921A/N8941A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8923A/N8943AN8923A/N8943A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8924A/N8944AN8924A/N8944A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8925A/N8945AN8925A/N8945A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8926A/N8946AN8926A/N8946A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8928A/N8948AN8928A/N8948A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Specifications and CharacteristicsSupplemental Characteristics (typical)Characteristic 15 kWN8931A/N8951AN8932A/N8952AN8934A/N8954AN8935A/N8955AN8937A

Test Record FormsN8929A/N8949AN8929A/N8949A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8930A/N8950AN8930A/N8950A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8931A/N8951AN8931A/N8951A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8932A/N8952AN8932A/N8952A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8934A/N8954AN8934A/N8954A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8935A/N8955AN8935A/N8955A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Test Record FormsN8937A/N8957AN8937A/N8957A Test Record Report Number ______ Date__________Test Description Model Min. Specs Results Max. SpecsWith Re

Self-Test ProcedureSelf-Test ProcedurePower-On Self-TestEach time the instrument is powered on, a subset of self-tests are performed. This assures you

Firmware UpdateFirmware UpdateRefer to Instrument Identification to determine which firmware version is installed on your instru-ment.Software Require

Instrument SanitizeInstrument SanitizeThis procedure is not recommended for use in routine applications because of the possibility of unin-tended loss

Specifications and CharacteristicsCommon CharacteristicsCharacteristic All ModelsCommand Response Time: < 25 msSavable States: 10Analog Programming

Calibration SwitchesCalibration SwitchesSHOCK HAZARD Only qualified, service-trained personnel who are aware of the haz-ards involved should remove in

DisassemblyDisassemblySHOCK HAZARD Only qualified, service-trained personnel who are aware of the haz-ards involved should remove instrument covers. A

DisassemblyAgilent N8900 Series Operating and Service Guide 151

Manual UpdatesManual UpdatesOutput Terminal IsolationThe Supplemental Characteristics section of this document describes the present output terminal i

Specifications and CharacteristicsAutoranging Characteristics5 kWModelsN8920AN8940AN8921AN8941AN8923AN8943AN8924AN8944AV1 80 V 200 V 500 V 750 VI1 62.

Specifications and CharacteristicsDimension Diagrams16 Agilent N8900 Series Operating and Service Guide

Operating InformationOperating InformationIntroduction to the InstrumentInstalling the InstrumentGetting StartedUsing the Power SupplyAgilent N8900 Se

Introduction to the InstrumentIntroduction to the InstrumentAgilent N8900 Series at a GlanceFront Panel at a GlanceFront Panel Display at a GlanceFron

Agilent N8900 Series AutorangingSystem DC Power SupplyOperating and Service GuideThis document includes user,service, and programming information for

Introduction to the InstrumentFront Panel at a GlanceFront Panel Display at a GlanceOutput voltage and current Displays the actual output voltage and

Introduction to the InstrumentVoltage and Current settings Displays the programmed voltage and current settings.Interface status Indicates the followi

Introduction to the InstrumentThe numeric entry keys do the following:The 0 through 9 keys enter numbers.The (.) key is the decimal point.The – key is

Front Panel MenuFront Panel MenuThis is an overview of the front-panel menus.Press the Menu key to access the front panel menus.For a brief tutorial o

Front Panel Menu1st MenuLevel2nd Level3rd & 4thLevelsDescriptionSystem Group Function Defines the function of each unit in the paralleled groupMas

Installing the InstrumentInstalling the InstrumentBefore Installation or UseAC Mains ConnectionsSingle Unit ConnectionsMultiple Unit ConnectionsAnalog

Before Installation or UseBefore Installation or UseInspect the UnitWhen you receive your power supply, inspect it for any obvious damage that may hav

Before Installation or UseProvide Adequate Air FlowDo not block the air intake at the front, or the exhaust at the rear of the unit.The dimensions of

AC Mains ConnectionsAC Mains ConnectionsPhase Balancing with Multiple UnitsPower CablesAC Mains Phase DistributionSHOCK HAZARD The instrument requires

AC Mains Connections208 VAC, 3-phase5 kW units only208 VAC, 3-phase10 kW units only208 VAC, 3-phase15 kW units onlyNote that either delta-type or Y-ty

Service InformationPerformance VerificationCalibration ProcedureContact Agilent TechnologiesYou can contact Agilent Technologies for warranty, service

AC Mains Connections5 kW, 208 VAC and 400 VAC,phase balancing scheme10 kW, 208 VAC and 400 VAC,phase balancing schemePower CablesAn AC mains power cab

AC Mains ConnectionsPower ConnectorRemove the strain relief to access the connector plug. Connect the AC mains cable to the connector plug as shown in

Single Unit ConnectionsSingle Unit ConnectionsSingle Load ConnectionsMultiple Load ConnectionsRemote Sense ConnectionsPositive and Negative VoltagesOu

Single Unit ConnectionsAWG Nearest Metric size Ampacity (Note1) Resistance (Note2)12 4 mm2up to 30 A 1.5910 6 mm2up to 40 A 1.08 10 mm2up to 60 A 0.63

Single Unit ConnectionsUse the M8 diameter bolts, nuts, ring lugs, andwashers - for models rated under 500 V.Maximum torque: 12.4 Nm (9.2 lb-ft).Use t

Single Unit ConnectionsRemote Sense ConnectionsWhen the sense leads are not connected to the load, the power supply will internally sense the voltage

Single Unit ConnectionsOver-voltage ProtectionRemote over-voltage protection (OVP) provides a customer-configurable over-voltage protection. When comb

Multiple Unit ConnectionsMultiple Unit ConnectionsParallel ConnectionsShare ConnectionsGroup ConnectionsSeries ConnectionsSHOCK HAZARD Turn off AC pow

Multiple Unit ConnectionsAgilent N8900 Series Operating and Service Guide 37

Multiple Unit ConnectionsShare ConnectionsThe Share terminals must be connected for parallel operation as shown in the figure above. For further infor

Legal and Safety InformationLegal and Safety InformationLegal NoticesSafety NoticesSafety SymbolsLegal Notices© Copyright Agilent Technologies, Inc. 2

Analog Port ConnectionsAnalog Port ConnectionsAnalog connections are made through the 15 pin analog connector (Type: Sub-D, D-Sub) on the rear of the

Interface ConnectionsInterface ConnectionsGPIB ConnectionsUSB ConnectionsLAN Connections - site and privateThis section describes how to connect to th

Interface Connections2. With the Connection Expert utility of the Agilent IO Libraries Suite running, the computer will automatically recog-nize the i

Getting StartedGetting StartedTurn the Unit OnSet the Output VoltageSet the Output CurrentSet the Over-Voltage ProtectionEnable the OutputUse the Buil

Getting StartedMethod 2Use the left and right navigation keys to navigate to the setting that you wish to change.In the following display, the voltage

Getting StartedMethod 2Use the left and right navigation keys to navigate to the setting that you wish to change.In the display below, the current set

Getting Startedl To exit the command menu press the Meter key to immediately return to meter mode, or press the Menu key toreturn to the top level.For

Getting StartedEnable the OutputHAZARDOUS VOLTAGES All models generate voltages in excess of 60 VDC, with somemodels rated at up to 1,500 VDC! Ensure

Remote Interface ConfigurationRemote Interface ConfigurationUSB ConfigurationGPIB ConfigurationLAN ConfigurationModifying the LAN SettingsUsing the We

Remote Interface ConfigurationLAN ConfigurationThe following sections describe the primary LAN configuration functions on the front-panel menus. Note

Legal and Safety Informationitem" as defined in FAR 2.101(a) or as "Restricted computer software" as defined in FAR 52.227-19 (June 198

Remote Interface ConfigurationModifying the LAN SettingsIP AddressSelect IP to configure the addressing of the instrument. Press the Menu key, then se

Remote Interface ConfigurationFront Panel Menu SCPI CommandSelect System\IO\LAN\Modify\NameYou can enter any value from the numerickeypad. For additio

Remote Interface ConfigurationmDNS Service NameThe mDNS service name is registered with the selected naming service. To configure the mDNS service nam

Remote Interface ConfigurationThe Web interface is enabled when shipped. To launch the Web interface:1. Open the Web browser on your computer.2. Enter

Remote Interface ConfigurationUsing SocketsPower supplies allow any combination of up to six simultaneous data socket, control socket, and tel-net con

Using the Power SupplyUsing the Power SupplyThis section contains details on using the instrument, including front panel and remote interface operatio

Programming the OutputProgramming the OutputWhen the power supply is first turned on, it may take about 30 seconds or so to initialize the unitbefore

Programming Output ProtectionProgramming Output ProtectionSet the Over-Voltage ProtectionSet the Over-Current ProtectionClear Output ProtectionThe Agi

Programming Output ProtectionYou can also specify an OCP delay to prevent momentary output settings, load, and status changes from tripping theover-cu

Programming Output StepsProgramming Output StepsThe transient system of the Agilent N8900 HPS lets you generate output steps. An output step is a one-

Legal and Safety InformationNote the instrument's external markings described under "Safety Symbols". Only operate the product at the r

Programming Output StepsFront Panel Menu SCPI CommandSelect Transient\Control.Scroll to Initiate. Then press Select.To initiate the transient trigger

Making MeasurementsMaking MeasurementsThe Agilent N8900 series has fully integrated voltmeter and ammeter to measure the actual voltage and current th

Parallel OperationParallel OperationCurrent Share OperationGroup OperationGroup ConfigurationGroup ProtectionParallel operation provides the possibili

Parallel OperationGroup ConfigurationTo configure the units in a paralleled group:Configure the Unit as either a Master or SlaveThe current SHARE cabl

Parallel OperationFront Panel Menu SCPI CommandSelect System\Group\MasterThe Configured field displays the addresses ofall connected and configured Sl

Analog ProgrammingAnalog ProgrammingSpecify the Analog Reference VoltageEnable the Analog InterfaceProgram the Analog FunctionsPin Descriptions and Ch

Analog ProgrammingProgram the Analog FunctionsEquipment Damage The digital and analog ground pins are internally connected to the USB andGPIB grounds.

Analog ProgrammingOutput current and voltage control using external potentiometersAnalog remote control of the output can be accomplished byconnecting

Analog ProgrammingPin Descriptions and CharacteristicsPin DescriptionsPin Name Type Description1 VPROG Analog in Programs output voltage. Only active

System-Related OperationsSystem-Related OperationsInstrument IdentificationInstrument State StorageFront Panel DisplayPassword ProtectionInstrument Id

Legal and Safety InformationA CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not cor-re

System-Related OperationsFront Panel DisplayThe power supply has a front panel screen saver that significantly increases the life of the LCD display b

Operating Mode TutorialOperating Mode TutorialVoltage RegulationCurrent RegulationPower RegulationVoltage RegulationVoltage regulation is also known a

Operating Mode TutorialCurrent RegulationCurrent regulation is also known as current limiting or constant current mode (CC).In CC mode, the DC output

SCPI Programming ReferenceSCPI Programming ReferenceIntroduction to the SCPI LanguageCommands by SubsystemCommand Quick ReferenceReset State (*RST)SCP

Introduction to the SCPI LanguageIntroduction to the SCPI LanguageKeywordsQueriesCommand Separators and TerminatorsSyntax ConventionsParameter TypesDe

Introduction to the SCPI LanguageThe command syntax shows most commands (and some parameters) as amixture of upper- and lower-case letters.The upper-

Introduction to the SCPI LanguageOUTPut:PROTection:CLEar;:STATus:OPERation:CONDition?Note the use of the colon after the semicolon in order to return

Introduction to the SCPI Languageters. Query responses will always return the short form in all upper-case letters. The following command requires a d

Commands by SubsystemCommands by SubsystemSubsystemCALibrateDISPlayMEASureOUTPut[SOURce:]CURRentVOLTageSTATusSYSTemTRIGgerAdditional CommandsCompatibi

Calibrate CommandsCalibrate CommandsCalibrate commands calibrate the instrument.Read the calibration section before calibrating. Improper calibration

Legal and Safety InformationContains one or more of the 6 hazardous substances above the maximum con-centration value (MCV), 40 Year EPUP.ISM1-AThis t

Calibrate CommandsParameter Typical Return<"date">String program data. Enclose stringparameters in single or double quotes.Date of las

Calibrate CommandsCALibrate:STATe 0|OFF|1|ON [,<password>]CALibrate:STATe?Enables or disables calibration mode. Calibration mode must be enabled

DISPlay/LXI CommandsDISPlay/LXI CommandsDISPlay[:WINDow][:STATe] 0|OFF|1|ONDISPlay[:WINDow][:STATe]?Turns the front panel display on or off.Parameter

MEASure CommandsMEASure CommandsMeasure commands measure the output voltage, current, or power. They trigger the acquisition of new data beforereturni

OUTPut CommandsOUTPut CommandsOutput commands control the output, power-on, and protection clear functions.OUTPut[:STATe] 0|OFF|1|ONOUTPut[:STATe]?Ena

[SOURce] Commands[SOURce] CommandsThe SOURce keyword is optional in the following CURRent and VOLTage commands[SOURce:]CURRent[:LEVel][:IMMediate][:AM

[SOURce] Commands[SOURce:]CURRent:PROTection:STATe 0|OFF|1|ON[SOURce:]CURRent:PROTection:STATe?Enables or disables the over-current protection. If the

[SOURce] Commands[SOURce:]VOLTage:PROTection[:LEVel] <value>|MIN|MAX[SOURce:]VOLTage:PROTection[:LEVel]? [MIN|MAX]Sets the over-voltage protecti

STATus CommandsSTATus CommandsStatus commands let you determine the operating condition of the instrument at any time. The instrument has threegroups

STATus Commandsl *CLS does not clear the enable register, but does clear the event register.STATus:OPERation:NTRansition <value>STATus:OPERation

Models and OptionsModels and OptionsModel Ratings5 kW Models Voltage Current AC mainsAgilent N8920AAgilent N8921AAgilent N8923AAgilent N8924AAgilent N

STATus CommandsSTATus:QUEStionable[:EVENt]?Queries the event register for the Questionable Status group. This is a read-only register, which stores (l

STATus CommandsSTATus:QUEStionable:NTRansition <value>STATus:QUEStionable:NTRansition?STATus:QUEStionable:PTRansition <value>STATus:QUESti

STATus CommandsParameter Typical ReturnA decimal value that corresponds to the binary-weighted sum of the bits in the register.<bit value>Enable

STATus Commands*OPC?Returns a 1 to the output buffer when all pending operations complete. The response is delayed until all pending oper-ations compl

STATus Commands*WAIPauses additional command processing until all pending operations are complete. See OPC for more information.Parameter Typical Retu

SYSTem CommandsSYSTem CommandsSystem commands control system functions that are not directly related to output control, measurement, or statusfunction

SYSTem Commandsl The front-panel ERR annunciator turns on when one or more errors are currently stored in the error queue. Errorretrieval is first-in-

SYSTem Commands*LRN?Returns a sequence of SCPI commands that can later be used to put the instrument in the same state that it was inwhen the *LRN? qu

SYSTem CommandsParameter Typical Return(none) (none)Reset the instrument: *RSTl *RST forces the ABORt command. This cancels any trigger actions presen

Trigger CommandsTrigger CommandsTrigger commands control the remote triggering of the instrument's output. Abort commands abort any pending trig-