Agilent Technologies N6700 Programming and User Manual for Optimal Power System Operation

Page 51

4

Operating the Power System

Programming the Output	52
Synchronizing Output Steps	55
Making Measurements	58
Using the Protection Functions	59
System-Related Operations	61
Programming High-Speed Test Extensions	65

This chapter contains examples on how to operate your power system from the front panel and over the remote interface using SCPI commands.

For complete details on the SCPI (Standard Commands for

Programmable Instruments) commands, refer to the Programmer’s

Reference Help file included on the Agilent N6700 Product Reference

CD. This CD-ROM is shipped along with your instrument.

The simple examples discussed in this chapter show you how to program:

Output voltage and current functions

Protection functions

Internal and external triggers

Measurement functions

System functions

High-speed test extensions

Refer to Appendix B for information about using the Digital Port on the back of your instrument.

Refer to Appendix C for information about using the power allocation function.

Series N6700 User’s Guide

51

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Contents Agilent Technologies Low-Profile Modular Power System Agilent Technologies, Inc Legal NoticesGeneral Safety NoticesThis Book Contents 104 Agilent Models N6751A/N6752A, N6753A/N6754A, N6761A/N6762A100 103Modular Power System MPS Essential operating features of the power systemReferred to as MPS and power system throughout this manual Output Features Agilent N6700 Modular Power System At a GlanceModel Differences System FeaturesRear Panel At a Glance Front Panel At a GlanceInterface status IndicatorsFront Panel Display At a Glance Single-channel viewFront Panel Keys At a Glance Operating statusNumber keys OCP Front Panel Menu ReferenceUSB Scpi Command Summary Subsystem CommandsScpi Command Description FUNCtion VOLTage CURRent, @chanlist SWEep Scpi CommandALL These settings are set by the *RST Reset command Common CommandsRST Settings Command DescriptionInstallation Options General InformationModels Items SuppliedInspecting the Unit Installing the UnitSafety Considerations Rack InstallationInstallation Hz Operation Bench InstallationCleaning Channel NumberSnap-On Ferrite Core Connecting the Line CordInstallation Power cord, resulting in fireTerminals in any other way Connecting the OutputsScrews securely tightened Terminals. Sense jumpers are provided for local sensingAWG Wire SizeMultiple Loads Response Time with an External CapacitorPositive and Negative Voltages N6700 Modular Power System Scope Drop in the sense leads can degrade the voltage regulation Remote Sense ConnectionsOutput Noise Considerations Parallel ConnectionsOpen Sense Leads Over-voltage Protection ConsiderationsDiscussed in under System-Related Operations When programming via the front panel or using Scpi commandsGrouping the Outputs Firmware revision B.00.00 and upTerminal may be more than 240 VDC from chassis ground Effect on SpecificationsRecovery Time Series ConnectionsDesired operating voltage Setting the OutputsEffect on Specifications Menu structure is found in Chapter Getting StartedMethod 1 Use the Navigation and Arrow Keys Entering an Output Voltage SettingTurning the Unit On Selecting an Output ChannelMethod 2 Use the Current key to enter a value Entering a Current Limit SettingUse the On/Off key to enable the output Enabling the OutputMenu Using the Front Panel MenuPress the Menu key to access the front panel command menu Set the Over-Voltage ProtectionEnter Channel Exiting the Command MenuMeter Back There are two ways to exit the command menu Case of TroubleAutomation-Ready CD that is shipped with your product Connecting to the InterfacesCause the unit to reset and require operator intervention Gpib InterfaceFollowing figure illustrates a typical USB interface system USB-enabled instrument to the Universal Serial Bus USB.USB Interface LAN InterfaceConnecting to a Private LAN Connecting to a Site LANWill come on when the LAN port has been configured Release the previous settingsFactory-shipped instrument LAN settings are configured to Dhcp server. You can leave these settings as they are. MostTake effect Viewing the Currently Active LAN SettingsConfiguring the LAN Parameters LAN ParametersDomain NameLAN Communication ResetReduced Using the Web ServerUsing Telnet Using SocketsTelnet connections to be made Enable/Disable the USB, LAN, and Web Server Restoring the Non-volatile Factory SettingsSecuring the Interfaces Other factory-shipped non-volatile settings Factory-shipped non-volatile LAN settingsOperating the Power System Set the Voltage Slew Rate Programming the OutputSelect an Output Channel Set the Output VoltageOutpdelrise .1,@2 Enable the OutputSet the Output Current Sequence Multiple OutputsOutprelpol REV,@1 Front Panel Scpi Command Select Output\PolarityProgram the Output Relays OutpSynchronizing Output Steps Enable the Output to Respond to Trigger CommandsFront Panel Scpi Command Select Transient\Mode Front Panel Scpi Command Select Transient\StepInitiate the Transient Trigger System Select the Transient Trigger SourceScroll to and select Abort Generate Trigger Out SignalsFront Panel Scpi Command Select Transient\Control Trigger the OutputMaking Measurements Simultaneous Voltage and Current MeasurementsMeasurement Ranges Enter a value in the OVP level box To 10 Press Select Using the Protection FunctionsFront Panel Scpi Command Select Protect\OVP Set the Over-Current ProtectionClear Output Protection Functions Couple Output ProtectionInstrument State Storage System-Related OperationsSelf-Test Instrument IdentificationSystreb Front Panel Scpi Command Select System\GroupsOutput Groups SystgrodelallLockout Front Panel Scpi Command Select System\Preferences\LockFront Panel Scpi Command Select System\Preferences\Keys Front Panel KeysView Front Panel DisplayScreen Saver ContrastAll models Refer to , Model Differences When the power system is turned offProgramming High-Speed Test Extensions List FunctionVoltmode LIST, @1 Front Panel Scpi Command Select Transient\List\ConfigFront Panel Scpi Command Select Transient\List\Pace Program an Output Pulse or Pulse TrainInittran @1 Front Panel Scpi Command Select Transient\List\RepeatFront Panel Scpi Command Select Transient\TrigSource Trigtransour BUS, @1Select the List Step number Program an Arbitrary ListListstep AUTO, @1 Front Panel Scpi Command Select the Transient\List\RepeatProgramming the Digitizer Adjust the Measurement Sample RateFront Panel Scpi Command Select Measure\Sweep Digitizer FunctionSpecify a Window Function Acquisition trigger, useTo offset the measurement on Retrieve Measurement Array Data Front Panel Scpi Command Select Measure\WindowFront Panel Scpi Command Not Available Synchronizing Digitizer MeasurementsTransientn Select the Measurement Trigger SourceSensfunc VOLT,@14 Sensfunc CURR,@14Trigacq @1 Front Panel Scpi Command Select Measure\ControlInitiate the Measurement Trigger System Trigger the MeasurementAppendix a Specifications Agilent Models N6751A/N6752A, N6753A/N6754A, N6761A/N6762A Performance SpecificationsSupplemental Characteristics Down-programming Time with Capacitive load Up-programming Time with full resistive loadUp-programming Settling Time with full resistive load Down-programming Settling Time with no loadOutput Impedance Graphs Autoranging CharacteristicModel N6753A, CV Mode, @20V, 15A 0125 Magnitude Agilent Models N6731B N6736B and N6741B N6746B Load Transient Recovery TimeTemperature Coefficient per C Common Mode NoiseFrom 20 Hz 20 MHz from either output to chassis Agilent Models N6773A N6776A 20 mA Agilent N6700B, N6701A, N6702A MPS Mainframes AC Input DimensionsNet Weight Environmental Conditions432.5 mm 17.03 482.6 mm 19.00 425.45 mm Outline DiagramAppendix B Using the Digital Port Digital Control Port Select System\IO\DigPort\Pinn Configuring the Digital Control PortBi-directional Digital I/O Pin BitFront Panel Scpi Command Select System\IO\DigPort\Pinn Digital InputExternal Trigger Inhibit Input Fault OutputFront Panel Scpi Command Select System\IO\DigPort\Pin1 Front Panel Scpi Command Select System\IO\DigPort\Pin3Fault/Inhibit System Protection Clearing a System Protection FaultMainframes Rating of the mainframe This chapter discusses the power allocation functionFor the majority of Agilent N6700 Modular Power System Power rating of Agilent N6700 mainframes is as followsMust reset the power limit to its maximum rated value Power Limit OperationMainframe Power Limit Module Power LimitModule Power Allocation To set a power limit on outputPower limit function will not activate Page Appendix D Output On/Off Synchronization Synchronizing Output Turn-on Delays Power Modules Options and Mode MinimumTutorial Outpcoup OFF ProcedureEnable the Synchronization Function Outpcoup onSpecify the Turn-On Delays for each Output Channel Specify the Common Delay OffsetSpecify which Output Channels will be Synchronized Synchronizing Multiple Mainframes Digital Connections and ConfigurationDIGPIN7FUNC Offc OperationSystem\IO\DigPort\Pin6 DIGPIN6FUNC ONCIndex List Inhibit inputInstrument 11, 42Specifications Remote interfaceSystem protection Declaration of Conformity Manual Updates