Agilent Technologies N6700 manual Couple Output Protection, Clear Output Protection Functions

Page 60

4 Operating the Power System

You can also specify a delay to prevent momentary CV-to-CC status changes from tripping the over-current protection.

Front Panel:

SCPI Command:

Select Protect\OCP.

To specify a 10 millisecond delay:

Enter a delay value and press Select.

OUTP:PROT:DEL 0.01,(@1,2)

Check "Start delay on CC" to start the

To start the delay timer by ANY

delay timer by ANY output transition

output transition into CC mode:

into CC mode. Otherwise, the delay

CURR:PROT:DEL:STAR CCTR,

timer will only be started by a settings

(@1,2)

To start the delay timer by a settings

change in voltage, current, or output

state.

change in voltage current or output:

 

CURR:PROT:DEL:STAR SCH,

 

(@1,2)

 

 

Couple Output Protection

Protection coupling lets you disable all output channels when a protection condition occurs on a single output channel. To couple output protection:

Front Panel:

SCPI Command:

Select Protect\Couple.

To enable output protection coupling:

Check the Enable Coupling box and

OUTP:PROT:COUP ON

press Select.

 

Clear Output Protection Functions

If an over-voltage, over-current, over-temperature, power-fail condition, power-limit condition, protection condition, or inhibit signal occurs, the power system turns off the affected output channel. The appropriate operating status indicator on the front panel will be on (e.g. OV, OC, OT, PF, CP+, PROT, INH). To clear the protection function and restore normal operation, first remove that condition that caused the protection fault. Then, clear the protection function as follows:

Front Panel:

SCPI Command:

Select Protect\Clear.

To clear a protection fault on output 1:

Select the Clear button.

OUTP:PROT:CLE(@1)

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Series N6700 User’s Guide

Image 60
Contents Agilent Technologies Low-Profile Modular Power System Legal Notices Agilent Technologies, IncSafety Notices GeneralThis Book Contents Agilent Models N6751A/N6752A, N6753A/N6754A, N6761A/N6762A 100103 104Modular Power System MPS Essential operating features of the power systemReferred to as MPS and power system throughout this manual Agilent N6700 Modular Power System At a Glance Output FeaturesSystem Features Model DifferencesFront Panel At a Glance Rear Panel At a GlanceIndicators Front Panel Display At a GlanceSingle-channel view Interface statusFront Panel Keys At a Glance Operating statusNumber keys Front Panel Menu Reference OCPUSB Scpi Command Summary Subsystem CommandsScpi Command Description Scpi Command FUNCtion VOLTage CURRent, @chanlist SWEepALL Common Commands RST SettingsCommand Description These settings are set by the *RST Reset commandInstallation General Information ModelsItems Supplied OptionsInstalling the Unit Safety ConsiderationsRack Installation Inspecting the UnitInstallation Bench Installation CleaningChannel Number Hz OperationConnecting the Line Cord InstallationPower cord, resulting in fire Snap-On Ferrite CoreConnecting the Outputs Screws securely tightenedTerminals. Sense jumpers are provided for local sensing Terminals in any other wayWire Size AWGMultiple Loads Response Time with an External CapacitorPositive and Negative Voltages N6700 Modular Power System Scope Remote Sense Connections Drop in the sense leads can degrade the voltage regulationParallel Connections Open Sense LeadsOver-voltage Protection Considerations Output Noise ConsiderationsWhen programming via the front panel or using Scpi commands Grouping the OutputsFirmware revision B.00.00 and up Discussed in under System-Related OperationsEffect on Specifications Recovery TimeSeries Connections Terminal may be more than 240 VDC from chassis groundSetting the Outputs Desired operating voltageEffect on Specifications Getting Started Menu structure is found in ChapterEntering an Output Voltage Setting Turning the Unit OnSelecting an Output Channel Method 1 Use the Navigation and Arrow KeysEntering a Current Limit Setting Use the On/Off key to enable the outputEnabling the Output Method 2 Use the Current key to enter a valueUsing the Front Panel Menu Press the Menu key to access the front panel command menuSet the Over-Voltage Protection MenuExiting the Command Menu Meter Back There are two ways to exit the command menuCase of Trouble Enter ChannelConnecting to the Interfaces Cause the unit to reset and require operator interventionGpib Interface Automation-Ready CD that is shipped with your productUSB-enabled instrument to the Universal Serial Bus USB. USB InterfaceLAN Interface Following figure illustrates a typical USB interface systemConnecting to a Site LAN Connecting to a Private LANRelease the previous settings Factory-shipped instrument LAN settings are configured toDhcp server. You can leave these settings as they are. Most Will come on when the LAN port has been configuredViewing the Currently Active LAN Settings Configuring the LAN ParametersLAN Parameters Take effectName DomainReset LAN CommunicationUsing the Web Server ReducedUsing Telnet Using SocketsTelnet connections to be made Enable/Disable the USB, LAN, and Web Server Restoring the Non-volatile Factory SettingsSecuring the Interfaces Factory-shipped non-volatile LAN settings Other factory-shipped non-volatile settingsOperating the Power System Programming the Output Select an Output ChannelSet the Output Voltage Set the Voltage Slew RateEnable the Output Set the Output CurrentSequence Multiple Outputs Outpdelrise .1,@2Front Panel Scpi Command Select Output\Polarity Program the Output RelaysOutp Outprelpol REV,@1Enable the Output to Respond to Trigger Commands Front Panel Scpi Command Select Transient\ModeFront Panel Scpi Command Select Transient\Step Synchronizing Output StepsSelect the Transient Trigger Source Initiate the Transient Trigger SystemGenerate Trigger Out Signals Front Panel Scpi Command Select Transient\ControlTrigger the Output Scroll to and select AbortMaking Measurements Simultaneous Voltage and Current MeasurementsMeasurement Ranges Using the Protection Functions Front Panel Scpi Command Select Protect\OVPSet the Over-Current Protection Enter a value in the OVP level box To 10 Press SelectCouple Output Protection Clear Output Protection FunctionsSystem-Related Operations Self-TestInstrument Identification Instrument State StorageFront Panel Scpi Command Select System\Groups Output GroupsSystgrodelall SystrebFront Panel Scpi Command Select System\Preferences\Lock Front Panel Scpi Command Select System\Preferences\KeysFront Panel Keys LockoutFront Panel Display Screen SaverContrast ViewWhen the power system is turned off Programming High-Speed Test ExtensionsList Function All models Refer to , Model DifferencesFront Panel Scpi Command Select Transient\List\Config Front Panel Scpi Command Select Transient\List\PaceProgram an Output Pulse or Pulse Train Voltmode LIST, @1Front Panel Scpi Command Select Transient\List\Repeat Front Panel Scpi Command Select Transient\TrigSourceTrigtransour BUS, @1 Inittran @1Program an Arbitrary List Select the List Step numberFront Panel Scpi Command Select the Transient\List\Repeat Liststep AUTO, @1Adjust the Measurement Sample Rate Front Panel Scpi Command Select Measure\SweepDigitizer Function Programming the DigitizerSpecify a Window Function Acquisition trigger, useTo offset the measurement on Front Panel Scpi Command Select Measure\Window Front Panel Scpi Command Not AvailableSynchronizing Digitizer Measurements Retrieve Measurement Array DataSelect the Measurement Trigger Source Sensfunc VOLT,@14Sensfunc CURR,@14 TransientnFront Panel Scpi Command Select Measure\Control Initiate the Measurement Trigger SystemTrigger the Measurement Trigacq @1Appendix a Specifications Performance Specifications Agilent Models N6751A/N6752A, N6753A/N6754A, N6761A/N6762ASupplemental Characteristics Up-programming Time with full resistive load Up-programming Settling Time with full resistive loadDown-programming Settling Time with no load Down-programming Time with Capacitive loadAutoranging Characteristic Output Impedance GraphsModel N6753A, CV Mode, @20V, 15A 0125 Magnitude Load Transient Recovery Time Agilent Models N6731B N6736B and N6741B N6746BTemperature 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 Dimensions Net WeightEnvironmental Conditions AC InputOutline Diagram 432.5 mm 17.03 482.6 mm 19.00 425.45 mmAppendix B Using the Digital Port Digital Control Port Configuring the Digital Control Port Bi-directional Digital I/OPin Bit Select System\IO\DigPort\PinnFront Panel Scpi Command Select System\IO\DigPort\Pinn Digital InputExternal Trigger Fault Output Front Panel Scpi Command Select System\IO\DigPort\Pin1Front Panel Scpi Command Select System\IO\DigPort\Pin3 Inhibit InputFault/Inhibit System Protection Clearing a System Protection FaultMainframes This chapter discusses the power allocation function For the majority of Agilent N6700 Modular Power SystemPower rating of Agilent N6700 mainframes is as follows Rating of the mainframePower Limit Operation Mainframe Power LimitModule Power Limit Must reset the power limit to its maximum rated valueModule 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 Procedure Enable the Synchronization FunctionOutpcoup on Outpcoup OFFSpecify the Turn-On Delays for each Output Channel Specify the Common Delay OffsetSpecify which Output Channels will be Synchronized Digital Connections and Configuration Synchronizing Multiple MainframesOperation System\IO\DigPort\Pin6DIGPIN6FUNC ONC DIGPIN7FUNC OffcIndex Inhibit input Instrument11, 42 ListSpecifications Remote interfaceSystem protection Declaration of Conformity Manual Updates