Multiple Loads | Agilent Technologies N6700 specification

Installation 2

Multiple Loads

If you are using local sensing and are connecting multiple loads to one output, connect each load to the output terminals using separate connecting wires as shown in the following figure.

12A & 20 A CONNECTOR

+S +		-S

+

50A CONNECTOR

SENSE JUMPERS INSTALLED FOR LOCAL SENSING

TWIST

LEADS

50A SENSE

+S +LS -LS -S

	TWIST LEADS
+	+
LOAD	LOAD

+

LOAD

SENSE JUMPERS

INSTALLED FOR

LOCAL SENSING

+

LOAD

This minimizes mutual coupling effects and takes full advantage of the power system's low output impedance. Keep each pair of wires as short as possible and twist or bundle them to reduce lead inductance and noise pickup.

If load considerations require the use of distribution terminals that are located away from the instrument, connect the output terminals to the remote distribution terminals by a pair of twisted or bundled wires. Connect each load to the distribution terminals separately.

Remote voltage sensing is recommended under these circumstances. Sense either at the remote distribution terminals or, if one load is more sensitive than the others, directly at the critical load.

Response Time with an External Capacitor

When programming with an external capacitor, voltage response time may be longer than that specified in Appendix A. Use the following formula to estimate the additional response time for up programming:

Response Time = (Added Output Capacitor)X(Change in Vout)

Current Limit Setting

Note that programming into an external output capacitor may cause the power system to briefly enter constant current or constant power operating mode, which adds additional time to the estimation.

Positive and Negative Voltages

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. The instrument can be operated with any output terminal ± 240 VDC including output voltage from ground.

Series N6700 User’s Guide

27

Image 27

Agilent Technologies N6700 manual Multiple Loads, Response Time with an External Capacitor, Positive and Negative Voltages

Contents

Agilent Technologies Low-Profile Modular Power System Agilent Technologies, Inc Legal Notices General Safety Notices This Book Contents 104 Agilent Models N6751A/N6752A, N6753A/N6754A, N6761A/N6762A100 103 Modular 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 Glance Model Differences System Features Rear Panel At a Glance Front Panel At a Glance Interface status IndicatorsFront Panel Display At a Glance Single-channel view Front Panel Keys At a Glance Operating statusNumber keys OCP Front Panel Menu Reference USB Scpi Command Summary Subsystem CommandsScpi Command Description FUNCtion VOLTage CURRent, @chanlist SWEep Scpi Command ALL These settings are set by the *RST Reset command Common CommandsRST Settings Command Description Installation Options General InformationModels Items Supplied Inspecting the Unit Installing the UnitSafety Considerations Rack Installation Installation Hz Operation Bench InstallationCleaning Channel Number Snap-On Ferrite Core Connecting the Line CordInstallation Power cord, resulting in fire Terminals in any other way Connecting the OutputsScrews securely tightened Terminals. Sense jumpers are provided for local sensing AWG Wire Size Multiple 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 Connections Output Noise Considerations Parallel ConnectionsOpen Sense Leads Over-voltage Protection Considerations Discussed in under System-Related Operations When programming via the front panel or using Scpi commandsGrouping the Outputs Firmware revision B.00.00 and up Terminal may be more than 240 VDC from chassis ground Effect on SpecificationsRecovery Time Series Connections Desired operating voltage Setting the Outputs Effect on Specifications Menu structure is found in Chapter Getting Started Method 1 Use the Navigation and Arrow Keys Entering an Output Voltage SettingTurning the Unit On Selecting an Output Channel Method 2 Use the Current key to enter a value Entering a Current Limit SettingUse the On/Off key to enable the output Enabling the Output Menu Using the Front Panel MenuPress the Menu key to access the front panel command menu Set the Over-Voltage Protection Enter Channel Exiting the Command MenuMeter Back There are two ways to exit the command menu Case of Trouble Automation-Ready CD that is shipped with your product Connecting to the InterfacesCause the unit to reset and require operator intervention Gpib Interface Following figure illustrates a typical USB interface system USB-enabled instrument to the Universal Serial Bus USB.USB Interface LAN Interface Connecting to a Private LAN Connecting to a Site LAN Will 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. Most Take effect Viewing the Currently Active LAN SettingsConfiguring the LAN Parameters LAN Parameters Domain Name LAN Communication Reset Reduced Using the Web Server Using 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 settings Operating the Power System Set the Voltage Slew Rate Programming the OutputSelect an Output Channel Set the Output Voltage Outpdelrise .1,@2 Enable the OutputSet the Output Current Sequence Multiple Outputs Outprelpol REV,@1 Front Panel Scpi Command Select Output\PolarityProgram the Output Relays Outp Synchronizing Output Steps Enable the Output to Respond to Trigger CommandsFront Panel Scpi Command Select Transient\Mode Front Panel Scpi Command Select Transient\Step Initiate the Transient Trigger System Select the Transient Trigger Source Scroll to and select Abort Generate Trigger Out SignalsFront Panel Scpi Command Select Transient\Control Trigger the Output Making 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 Protection Clear Output Protection Functions Couple Output Protection Instrument State Storage System-Related OperationsSelf-Test Instrument Identification Systreb Front Panel Scpi Command Select System\GroupsOutput Groups Systgrodelall Lockout Front Panel Scpi Command Select System\Preferences\LockFront Panel Scpi Command Select System\Preferences\Keys Front Panel Keys View Front Panel DisplayScreen Saver Contrast All models Refer to , Model Differences When the power system is turned offProgramming High-Speed Test Extensions List Function Voltmode LIST, @1 Front Panel Scpi Command Select Transient\List\ConfigFront Panel Scpi Command Select Transient\List\Pace Program an Output Pulse or Pulse Train Inittran @1 Front Panel Scpi Command Select Transient\List\RepeatFront Panel Scpi Command Select Transient\TrigSource Trigtransour BUS, @1 Select the List Step number Program an Arbitrary List Liststep AUTO, @1 Front Panel Scpi Command Select the Transient\List\Repeat Programming the Digitizer Adjust the Measurement Sample RateFront Panel Scpi Command Select Measure\Sweep Digitizer Function Specify 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 Measurements Transientn Select the Measurement Trigger SourceSensfunc VOLT,@14 Sensfunc CURR,@14 Trigacq @1 Front Panel Scpi Command Select Measure\ControlInitiate the Measurement Trigger System Trigger the Measurement Appendix a Specifications Agilent Models N6751A/N6752A, N6753A/N6754A, N6761A/N6762A Performance Specifications Supplemental 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 load Output Impedance Graphs Autoranging Characteristic Model N6753A, CV Mode, @20V, 15A 0125 Magnitude Agilent Models N6731B N6736B and N6741B N6746B Load Transient Recovery Time Temperature 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 Conditions 432.5 mm 17.03 482.6 mm 19.00 425.45 mm Outline Diagram Appendix B Using the Digital Port Digital Control Port Select System\IO\DigPort\Pinn Configuring the Digital Control PortBi-directional Digital I/O Pin Bit Front 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\Pin3 Fault/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 follows Must reset the power limit to its maximum rated value Power Limit OperationMainframe Power Limit Module Power Limit Module 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 on Specify 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 Configuration DIGPIN7FUNC Offc OperationSystem\IO\DigPort\Pin6 DIGPIN6FUNC ONC Index List Inhibit inputInstrument 11, 42 Specifications Remote interfaceSystem protection Declaration of Conformity Manual Updates