Agilent Technologies 5951-2827 manual Introduction, Front Panel Description, Remote Programming

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Operation Overview

Introduction

The Electronic Load is used for design, manufacturing, and evaluation of dc power supplies, batteries, and power components. The primary operating features of the Electronic Load are: constant current (CC) mode, constant voltage (CV) mode, or constant resistance (CR) mode. The input can also be turned on or off (open circuit) or short circuited.

Other features include a built-in GPIB interface and a built-in pulse generator. Pulse mode allows dynamic testing of power supplies and components, without giving the device under test time to heat up. This flexible mode provides three triggering methods, allowing synchronization with a wide variety of events. A Save/Recall feature allows you to save up to 7 complete instrument setups, one of which can be saved in non-volatile memory so that it is recalled automatically at power-on. Also standard is GPIB readback of actual input voltage and current, and extensive protection and status reporting capability.

The Electronic Load contains a fan whose speed automatically increases or decreases as the heatsink temperature rises and falls. This reduces the overall noise level because the fan does not run at maximum speed at all times.

The input power rating curve for the Electronic Load is shown in Table 1-1. Refer to the extended power paragraphs in this section for a description of the power rating curves. Note that regardless of the power rating, input current is derated linearly from 2 volts down to 0 volts.

If your application requires a greater power or current capacity than one Electronic Load can provide, Electronic Loads can be connected in parallel in CC or CR mode.

Front Panel Description

The front panel includes a 12-character alphanumeric display, 11 status indicators, and three groups of keypads. Ordinarily

the alphanumeric display shows the input voltage and current. By using the key you can sequentially display input power, programming error codes, and protection-circuit status. If any protection circuits are active, that status will be

displayed first when you use the key. The alphanumeric display shows what function is being performed when you use the keypads.

The display also includes 11 annunciators that point to the 11 status labels printed on the front panel. These are: Constant Current, Constant Resistance, Constant Voltage, Transient, Unregulated, Protection, Error, Shift, Remote, Address, and Service ReQuest.

Three keys perform two functions, with the alternative function labeled in blue above the key. The alternative function is selected by first pressing the blue (shift) key, which turns on the Shift annunciator and enables the alternative function.

Remote Programming

Commands sent to the Electronic Load via GPIB are decoded by the primary microprocessor, which detects syntax and range errors. The primary processor also prescales data and maintains the status registers. Three commands have aliases for compatibility with other HPSL instruments. MODE can also be called FUNCtion, INPut can also be called OUTPut, and INSTrument can also be called CHANnel . OUTPut and INSTrument would typically be used if you want your program to refer to the Electronic Load in terms of the device or instrument under test. When using the CHANnel command, remember that the Electronic Load is always channel 1.

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Contents Operating Manual Agilent Part No Microfiche Part No Updated AprilCertification Safety Summary Manufacturer’s Declaration Safety SummarySymbol Description HerstellerbescheinigungPrinting History Table of Contents Remote Operation Local OperationCalibration Considerations for Operating in Constant Resistance Mode General Information What’s In This ManualReader Path OptionsSpecifications Safety Requirements6060B 6063B Regulation Constant Resistance Mode RangesModes Continuous Mode Pulsed ModeCurrent Readback Resolution Supplemental Characteristics 6060B 6063BTemperature Coefficient Bandwidth Maximum Readback CapabilityRate # High Range Step Low Range Step Transition Time Supplemental CharacteristicsMaximum VA Peak Inrush Current 2.5 a typical Current Slew RateOvershoot Resistance Slew RateModel 6063B Range Transient Current Level Width 6060B 6063B 10%With unit on With unit offPage Operation Overview IntroductionFront Panel Description Remote ProgrammingModes of Operation Local/Remote ControlProgrammable Features Constant Current CC ModeSoftware Current Limit Triggered Current LevelSlew Rate Constant Resistance CR ModeImmediate Resistance Level Triggered Resistance Level Constant Voltage CV ModeTransient Resistance Level Transient Operation Immediate Voltage LevelTriggered Voltage Level Transient Voltage LevelPulsed Transient Operation Hpsl Command DescriptionSelects the external trigger input source Selects the external trigger inputSelects pulsed transient operation Sets pulse width to 1 millisecondSlew Rate And Minimum Transition Time Triggering a preset levelTriggering a transient pulse TogglingRisetime Transition Limitation Input Current, Voltage, and Power MeasurementTransition Times and Slew Rates Short On/OffStatus Reporting Saving and Recalling SettingsReading Remote Programming Errors Input On/OffOvercurrent Protection FeaturesResetting Latched Protection OvervoltageReverse Voltage Control ConnectorOverpower OvertemperatureMonitor Outputs FaultExternal Programming Input Port On/Off Inspection Turn-On Checkout Location and CoolingCheck Line Voltage Line Voltage Fuse Agilent Part No Voltage Select SwitchesTurn-On/Selftest Connect The Power CordGpib Errors Input Errors Display Description ErrorGpib Connector Power TestController Connection AWG Rear Panel Connectors and SwitchesWire Size Strip back Gpib AddressInput Binding Post Control Connector Common Pins 3+S and -S IM and VMSense Switch Trigger ConnectorApplication Connections Parallel Connections Maximum Wire Lengths to Limit Voltage DropsZero-Volt Loading Connections 11. Local Sensing 13. Parallel Operation Page Local Operation Front Panel Controls and Indicators DescriptionControls and Indicators Description Function Keys Local Control Overview ∙ Short on Using The Function KeysTurning the Input On/Off Recommended Programming Sequence Key Display Setting the Mode of OperationSetting CC Values CC Programming Ranges FunctionExamples Setting CR Values Examples Setting CV Values Function Key Display Range of Values Continuous Pulse Train Programming RangesShorting The Input Using The System KeysDisplaying Error Codes Setting The Electronic Load’s Gpib AddressChanging Wake-up Settings Factory Default Settings Function 6060B 6063BRecalling the Factory Default Values Enter Enter/Output StatementsGpib Address OutputOutput 705 MEASCURR? Sending a Remote CommandRemote Programming Commands Getting Data BackSlew Rates ModesRanges Transient levelsRemote Programming Flowchart Sheet Remote Programming Flowchart Sheet CV Mode Example CC Mode ExampleCR Mode Example Pulsed Transient Operation Example Continuous Transient Operation ExampleConstant Current CC Hpsl Command Short FormOutput 705TRAN on Output 705INPUT on Remote Programming Ranges FunctionTransient Operation Constant Resistance CR6060B Constant Voltage CVPage Equipment Required for Calibration Equipment Characteristics Recommended ModelExample Programs Equipment RequiredCalibration Commands Example Program Calibration FlowchartsCalibration Information 6060B 6063B Supply Shunt Values SettingsCalibration Flowchart Calibration Flowchart Calibration Flowchart END if Program ListingPause WaitPrint Voltage Calibration Pause SubendElse Line ExplanationPage Considerations For Operating In Constant Resistance Mode Considerations For Operating In Constant Resistance ModeConsiderations For Operating In Constant Resistance Mode Index IndexIndex 24, 25, 26 Index Agilent Sales and Support Office Agilent Sales and Support OfficesManual Updates
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