HP 6624A, 6623A, 6621A manual Output Control Keys

Page 34

Table 3-1. Controls and Indicators (continued)

Number

Controls/lndicators

Description

Page

 

 

 

 

7

Output Control Keys

OUTPUT SELECT - Selects one of the output channels

36, 37,

 

(These twelve keys are

for local control or display. This key allows the channels

83, 83

 

output dependent).

to be selected in forward (ç ) or reverse (è) sequence.

 

 

 

VSET - Displays the selected output's present voltage

37, 62,

 

 

setting. The setting can be changed using the numeric

63, 83

 

 

entry keys.

 

 

 

ISET - Displays the selected output's present current

37, 62,

 

 

setting. The setting can be changed using the numeric

63, 83

 

 

entry keys.

 

 

 

OUTPUT ON/OFF - Toggles the selected output on and

63, 83

 

 

off. When off, "DISABLED" appears on the display.

 

 

 

OVSET - Displays the selected output's overvoltage trip

37, 63,

 

 

point. The setting can be changed using the numeric entry

83

 

 

keys.

 

 

 

OVRST - Resets the selected output's overvoltage

37, 63,

 

 

crowbar (the cause of the overvoltage must be removed

83

 

 

before reset is successful).

 

 

 

OCP - Toggles the selected output's overcurrent

37, 63,

 

 

protection circuit on and off.

83

 

 

OCRST - Resets the selected output's overcurrent

37, 63,

 

 

condition and returns the output to its previous settings

83

 

 

(the cause of the overcurrent must be removed before reset

 

 

 

is successful).

 

 

 

METER - Returns the display to the metering mode from

83

 

 

any other mode (e.g. VSET). In the metering mode, the

 

 

 

measured output voltage and current of the selected output

 

 

 

are displayed.

 

 

 

DLY - Displays the reprogramming delay for the

69, 83

 

 

specified channel. The setting can be changed using the

 

 

 

numeric entry keys.

 

 

 

UNMASK - Displays the present setting of the mask

63, 83

 

 

register for the specified channel. The setting can be

 

 

 

changed using the numeric entry keys.

 

 

 

FAULT - Displays the contents of the fault register for

68, 68,

 

 

83

 

 

the specified channel. A bit gets set in the fault register

 

 

when the corresponding bit is set in both the status and

 

 

 

mask registers. Pressing the FAULT key also clears the

 

 

 

fault register.

 

 

 

 

 

34 Getting Started

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Contents Operating Manual HP Part NoCertification Safety Summary Safety Summary Symbol DescriptionDeclaration of Conformity EMCAppendix C--Command Summary Installation ProceduresAppendix A--Calibration Procedure Appendix D--Error MessagesTable Of Contents Remote Operation Local OperationCalibration Command SummaryError Messages Programming With The Series 200/300 ComputerPage Introduction Safety ConsiderationsGeneral Information Instrument and Manual IdentificationDescription AccessoriesOutput Combinations Available Model Output Low Range Values High Range Values Basic OperationHP-IB Board Output Boards Qualifying Conditions SpecificationsDefinitions Output Response Characteristics Specifications Source EffectSupplemental Characteristics Outputs Low High Voltage Temperature CoefficientAC Input Power and Current Outputs Low High Voltage Programming ResolutionReadback Resolution Command Processing Time see FigureOutput Impedance Safety Agency ComplianceDimensions all models Low Voltage High Voltage 80 W Low VoltageGeneral Information General Information General Information General Information Initial Inspection InstallationLocation and Cooling Input Power Requirements Line FuseLine Fuses 100/120 2110-0342 220/240 2110-0055Power Cord Line Voltage ConversionHP-IB Interface Connector Page Getting Started Front Panel Controls and IndicatorsTurning On Your Supply LCL key HP-IB Status AnnunciatorsAlphanumeric LCD Power Supply StatusAnnunciators System Control KeysOutput Control Keys Numeric Entry Keys Line SwitchNormal Self Test Indications Checking Out Your Supply Using Local Control Sample Self-Test Failure DisplayOvervoltage Test Voltage TestCurrent Test OCP Introduction To Remote OperationIset Enter Enter/Output StatementsReading the HP-IB Address Sending a Remote CommandOutput AddrGetting Data From The Supply Often Used CommandsDisp a Disp a Returning the Supply to Local Mode Output Connections and Operating Information Output RangesOperating Quadrants Protection FeaturesRange Selection Typical Output Range Characteristics Connecting the Load Page Feet Wire Bundled 10 a 20 aCross Section Meters Area in mm2 Multiple Loads Remote Voltage SensingPositive and Negative Voltages Remote Voltage Sensing Remote Sense ConnectionsProgramming Response Time with an Output Capacitor Output Type FormulaOutput Noise Considerations Open Sense LeadsOvervoltage Trigger Connections External Trigger CircuitEquivalent Internal OV Trigger Circuit Battery Charging Power Supply Protection ConsiderationsParallel Operation Maximum Allowable Voltage Setting CV OperationCC Operation Remote SensingSeries Operation 13. Series Connections with Local Sensing CV OperationSpecifications for Series Operation 14. Series Connections with Remote SensingPage Page HP-IB Operation Remote OperationInterface Function HP-IB Address Selection Programming Syntax Power-On Service Request PONNumeric Data Sheet 1 of 2. Syntax Forms for Power Supply Commands Sheet 2 of 2. Syntax Forms for Power Supply Commands Iset Fault ?Vset OvsetPage Power Supply Commands Initial ConditionsVoltage Programming Current ProgrammingRange Switching Overvoltage OV Protection Output On/OffOVSET? Overcurrent Protection OCP Multiple Output Storage & RecallClear Command Status ReportingUNR +CC ASTS?Unmask 2,XXX FAULT?UNMASK? Bit Assignment of the Serial Poll RegisterService Request Generation SRQ? PON ?RQS Bit Reprogramming DelayDisplay On/Off Other Queries Explanation Front PanelResponse Code TEST? Responses Code ExplanationPage Local Control Of Output Functions Local ModeLocal Operation GeneralSetting Voltage Setting CurrentResetting Overcurrent Protection Setting Overvoltage ProtectionResetting Overvoltage Protection Displaying the Contents of the Fault RegisterLocal Control Of System Functions Setting the Reprogramming DelaySetting the Supplys HP-IB Address ConditionSTO Enter Displaying Error MessagesAddr Enter RCL EnterPage Calibration Procedures Test Equipment and Setup RequiredFigure A-1. Calibration Setup General Calibration Procedure Are not stored. Exercise care when moving the leads Clear Voltmeter Output Buffer Calibration Program10 ! Calibration Example PauseDisp END of Calibration Program Input ANY More Outputs to CALIBRATE? Y or N,X$Fnend Page Page Path Names Programming With a Series 200/300 ComputerVoltage and Current Programming Voltage and Current Programming With Variables Voltage and Current ReadbackService Request and Serial Poll Programming Power Supply RegistersPrint OUTPUT1 is in CV Mode END if Present StatusPrint Overvoltage on Output #1 Enable IntrOFF Intr Print Overvoltage on Output #2Error Detection Programming Outputs Connected In Parallel Stored Operating StatesInput Enter Voltage LIMIT,V Input Enter Operating VOLTAGE,V1Programming Outputs Connected In Series Input Enter the Desired Current Limit POINT,ITable C-1. Command Summary Command SummaryCommand Description Table C-l. Command Summary PON? ROM?Previously Table D-l. Power-On Self Test Error Message Error Codes and MessagesPower-On Self Test Messages Error Responses Test ResponsesTable D-2. Error Responses Error Code Message Explanation ERR? query ERR keyTable D-3. TEST? Responses Response Code Explanation TEST? queryPage Manual Backdating Make Changes6621A Generally Applicable AnnotationsII. CE92 Product Specific Annotations 6623AFar East Or contactEurope Latin America

6624A, 6621A, 6623A specifications

The HP 6623A, 6621A, and 6624A are precision DC power supplies widely recognized for their reliability and performance in various laboratory and industrial applications. These models are part of HP's 662X series, designed to cater to the needs of engineers, researchers, and technicians who require accurate power sources for their testing and development activities.

The main features of the HP 6623A, 6621A, and 6624A include their high stability, low ripple, and excellent load regulation, ensuring that the output voltage and current remain stable during testing. The power supplies provide multiple output channels, allowing users to power multiple devices simultaneously. The flexibility in setting voltage and current levels makes these models ideal for a wide range of applications, including semiconductor testing, device characterization, and system integration.

One of the standout technologies in the HP 662X series is the use of smart design techniques that minimize noise and enhance output performance. These power supplies incorporate advanced feedback mechanisms to maintain steady output, even under varying load conditions. Additionally, they feature programmable outputs, which means users can adjust the output levels through a connected computer or control system, streamlining the testing process and improving efficiency.

The HP 6623A model offers three independent outputs, with total power capabilities of 40 watts. It includes a 0-20V output, which can deliver up to 2A of current, along with two additional outputs that are adjustable. The 6621A provides a single output option, delivering a maximum of 20V and 2A, making it well-suited for simple applications where a single power source is required. In contrast, the HP 6624A stands out with its four independent output channels, providing a total of 60 watts, making it the most versatile of the three models.

Characteristics of these power supplies include user-friendly interfaces, allowing for easy configuration and monitoring of settings. LED indicators provide real-time feedback on voltage and current levels, enabling users to quickly assess the performance of their tests. Moreover, built-in protection features safeguard both the power supply and the connected devices from overvoltage and overcurrent conditions.

Overall, the HP 6623A, 6621A, and 6624A power supplies embody advanced engineering and design, making them invaluable tools for professionals looking for high-quality, reliable power sources for their electronic testing needs.
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