Manuals / Agilent Technologies / Power Tools / Welding System

Agilent Technologies 5749A Turn-On Check-Out, Before Check-Out, Constant Voltage Check, OVP Check

Models: 5751A 5744A 5743A 5750A 5749A 5752A 5747A 5742A 5748A 5741A 5745A 5746A

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3 Operating the Power Supply Locally

Turn-On Check-Out

Before Check-Out

Ensure that the power supply is configured as follows:

• The unit is connected to an appropriate AC source as

	described in chapter 2.
	• The POWER switch is in the off position.
	• Sense connector pins 1 and 2 are jumpered; sense connector
	pins 4 and 5 are jumpered.
	• All switches on Connector J2 are in the down position.
	SHOCK HAZARD Be aware that hazardous voltages can be present on the
WARNING
	output terminals. Do not set the output voltage above 40 VDC during the turn-
	on check-out procedure.

Constant Voltage Check

•Turn the POWER switch on.

•Turn the output on by pressing the OUT ON button. The green OUT ON indicator should be illuminated.

•The green CV indicator should also be illuminated. If the CC indicator is illuminated, rotate the current knob until the CV indicator becomes illuminated.

•Rotate the voltage knob while observing the DC VOLTS display. The output voltage should vary while the knob is turned. The voltage range is from zero to the maximum rated output for the power supply model.

OVP Check

•Rotate the voltage knob and set the output voltage of the unit to 50% of its full-scale rating or 30 volts, whichever is lower.

•Press the OVP/UVL button once so that the DC AMPS display indicates OUP. The DC VOLTS display shows the OVP level.

•Use the voltage knob and set the OVP level of the unit to 75% of its full-scale voltage rating or 40 volts, whichever is lower.

•Wait a few seconds until the DC VOLTS display returns to show the output voltage.

•Use the voltage knob and raise the output voltage of the unit until it approaches the OVP setting. Check to make sure that the output voltage cannot be set higher than the OVP setting.

•Press the OVP/UVL button again. Rotate the voltage knob and reset the OVP level of the unit to its maximum setting.

34	Series N5700 User’s Guide

Image 34

Agilent Technologies 5749A Turn-On Check-Out, Before Check-Out, Constant Voltage Check, OVP Check, On check-out procedure

Contents

User’s Guide Legal Notices Agilent Technologies, IncFrame or chassis terminal Safety NoticesOn supply Off supply This Book Contents 118 113116 124Quick Reference Output Features Agilent N5700 DC Power Supplies At a GlanceSystem Features Model Ratings Programmable FunctionsModel Voltage Current Range Front Panel At a Glance Limit indicator LAN indicatorOCP indicator Fine indicatorRear Panel At a Glance Enable/Disable control J2 Sense ConnectorSW1 Setup Switch Remote sense + Local sense + Not usedJ1 Analog Programming Connector Installation Models AccessoriesGeneral Information Items SuppliedInspecting the Unit Installing the UnitSafety Considerations EnvironmentCleaning Rack InstallationThan 6 mm into the sides of the unit Input Connections for 750W units Connecting the Line CordPower cord, resulting in fire Input Connections for 1500W unitsInstallation Shorted, whichever is greater Wire SizeTightened For 5 a For 10 a For 20A For 50A For 150APrevent loosening the connections or bending the bus-bars Output voltage of the power supplyLoad Connections for 6V to 60V Models Cross Section Resistance10 mm 0.39 Wire SizeLoad Connections for 80V to 600V Models TorqueLoad wires Output Voltage SensingRemote Sensing Local SensingPlug Type Load Considerations Multiple LoadsOutput Noise and Impedance Effects Inductive LoadsConnected in parallel Parallel ConnectionsGrounding the Output Local SensingSetting up the Slave Units Setting up the Master UnitRemote Sensing Series Connections Setting the Over-Voltage ProtectionSetting the Over-Current Protection Connected in seriesLocal Sensing Remote Sensing Separated and floated from each otherMating Plug J1 Connector ConnectionsVoltage of the power supply Extraction toolOperating the Power Supply Locally Before Check-Out On check-out procedureTurn-On Check-Out Constant Voltage CheckConstant Current Check UVL CheckOCP Check Constant Current Mode Constant Voltage ModeNormal Operation Over-Voltage Protection CV/CC Mode CrossoverCV/CC Signal Limit the sink current to less than 10mAUnder-Voltage Limit Over-Current ProtectionFront Panel Lock-Out Over-Temperature ProtectionPower-Fail Protection SYSTCOMMRLST, it cannot be unlocked from the front panelSafe-Start and Auto-Restart Output On/Off ControlsOUT on button Output Shut-Off TerminalsSW1 switch SO Signal Level Output Display Enable/Disable TerminalsSW1 switch ENA+/ENA- pins Output Display Prot Indicator Daisy-Chained Output Shut-down Power Supply OK SignalAnalog Programming of Output Voltage and Current Sense terminal, as it may damage the unitAnalog Programming Control Terminals Voltage Programming of Output Voltage and CurrentResistance Programming of Output Voltage and Current SW1 switch Voltage ProgrammingDown default Current ProgrammingDown default J1 pin Voltage Monitor Current Monitor External Monitoring of Output Voltage and CurrentPage Operating the Power Supply Remotely Automation-Ready CD-ROM included with this productGpib Interface Connecting to the InterfacesAutomation-Ready CD-ROM that is shipped with your product LAN Interface USB InterfaceVisa address is USB023912055serialnumber0INSTR Connecting to a Site LAN An example of a hostnameCAT5 Crossover Cable Connecting to a Private LANPrevious settings InstrumentLAN Communication Using the Web ServerEthernet Connection Monitoring Using Telnet Using SocketsConfiguring the LAN Parameters By the subnet mask setting Factory-shipped LAN Settings Using the Setup UtilityFactory-shipped non-volatile LAN settings Series N5700 User’s Guide Multiple Commands in a Message Scpi Commands an IntroductionSyntax Commands from Different Subsystems Message UnitCommand Terminators Common CommandsQueries Suffixes and Multipliers Parameter TypesNumeric Parameters Response Data TypesDevice Clear Scpi Command CompletionSubsystem is in the Initiated state Language Reference Subsystem Commands Scpi Command SummaryScpi Command Description Common Commands Command DescriptionCalibration Commands Commands will generate an errorMeasure Commands CALibrateSTATe Onoff ,password CALibrateSTATe?Output Commands OUTPutSTATe Onoff OUTPutSTATe?Source Commands Model V ratingMin. low limit Max. low limit Status Commands WTG Generation1024 256 Bit PositionBit Value Bit NameSTATusQUEStionableEVENt? 1024 512CLS Bit Position Bit Value 128SRE SRE? ESB = Event status byte summary MAV = Message availableSystem Commands SYSTemCOMMunicateTCPipCONTrol?TST? Trigger Commands ABORtPage Microsoft Visual C++ Microsoft Visual BasicMicrosoft Excel Output Programming Example Series N5700 User’s Guide Trigger Programming Example Series N5700 User’s Guide Page Appendix a Specifications Performance Specifications Agilent Models N5741A N5752A and N5761A N5772ARemote Sense Compensation Supplemental CharacteristicsProgramming Resolution Measurement Resolution Over-voltage ProtectionInterface Capabilities Series and Parallel CapabilitySavable states Environmental ConditionsOutline Diagram 43.6mmPage Appendix B Verification and Calibration Limits and does not need to be re-calibratedPerformance VerificationEquipment Required CalibrationElectronic Load Power SupplyMeasurement Techniques Current-Monitoring ResistorCV Load Effect Constant Voltage TestsVoltage Programming and Readback Accuracy Model you are checkingCV Source Effect CV NoiseTransient Recovery Time Current Programming and Readback Accuracy CC Load EffectCC Source Effect Test Record Form Agilent N5741A and N5761A Test Record Form Agilent N5742A and N5762A Agilent N5742A and N5762A Report No Date DescriptionTest Record Form Agilent N5743A and N5763A Agilent N5743A and N5763A Report No Date DescriptionTest Record Form Agilent N5744A and N5764A Agilent N5744A and N5764A Report No Date DescriptionTest Record Form Agilent N5745A and N5765A Agilent N5745A and N5765A Report No Date DescriptionTest Record Form Agilent N5746A and N5766A Agilent N5746A and N5766A Report No Date DescriptionTest Record Form Agilent N5747A and N5767A Agilent N5747A and N5767A Report No Date DescriptionTest Record Form Agilent N5748A and N5768A Agilent N5748A and N5768A Report No Date DescriptionTest Record Form Agilent N5749A and N5769A Agilent N5749A and N5769A Report No Date DescriptionTest Record Form Agilent N5750A and N5770A Agilent N5750A and N5770A Report No Date DescriptionAgilent N5751A and N5771A Report No Date Description Test Record Form Agilent N5751A and N5771AUse fixed resistor instead of load modules Test Record Form Agilent N5752A and N5772A Agilent N5752A and N5772A Report No Date DescriptionVoltage Programming and Measurement Calibration Calibration ProcedureCalibration Viattrtmovalue in the ViSetAttribute functionCurrent Programming and Measurement Calibration Appendix C Service Turn-on check out procedure Types of Service AvailableOperating Checklist Trouble-shooting guideSymptom Check Does the AC source voltage sag when a load is applied?Error List Error MessagesDisplaying the Scpi error queue ErrorData type error Command errorSyntax error Command header errorCommand Errors Query Interrupted Execution ErrorsQuery Error Query UnterminatedPage Appendix D Compatibility Result in unpredictable instrument behaviorDifferences In General DifferencesDescription Similar Scpi Command Compatibility Command SummaryCompatibility Command MEASVOLT? Index Initiate commands IndexSpecifications Over-voltage protection130 Series N5700 User’s Guide Address SafetyManufacturer’s Conforms with the following product standardsManual Updates