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Xantrex Technology XG 850 manual Offset Calibration

Models: XG 850

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Calibration and Troubleshooting

Offset Calibration

Offset calibration of the power supply provides the best accuracy in low- range input current.

To perform offset calibration:

1.Set the voltage source attached to the non-isolated current APG input to 10% of the nominal current level, in this case 0.400 V.

2.Turn the output power on.

3.Read the input voltage value from the voltmeter connected in step 2 of the gain calibration.

4.Type SCPI input current calibration command with voltage noted in step 3 as the parameter “data”.

For example, you would type :CAL:INP:ANAL:CURR 0.43. After performing offset calibration, it is highly recommended that you repeat gain calibration.

SCPI Command [:]CALibration[<channel>]:INPut:ANALog:CURRent{<voltme ter reading in volts>}

6-24	M370078-01

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Xantrex Technology XG 850 manual Offset Calibration

Contents

XG 850 Watt Series Page XG 850 Watt Series Programmable DC Power Supply Date and Revision Product Numbers FGAs firmware v1.09 and below Rack Mount Kit Part NumberPage Audience PurposeScope Conventions UsedFont Conventions Related InformationAcronyms SegmentImportant Safety Instructions Power Supply Safety MarkingsStandard Warnings Contents Local Operation Analog Programming APG and Isolated Analog Programming Isol Remote Operation Calibration and Troubleshooting Scpi Command Reference Error MessagesSpecifications Xvi Figures RS-232 Communication Cable with DB-25 Pinout Tables Tables Introduction Features and Options XG 850 Watt Models XG 850 Watt Series Voltage and Current RangesModel Output Voltage Output Current Front Panel 1XG 850 Watt Front PanelFront Panel Display and Controls 2Front Panel Display and ControlsRear Panel Connectors 3Rear Panel 6 V to 40 V ModelsDescription Page Installation Basic Setup Procedure 1Basic Setup ProcedureStep Description Action Reference When you first receive your unit, perform a physical check Inspecting and CleaningPeriodic Cleaning Initial InspectionPurchasing Rack Mount Kits Location and MountingRack Mounting VentilationConnecting AC Input Power AC Input Connector2Current Carrying Capacity for Load Wiring Selecting Load WiresLoad Wiring Insulation RatingMaximum Load Wiring Length For Operation With Sense Lines Noise and Impedance EffectsTo power off the power supply Powering the Power Supply On/OffTo power on the power supply Performing Functional TestsVoltage and Current Mode Operation Checks To perform the voltage and current mode operation checks40 V Models Connecting LoadsDC Output Connectors 60 V-150 V Models2Diode Placement Inductive Loads and BatteriesConnecting Single Loads Connecting Multiple LoadsConnecting Remote Sensing To connect the remote sense wiresInstallation Local Operation Using the Rotary Adjust/Enter Control Configuring Settings from the Front PanelUsing the 9-Position Mode Control IntroductionCoarse and Fine Adjustment Modes 1Select and Set from the Front Panel1Select and Set from the Front Panel Setting Volts and Amps Modes Navigating the Menu SystemTo access the tracking mode for entering voltage and current Normal Display Mode and Inactivity Timeout Front Panel3Front Panel Menu System Display Messages on the Front Panel 2Front Panel Display TextDisplay Text Text Description LE U Standard Operation Operating ModesConstant Voltage Mode Operation Constant Current Mode OperationAutomatic Mode Crossover 4Operating Modes To set the voltage set point VsetScpi command s for these instructions are To set the current set point IsetTo enable the output power Shipped Configuration Local Operation3Shipped Configuration To disable the output powerTo disable the auxiliary output Output Auto Start Mode Auto RestartTo enable on the auxiliary output To change the Auto Start modeAuxiliary Auto Start Mode To define the Auxiliary Auto Start modeAlarms and Errors 4Alarm Order of PrecedenceAlarm Precedence Output Maskable Display Latch Clearing a Flash Failure Alarm Clearing AlarmsClearing Triggered and Manual Alarms To clear a manual alarmFront Panel Alarm LED Clearing Automatic AlarmsAlarm Masking 5Alarm Mask Bit PositionsAlarm Bit Position Value Alarm Output Latching 6Alarm Latch Bit PositionsBit Alarm Position Value Setting Foldback Mode To set the foldback protection and foldback delay timeTo disable foldback protection Resetting Activated Foldback Protection Using Over Voltage Protection OVP Defining the OVP Set Point To define the OVP set pointUsing Under Voltage Protection UVP Over Current Protection OCP Defining the UVP Set PointTo define the UVP set point Resetting in Latch Mode Using Over Temperature Protection Lock OTPDefining the OTP Mode To define the OTP lockControlling the External Shutdown Function Using the External Shutdown FunctionActivating the External Shutdown Function To activate the shutdown functionDefining the Polarity of the External Shutdown Signal Defining the Interlock Mode Interlock FunctionHardware Malfunction Alarms Power On Status SignalCurrent Configuration Memory Settings 7Power Cycle Saved/Recalled Settings8User Accessible Saved/Recalled Settings User Setting Memory LocationsSaving User Setting Memory Locations To save user setting memory locationsRecalling User Setting Memory Locations To load user setting memory locationsLocal Lockout To enable local lockoutTo disable local lockout Enabling Local LockoutSYSTemchannelsREMoteSTATe 9Power Supply Default Settings Resetting the Power SupplyTo perform a soft reset Parameter SettingTo reset the power supply Using Multiple Power Supplies 5Split Supply Operation Configuring Multiple Supplies for Series Operation Connecting to the Load in Local Sensing ModeConnecting to the Load in Remote Sensing Mode 7Load Connections in Remote Sensing ModeSetting up the Master Unit Setting up the Slave UnitsSetting Over Voltage Protection OVP Setting Foldback Protection8Load Connections in Local Sensing Mode Page Isolated Analog Programming Isol Analog Programming APG of Output Voltage and Output Current Remote Programming Options Analog Monitor SignalsRelated APG Mode Reference Line Connector Name 1Monitor LinesAuxiliary Outputs 2Remote Programming OptionsControl of… Programming Scale Analog Programming APG Connector J1 PinFunction 3APG Pins and Functions J1 Pin Reference FunctionMaking Control Connections 2Inserting Screwdriver into Spring Terminal BlockWiring Analog Programming Mode Analog Programming With External Voltage SourceDeactivating APG Voltage Mode Voltage-Controlled Voltage APG SetupActivating APG Voltage Mode To deactivate the APG voltage modeScpi commands for these instructions are Query for Analog Voltage Input LevelDeactivating APG Current Mode Voltage-Controlled Current APG SetupActivating APG Current Mode To deactivate the APG current modeQuery for Analog Current Input Level 6Programming Output Voltage using an External Resistor 7Programming Output Current using an External ResistorResistive-Controlled Voltage APG Setup To activate APG voltage mode using an external resistorScpi command for these instructions are Resistive-Controlled Current APG Setup Query for Analog Current Input Level 8Voltage Readback Using APG Connector J1 Voltage and Current ReadbackIsolated Analog Programming Mode Isol AUX Output and Isolated Analog Programming Isol Connector4AUX Output and Isol Connector Pins and Functions J3 ComisolatedAnalog Programming APG and Isolated Analog Programming Isol Making Isol Control Connections Isol Programming With External Voltage SourceDeactivating Isol Voltage Mode Voltage-Controlled Voltage Isol SetupActivating Isol Programming Voltage Mode To deactivate the Isol voltage modeQuery for Isol Voltage Input Level Deactivating Isol Current Mode Voltage-Controlled Current Isol SetupActivating Isol Programming Current Mode To deactivate the Isol current modeQuery for Isol Current Input Level Analog Programming With External Resistor Resistive-Controlled Voltage Isol Setup Query for Isol Voltage Input Level Resistive-Controlled Current Isol Setup Activating Isol Resistive-Controlled Current SetupQuery for Isol Current Input Level Query Remote Control Source State Voltage and Current Readback IsolatedPage Remote Operation Remote Operation To configure remote control using RS-232 Hardware and Connection SetupConfiguring Remote Control Using RS-232 Remote Control ConnectorsDB-9 Pinouts 1Remote Control Connector Pins and Functions J4 and J61RS-232 Communication Cable with RJ-45 to DB-9 RJ-45 PinoutsRS-232 Communication Cable with RJ-45 to DB-25 DB-25 Pinout DB-25 PinoutsCompleting the Setup To complete the setup5DB-9 Pinouts Configuring Remote Control Using RS-485RS-485 Communication Cable with RJ-45 to DB-9 RJ-45 Plug PinoutsRS-485 Communication Cable with Two RJ-45s RJ-45 Plug on Slave UnitInstalling USB to Serial Converter and Serial Port Configuring Remote Control using the USB ConnectorSetting Up the PC to Use the USB Connection To download and install a virtual COM port VCP driver7Found New Hardware Wizard Verifying Installation 9Completing the New Hardware WizardTo verify that the device has been installed 10Device Manager11Communications Port COM1 Properties Complete the Setup Ethernet Enet or Gpib Connector Optional Multiple Power Supply Connections to RS-485 BusMultiple Power Supply Setup Master SetupSlave Setup Data Format Terminal ConfigurationSetting up a HyperTerminal connection End of Message14 USB Settings 15 Ascii Setup To select a communication port Data Rate Setting KbpsSelecting the Appropriate Communication Port To select the desired rateMultichannel Address Setting To set the addressRemote Interface Addressing Multichannel Commands Explained 8Rules for Multichannel ResponsesRoot command ALLaddr1, addr2, addr3,...command parameter Status Reporting in Scpi 16SCPI Status Reporting Model Status Registers Model from Ieee Questionable Status Register Summary QSR Error/Event Queue ERRStatus Byte 9Status Byte Summary RegisterStandard Event Status Summary ESB Request Service RQSMessage Available MAV Master Summary Status MSSService Request Enable Register Operation Status Register Summary OSRQuery the Status Byte Standard Event Status Enable Register Standard Event Status Register SesrStandard Event Status Register Bit Bit Weight Bit Name Description Summary of Standard Event Status RegisterWait-to-Continue Command Operation CompleteStandard Scpi Register Structure 19SCPI Register ModelOPERation Status Register 20Operation Status Register Fanout11OPERation Status Register OPERation SHUTdown Status Register OPERation SHUTdown PROTection Status RegisterCurrent SHare Sub-Register 14OPERation CSHare Status RegisterOperation Status Register Commands Current Sharing Sub-Register Commands Shutdown Sub-Register Commands Protection Sub-Register Commands QUEStionable Status Register 21SCPI QUEStionable Registers Fanout 15QUEStionable Status Register VOLTage Sub-Register TEMPerature Sub-Register17QUEStionable TEMPerature Status Register 16QUEStionable VOLTage Status RegisterQuestionable Status Register Commands Voltage Status Register Commands Temperature Status Register Commands Scpi Error/Event Queue Querying For the ErrorsQuerying For the Error Code Only Querying For the Number of Errors in the QueueReset command explicitly shall not affect the following Reset CommandReset command shall do the following CommandsClear Status Command Clear All Status RegistersScpi Preset Status Preset Values of User Configurable RegistersRegister Filter/Enable Preset Value Command Line Help System Querying Help for all Command HeadersHelp commands are SRE Querying Help for Legacy Command Headers Querying Help for Command Syntax Gets the responseSYSTHELPSYNT? Volt Locking and Unlocking the Front Panel Auto Sequence ProgrammingSetting Dwell Time Storing an Auto Sequence ProgramReadback and Troubleshooting an Auto Sequence Program Saving an Auto Sequence Program to FileTo save an Auto Sequence Program to a file Reloading an Auto Sequence Program To reload Auto Sequence program from fileRunning an Auto Sequence Program Deleting an Auto Sequence Program Repeating an Auto Sequence ProgramProgrep Progstat RUN To set the foldback mode, send the command Command Configure Other Protection MechanismsSetting the Foldback Mode To set the foldback delay, send the command CommandOver Temperature Protection Interlock Enable/DisableSave and Recall Set Analog Programming LevelSet Remote Programming Interface Protection Mask Enable Alarms 19Alarms Bit MaskPage Calibration Calibration and Troubleshooting Understanding the Problem Offset Error Programmed ValueMain Voltage and Current Calibration Principle Gain Calibration Offset CalibrationRecalibrate Gain 4Calibration Recalibrate GainCalibrating the Output Voltage To perform gain calibrationTo perform offset calibration Calibrating the Output Current CALibrationchannelOUTPutCURRentammeter reading in amps Over Voltage Protection Calibration To calibrate the over voltage protectionNon-isolated Analog Programming Calibration Non-isolated Voltage Monitoring CalibrationTo calibrate the non-isolated voltage monitoring Non-isolated Current Monitoring Calibration To calibrate the non-isolated current monitoringNon-isolated Voltage Programming of Voltage Calibration To calibrate the non-isolated voltage programming of voltageNon-isolated Resistive Programming of Voltage Calibration Non-isolated Voltage Programming of Current Calibration To calibrate the non-isolated voltage programming of currentNon-isolated Resistive Programming of Current Calibration Calibration Procedure for Isolated Modes Isolated Voltage Monitoring CalibrationTo calibrate the isolated voltage monitoring Isolated Current Monitoring Calibration To calibrate the isolated current monitoringIsolated Voltage Programming of Voltage Calibration To calibrate the isolated voltage programming of voltageIsolated Resistive Programming of Voltage Calibration To calibrate the isolated resistive programming of voltageIsolated Voltage Programming of Current Calibration To calibrate the isolated voltage programming of currentIsolated Resistive Programming of Current Calibration To calibrate the isolated resistive programming of currentOffset Calibration Calibrating the Input Voltage APG SignalGain Calibration To calibrate the VAP APG input gainCalibrating the Input Current APG Signal To calibrate the CAP APG input gain calibrationOffset Calibration Storing and Loading Calibration Parameters Restore Factory Calibration Unusual or Erratic Operation User DiagnosticsEmergency Shutdown An emergency, carry out these stepsTroubleshooting for Operators 1TroubleshootingSymptom Check Further Checks and Corrections SCPIReferenceCommand Scpi Conformance Information Ieee 488.2/SCPI Syntax and StyleScpi Command Hierarchy Using Scpi Commands Using Minimum and Maximum Using QueriesCommon Commands Terminating CharactersDiscrete Parameters Parameter TypesBoolean Parameters Numeric ParametersSpci Command Tree CALibrationINITiate PROGram SENSe SYSTem Save Scpi Command Summary Parameter Function Scpi Command Description Range QueryScpi Table A-2Readback Commands Table A-3SCPI Commands for Output Control Table A-4SCPI Commands for Calibration Calibrates the isolated ?NR1 Yes Voltage APG Calibrates the current ? NR1 Yes Voltage Table A-6SCPI Commands for Foldback Protection Table A-7SCPI Commands for Power Table A-9System Commands Select level for Voltage ?Level Yes Analog YYYY.V Table A-10Status Commands See -12 on Query the Operation Yes Query the Operation Yes Query the Operations Event Yes Preset Enable See -15 on Yes Questionable See -15 on Query Yes Questionable ESE,*ESE? Table A-11Protection Commands Function Scpi Command DescriptionPROGramchannelSTEPDWEL1 Page Error Messages Error Messages Command Error List Table B-1Command Error ListError Message Description Execution Error List Execution Error ListDevice-Specific Error List Device-Specific Error ListQuery Error List Query Error ListSpecifications CElectrical Specifications for XG 850 Watt AC Line Input Specifications for XG 850 Watt CRemote Operation Table C-2Remote OperationCommon Specifications for All Models Output Performance SpecificationsSpecifications M370078-01 Figure C-1XG 850 Watt Mechanical Dimensions 6 to 40 V Models 17.6 447.5 mm 214.2 mm 43.6 mm 22 in .5 mm Warranty and Product Information WarrantyDisclaimer ProductReturn Material Authorization Policy ExclusionsReturn Procedure Out of Warranty ServiceInformation About Your System Index IX-2 M370046-01 M370046-01 IX-3 IX-4 Page Xantrex Technology Inc 800 733 5427 toll free North America 858 450 0085direct