Xantrex Technology XFR 2800 manual Output Current Monitor Circuit Calibration

Page 87

Output

Current

Monitor

Circuit

Calibration

Calibration

Calibrating for Readback Accuracy

1.Ensure that the power supply is turned OFF. Disconnect any load.

2.Set SW1 switch 6 OPEN to select 0-5 V output current monitor range, CLOSED for 0-10 V.

3.Connect the shunt and DVM across the power supply output to read the output current. Connect a second DVM between the rear panel J2 connector terminals 12 (output current monitor) and 11 (current monitor signal return).

4.Turn the current control fully counter clockwise, then turn on the power supply.

5.Set the power supply’s output current to 1% of the model-rated output. See Note.

6.Adjust the output current monitor offset (R394) until the monitor DVM indicates 1% of the readback scale. (50 mVdc for 0-5 V readback or 100 mVdc for 0-10 Vdc readback.)

7.Set the power supply output current to the model-rated output.

8.Adjust the output current monitor range (R383) until the monitor DVM indicates 100% of the readback scale. (5 Vdc for 0-5 V readback or 10 Vdc for 0-10 Vdc readback.)

Repeat this procedure until the monitor signal is adjusted to power supply specifications (see Section 1) or to the accuracy that your application requires.

Note:Calculate the required DVM reading using V= IR where V is the DVM reading, I is the current, and R is the DC shunt resistance.

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Contents XFR 2800 Watt Series Programmable DC Power Supply Page XFR 2800 Watt Series Phone 604 422 Toll Free North America 800 667 Fax 604 421 How do you get service?What does this warranty cover and how long does it last? What will Xantrex do?What does this warranty not cover? Disclaimer Product Model Number Serial Number Purchased From Purchase Date Information About Your Power SupplyPower Supply Safety Who Should Use This Manual Main SectionsManual Revisions About This Manual Power Supply Safety MarkingsContents Calibration Section Local Operation RemoteList of Figures List of Figures List of Tables List of Tables Features and Options DescriptionModel Voltage Range Current Range Features and Specifications Front Panel Controls Power Supply Front PanelRear Panel Connectors and Switch Power Supply Rear Panel Shows the functions assigned to each SW1 switch HIGH=OFF HIGH=ON Switch Function Open ClosedProgramming and Monitoring J2 Connector Vrmt Connector Reference Name FunctionMaking J2 Connections WiringSpecifications Models 300 12-220 20-130 33-85 40-70 Features and Specifications Models 60-46 100-28 150-18 300-9 600-4 Features and Specifications Input Conditions Additional SpecificationsRemote Programming Monitoring Additional FeaturesEnvironmental Specifications Output Connector Mechanical SpecificationsDimensional Drawings Basic Setup Procedure IntroductionStep # Description Action Reference Initial Inspection Periodic Cleaning Inspection, Cleaning, and PackagingReturning Power Supplies to the Manufacturer Shipping or Storage Carton Label Packaging for Shipping or StorageRack Mounting Location, Mounting, and VentilationAC Voltage Range Frequency AC Input PowerAC Input Connector Voltage Selection AC InputWire Size Ratings Cable Outside Diameter AC Input Wire ConnectionAC Input Cover and Strain Relief Equipment Required Voltage Mode Operation CheckPower-on Check Functional TestsCurrent Mode Operation Check Front Panel Function Checks Load Wiring Wire Size Maximum Current aLoad Connection Making Load Connections Maximum Load Wire Length for 1 V Line DropOutput Strain Relief and Cover Typical Load Connection Hardware To 600 V Models Output Voltage ConnectorSingle Load with Local Sensing Default Multiple Loads with Local Sensing 10Multiple Loads with Remote Sensing Local and Remote Sensing Sense WiringTerminal Name Function 11J10 Sense ConnectorUsing Remote Sensing 12 shows a sample setup for using remote sensing Operating Modes Automatic Crossover Standard OperationStandard Operation Local OperationConfiguration ShippedMode Setting Output Voltage Current Limit OVP Using Over Voltage Protection OVPResetting the OVP Circuit Controlling Shutdown Function via Connector Using the Shutdown FunctionLED Configuring Multiple Supplies for Series Operation Using Multiple SuppliesConfiguring ParallelSupplies for Parallel Operation of Multiple Supplies Supplies for Split Supply OperationSplit Supply Operation of Multiple Supplies Positive-negative SupplyLocal Operation Switch SW1-8 OTP Shutdown Selection Description Over Temperature Protection OTPAbbreviated References Used in Table User DiagnosticsEmergency Shutdown Unusual or Erratic OperationSymptom Check Further Checks and Corrections Remote Operation Control Programming Scales Remote Analog Programming ProcedureOptions Remote OperationRemote Operation Power Supply Settings for Different Programming Sources Connecting Programming Sources to J2 Connector Remote Monitoring of Output Voltage and Current Environment Calibration SetupService PrecautionsAccessing Calibration Potentiometers Programming and Monitoring Calibration Locations Voltage Programming Circuit Calibration Calibrating for Programming AccuracyCurrent Limit Programming Circuit Calibration Output Voltage Monitor Circuit Calibration Calibrating for Readback AccuracyOutput Current Monitor Circuit Calibration Calibration Page Xantrex Technology Inc