Xantrex Technology XDC 30-200SL, XDC 6000, XDC 80-75SL, XDC 600-10SL manual Current Sharing, Overview

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TM-XDSL-01XN.book Page 19 Tuesday, November 5, 2002 3:22 PM

Current Sharing

Overview

Section 3. Current Sharing

Overview

Power supplies equipped with the CANbus interface will allow current sharing between units connected in parallel. Current sharing can use a maximum of 5 supplies, including the master. All power supplies must be the same model. Every unit must have a unique address, if they do not then they will automatically readdress themselves.The slave units are shipped with the current share feature already enabled.

No Display

No Display

No Display

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Figure 3.1Connections for Current Share Operation

Theory of Power supplies may be connected in parallel to supply a large current to a load. Operation Typically, because of differences in the load connections, each power supply may

provide different amounts of current to the load. The function of current sharing is to even out the current provided by each power supply.

When multiple power supplies are configured for current sharing, the master supply will make small changes to the slave’s voltage and current settings to equalize the current draw from each.

Note: Slave units will not current share with master units with firmware previous to version 5.000.

Release 1.0

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Contents XDC 6000 Watt Series Slave Power Supply TM-XDSL-01XN.book Page ii Tuesday, November 5, 2002 322 PM XDC 6000 Watt Series Limited Warranty What does this warranty not cover? Disclaimer Product Release Release 1.0 Information About Your Power SupplyPower Supply Safety Unit complies with Canadian EMC requirements of ICES-001 Approvals CE MarkViii Revisions Who Should Use This ManualAbout This Manual Table of Contents Table of Contents Xii Overview FeaturesSlave Front Panel Front PanelAC Input Power AC Input Wire AC Input ConnectorAC Wire Input Connection Attaching the AC Input Wires Overview Current SharingSetup Current Share Configuration Setup Sharing Network Operation SpecificationsAppendix A. Specifications and Characteristics Electrical Specifications-Summary Table A.3Specifications for 80V to 600V Models AC Line Input Voltage Operating Ranges AC Line Input SpecificationsProgramming Range for Voltage, Current, and Power Output Performance SpecificationsTypical Measurement Resolution Typical 31 kHz 62 kHz output ripple Minimum 4 ms at full load International Approvals Environmental SpecificationFigure A.1 Power Supply Dimensions Mechanical SpecificationTM-XDSL-01XN.book Page 33 Tuesday, November 5, 2002 322 PM Xantrex Technology Inc