Description of System Operation | Xantrex Technology PV100S-208

Operation

Description of System Operation

Overview

The PV100S is a fully automated grid-interactive photovoltaic inverter. System startup, system shutdown, PV power tracking, and fault detection scenarios are all governed and monitored by the CCU2 controller within the PV100S. Manual interaction or control of the inverter is necessary only in the event of a system fault. Additionally, the following conditions govern operation of the PV100S.

•Stable utility AC voltage and frequency as specified in Table A-3must be present for all states of operation.

•PV voltage as specified in Table A-3must be present.

•With the exception of the Matrix Test state, the ON/OFF switch, located on the front door of the PV100S main inverter enclosure, must be switched to the ON position for all operating states.

•The door of the main inverter enclosure must be closed with the door interlock switch in the engaged position.

•Both the AC and DC Disconnect switches must be in the ON or closed position.

•Fault conditions must not be present.

Faults

Fault states are automatic from any state of operation. In the event of a fault condition, the PV100S will immediately stop processing power and execute an immediate orderly shutdown, open both the main AC and DC contactors, and remain in a faulted state until the fault is remedied and cleared (manually or automatically).

Most faults are latching, and only those faults associated with grid disturbances are auto-clearing and thus enable the PV100S to restart after a 5 minute delay period. All fault conditions arising from within the PV100S are reported to the UFCU (Universal Frontpanel Control Unit). The 4-line LCD on the UFCU will display a hexadecimal value (fault code) and a brief text description of the fault.

Once the cause of the fault has been identified and corrected, and it is determined to be safe to proceed, PV100S faults may be cleared from the UFCU keypad or via the remote GUI.

See “Clearing Faults Manually” on page 4–3for instructions on this procedure.

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Xantrex Technology PV100S-208 manual Description of System Operation, Overview, Faults

Contents

PV100S 100 kW Grid-Tied Photovoltaic Inverter Page PV100S 100 kW Grid-Tied Photovoltaic Inverter Date and Revision Audience PurposeScope Organization Conventions Used Following conventions are used in this guide Abbreviations and Acronyms Related InformationPage Important Safety Instructions Safety Equipment General Safety PrecautionsPersonal Safety Wiring Requirements Safety Operational Safety Procedures Lockout and Tag De-Energize/Isolation Procedure Interconnection Standards ComplianceTo isolate the PV100S Xii Contents Operation Troubleshooting Preventative MaintenanceCommissioning Specifications Figures Figures Tables Page Introduction Operation Features Fixed Unity Power Factor Operation Peak Power Tracking Utility Voltage/Frequency Fault Automatic Reset 1Maximum Peak Power Tracking Anti-Island Protection Safety FeaturesPV Ground Fault Detection DC Over-voltage Detection Physical Characteristics 2PV100S Major Components Main Inverter Enclosure Power Distribution PanelPower Electronics Matrix Inductor Enclosure DC Interface Enclosure Transformer EnclosureAC Interface Enclosure Communications Enclosure 4AC Interface Enclosure and Transformer Enclosure Main Enclosure Door Interlock Switch Operator Interface Controls On/Off Switch Operator Interface Controls Communication Features AC and DC Disconnect Switches System Status and Fault Reporting Data logging features includeData Logging Communication Methods Universal Front Panel Control Unit Ufcu PC Connection Methods 10PC Connections in the Communications Enclosure Pots Access Wireless Access Ethernet LAN Access Direct Access GUI Software Features Specific list of available parameters Operation Faults Description of System OperationOverview 1Operating States Flow Chart Power Tracking Operating StatesTransition Manual Current FaultShutdown Matrix Test Operator Interface Ufcu Keypad Operation and LCD Display LCD Display Initialization Screen Standard Display 4Operator Interface Menu Diagram Menu Structure Read Menu To Display Any Operational Value in the Read Menu 5Scrolling through the Read Menu 2Read Menu Descriptions Shut Down Sleep To use the Read-by-ID Feature READ-by-ID 3Data Logging Menu Write Menu Changing and Displaying Write Menu Parameter Values To change Write Menu parameters Minimum Grid Time Delay for PV Enable Peak Power Commanding Goal State Changes To change the Goal State Setting the Date and Time To change the Date and Time Automatic State Transitions Shutdown → Power Tracking → ShutdownManual State Transitions Shutdown → Matrix Test → Shutdown Auto-restart Feature Any State → FaultTo clear the fault Energize Procedure Startup De-Energize/Isolation Procedure ShutdownTo start up the PV100S Computer Communications with the PV100S 9GUI Interface Main Menu Screen Starting the Setup Program Using Autorun Installing the Graphic User Interface GUI SoftwareStarting the Software Setup Program Starting Setup Manually Starting Setup From a Command Prompt 10Starting Setup from a Command Prompt Model Specific Software Installation To continue with the GUI software installation 13GUI Setup Start Window 15GUI Setup Progress Indicator Window Running the GUI Remote/LAN Connection Direct Connection 18GUI Interface Screen if Connected Directly GUI Configuration Adding Inverters To configure the inverters in the GUI 21Operational Configuration Screen Limits 23Operational Configuration Screen Power Tracker 26Connection Configuration Screen General GUI Help 27GUI Help TopicsPage Commissioning Commissioning Procedure Starting the Commissioning Test FileTo commission the PV100S Serial Number Verify AC VoltageVerify DC Voltage Inspect Inductor Enclosure Apply Grid VoltageFront Panel Display Establish Communications with the GUI Confirm AC Operational Parameters Confirm Power Tracker Configuration Operational Parameters Confirm DC Operational ParametersVerify Door Interlock Functions Thank You for choosing Xantrex The Smart Choice for Power Operate InverterCompleted Commissioning Page Troubleshooting Faults and Fault Codes General TroubleshootingRespond to any PV100S alarm or fault as follows Clearing Faults Manually 1LCD showing Fault Code Fault Code Descriptions 1Fault Codes Fault Code Descriptions 1Fault Codes Internal RAM error 1Fault Codes 1Fault Codes Fpga PreventativeMaintenance Maintenance Safety Operational Safety ProceduresDe-Energize/Isolation Procedure Lockout and Tag TB4-A 3PV Terminal Locations Periodic Maintenance Monthly Intervals or As Required Electrical Connections Six-month IntervalsEnclosure Seals Inductor EnclosurePage Specifications System Specifications Environmental Specifications Electrical Specifications Over Voltage, Under Voltage and Frequency Ranges Wire Gauge and Torque Requirements TB2 Figure A-1Electrical Diagram sample Schematics Appendix a Schematics Appendix a Schematics Appendix a This page intentionally left blank Warranty and Product Information Xantrex Limited Warranty Product Disclaimer Product Registration Warranty and Return WA-4 Rev C Index IX-2 Rev C Page Xantrex Technology Inc