Xantrex Technology PV225S-480-P Main Inverter Enclosure, Inductor Enclosure

Physical Characteristics

152607 1–7

Main Inverter Enclosure

The PV225S Main Inverter Enclosure is NEMA-3R rated and contains the po wer

distribution panel, the converter control unit (CCU2), and the powe r electronics

matrices. Also found within the Main Inverter Enclo sure are some of the system

protection devices (such as the sense and control po wer fuses).

Power Distribution Panel

This panel contains many of the El ectromechanical, protective, and control po wer

components necessary to support the opera tion of the PV225S.

Converter Control Unit (CCU2)

The CCU2 is a Digital Signal Processor (DSP) based contro l board that performs

numerous control and diagnostic functions associated with PV225S operation. Its

most significant tasks are control of PV225S el ectromechanical components and

power electronics converters, signal co nditioning for high voltage signal inputs

and communication with the Universal Front Panel Contr ol Unit, and system

sensors. The CCU2 also contains the necessary DC po wer supplies to support its

operation.

Power Electronics Matrices

The power electronics converters are loc ated at the top of the PV225S main

inverter enclosure. Both the left and right matrices a re comprised of six switching

transistors (IGBTs), transistor gate drive electronics, a laminated power bus, DC

capacitor bank, and an aluminum extrusion heatsink with a cooling fan. The fans

are located above each matrix heatsink.

The PV array is tied logically to the m atrices DC bus within the DC interface

enclosure. The embedded CCU2 control unit manages the transf er of power

between the DC bus and the utility grid by sending digit ized gating signals to the

IGBTs for producing a high-fidelity, sinusoidal output.

Inductor Enclosure

The Inductor Enclosure is NEMA-3R rated. It contains the ne cessary filter

components to ensure the PV225S line current meets IEEE- 519 (1992, Standard

Practices and Requirements for Harmonic Control in Electrical Power Systems)

and UL 1741 (2001, Static Inverters and Converters for use in Indepe ndent Power

Systems) harmonic distortion requirem ents. Mounted on both the right and left

side of the lower enclosure are inductor fans to allow cooling of the line filter

components within. This enclosure also serves as the mounting base for the

PV225S Main Enclosure.

Contents

Main Page Page Page About This Manual Purpose Scope Audience Organization Conventions Used CAUTION Abbreviations and Acronyms Related Information Page Important Safety Instructions SAVE THESE INSTRUCTIONS - DO NOT DISCARD WARNING: Lethal Voltage General Safety Precautions Personal Safety Safety Equipment Wiring Requirements CAUTION: Fire Hazard Operational Safety Procedures Lockout and Tag De-Energize/Isolation Procedure Interconnection Standards Compliance Page Contents Important Safety Instructions 1 Introduction 2 Operation 3 Commissioning 5 4 Troubleshooting Page Figures Page Tab les Page Page Operation Features Fixed Unity Power Factor Operation Peak Power Tracking Dynamic DC Minimum Operating Voltage Utility Voltage/Frequency Fault Automatic Reset Safety Features Anti-Island Protection PV Ground Fault Detection DC Over-voltage Detection Physical Characteristics Main Inverter Enclosure Power Distribution Panel Converter Control Unit (CCU2) Power Electronics Matrices Inductor Enclosure Page Communications Enclosure Operator Interface Controls Main Enclosure Door Interlock Switch On/Off Switch AC and DC Disconnect Switches Communication Features System Status and Fault Reporting Data Logging Communication Methods Universal Front Panel Control Unit (UFCU) PC Connection Methods Page Page GUI Software Features Page Description of System Operation Overview Faul ts Description of System Operation Return to Sleep State Figure 2-1 Operating States Flow Chart Operating States Power Tra cking Tra ns it io n Shutdown Faul t Manual Current Matrix Test Automatic Sleep Test Operator Interface UFCU Keypad Operation and LCD Display LCD Display - Initialization Screen Standard Display Menu Structure READ Menu To Display Any Operational Value in the READ Menu Operation 210 152607 Figure 2-5 Scrolling through the R Menu Table 2-2 R Menu Descriptions Table 2-2 R Menu Descriptions READ-by-ID Table 2-3 provides a list of the Data Logging Menu parameters. Table 2-3 Table 2-4 Table 2-4 provides a list of the Accumulated Values Menu parameters. Data Logging Menu WRITE Menu Changing and Displaying WRITE Menu Parameter Values Page Page Page Commanding Goal State Changes Setting the Date and Time Manual State Transitions Shutdown Matrix Test Shutdown Power Tracking Manual Current Power Tracking or Shutdown Automatic State Transitions Shutdown Power Tracking Shutdown Auto-restart Feature Energize Procedure (Startup) De-Energize/Isolation Procedure (Shutdown) Computer Communications with the PV225S Installing the Graphic User Interface (GUI) Software Minimum System Requirements Starting the Software Setup Program Starting the Setup Program Using Autorun Starting Setup Manually Starting Setup From a Command Prompt Model Specific Software Installation Page Page Running the GUI Remote/LAN Connection Page GUI Configuration - Adding Inverters Page Page Page GUI Help Page Page Page Page Commissioning Procedure Starting the Commissioning Test File Serial Number Veri fy AC Voltag e Verify DC Voltage Inspect Inductor Enclosure Apply Grid Voltage Front Panel Display Establish Communications with the GUI Confirm AC Operational Parameters Confirm DC Operational Parameters Confirm Power Tracker Configuration Operational Parameters Verify Door Interlock Functions Matrix Test Operate Inverter Completed Commissioning Page Page Faults and Fau lt Codes General Troubleshooting WARNING: Lethal Voltage Clearing Faults Manually Important:: Fault Code Descriptions Page Page Page Internal RAM error CPU error Page Page Page Page Page Page Page Maintenance Safety Operational Safety Procedures De-Energize/Isolation Procedure Lockout and Tag Preventative Maintenance Figure 5-1 54 152607 Inverter AC Terminal Locations in the Main Inverter Enclosure Figure 5-2 Utility AC Terminal Connections in the AC Interface Enclosure Page Periodic Maintenance Monthly Intervals or As Required Aluminum Extrusion Heatsinks Fan Operation Internal Circulation Fan Six-month Intervals Enclosure Seals Electrical Connections Inductor Enclosure Page Page System Specifications Table A-1 Environmental Specifications CAUTION: Equipment Damage Environmental Specifications Electrical Specifications Over Voltage, Under Voltage and Frequency Ranges Wire Gauge and Torque Requirements Page Schematics Appendix A 152812 13 REVISIONS D A-6 152607 152812 Schematics Appendix A A-8 152607 Figure A-4 PV225S Schematic for Converter Control Unit (152812 A3) 152812 Warranty and Product Information Xantrex Limited Warranty 2. What will Xantrex do? 3. What does this warranty not cover? 4. Product Disclaimer 5. Limitations to Product Disclaimer 6. Information Disclaimer 7. WARNING: LIMITATIONS ON USE PRODUCT REGISTRATION Page Index A C D E R S T