Xantrex Pv225S 480 P Users Manual 152607_rev B
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2015-02-03
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PV225S-480-P Operation and Maintenance Manual PV225S 225 kW Grid-Tied Photovoltaic Inverter PV225S 225 kW Grid-Tied Photovoltaic Inverter Operation and Maintenance Manual About Xantrex Xantrex Technology Inc. is a world-leading supplier of advanced power electronics and controls with products from 50 watt mobile units to one MW utility-scale systems for wind, solar, batteries, fuel cells, microturbines, and backup power applications in both grid-connected and stand-alone systems. Xantrex products include inverters, battery chargers, programmable power supplies, and variable speed drives that convert, supply, control, clean, and distribute electrical power. Trademarks PV225S 225 kW Grid-Tied Photovoltaic Inverter is a trademark of Xantrex International. Xantrex is a registered trademark of Xantrex International. Other trademarks, registered trademarks, and product names are the property of their respective owners and are used herein for identification purposes only. Notice of Copyright PV225S 225 kW Grid-Tied Photovoltaic Inverter Operation and Maintenance Manual© August 2005 Xantrex International. All rights reserved. Disclaimer UNLESS SPECIFICALLY AGREED TO IN WRITING, XANTREX TECHNOLOGY INC. (“XANTREX”) (a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION. (b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE, WHETHER DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK. Date and Revision August 2005 Revision B Part Number 152607 Contact Information Telephone: 1 800 670 0707 (toll free North America) 1 360 925 5097 (direct) Fax: 1 800 994 7828 (toll free North America) 1 360 925 5143 (direct) Email: customerservice@xantrex.com Web: www.xantrex.com About This Manual Purpose The purpose of this Operation and Maintenance Manual is to provide explanations and procedures for operating, maintaining, and troubleshooting the PV225S 225 kW Grid-Tied Photovoltaic Inverter. Installation instructions are available in the PV225S 225 kW Grid-tied Photovoltaic Inverter Planning and Installation Manual. Scope This Manual provides safety guidelines and information about operating and troubleshooting the unit. Audience This Manual is intended for anyone who needs to operate the PV225S 225 kW Grid-Tied Photovoltaic Inverter. Operators must be familiar with all the safety regulations pertaining to operating high-voltage equipment as dictated by local code. Operators must also have a complete understanding of this equipment’s features and functions. Organization This Manual is organized into five chapters and one appendix. Chapter 1, “Introduction” contains information about the features and functions of the PV225S 225 kW Grid-Tied Photovoltaic Inverter. Chapter 2, “Operation” contains information on the basic operation of the PV225S 225 kW Grid-Tied Photovoltaic Inverter. Chapter 3, “Commissioning” contains information on safely commissioning the PV225S 225 kW Grid-Tied Photovoltaic Inverter. Chapter 4, “Troubleshooting” contains information and procedures for troubleshooting the PV225S 225 kW Grid-Tied Photovoltaic Inverter. It provides descriptions of common situations and errors that may occur and provides possible solutions for resolving fault conditions. It also provides instructions for clearing faults manually, if required. Chapter 5, “Preventative Maintenance” contains information and procedures for performing preventative maintenance on the PV225S 225 kW Grid-Tied Photovoltaic Inverter. Appendix A provides the environmental and electrical specifications for the PV225S 225 kW Grid-Tied Photovoltaic Inverter. 152607 iii About This Manual Conventions Used The following conventions are used in this guide. WARNING Warnings identify conditions or practices that could result in personal injury or loss of life. CAUTION Cautions identify conditions or practices that could result in damage to the unit or other equipment. Important: These notes describe things which are important for you to know, but not as serious as a caution or warning. This Manual contains information for the PV225S-480-P 225 kW Grid-Tied Photovoltaic Inverter. Throughout the manual it will be referred to as the PV225S, unless otherwise noted. iv 152607 About This Manual Abbreviations and Acronyms CCU2 Converter Control Unit 2 CFM Cubic Feet per Minute CW Clockwise DSP Digital Signal Processor FPGA Field Programmable Gate Array GUI Graphical User Interface IEEE Institute of Electrical and Electronics Engineers IGBT Insulated Gate Bipolar Transistor IPM Intelligent Power Module kcmil 1000 circular mils LAN Local Area Network POTS Plain Old Telephone Service PSL Phase-Shift Loop PV Photovoltaic UFCU Universal Frontpanel Control Unit Related Information You can find more information about Xantrex Technology Inc. as well as its products and services at www.xantrex.com. 152607 v vi Important Safety Instructions SAVE THESE INSTRUCTIONS - DO NOT DISCARD This manual contains important safety instructions for the PV225S that must be followed during installation and maintenance procedures. WARNING: Shock Hazard Read and keep this Operation and Maintenance Manual for future reference. Before installing the PV225S, read all instructions, cautionary markings, and all other appropriate sections of this manual. Failure to adhere to these warnings could result in severe shock or possible death. Exercise extreme caution at all times to prevent accidents. WARNING: Shock Hazard The PV225S enclosures contain exposed high voltage conductors. The enclosure doors should remain closed with the latches tightened, except during maintenance or testing. These servicing instructions are for use by qualified personnel who meet all local and state code requirements for licensing and training for the installation of Electrical Power Systems with AC and DC voltage to 600 volts. To reduce the risk of electric shock, do not perform any servicing other than that specified in the installation instructions unless you are qualified to do so. Do not open the cabinet doors if extreme moisture is present (rain or heavy dew). WARNING: Lethal Voltage In order to remove all sources of voltage from the PV225S, the incoming power must be de-energized at the source. This may be done at the main utility circuit breaker and by opening the AC Disconnect and the DC Disconnect Switches on the PV225S. Review the system configuration to determine all of the possible sources of energy. In addition, allow 5 minutes for the DC bus capacitors, located on the ceiling of the cabinet, to discharge after removing power. 152607 vii Safety General Safety Precautions 1. When installing the PV225S use only components recommended or sold by Xantrex. Doing otherwise may result in a risk of fire, electric shock, injury to persons, and will void the warranty. 2. Do not attempt to operate the PV225S if it has been dropped, or received more than cosmetic damage during transport or shipping. If the PV225S is damaged, or suspected to be damaged, see the Warranty section of this manual. 3. To reduce the risk of electrical shock, lock-out and tag the PV225S before attempting any maintenance, service, or cleaning. Personal Safety Follow these instructions to ensure your safety while working with the PV225S. Safety Equipment Authorized service personnel must be equipped with standard safety equipment including the following: • • • • • • Safety glasses Ear protection Steel-toed safety boots Safety hard hats Padlocks and tags Appropriate meter to verify that the circuits are de-energized (600 Vac and DC rated, minimum) Check local safety regulations for other requirements. Wiring Requirements 1. All wiring methods and materials shall be in accordance with the National Electrical Code ANSI/NFPA 70. When sizing conductors and conduits interfacing to the PV225S, both shall be in accordance with the National Electric Code ANSI/NFPA 70, as well as all state and local code requirements. 2. Use copper conductors only with insulation rated for 90 °C. 3. The PV225S has a three-phase output. It is marked with this symbol: 4. The AC power conductor wiring interfacing with the AC terminals in the Transformer Enclosure are located at T6-X1, T6-X2, and T6-X3. These terminals should be tightened to a torque value of 420 in-lb (47.5 Nm). Conductors terminated to these terminals must use a crimp-on type ring viii 152607 Safety terminal or compression lug. The terminals can accommodate up to two conductors per phase. See the PV225S 225 kW Grid-tied Photovoltaic Inverter Planning and Installation Manual for the location of these terminals. 5. The AC power conductor wiring interfacing with the AC terminals in the Main Inverter Enclosure are located at TB5, TB6, and TB7. These terminals are to be tightened to a torque value of 375 in-lb (42.4 Nm). The terminals will accept a conductor size of 350 kcmil and can accommodate up to six conductors per phase. See Figure 5-1 on page 5–4 for the location of these terminals. 6. The AC power conductor wiring interfacing with the AC terminals in the AC Interface Enclosure are located at S1-2T1, S1-4T2, and S1-6T3. These terminals should be tightened to a torque value of 310 in-lb (35.0 Nm). See Figure 5-2 on page 5–4 for the location of these terminals. Also see the cautionary note in the PV225S 225 kW Grid-tied Photovoltaic Inverter Planning and Installation Manual regarding hardware length. 7. The AC neutral conductor from the utility is terminated in the AC Interface Enclosure at the TB11 terminal. This terminal requires the use of a crimp-on type ring terminal or compression-type lug and should be tightened to a torque value of 228 in-lb (25.7 Nm). See Figure 5-2 on page 5–4 for the location of these terminals. 8. The DC power conductor wiring interfacing with the DC terminals at S2-6, K2-6T3, and TB4 are to be tightened to a torque value of 600 in-lbs (67.8 Nm). These terminals will accept a conductor size of 600 kcmil, and can accommodate up to four conductors per pole at S2-6 and K2-6T3 and up to two conductors at TB4. Keep these cables together as much as possible and ensure that both cables pass through the same knockout and conduit fittings, thus allowing any inductive currents to cancel. See Figure 5-3 on page 5–5 for the location of these terminals. 9. This product is intended to be installed as part of a permanently grounded electrical system per the National Electric Code ANSI/NFPA 70. A copper ground rod must be installed within three feet of the PV225S enclosure. This is the single point earth ground for the inverter system. The single point ground for the system is to be made at the AC ground bus bar (TB12) in the AC Interface Enclosure. This terminal requires the use of a crimp-on type ring terminal or compression-type lug and should be tightened to a torque value of 420 in-lb (47.5 Nm). 10. The equipment grounds on the PV225S is marked with this symbol: 11. AC overcurrent protection for the utility interconnect (Grid-tie) must be provided by the installers as part of the PV225S installation. CAUTION: Fire Hazard In accordance with the National Electrical Code, ANSI/NFPA 70, connect only to a circuit provided with 400 amperes maximum branch circuit overcurrent protection for the PV225S. 152607 ix Safety Operational Safety Procedures Never work alone when servicing this equipment. A team of two is required until the equipment is properly de-energized, locked-out and tagged, and verified deenergized with a meter. Thoroughly inspect the equipment prior to energizing. Verify that no tools or equipment have inadvertently been left behind. Lockout and Tag Safety requirements mandate that this equipment not be serviced while energized. Power sources for the PV225S must be locked-out and tagged prior to servicing. Each energy source should have a padlock and tag installed on each energy source prior to servicing. WARNING: Shock Hazard Review the system schematic for the installation to verify that all available energy sources are de-energized. DC bus voltage may also be present. Be sure to wait the full 5 minutes to allow the capacitors to discharge completely. The PV225S can be energized from both the AC source and the DC source. To ensure that the inverter is de-energized prior to servicing, lockout and tag the PV225S using the following procedure. 1. Open, lockout, and tag the incoming power at the utility main circuit breaker. 2. Open, lockout, and tag the AC Disconnect Switch (S1) on AC interface assembly. See Figure 1-8 on page 1–12 for the location of the AC Disconnect Switch. 3. Open, lockout, and tag the DC Disconnect Switch (S2) on DC interface assembly. See Figure 1-8 on page 1–12 for the location of the DC Disconnect Switch. 4. Using a confirmed, accurate meter, verify all power to the inverter is deenergized. A confirmed, accurate meter must be verified on a known voltage before use. Ensure that all incoming energy sources are de-energized by checking the following locations. a) Inverter Terminals: TB5, TB6, TB7 (Phase A, B, C) See Figure 5-1 on page 5–4. b) Utility Terminals: Top of S1-2T1, S1-4T2, S1-6T3 See Figure 5-2 on page 5–4. c) PV Terminals: Bottom of S2-6, K2-6T3, TB4 (PV+, PV-, GND) See Figure 5-3 on page 5–5. x 152607 Safety De-Energize/Isolation Procedure The following procedure should be followed to de-energize the PV225S for maintenance. WARNING The terminals of the DC input may be energized if the PV arrays are energized. In addition, allow 5 minutes for all capacitors within the main enclosure to discharge after disconnecting the PV225S from AC and DC sources. To isolate the PV225S: 1. Turn the ON/OFF switch to the OFF position. 2. Open the DC Disconnect Switch. 3. Open the AC Disconnect Switch. 4. Open the utility connection circuit breaker. 5. Install lockout devices on the utility connection circuit breaker and DC Disconnect Switch. Interconnection Standards Compliance The PV225S has been tested and listed by Underwriters Laboratories to be in compliance with UL 1741 Static Inverters And Charge Controllers For Use In Photovoltaic Power Systems, as well as IEEE-929-2000 Recommended Practice For Utility Interface of Photovoltaic (PV) Systems. IEEE-929-2000 provides guidance regarding equipment and functions necessary to ensure compatible operation of photovoltaic systems which are connected in parallel with the electric utility. UL1741 is the standard applied by Underwriters Laboratory to the PV225S to verify it meets the recommendations of IEEE-929-2000. Refer to both documents for details of these recommendations and test procedures. 152607 xi xii Contents Important Safety Instructions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - vii 1 Introduction Operation Features- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2 Fixed Unity Power Factor Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2 Peak Power Tracking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–3 Dynamic DC Minimum Operating Voltage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–4 Utility Voltage/Frequency Fault Automatic Reset - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–4 Safety Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–5 Anti-Island Protection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–5 PV Ground Fault Detection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–5 DC Over-voltage Detection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–5 Physical Characteristics - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–6 Main Inverter Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7 Power Distribution Panel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7 Converter Control Unit (CCU2) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7 Power Electronics Matrices - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7 Inductor Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7 DC Interface Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8 Transformer Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8 AC Interface Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8 Communications Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–9 Operator Interface Controls - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10 Main Enclosure Door Interlock Switch - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10 On/Off Switch - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–11 AC and DC Disconnect Switches - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–12 Communication Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–12 System Status and Fault Reporting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–13 Data Logging - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–13 Communication Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–14 Universal Front Panel Control Unit (UFCU) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–14 PC Connection Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–15 POTS Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–16 Wireless Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–16 Ethernet LAN Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–17 Direct Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–17 GUI Software Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–18 152607 xiii Contents 2 Operation Description of System Operation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2 Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2 Faults - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2 Operating States - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–4 Power Tracking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–4 Transition - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–4 Shutdown - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5 Fault - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5 Manual Current - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5 Matrix Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5 Automatic Sleep Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5 Operator Interface- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–6 UFCU Keypad Operation and LCD Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–6 LCD Display - Initialization Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–7 Standard Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–7 Menu Structure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–8 Read Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–9 Write Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–15 Commanding Goal State Changes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–20 Setting the Date and Time - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–21 Manual State Transitions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–22 Automatic State Transitions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–22 Auto-restart Feature - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–23 Energize Procedure (Startup) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–24 Computer Communications with the PV225S - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–25 Installing the Graphic User Interface (GUI) Software - - - - - - - - - - - - - - - - - - - - - - - - - - -2–26 Minimum System Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–26 Starting the Software Setup Program - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–26 Starting the Setup Program Using Autorun - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–26 Starting Setup Manually - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–26 Starting Setup From a Command Prompt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–27 Model Specific Software Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–28 Running the GUI - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–31 Remote/LAN Connection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–31 Direct Connection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–32 GUI Configuration - Adding Inverters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–33 GUI Help - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–37 xiv 152607 Contents 3 Commissioning Commissioning Procedure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–2 Starting the Commissioning Test File - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–2 Serial Number - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–3 Verify AC Voltage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–3 Verify DC Voltage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–3 Inspect Inductor Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–4 Apply Grid Voltage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–4 Front Panel Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–4 Establish Communications with the GUI - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–5 Confirm AC Operational Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–5 Confirm DC Operational Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–6 Confirm Power Tracker Configuration Operational Parameters - - - - - - - - - - - - - - - - - - - - - 3–6 Verify Door Interlock Functions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–6 Matrix Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–6 Operate Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–7 Completed Commissioning - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–7 4 Troubleshooting Faults and Fault Codes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–2 General Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–2 Clearing Faults Manually - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–3 Fault Code Descriptions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–4 5 Preventative Maintenance Maintenance Safety - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–2 Operational Safety Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–2 De-Energize/Isolation Procedure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–2 Lockout and Tag - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–3 Periodic Maintenance- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6 Monthly Intervals or As Required - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6 Aluminum Extrusion Heatsinks - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6 Fan Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6 Internal Circulation Fan - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6 Inductor Enclosure Cooling Fans - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6 Six-month Intervals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–7 Enclosure Seals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–7 Electrical Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–7 Inductor Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–7 152607 xv Contents A Specifications System Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Environmental Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Electrical Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Over Voltage, Under Voltage and Frequency Ranges - - - - - - - - - - - - - - - - - - - - - - - - - - Wire Gauge and Torque Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Warranty and Product Information Index xvi A–2 A–2 A–3 A–3 A–4 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - WA–1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - IX–1 152607 Figures Figure 1-1 Figure 1-2 Figure 1-3 Figure 1-4 Figure 1-5 Figure 1-6 Figure 1-7 Figure 1-8 Figure 1-9 Figure 1-10 Figure 1-11 Figure 1-12 Figure 1-13 Figure 1-14 Figure 2-1 Figure 2-2 Figure 2-3 Figure 2-4 Figure 2-5 Figure 2-6 Figure 2-7 Figure 2-8 Figure 2-9 Figure 2-10 Figure 2-11 Figure 2-12 Figure 2-13 Figure 2-14 Figure 2-15 Figure 2-16 Figure 2-17 Figure 2-18 Figure 2-19 Figure 2-20 Figure 2-21 Figure 2-22 Figure 2-23 152607 Maximum Peak Power Tracking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–4 PV225S Major Components - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–6 DC Interface Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8 AC Interface Enclosure and Transformer Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - 1–9 PC Connections in the Communications Enclosure- - - - - - - - - - - - - - - - - - - - - - - - - - 1–9 PV225S Operator Interface Components- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10 On/Off Switch (S3) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–11 AC and DC Disconnect Switches- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–12 LCD Display and UFCU Location - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–14 PC Connections in the Communications Enclosure- - - - - - - - - - - - - - - - - - - - - - - - - 1–15 POTS Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–16 Wireless Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–16 LAN Access- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–17 Direct Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–17 Operating States Flow Chart - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–3 The Universal Front Panel Control Unit (UFCU) and LCD - - - - - - - - - - - - - - - - - - - - 2–6 Initialization Screens - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–7 Operator Interface Menu Diagram - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–8 Scrolling through the Read Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–10 Read-by-ID Feature - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–13 State Transition Diagram - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–20 LCD showing Fault Code - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–23 GUI Interface Main Menu Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–25 Staring Setup from a Command Prompt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–27 GUI Splash Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–28 GUI Setup Welcome Window - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–28 GUI Setup Start Window - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–29 GUI Setup Program Group Window- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–29 GUI Setup Progress Indicator Window - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–30 GUI Setup Start Window - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–30 GUI Interface Screen if Connected Remotely - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–31 GUI Interface Screen if Connected Directly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–32 Detail Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–33 Contact Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–33 Operational Configuration Screen - Limits - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–34 Operational Configuration Screen - PV- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–34 Operational Configuration Screen - Power Tracker- - - - - - - - - - - - - - - - - - - - - - - - - 2–35 xvii Figures Figure 2-24 Figure 2-25 Figure 2-26 Figure 2-27 Figure 4-1 Figure 5-1 Figure 5-2 Figure 5-3 Figure A-1 Figure A-2 Figure A-3 Figure A-4 xviii Connection Configuration Screen - General - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–35 Connection Configuration Screen - Telephone Fault Configuration - - - - - - - - - - - - - -2–36 Connection Configuration Screen - General - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–36 GUI Interface Screen if Connected Directly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–37 LCD showing Fault Code - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–3 Inverter AC Terminal Locations in the Main Inverter Enclosure - - - - - - - - - - - - - - - - 5–4 Utility AC Terminal Connections in the AC Interface Enclosure - - - - - - - - - - - - - - - - 5–4 PV Terminal Locations - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–5 Electrical Diagram (sample)- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–5 PV225S Schematic for Main Power Distribution (152812 A1) - - - - - - - - - - - - - - - - - A–6 PV225S Schematic for Control Power Distribution (152812 A2) - - - - - - - - - - - - - - - A–7 PV225S Schematic for Converter Control Unit (152812 A3)- - - - - - - - - - - - - - - - - - - A–8 152607 Tables Table 2-1 Table 2-2 Table 2-3 Table 2-4 Table 2-5 Table 4-1 Table A-1 Table A-2 Table A-3 Table A-4 Table A-5 152607 Scrolling through the Read Menu Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–9 Read Menu Descriptions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–11 Data Logging Menu- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–14 Accumulated Values Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–14 Write Menu Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–16 Fault Codes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–4 Environmental Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A–2 Electrical Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A–3 Over/Under Voltage and Over/Under Frequency Ranges - - - - - - - - - - - - - - - - - - - - - -A–3 AC Terminal Wire Gauge, Bolt Size, and Torque Values - - - - - - - - - - - - - - - - - - - - -A–4 DC Terminal Wire Gauge, Bolt Size, and Torque Values - - - - - - - - - - - - - - - - - - - - -A–4 xix xx 1 Introduction Chapter 1, “Introduction” contains information about the features and functions of the PV225S 225 kW Grid-Tied Photovoltaic Inverter. Introduction Operation Features The PV225S 225 kW Grid-Tied Photovoltaic Inverter is a UL 1741 listed, utility interactive, three-phase power conversion system for grid-connected photovoltaic arrays with a power rating of 225 kW. Designed to be easy to install and operate, the PV225S automates start-up, shutdown, and fault detection scenarios. With user-definable power tracking that matches the inverter to the array and adjustable delay periods, users are able to customize startup and shutdown sequences. Multiple PV225S inverters are easily paralleled for larger power installations. The PV225S power conversion system consists of a pulse-width modulated (PWM) inverter, switch gear for isolation and protection of the connected AC and DC power sources, and a high efficiency custom Wye:Wye isolation transformer. Housed in a rugged NEMA-3R rated, powder-coated steel enclosure, the PV225S incorporates sophisticated Intellimod® (IPM) Insulated Gate Bipolar Transistors (IGBT’s) as the main power switching devices. An advanced, field-proven, Maximum Peak Power Tracker (MPPT) integrated within the PV225S control firmware ensures the optimum power throughput for harvesting energy from the photovoltaic array. The advanced design of the PV225S includes an EMI output filter and the main AC contactor located electrically on the utility side of the isolation transformer. The location of the main AC contactor, and the ability to de-energize the isolation transformer during times of non-operation, greatly reduces the night-time tare losses consumed by an idle isolation transformer. An integrated soft-start circuit precludes nuisance utility-tie circuit breaker trips as the result of isolation transformer inrush current. Additionally, the PV225S integrated controller contains self-protection features including over and under voltage and frequency safeguards. An integral anti-island protection scheme prevents the inverter from feeding power to the grid in the event of a utility outage. The PV225S includes a local user interface comprised of an ON/OFF switch, keypad, and 4-line, 80 character LCD display. A user-friendly Graphic User Interface (GUI) provides a remote interface for operator interrogation of PV225S system status, control, metering/data logging and protective functions within the PV225S. The status, control, and logging features are also supported by the choice of three communication mediums, allowing the information to be accessed or commanded remotely. Fixed Unity Power Factor Operation The Xantrex PV Series of grid-tied inverters maintains unity power factor during operation. The control software constantly senses utility voltage, and constructs the output current waveform to match the utility voltage. The PV line of inverters is not capable of operation without the presence of normal utility voltage, nor is it capable of varying the output power factor off unity. 1–2 152607 Operation Features Peak Power Tracking An advanced, field-proven, Maximum Peak Power Tracker (MPPT) algorithm integrated within the PV225S control software ensures the optimum power throughput for harvesting energy from the photovoltaic array. The peak power voltage point of a PV array can vary, primarily depending upon solar irradiance and surface temperature of the PV panels. This peak power voltage point is somewhat volatile, and can easily move along the I-V curve of the PV array every few seconds. The MPPT algorithm allows the PV225S to constantly seek the optimum voltage and current operating points of the PV array, and maintain the maximum peak PV output power. Accessible via the UFCU, there are five user settable parameters that control the behavior of the maximum peak power tracker within the PV225S. As show in Figure 1-1 on page 1–4, user settable parameters include: • • • • • PPT V Ref (ID# 37), I PPT Max (ID#42), PPT Enable (ID# 44), PPT Rate (ID# 45), and PPT V Step (ID# 46). Upon entering the Power Tracking mode, it takes approximately 20 seconds for the PV225S to ramp the PV voltage to the “PPT V Ref” setpoint regardless of the actual PV voltage. With the “PPT Enable” set to “0” (power tracker disabled), the PV225S will regulate the DC Bus at the “PPT V Ref” setpoint. Regulating the DC bus means drawing more or less current out of the PV array to maintain this desired voltage. With the “PPT Enable” set to “1” (power tracker enabled), followed by the expiration of the “PPT Rate” (MPPT decision frequency), the MPPT will reduce the reference voltage by an amount equal to the “PPT V Step” value. At this point the MPPT will compare the amount of AC output power produced to the previous amount of AC power produced by the PV225S. If the output power has increased, the next change made (after “PPT Rate” has again expired) to the reference voltage, will be in the same direction. Conversely, if the power comparison proves undesirable, the power tracker will reverse the direction of the change to the “PPT_V Step”. The MPPT algorithm within the PV225S will then continue this ongoing process of “stepping and comparing” in order to seek the maximum power throughput from the PV array. The changes made by the MPPT to the reference voltage are restricted to ± 20% of “PPT V Ref” and by the maximum and minimum PV input voltage (600 and 300 volts respectively). Also, the MPPT will not attempt to produce power greater than that allowed by the “I PPT Max” setpoint. If available PV power is above the maximum allowable power level of the PV225S, the MPPT will increase voltage as needed to maintain output power below rated maximum. 152607 1–3 Introduction Optimization of the PV225S MPPT will result in an increase in energy production. The user is encouraged to study the PV array’s I-V curves and to adjust the MPPT user settable parameters accordingly. Figure 1-1 Maximum Peak Power Tracking Dynamic DC Minimum Operating Voltage The PV225S employs a unique approach to the minimum DC input voltage for operation. The CCU2 constantly monitors and calculates an average of the AC utility input voltage, thereby adjusting the required minimum DC input voltage threshold to optimize the sinusoidal AC output current waveform. Given a nominal input voltage of 208 Vac, the minimum DC input voltage threshold is 300 Vdc. On a transient basis, the PV225S does have the ability to adjust the minimum DC input voltage threshold to less than 300 Vdc. Utility Voltage/Frequency Fault Automatic Reset In the event of a utility voltage or frequency excursion outside of preset limits, the PV225S will stop operation and display a fault at the operator interface. Once the utility voltage has stabilized within acceptable limits for a period of at least 5 minutes, the PV225S will automatically clear the fault and resume normal operation. Voltage and frequency fault setpoints are detailed later in this section. 1–4 152607 Safety Features Safety Features Anti-Island Protection A condition referred to as "Islanding" occurs when a distributed generation source (such as the PV225S Grid-tied Photovoltaic Inverter) continues to energize a portion of the utility grid after the utility experiences an interruption in service. This type of condition may compromise personnel safety, restoration of service, and equipment reliability. The PV225S employs a method for detecting the islanding condition using a Phase-Shift-Loop (PSL). This method is implemented in the CCU2 to prevent islanding of the PV225S. The CCU2 continuously makes minor adjustments to the power factor phase angle above and below unity. In the event of a utility interruption or outage, these adjustments destabilize the feedback between the inverter and the remaining load, resulting in an over/under frequency or voltage condition. Upon detection of such a condition, the PV225S then performs an immediate orderly shutdown and opens both the main AC and DC contactors. The fault condition will remain latched until the utility voltage and frequency have returned to normal for at least 5 minutes. This method has been extensively tested and proven to exceed the requirements of IEEE-929 (Recommended Practices for Utility Interface of Photovoltaic [PV] Systems) and UL-1741 (Static Inverters and Converters for use in Independent Power Systems). PV Ground Fault Detection The PV225S is equipped with a ground fault detection circuit by means of a Hall-effect current transducer (CT8). This circuit is active when the PV array is properly grounded. In the event of a ground fault exceeding 10 amps DC, the PV225S will execute an immediate orderly shutdown, open both the main AC and DC contactors, and report a ground fault on the LCD of the UFCU. The PV225S will remain faulted until the ground fault is remedied and the advisory is cleared at the operator interface. For additional information, see Chapter 4, “Troubleshooting”. DC Over-voltage Detection In the event of DC voltage greater than 600 Vdc, the PV225S will execute an orderly shutdown and will report a fault to the operator interface. If DC voltage remains greater than 600 Vdc, the PV225S may be irreparably damaged. See Chapter 4, “Troubleshooting” for further information on this fault condition. 152607 1–5 Introduction Physical Characteristics The PV225S comes in two modules comprised of six enclosures to house the electronics described above. The first module includes the Main Inverter Enclosure, Inductor Enclosure, DC Interface Enclosure, and Communications Enclosure. The second module includes the Transformer Enclosure and AC Interface Enclosure. These components are identified in Figure 1-2. Power Electronics Communications Enclosure AC Interface Enclosure Main Inverter Enclosure DC Interface Enclosure Transformer Enclosure Inductor Enclosure Figure 1-2 PV225S Major Components 1–6 152607 Physical Characteristics Main Inverter Enclosure The PV225S Main Inverter Enclosure is NEMA-3R rated and contains the power distribution panel, the converter control unit (CCU2), and the power electronics matrices. Also found within the Main Inverter Enclosure are some of the system protection devices (such as the sense and control power fuses). Power Distribution Panel This panel contains many of the Electromechanical, protective, and control power components necessary to support the operation of the PV225S. Converter Control Unit (CCU2) The CCU2 is a Digital Signal Processor (DSP) based control board that performs numerous control and diagnostic functions associated with PV225S operation. Its most significant tasks are control of PV225S electromechanical components and power electronics converters, signal conditioning for high voltage signal inputs and communication with the Universal Front Panel Control Unit, and system sensors. The CCU2 also contains the necessary DC power supplies to support its operation. Power Electronics Matrices The power electronics converters are located at the top of the PV225S main inverter enclosure. Both the left and right matrices are 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 matrices DC bus within the DC interface enclosure. The embedded CCU2 control unit manages the transfer of power between the DC bus and the utility grid by sending digitized gating signals to the IGBTs for producing a high-fidelity, sinusoidal output. Inductor Enclosure The Inductor Enclosure is NEMA-3R rated. It contains the necessary 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 Independent Power Systems) harmonic distortion requirements. 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. 152607 1–7 Introduction DC Interface Enclosure The DC Interface Enclosure is NEMA-3R rated. The DC interface serves as the connection interface between the PV array and the PV225S. This enclosure is where the DC Disconnect Switch and DC contactor reside. CAUTION: Equipment Damage The fuses within the PV225S are intended for protecting the PV225S control circuitry only. They are not intended to provide protection for the PV array or external cabling. DC Disconnect Switch DC Interface Enclosure Figure 1-3 DC Interface Enclosure Transformer Enclosure The Transformer Enclosure is NEMA-3R rated. The main isolation transformer inside electrically isolates the PV225S from the utility power. Voltage-sensing circuit wiring and soft-start circuit pass through the Transformer Enclosure from the AC Interface Enclosure to the Main Inverter Enclosure. AC Interface Enclosure The AC Interface Enclosure is NEMA-3R rated. The AC interface serves as the connection between the utility and the isolation transformer. This enclosure is where the AC line fuses and AC Disconnect Switch reside. Also included in the AC Interface Enclosure are the main AC contactor and transformer soft-start circuit. 1–8 152607 Physical Characteristics AC Interface Enclosure AC Disconnect Switch Transformer Enclosure Figure 1-4 AC Interface Enclosure and Transformer Enclosure Communications Enclosure The Communications Enclosure is NEMA-4 rated. It contains the hardware to enable a personal computer to connect to the unit, either directly or remotely. Hardware could include a POTS Connect Kit, a Wireless Connect Kit, or an Ethernet LAN kit, or a Direct Connect Kit. Communications Enclosure RS232/FO Converter MultiTech 56K Modem SA2 Surge Arrestor POTS connection hardware is shown in this photo. Figure 1-5 PC Connections in the Communications Enclosure 152607 1–9 Introduction Operator Interface Controls Operator interface controls are located on the front door of the main inverter enclosure. These controls include an ON/OFF Switch, 4-line LCD display and keypad called the Universal Frontpanel Control Unit (UFCU). Additionally there is an AC and DC Disconnect on the AC Interface Enclosure and the DC Interface Enclosure Doors. Communication Enclosure DC Disconnect Switch LCD Display AC Disconnect Switch Universal Frontpanel Control (UFCP) DC Interface Enclosure ON/OFF Switch AC Interface Enclosure (AC Side View) Main Inverter Enclosure (Front View) Figure 1-6 PV225S Operator Interface Components Main Enclosure Door Interlock Switch The front door of the PV225S main enclosure is equipped with an interlock switch to preclude operation while the front door is open. Opening the door of the main inverter enclosure will initiate an immediate controlled shutdown of the PV225S and opens both the main AC and DC contactors. The main AC and DC contactors cannot be closed unless the door’s interlock is in the engaged position. The PV225S is prevented from being restarted until the door is again closed and the switch is in the engaged position. It is required that the PV225S main enclosure door must be locked during normal operation. The door interlock switch does NOT remove all hazardous voltages from inside the inverter. Before attempting to service the PV225S, follow the de-energize Lockout and Tag procedure on page 5–3. 1–10 152607 Operator Interface Controls WARNING: Shock Hazard Disengaging the main enclosure door interlock switch does NOT remove all hazardous voltages from inside the inverter. Before attempting to service the PV225S, follow the de-energize Lockout and Tag procedure on page 5–3. On/Off Switch The PV225S incorporates a maintained position ON/OFF Switch (S3) located on the front door of the main enclosure. Under normal conditions, the ON/OFF switch is in the ON position. Turning the switch to the OFF position will initiate an immediate controlled shutdown of the PV225S and open both the main AC and DC contactors within the unit. The main AC and DC contactors cannot be closed unless the switch is in the ON position. The PV225S is prevented from being restarted until the ON/OFF switch is turned back to the ON position. WARNING: Shock Hazard Turning the ON/OFF switch to the OFF position does NOT remove all hazardous voltages from inside the inverter. Before attempting to service the PV225S, follow the de-energize Lockout and Tag procedure on page 5–3. Figure 1-7 ON/OFF Switch (S3) 152607 1–11 Introduction AC and DC Disconnect Switches Both AC and DC interface enclosures are equipped with lockout hasps for personnel safety. The enclosure doors should not be opened while the PV225S is operating. The switch handles and shafts provide a door interlock for both the AC and DC interface enclosures. The doors cannot be opened when the switch is in the ON position. The DC Disconnect Switch (S2) is equipped with an auxiliary contact block which enables the switch to be used as a load break DC disconnect. In the event the DC Disconnect Switch is opened while the PV225S is processing power from the PV array, the early-break contact block will signal the CCU2 (Converter Control Unit 2) to stop processing power prior to opening the DC Disconnect Switch. Additionally, opening the DC Disconnect Switch will cause the PV225S to execute an immediate orderly shutdown, open both the main AC and DC contactors, and report a PV disconnect fault on the LCD of the UFCU. DC Disconnect Switch (S2) AC Disconnect Switch (S1) AC Interface Enclosure DC Interface Enclosure Figure 1-8 AC and DC Disconnect Switches Communication Features The PV225S provides two types of information to the user: • • system status and/or fault information, and data logging information. System status and fault information can be accessed using the Universal Front Panel Control Unit (UFCU) or a personal computer (PC) using the Xantrex Solar Graphic User Interface (GUI) software. Data logging requires the use of a PC using the GUI software. 1–12 152607 Communication Features System Status and Fault Reporting Basic system status and all fault conditions rising from within the PV225S are reported to the UFCU. The unit stores the time and details of all faults in non-volatile memory. The 4-line LCD will display a hexadecimal value and a brief text description of the fault. This information can also be accessed using a personal computer using the GUI software either directly or remotely. Types of status information include: • • • • • • • • • • • Current Operating State or Goal State Fault Code (if applicable) Inverter State Line Voltage and Current Inverter Matrix Temperature Inverter Power PV State PV Voltage and Current PV Power Grid Frequency Peak Power Tracker Enabled Data Logging The inverter stores data values and software metrics for debugging. These values are stored within the CCU2 controller board in non-volatile memory. Data logging requires the use of a PC connection using the Xantrex Solar Graphic User Interface (GUI) software. The Data logging features include: • Operational Values • Internal Metrics • Data Log Acquisition • Graphic Data Analysis • Fault Log Acquisition • Accumulated Values • Configurable Parameters For details on using this feature, consult the GUI Help program. 152607 1–13 Introduction Communication Methods The PV225S communicates system status information to the user using the following methods. • • The Front Panel Control Unit (UFCU) Display PC Connection (Direct or Remote) - Xantrex Solar Graphic User Interface (GUI) Software required. Communication with a PC requires the selection of one of the following options. • Remote Connection -- This method has three options available. One of these options will be field-installed prior to commissioning. • POTS Connection • Wireless Connection • Ethernet LAN Connection • Direct Connection -- This method is most commonly used by field technicians for commissioning and troubleshooting purposes. Important: The customer is responsible for providing the appropriate support service to support a PC connection. (i.e., making arrangements for an analog phone line, data line, wireless service or local area network.) Universal Front Panel Control Unit (UFCU) The UFCU keypad is located on the front of the Main Inverter Enclosure to manipulate and view system operation and status. The keypad is comprised of 20 touch-sensitive keys that provide a means to navigate through the menus and alter user-changeable settings. LCD Display Universal Front Panel Control Unit (UFCU) Figure 1-9 LCD Display and UFCU Location See “UFCU Keypad Operation and LCD Display” on page 2–6 for details. 1–14 152607 Communication Methods PC Connection Methods Personal computers can be used to access the system status and programming features of the PV225S. A computer can be connected either directly or remotely. 1. Remote Connect - uses one of the three kits below. • • • POTS Kit - uses a MultiTech® 56K Modem, RS232/Fiber Optic Converter (configured for ethernet) and SA2 Surge Arrestor. Wireless Kit - uses a GSM Wireless Modem. Ethernet LAN Kit - uses a data communication device to enable the unit to connect to a local area network. 2. Direct Connect - This method is used for troubleshooting. It uses a RS232/Fiber Optic Converter (configured for a PC), a DB25-to-DB25 gender changer, and a DB25-to-DB9 Serial Cable. Software is included to provide a graphic user interface that relates important system information. This software is called Xantrex Solar Graphic Interface (GUI). See “Minimum System Requirements” on page 2–26 for minimum system requirements. Communications Enclosure RS232/FO Converter MultiTech® 56K Modem SA2 Surge Arrestor POTS connection option shown. Figure 1-10 PC Connections in the Communications Enclosure 152607 1–15 Introduction POTS Access Figure 1-11 illustrates the PV225S connected remotely to a personal computer. Figure 1-11 POTS Access Wireless Access Figure 1-12 illustrates the PV225S connected remotely to a personal computer using a wireless network. Figure 1-12 Wireless Access 1–16 152607 Communication Methods Ethernet LAN Access The PV225S can be remotely accessed through a local area network. Figure 1-13 LAN Access Direct Access Figure 1-14 illustrates the PV225S connected directly to a personal computer. Figure 1-14 Direct Access 152607 1–17 Introduction GUI Software Features Read-only Menu Write-Menu The GUI software provides access to the following “Read-only Menu” information. See Table 2-2, “Read Menu Descriptions” on page 2–11 for a specific list of available parameters. • Operational Values • Internal Metrics The GUI software provides control of the following system parameters. These parameters are in the Write Menu. • Data Logging User-Configurable Parameters. See Table 2-5, “Write Menu Parameters” on page 2–16 for a specific list of available parameters. The GUI software provides the following data collection/reports (data logging). These features are not available through the Universal Front Panel Control Unit (UFCU). • • • • • • • Operational Values - The present operational values (such as PV voltage and current, grid network voltage and frequency, or inverter current and power) can be read remotely. Internal Metrics - The inverter also maintains internal software metrics for remote review by Xantrex field service or engineering. Data Log Acquisition - The inverter maintains a data log in non-volatile memory for up to 30 days, after which the oldest data is overwritten. The GUI reads this data and updates a local file that can be imported to a spreadsheet. Graphic Data Analysis - Local data log files generated by the GUI can be imported to a spreadsheet application, thus giving the ability to create a graphical chart for display and analysis. Fault Log Acquisition - The inverter maintains a log of faults (description, time and date). This can be viewed remotely. The fault log is stored in the inverter’s non-volatile memory, and is also read by the GUI and stored at its computer in a text file. Accumulated Values - The inverter tracks power production statistics, such as total energy sold, operating hours, power production hours, peak power and energy, energy by month, and energy by the hour. Accumulated values are stored in the inverter’s non-volatile memory, and are also read by the GUI and stored at its computer in a text file. Configurable Parameters - The configuration parameters controlling the inverter’s operation can be viewed and changed from a remote GUI. See Table 2-3 on page 2–14 for a list of the Data Logging parameters available. 1–18 152607 2 Operation Chapter 2, “Operation” contains information on the basic operation of the PV225S 225 kW Grid-Tied Photovoltaic Inverter. Operation Description of System Operation Overview The PV225S 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 PV225S. 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 PV225S. • • • • • • Stable utility AC voltage and frequency as specified in Table A-3 must be present for all states of operation. PV voltage as specified in Table A-3 must be present. With the exception of the Matrix Test state, the ON/OFF switch, located on the front door of the PV225S 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 PV225S 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 PV225S to restart after a 5 minute delay period. All fault conditions arising from within the PV225S 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, PV225S faults may be cleared from the UFCU keypad or via the remote GUI. See “Clearing Faults Manually” on page 4–3 for instructions on this procedure. 2–2 152607 Description of System Operation POWER UP INITIALIZING PV contactor opened. Inverter matrix off. Grid contactor open. Green LED on. Red off. System State: Key Disable Inverter State: Standby PV State: Sleep KEY DISABLE PV contactor open. Inverter matrix off. Grid contactor open. Enable Key Inverter matrix off. Line contactor open System State: Shutdown Inverter State: Standby PV State: Sleep SLEEP for at least 10 seconds PV Voltage > 300V Close K2 PV Contactor Closed PV Voltage < 50V (300V - 250V margin) PV Contactor Open PV Voltage > 440V (PV V START) WAKE UP for 5.0 min. (PV T START) PV Voltage < 440V (PV V Start) Return State Retrunto to Sleep Sleep State System State: Shutdown Inverter State: Standby PV State: Wake Up Grid Contactor K1 Close System State: Shutdown Inverter State: Main Settling PV State: Wake Up K1 Settle for .5 seconds Inverter Matrix On PV Voltage < 300V (Min. Oper.) PV Voltage < 300V (Min. Oper.) System State: Power Tracking Inverter State: On Line PV State: On Line ON LINE PV Power < 1.0kW (PV P STOP) PV Power > 1.0kW (PV P STOP) TEST for 5.0 min. (PV T STOP) 5 minutes elapsed System State: Power Tracking Inverter State: On Line PV State: Sleep Test Fault from any State FAULT PV contactor opened. Inverter matrix off. Grid contactor open. Red LED on. Green off. Fault Cleared Bold - constant value Italic - User settable. Underline - Default value. Figure 2-1 Operating States Flow Chart 152607 2–3 Operation Operating States A state machine implemented within the CCU2 control software governs the operation of the PV225S with clearly defined transitions between its operating states. There are five steady-state operating states and numerous intermediate transition states. • • • • • • • Power Tracking Transition Shutdown Fault Manual Current Matrix Test Automatic Sleep Test Power Tracking This is the standard operating state of the PV225S. The PV225S maximum power tracker will demand maximum power from the PV array, given sufficient PV irradiance. The user should be aware of the following conditions governing PV225S state transitions: • • • • Qualified utility voltage must be present for all states of operation. Fault states are automatic from any state of operation. A fault will cause the PV225S to immediately stop processing all power. The fault condition will be reported to the operator interface LCD. Most PV225S faults are latching and must be cleared at the operator interface keypad before transitioning to another operating state. The ON/OFF switch, located on the front door of the PV225S, must be in the ON position for all operating states except Matrix Test, in which case it must be in the OFF position. Transition The intermediate transition states provide an orderly progression from one operating state to the next. The user has the ability to manually transition the PV225S between operating states via the operator interface keypad or remotely using the GUI software. Manual transitions are initiated by entering a “Goal State”, where the goal state is the desired operating state. Given all applicable system parameters are within acceptable limits, and the request is valid within the state machine, the PV225S will initiate the proper sequence of operations necessary to progress to the requested goal state. Refer to Figure 2-1 on page 2–3 for an illustration of valid state transitions. 2–4 152607 Operating States Shutdown The line interface controller is idle. The CCU2 monitors the status of the PV array and utility grid, waiting in standby until the PV array is available to produce power to the grid. Fault The PV225S has encountered a fault condition. When this happens, regardless of the PV225S state of operation, the PV225S will stop processing all power and execute an orderly system shutdown. A description of the fault and fault code will appear on the operator interface LCD. The Fault state may be cleared from the keypad once the cause of the fault has been corrected. See Chapter 4, “Troubleshooting” for a complete description of all fault codes. Manual Current This operating state is provided to evaluate the existing PV array V-I characteristics. The PV controller regulates a constant amount of PV current as commanded by the user from the operator interface keypad, up to the PV current limit of the PV225S. If the user commands more PV current than is available, the DC bus voltage will drop below the minimum bus voltage level and the PV225S will enter Shutdown mode. Matrix Test This operating state is provided to verify proper operation of the matrices and their associated control electronics. There is no power transfer between the PV and utility in this mode. The ON/OFF switch must be in the OFF position for the PV225S to enter this state. Automatic Sleep Test Toward the end of every solar day, the PV225S automatically determines when to stop producing power dependent upon the output power of the inverter. As the net output power of the PV225S nears zero, a timer is started to allow the inverter to ride through any brief irradiance reductions. 152607 2–5 Operation Operator Interface The purpose of the operator interface is to provide a means of communicating critical operational information to and from the unit. This communication occurs between the operator and the UFCU Keypad and LCD display or between the operator and a personal computer running the Xantrex Solar GUI software. UFCU Keypad Operation and LCD Display The UFCU keypad is located on the front of the Main Inverter Enclosure to manipulate and view system operation and status. The keypad is comprised of 20 touch-sensitive, peizio electric keys that provide a means to navigate through the menus and alter user-changeable settings. • • • • Four function keys are available. • F1 - While in the READ Menu, this key is used to clear faults. In the WRITE Menu, it jumps to set “Goal:”. • F2 - While in the READ Menu, this key jumps to display “INV A Volts”. While in the WRITE Menu, this key jumps to display “Max AC Volts %”. • F3 - While in the READ Menu, this key jumps to display “PV Volts:”. While in the WRITE Menu, this key jumps to display “Input #0:”. • F4 - While in the WRITE Menu, when commanding a goal state, this function key confirms the change in goal state. Two Navigation keys are available. • \/ or /\ moves forward or backward within the menu structure. Upon reaching the end of the menu, it will roll-over to the beginning of the same menu. Ten numeric keys (0 through 9), two symbol keys (“.” and “-”), and an “ENTER” key are available for entering user-settable parameters. The “MENU” key allows you to enter the password-protected Write parameters. System: PWR Tracking Inv: Online Pv: Online Goal : PWR Tracking LCD Display UFCU Keypad Standard Display Figure 2-2 The Universal Front Panel Control Unit (UFCU) and LCD 2–6 152607 Operator Interface LCD Display - Initialization Screen Any time AC power is applied to the unit, the LCD display will cycle through the following displays while the system initializes. Once it’s done with this process, the standard display will appear. Front Panel Initialization - Screen 1 Initialising... Front Panel Initialization - Screen 2 Front Panel v5.0 SW Build: 012805 Model: PV225S XANTREX TECHNOLOGY www.xantrex.com (800) 670-0707 System Initialization - Screen 3 Standard Display System: Initializing Inv: Shutdown Pv: Shutdown Goal : Shutdown System: PWR Tracking Inv: Online Pv: Online Goal : PWR Tracking Figure 2-3 Initialization Screens Standard Display The Standard Display provides the following information: • • • • 152607 First Line - System Status (ID 1) Second Line - Inverter Status (ID 4) Third Line - PV Status (ID 13) Fourth Line - Goal State (ID 2) 2–7 Operation Menu Structure The operator interface consists of three levels: • • • READ Menu - operation information provided to the user from the PV225S. The READ Menu consists of all operational values, the date and time. These can be viewed any time the PV225S has control power. WRITE Menu - operational parameters provided to the PV225S from the user. The WRITE Menu consists of a goal state sub-menu, and all system configurable parameters. The WRITE Menu is password protected and may only be changed by trained service technicians. In particular are parameters relating to utility protection setpoints. Data Logging - the collection of specific parameters values over a period of time. The data logging feature is only available if using the GUI. However, the user does have the ability to view a snapshot of specific data using the “Read by ID” feature. See Table 2-3 on page 2–14 and Table 2-4 on page 2–14. Information reported back to the user (READ Menu) occurs at the LCD above the Universal Front Panel Control Unit (UFCU) and (if used) at the computer running the GUI monitoring program. Making changes to the parameters within the WRITE Menu is done with the UFCU keypad or the GUI software program and requires a password. Important: Specific grid-interface parameters within the WRITE Menu have been set in the factory to the limits mandated by UL 1741. Any changes to these setpoints should be agreed upon by the local utility and the equipment owner. Upon system power-up, the operator interface LCD will display the system operating state on the first line. The inverter’s state of operation will be reported on the second line. The PV Array’s state of operation will be reported on the third line. The Goal target will be reported on the fourth line. Important: While in the WRITE Menu, the operator interface display will reset itself to the standard display if there is no input for more than 2 minutes. System: PWR Tracking Inverter: Online PV: Online Goal: PWR Tracking READ Menu Standard Display Password Enter Goal State WRITE Menu Set Date/Time Change Parameters Figure 2-4 Operator Interface Menu Diagram 2–8 152607 Operator Interface READ Menu The READ Menu includes the following information: • • • • • • • • • • • Current Operating State or Goal State Fault Code (if applicable) Inverter State Line Voltage and Current Inverter Matrix Temperature Inverter Power PV State PV Voltage and Current PV Power Grid Frequency Peak Power Tracker Enabled Table 2-1 shows how the third and fourth line of the LCD will change as the operator continues scrolling through the Menu. Table 2-2 on page 2–11 provides a detailed description of READ Menu operational values that are displayed on the LCD. To Display Any Operational Value in the READ Menu From the Standard Display, use the /\ or \/ keys on the operator interface keypad to scroll through the READ Menu. The fourth line of the display will change to display the appropriate information. See Table 2-1. • • The \/ key will scroll downward through the menu. The /\ key will scroll upward through the menu. Table 2-1 Scrolling through the Read Menu Parameters Read Menu Value Fourth Line of the LCD Software Version (not shown) CCU Vx.xx FP V.x.x Date/Time (not shown) Feb-14-2005 10:01:55 Read by ID# Value by ID# Inverter A-B Volt INV A Volts: Inverter B-C Volt INV B Volts: Inverter C-A Volt INV C Volts: Inverter A Current INV A Amps: Inverter B Current INV B Amps: Inverter C Current INV C Amps: PV Voltage PV Volts: PV Current PV Amps: PV Power PV kW: Grid Frequency Grid Freq: PV PPT Enable PV PPT: Ground Current Ground I: Accumulated Power KWH: Upon reaching the end of the menu, it will go back to the beginning of the menu. 152607 2–9 Operation Standard Display System: PWR Tracking Inv: Online Pv: Online Goal : PWR Tracking From the Standard Display: 1. Press the \/ button once. System: PWR Tracking Inv: Online Pv: Online CCU Vx.xx FP Vx.x 2. Fourth line displays CCU version and Front Panel version software. System: PWR Tracking Inv: Online Pv: Online Feb-14-2005 10:01:55 3. Press the \/ button again. 4. Text on Fourth line displays the Date and Time. System: PWR Tracking Inv: Online Hit ENTER or "." "-" Value by ID# 5. Press the \/ again. 6. Third and Fourth line displays the “Read by ID” feature. System: PWR Tracking Inv: Online Hit ENTER or "." "-" Value by ID# 7. Either enter a Read parameter ID number to jump to the specified parameter or press the \/ again continue scrolling through the Read Menu. The fourth line will continue to change as described in Table 2-1. System: PWR Tracking Inv: Online PV: Online INV A Volts: 480 Figure 2-5 Scrolling through the READ Menu 2–10 152607 Operator Interface Table 2-2 READ Menu Descriptions Operational Parameter Description ID Units Current Operating State Current system states include the following. 1 N/A 2 N/A Displays as: System: * where * can be any one of the states listed in the description for this parameter. System Goal State Displays as: Goal: * where * can be any one of the states listed in the description for this parameter. Initializing (0) Key-disabled (1) Shutdown (2) Starting (3) PWR Tracking (4) Manual Current (5) Matrix Test (6) Faulted (7) Goal States include the following. Shut Down (0) PWR Tracking (1) Manual Current (2) Matrix Test (3) Fault code See “Fault Code Descriptions” on page 4–4 for a detailed list of Fault Codes. 3 N/A Inverter State Inverter States includes the following. 4 N/A Line to line voltage 5 Vrms Line to line voltage 6 Vrms Line to line voltage 7 Vrms Phase A current 8 Arms Phase B current 9 Arms Displays as: INV: * where * can be any one of the states listed in the description for this parameter. Line A–B voltage Shut Down (0) Stand-by (1) Starting (2) Main-Setting (3) On-Line (4) Displays as: INV A volts: xxx Line B–C voltage Displays as: INV B volts: xxx Line C–A voltage Displays as: INV C volts: xxx Phase A current Displays as: INV A amps: xxx Phase B current Displays as: INV B amps: xxx 152607 2–11 Operation Table 2-2 READ Menu Descriptions Operational Parameter Description ID Units Phase C current Phase C current 10 Arms Inverter Real Power 11 kW Temperature of the Inverter IGBT matrix heatsink 12 °C PV States include the following. 13 N/A PV Voltage 14 Vdc PV Current 15 Adc PV Power 16 kW Grid Frequency 17 Hz Indication as to whether the PPT is enabled or disabled. Off (0) On (1) 18 N/A Ground Current 19 N/A kW Accumulated 20 N/A Displays as: INV C amps: xxx Inverter Real Power Displays as: INV KW: Inverter Matrix Temperature Displays as: INV Temp: PV State Displays as: PV: * where * can be any one of the states listed in the description for this parameter. PV Voltage Shut Down (0) Sleep (1) Wakeup (2) On-line (3) Sleep-test (4) Displays as: PV Volt: xxx PV Current Displays as: PV amps: xxx PV Power Displays as: PV kW: xxx Grid Frequency Displays as: Grid Freq: Peak Power Tracker Enable Displays as: PV PPT: * where * can be any one of the states listed in the description for this parameter. Ground Current Displays as: Ground I: kW Accumulated Displays as: kWH: 2–12 152607 Operator Interface READ-by-ID The Read-by-ID feature supports the ability of the user to view any Read or Write parameter available within the menu structure. It also provides a means to view data logging and accumulated values information. See Table 2-2 for a list of the Read Menu parameters. See Table 2-3 for a list of data logging menu parameters. See Table 2-4 for a list of accumulated values parameters. To use the Read-by-ID Feature: 1. From the Standard Display, press the \/ key three times to scroll downward through the menu to the Read-by-ID Menu item. Stop when the 3rd and 4th line of the display change as shown in Figure 2-6. 2. Pressto enter the Read-by-ID feature. 3. Use the keypad to enter the ID number of the Data Log Configuration or Accumulated Value ID number and press . See Table 2-2 for a list of READ Menu items and their ID numbers. a) Press the “.” button to move upward in the Menu structure. b) Press the “-” to move backward in the menu structure. These keys only function in the Read-by-ID feature. System: Shutdown Inv: Standby Hit ENTER or "." "-" Value by ID# Press when this screen appears to access the Read-by-ID feature. System: Shutdown Inv: Standby Hit ENTER or "." "-" Read ID# xxx: xxx Use the keypad to enter the desired ID number and press . The display will change as shown and will show the requested value. where: xxx = any Menu ID xxx = operational value of Menu ID Use the “.” and “-” buttons to scroll backward and forward within the Read-by-ID menu. Figure 2-6 Read-by-ID Feature 152607 2–13 Operation Table 2-3 provides a list of the Data Logging Menu parameters. Table 2-3 Data Logging Menu ID# Usage 300 Data Log Daily Rate in Minutes 301 ID# of 1st parameter to be logged 302 ID# of 2nd parameter to be logged 303 ID# of 3rd parameter to be logged 304 through 390 ID#s of the 4th through the 90th parameter to be logged. 391 Not available 392 Data Log Nightly Rate in Minutes 393 First Daytime Hour 394 First Night-time Hour 395 Size of Data Log in Words 396 Words per record 397 Count of parameters per record 398 Offset from Data Log or next log record 299 Address of the Data Log Table 2-4 provides a list of the Accumulated Values Menu parameters. Table 2-4 Accumulated Values Menu 2–14 ID# Usage 600 Accumulated Operating Hours on actual day 601 Accumulated Operating Hours in actual week 602 Accumulated Operating Hours in actual month 603 Accumulated Operating Hours in actual year 604 Accumulated Operating Hours since Commissioning 605 Accumulated Sell Mode Hours on Actual Day 606 Accumulated Sell Mode Hours in actual week 607 Accumulated Sell Mode Hours in actual month 608 Accumulated Sell Mode Hours in actual year 609 Accumulated Sell Mode Hours since Commissioning 610-619 Not available 620 Accumulated Power Sold Hours on actual day 621 Accumulated Power Sold Hours in actual week 622 Accumulated Power Sold Hours in actual month 623 Accumulated Power Sold Hours in actual year 624 Accumulated Power Sold Hours since Commissioning 625 Accumulated Power Sold Hours since last reset 626-629 Not available 630 Peak Power monitored today 152607 Operator Interface Table 2-4 Accumulated Values Menu ID# Usage 631 Peak Power monitored this week 632 Peak Power monitored this month 633 Peak Power monitored this year 634 Peak Power monitored since Commissioning 635-639 Not available 640 Peak Power Sold for a day 641 Peak Power Sold for a week 642 Peak Power Sold for a month 643 Peak Power Sold for a year WRITE Menu Important: Specific grid-interface parameters within the WRITE Menu have been set in the factory to the limits mandated by UL 1741. Any changes to these setpoints should be agreed upon by the local utility and the equipment owner. The WRITE Menu includes the following parameters: • • • • • • • • • Ground Current Max PPT Voltage Reference PV Voltage Start PV Time (Start and Stop) PV Power Stop PPT Current Max % Manual Current % PPT Enable PPT Update Rate and Voltage Step Important: Write parameters require a password to access and should only be changed by authorized personnel. Table 2-5 provides a detailed description of WRITE parameters that are displayed on the LCD. 152607 2–15 Operation Changing and Displaying WRITE Menu Parameter Values Follow the procedure below to change WRITE Menu parameters. To change WRITE Menu parameters: 1. From the standard display or anywhere in the READ Menu, you may access the WRITE menu parameters by pressing the
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