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Xantrex GT5.0-NA User's Manual

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1. 4 3 Disconnect Test 4 5 Locating the Firmware Version Number 4 5 Monitoring the Inverter Monitoring the Front Panel Display 5 1 Front Panel Display Screens and What They Mean 52 Startup Mode 5 2 Normal Operation Mode 5 4 Offline Mode 5 6 Fault Mode 5 8 Special Screens 5 10 Custom Screens 5 10 Status Indicator Lights 5 11 Maintenance and Troubleshooting Factors Affecting GT Inverter Performance 6 1 PV Array Factors 6 1 Other Factors 6 2 Performing General Maintenance 6 3 Replacing Parts 6 3 Replacing the Ground Fault Protection Fuse 6 4 Replacin
2. 3 4 DC AC Disconnect Switch 3 4 Accessing the Wiring Terminals 3 5 Connecting the DC Wiring 3 7 DC Wiring for Multiple Inverters 3 9 Connecting the AC Wiring 3 10 DC and AC Wiring for Multiple Inverters 3 11 Communications Wiring for Multiple Inverters 3 12 Xanbus Network Technology 3 12 Guidelines for Routing the Network Cables 3 15 Connecting Network Cable Between Multiple Inverters 3 15 Communications Wiring for Monitoring a Single Inverter 3 15 975 0320 01 01 ix Contents 4 Starting the Inverter Startup Procedure 4 1 Checking the PV Array DC Voltage 4 2 Checking the AC Utility Voltage 4 2 Replacing the Wiring Disconnect Box Cover 4 2 Starting up the GT Inverter 4 3 Commissioning Multiple Inverters
3. 14 to 6 AWG Disconnect switch Regulatory Approvals The GT Inverter has complete on board over current over temperature and anti islanding protection and meets U S Canadian and international safety operating standards and code requirements UL 1741 Ist Edition 2005 Revision Standard for Inverters Converters Controllers and Interconnection System Equipment for Use with Distributed 975 0320 01 01 Integrated switch disconnects both AC and DC meets NEC article 690 rated E 600 Vdc Energy Resources Includes IEEE 1547 and 1547 1 e CSA C222 No 107 1 01 General Use Power Supplies IEEE C62 41 2 IEEE Recommended Practice on the Characterization of surges in Low Voltage AC Power Circuits Location Category B Part of UL 1741 2005 Refer to approval certificate for details Note This inverter is compliant with IEEE 1547 for those requirements referenced in UL1741 2005 section 46 1 1 A utility interactive inverter and interconnection system equipment ISE shall comply with the Standard for Interconnecting Distributed Resources With Electric Power Systems IEEE 1547 and the Standard for Cofnformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems IEEE 1547 1 excluding the requirements for Interconnection Installation Evaluation Commissioning Tests and Periodic Interconnection Tests A 6 Warranty and Return Information Warranty What does
4. Grid Readings in Table 5 3 above is displayed 2 Tap again Normal operation screens shown in Table 5 4 are displayed in the order given as you tap successively on the unit If you continue to tap the unit then the LCD will cycle through all of the available normal operation screens Each message is displayed for up to 30 seconds If you do not tap again within that time period then the LCD backlight turns off and the display reverts to the default normal operation screen Table 5 2 Table 5 4 Additional Normal Operation Screens for Each GT Inverter Unit in a Multiple Unit System Tap Display Description 6th time Unit 15004 Power being produced by this unit now Today 1 250kUh Cumulative energy produced by this unit today 7th time 975 0320 01 01 Unit Lifetime 150kU h Lifetime energy produced by this GT Inverter unit 5 5 Monitoring the Inverter Offline Mode Offline default display Offline messages for all systems Additional Offline messages for multiple unit systems 5 6 At night and when no power is being produced by the PV array offline mode the GT Inverter displays the screen shown in Table 5 5 Table 5 5 Offline Mode Default Display Display Description Inverter Displayed at all times while the system is offline offline Additional message screens can be viewed when the system is offline by tapping the Xantrex logo near the LCD Each additional tap displays
5. Refer to the operating instructions You can find more information about Xantrex Technology Inc as well as its products and services at www xantrex com 975 0320 01 01 vi Important Safety Instructions SAVE THESE INSTRUCTIONS This manual contains important instructions that shall be followed during the installation and maintenance of the Xantrex Grid Tie Solar Inverter WARNING The following warnings identify conditions or practices that could result in personal injury or loss of life 1 Before installing and using the GT Inverter read all instructions and cautionary markings on the inverter wiring box and all appropriate sections of this guide To reduce risk of fire hazard do not cover or obstruct the heat sink Under some conditions the GT Inverter heat sink can reach temperatures hot enough to cause skin burns if accidentally touched Ensure that the GT Inverter is located away from normal traffic areas 4 Useonly accessories recommended or sold by the manufacturer Doing otherwise may result in a risk of fire electric shock or injury to persons 5 To avoid a risk of fire and electric shock make sure that existing wiring is in good condition and that wire is not undersized Do not operate the GT Inverter with damaged or substandard wiring 6 Do not operate the GT Inverter if it has received a sharp blow been dropped or otherwise damaged in any way If the GT Inverter is damaged see the Warranty sect
6. on page A 2 This is a utility fault it will clear itself when the frequency comes within the specified range Over Temp Fault 81 4C 178 5F The unit s internal temperature is greater than 80 C 176 F the unit will shut down automatically and only restart when the temperature has dropped to less than 70 C 158 E Neutral Loss Detected The GT Inverter is configured for North America and the phase to neutral voltage is outside the allowable range Either this is a utility fault or a phase to neutral line is not connected properly Ground Fault Reset System A grounding fault is detected The ground fault fuse will be blown The system must be shut down completely the fault corrected the fuse replaced see Replacing the Ground Fault Protection Fuse on page 6 4 and then the system restarted Troubleshooting a grounding fault should be performed by qualified personnel such as a certified electrician or technician Unit Shutdoun via Remote The GT Inverter unit has been shut down via a computer connected to the RS 232 port Protection uP Not Responding 5 8 The protection microprocessor is not responding 975 0320 01 01 Front Panel Display Screens and What They M ean tis normal to receive this fault during low light conditions at dawn or dusk At such times the array does not have sufficient energy to power the inverter so the PV voltage drops below 240 volts occasionally T
7. About This M anual Conventions Used The following conventions are used in this guide WARNING Warnings identify conditions 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 Abbreviations and Acronyms CEC California Energy Commission CSA Canadian Standards Association GT Grid Tie LCD Liquid Crystal Display LED Light Emitting Diode MPPT Maximum Power Point Tracking NEC US National Electrical Code NFPA 70 PV Photovoltaic PVGFP PV Ground Fault Protection STC Standard Test Condition UL Underwriters Laboratories Vac Volts AC Vdc Volts DC VMPP Voltage at Maximum Power Voc Open Circuit Voltage 975 0320 01 01 Symbols Used About This M anual Ground In this guide Important information warnings or cautions On the product Important information warnings or cautions with further explanation in the product guide Caution risk of electric shock Hot surface risk of burns FOR AUTHORIZED SERVICE PERSONNEL Before opening cover disconnect DC and AC power and wait 5 minutes to allow internal voltages to reach safe levels NOTE there are no user serviceable parts inside Related Information
8. parallel configuration communication between inverters 3 12 communications wiring 3 15 power derating A 4 proof of purchase WA 4 purchase date WA 4 PV arrays angle of the sun 6 2 checking DC voltage 4 2 effect of shade on performance 6 2 factory ratings 6 1 temperature affecting performance 6 1 types of modules 2 3 voltage requirements 2 3 R RJ45 ports communication between inverters 3 13 location in wiring box 3 6 RS 232 port 3 13 3 15 5 8 S safety instructions vii serial number WA 4 specifications electrical A 2 mechanical A 5 standard features and options 1 2 standard test condition 6 1 startup procedure check PV array DC voltage 4 2 check utility AC voltage 4 2 monitor front panel display 5 1 overview 4 1 replace wiring box cover 4 2 IX 2 start the inverter 4 3 status LEDs description 5 11 do not illuminate 6 9 red LED is on 6 9 T temperature affecting PV array performance 6 1 range for locating inverter 2 2 terminal blocks in wiring box 3 6 terminators male network 3 13 thermal derating chart A 3 torque values for wires 3 7 troubleshooting the inverter 6 9 U utility disconnect settings 5 3 A 3 Ww warranty out of warranty service WA 3 terms and conditions WA 1 weight A 5 wiring acceptable wire sizes A 5 PV array to Xantrex GT Inverter 3 7 torquing 3 7 wire sizes 3 4 wiring box description 1 3 removing the cover 3 5 removing the inverte
9. Description lst time System 20004 Today 2 500kWh LCD backlight turns on for better readability and default Normal Operation screen is displayed 2nd time System Lifetime 305kUh Lifetime energy produced by the GT Inverter system 3rd time Time Online Today hh mm ss Length of time inverter has been online today in hours hh minutes mm and seconds ss 4th time Array Readings 350 5V 8 4A Immediate DC voltage and current readings from the PV array 5th time Grid Readings 242 bV 6b0 0Hz Immediate AC voltage and frequency readings from the Grid In a multiple unit system with network cables properly installed the system values displayed are for the entire system For example in a two inverter system if inverter 1 is producing 1500 W and inverter 2 is producing 2000 W both inverters display a total system power of 3500 W Time online and array readings are for the local inverter and PV array associated with that inverter Additional screens In addition to the normal system message screens additional screens specific to for multiple units each GT Inverter unit can be displayed when the unit is networked to other GT Inverters These screens are only available on multiple unit systems To view unit specific screens in a multiple unit system 1 Tap the Xantrex logo near the LCD to advance the display to the next screen Continue tapping until the final system message screen
10. Grid fault When this fault is cleared the protection timer will begin its countdown and you will see the Reconnecting in sss seconds and Inverter Offline special screens see Table 5 10 flashing alternately until the countdown is complete Additional Fault messages for all systems Additional message screens can be viewed in fault mode by tapping the Xantrex logo near the LCD Each additional tap displays the next screen in the order shown in Table 5 9 Table 5 9 Additional Fault M ode Screens Tap Display Description 1st time Current fault message screen see Table 5 8 LCD backlight turns on for better readability 2nd time System DU Today 2 500kWh Energy being produced by the system now Cumulative energy produced by the system today 3rd time System Lifetime 305kUh Lifetime energy produced by the GT Inverter system 4th time Time Online Today hh mm ss Length of time inverter was online today in hours hh minutes mm and seconds ss 5th time Array Readings 350 5V 8 4A Immediate DC voltage and current readings of power from the PV array 6th time Grid Readings 242 bV bO0 D0Hz Immediate AC voltage and frequency readings of power from the grid In a multiple unit system with network cables installed the system values displayed are for the entire system Time online and array readings are for the local inverter and PV array associated with
11. 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 LOSSES DAMAGES COSTS OR EXPENSES WHETHER SPECIAL 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 AND C REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE TRANSLATION THE ACCURACY CANNOT BE GUARANTEED APPROVED XANTREX CONTENT IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION WHICH IS POSTED AT WWW XANTREX COM Date and Revision November 2006 Revision A Manual Part Number 975 0320 01 01 Product Part Number 864 0118 Contact Information Telephone 1 800 670 0707 toll free North America 1 360 925 5097 direct Fax 1 360 925 5143 direct Email customerservice xantrex com Web WWW Xantrex com About This Manual Scope Audience Organization 975 0320 01 01 The purpose of this Owner s Manual is to provide explanations and procedures for installing operating maintaining and troubleshooting the Xantrex Grid Tie Solar Inverter The manual provides safety guidelines detailed planning and setup information It provides procedures for installing the inverter and information about operating and troubles
12. exclusions on implied warranties or on the duration of an implied warranty or on the limitation or exclusion of incidental or consequential damages so the above limitation s or exclusion s may not apply to you This Limited Warranty gives you specific legal rights You may have other rights which may vary from state to state or province to province Warning Limitations On Use Please refer to your product manual for limitations on uses of the product SPECIFICALLY PLEASE NOTE THAT THE XANTREX GRID TIE SOLAR INVERTER SHOULD NOT BE USED IN CONNECTION WITH LIFE SUPPORT SYSTEMS OR OTHER MEDICAL EQUIPMENT OR DEVICES WITHOUT LIMITING THE GENERALITY OF THE FOREGOING XANTREX MAKES NO REPRESENTATIONS OR WARRANTIES REGARDING THE USE OF THE XANTREX XANTREX GRID TIE SOLAR INVERTER IN CONNECTION WITH LIFE SUPPORT SYSTEMS OR OTHER MEDICAL EQUIPMENT OR DEVICES WA 2 975 0320 01 01 Warranty and Return Return Material Authorization Policy Before returning a product directly to Xantrex you must obtain a Return Material Authorization RMA number and the correct factory Ship To address Products must also be shipped prepaid Product shipments will be refused and returned at your expense if they are unauthorized returned without an RMA number clearly marked on the outside of the shipping box if they are shipped collect or if they are shipped to the wrong location When you contact Xantrex to obtain service please have your instruction manual ready fo
13. fuse puller The ground fault protection fuse will blow when severe leakage occurs between the PV array and earth ground or when the system has been installed with faulty wiring Before replacing the fuse it is important to have qualified service personnel such as a certified electrician or technician determine the cause of the ground fault To replace a ground fault protection fuse 1 Remove the wiring disconnect box cover as described on page 3 5 2 Remove the display front panel cover see Figure 6 2 located below the heat sink Use a Phillips screwdriver to remove the two external panhead screws and washers and the two screws along the bottom edge of the cover The ground fault protection fuse is located to the left side of the LCD panel see Figure 6 1 and to the left of the DC interconnect board for positive grounded units marked with the POS suffix 3 Using an insulated fuse puller remove the blown fuse and replace it with a new AC DC midget cartridge rated 600 Vdc 1A Littelfuse KLKD 1 or equivalent 4 Replace the display front panel cover and tighten all four screws securely Replace the wiring disconnect box cover 975 0320 01 01 975 0320 01 01 Replacing Parts Ground Fault Protection Ground Fault Fuse POS models Protection Fuse LCD js Figure 6 1 Location of Fuse Front Panel Cover Removed Figure 6 2 Display Front Panel Assembly 6 5 Mainte
14. inverter displays Reconnecting in sss seconds see Table 5 10 Special Message Screens on page 5 10 When the protection timer stops the GT Inverter begins delivering power indicated by the power output reading in the display see Table 5 2 Normal Operation Default Screen on page 5 4 When the GT Inverter is offline at night for example or a fault condition has been detected the LCD shows a message screen to indicate that the inverter is offline and to identify the specific fault condition See Table 5 5 Offline Mode Default Display on page 5 6 and Table 5 8 Fault Message Screens on page 5 8 LLL xantrex Grid Tie Solar Inverter San rota Mo Tap Xantrex logo for backlight and status screens T ER UE Figure 5 1 Front Panel LCD Monitoring the Inverter Viewing more information Additional screens of information about the performance of the GT Inverter can be displayed by tapping the Xantrex logo on the inverter front panel This causes the LCD to cycle through a series of information screens in Normal Operation Offline or Fault modes These are described in detail in the following section Front Panel Display Screens and What They Mean Front Panel Display Screens and What They Mean Startup Mode 5 2 The front panel display shows different message screens during different modes of operation Startup Normal Off
15. means of disconnect In jurisdictions where the local utility requires that the AC disconnect be capable of being locked in the open position by its service personnel this disconnect switch can also serve as a lockable isolating device Important In North America and other locations the wiring disconnect box is an electrical code requirement Regulatory approval is based on the wiring disconnect box always being attached to the inverter during operation Any attempt to remove this box will invalidate the approvals and create an electrical hazard 1 3 1 4 Installation Chapter 2 provides information about installing the GT Inverter It contains information on determining a suitable location for installation PV array requirements and procedures for mounting the unit Installation Options The GT Inverter may be installed as a single inverter for a single PV array of one to three PV strings an external fuse box is required when three PV strings are connected or in a multiple inverter configuration for multiple PV arrays If multiple inverters are used each inverter must be wired to an independent PV array Communications between inverters can be enabled by installing network cabling to the inverter RJ45 ports See Connecting Network Cable Between Multiple Inverters on page 3 15 Planning the Installation Ensure that you have obtained all permits required by local authorities or utilities before beginning install
16. meter or to dual meters where one meter indicates power used and the second meter indicates power sold power supplied back to the utility Consult the local utility to determine the proper components to install and obtain any permits required prior to installation Ensure all connections are correctly wired and properly torqued to a maximum 16 in Ib 1 8 Nm The AC wiring procedure is illustrated in Figure 3 9 Important The neutral conductor must be attached to the inverter in all cases The neutral conductor is used for phase to neutral voltage sensing only and is not a current carrying conductor This conductor is not bonded to ground in the inverter oo o 9 9 6 L1l2N G olelala nene e e 0000900009000 Grounding not shown Main Service Utility Panel Figure 3 9 AC Connections from GT Inverter to Utility Service Panel 975 0320 01 01 DC and AC Wiring for Multiple Inverters DC and AC Wiring for Multiple Inverters DC and AC wiring for multiple inverters is illustrated in Figure 3 10 If there will be more than one PV array label the positive and negative wire pairs appropriately for example PV1 POS PV1 NEG PV1 GND PV2 POS etc If required by the AHJ a DC grounding conductor may be connected to each inverter s ground bar One inverter will connect to a common groundi
17. not provide sufficient information for anyone but a qualified installer to install this product Installers should be electricians or technicians fully educated on the hazards of installing electrical equipment Grounding Requirements AC Grounding PV Grounding The GT Inverter must be connected to the AC ground from the utility via the GT Inverter ground bar The PV array frame ground should be connected to the GT Inverter ground bar The size for the conductor is usually based on the size of the largest conductor in the DC system A DC grounding electrode conductor may be required by the Authority Having Jurisdiction AHJ Use the GT Inverter ground bar for this connection see Figure 3 2 on page 3 3 CAUTION Equipment damage Provide adequate clearance for grounding wires inside the GT Inverter wiring box Ensure that the bare copper grounding wire is more than Y inch clear of the DC AC interconnect circuit board Two 4 inch 7 mm knockouts in the bottom of the wiring box are intended for routing the ground conductors to the ground bar See Figure 3 1 Wiring the Inverter 3 2 Ground bar Knockouts for ground conductors Dx D Figure 3 1 Ground Conductor Knockouts The ground bar accepts wires up to 4 AWG Torque ground wires as specified in Table 3 1 Table 3 1 Torque Values for Ground Wiring Wire Size Torque Value AWG mm in I
18. performance becomes inconsistent Replacing Parts 975 0320 01 01 WARNING Shock hazard There are no user replaceable parts on the GT Inverter Do not attempt to service the unit yourself See the Warranty and Return Information on page WA 1 for information on how to get service for your GT Inverter 6 3 Maintenance and Troubleshooting Replacing the Ground Fault Protection Fuse 6 4 WARNING Shock and fire hazard Fuses should only be replaced by qualified service personnel such as a certified electrician or technician For continued protection against risk of fire replace only with same type and ratings of fuse WARNING Shock hazard After disconnecting both AC and DC power from the GT Inverter wait five minutes before attempting any maintenance or cleaning or working on any circuits connected to the inverter Internal capacitors remain charged for five minutes after disconnecting all sources of power aida Shock hazard Dangerous voltages can exist inside the inverter If there is leakage current from the ungrounded conductor to ground at the array touching the grounded lead could cause a life threatening shock even with the disconnect switch turned off Ungrounded DC current within the inverter presents an extreme shock hazard Cover PV arrays with an opaque material during this procedure e When the fuse has blown due to a fault incorrect handling can be life threatening Use an insulated
19. protect the inverter from dust debris and birds The sun shade should be made from an opaque material that provides shade for the heat sink It should be large enough and positioned so that it shades the heat sink for all sun angles Ensure that the shade is installed according to the minimum clearances specified on page 2 7 The GT Inverter must be mounted vertically on a wall or pole Do not mount the GT Inverter horizontally If mounting the inverter indoors on a south facing wall ensure the wall is insulated to reduce the amount of heat absorbed by the inverter Unless walls are properly insulated avoid mounting the inverter indoors on any wall that is directly exposed to the sun Ensure that the GT Inverter is mounted in a location where the ambient temperature range is 25 to 65 C 13 to 149 F Above 40 C 104 F the GT Inverter may derate power output See Output Power vs Ambient Temperature on page A 3 and Environmental Specifications on page A 4 At extreme hot or cold temperatures the front panel LCD may not function normally Outdoors the GT Inverter requires at least 100 cm 39 inches of clearance between the bottom of the unit and the ground To minimize resistance and resulting power loss ensure that wire lengths between the PV array and the GT Inverter and between the inverter and the Main Utility Service Panel are kept to a minimum Maximum distances will depend on wire gauges used and PV array outpu
20. system growth The GT Inverter GT5 0 has adjustable voltage and frequency disconnect settings and can be aggregated above 30 kW on a single point of common coupling PCC See Adjustable Voltage Frequency and Reconnection Settings on page A 3 The GT Inverter uses the Xanbus communications protocol enabling it to communicate with multiple units connected within the system For more information see Xanbus Network Technology on page 3 12 Standard Features The GT Inverter has the following standard features e Sealed inverter section protecting power electronic components e Liquid Crystal Display LCD providing easy to read system status and daily cumulative energy production information Two LED indicator lights providing status and ground fault indication e Wiring disconnect box providing protection for all AC and DC connections and eliminating exposed live wiring if the inverter is removed The wiring disconnect box has been designed to be physically mated to the electronics section of the GT Inverter at the factory but remains in place as a non serviceable item in the event that the inverter electronics section is ever required to be removed The inverter and wiring disconnect box together form an NEMA 3R enclosure to allow outdoor installation WARNING Shock hazard The 600 volt DC AC disconnect in the wiring disconnect box meets NEC Article 690 It is a non serviceable component and shall remain in place Se
21. that inverter 975 0320 01 01 5 9 Monitoring the Inverter Special Screens Special message screens are displayed in specific situations that are not considered fault situations They can appear in any mode of operation These screens are described in Table 5 10 Table 5 10 Special Message Screens Display Description Reconnecting in sss seconds Time remaining in seconds sss before the GT Inverter reconnects to the grid This is a protection timer it runs for approximately five minutes at startup and after any grid fault Inverter offline GT Inverter switching or has switched from Normal Operation to Offline mode This screen may flash alternately with a Fault message screen System x 3500U Today 15 5bkWh Unit 1800U Today B2kUh The x in these two screens see Table 5 2 and Table 5 4 indicates that the unit is derating its output power because the inverter heat sink temperature is above 75 C 167 F The asterisk only appears when the power is actually being limited by the inverter Insufficient Solar Energy Custom Screens Indicates the GT Inverter is not producing power due to insufficient solar energy during low light conditions in early morning or late afternoon or when the PV array is in shade This screen flashes alternately with the Normal Operation default screen Two custom screens are available The inverter does not display them unless they are configured u
22. this warranty cover This Limited Warranty is provided by Xantrex Technology Inc Xantrex and covers defects in workmanship and materials in your Xantrex Grid Tie Solar Inverter This warranty period lasts for five years from the date of purchase at the point of sale to you the original end user customer You require proof of purchase to make warranty claims This Limited Warranty is transferable to subsequent owners but only for the unexpired portion of the Warranty Period Subsequent owners also require proof of purchase What will Xantrex do Xantrex will at its option repair or replace the defective product free of charge provided that you notify Xantrex of the product defect within the Warranty Period and provided that Xantrex through inspection establishes the existence of such a defect and that it is covered by this Limited Warranty Xantrex will at its option use new and or reconditioned parts in performing warranty repair and building replacement products Xantrex reserves the right to use parts or products of original or improved design in the repair or replacement If Xantrex repairs or replaces a product its warranty continues for the remaining portion of the original Warranty Period or 90 days from the date of the return shipment to the customer whichever is greater All replaced products and all parts removed from repaired products become the property of Xantrex Xantrex covers both parts and labor necessary to repair the produ
23. with plastic plugs which can be removed to insert conduit nipples as required for multiple inverter installations One or two of these side conduit holes may be used to accommodate Xanbus network cables connected between multiple inverters ry 4 55 21 5 8 69 9 27 1 2 72 6 28 9 16 i E Y 6 52 Y l Eu 2 9 16 PEN 40 3 15 7 8 al 6 15 2 7n6 Dual 3 5 cm or 2 7 cm 1 3 8 or 1 knockouts Dual 3 5 cm or 2 7 cm r 1 3 8 or 1 knockouts All measurements in cm inches Figure 2 1 Dimensions of GT Inverter and Knockout Locations 975 0320 01 01 2 5 Installation Installing the Mounting Bracket The mounting bracket is designed to be affixed to the vertical structure or surface to which the GT Inverter will be mounted The GT Inverter mounting hooks attach to the flanges on the mounting bracket If mounting more than one inverter install each mounting bracket at least 15 cm 6 inches apart to provide enough space for the inverters to hang side by side Mounting bracket Back side of the inverter 253 10 Rectangular slots x 25 0 8 x 3 5 16 x 1 3 1
24. 00 Vdc Inverter stops delivering power and shuts down Inverter Off line shutdown or Voc gt 600 Vdc may be damaged Voltage The maximum power point voltage of a string connected to the GT Inverter should requirements preferably be above 240 Vdc If it is less than 240 Vdc the inverter continues to operate but it regulates the PV voltage to 240 V Because the array is not operating at its maximum power point this may result in lower than expected energy harvest If V c is below 240 Vdc the inverter remains off line and does not deliver power CAUTION Equipment damage To prevent damage to the inverter the array voltage must never exceed 600 V open circuit voltage under any condition 975 0320 01 01 The open circuit voltage of the array under normal conditions should be above 240 Vdc The short circuit current I rating of the array at any temperature must not exceed the I rating of the inverter For maximum solar energy harvest it is recommended that the effective power output of the array be matched with the input power capacity of the inverter 2 3 Installation Guidelines for Matching PV Array Size to Xantrex Grid Tie Solar Inverter Input 2 4 Consider the expected Vc of the string under all possible conditions The panel manufacturer provides a V rating per panel but it is usually rated at 25 C 77 F Ensure that the V rating at the coldest ambient temperature does not exceed 600 Vdc Panel volt
25. 5 error messages and solutions 6 9 F fault conditions and solutions 6 9 FCC information to the user viii features and options 1 2 front panel display 1 2 5 1 fault messages 5 8 normal operation messages 3 4 offline mode messages 5 6 reading messages 5 2 special messages 5 10 startup messages 5 2 975 0320 01 01 fuse location of ground fault protection 6 5 G general maintenance 6 3 ground clearance required for installation 2 2 2 7 ground fault protection fuse 3 3 replacing 6 4 grounding requirements 3 1 GT View 3 15 5 10 H humidity limits A 4 information about your system form WA 4 installation ground clearance 2 2 2 7 grounding requirements 3 1 location concerns 2 2 mounting 2 7 options 2 1 PV array requirements 2 3 inverter features and options 1 2 removing from wiring box 6 6 serial number WA 4 L LEDs See status LEDs M maintenance general 6 3 maximum power point tracking See MPPT mechanical specifications A 5 messages See front panel display model number WA 4 MPPT operational window 2 3 technology 1 2 multiple inverters AC and DC wiring 3 11 communication between 3 12 communications wiring 3 15 IX 1 Index configuration 2 1 messages in normal operation 5 5 messages in offline mode 5 6 O operation factors affecting performance 6 1 inverter startup 4 3 messages at startup 5 2 reassembling the unit 4 2 startup procedure 4 1 P
26. 6 hs E cc En En c F AS Mounting flanges P RE a 1 Mounting hooks 5 All measurements c3 in cm inches B Q 3 8 1 1 2 fron SS bottom of bracket xS 1 3 1 2 from side of bracket to knockout center Mounting slots for to knockout center f securing the inverter Figure 2 2 Mounting Bracket and GT Inverter 2 6 975 0320 01 01 Mounting the Inverter Clearance Requirements For optimal and safe operation ensure there is adequate clearance around the inverter If the minimum clearances in Table 2 2 are are not met rated power may not be achieved Table 2 2 Inverter Clearance Requirements Location Minimum Clearance Above 30 cm 12 inches Below Outdoors The inverter extends e Inverter e 100 cm 39 inches below the bracket by e Bracket 110 cm 43 inches approximately 10 cm For indoor installations there is no clearance 4 inches requirement between the bottom of the inverter and the ground In front 30 cm 12 inches minimum 91 cm 36 inches are recommended for easy access for reading the display avoiding accidental contact with hot surface and servicing the inverter On sides Units can be mounted side by side with no clearance between them but 15 cm 6 inches of clearance around the outside edges of the outermost two units is recommended In hot climates some clearance between units may be needed to prevent thermal derating Surfaces for Mounting The GT Inv
27. HERE PERMITTED BY LAW IN LIEU OF ALL OTHER WARRANTIES CONDITIONS GUARANTEES REPRESENTATIONS OBLIGATIONS AND LIABILITIES EXPRESS OR IMPLIED STATUTORY OR OTHERWISE IN CONNECTION WITH THE PRODUCT HOWEVER ARISING WHETHER BY CONTRACT TORT NEGLIGENCE PRINCIPLES OF MANUFACTURER S LIABILITY OPERATION OF LAW CONDUCT STATEMENT OR OTHERWISE INCLUDING WITHOUT RESTRICTION ANY IMPLIED WARRANTY OR CONDITION OF QUALITY MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TO THE EXTENT REQUIRED UNDER APPLICABLE LAW TO APPLY TO THE PRODUCT SHALL BE LIMITED IN DURATION TO THE PERIOD STIPULATED UNDER THIS LIMITED WARRANTY IN NO EVENT WILL XANTREX BE LIABLE FOR ANY SPECIAL DIRECT INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES LOSSES COSTS OR EXPENSES HOWEVER ARISING WHETHER IN CONTRACT OR TORT INCLUDING WITHOUT RESTRICTION ANY ECONOMIC LOSSES OF ANY KIND ANY LOSS OR DAMAGE TO PROPERTY ANY PERSONAL INJURY ANY DAMAGE OR INJURY ARISING FROM OR AS A RESULT OF MISUSE OR ABUSE OR THE INCORRECT INSTALLATION INTEGRATION OR OPERATION OF THE PRODUCT Exclusions If this product is a consumer product federal law does not allow an exclusion of implied warranties To the extent you are entitled to implied warranties under federal law to the extent permitted by applicable law they are limited to the duration of this Limited Warranty Some states and provinces do not allow limitations or
28. M status or e The dated invoice or purchase receipt showing the product exchanged under warranty 975 0320 01 01 WA 1 Warranty and Return What does this warranty not cover This Limited Warranty does not cover normal wear and tear of the product or costs related to the removal installation or troubleshooting of the customer s electrical systems This warranty does not apply to and Xantrex will not be responsible for any defect in or damage to a the product if it has been misused neglected improperly installed physically damaged or altered either inter nally or externally or damaged from improper use or use in an unsuitable environment b the product if it has been subjected to fire water generalized corrosion biological infestations or input voltage that creates operating conditions beyond the maximum or minimum limits listed in the Xantrex product specifi cations including high input voltage from generators and lightning strikes c the product if repairs have been done to it other than by Xantrex or its authorized service centers hereafter ASCs y d the product if it is used as a component part of a product expressly warranted by another manufacturer e the product if its original identification trade mark serial number markings have been defaced altered or removed Disclaimer Product THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY PROVIDED BY XANTREX IN CONNECTION WITH YOUR XANTREX PRODUCT AND IS W
29. ON When power is restored to the GT Inverter you can run GI View on your computer to monitor the inverter s operation Note In multiple installations GT View monitors only the inverter to which the computer is connected However if the inverters are connected with a Xanbus network cable GT View will display total system wattage and the accumulated daily energy produced by all inverters To monitor multiple inverters you require multiple DB9 cable connections one per inverter to your computer For more information about GI View see the G7 View User Manual included with the GI View software 975 0320 01 01 Starting the Inverter Chapter 4 contains information on starting up the Xantrex Grid Tie Solar Inverter and performing a functional test The topics in this chapter are organized as follows Startup Procedure on page 4 1 Commissioning Multiple Inverters on page 4 3 Disconnect Test on page 4 5 Startup Procedure Starting up the GT Inverter requires several steps You will need to 1 2 3 4 Ensure the DC AC Disconnect switch is in the OFF position see Figure 4 1 Check the PV array DC voltage see procedure below Check the AC utility voltage see procedure below Replace the cover on the wiring box see Replacing the Wiring Disconnect Box Cover on page 4 2 Start up the GT Inverter by switching the DC AC Disconnect switch ON WARNING Shock hazard Hazardous v
30. Safety and Data Labels viii FCC Information to the User viii 1 Introduction About the Xantrex Grid Tie Solar Inverter 1 1 Standard Features 1 2 Front Panel Features 1 3 Wiring Disconnect Box 1 3 2 Installation Installation Options 2 1 Planning the Installation 2 1 Inverter Location 2 1 PV Array Voltage and MPPT Requirements 2 3 Mounting the Inverter 2 5 Dimensions and Knockout Locations 2 5 Installing the Mounting Bracket 2 6 Mounting the Inverter on the Bracket 2 8 3 Wiring the Inverter Grounding Requirements 3 1 Ground Fault Fuse 3 3 Wiring Requirements 3 4 AC Circuit Breaker Requirements
31. Smart choice for power Xantrex Grid Tie Solar Inverter xantrex GT5 0 NA Owner s Manual Smart choice for power Xa ntrex Xantrex Grid Tie Solar Inverter Owner s 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 Xantrex Grid Tie Solar Inverter is a trademark of Xantrex International Xantrex and Xanbus are registered trademarks 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 Xantrex Grid Tie Solar Inverter Owner s Manual O November 2006 Xantrex International All rights reserved Exclusion for Documentation UNLESS SPECIFICALLY AGREED TO IN WRITING XANTREX TECHNOLOGY INC
32. a label with model serial and part number information Safety Label Data Label FCC Information to the User This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and the receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help viii 975 0320 01 01 Contents Important Safety Instructions vii Location of
33. age increases in cold temperatures the panel manufacturer should be able to provide a coefficient of voltage increase per degree The NEC also has required temperature voltage deratings that must be used these can be found in article 690 of the NEC You need to determine the coldest temperatures expected on the site and size the array strings accordingly To prevent inverter damage the array s maximum DC voltage in the coldest expected temperature with both manufacturer coefficient and NEC derating must not exceed 600 Vdc Panel voltage decreases in high temperatures This will affect the panels V Mpp and V Again the manufacturer s coefficient must be used with the highest expected temperature to determine the minimum Vypp and Voc Note The GT PV array sizing tool is available at www xantrex com 975 0320 01 01 Mounting the Inverter Mounting the Inverter Dimensions and Knockout Locations 2 7 cm 1 conduit holes with threaded caps both sides 13 7 s 3 8 4 5 16 The dimensions of the inverter and the mounting bracket and some of the knockout locations on the wiring disconnect box are shown in Figure 2 1 and Figure 2 2 Four 27 or 35 mm 1 or 1 3 8 inch dual knockouts are provided on the back and bottom of the unit to accommodate wiring Four 27 mm 1 inch conduit holes on the sides of the wiring disconnect box two on each side are filled
34. anel Display Screens and What They M ean Table 5 7 Additional Offline M ode Screens for Each GT Inverter Unit in a Multiple Unit System Tap Display Description Sth time Unit DU Power being produced by this unit now Today 1 25kWh Cumulative energy produced by this unit today 6th time Unit Lifetime Lifetime energy produced by this unit 150kWh 5 7 Monitoring the Inverter Fault Mode When a fault state is detected the appropriate fault message appears on the front panel display at the next screen refresh within 2 seconds The GT Inverter fault message screens are shown in Table 5 8 Fault Mode causes These message screens only appear when there is a fault and then flash alternately with the Inverter Offline default screen Table 5 5 until the fault is corrected Table 5 8 Fault Message Screens Display DC Voltage Fault 145 5V Appears When The actual DC voltage is over or under the allowable range 240 to 600 Vdc Self clearing no action required The PV array should be configured such that DC voltage does not fall below 240 Vdc or rise above 600 Vdc AC Voltage Fault 280V The actual AC voltage is over or under the allowable range as specified in Output on page A 2 This is a utility fault 1t will clear itself when the AC voltage comes within the specified range Frequency Fault 0 OHz The actual Frequency is over or under the allowable range as specified in Output
35. ation Inverter Location WARNING Burn hazard Do not install in a location where people can accidentally come into contact with the front of the inverter High temperatures can be present on the face of the inverter causing a potential burn hazard In extreme conditions the GT Inverter chassis can reach temperatures over 70 C 158 F which can cause skin burns if accidentally touched Ensure that the GT Inverter is located away from normal traffic areas Installation 2 2 Inverter failure due to improper installation will void the inverter warranty Consider the following when determining where to install the inverter Indoor s Outdoor Orientation Temperature Ground Clearance Distance B Debris free The GT Inverter uses a Type 3R rated enclosure vertical mount only that can be mounted indoors or outdoors Type 3R enclosures are intended for outdoor use primarily to provide a degree of protection against falling rain and to be undamaged by the formation of ice on the enclosure While the 3R rated enclosure protects the GT Inverter from moisture outdoor installations should be located away from lawn sprinklers and other sources of spray A sun shade is recommended for outdoor installations In bright sun conditions when the GT Inverter is at or near full output with an ambient temperature above 40 C 104 F shading the unit will help increase inverter performance A sun shade can also
36. b Nm 14 10 2 5 6 0 25 35 3 0 4 0 8 10 30 40 3 44 5 6 4 16 25 35 45 4 0 5 0 Important In most models the negative PV conductor is internally bonded to the ground system within the inverter s ground fault detection circuit Inverter models marked with the POS suffix are positive grounded and have the positive PV conductor internally bonded to the ground system through the inverter s ground fault protection circuit It is important that the negative or positive PV conductor is not bonded to the ground at any other point in the system 975 0320 01 01 Grounding Requirements PV1 String 1 PV1 String 2 PV1 String 3 gt E gt g gt b I gt a a a e y L1 amp L2 I a Neutral ls PV PV4 LIL2 N G A ollellelle onenenenene eene Ground 9999900999 Grounding electrode Figure 3 2 Grounding Diagram Ground Fault Fuse The GT Inverter is equipped with a 600 volt 1 amp ground fault protection fuse replace with Littelfuse KLKD 1 or equivalent WARNING Shock hazard Do not attempt to service the ground fault protection fuse yourself This should only be done by qualified service personnel such as certified electricians or technicians See Replacing the Ground Fault Prot
37. ble 5 1 Startup Screens on GT Inverter Front Panel Display Display Duration Description Vph 130V 3 seconds Vph phase to neutral rms high threshold Clr t 1 00s voltage setting the threshold at which the inverter disconnects itself from the power grid when abnormally high phase to neutral AC voltage is detected Clr t clear time Vpl 107V 3 seconds Vpl phase to neutral rms low threshold voltage Cir t 2 00s setting the threshold at which the inverter disconnects itself from the power grid when abnormally low phase to neutral AC voltage is detected Clr t clear time Fhz bO 4Hz 3 seconds Fh frequency high threshold setting the threshold Clr t lt O lbs at which the inverter disconnects itself from the power grid when abnormally high frequency is detected Clr t clear time Fl 59 4Hz 3 seconds Fl frequency low threshold setting the threshold Clr t lt O lbs at which the inverter disconnects itself from the power grid when abnormally low frequency is detected Clr t clear time Reconnect Delay 3 seconds Setting for the reconnect delay for the protection 305 00s timer After a fault clears for the specified clear time the protection timer starts counting down before the inverter attempts to deliver power to the grid The voltage and frequency thresholds clear times and reconnect delay in Table 5 1 can be adjusted for multi unit installations producing 30 kW or more with t
38. connect them to the terminal blocks inside the inverter Ensure all connections are correctly wired and properly torqued to a maximum 16 in Ib 1 8 Nm Follow the startup procedure as described on page 4 1 975 0320 01 01 Identifying Error Fault Conditions and Solutions Identifying Error Fault Conditions and Solutions Most error or fault conditions will be identified by fault message screens on the GT Inverter front panel LCD These are described in the Fault Mode section on page 5 8 of this manual Most of these fault conditions are self correcting and require no user action to remedy See Front Panel Display Screens and What They Mean on page 5 2 for more information Table 6 1 is intended to assist in determining fault conditions that may require user action to remedy Table 6 1 Troubleshooting the GT Inverter Problem Possible Cause Solution The inverter s LEDs and display are blank and the inverter does not operate in sufficient sunlight DC AC Disconnect Switch is off Turn on DC AC Disconnect Switch and breakers in the sequence described in Startup Procedure on page 4 1 The display reads Inverter Offline and AC Voltage Fault Utility service panel breakers are switched off AC grid voltage is not present or incorrect Turn on utility panel breakers Check AC connections at the inverter s terminals Ensure AC voltage within the range specified in Output on pa
39. ct and return shipment to the customer via a Xantrex selected non expedited surface freight within the contiguous United States and Canada Alaska and Hawaii are excluded Contact Xantrex Customer Service for details on freight policy for return shipments outside of the contiguous United States and Canada How do you get service If your product requires troubleshooting or warranty service contact your merchant If you are unable to contact your merchant or the merchant is unable to provide service contact Xantrex directly at Telephone 1 800 670 0707 toll free North America 1 360 925 5097 direct Fax 1 360 925 5143 direct Email customerservice xantrex com Direct returns may be performed according to the Xantrex Return Material Authorization Policy described in your product manual For some products Xantrex maintains a network of regional Authorized Service Centers Call Xantrex or check our website to see if your product can be repaired at one of these facilities What proof of purchase is required In any warranty claim dated proof of purchase must accompany the product and the product must not have been disassembled or modified without prior written authorization by Xantrex Proof of purchase may be in any one of the following forms e The dated purchase receipt from the original purchase of the product at point of sale to the end user or e The dated dealer invoice or purchase receipt showing original equipment manufacturer OE
40. ection Fuse on page 6 4 975 0320 01 01 3 3 Wiring the Inverter Wiring Requirements WARNING Shock hazard Check for existing electrical or plumbing prior to drilling holes in the walls The AC and DC terminal blocks in the GT Inverter accept wire sizes from 14 AWG to 6 AWG Undersized wiring can result in significant power losses and reduction in system efficiency Strip all wires 9 mm 3 8 inch and torque to a maximum 16 in Ib 1 8 Nm Use copper conductors only rated 90 C For safety and compliance with the NEC run AC DC and communication wires in separate conduits A WARNING Fire hazard Wiring should not be undersized Wire sizes must be coordinated with the array maximum short circuit current or the AC breaker sizes used Ensure wiring is in accordance with the NEC or applicable codes AC Circuit Breaker Requirements The main utility service panel must dedicate a double pole breaker to operate each GT Inverter installed This breaker must be sized to handle the rated maximum output voltage and current of the GT Inverter see Electrical Specifications Output on page A 2 DC AC Disconnect Switch 3 4 The wiring box includes a 600 volt PV Utility disconnect switch that switches both AC and DC at the same time Depending on the installation an external AC and or DC disconnect may be required if the inverter is installed in a location not easily accessible to utility or fire perso
41. erter can be mounted to a vertical surface such as wallboard wood siding concrete wall or pole assembly Ensure the mounting surface or structure can support the weight of the inverter 26 kg 58 lb as well as the associated wiring and conduit Installation onto wallboard requires either the use of a supporting material such as plywood or securing the mounting screws to supporting wall studs Important e Local codes may impose additional mounting requirements in earthquake or other high risk areas e No mounting hardware is supplied with the GT Inverter It is recommended to use 6 mm 4 inch diameter fasteners However because mounting surfaces can vary installers must select appropriate hardware for each installation 975 0320 01 01 2 7 Installation Mounting the Inverter on the Bracket Place the inverter s mounting hooks over the flanges on the bracket Ensure the inverter is seated properly then secure the bottom of the inverter with appropriate screws or anchors through the mounting slots Flange with mounting slots el eno Ne el LT e d 110 cm 43 100 cm 39 Ground clearance required for outdoor installation me VT Ground floor Figure 2 3 Placing the Inverter on the Mounting Bracket 2 8 975 0320 01 01 Wiring the Inverter Chapter 3 provides information about DC and AC wiring and grounding the GT Inverter and the PV array This chapter does
42. esidential Commercial Length of time inverter has been installed AC wiring size and length DC wiring size and length Description of fault messages and or indicators on front panel Description of problem PV Details Solar Panel Mount L Roof C Pole C Ground Solar Panel Brand and Model Nominal Voltage Range Vdc Peak Open Circuit Voltage Vdc Nominal Current Rating Adc Maximum Current Rating Adc Solar Tracker Yes No String 1 of Panels Series Parallel String 2 of Panels Series Parallel String 3 of Panels Series Parallel String 4 of Panels L_ Series Parallel WA 4 975 0320 01 01 Index A abbreviations and acronyms iv AC circuit breaker requirements 3 4 AC grounding requirements 3 1 AC output voltage ratings A 2 AC wiring instructions 3 10 acceptable wire sizes A 5 accessing AC and DC terminals 3 5 adjusting utility disconnect settings A 3 C checking AC utility voltage 4 2 checking PV array DC voltage 4 2 communication between multiple inverters 3 12 communications cabling 3 13 installing for inverters in parallel 3 15 standard CAT 5 wiring 3 14 Customer Service preparing to call WA 4 D DC wiring instructions 3 7 derating chart A 3 dimensions A 5 display accuracy A 5 E efficiency chart A 4 electrical specifications A 2 enclosure type A
43. formation for an individual inverter in a system See To view unit specific screens in a multiple unit system on page 5 5 Without communications wiring network cables each inverter in a system will only display information pertinent to the unit and its associated PV array Xanbus Network Technology GT Inverters use Xanbus technology to communicate with other GT Inverters Network connections for multiple inverters are laid out in a daisy chain pattern each device on the network linked together with separate lengths of cable as shown in Figure 3 11 N N Network terminator Xanbus cable Network terminator Figure 3 11 Daisy Chain Layout CAUTION Equipment damage Connect only Xanbus enabled devices Although the cabling and connectors used in this network system are the same as ethernet connectors this network is not an ethernet system Equipment damage may result from attempting to connect Xanbus to different systems 3 12 975 0320 01 01 Communications Wiring for Multiple Inverters Terminators The male network terminator supplied with each GT Inverter Figure 3 12 is required at each end of the network to ensure the communication signal quality on the netwo
44. g the Inverter 6 6 Identifying Error Fault Conditions and Solutions 6 9 Specifications Electrical Specifications A 2 Input A 2 Output A 2 Adjustable Voltage Frequency and Reconnection Settings A 3 Output Power Versus Ambient Temperature A 3 Efficiency A 4 Environmental Specifications A 4 User Display 4 44 4444444 HH HH HH A 4 Display Accuracy A 5 975 0320 01 01 Contents Mechanical Specifications A 5 Regulatory Approvals A 5 Warranty and Return Information WA 1 Oe eee eee IX 1 975 0320 01 01 xi xii Introduction Chapter 1 contains information about the features and functions of the Xantrex Grid Tie Solar Inverter About the Xantrex Grid Tie Solar Inverter The Xantrex Grid Tie Solar Inverter GT Inverter is designed to convert solar electric photovoltaic or PV power into utility g
45. ge A 2 is present The display reads Inverter Offline with sufficient sunlight DC breakers are switched off if installed or external DC fuses are blown if installed DC array voltage is not present Turn on any DC breakers and check any DC fuses Check DC connections at the inverter s positive and negative DC terminals Check for incorrectly wired PV arrays The display reads Inverter Offline and DC Voltage Fault with sufficient sunlight DC voltage is present but incorrect Check DC connections at the inverter s positive and negative DC terminals Check for incorrectly wired PV arrays Ensure a voltage between 240 and 550 Vdc is present at the inverter s terminals Only the inverter RED LED is illuminated and the display reads Ground Fault 975 0320 01 01 Ground fault condition detected on the PV array The PV system should be checked by a qualified electrician and repaired See Table 5 8 on page 5 8 6 9 Specifications Appendix A contains information about the specifications of the Xantrex Grid Tie Solar Inverter The topics in this appendix are organized as follows Electrical Specifications on page A 2 Output Power Versus Ambient Temperature on page A 3 Efficiency on page A 4 Environmental Specifications on page A 4 User Display on page A 4 Mechanical Specifications on page A 5 Regulatory Approvals on page A 5 Specificatio
46. he Wiring Box Cover AC and DC connections are made at the wiring terminals shown in Figure 3 5 The clear plastic insulating barrier inside the wiring box is a permanent component It is intended to separate the high voltage AC and DC wiring from any communications cabling When wiring the unit it is necessary to pull the barrier back to access the wiring terminals See Figure 3 4 After completing the wiring return the insulating barrier to its original position 3 5 Wiring the Inverter Lift bottom edge of barrier to access wiring terminals Figure 3 4 Insulating Barrier Location Figure 3 5 AC and DC Terminal Block Location 3 6 975 0320 01 01 Connecting the DC Wiring Connecting the DC Wiring WARNING Shock hazard Use caution when working around sources of DC power Although the DC AC disconnect switch disconnects the inverter from DC power hazardous voltages from paralleled PV strings will still be present upstream of the switch and inside the wiring box To reduce the risk of shock during installation cover the array with an opaque dark material before making any connections ensure the DC AC Disconnect Switch is set to OFF see Figure 3 6 and always test for voltage before touching exposed wiring or devices Figure 3 6 DC AC Disconnect Switch Positions The following procedure is illust
47. he permission of the local utility using GTConfigLite software T The clear time is the total time to disconnect the output from the grid It is the sum of the debounce time and the hardware delay time The debounce time is the protection processor waiting time before it declares a fault This delay is necessary to avoid nuisance trips The hardware delay time 100 ms maximum is the time taken by the hardware to disconnect the output from the grid after a fault has been declared The protection timer begins counting down the reconnect delay during startup and the Reconnecting in sss seconds screen appears until the timer countdown is complete 975 0320 01 01 5 3 Monitoring the Inverter Normal Operation Mode Normal Operation default display More screens for all systems 5 4 The LCD on the GT Inverter is refreshed every two seconds so all readings are current to within two seconds There is a default display available at all times and a series of additional screens that can be displayed by tapping the Xantrex logo near the LCD to change the display After the protection timer has completed its countdown and during normal operation the GT Inverter displays the normal operation message screen shown in Table 5 2 Table 5 2 Normal Operation Default Screen Display Description System 20004 Today 9 875kWh Power being produced by the system now Cumulative energy produced by the system today all numbers in
48. hooting the unit It does not provide details about particular brands of photovoltaic PV panels You need to consult individual PV manufacturers for this information This manual does not provide sufficient information for anyone but a qualified installer to install this product Installers should be electricians or technicians fully educated on the hazards of installing electrical equipment The monitoring and operation information in this manual is intended for anyone who needs to operate a GT Inverter This manual is organized into 6 chapters and an appendix Chapter 1 contains information about the features and functions of the Xantrex Grid Tie Solar Inverter Chapter 2 provides information about installing the GT Inverter It contains information on determining a suitable location for installation PV array requirements and procedures for mounting the unit Chapter 3 provides information about DC and AC wiring and grounding the GT Inverter and the PV array Chapter 4 contains information on starting up the Xantrex Grid Tie Solar Inverter and performing a functional test Chapter 5 contains information for understanding the LCD screens and the LED indicators Chapter 6 contains information about how to provide general maintenance for the Xantrex Grid Tie Solar Inverter It also provides information about troubleshooting the unit Appendix A contains information about the specifications of the Xantrex Grid Tie Solar Inverter
49. ion 7 Do not disassemble the GT Inverter It contains no user serviceable parts See Warranty for instructions on obtaining service Attempting to service the GT Inverter yourself may result in a risk of electrical shock or fire and will void the factory warranty 8 Authorized service personnel should reduce the risk of electrical shock by disconnecting both AC and DC power from the GT Inverter before attempting any maintenance or cleaning or working on any circuits connected to the inverter Turning off controls will not reduce this risk Internal capacitors remain charged for 5 minutes after disconnecting all sources of power 9 Normally grounded conductors may be ungrounded and energized when a ground fault is indicated 10 The GT Inverter must be connected to an AC equipment grounding conductor directly and a DC grounding electrode conductor to a single point ground 11 The AC Neutral connection is for voltage sensing only and is not used as a current carrying conductor nor is it bonded to ground N CAUTION The following caution identifies conditions or practices that could result in damage to the unit or other equipment Observe the clearance recommendations as described on page 2 7 Do not install the GT Inverter in a zero clearance or non ventilated compartment Overheating may result 975 0320 01 01 vii Safety Location of Safety and Data Labels The figure below shows the location of the safety label and the dat
50. its energy output goes down Roof mounted arrays also collect the heat generated by the roof surface or trapped under the array and will produce less output than pole mounted arrays which allow greater air circulation behind the panels Maintenance and Troubleshooting Angle of the sun Partial shade Other Factors 6 2 Important The GT Inverter will reduce its energy output to protect its electronic circuits from overheating and possible damage in high heat conditions For maximum output in hot climates mount the GT Inverter in a shaded location with good air flow The angle of the sun in relation to the PV array surface the array orientation can dramatically affect the PV array output The array energy output will vary depending on the time of day and time of year as the sun s angle in relation to the array changes Sunlight output decreases as the sun approaches the horizons such as in winter in North America due to the greater atmospheric air mass it must penetrate reducing both the light intensity that strikes the array s surface and spectrum of the light In general you can expect only four to six hours of direct sunlight per day Shading of only a single module of the array will reduce the output of the entire system Such shading can be caused by something as simple as the shadow of a utility wire or tree branch on part of the array s surface This condition in effect acts like a weak battery in a flashlight red
51. line and Fault All single units display a basic set of message screens multiple unit systems display additional screens in Normal Operation and Offline modes In addition there are Special message screens that may appear in any operational mode All these message screens are described in more detail in the following tables During startup the GT Inverter displays several message screens on its front panel LCD These screens appear in the following order Table 5 1 Table 5 1 Startup Screens on GT Inverter Front Panel Display Display Duration Description Power 5000W 5 seconds Startup message 1 Maximum output power and Region NA 240YV Region nominal output voltage Flash 03 00 15 seconds Startup message 2 Model and revision numbers ROM 03 00 for Flash and ROM memory on the GT Inverter The ROM revision number applies to the protection processor Vh Pb1V 3 seconds Vh phase to phase rms high threshold voltage Clr t 1 00s setting the threshold at which the inverter disconnects itself from the power grid when abnormally high phase to phase AC voltage is detected Clr t clear time t V1 214V 3 seconds VI phase to phase rms low threshold voltage Cir t lt 2 00s setting the threshold at which the inverter disconnects itself from the power grid when abnormally low phase to phase AC voltage is detected Clr t clear time 975 0320 01 01 Front Panel Display Screens and What They M ean Ta
52. nance and Troubleshooting Replacing the Inverter 6 6 If your GT Inverter requires servicing you can replace it with another inverter leaving the existing wiring box in place This means that you do not have to disturb wiring connections in the wiring disconnect box However you do have to disconnect wiring between the inverter and the wiring disconnect box mano Shock hazard Replacing the inverter according to these procedures should only be performed by qualified service personnel such as a certified electrician or technician e Separating the inverter from the wiring box breaks the ground path between the grounded conductor and earth ground When the wires between the inverter and wiring box are disconnected and exposed both PV leads are floating at the array open circuit voltage If there is leakage current from the POSITIVE PV lead to ground at the array touching the NEGATIVE PV lead could cause a life threatening shock even with the disconnect switch turned off Ungrounded DC current within the inverter presents an extreme shock hazard Cover PV arrays with an opaque material during this procedure e Use insulated tools only when disconnecting wires between the inverter and wiring box Cap all disconnected wires with wire nuts Recommended tools Insulated screwdriver e Wire nuts 7mm socket and small ratchet or 7 mm open wrench WARNING Shock hazard The inverter should only be removed from the wiring b
53. network components and part numbers Pre made cables are available in standard lengths from 3 feet to 75 feet Call your dealer or visit www xantrex com to purchase network components Table 3 3 Network Components and Part Numbers Network Component Part Number Network termination Male 2 per pack 809 0901 Network cable 3 ft 0 9 m 809 0935 Network cable 5 feet 1 5 m 809 0936 Network cable 7 feet 2 0 m 809 0937 Network cable 10 feet 3 0 m 809 0938 Network cable 14 feet 4 3 m 809 0939 Network cable 25 feet 7 6 m 809 0940 Network cable 50 feet 15 2 m 809 0941 Network cable 75 feet 22 9 m 809 0942 3 14 975 0320 01 01 Communications Wiring for Multiple Inverters Guidelines for Routing the Network Cables WARNING Shock hazard Do not route the network cables in the same conduit or panel as the AC and DC power cabling The cables should run on top of the insulation barrier inside the wiring disconnect box and out the side conduit hole avoiding any contact with the AC and DC wiring A CAUTION Unpredictable device behavior Do not connect one end of the network to the other to make a ring or loop Connecting Network Cable Between Multiple Inverters The following procedure is illustrated in Figure 3 11 The procedure assumes only two inverters are connected However there can be up to ten inverters wired in this configuration A WARNING Shock hazard Befo
54. ng conductor The other inverters will use tap connectors Connection is then made to the DC or AC grounding electrode as per NEC 690 47 Ensure all connections are correctly wired and properly torqued to a maximum 16 in Ib 1 8 Nm E eem Utility Meter o o o e PV PV Lil2NG elelelelels elelele 9999979 ANA e qu e ima e go o E a Ground 8980080009999 PV PVH BRODnnmm ienenenenene i ajo e b m S E LIL2 N G elelele Main Utility Service Panel e g rj G od eno Grounding not shown e EE AA E E Figure 3 10 DC and AC Wiring With Multiple GT Inverters 975 0320 01 01 3 11 Wiring the Inverter Communications Wiring for Multiple Inverters Communications wiring between multiple GT Inverters allows information about each inverter and its associated PV array to be communicated between all of the inverters in the system Information about the entire system can be displayed on any inverter LCD in the system For example in a two inverter system if inverter 1 is producing 1500 W and inverter 2 is producing 2000 W both inverters display a total system power of 3500 W The cumulative energy produced by both inverters that day is also displayed You can still view in
55. nnect switch on the GT Inverter 4 2 To replace the wiring disconnect box cover 1 Ensure the clear plastic insulating barrier is properly positioned in the wiring box Place the cover in position on the wiring box being careful not to pinch any wires inside Ensure that the two screw holes in the bottom of the wiring box cover are aligned with the corresponding holes in the bottom of the wiring box Replace the two screws removed when the cover was removed see Accessing the Wiring Terminals on page 3 5 and tighten securely 975 0320 01 01 Commissioning Multiple Inverters Starting up the GT Inverter To start up the inverter 1 Switch the DC AC disconnect switch to the ON position see Figure 4 1 2 Check the GT Inverter LCD The startup screens see Table 5 1 on page 5 2 should appear for five seconds each and then the Reconnecting in sss seconds special screen see Table 5 10 on page 5 10 will appear until the 305 second default value protection timer countdown is completed DC AC disconnect switch F OFF ON Figure 4 1 DC AC Disconnect Switch Positions Commissioning Multiple Inverters 975 0320 01 01 In an installation with multiple GT Inverters special commissioning procedures must be followed in order to safely determine if any DC wiring problems exist Important Before performing this procedure all inverters should be off with the DC AC disconnect switch in the OFF po
56. nnel Consult local authorities for additional information Important The DC terminal block has six inputs for connecting up to three PV strings In accordance with applicable codes if the array consists of more than two strings external fusing may be required to prevent conductor overloads 975 0320 01 01 Accessing the Wiring Terminals WARNING Shock hazard Do not remove the wiring disconnect box The 600 volt DC AC disconnect in the wiring box meets NEC Article 690 It is a non serviceable component and shall remain in place Removal can expose energized conductors Use caution when working around sources of DC power Although the DC AC disconnect switch disconnects the inverter from DC power hazardous voltages from paralleled PV strings will still be present upstream of the switch and inside the wiring box To reduce the risk of shock during installation cover the array with an opaque dark material before making any connections and always test for voltage before touching exposed wiring or devices Accessing the Wiring Terminals Insulating barrier 975 0320 01 01 You must remove the GT Inverter wiring box cover to access the terminal blocks ground bar and communications ports To remove the wiring box cover e Using a Phillips screwdriver remove the two screws on the bottom side of the wiring box and lift the cover off the wiring box see Figure 3 3 Wiring box cover screws Figure 3 3 Removing t
57. ns Electrical Specifications Input Input voltage Maximum Power Point range 240 to 550 Vdc Absolute maximum array open circuit voltage 600 Vdc Maximum input current 22 0 Adc Maximum array short circuit current 24 Adc Reverse polarity protection Short circuit diode Ground fault protection Output GF detection Ip f gt 1 A Maximum output power 5000 W AC Nominal output voltage 240 V Operating range utility voltage 211 to 264 Vac Nominal output frequency 60 Hz Operating range utility frequency 59 3 to 60 5 Hz Startup current 0 Aac Maximum continuous output current 21A Output overcurrent protection 30 ARMS Maximum utility backfeed current 0A Total Harmonic Distortion lt 5 Power factor gt 0 95 Utility monitoring islanding protection Vac fac as per UL 1741 2005 Output characteristics Current source Output current waveform Sine wave Factory settings can be adjusted with the approval of the utility This unit is provided with adjustable trip limits and may be aggregated above 30 kW on a single Point of Common Coupling See Adjustable Voltage Frequency and Reconnection Settings on page A 3 975 0320 01 01 Output Power Versus Ambient Temperature Adjustable Voltage Frequency and Reconnection Settings Utility disconnect settings can be adjusted using the GTConfigLite software tool Permission of the utility must be granted befo
58. nsure the gasket on the wiring disconnect box is clean and undamaged The gasket must create a water tight seal between the inverter and wiring disconnect box Four nuts to secure inverter Gasket Figure 6 3 Wiring Disconnect Box and Removable Inverter 975 0320 01 01 6 7 Maintenance and Troubleshooting Back view TPS Top mounting hook goes over wall mounted bracket Lower flange goes behind wiring disconnect box Wiring disconnect box gao permanently mounted o o 4 O 0 to bracket a cnn gt c Figure 6 4 Inverter and Wiring Disconnect Box Sections To replace the inverter on the wiring box 1 6 8 If it has not already been removed remove the display front panel cover on the inverter Mount the inverter on the upper mounting bracket above the wiring disconnect box ensuring that the inverter s lower flange goes behind the wiring disconnect box See Figure 6 4 Pull the connecting DC and AC wires back out of the wiring box and into the inverter Replace the nuts that connect the inverter and the wiring disconnect box Tighten each nut alternately to clamp the gasket between the inverter and wiring disconnect box Secure all nuts tightly Remove the wire nut from the PV NEGATIVE wire and reconnect it to the terminal block inside the inverter Uncap the remaining DC and AC wires and re
59. oltages are present from two sources Use extreme caution during startup procedure Before applying power to the GT Inverter ensure all AC and DC wiring is correct Starting the Inverter Checking the PV Array DC Voltage To check the PV array DC voltage 1 Uncover the PV arrays and expose them to full sunlight The sunlight must be intense enough to produce the required output voltage Measure the PV array open circuit DC voltage across the DC positive and negative terminals This voltage must be greater than 150 volts DC to energize the electronics and less than 600 volts DC to prevent damage to the inverter Checking the AC Utility Voltage To check the AC utility voltage 1 2 Switch on the main and inverter breakers in the main electrical service panel Using an AC voltmeter measure the AC open circuit utility voltage between L1 and L2 Ensure this voltage is at approximately the nominal value The inverter operates with a line to line voltage L1 to L2 range around the nominal value See Electrical Specifications Output on page A 2 for the utility voltage operating range for your GT Inverter model Replacing the Wiring Disconnect Box Cover After performing the voltage checks replace all covers that were removed during installation and startup A WARNING Shock hazard Before reattaching covers turn OFF the breaker switches in the main utility service panel and the DC AC Disco
60. onnect your computer to the GT Inverter you must use a serial DB9 straight through cable The RS 232 connector on the GT is configured as follows e Pin 2 transmit e Pin 3 received e Pin 5 ground All other pins are unused To connect a single GT Inverter to a personal computer WARNING Shock hazard Before opening the GT Inverter wiring disconnect box turn OFF the breaker switches connected to the GT Inverter AC output and turn the DC AC Disconnect switch to the OFF position Hazardous voltage will still be present on the DC input PV terminals located under the clear plastic insulation barrier Do not remove the insulation barrier during this procedure To reduce the risk of shock cover the array with an opaque dark material 1 Feed the male end of the serial cable through a side conduit hole on the GT Inverter If the end of the serial cable is too large to fit through the conduit hole you may need to use two DB9 to CAT 5 adaptors Plug the DB9 end of the adapter into the GT Inverter and feed the CAT 5 end of the cable out the conduit hole Use another adapter to convert the CAT 5 end of the cable back to DB9 Plug the male end of the serial cable into the GT Inverter RS 232 port Plug the female end of the serial cable into your computer s serial port Replace the wiring disconnect box cover HN PON Turn the DC AC disconnect switch to the ON position and turn the main utility panel breaker switches
61. orrect operation of the GT Inverter both on initial operation and periodically through its life as required by the utilities This test ensures that the Xantrex Grid Tie Solar Inverter does not send electricity to the utility grid when the local utility has shut off the grid for repairs or when the utility wiring is damaged When operation of the inverter has been verified and the unit is producing power run the disconnect test as described in this procedure To run the disconnect test 1 Switch off the AC circuit for the inverter This can be accomplished by switching the breaker on the main panel that feeds the inverter s The disconnect for the home or business may be used as well 2 Have someone watch the front panel of the inverter to ensure the green light on the front of the inverter goes out within two seconds The green light goes out when the AC circuit is switched off disconnecting the inverter from the AC grid The front panel display will show an AC Fault display indicating that the AC is out of the operating range 3 Switch on the AC circuit for the inverter The inverter responds by starting its 305 second protection timer Ensure that the inverter does not produce power before the countdown is over After completing the countdown the green light turns on and the inverter begins delivering power The display returns to showing the power being produced and the total kWh produced to date Important The default vol
62. ox when a replacement inverter is immediately available When replacing an inverter ensure the DC AC Disconnect switch is locked or otherwise secured in the OFF position Do not leave the top of the wiring box exposed for extended periods of time WARNING Shock hazard Before replacing the inverter turn OFF the breaker switches in the main utility service panel and the DC AC Disconnect switch on the GT Inverter Cover the PV arrays with an opaque material To remove the inverter from the wiring box 1 Turn OFF the breaker switches in the main utility service panel and the DC AC Disconnect switch on the GT Inverter Disable the output of the PV arrays by covering them with an opaque material 2 Remove the wiring disconnect box cover and the display front panel cover see Figure 3 3 on page 3 5 and Figure 6 2 on page 6 5 975 0320 01 01 Replacing Parts 3 Using an insulated screwdriver disconnect the PV NEGATIVE wire from the terminal block inside the inverter Cap the wire immediately with a wire nut 4 Disconnect the remaining AC DC and network cables between the inverter and the wiring box inside the inverter Cap all disconnected AC and DC wires with wire nuts 5 Inside the inverter remove the four nuts attaching the wiring box to the inverter See Figure 6 3 Push the connecting DC and AC wires down inside the wiring box Lift the inverter off the mounting bracket leaving the wiring box in place E
63. parating the inverter and wiring disconnect box or removing the wiring disconnect box cover can expose energized conductors PV input circuits in the wiring box ahead of the switch remain energized even when the switch is in the off position hazardous voltage will still be present on the DC input PV terminals under the clear plastic insulation barrier inside the wiring disconnect box 1 2 975 0320 01 01 About the Xantrex Grid Tie Solar Inverter Front Panel Features Heat Sink M LCD LED Indicator Lights o Grid Tie Solar Inverter im ww ult Wiring Disconnect Box aa DC AC Disconnect Switch pop we Mounting Slots Figure 1 2 Main Features of the GT Inverter I Wiring Disconnect Box 975 0320 01 01 The wiring disconnect box is standard for all North American models of the GT Inverter The wiring disconnect box provides a location for making AC DC and ground connections It also contains the DC AC PV array utility disconnect switch When used with the GT Inverter the DC AC disconnect switch is 600V AC and DC rated and is identified on the outside by an illustration showing the open and closed switch positions The switch is lockable and meets NEC section 690 requirements as a
64. r from 6 6 RJ45 connectors 3 6 terminal block location 3 6 X Xanbus technology 3 12 Xantrex web site v 975 0320 01 01 Xantrex Technology Inc 1 800 670 0707 Tel toll free NA 1 360 925 5097 Tel direct 1 360 925 5143 Fax direct customerservice xantrex com www xantrex com 975 0320 01 01 Printed in China
65. r reference and be prepared to supply e The serial number of your product e Information about the installation and use of the unit e Information about the failure and or reason for the return e A copy of your dated proof of purchase Record these details in on page WA 4 Return Procedure Package the unit safely preferably using the original box and packing materials Please ensure that your product is shipped fully insured in the original packaging or equivalent This warranty will not apply where the product is damaged due to improper packaging 2 Include the following The RMA number supplied by Xantrex Technology Inc clearly marked on the outside of the box Areturn address where the unit can be shipped Post office boxes are not acceptable e A contact telephone number where you can be reached during work hours e A brief description of the problem 3 Ship the unit prepaid to the address provided by your Xantrex customer service representative If you are returning a product from outside of the USA or Canada In addition to the above you MUST include return freight funds and are fully responsible for all documents duties tariffs and deposits If you are returning a product to a Xantrex Authorized Service Center ASC A Xantrex return material authorization RMA number is not required However you must contact the ASC prior to returning the product or presenting the unit to verify any return procedures that may apply to
66. rade electricity that can be used by the home or sold to the local power company Installing the GT Inverter consists of mounting it to the wall and connecting the DC input to a PV array and the AC output to the utility See Figure 1 1 for a simple diagram of a typical installation In order to operate the GT Inverter must have grid power available and connected It will not provide backup power if the AC grid fails de Utility Grid 7 Surplus power routed to Utility Grid 2 s Power routed DC converted ES E to AC Main Utility Service Panel E Xantrex J O CB GT Inverter Loads Figure 1 1 Basic System Overview Introduction PV compatibility Maximum Power Point Tracking MPPT High efficiency Expandable Communications protocol The GT Inverter is designed to take advantage of solar modules configured as high voltage PV string arrays single crystalline poly crystalline or thin film with a 240 to 550 Vdc input voltage Maximum Power Point range The GT Inverter uses Xantrex proprietary Maximum Power Point Tracking MPPT technology to harvest the maximum amount of energy from the solar array Xantrex MPPT learns your array s specific characteristics maximizing its output at all times The high frequency solid state design of the GT Inverter is extremely efficient up to 96 2 Multiple GT Inverters may be networked together for increased net metering capacity or future
67. rated in Figure 3 7 If there is more than one PV string label the positive and negative wire pairs appropriately for example PV1 String 1 POS PVI String 1 NEG PVI String 1 GND PVI String 2 POS etc To wire the PV array to the GT Inverter 1 Connect the POSITIVE wire from the PV1 string 1 to one of the PV terminals 2 Connect the NEGATIVE wire from the PV1 string 1 to one of the PV terminals 3 Repeat for the PV1 string 2 if there is one Repeat for the PV1 string 3 if there is one 5 Ensure all connections are correctly wired and properly torqued to a maximum 16 in lb 1 8 Nm 975 0320 01 01 3 7 Wiring the Inverter PV1 String 1 _ PV1 String 42 PV1 String 3 a a a Ce d s Grounding not shown Figure 3 7 DC Connections for Multiple PV Strings Important Depending upon installation and local codes fusing and or a combiner box may be required This fusing and combiner box are to be provided by the installer Important A DC grounding electrode conductor may be required by the AHJ Check local codes before installation 3 8 975 0320 01 01 Connecting the DC Wiring DC Wiring for Multiple Inverters For installations with multiple GT Inverters separate solar arrays are required for each unit The output of each GT Inverter feeds a separate dual pole 30 amp circuit breaker L1 and L2 in the main u
68. re adjusting any of these settings For more information about installing and using GI ConfigLite see the GTConfigLite User s Guide p n 976 0260 01 01 available on the software CD Setting Default Range Tolerance Phase to phase rms high threshold voltage 261 00 261 00 264 00 Er Phase to phase rms low threshold voltage 214 00 204 00 214 00 Phase to neutral rms high threshold voltage 130 50 130 50 132 00 Mas Phase to neutral rms low threshold voltage 107 10 102 00 107 10 Frequency high threshold 60 40 60 40 60 60 Pen Frequency low threshold 59 40 57 00 59 80 Voltage rms High Clearing Time ms lt 1000 1000 2000 Voltage rms Low Clearing Time ms lt 2000 2000 5000 i AG Frequency High Clearing Time ms lt 160 160 200 Frequency Low Clearing Time ms lt 160 160 300000 Reconnect Delay ms 305000 60000 305000 n a Output Power Versus Ambient Temperature Once the heat sink on the inverter reaches a maximum temperature limit the GT Inverter reduces its energy output to ensure maximum component ratings are not 975 0320 01 01 exceeded GT5 Output Power Derating vs Ambient Temperature 550VDC 5000 _ 4000 3000 o a 5 amp 2000 4 essee esee eee eee eee 3 o 1000 Lee eee eee 25 30 35 40 45 50 60 65 70 Temperature C Figure A 1 Output Power vs Ambient Temperature Specifications Efficiency Maximum efficienc
69. re opening the GT Inverter wiring disconnect box turn OFF the breaker switches connected to the GT Inverter AC output and turn the DC AC Disconnect switch to the OFF position Hazardous voltage will still be present on the DC input PV terminals located under the clear plastic insulation barrier Do not remove the insulation barrier during this procedure To reduce the risk of shock cover the array with an opaque dark material To provide communication between multiple inverters 1 Remove the wiring disconnect box cover from each unit 2 Connect the network cable to any RJ45 port in Inverter 1 3 Route the cable along the top of the insulation barrier and through a side conduit hole to Inverter 2 4 Connect the network cable to any RJ45 port in Inverter 2 For more than two inverters continue connecting cable as described above 6 Insert male network terminators into the empty RJ45 ports in the inverters at the beginning and end of the network There should be no empty RJ45 ports in any of the inverters Communications Wiring for Monitoring a Single Inverter 975 0320 01 01 You can view GT Inverter operational data on a personal computer using the Xantrex GT Solar Inverter Viewer GT View which you can download free of charge at www xantrex com To use GT View you must connect your computer s serial port to the GT Inverter RS 232 port see Figure 3 13 Wiring the Inverter RS 232 cable requirements To c
70. rk Figure 3 12 Male Network Terminator GT Inverter Xanbus Two RJ45 ports are provided in the GT Inverter accessible from the wiring box Ports See Figure 3 13 for the location of these ports RJ11 ports RJ45 RS 232 port used to connect a PC to use GT View not used Xanbus ports See page 3 15 and page 5 10 Figure 3 13 Xanbus RJ45 Ports in the GT Inverter Wiring Box Cabling Requirements CAUTION Equipment damage Do not use crossover cable in a Xanbus system The network uses Category 5 CAT 5 or CAT5e cable a standard cable available from any computer supply store The cable consists of eight conductors in four twisted pairs with an RJ45 modular connector wired to the T5684 standard Table 3 2 contains the arrangements of wire colors to pin numbers for the T568A standard 975 0320 01 01 3 13 Wiring the Inverter Table 3 2 T568A Standard Wiring CAT 5 Cable CAT 5e Cable Pin Number Conductor Name Insulation Color Insulation Color 1 NET_S White Green White Orange 2 NET_S Green Orange 3 NET_C White Orange White Green 4 CAN_L Blue Blue 3 CAN_H White Blue White Blue 6 NET_C Orange Green 7 NET_S White Brown White Brown 8 NET_C Brown Brown Pins 2 87654321 Figure 3 14 RJ45 Connector Purchasing Network Components Consult your system designer to determine what network components will be needed for your specific installation Table 3 3 provides a partial list of
71. sing GT View see page 3 15 If programmed the custom screens display as the fourth and fifth screens during the startup sequence They can also be viewed by tapping the unit during normal operation and fault mode The first custom screen is intended for the home owner to display information such as the name or location of the PV array associated with the inverter The second custom screen is intended for installers who can configure the screen to display for example contact information for service 975 0320 01 01 Status Indicator Lights Status Indicator Lights The GT Inverter has two status indicator lights LEDs located below the front panel LCD Figure 5 2 These LEDs indicate the inverter s status Table 5 11 and assist in troubleshooting the performance of the unit Only one indicator light will be lit at any time Table 5 11 Status Indicator LEDs LED on Means GREEN GT Inverter is on DC voltage and AC voltage are qualified and the protection timer has finished and delivering power No action required Turns off when a fault state is detected RED Ground fault condition detected Check for any fault messages on the display see Table 5 8 and refer also to Table 6 1 Troubleshooting the GT Inverter on page 6 9 to resolve the fault condition Green LED Grid Tie Solar Inverter Red LED Figure 5 2 S
72. sition To commission multiple inverters 1 Uncover the PV arrays and or close the main DC disconnect switch if one is installed 2 Start the first inverter by turning the DC AC disconnect switch to the ON position 3 Wait for the input current to rise above 1 A This information is displayed on the Array Readings screen To display the Array Readings screen tap the unit four times 4 After the input current has risen above 1 A if the inverter is still operating normally switch off the inverter by turning the DC AC disconnect switch to the OFF position Proceed to step 5 4 3 Starting the Inverter If the inverter stops operating after the input current has risen above 1 A turn the unit off remove DC power and have a certified electrician or technician inspect the ground fault protection fuse If the fuse has blown a DC wiring problem may exist Check all DC wiring to ensure that the unit is connected to a single PV array 5 Proceed to the next inverter and perform the same test See Figure 4 2 for an example of the recommended commissioning sequence MEN A EN AN em y ON OFF OFF I l N 7 EN OFF ON OFF LL Y AA N W W e OFF OFF ON J u EN d Figure 4 2 Commissioning Sequence for Multiple Inverters 4 4 975 0320 01 01 Disconnect Test Disconnect Test The disconnect test is designed to verify c
73. t voltages Excessive debris such as dust leaves and cobwebs can accumulate on the unit interfering with wiring connections and ventilation Do not install in a location where debris can accumulate under a tree for example 975 0320 01 01 Planning the Installation PV Array Voltage and MPPT Requirements WARNING Shock hazard Whenever a PV array is exposed to sunlight a shock hazard exists at the output wires or exposed terminals To reduce the risk of shock during installation cover the array with an opaque dark material before making any connections and always test for voltage before touching exposed wiring or devices MPPT operational window The MPPT software maximizes the output energy of solar arrays as long as the operating voltage is within the MPPT operational window Ensure that the PV array used in the system operates within the MPPT operational window Effects of array voltages outside of the MPPT operational window are shown in Table 2 1 Table 2 1 MPPT Operational Window Voltage Effect of Array Voltage Inverter Mode Voc lt 240 Vdc Inverter not operating Off line Vmpp lt 240 Vdc Operating voltage shifts to 240 Vdc the array is not at its On line low power Voc gt 240 Vdc maximum power point V pp 240 to 550 Vdc Maximum harvest of solar energy On line MPPT window Vmpp 550 to 600 Vdc Does not allow maximum harvest of solar energy On line power derating Vmpp gt 6
74. tage frequency and reconnect delay values are programmed into the unit at the time of shipment from the factory With the utility s approval these settings can be adjusted in the field using the GTConfigLite software tool See Adjustable Voltage Frequency and Reconnection Settings on page A 3 4 If you have another GT Inverter to commission switch off the AC circuit for the inverter you have just commissioned and tested by switching off the breaker on the main panel You can then run the commissioning procedure and disconnect test on the next inverter Locating the Firmware Version Number 975 0320 01 01 The firmware version number for the protection processor is visible on a screen that appears when the unit starts up or is powered up after switching the DC AC disconnect switch to on The screen reads Flash 03 00 ROM 03 00 The number appearing after ROM is the firmware version number for the protection processor Monitoring the Inverter Chapter 3 contains information for understanding the LCD screens and the LED indicators Monitoring the Front Panel Display During startup During waiting period During operation When the inverter is offline or there is fault condition During startup the inverter s front panel LCD see Figure 5 1 shows the screens described in Table 5 1 Startup Screens on GT Inverter Front Panel Display on page 5 2 When the 305 second protection timer begins the
75. tatus Indicator Lights 975 0320 01 01 5 11 5 12 Maintenance and Troubleshooting Chapter 6 contains information about how to provide general maintenance for the Xantrex Grid Tie Solar Inverter It also provides information about troubleshooting the unit The topics in this chapter are organized as follows e Factors Affecting GT Inverter Performance on page 6 1 e Performing General Maintenance on page 6 3 e Replacing Parts on page 6 3 e Identifying Error Fault Conditions and Solutions on page 6 9 Factors Affecting GT Inverter Performance PV Array Factors PV array ratings Expected performance Temperature and reduced output This section describes several factors that will affect the amount of power that a properly installed and operating GT Inverter can produce PV arrays are rated at ideal factory conditions such as specified illumination 1000 W m spectrum of the light and specified temperature 25 C 77 F which seldom reflect real world installations This is called the STC Standard Test Condition rating and is the figure that appears on the PV module nameplate label Because of several unavoidable environmental factors you can expect your PV array to produce around 60 to 70 of its peak STC rated output for a properly designed and installed PV system on a typical day PV array temperature affects the output of the entire system As the temperature on the array surface heats up
76. that particular facility Out of Warranty Service If the warranty period for your Xantrex Grid Tie Solar Inverter has expired if the unit was damaged by misuse or incorrect installation if other conditions of the warranty have not been met or if no dated proof of purchase is available your product may be serviced or replaced for a flat fee To return your Xantrex Grid Tie Solar Inverter for out of warranty service contact Xantrex Customer Service for a Return Material Authorization RMA number and follow the other steps outlined in Return Procedure on page WA 3 Payment options such as credit card or money order will be explained by the Customer Service Representative In cases where the minimum flat fee does not apply as with incomplete units or units with excessive damage an additional fee will be charged If applicable you will be contacted by Customer Service once your unit has been received 975 0320 01 01 WA 3 Warranty and Return Information About Your System As soon as you open your Xantrex Grid Tie Solar Inverter package record the following information and be sure to keep your proof of purchase Product Number 864 0118 Your Model Number Serial Number Purchased From Purchase Date If you need to contact Customer Service please record the following details before calling This information will help our representatives give you better service Inverter Details Type of installation e g R
77. the next screen in the order shown in Table 5 6 These message screens are common to all GT Inverter systems no matter how many units are installed If you continue to tap the unit then the LCD will continue to cycle through all of the available offline mode screens Table 5 6 Offline Mode Screens for All GT Inverter Units Tap Display Description 1st time Inverter LCD back light turns on for better readability offline and default Offline Mode screen is displayed 2nd time System DU Power being produced by the system now Today 2 S50kWh Cumulative energy produced by the system today 3rd time System Lifetime Lifetime energy produced by the system 305kWh 4th time Time Online Total time that the system was online today in hh mm ss hours hh minutes mm and seconds ss In a multiple unit system with communications cables properly installed the system values displayed are for the entire system Time online is for the local inverter Multiple unit systems in offline mode display all of the message screens shown in Table 5 6 plus the additional screens shown in Table 5 7 These additional screens are displayed following the Time Online screen These screens are only displayed on multiple unit GT Inverter systems with communications cables installed If you continue to tap the unit then the LCD continues to cycle through all of the available offline mode screens 975 0320 01 01 975 0320 01 01 Front P
78. this and following tables are examples only If there is sufficient energy from the PV array the default screen is displayed continuously while the system is operating normally In a multiple unit system with communications cables properly connected the power and cumulative energy values displayed are for the entire system During low light conditions when the GT Inverter cannot produce any power the Normal Operation default screen flashes alternately every two seconds with the Insufficient Solar Energy screen see Table 5 10 Special Message Screens on page 5 10 Besides the default normal operation display more system information messages can be viewed To view more Normal Operation information e Tap the Xantrex logo near the LCD to advance the display to the next screen Normal operation screens shown in Table 5 3 are displayed in the order given as you tap successively on the unit They are common to all GT Inverter systems no matter how many units are installed If you continue to tap the unit then the LCD continues to cycle through all of the available normal operation screens Each screen is displayed for a maximum of 30 seconds If you do not tap again during that time period then the LCD backlight turns off and the display reverts to the default system message screen 975 0320 01 01 Front Panel Display Screens and What They M ean Table 5 3 Normal Operation Screens for All GT Inverter Units Tap Display
79. tility service panel For such installations complete the wiring and perform the commissioning procedure for each inverter one at a time For the commissioning procedure see Commissioning Multiple Inverters on page 4 3 WARNING Shock hazard and equipment failure Ensure each inverter is correctly connected to its own PV array s and that no wires are crossed If inverters share more than one PV array an input current difference of over 1 A between arrays can cause each inverter to fail the ground fault protection fuse will blow followed by short circuit failure This failure will also generate hazardous voltages at the DC AC disconnect switch on each unit For example connect PV1 positive and PV1 negative to inverter 1 and PV2 positive and PV2 negative to inverter 2 Do not connect PV1 positive and PV2 negative to inverter 1 and PV2 positive and PV1 negative to inverter 2 See Figure 3 6 GT Inverter 1 GT Inverter 2 Grounding not shown Figure 3 8 Improper Multiple Inverter Connections 975 0320 01 01 3 9 Wiring the Inverter Connecting the AC Wiring WARNING Shock hazard Before wiring the GT Inverter ensure the main breaker in the primary utility breaker box is switched OFF Switch this breaker ON only after all wiring is completed as instructed in the procedures The GT Inverter can be connected to a single bi directional
80. ucing the total output even though the other batteries are good However the output loss is not proportionate to shading The GT Inverter is designed to maximize its energy production in all of the above situations using its MPPT algorithm Other factors that contribute to system losses are e Dust or dirt on the array Fog or smog e Mismatched PV array modules with slight inconsistencies in performance from one module to another Inverter efficiency e Wire losses e Utility grid voltage For additional information and technical notes concerning PV array performance please visit our Web site at www xantrex com 975 0320 01 01 Performing General Maintenance Performing General Maintenance Follow these simple routines to ensure many years of service and optimal performance of your solar energy system 1 Keep the heat sink clear of dust and debris WARNING Shock and fire hazard Do not use a pressure washer to clean the GT Inverter or use other cleaning methods that could allow water to enter the unit 2 Clean the PV array during the cool part of the day whenever it is visibly dirty 3 Periodically inspect the system to make sure that all wiring and supports are securely in place 4 Ona sunny day near noon on March 21 and September 21 of each year review the output of the system and compare with previous year s reading Maintain a log of system performance readings so that you can recognize when system
81. y 96 2 CEC efficiency 95 5 Night time tare loss 1W GT5 Efficiency vs Output Power 98 00 97 00 ne er o ese 96 00 4 95 00 A a 240 2 94 00 e 300 5 480 amp 93 00 4 a 92 00 91 00 90 00 T 0 10 20 30 40 50 60 70 80 90 100 of Rated Output Power Figure A 2 Typical Efficiency Environmental Specifications Operating temperature range 25 to 65 C 13 to 149 F Storage temperature range 40 to 85 C 40 to 185 F Power derating See Figure A 1 on page A 3 Tolerable relative humidity limit Operating lt 95 non condensing Storage 100 condensing User Display Type alphanumeric liquid crystal display with backlight Size 2 lines by 16 characters 975 0320 01 01 Display Accuracy Instantaneous Power Mechanical Specifications 30 W 1 of reading Voltage 1 of rating 1 of reading Current 1 of rating 1 of reading System Lifetime energy Mechanical Specifications Outdoor enclosure 5 NEMA 3R Rainproof Inverter dimensions H x W x D 28 5 x 15 9 x 5 7 inches 72 4 x 40 3 x 14 5 cm Shipping dimensions H x W x D 34 1 x 20 4 x 10 3 inches 86 6 x 51 8 x 26 2 cm Inverter weight 58 lb 26 3 kg Shipping weight 76 lb 34 5 kg Input and output terminals AC and DC terminals accept wire sizes of 2 5 to 16 mm

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