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- GT 2.5-DE, GT 3.8-DE, GT 2.8-S
- Owner's Manual
Xantrex GT 2.5-DE, GT 3.8-DE, GT 2.8-S Owner's Manual
Summary of GT 2.5-DE, GT 3.8-DE, GT 2.8-S
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Www.Xantrex.Com xantrex grid tie solar inverter owner’s manual gt2.5-de gt3.8-de gt2.8-sp gt3.8-sp gt5.0-sp www.Xantrex.Com.Ua.
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Www.Xantrex.Com.Ua.
Page 3: Owner’S Manual
This manual for use by qualified installers only xantrex grid tie solar inverter owner’s manual www.Xantrex.Com.Ua.
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About schneider electric as a global specialist in energy management with operations in more than 100 countries, schneider electric offers integrated solutions across multiple market segments, including leadership positions in energy and infrastructure, industrial processes, building automation, and...
Page 5: About This Manual
975-0253-01-01 iii about this manual 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. Scope the manual provides safety guidelines, detailed planning and setup information. It ...
Page 6: Conventions Used
About this manual iv 975-0253-01-01 chapter 3, “wiring the inverter”, provides procedures for making dc and ac wiring connections for single and multiple inverter installations. This chapter also includes information about communications wiring and using gt-view monitoring software. Chapter 4, “star...
Page 7: Symbols Used
About this manual 975-0253-01-01 v symbols used related information you can find more information about xantrex technology inc. As well as its products and services at www.Xantrex.Com pc personal computer pv photovoltaic stc standard test condition vac volts ac vdc volts dc v mp voltage at maximum p...
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Vi www.Xantrex.Com.Ua.
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975-0253-01-01 vii 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. 1. Before installing and using the gt inverter, read all instructions and cautio...
Page 10: Regulatory Compliance
Safety viii 975-0253-01-01 regulatory compliance the gt inverter is ce marked for the following directives and standards: • low voltage directive 73/23/eec, per en50178 “electronic equipment for use in power installations”. • emc directive 204/108/ec, per: • en61000-6-3 “emission standard for reside...
Page 11: Contents
975-0253-01-01 ix important safety instructions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -vii regulatory compliance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - viii pv ground fault detection - - - - - ...
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Contents x 975-0253-01-01 communications wiring for multiple inverters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -3–10 xanbus network technology - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -3–11 guidelines for routing the network cables...
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Contents 975-0253-01-01 xi warranty and return information - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - wa–1 index - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ix–1 www.Xantrex.Com.Ua.
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Contents xii 975-0253-01-01 www.Xantrex.Com.Ua.
Page 15: Figures
975-0253-01-01 xiii figure 1-1 basic system overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2 figure 1-2 main features of the gt inverter (gt2.5-de/2.8-sp models shown) - - - - - - - - - - - - - 1–4 figure 2-1 installation options overview- - - - - ...
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Xiv www.Xantrex.Com.Ua.
Page 17: Tables
975-0253-01-01 xv table 2-1 mppt operational window - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–6 table 2-2 mppt operational window (gt5.0-sp)- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–6 table 2-3 inverter clearance requirements - - - ...
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Page 19: Introduction
1 introduction chapter 1, “introduction”, contains information about the features and functions of the xantrex grid tie solar inverter. Www.Xantrex.Com.Ua.
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Introduction 1–2 975-0253-01-01 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-grade electricity that can be used by the home or sold to the local power company. Installing the ...
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About the xantrex grid tie solar inverter 975-0253-01-01 1–3 pv compatibility 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 195 to 550 vdc input voltage maximum power point range (...
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Introduction 1–4 975-0253-01-01 figure 1-2 main features of the gt inverter (gt2.5-de/2.8-sp models shown) led indicator lights mounting slots (five) heat sink lcd ac connection communication ports cover dc quick-connects www.Xantrex.Com.Ua.
Page 23: Installation
2 installation chapter 2, “installation”, provides information about planning for and installing the gt inverter. It contains information to help you plan wire routes, ensure your pv array provides necessary power, and find a suitable location for installation. The topics in this chapter are organiz...
Page 24: Installation Options
Installation 2–2 975-0253-01-01 installation options the gt inverter may be installed as a single inverter for a single pv array of up to two pv strings (up to three pv strings for the gt5.0-sp model), or in a multiple inverter configuration for multiple pv arrays (see figure 2-1 for diagrams of bot...
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Planning the installation 975-0253-01-01 2–3 figure 2-1 installation options overview grid tie solar inverter 0 0 0 0 0 0 0 8 k w h 230v 50 hz 10 (60 ) a grid tie solar inverter 0 0 0 0 0 0 0 8 k w h 230v 50 hz 10 (60 ) a grid tie solar inverter photovoltaic (pv) panels— pv array harvested solar ene...
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Installation 2–4 975-0253-01-01 inverter location inverter failure due to improper installation will void the inverter warranty. Consider the following when determining where to install the inverter. Warning: burn hazard do not install in a location where people can accidentally come into contact wi...
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Planning the installation 975-0253-01-01 2–5 pv array requirements general recommendations it is important that the pv array is installed correctly to the manufacturer’s specifications and to local code requirements. Equipment and installation recommendations equipment recommendations • all electric...
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Installation 2–6 975-0253-01-01 mppt requirements 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. Eff...
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Planning the installation 975-0253-01-01 2–7 guidelines for matching pv array size to xantrex grid tie solar inverter input for determining the number of panels required in the pv string (panels connected in series), you must ensure that the following three requirements are met: 1. To avoid damage t...
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Installation 2–8 975-0253-01-01 dc grounding the gt inverter is designed to work with ungrounded pv systems (neither the pv+ nor the pv– are connected to earth). The array frames and other pv equipment must have equipment grounding connections as required by applicable codes. Lightning protection re...
Page 31: Mounting The Inverter
Mounting the inverter 975-0253-01-01 2–9 wiring wire size and length will be determined by the location of each component and their relative distance to each other. Wire sizes may also be affected by whether or not conduit is used, in accordance with wire size tables in applicable codes. Ac circuit ...
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Installation 2–10 975-0253-01-01 this chapter describes the first step: mounting the inverter and installing accessories. Mounting steps instructions for mounting the gt inverter are described in the following sections: • “installing the mounting bracket” on page 2–11 • “mounting the inverter on the...
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Mounting the inverter 975-0253-01-01 2–11 dimensions the dimensions of the inverter are shown in figure 2-4. Installing the mounting bracket the mounting bracket for the gt inverter allows the unit to be easily mounted and removed for servicing. It has one hook that matches a corresponding hook on t...
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Installation 2–12 975-0253-01-01 clearance requirements for optimal and safe operation, ensure there is adequate clearance around the inverter. The minimum clearance recommendations in table 2-3 assume a vertical mounting. If clearances are less than these recommendations are used, additional power ...
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Mounting the inverter 975-0253-01-01 2–13 surfaces for mounting the gt inverter weighs approximately 20 kg. The supporting surface must be strong enough to handle 75 kg. If the supporting surface is not strong enough to handle that weight, then supporting material such as a sheet of plywood can be u...
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Installation 2–14 975-0253-01-01 mounting on poles or rails to mount the unit using poles: 1. Ensure that poles or rails are securely assembled in place. If using horizontal rails, two rails are required: one for the mounting bracket and another for securing the bottom edge of the inverter (see figu...
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Mounting the inverter 975-0253-01-01 2–15 mounting on wallboard, brick or concrete to mount the gt inverter to wallboard, brick, or concrete: 1. Locate the area where the gt inverter is to be installed. 2. Install backing support material if required. 3. Using a level, place the mounting bracket aga...
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Installation 2–16 975-0253-01-01 mounting the inverter on the bracket before mounting the inverter, remove the communication ports cover (if it has been attached to the unit). With the cover removed, you can access all the mounting slots along the bottom flange. Ensure the communication ports cover ...
Page 39: Wiring The Inverter
3 wiring the inverter chapter 3, “wiring the inverter”, provides procedures for making dc and ac wiring connections for single and multiple inverter installations. This chapter also includes information about communications wiring and using gt-view monitoring software. The topics in this chapter are...
Page 40: Connecting The Dc Wiring
Wiring the inverter 3–2 975-0253-01-01 connecting the dc wiring the gt inverter is equipped with four pv quick connects (two positive, two negative) for connecting up to two pv strings. The gt5.0-sp model has six pv quick connects for connecting up to three pv strings. Figure 3-1 pv quick connect lo...
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Connecting the dc wiring 975-0253-01-01 3–3 equipment needed • conduit for wire runs and appropriate fittings/bushings (outdoor rated if the inverter is installed outdoors) • wire cutters/wire crimpers/wire strippers • digital voltmeter • frequency counter (optional, for troubleshooting) • female an...
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Wiring the inverter 3–4 975-0253-01-01 when installing the dc fuses, the two positive pv wires must be relocated from their factory-installed connection points to the connection points in line with the dc fuse clips. See figure 3-2. The dc interconnect board is inside the gt inverter wiring compartm...
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Connecting the dc wiring 975-0253-01-01 3–5 3. Connect the positive (+) wire from the #1 pv string to a gt inverter pv positive (+) quick connect. 4. Connect the negative (–) wire from the #1 pv string to a gt inverter pv negative (–) quick connect. 5. If necessary, repeat for the #2 or (for gt5.0-s...
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Wiring the inverter 3–6 975-0253-01-01 connecting multiple inverters for installations with multiple inverters, a separate pv array is required for each gt inverter unit. For gt-de models, the output of each gt inverter feeds a separate single-pole (in the active line) or double-pole circuit breaker...
Page 45: Connecting The Ac Wiring
Connecting the ac wiring 975-0253-01-01 3–7 connecting the ac wiring the gt inverter can be connected to a single bi-directional 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...
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Wiring the inverter 3–8 975-0253-01-01 5. On the female terminal, connect the protective earth wire to the terminal marked with the symbol. See figure 3-6. 6. Connect the neutral conductor to the terminal marked with 1. 7. Connect the active conductor to the terminal marked with 2. Terminal 3 is not...
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Connecting the ac wiring 975-0253-01-01 3–9 making ac connections for gt5.0-sp model ac wiring to the gt5.0-sp model is connected directly to the ac terminal block, and then secured with the supplied cable gland. The gt inverter must be connected to the utility with three wires—two lines (one active...
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Wiring the inverter 3–10 975-0253-01-01 3. Loosen, but do not remove, the ac cable gland cap nut. 4. Pass the three wires from the utility panel through the cable gland and into the wiring compartment. 5. Loosen the appropriate terminals and insert the wires into the terminals. A) connect the protec...
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Communications wiring for multiple inverters 975-0253-01-01 3–11 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 dis...
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Wiring the inverter 3–12 975-0253-01-01 table 3-2 provides information on maximum xanbus network length. Network components terminators network terminators (figure 3-9) are required at both ends of the network to ensure the communication signal quality on the network. Network terminators are inserte...
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Communications wiring for multiple inverters 975-0253-01-01 3–13 forces the remaining inverters offline. This condition remains until grid parameters for all inverters are within operating specifications. See figure 3-10 for the location of these ports. Network cables the network uses category 5 (ca...
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Wiring the inverter 3–14 975-0253-01-01 guidelines for routing the network cables to ensure maximum performance of your network, follow these guidelines when routing the network cables. Route the cables before installing xanbus-enabled devices. • route the cables away from sharp edges that might dam...
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Communications wiring for multiple inverters 975-0253-01-01 3–15 6. Connect the network cable to an empty rj45 port in inverter #2. 7. For more than two inverters, continue connecting cable as described above. 8. If not already installed, insert male network terminators into the empty rj45 ports in ...
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Wiring the inverter 3–16 975-0253-01-01 if the canbus analyzer indicates your network is not operating properly, check the following and then re-test the network. • make sure the total xanbus network length has not been exceeded. See table 3-2, “total xanbus network length” on page 3–12. • make sure...
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Communications wiring for monitoring a single inverter 975-0253-01-01 3–17 gt-view displays operational data such as power output in ac watts, lifetime energy produced, and inverter temperature. Data is updated every two seconds (default setting). Note: in multiple installations, gt-view monitors on...
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Wiring the inverter 3–18 975-0253-01-01 www.Xantrex.Com.Ua.
Page 57: Starting The Inverter
4 starting the inverter chapter 4, “starting the inverter”, 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: • “commissioning procedure” on page 4–2 • “disconnect test” on page 4–3. Www.Xant...
Page 58: Commissioning Procedure
Starting the inverter 4–2 975-0253-01-01 commissioning procedure to ensure that each gt inverter is wired correctly, each inverter should be wired individually using the wiring procedures in chapter 3, and turned on using this commissioning procedure. Once a single inverter has been commissioned, it...
Page 59: Disconnect Test
Disconnect test 975-0253-01-01 4–3 to monitor the startup sequence on the front panel lcd, check the gt inverter lcd. The startup screens (see table 5-1 on page 5–3) should appear for five seconds each, and then the “reconnecting in sss seconds” special screen (see table 5-11 on page 5–10) will appe...
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4–4 www.Xantrex.Com.Ua.
Page 61: Monitoring The Inverter
5 monitoring the inverter chapter 5, “monitoring the inverter”, contains information for understanding the lcd screens and the led indicators. The topics in this chapter are organized as follows: • “monitoring the front panel display” on page 5–2 • “front panel display screens and what they mean” on...
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Monitoring the inverter 5–2 975-0253-01-01 monitoring the front panel display during startup during startup, the inverter’s front panel liquid crystal display (lcd, see figure 5-1) shows the first three screens described in table 5-1, “startup screens on gt inverter front panel display” on page 5–3....
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Front panel display screens and what they mean 975-0253-01-01 5–3 in addition there are special message screens that may appear in any operational mode. All of these message screens are described in more detail in the following tables. Startup mode during startup, the gt inverter displays several me...
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Monitoring the inverter 5–4 975-0253-01-01 vh= 253v clr t 3 seconds vh: phase-to-phase (rms) high threshold voltage 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.† vl= 196v clr t 3 se...
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Front panel display screens and what they mean 975-0253-01-01 5–5 the protection timer begins its countdown during startup and the “reconnecting in sss seconds” screen appears until the timer countdown is complete. Normal operation mode the lcd on the gt inverter is refreshed every two seconds, so a...
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Monitoring the inverter 5–6 975-0253-01-01 additional messages for multiple unit systems only in addition, to the normal system message screens, additional screens specific to each gt inverter unit can be displayed when the unit is connected with communications wiring to other gt inverters. These sc...
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Front panel display screens and what they mean 975-0253-01-01 5–7 offline mode offline default display at night and when no power is being produced by the pv array (offline mode), the gt inverter displays the screen shown in table 5-6. Offline messages for all systems additional message screens can ...
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Monitoring the inverter 5–8 975-0253-01-01 additional offline messages for multiple unit systems multiple unit systems in offline mode display all of the message screens shown in table 5-7, plus the additional screens shown in table 5-8. These additional screens are displayed following the “time onl...
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Front panel display screens and what they mean 975-0253-01-01 5–9 frequency fault 47.0hz the actual frequency is over or under the allowable range, as specified in “output” on page a–2. This is a utility fault; it will clear itself when the frequency comes within the specified range.† over temp faul...
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Monitoring the inverter 5–10 975-0253-01-01 additional fault messages for all systems additional message screens can be viewed in fault mode by tapping the front panel. Each additional tap displays the next screen in the order shown in table 5-10. Special screens special message screens are displaye...
Page 71: Status Indicator Lights
Status indicator lights 975-0253-01-01 5–11 custom screens two custom screens are available. The inverter does not display them unless they are configured using using gt-view (see page 3–16). If configured, the custom screens display as the fourth and fifth screens during the startup sequence. They ...
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Monitoring the inverter 5–12 975-0253-01-01 figure 5-2 location of status indicator lights green led red led www.Xantrex.Com.Ua.
Page 73: Maintenance and
6 maintenance and troubleshooting chapter 6, “maintenance and troubleshooting”, 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: • “...
Page 74
Maintenance and troubleshooting 6–2 975-0253-01-01 factors affecting gt inverter performance this section describes several factors that will affect the amount of power that a properly installed and operating gt inverter can produce. Pv array factors pv array ratings pv arrays are rated under standa...
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Performing general maintenance 975-0253-01-01 6–3 other factors other factors that contribute to system losses are: • dust or dirt on the array • fog or smog • mismatched pv array modules, with slight inconsistencies in performance from one module to another. • inverter efficiency • wire losses for ...
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Maintenance and troubleshooting 6–4 975-0253-01-01 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. Most of these fault conditio...
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Identifying error/fault conditions and solutions 975-0253-01-01 6–5 only the inverter red led is illuminated and the display reads ground fault . Ground fault condition detected on the pv array. The pv system should be checked by a qualified electrician and repaired. See table 5-9 on page 5–8. To re...
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Maintenance and troubleshooting 6–6 975-0253-01-01 www.Xantrex.Com.Ua.
Page 79: Specifications
A specifications appendix a, “specifications”, contains information about the electrical and environmental specifications of the xantrex grid tie solar inverter. The topics in this appendix are organized as follows: • “electrical specifications” on page a–2 • “environmental specifications” on page a...
Page 80: Electrical Specifications
Specifications a–2 975-0253-01-01 electrical specifications input output islanding protection gt2.5-de gt2.8-sp gt3.8-de/sp gt5.0-sp input voltage, maximum power point range 195 to 550 vdc 240–550 vdc absolute maximum array open circuit voltage 600 vdc* *the gt5.0-sp will not qualify pv input voltag...
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Electrical specifications 975-0253-01-01 a–3 adjustable disconnect settings (sp models only) voltage and frequency disconnect and islanding protection are essential safety features that ensure no person working on the grid is harmed by a distributed energy source. Default software settings are progr...
Page 82
Specifications a–4 975-0253-01-01 spain 230v (sp-230) default utility disconnect settings and adjustment ranges (gt2.8-sp and gt3.8-sp) output power versus ambient temperature once the heat sink on the inverter reaches a temperature limit, the gt inverter reduces its energy output to ensure maximum ...
Page 83: Environmental Specifications
Environmental specifications 975-0253-01-01 a–5 efficiency environmental specifications user display figure a-2 output power vs. Ambient temperature (gt5.0-sp) gt2.5-de gt3.8-de gt2.8-sp gt3.8-sp gt5.0-sp maximum peak efficiency 95% 95.3% 95% 95.3% 96% euro efficiency 94% 94.5% 94% 94.5% 95.2% night...
Page 84: Mechanical Specifications
A–6 display accuracy mechanical specifications instantaneous power +/- (30 w + 1% of reading) voltage +/- (1% of rating + 1% of reading) current +/- (1% of rating + 1% of reading) system lifetime energy +/- 5% gt2.5-de gt3.8-de gt2.8-sp gt3.8-sp gt5.0-sp outdoor enclosure ip54, rainproof inverter di...
Page 85: Warranty
975-0253-01-01 wa–1 warranty and return information warranty what does this warranty cover and how long does it last? 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...
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Warranty and return wa–2 975-0253-01-01 what does this warranty not cover? Claims are limited to repair and replacement, or if in xantrex's discretion that is not possible, reimbursement up to the purchase price paid for the product. Xantrex will be liable to you only for direct damages suffered by ...
Page 87
Warranty and return 975-0253-01-01 wa–3 return material authorization policy for those products that are not being repaired in the field and are being returned to xantrex, before returning a product directly to xantrex you must obtain a return material authorization (rma) number and the correct fact...
Page 88
Warranty and return wa–4 975-0253-01-01 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. If you need to contact customer service, please record the following details before cal...
Page 89: Index
A abbreviations and symbols iv ac circuit breaker requirements 2–9 ac grounding requirements 2–7 ac output voltage ratings a–2 ac wiring instructions 3–7 adjustable disconnect settings a–3 c communication between multiple inverters 3–10 communications cabling 3–13 installing for multiple inverters 3...
Page 90
Index ix–2 975-0253-01-01 preparation 2–11 single inverter 2–16 surfaces for 2–13 using poles or rails 2–14 mppt operational window 2–6 technology 1–3 multiple inverters communication between 3–10 communications wiring 3–14 configuration 2–2 installation 3–6 messages in normal operation 5–6 messages...
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Xantrex technology inc. +34 902 10 18 13 telephone +34 93 305 50 26 fax gtsupport.Europe@xantrex.Com www.Xantrex.Com 975-0253-01-01 printed in china www.Xantrex.Com.Ua.