GWL GridFree GF-SUN-2000G2 Installation And Operation Manual

With limit sensor and wifi plug connectors

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Installati on and operati on manual
GWL GridFree Inverter
With Limit Sensor and WIFI Plug connectors
GF-SUN-1000G2 / GF-SUN-1000G2H / GF-SUN-2000G2
(Generati on 2)
www.gwl.eu

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Summary of Contents for GWL GridFree GF-SUN-2000G2

  • Page 1 Installati on and operati on manual GWL GridFree Inverter With Limit Sensor and WIFI Plug connectors GF-SUN-1000G2 / GF-SUN-1000G2H / GF-SUN-2000G2 (Generati on 2) www.gwl.eu...
  • Page 2: Table Of Contents

    Inverter Display Instruction ........................23 Technical Data of SUN Series Grid Tie Power Inverter ................25 Weight and Dimension of SUN series Grid Tie Power Inverter ..............26 Troubleshooting ............................27 AC Output Current Waveform and PF Test Of 2000W Model ..............28 www.gwl.eu...
  • Page 3: G2 Sun Series Grid Tie Inverter Models

    WARNING This indicates a situation where failure to follow instructions maybe cause a safety hazard or equipment malfunction. Use extreme caution and follow instructions carefully. NOTE This indicates information particularly important for optimal system operation. Follow the instructions closely. www.gwl.eu...
  • Page 4: Safety Instructions

    AC power that the frequency and phase are the same as the grids. The voltage is a bit higher than the grids, then according to the current-controlled PWM, to control the www.gwl.eu...
  • Page 5 Fig 1. A Small Grid Tie Power System with Sunshine Grid Tie Inverter Fig 2. Multiple inverters can be connected in parallel to create a bigger system. Plug and play installation www.gwl.eu...
  • Page 6: Advantage Of The Sunshine Grid Tie Power System

    5. Low power consumption – Most of the parts in the small grid tie inverter are digital ICs and low power MCU, so the power consumption of it is low. Though the quantity of grid tie inverters is increased, this will not increase the power consumption much of the entire system. www.gwl.eu...
  • Page 7: Sunshine Grid Tie Inverter Installation

    Each of the detailed installation steps in the following sections is numerically referenced in the installation diagram below. WARNING DO NOT connect Sunshine Grid Tie Inverters to the utility grid or energize the AC circuit(s) until you have completed all of the installations. www.gwl.eu...
  • Page 8: Step1. Considering The Total Capacity Of The Grid Tie Power System That You Need

    AC system of your house, whether it can hold the fed power or not. If you want not to allow the system to feed extra power to the grid, you can use the inverter‘s limit function. STEP2. CHOOSING APPLICABLE SOLAR PANELS FOR SUNSHINE GRID TIE INVERTER. www.gwl.eu...
  • Page 9 Isc is the Short Circuit Current. Because these specifications are under STC, these specifications are also sensitive to the temperature of surroundings, so we should consider the variety of these specifications. Please check the curves of I-V and Temperature Dependence of Isc, Voc, Pmax. www.gwl.eu...
  • Page 10 Connecting solar panels with the same specifications in a single system is the best choice. 3. The total Vmp of solar panels should above the minimum point of the DC input range of the inverter. The connecting method principle is as same as item 2 above. www.gwl.eu...
  • Page 11: Step3. Selecting Accessory For Grid Tie Power System Installation

    AC cables will be supplied with inverters by our factory. We will supply different types of AC cables according to the standards of different countries. You should provide the information to the dealers where you will install the system. www.gwl.eu...
  • Page 12: Step4. Selecting Correct Model Of Sunshine Grid Tie Inverter

    21 kHz 0.032 0.8128 0.518 10.15 33.292 27 kHz 0.0285 0.7239 0.41 12.8 41.984 33 kHz 0.0254 0.64516 0.326 16.14 52.9392 0.92 42 kHz 0.0226 0.57404 0.258 20.36 66.7808 0.729 53 kHz 0.0201 0.51054 0.205 25.67 84.1976 0.577 68 kHz www.gwl.eu...
  • Page 13: Step5. Installing Solar Panels To A Suitable Place

    Ensure using a strong bracket to fix the solar panels to avoid the danger under high wind. www.gwl.eu...
  • Page 14: Step6. Installing Sunshine Grid Tie Inverter To A Suitable Place

    Cover the modules under sunshine just to avoid the sparkle when connecting the cables. www.gwl.eu...
  • Page 15 The Pmax specification of a solar panel is under STC, the actual power is variation according to the irradiation on the panel and the temperature surroundings. The real output power can‘t reach Pmax for most in the whole day. www.gwl.eu...
  • Page 16 With method 2, we also can get the specifications of the solar panels array. TPmax:245W×4 TVmp:29.4V×2 TImp:8.34A×2 TVoc:36.9V×2 TIsc:8.68A×2 From these specifications, we should use SUN-1000G-H. Because the DC input voltage range of this model is 45V to 90V, so the TVoc and TVmp are in the DC input voltage range. www.gwl.eu...
  • Page 17 1, the DC cables are thicker, so it is more expensive, and three pairs of connectors for parallel connecting plus three pairs of MC4 connectors should be used. But with method 2, the DC cables are thin, and just a pair of connectors for parallel connecting and a pair of MC4 connectors should be used. www.gwl.eu...
  • Page 18: Installing A Larger Capacity Of Grid Tie Power System

    For example, if you want to install a 12KW grid tie power system, there are many choices, you can stack six 2KW grid tie power systems, or twelve 1KW grid tie systems. Even you can mix different capacity grid tie power systems to gain large capacity system. www.gwl.eu...
  • Page 19 Don‘t Connect the DC input Terminals of one Sunshine Grid Tie Power Inverter to another‘s. If so, neither of the inverters can find the correct maximum power point(MPP), this will reduce the efficiency of the system. Shown in Fig.7. Solar Panel Array SUN-1000G2-H Fig.7 Error Connecting of DC Input Terminals SUN-1000G2-H www.gwl.eu...
  • Page 20: Installing Sunshine Grid Tie Power System To Three Phases Utility Grid

    1KW power. Connecting every system unit to a different phase can balance all grid tie power to three phases of the utility grid. Follow this way, you can install a more large grid tie power system to three phases, just separate the whole power system to three equal power system units. www.gwl.eu...
  • Page 21: The Layout Of Sunshine Grid Tie Power Inverter

    4 Limit Connection. Please check the user manual of the limit function. 5 Wifi Plug Connection. Please check the user manual of Wifi Plug. 6 AC socket. This socket will connect the inverter to the public grid via the AC cable. 7 Cooling fans. www.gwl.eu...
  • Page 22 4 Limit Connection. Please check the user manual of the limit function. 5 Wifi Plug Connection. Please check the user manual of Wifi Plug. 6 AC socket. This socket will connect the inverter to the public grid via the AC cable. 7 Cooling fans. www.gwl.eu...
  • Page 23: Inverter Display Instruction

    Current Mode,“ just use power to replace the current. SUN-1000G-SUN(22-65V)Ver5.1 Save Settings? NOTE Save the setting after you reconfigure the working mode or backlight setting. Battery Discharge Current Mode And Battery Discharge Power Mode are not developed yet. www.gwl.eu...
  • Page 24 Power View: In this interface, the display shows real time power, PV input voltage, inside temperature, date, and time. 9;4-2000--SUN(45-90)<KX5.1 2019 05 06 Clock And Date Setting: Set the clock and date on this page, save the setting before exit. 15 13 48 www.gwl.eu...
  • Page 25: Technical Data Of Sun Series Grid Tie Power Inverter

    Just for AC Output Operating Temperature Range -20°C 45°C Storage Temperature Range -40°C 65°C There are some common specifications of SUN Series Grid Tie Power Inverter shown in Table 3. Other electrical specifications of every model are listed in Table 1. www.gwl.eu...
  • Page 26: Weight And Dimension Of Sun Series Grid Tie Power Inverter

    Net Weight 4.0Kg 5.8Kg Gross Weight 5.0Kg 7.0Kg Dimension (Package) 430mm × 310mm × 155mm 540mm × 310mm × 155mm Outline Drawing of G2 SUN Series Grid Tie Power Inverter Fig. 11 SUN-1000G2-X Outline Drawing Fig. 12 SUN-2000G2-X Outline Drawing www.gwl.eu...
  • Page 27: Troubleshooting

    WARNING Never disconnect the DC wire connectors under load. Ensure that no current is flowing in the DC wires before disconnecting. An opaque covering may be used to cover the module before disconnecting the module. www.gwl.eu...
  • Page 28: Ac Output Current Waveform And Pf Test Of 2000W Model

    Tested 2000W model at nearly full load, output current waveform shows good pure sine wave in the oscilloscope, the PF value also shows a good result, 99.8% PF value. GWL a.s. Průmyslová 11, 102 00 Prague 10 Czech Republic, European Union...

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