Sungrow SG10KTL User Manual

Sungrow SG10KTL User Manual

Pv grid-connected inverter
Table of Contents

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User Manual
SG10KTL/SG12KTL/
SG15KTL/SG20KTL
 
PV Grid-Connected Inverter
SG10_12_15_20KTLV41-UEN-Ver30-201412 Version: 3.0

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Summary of Contents for Sungrow SG10KTL

  • Page 1   User Manual SG10KTL/SG12KTL/ SG15KTL/SG20KTL   PV Grid-Connected Inverter SG10_12_15_20KTLV41-UEN-Ver30-201412 Version: 3.0...
  • Page 3: About This Manual

    About This Manual This manual is for the inverters SG10KTL, SG12KTL, SG15KTL and SG20KTL. These inverters are grid-connected, transformer-less, robust and of high conversion efficiency. The device will bring you profit from PV power system. The manual contains information about the inverter, which will provide you guidelines to connect the inverter into the PV power system and how to operate the inverter.
  • Page 4 Symbols Explanation Important instructions contained in this manual should be followed during installation, operation and maintenance of the inverter. And they will be highlighted by the following symbols. DANGER indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.
  • Page 5 Symbols on the Inverter Body This symbol indicates that you should wait at least 10 minutes after disconnecting the inverter from the utility grid and from the PV input before touching any inner live parts. Hot surface! In order to reduce the risk of burns, do not touch the hot surface when the device is running.
  • Page 6: Table Of Contents

    Contents 1  Safety Instructions ..............1  2  Product Introduction ............... 6      Intended Usage ...................... 6     Product Description ....................7   2.2.1 Product Appearance ....................7   2.2.2 Dimensions and Weight of Inverter ..............8   2.2.3 LCD Display Panel ...................... 8  ...
  • Page 7   Maintenance ......................58   9.2.1 Routine Maintenance ................... 58   9.2.2 Maintenance Instruction ..................58     Contact Sungrow Service ................. 61 10  Operation of LCD Display Panel ..........62      10.1 Description of Button Function ..............62...
  • Page 8     10.2 Inverter Menu Structure ................... 63     10.3 Main Screen ......................64     10.4 Adjust Contrast ....................65     10.5 Detailed Running Information ............... 66     10.6 History Records ....................67   10.6.1 Running Information Records ................. 67  ...
  • Page 9: Safety Instructions

    1 Safety Instructions IMPORTANT SAFETY INSTRUCTIONS The SG10KTL, SG12KTL, SG15KTL and SG20KTL have been designed and tested strictly according to the international safety regulations. As electrical and electronic equipment, safety instructions related to them must be complied with during installation, commissioning, operation and maintenance. Incorrect operation or...
  • Page 10 1 Safety Instructions User Manual Before Installation There is a risk of injury due to improperly handling the device! Always follow the instructions contained in the manual when moving and positioning the inverter. The weight of the equipment can cause injuries, serious wounds, or bruise if improperly handled.
  • Page 11 User Manual 1 Safety Instructions Lethal voltage exists! PV arrays will produce electrical energy when exposed to sunlight and thus can create an electrical shock hazard. Wiring of the PV arrays should only be performed by qualified personnel. All cables must be firmly attached, undamaged, properly insulated and adequately dimensioned.
  • Page 12 1 Safety Instructions User Manual Maintenance and Service There is a risk of inverter damage or personnel injury due to incorrect service work! Always keep in mind that the inverter is power supplied by dual power source: PV arrays and utility grid. Before any service work, you should obey the following procedures.
  • Page 13 User Manual 1 Safety Instructions There is a risk of inverter damage if it is improperly serviced. Use only accessories and spare parts approved by the inverter manufacturer. Never modify the inverter or other components of the inverter. Otherwise it will cause loss of any or all warranty rights. There is a risk of inverter damage due to electrostatic discharge! The printed circuit boards contain components sensitive to electrostatic discharge.
  • Page 14: Product Introduction

    2 Product Introduction 2.1 Intended Usage SG10KTL, SG12KTL, SG15KTL and SG20KTL (They will be referred to as inverter hereinafter unless otherwise specified), which are 3-phase string inverters without transformer, are crucial units between the PV strings and utility grid in the small-scaled PV power system.
  • Page 15: Product Description

    User Manual 2 Product Introduction Any other or additional usage is not permitted except the intended usage. Inverter may only accept PV modules with Protection Class II as its input. Inverter may only be connected to utility grid via distribution board. Local loads (home appliance, lights, motor loads, etc.) cannot be connected between inverter and AC circuit breaker on the distribution board.
  • Page 16: Dimensions And Weight Of Inverter

    Type W(mm) H(mm) D(mm) Net weight(kg) SG10KTL/SG12KTL/SG15KTL SG20KTL 2.2.3 LCD Display Panel As a human-computer interaction interface, LCD display panel comprises LED indicators, buttons and LCD display screen on the front panel of the inverter LEDs indicate the working status of the inverter...
  • Page 17: Dc Switch

    User Manual 2 Product Introduction Tab. 2-1 Description of LED Indicator LED State Description “RUN”: on Inverter is feeding AC power to the utility grid. “FAULT”: off “RUN”: off A malfunction happens; “FAULT”: on or protection function triggers. “RUN”: off Inverter is not energized;...
  • Page 18: Technical Description

    2 Product Introduction User Manual 2.3 Technical Description 2.3.1 Principle Description The principle design of transformer-less and grid-connected inverter is illustrated in Fig. 2-5. Six PV strings input voltage is transmitted to DC BUS via Boost circuit. SG10/12/15/20KTL inverters are equipped with MPPTs for two DC inputs to ensure that the maximum power can be utilized even in different PV installation conditions.
  • Page 19: Functions Description

    User Manual 2 Product Introduction 2.3.2 Functions Description Inverter functions can be grouped as the following: Conversion function Inverter converts the direct current power into alternating current power, which conforms to the grid requirement of its installation country. Data storage and display Inverter stores essential data including running information and fault records, and displays them on integrated LCD display.
  • Page 20: Derating

    When the PV input power exceeds the defined TotalInputPowerMax, see Tab. 2-2, the inverter will reduce the power evenly to the maximum limit and keep the output power at nominal value. Tab. 2-2 Maximum Input Power Type SG10KTL SG12KTL SG15KTL SG20KTL TotalInputPowerMax...
  • Page 21 User Manual 2 Product Introduction Grid Under-voltage Derating Once the grid voltage is in the defined range of Vgrid (Vmin…215V), the inverter will decrease the power output. × = Pn (Vgrid / 230V) [Vmin…215V] Fig. 2-7 Grid Under-voltage Derating Over-temperature Derating Power modules over-temperature may result from high ambient temperature, poor ventilation or fault of fans.
  • Page 22: Installation Flow

    3 Installation Flow Fig. 3-1 shows the installation flow of inverter for installer. Please follow these procedures. Fig. 3-1 Installation Flow Chart      ...
  • Page 23 User Manual 3 Installation Flow Tab. 3-1 Description of Installation Flow Reference Order Description Chapter Unpacking and inspection Section 4.1 Read this manual, especially the section on “safety Chapter 1 instruction” Store the inverter unit if not install immediately Section 4.4 Choose the best installation site Section 5.1 Moving the inverter to installation site...
  • Page 24: Unpacking And Storage

    4 Unpacking and Storage 4.1 Unpacking and Inspection The unit is thoroughly tested and strictly inspected before delivery. Damage may still occur during shipping. Check the packing for any visible damage upon receiving. Check the inner contents for damage after unpacking. Check the completeness of delivery contents according to the inner packing list.
  • Page 25: Identifying Inverter

    Sungrow. Fig. 4-2 Nameplate of Inverter *Image shown here is indicative only. Actual product you receive may differ.
  • Page 26: Delivery Contents

    4 Unpacking and Storage User Manual 4.3 Delivery Contents Fig. 4-3 Delivery Contents Item Description Inverter unit Backplate for mounting inverter onto the wall Expansion bolts for fastening backplate onto concrete wall Fastener set for installing backplate on metal frame PV input connectors, including positive and negative connectors AC connector Waterproof communication connector...
  • Page 27: Storage Of Inverter

    If there is more than one inverter to be stored, the maximum layers for original carton is three. After long term storage, local installer or service dept. of Sungrow should perform a comprehensive test before connecting the inverter into PV power system.
  • Page 28: Installing Inverter Onto Wall

    5 Installing Inverter onto Wall Installation shall comply with local regulations and technical rules. Installation shall comply with the relevant instructions of AS 4777.1. 5.1 Selecting Installation Location Selecting an optimal installation location for the inverter is decisive for its operating safety as well as its expected efficiency and service life.
  • Page 29 User Manual 5 Installing Inverter onto Wall Install the unit at eye level for easily buttons operation and display read. It is suggested that the inverter be installed vertically with upside up for good heat dissipation. Never install the inverter horizontally, nor with a forward tilt nor with a backward tilt nor even with upside down.
  • Page 30 5 Installing Inverter onto Wall User Manual Avoid exposing inverter to direct sunlight or rain or snow to extend its service life despite the IP65 protection degree. Exposure to the sun may cause additional internal heating which will cause power reducing. Shaded site of the building is preferred.
  • Page 31: Moving Inverter To Installation Site

    User Manual 5 Installing Inverter onto Wall Do not install the inverter in living area. Noise may be produced during inverter running, which may affect your daily life. 5.2 Moving Inverter to Installation Site If the inverter is to be installed, remove the unit from the packaging and move it to the selected installation site.
  • Page 32: Installing The Inverter On Concrete Wall

    5 Installing Inverter onto Wall User Manual Fig. 5-2 Dimensions of Expansion Bolt Set for Concrete Wall (unit: mm) Fig. 5-3 Dimensions of Fastener Set for Metal Frame(unit: mm) 5.3.1 Installing the Inverter on Concrete Wall Remove backplate and fasteners from the packaging. Step 1 Place the backplate onto the chosen concrete wall and adjust it until it is in a Step 2...
  • Page 33: Installing The Inverter On Metal Frame

    User Manual 5 Installing Inverter onto Wall Lift up the inverter above the backplate with the help of others and then Step 6 slide down, making sure that the two mounting ears on the back of the inverter and counterparts of the backplate engage perfectly, as shown in Fig. 5-5.
  • Page 34 5 Installing Inverter onto Wall User Manual Description Remark Hexagonal socket nut Spring washer ------ Washer ------ Hexagonal bolt M10*45 Metallic wall ------ Backplate ------ Fig. 5-6 Fasten Backplate against Metal Frame with Bolts and Nuts Lift up the inverter above the backplate with the help of others and then Step 6 slide down to make sure that the two mounting ears on the back of the inverter fit perfectly with the backplate, as shown in Fig.
  • Page 35: Electrical Connection

    6.1 Terminals Description All electrical terminals are shown in Fig. 6-1. Sungrow provides corresponding plug connectors in the scope of delivery, as a result of convenient and safe connection without opening the lid.
  • Page 36: Simplified Electrical Connection Diagram

    User Manual Fig. 6-1 Terminals Description Item Description AC: AC terminals SG10KTL/SG12KTL/SG15KTL: Amphenol C16_L; SG20KTL: Wieland RST50I5 RS485 IN / RS485 OUT: RS485communication terminals, RJ45 DC1/DC2: DC terminals, MC4 PV-KST4/6II-UR, PV-KBT4/6II-UR Integrated DC switch Second Protective Earth Terminals 6.2 Simplified Electrical Connection Diagram Connecting inverter to the existing PV system includes connecting inverter to local grid and connecting inverter to PV arrays.
  • Page 37 The maximum open-circuit voltage of each PV string is PV arrays 1000V. SolarInfo Logger It can be ordered from Sungrow. User equips this device to monitor inverter. Used as a protective device during electrical connection. AC circuit breaker User equips this device according to the maximum output voltage and current.
  • Page 38: Connecting Inverter To Ac Grid

    Requirements of Multiple Inverters in Parallel Grid Connection If several inverters are operated in parallel connection to grid, different requirements should be obeyed (See technical information “System Impedance and Stability Recommendation for Multiple String Inverters in Large PV Power Plant” in the download area of Sungrow website).
  • Page 39 1% of nominal inverter rating. Outer cable diameters Conductor Cross Section (mm (mm) Type Recomme Recommended Range nded Range Value Value SG10KTL 4…8.37 11…20* (11AWG…8AWG) (11AWG) SG12KTL 4…8.37 SG15KTL 6.0 (9AWG) 11…20* (11AWG…8AWG) 6…10 8.37 SG20KTL 15…25 (10AWG…7AWG)
  • Page 40: Connecting Inverter To Ac Grid

    “Appendix”. Consult local grid company for solution, if otherwise. Connect the inverter exclusively to TN or TT mains as the following procedures: Connecting SG10KTL/SG12KTL/SG15KTL to AC Grid Unscrew the water-proof terminal in the Step 1 following direction.
  • Page 41 User Manual 6 Electrical Connection − Plug AC connector to corresponding AC terminals. − Screw AC cables except the “PE” cable to the AC circuit breaker. Connect AC circuit breaker to utility grid. Step 10 Make sure all AC cables are firmly installed. Step 11 Connecting SG20KTL to AC Grid Insert AC cables into cable gland and...
  • Page 42 6 Electrical Connection User Manual Latch the contact carrier. Step 4 Fasten the contact carrier. Step 5 Tighten the gland using the torque of 12 Step 6 N m. Disconnect AC circuit breaker and Step 7 prevent it from reconnecting accidently. Plug AC connector into corresponding Step 8 AC terminal underneath the inverter.
  • Page 43: Connecting Inverter To Pv Arrays

    Setting”). You may see technical information “PV Configuration Mode Selection Guide” in the Sungrow website to decide the PV configuration mode for inverter The mode in which actual PV strings are connected and the mode that is set in the inverter LCD display menu should be identical. Otherwise inverter will...
  • Page 44 Prior to connecting inverter to PV inputs, the following specifications should be met: Total Power Open-circuit Short-circuit Type Power Limit Limit for Each Voltage Limit Current Limit for Inverter Input for Each Input for Each Input SG10KTL 10800W 5400W 1000V SG12KTL 12800W 6400W 1000V SG15KTL 15800W 7900W 1000V SG20KTL 21000W 10500W...
  • Page 45 Prior to connecting inverter to PV inputs, the following specifications should be met: Open-circuit Short-circuit Total DC Power Type Voltage Limit for Current Limit for Limit for Inverter Each Input Total Input SG10KTL 10800W 1000V SG12KTL 12800W 1000V SG15KTL 15800W 1000V SG20KTL...
  • Page 46: Assembling Dc Cable To Connector

    6 Electrical Connection User Manual 6.4.2 Assembling DC Cable to Connector DC cables from PV strings should be equipped with DC connectors. Pairs of DC connectors are supplied in the scope of delivery. To maintain IP65 weatherproof function of inverter, only the supplied DC connectors or the connectors of the same protection class can be used.
  • Page 47: Wiring Procedures

    For parallel-mode with 5 or 6 strings you may need the T-connector solution with MC4-type T-connectors for connection. Order the MC4 T-connectors from Sungrow or connector manufacture. 6.4.3 Wiring Procedures Make sure that all the DC cables to the inverter are not live before you start the electrical work.
  • Page 48 6 Electrical Connection User Manual Check the positive and negative polarity of the PV cells. After confirmation, you can insert the DC connectors into the input terminals on the bottom of the inverter. For the same MPPT, reverse connection of a single string is prohibited. A permanent failure of the system or inverter may follow if otherwise.
  • Page 49 User Manual 6 Electrical Connection Connect other PV strings following the same procedures if necessary. Step 4 Unused DC terminals should be sealed. PV Connection of Parallel Mode Connect the inverter to PV arrays as the following procedures: Manually rotate the DC switch at the Step 1 bottom to the “OFF”...
  • Page 50: Grounding The Inverter

    6 Electrical Connection User Manual Short connected the two input areas as Step 2 the following indications before any PV string connection. Check the connection cable of PV string for the correct polarity. Step 3 Plug the positive and negative DC connectors into corresponding terminals Step 4 until it click-locks into place.
  • Page 51: Second Protective Earth Terminals

    User Manual 6 Electrical Connection Fig. 6-3 Grounding for Inverter 6.5.2 Second Protective Earth Terminals The inverters are equipped with second protective earth terminals as specified in EN 50178. Second PE Terminals There are two second PE terminals on both sides of the inverter. Users may choose one of them for PE connection.
  • Page 52: Communication Connection

    6 Electrical Connection User Manual Fig. 6-4 Second PE Terminals Second PE Connection Item Description Remark Screw M4×12mm Lock washer Washer Cable socket Yellow-green cable (9AWG) Fig. 6-5 Connection of the Second PE Connection *The connection parts are not included in the delivery scope. 6.6 Communication Connection 6.6.1 Communication Overview The inverter operation information can be transferred via its integrated RS485...
  • Page 53: Communication System

    User Manual 6 Electrical Connection communication cable and RJ45 plug (may not supplied with inverter). Meanwhile there are waterproof communication connectors supplied in the scope of delivery, to guarantee inverter protection degree. Lighting protection is recommended to the communication cables when installing this device in thunderstorm-prone areas.
  • Page 54: Rs485 Communication Connection

    6 Electrical Connection User Manual shielding layer of RS485 cable should be single-point grounded. The maximum number that inverters are connected in the daisy chain depends on converter, data logging device and other factors. Please refer to converter’s or data logging device’s manual to obtain the limit.
  • Page 55 If there is more than one inverter to communicate with a PC or a data logger, it is crucial to configure the communication parameters of each inverter. See 10.12 Communication Parameters Setting. SolarInfo logger and RS485-232 converter are optional parts and can be ordered from Sungrow.
  • Page 56: Commissioning

    Suppose there are sufficient sunlight and enough DC power. PV arrays initialize and supply DC power to inverter. The LCD display is activated to check the validity first. If there is a defect on the display, contact Sungrow. 48     ...
  • Page 57 User Manual 7 Commissioning Language selection screen will prompt. Perform Step 3 language settings with the right two buttons. Detailed button functions can be referred to “10.1 Description of Button Function”. Press choose language as you prefer. Confirm the settings by Pressing ENTER. Configure time according to the local time.
  • Page 58 7 Commissioning User Manual If the Country selected does not have the “Grid codes” directives, this configuration will not affect the following procedures. However, you may select the MV to enable/disable the LVRT function regardless of the country selected. After configuring the Grid Code, there will Step 8 be a “Pro-param”...
  • Page 59: Disconnecting, Dismantling And Disposing The Inverter

    8 Disconnecting, Dismantling and Disposing the Inverter 8.1 Disconnecting the Inverter For maintenance work or any service work, inverter must be switched off. In normal operation, switching off is not necessary. In order to disconnect the inverter from the AC and DC power sources, you should proceed with the following procedures.
  • Page 60: Dismantling The Inverter

    8 Disconnecting, Dismantling and Disposing the Inverter User Manual 8.2 Dismantling the Inverter Refer to Chapter 5 and Chapter 6 to dismantle the inverter in reverse steps. If the inverter will be reinstalled in the future, please refer to 4.4 Storage of Inverter for a proper conservation.
  • Page 61: Troubleshooting And Maintenance

    1. A fault is not removed yet. 2. Perform troubleshooting in according to fault type in LCD “Fault” indicator is lit screen. See “9.1.2 Troubleshooting of Faults in LCD Screen”. 3. If it cannot be solved, please contact Sungrow. 53 ...
  • Page 62: Troubleshooting Of Faults In Lcd Screen

    3. If the grid voltage is within the permissible range, contact Sungrow Service Dept.. 1. This is a short-term fault due to grid Inverter has checked that the condition. Wait a moment for inverter instantaneous sample value of recovery.
  • Page 63 3. Check whether grid is not on service. 4. If all conditions are OK and this malfunction still occurs in the LCD screen, contact Sungrow Service Dept.. The DC component of AC 1. Wait a moment for inverter recovery. current has exceeded inverter 2.
  • Page 64 2. If the fault occurs repeatedly, contact voltage. Sungrow Service Dept.. 1. Inverter will recover if the deviation Inverter has checked out the value falls below the protective limit. unbalance of neutral point 2. If the fault occurs repeatedly, contact voltage temporarily.
  • Page 65 Communication fault of LCD However, inverter continues feeding into the grid. Contact Sungrow Service Dept.. Wait for higher irradiation. Solar irradiation is not sufficient If this recurs at medium irradiation, for inverter operation. check the PV system design and correct the connection of PV inputs.
  • Page 66: Maintenance

    9 Troubleshooting and Maintenance User Manual 9.2 Maintenance 9.2.1 Routine Maintenance Items Methods Period Check the temperature and dust of the inverter. Six months to a Clean the inverter enclosure. year Check the humidity and dust of the environment. System clean depends on the Meanwhile check whether the filter function of dust...
  • Page 67 User Manual 9 Troubleshooting and Maintenance Replacement Fan If there is overheat and abnormal noise, please replace the fan. This task should be performed by technician. Disconnect the inverter from the grid first and then PV arrays before any maintenance work. Lethal voltage still exists in the inverter.
  • Page 68 9 Troubleshooting and Maintenance User Manual Loosen the screws used for fastening the Step 9 fans bracket. Remove the fan bracket from the Step 10 inverter. Clean the fans with soft brush or vacuum cleaner. Replace the broken Step 11 fans if necessary.
  • Page 69: Contact Sungrow Service

    User Manual 9 Troubleshooting and Maintenance 9.3 Contact Sungrow Service Should you have any problems in operating on the inverter, please contact us: Service hotline: +86 551 6532 7817 Email: service@sungrow.cn We need the following information to provide you the best assistance:...
  • Page 70: Operation Of Lcd Display Panel

    10 Operation of LCD Display Panel 10.1 Description of Button Function Inverter offers two buttons for the user to look up the running information and configure parameters settings. The two buttons have multiple functions. Please refer to Tab. 10-1before any operation onto inverter. Tab.
  • Page 71: Inverter Menu Structure

    User Manual 10 Operation of LCD Display Panel 10.2 Inverter Menu Structure Fig. 10-1 Menu Tree-English...
  • Page 72: Main Screen

    10 Operation of LCD Display Panel User Manual 10.3 Main Screen If the inverter succeeds in commissioning, LCD display will enter into the main screen, as shown in Fig. 10-2. Fig. 10-2 Main Screen Description Description Power curve. x-axis: time in hours; y-axis: output power yield P in %. Icons (refer to the Tab.
  • Page 73: Adjust Contrast

    User Manual 10 Operation of LCD Display Panel Inverter State Description If a fault occurs, the inverter will automatically stop operation, trigger the AC relay and show “Fault” on the LCD with the “FAULT” indicator lit. Fault Once the fault is removed in recovery time (set by user, see “10.10 Running Parameter Setting”), the inverter will automatically resume running.
  • Page 74: Detailed Running Information

    10 Operation of LCD Display Panel User Manual The contrast value ranges from 0 to 100. The recommended value is 50 or 60. 10.5 Detailed Running Information On the main screen, there is some basic information about the inverter. For more detailed running information, please operate as follows.
  • Page 75: History Records

    User Manual 10 Operation of LCD Display Panel The energy yields displayed by the LCD panel are indicative only. For the actual yields, please refer to the electric energy meter. 10.6 History Records 10.6.1 Running Information Records ) → His-record (Press Main Screen(Press ENTER)...
  • Page 76: Start And Stop Inverter

    10 Operation of LCD Display Panel User Manual 10.7 Start and Stop Inverter ×2) → Start/Stop(Press Main Screen(Press ENTER) →Menu(Press ENTER) Press to choose “Start”/”Stop” and press ENTER to confirm the choice. Press ENTER to confirm. 10.8 Input Parameter Settings Password The parameter settings are protected by the password.
  • Page 77: System Parameters Setting

    User Manual 10 Operation of LCD Display Panel 10.9 System Parameters Setting 10.9.1 Language Setting The inverter supports five languages: English, German, French, Chinese and Italian. Language can be configured as the following indication. Main Screen(Press ENTER)→Menu screen(Press ×3)→Set-param (Press ENTER) →...
  • Page 78: Load Default

    10 Operation of LCD Display Panel User Manual On the “Energy-adj” screen, Press to move cursor right and Press to set the correct offset value. Confirm settings by pressing ENTER. The positive symbol “+” can be changed to the negative symbol “-”.
  • Page 79: Running Parameter Setting

    User Manual 10 Operation of LCD Display Panel 10.10 Running Parameter Setting 10.10.1 Main Screen of Run-param ) →Menu screen(Press ×3) → Set-param Main Screen(Press ENTER (Press ENTER) →Enter password(Press ENTER, Press ) →Run-param (Press ENTER) On the “Run-param” screen, Press to select one item and Press ENTER...
  • Page 80: Reactive Power Regulation

    10 Operation of LCD Display Panel User Manual 10.10.2 Reactive Power Regulation The inverter provides reactive power regulation function. Use the “Q-Var switch” parameter to activate this function and select proper regulation mode. Regulation Mode Explanation The reactive power can be regulated by the parameter PF (Power Factor).
  • Page 81 User Manual 10 Operation of LCD Display Panel Parameter Explanation Default Range Upper Output power of point P2 in the Q(P) 100% 50%...100% Power* mode curve (in %) *Lower Power <Upper Power Reactive Fig. 10-3 Power Regulation Curve in Q(P) Mode “Q(U)”...
  • Page 82: Save P/Q-Set

    10 Operation of LCD Display Panel User Manual Parameter Explanation Default Range Grid voltage limit (in %) of point P2 in the U1 Limit* 95%...100% Q(U) mode curve Grid voltage limit (in %) of point P3 in the U2 Limit* 105% 100%...105% Q(U) mode curve...
  • Page 83: Protective Parameters Setting

    A password confirmation screen will occur. Press move cursor right and Press to input the password. Please enquire Sungrow or your dealer for this password. To make protective parameters setting convenient, Inverter provides country code selection. The protective parameters have been configured before delivery according to different countries utility grid requirements.
  • Page 84 10 Operation of LCD Display Panel User Manual Confirm by pressing ENTER after country code selection. Choose grid code according to actual grid condition. Note: “LV” represents Low Voltage Grid Code, and “MV” represents Middle Voltage Grid Code. When choose MV, Press to enter the LVRT function selection, Press to switch on or off the LVRT function...
  • Page 85 User Manual 10 Operation of LCD Display Panel Multi-stage Protective Parameters (when the country selection is not “IT”) If the selected protective parameter type is “Multi-stage”, the following sub-menus will come up. Press to select parameter, Press to move cursor right and Press set the appropriate value.
  • Page 86: Communication Parameters Setting

    10 Operation of LCD Display Panel User Manual Confirm settings by pressing ENTER and enter the “Setting confirmation” screen. Check all above-mentioned parameter settings. Confirm them by pressing ENTER. Cancel by pressing reset. When the Country or the Grid code or LVRT switch mode is changed, the protective settings will be unavailable unless the inverter is re-energized.
  • Page 87: Special Settings For Italy

    User Manual 10 Operation of LCD Display Panel 10.14 Special Settings for Italy If the “Countries” selection is “IT” (Italy), several LCD menus and operation methods are different from other countries. The differences focus on “Run-param” and “Pro-param” as shown below. 10.14.1 Over-frequency Derating Setting for Italy If the “Countries”...
  • Page 88: Reactive Power Regulation For Italy

    10 Operation of LCD Display Panel User Manual 10.14.2 Reactive Power Regulation for Italy Button Operation The button functions for Italy parameter setting sub-menus may differ from that in other menus. Proceed as follows to perform the parameter settings. Italy “Q(P)” Mode The power factor changes with the output power of the inverter.
  • Page 89 User Manual 10 Operation of LCD Display Panel Fig. 10-6 Reactive Power Regulation Curve in “IT” Q(P) Mode Italy “Q(U)” Mode The reactive power ratio changes with the grid voltage. Select Q(U) mode and Press to enter into the “Run-para-Q(U)” sub-menu. Press Press to navigate the cursor;...
  • Page 90: Protective Parameters Setting For Italy

    10 Operation of LCD Display Panel User Manual Fig. 10-7 Reactive Power Regulation Curve in “IT” Q(U) Mode 10.14.3 Protective Parameters Setting for Italy If the “Countries” selection is “IT” (Italy), the protective parameters settings procedures are shown below. “Grid codes” selection, After you may enter into the “Pro-param”...
  • Page 91 User Manual 10 Operation of LCD Display Panel “IT” Stage Ⅰ Protective Parameter If the selected protective parameter is “Pro-stageⅠ”, the following sub-menu will come up. Press to select parameter, Press to move cursor right and Press to set the appropriate value. Confirm settings by Pressing ENTER.
  • Page 92 10 Operation of LCD Display Panel User Manual Tab. 10-13 “IT”Stage Ⅱ Protective Parameters Explanation Parameter Explanation Max-V. prote Over-voltage protection Ⅰ-Max-V. rete Stage Ⅰ Grid over-voltage (U>) Ⅰ-Max-V. tempo Stage Ⅰ Grid over-voltage (U>) tripping time Ⅱ-Max-V. rete Stage Ⅱ Grid over-voltage (U>>) Ⅱ-Max-V.
  • Page 93: Appendix

    11 Appendix 11.1 Technical Data Parameters SG10KTL SG12KTL SG15KTL SG20KTL Input Side Data 10800W 12800W 15800W 21000W Max. input (5400W/ (6400W/ (7900W/ (10500W/ power ( DC1/DC2) 5400W) 6400W) 7900W) 10500W) Max. input 1000V voltage Startup voltage 270V 270V 270V 300V...
  • Page 94 Parameters SG10KTL SG12KTL SG15KTL SG20KTL AC active Max. 14.4A 17.3A 21.7A output current Nominal 3/N/PE, 230V/400V voltage 310…480Vac AC voltage range (May vary as per corresponding country’s grid standard) Nominal grid 50Hz/60Hz frequency Grid frequency 47…53Hz/57…63Hz range (May vary as per corresponding country’s grid standard) <...
  • Page 95: Terminals And Cables

    Parameters SG10KTL SG12KTL SG15KTL SG20KTL Communication RS485 (RJ45 connector) CE, DE0126-1-1, EN62109-1, EN62109-2, EN62109-1, EN62109-2, EN61000-6-2, G59/2, CEI-021, EN61000-6-3, VDE0126-1-1, CEI-021, AS/NZS 3100, C10/C11, EN50160, RD1669, IEC61727, UTE C AS4777.2, Certification 15-712-1, EN50438, AS/NZS3100, AS4777.2, AS4777.3, AS4777.3, G83/1(10K), G59/2(12K/15K), VDE-AR-N-4105 VDE-AR-N-4105, BDEW, CGC-Solar.
  • Page 96: Exclusion Of Liability

    Damages caused by irresistible natural environment The use of supplied software produced by Sungrow Power Supply Co., Ltd. is subject to the following conditions: Sungrow Power Supply Co., Ltd. rejects any liability for direct or indirect damages arising from the use of the SolarInfo software.
  • Page 97: About Us

    The power rating of Sungrow products covers from hundred watt to mega-watt systems. The vision of Sungrow is to help our customers acquire stable and clean power with minimum cost, maximum reliability and enhanced safety.
  • Page 98 Sungrow Power Supply Co., Ltd. Add: No.1699 Xiyou Rd.,New & High Technology Industrial Development Zone, 230088,Hefei, P. R. China. Post Zip: 230088 Web: www.sungrowpower.com Tel: +86 551 6532 7834/6532 7845 E-mail: info@sungrow.cn Fax: +86 551 6532 7856 Specifications are subject to changes without advance notice.

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