Sungrow SG10KTL-EC User Manual
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Sungrow SG10KTL-EC User Manual

Pv grid-connected inverter
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See also: Quick User Manual
User Manual
SG8KTL-EC/SG10KTL-EC/
SG12KTL-EC
PV Grid-Connected Inverter
SG8_10_12KTL-ECV11-UEN-Ver15-201508 Version：1.5

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Summary of Contents for Sungrow SG10KTL-EC

  • Page 1 User Manual SG8KTL-EC/SG10KTL-EC/ SG12KTL-EC PV Grid-Connected Inverter SG8_10_12KTL-ECV11-UEN-Ver15-201508 Version：1.5...
  • Page 3 About This Manual This manual is for the inverters SG8KTL-EC, SG10KTL-EC, and SG12KTL-EC (hereinafter referred to as the inverter unless specified otherwise). They are grid-connected, transformer-less, robust inverters with high conversion efficiency. The devices will bring you profit for PV power system.
  • 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 Disconnect the inverter from mains and PV generator before service! Do not touch any inner live parts until 10 minutes after disconnection from the utility grid and the PV input. 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 About This Manual ................I  1  Safety Instructions ..............1  2  Product Introduction ............... 6      Intended Usage ...................... 6     Product Description ....................7   2.2.1 Inverter Appearance ....................7   2.2.2 Inverter Dimensions ....................8  ...
  • Page 7   5.4.2 Assembling AC Cables to Connector .............. 29     Connecting Inverter to PV Arrays ..............30   5.5.1 PV Inputs Configuration ..................31   5.5.2 Assembling DC Cable to Connector ..............33   5.5.3 DC Wiring Procedure ..................... 35  ...
  • Page 8 7  Commissioning............... 63      Inspection before Commissioning ............... 63     Commissioning Procedure ................63 8  Disconnecting, Dismantling and Disposing of the Inverter 67      Disconnecting the Inverter ................67     Dismantling the Inverter .................. 68    ...
  • Page 9   10.10.4 System Configuration ..................88   10.10.5 Firmware Version ....................89     10.11 Setting Running Parameter ................90   10.11.1 Main Screen of Run-param ................90   10.11.2 Reactive Power Regulation ................91   10.11.3 Save P/Q-set ......................93  ...

  • Page 11: 1  Safety Instructions

    1 Safety Instructions IMPORTANT SAFETY INSTRUCTIONS The inverters have been designed and tested strictly according to the international safety regulations. As electrical and electronic equipments, safety instructions related to them must be complied with during installation, commissioning, operation and maintenance. Incorrect operation or work may result in damage to ...
  • Page 12 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 13 User Manual 1 Safety Instructions Lethal voltage! PV arrays will produce electrical energy when exposed to sunlight and thus can create an electrical shock hazard. Wiring of the PV arrays should be performed only by qualified personnel. All cables must be firmly attached, undamaged, properly insulated and adequately dimensioned.
  • Page 14 1 Safety Instructions User Manual Maintenance and Service Always keep in mind that the inverter is power supplied by dual power sources: PV arrays and utility grid. There is a risk of inverter damage or personnel injury due to incorrect service work! Before any service work, you should obey the following procedures.
  • Page 15 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 its components. 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 16: 2  Product Introduction

    Grid Dispatch Center Control signal Household Load Fig. 2-1 PV Power System Item Description Remark PV strings Monocrystalline silicon, polycrystalline silicon, and thin-film of protection class II without grounding. Inverter SG8KTL-EC, SG10KTL-EC and SG12KTL-EC. Metering device Meter cupboard with power distribution system.

  • Page 17: Product Description

    User Manual 2 Product Introduction Item Description Remark Smart energy Three-phase electronic energy meter, used to measure meter (optional) the active power output. Communicate with the inverter via RS485 port. Utility grid TT, TN-C, TN-S, TN-C-S. Household load Household appliances. 2.2 Product Description 2.2.1 Inverter Appearance Fig.

  • Page 18: Inverter Dimensions

    Type W(mm) H(mm) D(mm) Net weight(kg) SG8KTL-EC SG10KTL-EC SG12KTL-EC 2.2.3 LCD Display Panel As a human-computer interaction interface, LCD display panel is on the front panel and comprises LED indicators, buttons and LCD screen.  LED indicators indicate the working status of the inverter.

  • Page 19: Technical Description

    User Manual 2 Product Introduction Fig. 2-4 LCD Display Panel Name Description LED indicators “RUN” and “FAULT”. The current state can be known from the two indicators. Detailed definition is shown in Tab. 2-2. Buttons User can operate the LCD menu of the inverter via the two buttons.

  • Page 20: Functions Description

     Zero export (0% feed-in function, optional) At the grid-connection point, the three-phase SUNGROW Energy Meter is used for measuring the feed-in power. Enable the feed setting and set the limit value via the LCD menu. Then the inverter will run with power derating once the meter...
  • Page 21 User Manual 2 Product Introduction  Protection functions include: − Short circuit protection − Insulation resistance detection and alarm − Inverter output voltage monitoring − Inverter output frequency monitoring − Residual current monitoring − DC injection of AC output current surveillance −...

  • Page 22: 3  Unpacking And Storing

    3 Unpacking and Storing 3.1 Unpacking and Inspecting The device is thoroughly tested and inspected before delivery. Although sturdy packaging is used, damage may still occur during shipping. If there is visible damage to the packaging or the inner contents, or anything missing, contact the device dealer.

  • Page 23: Identifying Inverter

    They provide information about the inverter type, the most important specifications, marks of certification institutions, website and serial number which are available and identified by SUNGROW. Fig. 3-2 Nameplates of Inverters *Image shown here is for reference only. Actual product you receive may differ.

  • Page 24: Delivery Contents

    3 Unpacking and Storing User Manual 3.4 Delivery Contents Fig. 3-3 Delivery Contents *Image shown here is for reference only. Actual product you receive may differ. Item Description Inverter. Wall bracket used to mount inverter onto the wall. Expansion bolts for fastening wall bracket onto concrete wall. Fastener set for installing wall bracket onto metal frame.

  • Page 25: Storing The Inverter

    If there is more than one inverter to be stored, the maximum layers for original paper packaging are 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 26: 4  Securing Inverter To The Wall

    4 Securing Inverter to the Wall 4.1 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. 1. Take the load capacity of the wall into account. The wall (such as concrete wall and metal structure) should be strong enough to hold the weight of the inverter over a long period.
  • Page 27 User Manual 4 Securing Inverter to the Wall 5. Install the device at eye level for easy buttons operation and display reading. 6. It is suggested that the inverter be installed vertically with upside up for good heat dissipation. 7. Never install the inverter horizontally, or with a forward tilt or with a backward tilt or even with upside down.
  • Page 28 4 Securing Inverter to the Wall User Manual 9. The ambient temperature should range from -25°C to 60°C. The power output will reduce when ambient temperature exceeds 45°C. 10. The maximum relative humidity of chosen installation site can reach 100%. 11.

  • Page 29: Moving Inverter To Installation Site

    User Manual 4 Securing Inverter to the Wall 13. For multiple inverters installation, position the inverters side by side. For multi-row inverters installation, position the inverters in a staggered arrangement. 14. Do not install the inverter in an enclosed space. Otherwise, the inverter will not operate normally.

  • Page 30: Installing The Inverter

    4 Securing Inverter to the Wall User Manual 4.3 Installing the Inverter Inverter is installed onto the wall by means of wall bracket in the packaging. Fig. 4-1 Dimensions of wall bracket(unit: mm) There are two sets of stainless fasteners supplied to attach the wall bracket to the concrete wall and metal frame respectively.
  • Page 31 User Manual 4 Securing Inverter to the Wall In order to avoid electrical shock or other injury, inspect if there is electricity or plumbing installations before drilling holes. Attach the wall bracket to the wall with the supplied expansion bolt set. The torque for fastening the nut should be at least 35 Nm.
  • Page 32 4 Securing Inverter to the Wall User Manual On Metal Frame If the chosen mounting location is metal frame, please proceed as follows to mount the inverter. Remove the supplied wall bracket from the packaging. Choose the best installation site according to above requirements. Place the wall bracket onto the chosen metal frame and adjust it until it is in a horizontal position.
  • Page 33 User Manual 4 Securing Inverter to the Wall The Installers must wear gloves to avoid scratches when mounting the inverter. To protect the inverter from theft, you can lock it to the wall bracket with a theft-proof device and a padlock.

  • Page 34: 5  Electrical Connection

    5 Electrical Connection Once the inverter is firmly attached to the appropriate location, it can be connected into the PV power system. Improper operation during the wiring process can cause fatal injury to operators or unrecoverable damages to the inverter. Only qualified personnel can perform the wiring work.
  • Page 35 The maximum open-circuit voltage of each PV string is 1000 V. SolarInfo logger It can be ordered from SUNGROW. Or use compatible logger from Meteo-Control, Solar-Log or Papendorf SE Remote PC User uses this device to monitor the whole PV system.

  • Page 36: Terminals Description

    5 Electrical Connection User Manual 5.2 Terminals Description All electrical terminals are located at the bottom of the inverter. Fig. 5-2 shows the connection area. Enough space around the inverter should be kept for electrical connection when choosing the installation site. Fig.

  • Page 37: Connecting Inverter To Grid

    AC Side Circuit Breaker An independent three or four-pole circuit breaker for the inverter must be installed at the output side to ensure that the inverter can be securely disconnected under load. Inverter Type Specification for AC Circuit Breaker SG8KTL-EC SG10KTL-EC SG12KTL-EC...
  • Page 38 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 “Technical notes for multiple-paralleled grid-connected inverters” in the download area of SUNGROW website). AC Cable Requirements The grid is connected to the inverter via 5 wires (L1, L2, L3, N and PE).

  • Page 39: Assembling Ac Cables To Connector

    Section diameters m Cable Range Recommen Range Recommended Length SG8KTL-EC/ 4…10 mm² 4…10 mm² 11…20 SG10KTL-EC/ (AWG11…A (AWG11…A SG12KTL-EC WG7) WG7)  Withstand ambient temperature;  Layout type (inside wall, underground, free air etc.);  UV resistance and so on.

  • Page 40: Connecting Inverter To Pv Arrays

    5 Electrical Connection User Manual Insert appropriate size AC cables into the water-proof terminal. Strip off insulation layer of all AC cables. length strip insulation approximately 10 mm. Fix all cables ends to the corresponding terminals with the torque of 1 Nm according to markings on the connector, especially “PE”...

  • Page 41: Pv Inputs Configuration

    User Manual 5 Electrical Connection Before connecting the PV arrays to the inverter, make sure that the impedances between the positive terminal of the PV string and Earth and the impedances between the negative terminal of the PV string and Earth are larger than 200 Kohm.
  • Page 42 Total Input for Each Input for Each Input 28 A SG8KTL-EC 8440 W 1000 V 14 A 28 A SG10KTL-EC 10550 W 1000 V 14 A 30 A SG12KTL-EC 12650 W 1000 V 15 A In independent mode, when there is only one PV input, the other input may produce induced voltage.

  • Page 43: Assembling Dc Cable To Connector

    Voltage Limit for Current Limit for Limit for Inverter Each Input Total Input SG8KTL-EC 8440 W 1000 V 42 A SG10KTL-EC 10550 W 1000 V 42 A SG12KTL-EC 12650 W 1000 V 45 A Configuration of Parallel Mode for SG8/10KTL-EC Both the default configuration modes of the hardware and LCD screen are independent.
  • Page 44 Withstand Voltage Current Same with 4...6 mm SG8KTL-EC 6…9 mm 1000 V short-circuit 11AWG-9AWG current. Same with 4...6 mm SG10KTL-EC 6…9 mm 1000 V short-circuit 11AWG-9AWG current. Same with 4...6 mm SG12KTL-EC 6…9 mm 1000 V short-circuit 11AWG-9AWG current. DC Connector Assembling Procedure Strip off 7 mm insulation layer from all DC cables.

  • Page 45: Dc Wiring Procedure

    User Manual 5 Electrical Connection insulator with tightening torque 2.5…3 Nm. For further assembly and connection instruction, please visit the webpage of the device manufacturer. 5.5.3 DC Wiring Procedure Make sure that none of the DC or AC cables connected to the inverter is live before the electrical work.
  • Page 46 5 Electrical Connection User Manual Check the cable connection of PV strings for the correct polarity and that the open-circuit voltage does not exceed the inverter input limit 1000 V, even under the lowest operating temperature. Refer to module specification supplied by module manufacturer for detailed information.
  • Page 47 One pair of DC terminals in DC1 input and DC2 input must be short-circuited by Y-type cable connector terminal. (For SG8KTL-EC and SG10KTL-EC) Connect other PV strings in the same procedures if necessary. Unused DC...

  • Page 48: Grounding The Inverter

    5 Electrical Connection User Manual 5.6 Grounding the Inverter Because of the transform-less design of the inverter, DC positive pole and DC negative pole are not permitted to be grounded. The inverter will not function properly if otherwise. 5.6.1 Grounding System Overview All non-current carrying exposed metal parts of the equipment and other enclosures in the PV power system should be grounded (e.g., PV arrays frame and inverter enclosure).

  • Page 49: Second Protective Earth Terminal

    User Manual 5 Electrical Connection 5.6.2 Second Protective Earth Terminal The inverters are equipped with second protective earth terminal as specified in EN 50178. Second PE Terminal There is a PE terminal on the right side of the inverter. You may choose to connect the PE.

  • Page 50: Communication Connection

    5 Electrical Connection User Manual 5.7 Communication Connection 5.7.1 Interfaces Overview All communication terminals are located on the bottom of the inverter. There are two kinds of optional connection ports on the communication circuit board: RS485 serial communication with RJ45 ports (RS485-1/2) and Ethernet communication with RJ45 ports (NET-1/2).

  • Page 51: Rs485 Communication Connection

    If the communication system is equipped with SolarInfo Logger, inverters may be remotely monitored via SolarInfo Bank. SolarInfo logger and RS485-232 converter are optional parts and can be ordered from SUNGROW. For Single Inverter Where there is only one inverter, Network cable with RJ45 plugs enables connection between the inverter and PC.
  • Page 52 5 Electrical Connection User Manual Fig. 5-8 Multiple inverters RS485 communication connection RS485 Connection Procedure Loosen all 6 fasten screws on the communication terminal lid and remove the lid. Unscrew Thread-Lock Sealing Nut, pull out the Waterproof Sealing Insert from the port. Lead the network cables through the Thread-Lock Sealing Nut, and the cable gland.
  • Page 53 User Manual 5 Electrical Connection Push the Waterproof Sealing Insert into the cable gland and make sure that all unused cable openings are sealed with dustproof plugs. According to the position of the inverter, repeat step 6 to connect the other network cables to the RS485-1 /RS485-2.

  • Page 54: Ethernet Communication Connection

    5 Electrical Connection User Manual If you don’t need to connect other cables, fix all fasten screws to the communication terminal lid, push the Waterproof Sealing Insert back to communication ports and tighten the Thread-Lock Sealing Nut firmly to the cable gland.
  • Page 55 User Manual 5 Electrical Connection Fig. 5-12 Inverters network connection in daisy chain topology The network communication of the daisy chain is done via the inverter in-built switching chip. Therefore, when the inverter is damaged or enters the low power consumption status, the switching chip cannot work normally and the daisy chain communication will be interrupted.
  • Page 56 5 Electrical Connection User Manual  The related parameters settings can be changed only by qualified personnel!  RS485 and Ethernet communication connection cannot be used simultaneously due to their different communication protocols, communication abnormal will occur if otherwise. Ethernet Connection Procedure Loosen all 6 fasten screws on the communication terminal lid and remove the lid.

  • Page 57: Power Control Configuration

    User Manual 5 Electrical Connection Repeat step 1 to step 7 to connect the other inverters with Network cables. Pull cables outwards to confirm whether they are fastened firmly. Plug the other end of network cables into the sockets of the switch or router, connect the switch or router to a PC.
  • Page 58 5 Electrical Connection User Manual  Start  Stop  Active power limitation and reactive power ratio setting  Active power limitation and power factor setting Where there is only one inverter, users can perform default active power limitation function by connecting the inverter to the ripple control receiver. Where there are several inverters, set the inverter directly connected to the ripple control receiver via LCD display or Webserver as the master inverter (communication role).
  • Page 59 User Manual 5 Electrical Connection Item Description Item Description Master inverter 5-conductor connection at digital input Slave inverter Ripple control receiver RS485 connection Grid Fig. 5-15 Connect the ripple control receiver for inverters with Ethernet connections Item Description Item Description Master inverter 5-conductor connection at digital input Slave inverter...
  • Page 60 5 Electrical Connection User Manual Pull cables outwards to confirm whether they are installed firmly. Connect the four-pole plug to the DI connection socket. Connect the ripple control receiver to the inverter according to the terminal assignment. The four negative input terminals is equipotential, you can choose any one to connect.
  • Page 61 User Manual 5 Electrical Connection DO Relay Configuration The inverter has two DO relays, with functions as follows: − DO1: Grounding fault alarm (not configurable) − DO2: Consumer load control The relays are configured as NO (Normally Open) contact by default. The DO2 contact can be used in two different operating modes that can be set via the LCD menu of the inverter.
  • Page 62 5 Electrical Connection User Manual Pull cables outwards to confirm whether they are installed firmly. Connect the three-pole plug to the DO connection sockets. The DO2 relay can be configured as NO (by connecting COM and OFF) or NC (by connecting COM and ON) contact.

  • Page 63: 6  Visiting And Configuring The Webserver

    6 Visiting and Configuring the Webserver 6.1 User and Authority The Webserver provides user permission and installer permission. To avoid two or more persons to change the inverter configurations at the same time, only one person can login to Webserver at a time. Therefore, once a person logs in and does not exit, other person cannot log in anywhere else.

  • Page 64: Main Interface

    6 Visiting and Configuring the Webserver User Manual 6.3 Main Interface Fig. 6-1 Webserver-user interface Name Description Status bar Language selection and user login info Device info The serial number of the inverter. Operation information, parameter setting, history record, grid dispatching, output node,...

  • Page 65: Detailed Information

    User Manual 6 Visiting and Configuring the Webserver Tab. 6-1 Explanation of the icons Icon Name Description : Inverter is not in the fault state. Current status The inverter is in fault state (DSP and LCD communication fault, or fault of the inverter.) reduction reduction due to the use of inverter Total runtime...

  • Page 66: Parameter Settings

    6 Visiting and Configuring the Webserver User Manual 6.4 Parameter Settings Parameter settings include system parameters, operating parameters, protection parameters, and communication parameters. 6.4.1 System Parameters This interface is to set time and total energy adjustment. 6.4.2 Operating Parameters This interface is for Austria and Vorarlberg to set the standby time, recovery time, insulation resistance, active power settings and reactive power regulation.
  • Page 67 This interface is for Germany and others to set the standby time, recovery time, insulation resistance, active power settings and reactive power regulation. For detailed information, please refer to “10.11 Setting Running Parameter ”. To set the Q(P) or Q(U) parameters, please contact SUNGROW to get the installer authority first.

  • Page 68: Protection Parameters

    6 Visiting and Configuring the Webserver User Manual 6.4.3 Protection Parameters This interface is for Australia to select the company, single protect stage or multiple protect stage. This interface is for Austria and Vorarlberg to select the grid codes such as voltage, country, single protect stage or multiple protect stage.

  • Page 69: Communication Parameters

    For detailed information, please refer to “10.12 Setting Protective Parameters ”. To set the abovementioned protection parameters, please contact SUNGROW to get the installer authority first. 6.4.4 Communication Parameters This interface is to set the related communication parameters. The newly set parameters will not be effective immediately.

  • Page 70: History Record

    6 Visiting and Configuring the Webserver User Manual 6.5 History Record History record includes the running record, fault record, and event record. 6.5.1 Running Record This interface is to search the running information of the inverter. The default display is the running record of the preset day with 10 records in each page. If there is more than 10 records, system will automatically list them in different pages.

  • Page 71: Event Record

    User Manual 6 Visiting and Configuring the Webserver 6.5.3 Event Record This interface is to view the inverter event records. At most 100 event records can be stored with 10 records in each page. 6.6 Power Control Configuration This interface is to set the grid dispatching parameters. The different statues of four digital inputs are the configuration functions of corresponding actions.

  • Page 72: Output Node

    It is recommended to perform grid dispatching as per default setting of each configuration status. The change of related parameters must be done only by qualified personnel. Any breach may void warranty claims from SUNGROW. 6.7 Output Node This interface is to set the grounding warning and appliance node parameters. For detailed information, please refer to “10.10.4 System Configuration”.

  • Page 73: 7  Commissioning

    Commissioning Commissioning is a critical part for a well-installed PV system, which can protect against fires, injury and electrical shock. 7.1 Inspection before Commissioning Before starting the inverter, you should check the following items. The inverter is accessible for operation, maintenance and service. Re-check that the inverter is firmly installed onto the wall.
  • Page 74 7 Commissioning User Manual Country selection screen will prompt. Perform country settings with the right two buttons. Detailed button functions can be found in “10.1  Description of Button Function”. Press choose country code. Confirm the settings by Pressing ENTER. Refer to “10.12 Setting Protective Parameters ”...
  • Page 75 User Manual 7 Commissioning (Optional) When the country code “AU” and the grid standard “Manual” are   selected, Press ENTER to enter the “Pro-Stage” interface. Press   choose the correct stage. Press to move cursor and Press to scroll up time value.
  • Page 76 7 Commissioning User Manual Configure time according to the local time. Time setting is very important, which directly  affects data logging. Press to move cursor  and Press to scroll up time value. Confirm the settings by Pressing ENTER. The date format is YY/MM/DD.

  • Page 77: 8  Disconnecting, Dismantling And Disposing Of The Inverter

    8 Disconnecting, Dismantling and Disposing of the Inverter 8.1 Disconnecting the Inverter For maintenance or other service work, the 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, proceed as follows.

  • Page 78: Dismantling The Inverter

    8 Disconnecting, Dismantling and Disposing of the Inverter user manual For further disconnection and conductor reconnection instruction, please visit the webpage of device manufacturer. 8.2 Dismantling the Inverter Refer to Chapter 4 and Chapter 6 for the inverter dismantling in reverse steps. If necessary, remove the wall bracket from the wall.

  • Page 79: 9  Troubleshooting And Maintenance

    2. Perform troubleshooting according to fault type in LCD screen. See “9.1.2 Troubleshooting of Faults in LCD Screen”. 3. If it cannot be solved, please contact SUNGROW. 9.1.2 Troubleshooting of Faults in LCD Screen  When faults occur, “Fault” state will be shown on the main screen. Press to view multiple “current fault”...
  • Page 80 SUNGROW Service Dept.. The DC component of 1. Wait a moment for inverter recovery. AC current has exceeded 2. Contact SUNGROW if the fault reoccurs. inverter limit. Inverter has detected 1. Check the PV strings for ground fault. that there is a failure 2.
  • Page 81 Fault code Specification Troubleshooting 2. Check AC cables for inappropriate size. 3. Wait a moment for inverter recovery. 4. Contact SUNGROW if the fault reoccurs. inverter detected that there is 1. Wait a moment for inverter recovery. unbalance between the 2.
  • Page 82 Phase-R current sampling channel fault. Phase-S current 1. Wait a moment for inverter recovery. sampling channel fault. 2. Contact SUNGROW if the fault reoccurs. Phase-T current sampling channel fault. Inverter overcurrent hardware protection. 1. Wait a moment for inverter recovery.
  • Page 83 3. Check whether the “PE” cable and the N exceeds the set value. cable are well-connected; 4. Wait until the inverter reverts to normal; 5. Contact SUNGROW if the fault reoccurs. Deviation between the 1. Wait a moment for inverter recovery. PV input power and 2.
  • Page 84 Fault code here is for SG8KTL-EC and SG10KTL-EC; while for SG12KTL-EC, the fault code is 304 and 305. Fault code here is for SG8KTL-EC and SG10KTL-EC; while for SG12KTL-EC, the fault code is 041. Fault code here is for SG8KTL-EC and SG10KTL-EC; while for SG12KTL-EC, the fault code is 070-071.

  • Page 85: Maintenance

    User Manual 9 Troubleshooting and Maintenance 9.2 Maintenance 9.2.1 Routine Maintenance Items Methods Period Save data Save the running data, parameters and Once 100 days log to a disk or a file. Visual check damage deformation of the inverter. Check there is any abnormal noise during the running of the inverter.

  • Page 86: Maintenance Instruction

    Clean the air inlet and outlet with soft brush or vacuum cleaner if necessary. Battery Maintenance There is a button battery on the inner LCD PCB board. Contact SUNGROW Service Dept. to replace the battery when it is end of service life.

  • Page 87: 10  Operating The Lcd Menu

    10 Operating the LCD Menu 10.1 Description of Button Function Inverter offers two buttons for the user to look up the running information and configure parameters. The two buttons have multiple functions. Please refer to Tab. 10-1 before any operation onto inverter. Tab.

  • Page 88: Inverter Menu Structure

    10 Operating the LCD Menu User Manual 10.2 Inverter Menu Structure Fig. 10-1 Menu Tree-English *The menu tree of SG12KTL-EC doesn’t have the submenu “ISO-protect”.

  • Page 89: Main Screen

    User Manual 10 Operating the LCD Menu 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 90 PV connection is correct.  If no anomaly is found, please disconnect DC switch and grid switch to restart.  If it still does not work, contact SUNGROW.  If inverter is in “Fault” state, Press to view multiple “Current fault”...

  • Page 91: Adjusting Contrast

    User Manual 10 Operating the LCD Menu 10.4 Adjusting Contrast 1. Press to enter into the contrast adjustment screen.   2. Press to increase the setting value and press to decrease the value. 3. Press to confirm the contrast setting. ENTER The contrast value ranges from 0 to 100.
  • Page 92 10 Operating the LCD Menu User Manual Energy generated each day in this month. Energy generated every month in this year. Total annual generating capacity in the past fifteen years. DC power input: The total input power of PV1 and PV2. Vdc: DC voltage of each input.

  • Page 93: History Running Information

    User Manual 10 Operating the LCD Menu P-W: Inverter output active power. Country: Inverter selected country code. The power value indicated by each column of the histogram represents the average value of the power during the related unit interval. 10.6 History Running Information 10.6.1 Fault Records Main Screen (Press ENTER)→Menu (Press )→His-inform (Press ENTER)→...

  • Page 94: Running Information Records

    10 Operating the LCD Menu User Manual The inverter can only store at most 100 latest history event records. 10.6.3 Running Information Records Main Screen (Press ENTER)→Menu (Press )→His-inform (Press ×2)→ Run-record (Press ENTER) On the “Run-record” display, you can scroll pages by pressing , ...

  • Page 95: Starting And Stopping The Inverter

    The parameter settings are password-protected. You can see the inverter’s parameters or set the parameters if you input a default password A (111111). You can set all parameters of the inverter if you input a dedicated password B. Please ask SUNGROW or your dealer for this password. Press ENTER to enter into “Menu”...

  • Page 96: Button Operation For Parameters Setting

    10 Operating the LCD Menu User Manual A password confirmation screen will occur.   Press to move cursor right and Press input the password A. Press ENTER to confirm the password and enter the “Set-param” submenu. 10.9 Button Operation for Parameters Setting The button functions for parameter setting in submenus may differ from that in other menus.

  • Page 97: Energy Adjustment

    User Manual 10 Operating the LCD Menu Main Screen (Press ENTER)→Menu screen (Press ×3)→Set-param (Press ENTER)→Enter password 111111 (Press ENTER)→Sys-param (Press ENTER)→ Time (Press ENTER)  On the “Time” screen, Press to move the cursor  right and Press to set the correct date and time. Confirm settings by pressing ENTER.

  • Page 98: System Configuration

    10 Operating the LCD Menu User Manual Main Screen (Press ENTER)→Menu screen (Press ×3)→Set-param (Press ENTER)→Enter password 111111 (Press ENTER)→Sys-param (Press ENTER, Press ×2)→Load default (Press ENTER) Press ENTER to confirm “load default”. 10.10.4 System Configuration ×3)→Set-param (Press  Main Screen (Press ENTER)→Menu screen (Press ENTER)→Enter password 111111 (Press ENTER)→Sys-param (Press ENTER, Press ×3)→Sys-config (Press ENTER) On the “Sys-config”...

  • Page 99: Firmware Version

    The lowest power of the inverter to activate the Electri wake function. Wake power SG8KTL-EC: range: 2.4 kW...8 kW, default: 5.6 kW. SG10KTL-EC: range: 3 kW...10 kW, default: 7 kW. SG12KTL-EC: range: 4 kW...12 kW, default: 8.4 kW. The time needed before the relay receives drive signal. Stable time Range: 1 min...60 min, Default: 10 min.

  • Page 100: Setting Running Parameter

    10 Operating the LCD Menu User Manual 10.11 Setting Running Parameter 10.11.1 Main Screen of Run-param ×3)→Set-param (Press  Main Screen (Press ENTER)→Menu screen (Press ENTER)→Enter password 111111 (Press ENTER, Press )→Run-param (Press ENTER) On the “Run-param” screen, scroll pages by pressing ...

  • Page 101: Reactive Power Regulation

    User Manual 10 Operating the LCD Menu Parameter Explanation Default Range Feed Setting Enable/disable For Australia: ON ON/OFF function of limiting For others: OFF the feed power. Feed Power upper limit For Australia: 092.0% 0...100% value of feed power. For others: 100.0% 10.11.2 Reactive Power Regulation The inverter provides reactive power regulation function.
  • Page 102 10 Operating the LCD Menu User Manual Tab. 10-5 “Q(P)” Mode Parameters Explanation Parameter Explanation Default Range Power factor of point P1 in the Q(P) mode Upper PF Cap 0.9…1 curve Lower Output power of point P1 in the Q(P) 0%...50% Power* mode curve (in %)

  • Page 103: Save P/Q-Set

    User Manual 10 Operating the LCD Menu Tab. 10-6 “Q(U)” Mode Parameters Explanation Parameter Explanation Default Range Upper Q/Sn Capacitive Q/Sn value of point P1 in the 0%...50% Q(U) mode curve Lower Q/Sn Inductive Q/Sn value of point P4 in the 0%...50% Q(U) mode curve Grid voltage limit (in %) of point P4 in the...

  • Page 104: Setting Protective Parameters

    10 Operating the LCD Menu User Manual 10.12 Setting Protective Parameters Protective parameters are designed for the limit value that can trigger the protective functions of the inverter. Main Screen (Press ENTER)→Menu screen (Press ×3)→Set-param (Press ENTER)→ Enter password 111111 (Press ENTER, Press ×2)→Pro-param (Press ENTER) To make protective parameters setting convenient, inverter provides country code selection.
  • Page 105 User Manual 10 Operating the LCD Menu (Optional) When the country code “AU” is selected, Press ENTER   enter the “Grid Standard” interface. Press to choose the correct grid standard. Press ENTER to confirm the choice. (Optional) When the country code “AU” and the grid standard “Manual” ...
  • Page 106 10 Operating the LCD Menu User Manual Single-stage Protective Parameters (when the country selection is not “AT”, “VB(DE)”, or “IT”) If the selected protective parameter type is “Single-stage”, the following submenu will come up.   Press to select parameter, Press to move cursor right ...

  • Page 107: Setting Communication Parameters

    User Manual 10 Operating the LCD Menu Parameter Explanation Ⅱ-Min -V. time Stage Ⅱ Grid under–voltage (U<<) tripping time Max-F. prot Over-frequency protection Ⅰ-Max-F. grid Stage Ⅰ Grid over-frequency (f>) Ⅰ-Max-F. time Stage Ⅰ Grid over-frequency (f>) tripping time Ⅱ-Max-F. grid Stage Ⅱ...

  • Page 108: Setting Pv Configuration Mode

    10 Operating the LCD Menu User Manual Apply an IP address, subnet mask, default gateway and port number for the inverter from your network administrator. If there is more than one inverter and all the inverters are set to DHCP [OFF], a unique IP address should be assigned to each inverter.

  • Page 109: Reactive Power Regulation For Austria And Vorarlberg

    User Manual 10 Operating the LCD Menu Default derating slope (Pm/Hz, Pm is the power before derating): 40.00%. Range: 40% ...100%. Note: “Derating Slope”* is the power derating slope. Power derating slope = 100 / (Grid frequency × Frequency derating slope). Frequency derating slope range: 2% ...5%.
  • Page 110 10 Operating the LCD Menu User Manual “Q(U)” Mode for Austria and Vorarlberg The reactive power ratio changes with the grid voltage. Select Q(U) mode and Press ENTER to enter into the “Run-param” submenu.   Press Press to navigate the cursor; to enter into the editing mode, then the selected parameter will be shaded.

  • Page 111: Protective Parameters Setting For Austria And Vorarlberg

    User Manual 10 Operating the LCD Menu Fig. 10-6 Reactive Power Regulation Curve in Q(U) Mode 10.15.3 Protective Parameters Setting for Austria and Vorarlberg If the “Countries” selection is “AT” (Austria) or “VB(DE)” (Vorarlberg), proceed as follows to set the protective parameters. Single-stage Protective Parameter If the selected protective parameter is “single-stage”, the following submenu will come up.
  • Page 112 10 Operating the LCD Menu User Manual   Press to select parameter, Press to move cursor  right and Press to set the appropriate value. Confirm settings by pressing ENTER. Tab. 10-11 Grid protection Recovery Value Parameter Explanation Inverter can start operating only when the grid frequency is below Fmax Fmax recovery.
  • Page 113 User Manual 10 Operating the LCD Menu 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 and reset. Multi-stage Protective Parameter Pro-param Multi Pro-param Multi ...

  • Page 114: Special Settings For Italy

    10 Operating the LCD Menu User Manual Parameter Explanation Ⅰ-Min -F. time Stage Ⅰ Grid under-frequency (f<) tripping time Ⅱ-Min -F. grid Stage Ⅱ Grid under-frequency (f<<) Ⅱ-Min -F. time Stage Ⅱ Grid under-frequency (f<<) tripping time   Press to select parameter, Press to move cursor ...

  • Page 115: Reactive Power Regulation For Italy

    User Manual 10 Operating the LCD Menu Note: “Derating Slope”* is the power derating slope. Power derating slope = 100 / (Grid frequency × Frequency derating slope). Frequency derating slope range: 2% ...5%. Fig. 10-7 “IT” Over-frequency Derating Curve 10.16.2 Reactive Power Regulation for Italy Italy “Q(P)”...
  • Page 116 10 Operating the LCD Menu User Manual Exit from the Q(P) regulation mode Uout** when the grid voltage is below 100% 90%...100% Uout *PA < PB≤ PC ** Uin＞Uout Fig. 10-8 Reactive Power Regulation Curve in “IT” Q(P) Mode Italy “Q(U)” Mode The reactive power ratio changes with the grid voltage.

  • Page 117: Protective Parameters Setting For Italy

    User Manual 10 Operating the LCD Menu Exit from the Q(U) regulation mode Pout** 1%...20% when the power is below Pout Curve Curve type *V2i < V1i < V1s < V2s **Pin > Pout Fig. 10-9 Reactive Power Regulation Curve in “IT” Q(U) Mode 10.16.3 Protective Parameters Setting for Italy If the “Countries”...
  • Page 118 10 Operating the LCD Menu User Manual   Press to select parameter, Press to move cursor  right and Press to set the appropriate value. Confirm settings by pressing ENTER. Tab. 10-17 Italy Grid protection Recovery Value Parameter Explanation Inverter can start operating only when the grid frequency is below Fmax Fmax recovery.
  • Page 119 User Manual 10 Operating the LCD Menu Tab. 10-18 “IT” Multi-stage Protective Parameters Explanation Parameter Explanation Max-V. prote Over-voltage protection Ⅰ-Max-V. grid Stage Ⅰ Grid over-voltage (U>) Ⅰ-Max-V. time Stage Ⅰ Grid over-voltage (U>) tripping time Ⅱ-Max-V. grid Stage Ⅱ Grid over-voltage (U>>) Ⅱ-Max-V.

  • Page 120: 11  Viewing Pv Plant Information

    11 Viewing PV Plant Information After registering on the webpage www.solarinfobank.com, users can view PV plant information through the PC or smartphone. Users can also view PV plant information through the APP of SolarInfo Home installed into the smartphone. 11.1 SolarInfo Bank Connection 11.1.1 For Common User Connect the communication cable between router and inverter, and connect...

  • Page 121: For Professional User

    Scenario 2 The inverter is connected directly to The computer cannot visit SolarInfo Bank. Scenario 3 The inverter is connected directly to Contact service engineer of the net port. SUNGROW when the inverter and the PC are in different subnets.
  • Page 122 11 Viewing PV Plant Information User Manual Connect the communication cable. Set the DHCP to OFF and set the IP address, subnet mask, gateway, DNS1 and DNS2, as shown in the following figure. Acquire the IP, subnet mask, gateway, DNS1 and DNS2 from the network professional.
  • Page 123 User Manual 11 Viewing PV Plant Information IP address format:  First 9 digitals of the IP address: the same as the first 9 digitals of the inverter IP address. Example: if the inverter IP address is 192.168.001.100, you must input 192.168.001 for the first 9 digitals of computer IP address.

  • Page 124: Registration And Adding Pv Plant

    11 Viewing PV Plant Information User Manual 11.2 Registration and Adding PV Plant Open a browser and enter the URL www.solarinfobank.com to view the homepage of SolarInfo Bank. Register a new user by clicking “Register”. The registration interface as shown below will appear .User can select Home Users or Business Users according to real situation.
  • Page 125 User Manual 11 Viewing PV Plant Information Fill in the user information in the following interface. Click Expansion to fill in more information in the following interface. Then click Next. The Country, City, Monetary unit and Temperature unit can be selected from the drop-down list.
  • Page 126 11 Viewing PV Plant Information User Manual Fill in the plant information in the following interface. Click Expansion to fill in more information. Click Complete to finish the registration and click Previous to return to the previous page to modify information. If the Home Users is selected in step 2, the registration process is finished by now.
  • Page 127 User Manual 11 Viewing PV Plant Information Proceed as follows to fill in the Device Information if the Business Users is selected in step 2. The format of Serial number, Password, and Device name are the same as that in Step 4. Click Complete to finish the registration and click Previous to return to the precious page to modify information.

  • Page 128: Viewing Information Via The App

    OR code as shown on the right to download and install it. Search for SolarInfo Home in your APP Store to download and install it. For other smartphones (Android) The address for downloading SolarInfo Home APP is https://play.google.com/store/apps/details?id=com.sungrow.home.or...
  • Page 129 User Manual 11 Viewing PV Plant Information Http://www.solarinfobank.com/app/SolarInfoHome_v1.0.apk. You can also use your smartphone to scan the following OR codes to download and install it. Search for SolarInfo Home in your Play Store to download and install it. Search solarinfo home Download Install...

  • Page 130: Solarinfo Home App Online Registration

    11 Viewing PV Plant Information User Manual 11.3.2 SolarInfo Home APP Online Registration  The username password webpage www.solarinfobank.com are generic.  You can use the registration information of webpage to login APP only when the user type selects “Home Users” during registration. ...

  • Page 131: Visit In "Remote [Login]"Mode

    User Manual 11 Viewing PV Plant Information 11.3.3 Visit in “Remote [Login]”mode The SolarInfo Home APP can be visited only in “Remote [Login]”. In “Remote [Login]” mode, you need configure the inverter to connect it to your router and complete registration. Then you can log into SolarInfo Home via the Internet to view the device running information anywhere.

  • Page 132: 12  Appendix

    12 Appendix 12.1 Technical Data Parameters SG8KTL-EC SG10KTL-EC SG12KTL-EC Input Side Data Max. PV input power 8440 W 10550 W 12650 W Max. PV input voltage 1000 V Startup voltage 250 V Nominal input voltage 610 V MPP voltage range 200...900 V...
  • Page 133 User Manual 12 Appendix Parameters SG8KTL-EC SG10KTL-EC SG12KTL-EC Protection Anti-islanding protection short circuit protection Leakage current protection DC switch Integrated DC fuse Overvoltage protection System Max. efficiency 98.0% 98.0% 98.0% Max. European 97.5% 97.6% 97.5% efficiency Isolation method Transformerless Ingress...

  • Page 134: 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 135: 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. Contact Information Should you have any problems about this product, please contact us through the following information.
  • Page 136 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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