Sungrow SG3KTL-M User Manual
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Sungrow SG3KTL-M User Manual

Sungrow pv grid-connected inverter
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User Manual
SG3KTL-M/SG4KTL-M/
SG5KTL-M
PV Grid-Connected Inverter
SG3K_4K_5KTL-M-UEN-Ver15-201303
Version：1.5

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  • Page 1                     User Manual SG3KTL-M/SG4KTL-M/ SG5KTL-M PV Grid-Connected Inverter SG3K_4K_5KTL-M-UEN-Ver15-201303 Version：1.5...

  • Page 3: About This Manual

    About This Manual This manual applies to inverter SG3KTL-M, SG4KTL-M and SG5KTL-M. We hope that the device will meet your satisfaction when you use it with your PV plant system. The purpose of this manual is to provide detailed product information and instructions for the use of SG3KTL-M, SG4KTL-M and SG5KTL-M PV grid-connected inverter.
  • Page 4 Symbols Explanation This manual contains important safety and operational instructions that must be accurately understood and followed during the installation and maintenance of the equipment. To ensure optimum use of this manual, note the following explanations of symbols used. 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 Wait at least 10 minutes after disconnecting the inverter from the utility grid and the PV input before touching any inner live parts. Hot surface! Do not touch device hot surface when the device is running.

  • Page 6: Table Of Contents

    Contents About This Manual ................I  1  Safety Instructions ..............1    IMPORTANT SAFETY INSTRUCTIONS ................. 1 2  Product Introduction ............... 6      Intended Usage ...................... 6     Product Description ....................7   2.2.1 Product Appearance ....................7  ...
  • Page 7   6.4.1 AC Side Requirements ..................30   6.4.2 Assembling AC Cables to Connector .............. 33   6.4.3 AC Wiring Procedure ..................... 35     Connecting Inverter to PV Arrays ..............36   6.5.1 DC Input Configuration Mode................36   6.5.2 Assembling DC Cable to Connector ..............
  • Page 8   10.6.1 Running Record Checking ................65   10.6.2 Fault Record Checking ..................66     10.7 Language Setting ....................67     10.8 Time Setting ......................68     10.9 Energy Deviation Adjustment ................ 69     10.10 Load Default ......................70  ...

  • Page 9: Safety Instructions

    1 Safety Instructions IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS SG3KTL-M, SG4KTL-M and SG5KTL-M inverter are designed and tested in accordance with the international safety requirements. But as with all electrical and electronic equipments, certain precautions should be observed during installation, operation and maintenance work.
  • Page 10 1 Safety Instructions User Manual Commission the inverter Maintain and service the inverter Before Installation There is a risk of injury if the product is mishandled! Always follow the instructions in the manual when moving and positioning the inverter. The weight of the equipment can cause injuries, serious wounds, or bruising if mishandled.
  • Page 11 User Manual 1 Safety Instructions During Inverter Operation There is a risk of inverter’s damage or personal injury! Do not disconnect DC connectors while the inverter is under AC load! First de-energize the equipment from the dual power sources and then verify that there is no voltage existing.
  • Page 12 1 Safety Instructions User Manual There is a risk of inverter damage or personal 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, observe the following procedures. Disconnect the inverter from the utility grid side first and then PV arrays;...
  • Page 13 User Manual 1 Safety Instructions Others The selected country settings can be changed by qualified personnel only! Alternation of the country settings may cause a breach to the type-certificate marking All safety instructions, warning labels and nameplate on the inverter body: must be clearly visible;...

  • Page 14: Product Introduction

    2 Product Introduction 2.1 Intended Usage SG3KTL-M, SG4KTL-M and SG5KTL-M (They will be referred to as inverter hereinafter unless otherwise specified), single-phase without transformer string inverter, is a crucial unit between the PV arrays and the utility grid in the small-scaled PV power system.

  • Page 15: Product Description

    Inverter feeds power to utility grid via this AC terminal terminal. Mounting ear It is used to hang inverter onto the backplate. It is used to cool down the unit temperature Heat sink during operation. External fan used for air ventilation (SG3KTL-M without fan).

  • Page 16: Dimensions And Weight Of Inverter

    Type W(mm) H(mm) D(mm) Net weight(kg) SG3KTL-M/SG4KTL-M/ SG5KTL-M 2.2.3 LCD Display Panel As a human-computer interaction interface, LCD display panel comprises LED indicators, buttons and LCD display screen on inverter front panel. LEDs indicate the working status of the inverter...
  • Page 17 User Manual 2 Product Introduction Item Name Description They are “RUN” and “FAULT”. User can observe the two indicators to get the current state of inverter. Detailed indicators definition is shown in Tab. 2-2. LCD screen can display the current state of the inverter, LCD screen current running information, historical information and parameters to be set.

  • Page 18: Technical Description

    Fig. 2-5 Main Circuit Diagram of inverter The Main Circuit shown here is for SG4KTL-M and SG5KTL-M, there is only one string of PV arrays in input area 2 of SG3KTL-M. 2.3.2 Functions Description Inverter functions can be grouped as the following:...
  • Page 19 User Manual 2 Product Introduction Communication interface Standard RS485 interface for connecting other monitoring devices to the PV system is included. Protection functions include − short circuit protection − grounding insulation resistance surveillance − inverter output voltage surveillance − inverter output frequency surveillance −...

  • Page 20: Inverter Workflow

    3 Inverter Workflow The following diagram shows the inverter installation flow. Please follow these procedures. Start Unpacking and Inspection Read User Manual Install Immediately？ Storage Mounting Location Selection Moving Inverter Mounting the Inverter Electrical Connection Check before Commissioning Commissioning Troubleshooting Success? Fig. 3-1 Installation Flow Chart...
  • Page 21 User Manual 3 Inverter Workflow Tab. 3-1 Description of Installation Flow Order Description Remark Unpacking and inspection Section 4.1 Read this manual, especially the section on “safety Chapter 1 instruction” Store the inverter unit if not installed immediately Section 4.4 Choose the best installation site Section 5.1 Move the inverter to the installation site...

  • Page 22: Unpacking And Storage

    4 Unpacking and Storage 4.1 Unpacking and Inspection The unit is thoroughly tested and strictly inspected before delivery. Although sturdy packaging is used, damages may still occur during shipping. Check the packing for any visible damages upon receiving. Check the inner contents for damage after unpacking. Check the completeness of the delivery contents according to the supplied packing list.

  • Page 23: Identifying Inverter

    Nameplate is attached to the side of the inverter. It provides information on the type of inverter, the most important specifications, marks of certification institutions, website and serial number which are available and identified by Sungrow. Fig. 4-2 Nameplate of Inverter * Image shown here is for reference only.

  • Page 24: Delivery Contents

    4 Unpacking and Storage User Manual 4.3 Delivery Contents Fig. 4-3 Delivery Contents Item Description Inverter unit It is used to mount the inverter onto the wall Expansion bolts for fastening the backplate onto concrete wall Fastener set for installing the inverter onto metal frame PV input connectors, including positive and negative connectors DC connectors types: PV-CF-S 2,5-6 (+), PV-CM-S 2,5-6 (-) WiFi(Optional), for wireless communication...

  • Page 25: Storage Of Inverter

    If there is more than one inverter to be stored, the maximum layers for original paper packaging are five. After long-term storage or decommissioning, local installer or Service Dept. of Sungrow should perform a comprehensive test before connecting the inverter into PV power system.

  • Page 26: Securing Inverter To The Wall

    5 Securing Inverter to the Wall 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. 1. Take the load capacity of the wall into account. The wall (such as concrete wall or metal structure) should be strong enough to hold the weight of the inverter over a long period of time.
  • Page 27 User Manual 5 Securing Inverter to the Wall 5. Install the unit at eye level for easy button operation and display read. 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 5 Securing Inverter to the Wall User Manual 9. The ambient temperature should Max. ambient range from -25°C to 60°C. The power temperature: output will reduce when the ambient +60°C temperature exceeds 45°C. Min. ambient 10. The relative humidity of chosen temperature: installation site should never exceed -25°C...

  • Page 29: Moving Inverter To Installation Site

    User Manual 5 Securing Inverter to the Wall multiple inverters installation, position inverters side by side. For multi-row inverters installation, position the inverters in a staggered arrangement. 14. Do not install the inverter in a closed cabinet. Otherwise, the inverter will not operate normally.

  • Page 30: Installation Procedure

    5 Securing Inverter to the Wall User Manual 5.3 Installation Procedure Inverter is installed onto the wall by means of backplate in the packaging. If you don’t use the supplied backplate, you can drill holes according to its dimension below. Fig.
  • Page 31 User Manual 5 Securing Inverter to the Wall 4. Drill holes according to the marks you have made. In order to avoid electrical shock or other injury, inspect if there is electricity or plumbing installation before drilling holes. 5. Attach the backplate to the wall with the supplied expansion bolt set. The torque for fastening the nut should be at least 35 Nm.
  • Page 32 5 Securing Inverter to the Wall User Manual Optional Theftproof Function Put the shackle of the padlock through the mounted eye of the backplate and close the lock. The padlock should observe the following requirements: The theft protection is optional. You shall lock the inverter to the mounted eye plate of the backplate with a suitable (stainless, secured shackle and lock cylinder) padlock.
  • Page 33 User Manual 5 Securing Inverter to the Wall Fig. 5-3 Fasten the Backplate to Metal Frame Item Description Remark Hexagonal socket nut Spring washer ------ Washer ------ Hexagonal bolt M10*45 Metallic wall ------ Backplate ------ 6. Lift up the inverter above the backplate with the help of other people and then slide it down to make sure that the two recesses on the back of the inverter fit perfectly with the backplate, as Fig.
  • Page 34 5 Securing Inverter to the Wall User Manual The theft protection is optional. You shall lock the inverter to the mounted eye plate of the backplate with a suitable (stainless, secured shackle and lock cylinder) padlock. You must ensure that the key is available at all times for possible service purposes.

  • Page 35: Electrical Connection

    6 Electrical Connection 6.1 General Safety Instruction Once the inverter is firmly attached to the appropriate location, it can be connected into the PV power system. Prior to any electrical connection, keep in mind that the inverter has dual power supplies.

  • Page 36: Terminals Description

    Fig. 6-1 Terminals Description * Image shown here is for reference only. Actual product you receive may differ. Tab. 6-1 Terminals Specification Terminals SG3KTL-M SG4KTL-M /SG5KTL-M DC1: DC input area 1, one pair DC1: DC input area 1, one pair of input terminals.

  • Page 37: Overview Of Electrical Connection

    Remote PC the inverter. User can order it from Sungrow for wireless SolarInfo WiFi communication. SG3KTL-M: two input areas with two pairs of terminals. PV arrays SG4K/5KTL-M: two input areas with three pairs of terminals. Don’t use the WiFi and PC monitor simultaneously due to their different...

  • Page 38: Connecting Inverter To Ac Grid

    An independent two-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 Recommended of AC Circuit Breaker SG3KTL-M SG4KTL-M SG5KTL-M It is not allowed for several inverters to use the same circuit breaker.
  • Page 39 User Manual 6 Electrical Connection Requirements of Inverter Parallel Grid Connection If several inverters are operated in parallel connection with the grid, there are different requirements according to different scenarios. Scenario 1: Several inverters are operated in parallel connection with the single-phase Low Voltage grid.
  • Page 40 6 Electrical Connection User Manual Requirements: The sum of all inverters in parallel connection is limited to thirty. n(L1)+n(L2)+n(L3)≤30. Inverters should be distributed as equally as possible between the three phases at the low-voltage side with a maximum unbalanced load of 4.6kVA. The nominal voltage on the low-voltage side of transformer must meet the inverter output electrical specification.

  • Page 41: Assembling Ac Cables To Connector

    1% of the nominal power. Type Conductor Cross Section(mm2) Outer cable diameter(mm) Range Recommended Value Range Recommended Value SG3KTL-M 4…6 10…14 SG4KTL-M 4…6 10…14 SG5KTL-M 4…6 10…14 Withstand ambient temperature;...
  • Page 42 6 Electrical Connection User Manual Assembling Procedure Step 1: Unscrew the water-proof terminal. Step 2: Insert appropriately sized AC cables through the water-proof terminal. Step 3: Strip off insulation layer of all AC cables. The length of stripped insulation is approximately 10mm.

  • Page 43: Ac Wiring Procedure

    User Manual 6 Electrical Connection 6.4.3 AC Wiring Procedure Make sure that none of the DC or AC cables connected to the inverter is live before the electrical work. Danger to human life due to high voltage existing inside the inverter! Do not turn on the AC side circuit breaker until all inverter electrical connections have completed.

  • Page 44: Connecting Inverter To Pv Arrays

    (see “10.14.3 PV Configuration Mode Setting”). You may see technical information “String inverters’ work mode selection criteria and configuration” in the Sungrow website to decide the PV configuration mode for inverter There is a risk of inverter damage! The following requirements should be met, otherwise they will lead to loss of any or all warranty rights.
  • Page 45 Short-circuit Power Voltage Limit Current Limit Limit for Input for Each Input for Each Input Each Power Input Limit 1650W SG3KTL-M 3200W 550V 1650W 2200W SG4KTL-M 4300W 550V 2800W 2750W SG5KTL-M 5400W 550V 3500W To avoid input power unbalance of the two inputs or input...
  • Page 46 Prior to connecting inverter to PV inputs, following specifications should be observed: Total DC Input Open-circuit Voltage Short-circuit Type Power Limit Limit for Each Input Current Limit SG3KTL-M 3200W 550V SG4KTL-M 4300W 550V SG5KTL-M 5400W 550V To avoid input power unbalance of the two inputs or input...

  • Page 47: Assembling Dc Cable To Connector

    DC Cable Requirements Type Cross-Section Outer Max. Max. Withstand Area Range Cable Withstand Current Diameters Voltage SG3KTL-M/ Same with SG4KTL-M/ 2.5...6mm 5…8mm 550 V short-circuit SG5KTL-M current. DC Connector Assembling Procedure: Unscrew the water-proof terminal in the following direction. Step 1 Strip off insulation layer of DC cable.
  • Page 48 6 Electrical Connection User Manual Push down and click the spring clamp. Step 5 Insert and click the cable clamp into the connector. Step 6 Tighten the water-proof terminal with a torque ≥ 2N m via spanner (15). Step 7 For further assembly and connection instruction, please visit the webpage of the device manufacturer.

  • Page 49: Dc Wiring Procedure

    User Manual 6 Electrical Connection 6.5.3 DC Wiring Procedure Make sure that none of the DC or AC cables connected to the inverter is live before the electrical work. Connect the inverter to PV array as the following procedures: Rotate the optional DC switch at the bottom to the “OFF” position. Step 1 Check the connection cable of PV string for the correct polarity and that the Step 2...
  • Page 50 6 Electrical Connection User Manual * Image shown here is for reference only. Actual product you receive may differ. Connect the other two PV strings with the same procedures if necessary. Step 4 Unused DC terminals should be sealed.

  • Page 51: Grounding Of Inverter

    User Manual 6 Electrical Connection 6.6 Grounding of Inverter Because of the transform-less design of the inverter, DC positive pole and DC negative pole are not permitted to be grounded. A permanent destroy to the inverter may follows if otherwise. 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 52: Communication Cable Connection

    6.7.1 Communication System Inverter provides multiple communication interfaces-RS485, WiFi and 4 dry contacts (optional, you may order it from Sungrow), and various communication methods. Where there is only one inverter, the communication connection between the inverter and PC can be established via WiFi or a RS485 cable.
  • Page 53 For Single Inverter Specification Communication via WiFi only Communication via WiFi and dry contacts Communication via RS485 only Communication via dry contacts and RS485 *Communication via dry contacts is an optional function. You may order and purchase them from Sungrow.
  • Page 54 Shielding layer is grounded green If the communication system is equipped with SolarInfo Logger, inverters may be dispatched by the power grid via dry contacts or remotely monitored via SolarInfo Bank. You may order SolarInfo Logger and/or SolarInfo Bank from the Sungrow.

  • Page 55: Communication Connection

    Screw the adaptor to RS485/WiFi connector with appropriate torque. Step 2 Connect SolarInfo Wireless or SolarInfo WiFi to the 5-pin terminal by Step 3 plugging-in and tightening the cable gland. You may order and purchase SolarInfo Wireless or SolarInfo WiFi from Sungrow.
  • Page 56 6 Electrical Connection User Manual RS485 connection to 5-pin terminal The 5 pins of the terminal are defined as below. Connector assembling and connecting procedures: Unscrew the water-proof terminal. Step 1 Lead the twist-pair shielding cable through cable gland. Step 2 Weld the cables to the pins.
  • Page 57 User Manual 6 Electrical Connection RS485 connection on RJ45 terminal Insert the RJ45 plug into the front plug connector until it makes a clicking Step 1 sound, install the plastic rings then tighten the cable gland with appropriate torque. Insert connector of one cable end into RS485 5-pin terminal on the bottom Step 2 of the inverter.
  • Page 58 Communication via dry contacts is an optional function. You may order and purchase them from Sungrow. When short-circuit two specific pins, the inverter will decrease the power output to corresponding percentage. The pins’ function definition for power limitation is shown below, e.g.

  • Page 59: Commissioning

    Commissioning 7.1 Verify before Commissioning Before starting up the inverter, you should check the following items. 1. Inverter unit is accessible for operation, maintenance and service. 2. Re-check whether the inverter is firmly secured to the wall. 3. Room for ventilation is provided for one inverter or more than one inverter. 4.
  • Page 60 7 Commissioning User Manual If inverter’s commissioning fails, “FAULT” indicator will be lit. “ ” in the LCD screen will display the type of fault. The fault must be removed before repeating from step1 to step 4. If inverter‘s commissioning succeeds, “RUN” indicator will be lit. “ ”...

  • Page 61: 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. Proceed as follows to disconnect the inverter from the AC and DC power source. Lethal voltages or damages to the inverter will follow if otherwise. Disconnect the external AC circuit breaker and prevent it from reconnecting.

  • Page 62: 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 6 for the inverter disconnection of all cables in reverse steps. There is a risk of burn injuries and electric shock! Wait at least 10 minutes after disconnecting the inverter from the utility grid and the PV input before touching any inner live parts.

  • Page 63: Troubleshooting And Maintenance

    4. Check whether the voltage of DC input exceeds the inverter start-up voltage. 5. If all above conditions are OK, please contact Sungrow. 1. A fault is not removed yet. “Fault” indicator is 2. Perform troubleshooting according to the fault type in LCD lit.
  • Page 64 3. If the grid voltage is within the The grid voltage exceeds permissible range, contact Sungrow the allowable maximum Vac-high Service Dept.. threshold of the installation country. 1. Check the frequency of the grid.
  • Page 65 PV arrays. 2. Check the grounding/PE connection Earth-ft Earth fault. of the inverter. 3. Contact Sungrow Service Dept. for solution. 1. Rotate the optional DC switch to the “OFF” position immediately. 2. Measure the short-circuit current of PV1 string again. Decrease the number...
  • Page 66 Wait a moment for inverter The AC output current is Iac-high recovery. too high. If the fault occurs repeatedly, contact Sungrow Service Dept. for solution. Contact Sungrow Service Dept. for Fan-flt Fan’s defect. solution. DC injection of inverter Contact Sungrow Service Dept. for...

  • Page 67: Maintenance

    User Manual 9 Troubleshooting and Maintenance 9.3 Maintenance 9.3.1 Routine Maintenance Items Methods Period Save the running data, parameters and Save data Once a month log to a disk or a file. Visual check any damage or deformation of the inverter. Check any abnormal noise during the running of the inverter.

  • Page 68: Fan Cleaning And Replacement

    9 Troubleshooting and Maintenance User Manual 9.3.2 Fan Cleaning and Replacement Disconnect the inverter from the grid first and then PV arrays before any maintenance work. Lethal voltage still exists in the inverter. Please wait at least ten minutes and then perform maintenance work. Fans’...

  • Page 69: Operation Of Lcd Menu

    10 Operation of LCD Menu 10.1 Button Function Inverter offers two buttons for user to look up the running information and configure parameters. User should know the button function and operation before any work on the inverter. Tab. 10-1 Description of Button Function Button Operation Description...

  • Page 70: Overview Of Lcd Menu

    10 Operation of LCD Menu User Manual 10.2 Overview of LCD Menu Fig. 10-1 Menu Tree...

  • Page 71: The Default Screen

    User Manual 10 Operation of LCD Menu 10.3 The Default Screen The LCD is initialized when the inverter is energized delay 5 seconds and then enters into the default menu. The default screen displays basic running information. “P-ac” means the current output power of the inverter.

  • Page 72: Current Running Information Checking

    10 Operation of LCD Menu User Manual 10.5 Current Running Information Checking 1. Long press “ENTER/►” to enter into the general control screen. ▼ to view the current 2. Short press “ESC/ ” ▼ to turn running information. Short press “ESC/ ” pages.

  • Page 73: Historical Information Checking

    User Manual 10 Operation of LCD Menu 10.6 Historical Information Checking 10.6.1 Running Record Checking Inverter archives the running information every fifteen minutes during inverter operation. User can view the historical running records by the following procedures. 1. Long press “ENTER/►” to enter into the general P(%) control screen.

  • Page 74: Fault Record Checking

    10 Operation of LCD Menu User Manual 10.6.2 Fault Record Checking Inverter archives the types of malfunctions and the duration of malfunctions during inverter operation. User can view the historical fault records by the following procedures. 1. Long press “ENTER/►” to enter into the P(%) general control screen.

  • Page 75: Language Setting

    User Manual 10 Operation of LCD Menu 10.7 Language Setting Input the correct password of 1111 to set the inverters' parameters. There are system parameters, running parameters, protective parameters and communication parameters to be set. Inverter supports four different languages: English, German, French and Italian. Language can be configured as follows.

  • Page 76: Time Setting

    10 Operation of LCD Menu User Manual 10.8 Time Setting Deviation from the local time will directly affect the data logging. Perform the “set time” operation if necessary. 1. Long press “ENTER/►” to enter into the P(%) general control screen. 4.000 kW P-ac 15.6 kWh...

  • Page 77: Energy Deviation Adjustment

    User Manual 10 Operation of LCD Menu 10.9 Energy Deviation Adjustment The energy yields displayed by the LCD panel are indicative only. For the actual yields, please refer to the electric energy meter. 1. Long press “ENTER/►” to enter into the general P(%) control screen.

  • Page 78: Load Default

    10 Operation of LCD Menu User Manual 10.10 Load Default If you perform the “Load default” operation, all running information and historical information will be unrecoverable cleared. 1. Long press “ENTER/►” to enter into the general P(%) control screen. 4.000 kW P-ac 15.6 kWh E-day...

  • Page 79: Firmware Version Checking

    User Manual 10 Operation of LCD Menu 10.11 Firmware Version Checking User can only view the firmware version. 1. Long press “ENTER/►” to enter into the general P(%) control screen. 4.000 kW P-ac 15.6 kWh E-day E-tot 4976 kWh State 2009/11/18 18:35 ▼...

  • Page 80: Running Parameters Setting

    10 Operation of LCD Menu User Manual 10.12 Running Parameters Setting 1. Long press “ENTER/►” to enter into the P(%) general control screen. 4.000 kW P-ac 15.6 kWh E-day E-tot 4976 kWh State 2009/11/18 18:35 ▼ 2. Short press “ESC/ ” to navigate the arrow-pointer to “Set-param”.

  • Page 81: Protective Parameters Setting

    ▼ 6. Short press “ESC/ ” to navigate the arrow-pointer to “Pro-param”. 7. Long press “ENTER/►” to enter into its sub-screen. 8. Enquire Sungrow or the dealer about the Pro-param password. Password: 000000 9. Each abbreviation represents a protective parameter.
  • Page 82 10 Operation of LCD Menu User Manual 10. If you selected “Other”, Long press “ENTER/►” Vgrid-max 260V to enter into its sub-screen to set the protective Vgrid-min 195V parameter. Fgrid-max 50.2Hz Fgrid-min 49.7Hz Tab. 10-2 Description of the Protective Parameters Code Full Name Code...

  • Page 83: Communication Parameters Setting

    User Manual 10 Operation of LCD Menu 10.14 Communication Parameters Setting The inverter can be remotely monitored and controlled. The communication parameters of the inverter should be configured before connecting to upper computer as follows: 10.14.1 Address Setting 1. Long Press “ENTER/►” to enter into the general P(%) control screen.

  • Page 84: Wireless Address Setting

    10 Operation of LCD Menu User Manual 10.14.2 Wireless Address Setting 1. WiFi configuration icon will appear on the LCD screen automatically 30s after the LCD is energized. 2. If you succeed in configuring WiFi within 15 minutes, WiFi will automatically connect to the Router selected while the configuration icon will disappear.
  • Page 85 User Manual 10 Operation of LCD Menu ▼ 10. Short press “ESC/ ” to navigate the arrow-pointer to “Com-param”. 11. Long press “ENTER/►” to enter into its sub-screen. ▼ 12. Short press “ESC/ ” to navigate the arrow-pointer to “RF Address”. 13.

  • Page 86: Pv Configuration Mode Setting

    10 Operation of LCD Menu User Manual 10.14.3 PV Configuration Mode Setting 1. Long Press “ENTER/►” to enter into the general P(%) control screen. 4.000 kW P-ac 15.6 kWh E-day E-tot 4976 kWh State 2009/11/18 18:35 ▼ Short press “ESC/ ” navigate arrow-pointer to “Set-param”.

  • Page 87: Inverter Start/Stop

    User Manual 10 Operation of LCD Menu 10.15 Inverter Start/Stop Starting the Inverter 1. Long press “ENTER/►” to enter into the general P(%) control screen. 4.000 kW P-ac 15.6 kWh E-day E-tot 4976 kWh State 2009/11/18 18:35 ▼ Short press “ESC/ ”...

  • Page 88: Appendix

    11 Appendix 11.1 Technical Data 11.1.1 Electrical Specifications Technical Specifications SG3KTL-M SG4KTL-M SG5KTL-M Input Side Data Max. PV input voltage 550V Startup voltage 150V Nominal input voltage 370V MPP voltage range 125…500V MPP voltage range for nominal 160…500V 170…500V 200…500V...
  • Page 89 Technical Specifications SG3KTL-M SG4KTL-M SG5KTL-M *Valid only when the Pro-param on the LCD display is set as DE Protection Anti-islanding protection reverse connection protection AC short circuit protection Leakage current protection DC switch Optional DC fuse Overvoltage protection Varistors System Data Max.

  • Page 90: Pv Input Specification

    Type Area Total DC Open-circuit Short-circuit Power Input Voltage Limit Current Limit Limit for Power for Each Input Each Limit Input 1650W SG3KTL-M 3200W 550V 1650W 2200W SG4KTL-M 4300W 550V 2800W 2750W SG5KTL-M 5400W 550V 3500W 11.1.3 Temperature Derating Curve...

  • Page 91: Exclusion Of Liability

    Unforeseen calamity or force majeure The use of supplied software produced by Sungrow Power Supply Co., Ltd. is subject to the following conditions: Sungrow Power Supply Co., Ltd. assumes no liability for direct or indirect damages arising from the use of SolarInfo software.

  • Page 92: About Us

    The power rating of Sungrow products covers from several hundred watt to large mega-watt systems. The pursuit 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 questions or queries about this product, please contact us through the following information.
  • Page 93 Specifications are subject to changes without advance notice.

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