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Sungrow SG1100UD System Manual

Sungrow SG1100UD System Manual

Pv grid-connected inverter
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System Manual
PV Grid-Connected Inverter
SG1100UD/SG1100UD-20/SG3300UD/SG3300UD-20/
SG4400UD/SG4400UD-20
SG1100UD/
SG1100UD-20/SG3300UD/
SG3300UD-20/SG4400UD/
SG4400UD-20PV Grid-Connected
InverterSystem ManualSG1100_
3300_4400UD–20-SEN-Ver24-
202401M-D-000577
SG1100_3300_4400UD–20-SEN-Ver24-202401

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Summary of Contents for Sungrow SG1100UD

  • Page 1 System Manual PV Grid-Connected Inverter SG1100UD/SG1100UD-20/SG3300UD/SG3300UD-20/ SG4400UD/SG4400UD-20 SG1100UD/ SG1100UD-20/SG3300UD/ SG3300UD-20/SG4400UD/ SG4400UD-20PV Grid-Connected InverterSystem ManualSG1100_ 3300_4400UD–20-SEN-Ver24- 202401M-D-000577 SG1100_3300_4400UD–20-SEN-Ver24-202401...

  • Page 3: All Rights Reserved

    Software Licenses • It is prohibited to use data contained in firmware or software developed by SUNGROW, in part or in full, for commercial purposes by any means. • It is prohibited to perform reverse engineering, cracking, or any other operations that...

  • Page 5: Table Of Contents

    Contents All Rights Reserved .....................I 1 About This Manual ...................1 1.1 Validity......................1 1.2 Target Group ....................1 1.3 How to Use This Manual .................1 1.4 Symbol Explanations ..................2 1.5 Explanation of Description................2 2 Safety Instructions ....................3 2.1 Unpacking and Inspection ................4 2.2 Hoisting and Transportation................5 2.3 Electrical Connection ..................5 2.4 Operation.......................7...
  • Page 6 5.2.1 Scope of Delivery ................19 5.2.2 Product Inspection ................20 5.3 Installation Environment Requirements ............20 5.3.1 Installation Site ...................20 5.3.2 Foundation ..................20 5.3.3 Space Requirements................21 5.4 Hoisting and Fixing ..................23 5.4.1 Preparation Before Hoisting ..............23 5.4.2 Crane and Sling Requirements.............23 5.4.3 During Hoisting ...................24 5.4.4 Fixing ....................26 6 Electrical Connection ..................27...
  • Page 7 6.8.1 Inspection ..................47 6.8.2 Locking Cabinet Door ................48 7 Powering up and Powering down ..............49 7.1 Safety Instructions ..................49 7.2 Powering Up Operations ................49 7.2.1 Removing Film on Product..............49 7.2.2 Removing Pressure Relief Screw ............50 7.2.3 Installing Fuse in AC SPD ..............50 7.3 Inspection Before Powering Up..............51 7.3.1 Inverter....................51 7.3.2 PV Array.....................51...
  • Page 8 9.4 Login ......................60 9.4.1 Requirements ..................60 9.4.2 Login Steps ..................61 9.5 Home ......................64 9.6 Run Information....................66 9.7 Records .......................67 9.8 More......................69 9.8.1 Boot/Shutdown ...................69 9.8.2 Modify Password.................70 10 LCD Menu Operation (Optional) ..............71 10.1 LCD TouchScreen ..................71 10.2 Default Screen ...................71 10.2.1 Initialization..................71 10.2.2 Default Screen Introduction..............71 10.2.3 Backlight and Screensaver..............72...
  • Page 9 12.3.3.2 Indelible Traces ...............96 12.3.3.3 Broken Primer .................96 12.3.4 Checking Door Locks and Hinges ............97 12.3.5 Checking Sealing Strips..............97 12.4 Replacing Fuse ..................97 12.4.1 Replacing DC Side Fuse..............98 13 Appendix .......................99 13.1 Technical Parameters .................99 13.2 Tightening Torques ................... 104 13.3 Quality Assurance ..................

  • Page 11: About This Manual

    MV grid-connected inverter. Validity This manual applies to the following models: • SG1100UD / SG1100UD-20 • SG3300UD / SG3300UD-20 • SG4400UD / SG4400UD-20 Unless otherwise specified, this manual takes SG4400UD as an example to briefly introduce the installation and operation methods of the product.

  • Page 12: Symbol Explanations

    1 About This Manual System Manual version upgrade, and the actual product shall prevail. For any questions, please contact Sungrow Customer Service. Symbol Explanations To ensure the safety of the users and their properties when they use the product and to make sure that the product is used optimally and efficiently, this manual provides users with the relevant safety information which is marked by the following symbols.

  • Page 13: Safety Instructions

    Level 6 or stronger winds. SUNGROW shall not be held liable for any damage to the device due to force majeure, such as...

  • Page 14: Unpacking And Inspection

    Perform operations considering ac- tual onsite conditions. • SUNGROW shall not be held liable for any damage caused by violation of gen- eral safety operation requirements, general safety standards, or any safety in- struction in this manual.

  • Page 15: Hoisting And Transportation

    System Manual 2 Safety Instructions Hoisting and Transportation Risk of personal injury or device damage due to incorrect operation! • Follow the procedure of work of heights when walking on the top of the product. • All hoisting and transportation must comply with the relevant codes and regula- tions of the nation/region where the project is located.
  • Page 16 2 Safety Instructions System Manual PV modules will generate lethal high voltage when exposed to sunlight. • Operators must wear proper personal protective equipment during electrical connections. • Before performing an electrical connection, be sure to disconnect the PVS and use measuring equipment to ensure that cables are voltage-free.

  • Page 17: Operation

    System Manual 2 Safety Instructions Operation When the product is working, • It is strictly forbidden to touch the live parts of the product. Otherwise, an elec- tric shock may occur. • It is strictly prohibited to disassemble any parts of the product. Otherwise, an electric shock may occur.
  • Page 18 To avoid the risk of electric shock, do not perform any other maintenance opera- tions beyond those described in this manual. If necessary, contact SUNGROW for maintenance. Otherwise, the losses caused are not covered by the warranty.

  • Page 19: Disposal

    System Manual 2 Safety Instructions Disposal Please scrap the inverter in accordance with relevant local regulations and stand- ards to avoid property losses or casualties.

  • Page 20: Product Description

    Product Description Product Introduction In large and medium-sized utility power plant systems, the PV grid-connected inverter, which contains multiple PV inverter units, transformers, and other equipment, provides a sound solution to convert the DC power generated by PV arrays into AC power, and feed it into the grid.
  • Page 21 The figure shows Inverter Units 1–4 from left to right. * The figure is for illustration only. The actual product you have received may differ. Model Quantity SG1100UD / SG1100UD-20 One inverter unit SG3300UD / SG3300UD-20 Three inverter units SG4400UD / SG4400UD-20...

  • Page 22: Main Internal Equipment

    3 Product Description System Manual Main Internal Equipment 3.3.1 Appearance of Inverter Unit Appearance of Inverter Unit Version 1 figure 3-1 Inverter Unit Appearance of Inverter Unit Version 2 (Optional) figure 3-2 Inverter Unit with LCD Name Top air inlet Indicator panel Start/Stop knob...

  • Page 23: Internal Structure Of Inverter Unit

    System Manual 3 Product Description Name Emergency stop button. In case of emergency, press this button to open the AC circuit breaker and DC load switch. Base * is optional. LED Indicator table 3-1 Indicator Status Description Description Color Status Steady on The inverter is in grid-connected operation.

  • Page 24: Symbol On Products

    3 Product Description System Manual * The figure is for reference only. And the actual product received shall prevail. Description Name Disconnect it before maintenance and repair. Maintenance switch QS2 Control the on/off of the DC side circuits of the DC load switch QS1 inverter.
  • Page 25 System Manual 3 Product Description Explanation Marks The temperature here is beyond the acceptable range for the hu- man body, please do not touch it arbitrarily to avoid personal injury. Firmly ground the protective ground terminal to ensure the safety of operators.

  • Page 26: Transport And Storage

    Transport and Storage Precautions Failure to transport and store the product in accordance with the requirements in this manual may invalidate the warranty. Transportation Requirements • Choose appropriate means of transportation according to the size and weight of the product. •...

  • Page 27: Protection During Storage

    • For a product shut down/stored for over six months, inspect its electrical components (IGBT module, switch, etc.), and take dehumidifcation and dedusting mesaures for the whole product. For detailed operation, please contact SUNGROW.

  • Page 28: Mechanical Mounting

    If there are prob- lems with the above inspection items, do not install the product and contact SUNGROW in time.

  • Page 29: Inspection Before Installation

    System Manual 5 Mechanical Mounting Improper hoisting may cause personal injury! • It is strictly prohibited to stand within 5m - 10m outside the operating area (i.e., under the boom and the hoisted machine) to avoid casualties. • Only professional personnel can operate the product, and be sure to wear per- sonal protective equipment when operating.

  • Page 30: Product Inspection

    • Visually check the product for any damage. If any problems are found or there is any question, please contact the forwarding company or SUNGROW. Only install the product when it is complete and intact. Before installation, ensure that: •...

  • Page 31: Space Requirements

    System Manual 5 Mechanical Mounting • Cabling should be considered when building the foundation. • Pre-bury the threading pipe at the bottom of the foundation according to the location of the cable inlet holes at the bottom of the product. •...
  • Page 32 5 Mechanical Mounting System Manual Arranged in rows (face the same direction) Space Requirements Mark ≥8000mm ≥2000mm Arranged in rows (face opposite directions) 1 Space Requirements Mark ≥5000mm ≥2000mm...

  • Page 33: Hoisting And Fixing

    Mark ≥5000mm ≥2000mm For arrangement modes and space requirements that are not mentioned in this manual, please confirm with SUNGROW. Hoisting and Fixing 5.4.1 Preparation Before Hoisting Professional cranes must be used and must be operated by qualified personnel. Otherwise, personal injury or product damage may occur! •...

  • Page 34: During Hoisting

    Two types of slings are used. Sling 1 is used to connect the lifting beam to the platform, and Sling 2 is used to connect the hook of the crane to the beam. table 5-1 SG1100UD×2~SG1100UD×4 Sling Requirements Item Requirement Four slings shall all measure 4.5m in length, and each has a lifting...
  • Page 35 5 Mechanical Mounting • Avoid scratching the product during hoisting. figure 5-2 SG1100UD Hoisting Diagram figure 5-3 SG4400UD Hoisting Diagram When the cabinet is hoisted in place, remove the wooden blocks on both sides of the cabinet to ensure fine air intake of the whole product.

  • Page 36: Fixing

    5 Mechanical Mounting System Manual Be sure to hoist the product smoothly and evenly to avoid collision and vibration. Do not turn the product upside down, nor hoist it for a long time. Otherwise, per- sonal injury or product damage may occur! 5.4.4 Fixing Hoist the product to the intended location and fix it.

  • Page 37: Electrical Connection

    Electrical Connection Precautions • Before electrical connections, please make sure that the inverter is not dam- aged, otherwise, it may cause danger! • Before electrical connections, please make sure that the product switch and all switches connected to the product are set to "OFF", and use measuring equip- ment to ensure that there is no voltage at the connection.
  • Page 38 6 Electrical Connection System Manual Damage to the device caused by incorrect wiring is not covered by the warranty. • Electrical connection must be performed by professional personnel who wear personal protective equipment. • The cables used in the PV generation system must be firmly connected, in good condition, and well insulated to appropriate sizes.

  • Page 39: Wiring Overview

    System Manual 6 Electrical Connection Wiring Overview Power cable Communication cable 1- DC cabinet 3– AC cabinet 2– Module cabinet table 6-1 Interface Description Description Recommended Cable Specifications DC input port 400 mm at most AC output port 70 mm —...

  • Page 40: Open The Product Door

    6 Electrical Connection System Manual Heat gun Torque screwdriver Wire stripper Hydraulic clamp Torque wrench Multimeter Electric drill Screwdriver Protective gloves Goggles Insulated shoes Protective clothing Hard hat 6.3.2 Open the Product Door Step 1 Open the cabinet door. Step 2 Fix the doors of the inverter unit cabinet. Step 3 Remove the protective cover of the wiring area.

  • Page 41: Cables

    System Manual 6 Electrical Connection - - End 6.3.3 Cables The cables must meet the following requirements: • The current carrying capacity of the cable should meet the requirements. Factors affect- ing the current-carrying capacity of a conductor include but are not limited to: –...

  • Page 42: Cable Inlet Preparation

    6 Electrical Connection System Manual Description DC input cable inlet Communication cable inlet AC output cable inlet 6.3.4.1 Cable Inlet Preparation Step 1 Identify the marks of hole positions. Step 2 Drill holes at the marks.
  • Page 43 System Manual 6 Electrical Connection Step 3 Lead cables into the cabinet through the holes, then secure the cables. Cables can be se- cured in different ways, usually with fireproof mud and waterproof connectors. Generally, you can choose one of them to secure the cables on site. The figure below shows how to secure the cables with fireproof mud.

  • Page 44: Ground Connection

    SUNGROW. * Waterproof connectors and fireproof mud used to secure the cables are optional. Please contact SUNGROW if you have the need. After wiring, seal off the cable inlet holes by filling the gaps around the cables with fireproof/waterproof materials such as fireproof mud to prevent the ingress of for- eign matter or moisture, thus avoiding affecting the product's long-term operation.

  • Page 45: Overview

    AC cables, DC cables, and communication cables. • Both grounding terminals on the side of the product must be connected to the protective grounding points reliably. SUNGROW shall not be held liable for any damage caused by the violation. Note the following during ground connection: •...

  • Page 46: Grounding Cable

    6 Electrical Connection System Manual 6.4.3 Grounding Cable Use 50 mm ~ 95mm grounding cables to reliably connect the two grounding terminals to the grounding points of the system. 1: Heat shrink tubing 2: OT/DT terminal DC Input Connection The PV string will generate lethal high voltage when exposed to sunlight. Respect all safety instructions listed in relevant documents about PV strings.

  • Page 47: Overview

    System Manual 6 Electrical Connection • Make sure the PV array is well insulated to the ground before connecting it to the inverter. • Make sure the maximum DC voltage and the maximum short circuit current of any string never exceed inverter permitted values specified in "Technical Parameters".

  • Page 48: Installing Insulation Board Before Connection

    6 Electrical Connection System Manual Floating Grounding figure 6-6 7–way DC Input figure 6-7 7–way DC input With MPLC * The wiring area is subject to the actual product. Mark Description DC side positive cable connection area DC side negative cable connection area φ17 Copper bar diameter Wiring hole...

  • Page 49: Procedure

    System Manual 6 Electrical Connection Step 3 Install the negative and positive DC cables. Step 4 Move the insulation board upward to its original position and install the two fixing screws. - - End * The figure is for reference only. The product received may differ. 6.5.3 Procedure Step 1 Lead the cable into the wiring area through the inlet hole, and mark the cable polarity.
  • Page 50 6 Electrical Connection System Manual Step 4 Secure the OT/DT terminal to the copper bar by bolts. • If copper wires are used, fasten the bolt assembly as shown below. figure 6-8 Single Hole Copper Wire Connection • If aluminum wires are used, fasten the bolt assembly as shown below. figure 6-9 Single Hole Aluminum Wire Connection When performing DC wiring, make sure the cables remain vertical to the ground without in- clination, to prevent the copper bar from getting deformed due to stress in other directions.

  • Page 51: Securing Cables

    System Manual 6 Electrical Connection Step 5 Pull the cable back slightly after wiring to ensure that the cable is long enough. • Ensure that the selected terminal can directly contact the copper bar. If there are any problems, contact the terminal manufacturer. •...

  • Page 52: Ac Side Connection

    6 Electrical Connection System Manual * The figure is for illustration only and the actual product on site may be different. Description Cable Waterproof connector * Cable clip * Cables can be secured in different ways. In this figure, cables are secured with waterproof connectors, which is for illustration only.

  • Page 53: Ac Connection Area At The Bottom

    System Manual 6 Electrical Connection 6.6.2 AC Connection Area at the Bottom AC Connection Area Procedure Step 1 Lead the cable into the wiring area through the inlet hole, and mark the cable polarity. The three-phase wires (Phase A, Phase B, and Phase C) of a cable should be led through the same inlet hole.
  • Page 54 Fix the AC copper bars to the transformer side copper bars by fitting the fasteners in the proper order, as shown below. • Use M12 bolts for connection on the SG1100UD inverter. The recommended torque is 60–70N.m. • Use M16 bolts for connection on the SG1100UD×2~SG1100UD×4 inverters.

  • Page 55: Communication Wiring

    System Manual 6 Electrical Connection Name Name AC copper bar Copper bar of the Spring washer transformer Flat washer Bolt Communication Wiring The inverter communication wiring is implemented within the bottom Smart Unit Board. The Smart Unit Board can be configured with an ISO100 insulation monitoring device. Composition of Smart Unit Board figure 6-11 Typical Composition of Smart Unit Board...

  • Page 56: Rs485 Communication

    6 Electrical Connection System Manual figure 6-12 Composition of Smart Unit Board with ISO100 Insulation Monitoring Device table 6-2 Composition of Smart Unit Board Description Mark Ethernet port RS485 port Smart Unit switch QS3 ISO100 insulation monitoring device 6.7.1 RS485 Communication table 6-3 Port Mark and Definition (Example) Marks Plug-compatible Devices...

  • Page 57: Ethernet Communication

    System Manual 6 Electrical Connection Step 4 Loosen the screwdriver, the metal plate returns and compresses the cable. * The figure is for reference only. The product received may differ. - - End 6.7.2 Ethernet Communication Overview Ethernet communication port located at the lower part of the main inverter unit, as indicated by A in the following figure.

  • Page 58: Locking Cabinet Door

    6 Electrical Connection System Manual When the wiring is completed, check for the wiring correctness and then seal the gap between cables and inlet and outlet holes with fireproof/waterproof materials such as fireproof mud to prevent foreign matter or moisture from entering and af- fecting the long-term normal operation of the inverter.

  • Page 59: Powering Up And Powering Down

    Powering up and Powering down Safety Instructions When the product is working: • It is strictly forbidden to touch the live parts of the product. Otherwise, an elec- tric shock may occur. • It is strictly prohibited to disassemble any parts of the product. Otherwise, an electric shock may occur.

  • Page 60: Removing Pressure Relief Screw

    7 Powering up and Powering down System Manual 7.2.2 Removing Pressure Relief Screw Be sure to remove the pressure relief screws at the bottom of the inverter unit(marked as A in the figure below) before the product is officially put into operation. 7.2.3 Installing Fuse in AC SPD Step 1 Open the fuse holder in the AC side.

  • Page 61: Inspection Before Powering Up

    System Manual 7 Powering up and Powering down Inspection Before Powering Up 7.3.1 Inverter • Ensure that the AC and DC switches and all internal miniature circuit breakers are disconnected. • Check and ensure that the emergency stop button is released . •...

  • Page 62: Powering Down Operations

    7 Powering up and Powering down System Manual Step 4 Turn on the output switch of the upstream PVS. Step 5 Turn on the DC load switch QS1 inside all inverter units, and close the cabinet doors. Step 6 Rotate the “Start/Stop” knob to the “Start” position. Step 7 Start the inverter on the Web page, and the inverter begins to enter the grid-connected oper- ation state.
  • Page 63 System Manual 7 Powering up and Powering down Step 4 Open the AC cabinet door, check and ensure that the AC circuit breakers QF1 of all inverter units are all in the open state. Step 5 Turn off the maintenance switch QS2 of all inverter units, and the maintenance switch QS3 at the bottom of the inverter unit.

  • Page 64: M On Web

    O&M on WEB It is recommended to perform O&M on the WEB interface after the device is powered on. Communications Diagram The wiring between the internal devices of the MV grid-connected inverter has been com- pleted before delivery. Connect the PC with the switch inside the power distribution cabinet with the CAT-5e cable on site.

  • Page 65: Preparation Before Login

    SG-xxx (xxx represents the device SN), and enter the password. The password is ESPWifi@123. Step 2 Open a browser on the mobile phone and enter the address (11.11.11.1) or domain (sungrow. net) to access the WEB interface. - - End...

  • Page 66: Login Steps

    8 O&M on WEB System Manual Login Steps Step 1 Enter the server address to enter the homepage as a visitor by default. • NET1 port, URL: 12.12.12.12. • NET2 port, URL: 14.14.14.14. Mobile device: URL:11.11.11.1. Step 2 Click and select the desired language in the upper right corner of the interface. Step 3 Click to enter the login interface.

  • Page 67: Viewing Fault Information

    System Manual 8 O&M on WEB Description Language switching options User center 8.4.2 Viewing Fault Information Step 1 Click “Overview” → “General Information” on the left navigation bar to enter the homepage. Step 2 Click in the upper-right corner of the interface to view information such as the name and time of the fault event.

  • Page 68: Setting Operation Parameters

    8 O&M on WEB System Manual 8.4.6 Setting Operation Parameters Step 1 Click “Device Monitoring” in the left navigation bar. Step 2 Select a device in the left device list in the function display area. Click “Operation Parame- ters” on the right. enter a value in “Current Value”, and then click “Settings” Click “Configure Synchronization”to synchronize the settings to other devices of the same type.

  • Page 69: M On Isolarcloud App

    O&M on iSolarCloud App After the device is powered on, except on the Web interface, you can also perform simple O&M of devices on the iSolarCloud App. About iSolarCloud With iSolarCloud App, communication between the inverter and the mobile device can be established via WLAN, thus allowing for mobile maintenance of inverters.

  • Page 70: Login

    9 O&M on iSolarCloud App System Manual • Google Play (Android, users outside mainland China) • App Store (iOS) Option 2 Scan the QR code below, and download and install the App by following the onscreen instructions. Once installed successfully, the iSolarCloud icon will appear on the screen. Login 9.4.1 Requirements Before logging in to the App, please make sure:...

  • Page 71: Login Steps

    System Manual 9 O&M on iSolarCloud App 9.4.2 Login Steps Step 1 Turn on WLAN on your phone, search for the WLAN hotspot named “SG-A1234567890”, and enter the password to connect to the WLAN network. The default password is ESPWifi@123. •...
  • Page 72 9 O&M on iSolarCloud App System Manual Step 2 Open the iSolarCloud App. On the login screen, tap Local Access at bottom left. figure 9-2 Local Access Step 3 A confirmation dialog will pop up on the screen, which is shown below. Tap Confirm to con- nect to the device.
  • Page 73 System Manual 9 O&M on iSolarCloud App figure 9-3 Login Confirmation Step 4 Tap More, and enter the account name and password to log in. The default account name is “user” and password is pw8888. Then, tap Verification. figure 9-4 Identity Verification To keep your account secure, please change the password as soon as possible.

  • Page 74: Home

    9 O&M on iSolarCloud App System Manual Step 5 Once logged in, you will go to the Home screen of the App. - - End Home Once logged in, you will go to the Home screen, as shown below.
  • Page 75 System Manual 9 O&M on iSolarCloud App figure 9-5 Home Screen table 9-1 Description of Modules on the Home Screen Description Item Displays information such as generated output and feed-in power of the PV system are shown here. Arrows between the icons indicate that there is energy flowing between the devices.

  • Page 76: Run Information

    9 O&M on iSolarCloud App System Manual Description Item Shows the daily yield curve by default. You can also switch to check the monthly, yearly, or total yield curve. The curves shown Data Curve here are based on power. Navigation Includes "Home", "Run Information", "Records", and "More".

  • Page 77: Records

    System Manual 9 O&M on iSolarCloud App table 9-2 Description of Run Information Description Item Data such as daily/monthly/annual yield, and DC/ac- Realtime Values tive/reactive power. Information related to Local Emergency Stop and MV Node Status node status, etc. Information such as the time of startup, and MPPT Operation Parameters voltage upper and lower limits.
  • Page 78 9 O&M on iSolarCloud App System Manual figure 9-7 Records Fault Alarm Record Tap Fault Alarm Record to check the fault alarm history, which is shown as follows. You can tap the drop-down arrow to the right of SG3300UD_UNIT1 and check the fault alarm re- cords of the inverter unit, whole inverter, or SCU as you want.

  • Page 79: More

    System Manual 9 O&M on iSolarCloud App You can choose an item from the record list, and tap it to view its detailed information. More Tap More in the bottom navigation bar. Functions such as “Boot”, “Shutdown”, and “Modify Password” are available on this screen. figure 9-9 More 9.8.1 Boot/Shutdown You can choose Boot/Shutdown, and select a device to start/stop it.

  • Page 80: Modify Password

    9 O&M on iSolarCloud App System Manual 9.8.2 Modify Password You can choose“More→Modify Password” to change your password. The user interface is shown as follows.

  • Page 81: Lcd Menu Operation (Optional)

    10 LCD Menu Operation (Optional) 10.1 LCD TouchScreen The eye-level LCD touchscreen inside the monitoring window on the front side of the product is used by the user to view data and set parameters. For user convenience, there are a large number of pictures of the LCD interface are provided in this chapter.

  • Page 82: Backlight And Screensaver

    The logical structures of these menus are shown below: Main Menu First sub-menu Second sub-menu Third sub-menu Start Start/Stop Stop Home SG1100UD SG2200UD Set-parameter Function Control Mode SG3300UD SG4400UD The control mode is subject to the actual product. 10.4 Setting Language The language setting shortcut (shown by A) is at the lower right corner of the Home menu.

  • Page 83: Setting Control Mode

    System Manual 10 LCD Menu Operation (Optional) 10.5 Setting Control Mode Product control mode are protected by password. Proceed as follows to enter the password: Step 1 Tap“Function”from the default menu, and the password entering window pops up. Step 2 Tap the white edit box and a keypad pops up. Step 3 Enter the password 1111 through the keypad.

  • Page 84: Troubleshooting

    Whether the emergency stop button is pressed • Whether the inverter limits the output of active power If the problem still persists or there are any other questions, please contact SUNGROW. It would be helpful if the following information is provided during a call: •...
  • Page 85 System Manual 11 Troubleshooting Fault Name Fault Cause Fault Level Corrective Method 1. Check whether a short circuit occurs on the AC or DC sides of The drive board the inverter. generates a fault 2. Check the grid for any Important Module fault signal or a hard-...
  • Page 86 11 Troubleshooting System Manual Fault Name Fault Cause Fault Level Corrective Method 1. Check whether the grid volt- age is normal. 2. Check whether the control fan is normal. The temperature Control cabinet 3. Check the AC filter system. inside the control Important temperature Check whether there are abnor-...
  • Page 87 System Manual 11 Troubleshooting Fault Name Fault Cause Fault Level Corrective Method 1. Check whether the ambient temperature is normal; Use a thermometer to check whether the current ambient temperature is within the temper- ature range advertised by the If the temperature inverter.
  • Page 88 11 Troubleshooting System Manual Fault Name Fault Cause Fault Level Corrective Method 1 Check whether the protection parameters on the interface meet the grid standards of the lo- cation where the inverter is The grid fre- Frequency fault Important installed. quency is abnormal.
  • Page 89 System Manual 11 Troubleshooting Fault Name Fault Cause Fault Level Corrective Method Check whether the power grid is The inverter fails Important abnormal, such as harmonics Soft start fault to start. and voltage balance. Check the status indicator of the SPD.
  • Page 90 11 Troubleshooting System Manual Fault Name Fault Cause Fault Level Corrective Method Disconnect the DC switch of the inverter and check whether the open-circuit voltage of the PV ar- rays is normal; If not, the PV ar- ray configuration may be faulty. The DC side volt- 2.
  • Page 91 System Manual 11 Troubleshooting Fault Name Fault Cause Fault Level Corrective Method 1. Check the air inlet. 2. Check whether the air outlet The temperature of the inverter is blocked. Re- Module over- of modules inside place the air filter screen if Important temperature the inverter is ex-...
  • Page 92 AC cabinet. Clean it if necessary. Check whether the DC fuse is The fuse on the blown. DC fuse Secondary DC side of the in- anomaly If so, please contact SUNGROW verter fails. to replace the fuse.
  • Page 93 2. Check the communication ter- minal of the meter is loose. Check whether the DC fuse is The fuse on the blown. Secondary DC fuse fault DC side of the in- If so, please contact SUNGROW verter fails. to replace the fuse.
  • Page 94 HVRT or LVRT. voltage. If the fault/alarm cannot be cleared following the above corrective methods and still persists, please contact SUNGROW directly. Fault Name Fault Cause Fault Level Corrective Method The AC switch is...
  • Page 95 Fault Level Corrective Method The addresses of the inver- Machine code Please contact Important ter units inside the inverter repetition fault SUNGROW. are the same. Temperature and The communication of the humidity board Please contact Secondary temperature and humidity communication SUNGROW.

  • Page 96: Other Faults

    If the fault is not caused by the fore- going reasons and still persists, please contact SUNGROW as soon as possible. 1. Refresh the Web page manually. 2. Restart or replace the mobile de-...
  • Page 97 Method”. If the fault is not caused by the fore- going reasons and still persists, please contact SUNGROW as soon as possible. 1. Export data in batches multiple The amount of data ex- Fail to export measur- times.

  • Page 98: Routine Maintenance

    12 Routine Maintenance 12.1 Safety Instructions Risk of inverter damage or personal injury due to incorrect service! • Disconnect the switches between the product and all power supplies before maintenance. • After the inverter is powered off for 20 minutes, measure the voltage and cur- rent with measuring equipment.
  • Page 99 Otherwise, damage may be caused to the product! To avoid the risk of electric shock, do not perform any other maintenance opera- tions beyond those described in this manual. If necessary, contact SUNGROW for maintenance. Otherwise, the losses caused are not covered by the warranty.

  • Page 100: Maintenance Period

    12 Routine Maintenance System Manual 12.2 Maintenance Period 12.2.1 Maintenance (Every two years) Item Check method Check the following items, and correct immedi- ately those failing to meet the relevant requirements: • Check whether there is any damage or deforma- tion of the inverter and internal equipment.

  • Page 101: Maintenance (Once A Year)

    System Manual 12 Routine Maintenance 12.2.2 Maintenance (Once A Year) Item Check method Check the following items, and correct immediately those fail- ing to meet relevant requirements: • Check whether there are flammable objects on the top of the inverter. •...

  • Page 102: Maintenance (Every Half A Year To Once A Year)

    12 Routine Maintenance System Manual Item Check method Screw Check whether internal screws fell off. Check the following items, and correct immediately those fail- ing to meet relevant requirements: • Check whether there are flammable objects on the top of the inverter.

  • Page 103: Common Maintenance Items

    System Manual 12 Routine Maintenance Item Check method Check the temperature of the heat sink and the amount of dust accumulated. Clean heat-dissipation modules with a vacuum Air inlet and outlet cleaner if necessary. • Carry out regular inspection for corrosion of all metal components.

  • Page 104: Cleaning Air Outlet Of Inverter

    12 Routine Maintenance System Manual Procedure Step 1 Use a screwdriver to remove the M5 fixing screws for the first maintenance. Step 2 Pull the spring plunger at both ends of the filter at the air inlet outward and tilt the filter down- ward to remove it.

  • Page 105: With Connection Area On The Side

    System Manual 12 Routine Maintenance Step 2 Remove the M6 nut on the air outlet filter, take out and clean it. Step 3 After cleaning, install the filter in reverse steps. - - End 12.3.2.2 With Connection Area on the Side The following figure shows the cleaning steps for the air outlet under the sealing plate．...

  • Page 106: Indelible Traces

    12 Routine Maintenance System Manual - - End 12.3.3.2 Indelible Traces Tools Name Source Abrasive paper Cleaning cloth Water Beyond the scope of supply Alcohol Brush RAL7035 oil paint Step 1 Polish the paint surface with blistering or scratches with abrasive paper for a smooth surface. Step 2 Wet the cleaning cloth with water or 97% alcohol, and scrub the damaged parts to remove surface stains.

  • Page 107: Checking Door Locks And Hinges

    System Manual 12 Routine Maintenance Name Source Zinc primer Brush RAL7035 oil paint Step 1 Polish the damaged parts with abrasive paper to remove rust and other burrs for a smooth surface. Step 2 Wet the cleaning cloth with water or 97% alcohol, and scrub the damaged parts to remove surface stains and dust.

  • Page 108: Replacing Dc Side Fuse

    12 Routine Maintenance System Manual 12.4.1 Replacing DC Side Fuse Step 1 Power off the product according to the normal shutdown steps, refer to"7.5.1 Planned Powering Down". Make sure the PVS is disconnected from the inverter unit. Step 2 Wait for 20 minutes for the internal capacitors to be completely discharged. Step 3 Unlock the DC cabinet door and remove the protective cover on the DC fuse.

  • Page 109: Appendix

    13 Appendix 13.1 Technical Parameters SG1100UD/SG1100UD-20 Type designation SG1100UD SG1100UD-20 Input (DC) Max. PV input 1500 V voltage Min. PV input volt- age / Startup input 895 V / 905 V 938V / 950 V voltage MPP voltage range 895 – 1500 V 938 –...
  • Page 110 13 Appendix System Manual Feed-in phases / AC 3 / 3 connection Efficiency Max. efficiency / 99.0 % / 98.8 % 99.0 % / 98.7 % European efficiency Protection & Function DC input protection Load break switch + fuse Circuit breaker AC output protection Overvoltage DC Type II / AC Type II...
  • Page 111 System Manual 13 Appendix SG3300UD/SG3300UD-20 Type designation SG3300UD SG3300UD-20 Input (DC) Max. PV input 1500 V voltage Min. PV input volt- age / Startup input 895 V / 905 V 938V / 950 V voltage MPP voltage range 895 – 1500 V 938 –...
  • Page 112 13 Appendix System Manual AC output protection Circuit breaker Overvoltage DC Type II / AC Type II protection Grid monitoring/ Grounding fault Yes / Yes protection Insulation monitoring Surge protection Optional Q at night function General Data Dimensions (width x 2340 * 2300 * 1550 mm height x depth) * Weight *...
  • Page 113 System Manual 13 Appendix MPP voltage range 895 – 1500 V 938 – 1500 V No. of independent MPP inputs 20(optional: 24/28 inputs negative grounding) No. of DC inputs Max. PV input 4×1435 A current Max. DC short-cir- 4×3528 A cuit current PV array Negative grounding or floating...

  • Page 114: Tightening Torques

    13 Appendix System Manual Insulation monitoring Surge protection Optional Q at night function General Data Dimensions (width x 2900 * 2300 * 1550 mm height x depth) * Weight * 3.3 T Topology Transformerless Degree of IP65 protection Night power <...

  • Page 115: Quality Assurance

    • The customer shall give SUNGROW a reasonable period to repair the faulty device. Exclusion of Liability In the following circumstances, SUNGROW has the right to refuse to honor the quality guarantee: • The free warranty period for the whole machine/components has expired.
  • Page 116 Sungrow Power Supply Co., Ltd. www.sungrowpower.com...

This manual is also suitable for:

Sg1100ud-20Sg3300udSg3300ud-20Sg4400udSg4400ud-20

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