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...
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................3 2 Safety Instructions ....................4 2.1 Unpacking and Inspection ................5 2.2 Hoisting and Transportation................6 2.3 Electrical Connection ..................6 2.4 Operation.......................8...
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5.2.1 Scope of Delivery ................22 5.2.2 Product Inspection ................23 5.3 Installation Environment Requirements ............23 5.3.1 Installation Site ...................23 5.3.2 Foundation ..................24 5.3.3 Space Requirements................24 5.3.4 Installation Position Requirements............26 5.4 Hoisting and Fixing ..................27 5.4.1 Preparation Before Hoisting ..............27 5.4.2 Crane and Sling Requirements.............27 5.4.3 During Hoisting ...................28 5.4.4 Fixing ....................30 6 Electrical Connection...
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6.7.2 Ethernet Communication ..............55 6.8 Check After Wiring..................55 6.8.1 Inspection...................55 6.8.2 Locking Cabinet Door ................56 7 Powering Up and Powering Down ...............57 7.1 Safety Instructions ..................57 7.2 Powering Up Operations ................57 7.2.1 Removing Film on PV Inverter..............57 7.2.2 Installing Fuse in AC SPD ..............58 7.3 Inspection Before Powering Up..............59 7.3.1 Inverter Unit..................59 7.3.2 PV Array.....................59...
This manual describes the transportation and storage, mechanical installation, electrical connection, power up and shutdown, web operation, troubleshooting, and maintenance of PV Inverter. Validity This manual applies to the following models: • SG1100UD / SG1100UD-20 • SG2200UD / SG2200UD-20 • SG3300UD / SG3300UD-20 •...
If the manual received is slightly inconsistent with the product, it may be a result of a product 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.
User Manual 1 About This Manual Explanation of Description Type Example Select a menuitem Select Device Monitoring in the navigation bar Select multiple menus Select Device Monitoring → Real-time Status Select a button Click Save...
Perform operations considering ac- tual on-site 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.
2 Safety Instructions User Manual 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 PV Inverter. • All hoisting and transportation must comply with the relevant codes and regula- tions of the nation/region where the project is located.
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User Manual 2 Safety Instructions PV modules will generate lethal high voltage when exposed to sunlight. • Operators must wear proper PPE with an arc rating that meets the product re- quirements, such as goggles, safety shoes, and safety gloves during electrical connections.
2 Safety Instructions User Manual Comply with the regulations related to the local grid during wiring. 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. •...
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Do not open the cabinet door of any component of the PV Inverter on sandy and windy days or when the relative humidity exceeds 95%. If some devices need to be replaced during operation and maintenance, please contact SUNGROW.
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.
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User Manual 2 Safety Instructions Please scrap PV Inverter in accordance with relevant local regulations and stand- ards to avoid property losses or casualties.
Product Description Product Introduction A solar power system consists of PV Inverters, transformers, power distribution cabinets, and monitoring units. Within the system, the PV Inverter converts DC current from PV arrays to AC current, which is then stepped up by the transformer and fed into the grid. Description Name Monocrystalline silicon, polycrystalline silicon, and...
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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 SG2200UD / SG2200UD-20 Two inverter units SG3300UD / SG3300UD-20...
3 Product Description User 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...
User Manual 3 Product Description Name Emergency stop button. In case of emergency, press this button to discon- nect 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 unit is in grid-connected operation.
3 Product Description User 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 in- DC load switch QS1 verter unit.
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Read this manual carefully before any operation on the product. Do not dispose of this product as household waste. SUNGROW shall not be held liable for any equipment damage or safety incident caused by failure to observe the warning signs.
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 In the whole process of loading, unloading, and transport, follow strictly the appli- cable safe operating procedure in the country/region where the project is located. Tool and Personnel Requirements •...
User Manual 4 Transport and Storage Pre-transport route inspection should cover the following items: road condi- tions, height limits, actual heights, width limits, actual widths, weight limits, traf- fic restrictions, and potential obstructions. • In most cases, the total weight of a truck that carries the product will exceed the general weight limit on the road.
For a product shut down/stored for over six months, inspect its electrical components (IGBT module, DC fuses, fans, etc.), and take dehumidification and dedusting measures for the whole product. For detailed operation, please contact SUNGROW. • The UPS and their batteries must be charged once every six months after leaving the...
After receiving the product, check whether the appearance and structural parts of the product are damaged, and whether the packing list is consistent with the actual ordered product. If there are problems with the above inspection items, do not install the product and contact SUNGROW in time.
5 Mechanical Mounting User Manual Improper hoisting may cause personal injury! • It is strictly prohibited to stand within 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 prop- er PPE with an arc rating that meets the product requirements when operating.
• 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: •...
5 Mechanical Mounting User Manual • Do not install PV Inverter in places with vibration or a magnetic field strength of over 30A/m. • The installation site should be far away from residential areas to avoid noise. 5.3.2 Foundation Given that the installation site has been decided and the foundation has been set up before the arrival of the product, details on these two items will not be included in this manual.
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User Manual 5 Mechanical Mounting With obstructions or heat source around Space Requirements Mark ≥4000mm ≥2000mm Arranged in rows (face the same direction) Space Requirements Mark ≥8000mm ≥2000mm...
≥5000mm ≥2000mm For arrangement modes and space requirements that are not mentioned in this manual, please confirm with SUNGROW. 5.3.4 Installation Position Requirements The installation position needs to meet the heat dissipation performance of the product, and the appropriate position should be selected according to the installation location of the...
5.4.2 Crane and Sling Requirements SG1100UD Hoist the product by the 4 lifting lugs at its top. The four slings should be identical in length. Each sling should have a length of ≥3 m and a lifting capacity of ≥2000kg.
5 Mechanical Mounting User Manual 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 capacity of ≥4000kg. Sling 1 Steel wire rope cannot be used as Sling 1. The sling shall have a length of 8m and a lifting capacity of ≥9000kg.
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5 Mechanical Mounting • Avoid scratching the PV Inverter during hoisting. figure 5-2 SG1100UD Hoisting Diagram figure 5-3 SG4400UD Hoisting Diagram When the PV Inverter is hoisted in place, remove the wooden blocks on both sides of the cabinet to ensure fine air intake of the PV Inverter.
5 Mechanical Mounting User Manual Be sure to hoist the PV Inverter smoothly and evenly to avoid collision and vibra- tion. Do not turn the PV Inverter upside down, nor hoist it for a long time. Other- wise, personal injury or PV Inverter damage may occur! 5.4.4 Fixing Hoist the product to the intended location and fix it.
Electrical Connection Precautions • Before electrical connections, please make sure that PV Inverter is not dam- aged, otherwise, it may cause danger! • Before making electrical connections, check and confirm that the cables are all intact and well-insulated. Poor insulation or cable damage may result in safety hazards.
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6 Electrical Connection User Manual Sand and moisture penetration may damage the electrical equipment in the prod- uct, or affect their operating performance! • Avoid electrical connections during sandstorms or when the relative humidity in the surrounding environment is greater than 95%. •...
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User Manual 6 Electrical Connection • Whenever necessary, wear proper PPE with an arc rating that meets the product requirements, such as goggles, insulating gloves, and insulating shoes, and take all necessary auxiliary protective measures to ensure the safety of the per- sonnel and the equipment.
6 Electrical Connection User Manual 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 —...
User Manual 6 Electrical Connection 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 Inverter Unit Door Step 1 Open the cabinet door. Step 2 Fix the doors of the inverter unit cabinet.
6 Electrical Connection User Manual - - 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: –...
User Manual 6 Electrical Connection * The figure is for reference only. The product received may differ. 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.
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6 Electrical Connection User Manual 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.
* For the number of inputs and the cable size not mentioned above, please confirm with SUNGROW. * Waterproof connectors (contact SUNGROW in advance if needed) or fireproof mud (pre- pared by users) are used to seal off the cable inlets/outlets.
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. •...
User Manual 6 Electrical Connection 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 arrays will generate lethal high voltage when exposed to sunlight. Respect all safety instructions listed in relevant documents about PV arrays.
6 Electrical Connection User Manual • Make sure the PV array is well insulated to the ground before connecting it to PV Inverter. • Make sure the maximum DC voltage and the maximum short circuit current of any string never exceed PV Inverter permitted values specified in "Technical Parameters".
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User Manual 6 Electrical Connection Negative Grounding figure 6-4 7–way DC Input figure 6-5 7–way DC Input With MPLC...
6 Electrical Connection User 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...
"NF C33-090-1 -1995". The appearance and dimensions of the bimetallic termi- nal are illustrated in the figure below. figure 6-8 Copper-Aluminum Bimetallic Terminal 6.5.4 Procedure The number of PV strings connected to the DC side of each inverter unit should be consistent. If this is not possible, please contact SUNGROW.
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6 Electrical Connection User Manual Step 1 Lead the cable into the wiring area through the inlet hole, and mark the cable polarity. Step 2 Strip the protective layer of the cable to expose the copper core of the wire with strippers. Step 3 Install the OT/DT terminal to the wire and crimp them with a crimping tool.
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6-10 Double Side Copper Wire Connection * The length of bolts used for double-sided wiring should be determined based on the actual conditions at the project site. To implement double-sided wiring, please contact SUNGROW and provide relevant details to assess the feasibility first. •...
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Prevent the aluminum component of the copper-aluminum bimetallic terminal from contacting the copper bar to avoid electrochemical corrosion, abnormal heating due to increased contact resistance, and potential equipment damage. To implement double-sided wiring, please contact SUNGROW and provide relevant details to assess the feasibility first.
User Manual 6 Electrical 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. Step 5 Pull the cable back slightly after wiring to ensure that the cable is long enough. •...
6 Electrical Connection User Manual figure 6-13 Cable Clip Installation Note: The cable clip is an optional accessory. Follow-up Operation The figure below shows the DC side of the inverter unit after the wiring is completed. * The figure is for illustration only and the actual product on site may be different. Description Cable Waterproof connector *...
User Manual 6 Electrical Connection • Check and ensure that the sleeves and copper bars in the wiring area in the HV compart- ment are free from damage, deformation, and fracture. 6.6.2 AC Connection Area at the Bottom AC Connection Area The AC connection area is shown in the following figure.
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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. The recommended torque is 60–70N.m. • Use M16 bolts for connection on the SG2200UD~SG4400UD. The...
User Manual 6 Electrical Connection Name Name AC copper bar Copper bar of the Spring washer transformer Flat washer Bolt Communication Wiring The PV 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 6-14 Typical Composition of Smart Unit Board...
6 Electrical Connection User Manual figure 6-15 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...
User 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.
6 Electrical Connection User 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 PV Inverter.
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.
7 Powering Up and Powering Down User Manual 7.2.2 Installing Fuse in AC SPD Confirm the position of the Fuse in AC SPD. The location of the fuse in AC SPD varies slightly depending on how the AC cable comes out.
User Manual 7 Powering Up and Powering Down Install fuse Step 1 Open the fuse holder in the AC side. Step 2 Insert fuses. Step 3 Close the fuse holder in the AC side SPD. - - End Inspection Before Powering Up 7.3.1 Inverter Unit •...
7 Powering Up and Powering Down User Manual To ensure the stable and efficient operation of the whole system, it is recommended that bat- teries connected to an PV Inverter should be of the same type and from the same manufac- turer, and the number of batteries connected in series should be the same.
User Manual 7 Powering Up and Powering Down Powering Down Operations 7.5.1 Planned Powering Down After the equipment stops running, wait at least 20 minutes, and verify that the volt- age is within a safe range. Then, perform maintenance or overhaul by following the instructions on the warning signs on the equipment.
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7 Powering Up and Powering Down User Manual Step 7 The inverter stops running. For the position of the above switches, please see "3.3.2 Internal Structure of In- verter Unit". • In case of an emergency, be sure to press the emergency stop button directly to make the equipment stop immediately.
O&M on WEB It is recommended to perform O&M on the WEB interface after the device is powered on. Communications Diagram The communication wiring inside the PV Inverter is completed before delivery. Connect the laptop to the switch inside the power distribution cabinet using a CAT-5e cable on site to en- able Web access on the laptop.
Step 1 Enable WiFi on the mobile device (such as a mobile phone), search for the hotspot, such as 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.
User Manual 8 O&M on WEB - - End Login Steps Step 1 Enter the server address to enter the homepage as a visitor by default. Laptop: • 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.
8 O&M on WEB User Manual Description Alarm number 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.
User Manual 8 O&M on WEB Step 2 Pull down “Country /Region” to set according to the product location, and pull down “Machine Choose” to set according to the actual product model. Click “Settings” to complete the initial parameter setting. The above parameters have been configured before the product leaves the factory.
8 O&M on WEB User Manual Logout To protect the account security, it is recommended to log out in time after the operation is completed. Exit Method Click and select Logout in the upper right corner of any interface.
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. O&M via the iSolarCloud App is supported, except in Europe. About iSolarCloud With iSolarCloud App, communication between the PV Inverter and the mobile device can be established via WLAN, thus allowing for mobile maintenance of PV Inverters.
9 O&M on iSolarCloud App User Manual figure 9-1 Functional Tree of the iSolarCloud App Download and Installation Option 1 Search for "iSolarCloud" in the following app stores, and download and install the App. • MyApp/Yingyongbao (Android, mainland China users) •...
User Manual 9 O&M on iSolarCloud App Login 9.4.1 Requirements Before logging in to the App, please make sure: • The AC and DC side of the inverter units are powered on. • WLAN is enabled on your mobile device (e.g., mobile phone). •...
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9 O&M on iSolarCloud App User 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.
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User 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.
9 O&M on iSolarCloud App User 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.
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User 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 Inverter are shown here. Arrows between the icons indicate that there is energy flowing between the devices.
9 O&M on iSolarCloud App User 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", "Device list", "Records", and "More".
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User Manual 9 O&M on iSolarCloud App figure 9-7 Records Status Records Tap Status Records to check the fault alarm history, which is shown as follows. Select the fault you need to view and click to jump to the detailed information for that fault. figure 9-8 Status Records History Cruve Tap History Cruve to view the historical operating curves of the device at different dates.
9 O&M on iSolarCloud App User Manual figure 9-9 History Cruve More Tap More in the bottom navigation bar. Functions such as “Boot”, “Shutdown”, and “Modify Password” are available on this screen.
User Manual 9 O&M on iSolarCloud App figure 9-10 More 9.8.1 Boot/Shutdown You can choose Boot/Shutdown, and select a device to start/stop it. The user interface is shown as follows.
9 O&M on iSolarCloud App User Manual 9.8.2 Modify Password You can choose“More→Modify Password” to change your password. The user interface is shown as follows.
10 LCD Menu Operation (Optional) 10.1 LCD Screen The eye-level LCD screen 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.
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.
User 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.
Whether the emergency stop button is pressed. • Whether the PV 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: •...
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In this case, do not attempt to power it off and try to re- store the inverter unit, in- stead, contact SUNGROW personnel for the support. Disconnect the AC and DC side switches of the PV Inverter, and...
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11 Troubleshooting User Manual Fault Name Fault Cause Fault Level Corrective Method 1. Use a thermometer to check whether the current ambient temperature is within the temper- ature range advertised by the PV Inverter. 2. Check whether the air inlet of the PV Inverter and the inverter The temperature Reactor over-...
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User Manual 11 Troubleshooting Fault Name Fault Cause Fault Level Corrective Method 1. Check whether the DC side voltage of the PV Inverter is short-circuited, whether the input Voltage exists be- voltage exceeds the allowable tween the positive range, and whether the grid volt- and negative age is abnormal.
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11 Troubleshooting User Manual Fault Name Fault Cause Fault Level Corrective Method 1 Check whether the protection parameters in Parameter Set- tings -> Protection Parameters meet the grid standards of the lo- cation where the PV Inverter is installed. The grid voltage is Grid over- 2 Disconnect the AC circuit higher than the set...
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User Manual 11 Troubleshooting Fault Name Fault Cause Fault Level Corrective Method 1 Check whether the internal and external power supply con- trol switches of the PV Inverter are closed or disconnected at the same time. If they are closed at the same time, please disconnect one of the switches.
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11 Troubleshooting User Manual Fault Name Fault Cause Fault Level Corrective Method 1. Refer to the troubleshooting method of "DC SPD fault" to con- duct preliminary troubleshooting. 2. Check whether the micro cir- cuit breaker is connected in ser- The AC side SPD Important ies with the SPD trips.
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User Manual 11 Troubleshooting Fault Name Fault Cause Fault Level Corrective Method 1. Check whether cables on the AC and DC sides of the PV In- verter are loose. AC side current of the PV Inverter is Important 2. Check whether the insulation AC over-current excessively high.
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11 Troubleshooting User Manual Fault Name Fault Cause Fault Level Corrective Method 1 Check the DC cables. Check whether the positive grounding cable of each DC branch is damaged. Check whether the DC cable re- sistance to the ground is normal. A grounding fault Grounding fault Important...
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The fuse on the blown. DC fuse Secondary DC side of the in- anomaly If so, please contact SUNGROW verter unit fails. to replace the fuse. 1. Check the insulation of AC cables. 2. Check the AC SPD. Anti-PID power...
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Check whether the DC fuse is The fuse on the blown. Secondary DC fuse fault DC side of the PV If so, please contact SUNGROW Inverter fails. to replace the fuse. The branch fuse Please refer to the troubleshoot- Branch fuse...
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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...
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-...
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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.
12 Routine Maintenance 12.1 Safety Instructions Risk of PV Inverter damage or personal injury due to incorrect service! • Disconnect the switches between the product and all power supplies before maintenance. • Measure the voltage and current after the PV Inverter is powered off for 20 mi- nutes.
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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.
12 Routine Maintenance User Manual 12.2 Inspection After Power Off While the product is operating, do not turn off any AC- or DC-side switches directly. Otherwise, an electrical arc may occur, which may then damage the switch or even the PV Inverter. During the installation and operation of the product, ensure the positive or nega- tive of the PV string is not short-circuited to ground.
User Manual 12 Routine Maintenance 12.3 Maintenance Period 12.3.1 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 PV Inverter and internal equipment.
12 Routine Maintenance User Manual 12.3.2 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. •...
User Manual 12 Routine Maintenance Item Check method • Check the running status of fans. • Check whether the fan blade rotates smoothly. • Check whether there is abnormal noise during the operation of the fans. Screw Check whether internal screws fell off. Check the following items, and correct immediately those fail- ing to meet relevant requirements: •...
12 Routine Maintenance User Manual Item Check method Check the temperature of the heat sink and the amount of dust accumulated. Clean heat-dissipation IGBT modules with a Air inlet and outlet vacuum cleaner if necessary. • Carry out regular inspection for corrosion of all metal components.
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User Manual 12 Routine Maintenance 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.
12 Routine Maintenance User Manual 12.4.2 Cleaning Air Outlet of Inverter Unit 12.4.2.1 With Connection Area at the Bottom Step 1 Remove the M6 bolts on the sealing plate at the bottom of the AC side of the inverter unit, and remove the sealing plate.
User Manual 12 Routine Maintenance 12.4.3 Appearance Repair Check if the protective paint sprayed on the enclosure of the product fell off or peeled off. If so, repair it timely. Spray a special protective paint to the exterior of the product every 5 years. Solutions Select different repair solutions based on the damage conditions.
(Volume Ratio) Interthane 990 35℃ 4h • Confirm with SUNGROW before using paints of other brands or models. • When using a two-component paint, first thoroughly agitate each component individually, and then mix them in the specified proportions for stirring.
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User Manual 12 Routine Maintenance • Base material temperature: 5℃–60℃ • Relative humidity: 10%–85%RH Repair Steps Step 1 Polish the paint surface with blistering or scratches with an abrasive paper to expose the gray primer. Use a film thickness meter to measure the primer thickness, which must be at least 150μm.
12 Routine Maintenance User Manual Step 4 Repair the finish paint. Prepare the finish paint with the same color as the appearance. Common finish paint colors RAL7035 (Streamer RAL7016 (Dolphin RAL9003 (White) Grey) Grey) Mix the finish paint according to the paint model and the requirements of "table 12-2 Fin- ish Paint Selection and Mixing".
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• Use primers and finish paints from the same manufacturer. • Confirm with SUNGROW before using any paint from a different manufacturer. • When using a two-component paint, first thoroughly agitate each component individually, and then mix them in the specified proportions for stirring.
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12 Routine Maintenance User Manual Item Brushes with different sizes Grinder (conical and cylindrical polishing heads) Wall putty Finish coat Primer Film thickness meter Environment Requirements • Ambient temperature: 5℃–40℃ • Base material temperature: 5℃–60℃ • Relative humidity: 10%RH–85%RH Repair Steps Step 1 Use a grinder or abrasive paper to smooth uneven areas on the surface, achieving a smooth finish with a metallic luster.
User Manual 12 Routine Maintenance Step 5 Repair the primer. Prepare the primer with the same color as the appearance. Common finish paint colors RAL7035 (Streamer RAL7016 (Dolphin RAL9003 (White) Grey) Grey) Mix the primer according to the paint model and the requirements of "table 12-4 Primer and Finish Paint Selection and Mixing".
12 Routine Maintenance User Manual 12.5.1 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 smart PV combiner box is disconnected from the inverter unit. Step 2 Wait for 20 minutes for the internal capacitors to be completely discharged.
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 –...
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13 Appendix User 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 AC Circuit breaker AC output protection Overvoltage DC Type II / AC Type II...
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User Manual 13 Appendix Standard: RS485, Ethernet Communication CE, IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC CE, IEC 62109, IEC 61727, 61683, VDE-AR-N 4110:2018, Compliance IEC 62116, IEC 60068, IEC VDE-AR-N 4120:2018, EN 61683 50549-2, UNE 206007-1:2013, NTS 631, UTE C15-712-1:2013 *: If parameters marked with * are different from those on the nameplate, parameters on the nameplate shall prevail.
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13 Appendix User Manual Nominal AC 660 V 630 V voltage Rated voltage 561 – 726 V 536 – 693 V range Nominal grid fre- quency / Grid fre- 50 Hz / 45 – 55 Hz, 60 Hz / 55 – 65 Hz quency range <1.5% (at nominal power) Harmonic (THD)
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User Manual 13 Appendix Degree of IP65 protection Night power < 200 W consumption Operating ambi- -35 ℃ to 60 ℃ (> 45 ℃ derating) -35 ℃ to 60 ℃ (> 51 ℃ derating) ent temperature range** Allowable relative 0 - 100% humidity range Temperature controlled forced air cooling Cooling method...
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13 Appendix User Manual 15 (optional: 21 inputs n egative grounding) No. of DC inputs Max. PV input 3 × 1435 A current Max. DC short-circuit 3 × 3528 A current PV array Negative grounding or floating configuration Output (AC) 3300 kVA @ 45 ℃...
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User Manual 13 Appendix Weight * 2.5 T Topology Transformerless Degree of protection IP65 Night power < 200 W consumption -35 ℃ to 60 ℃ (> 45 ℃ Operating ambient -35 to 60 ℃ (> 51 ℃ derating) derating) temperature range** Allowable relative 0 - 100% humidity range...
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13 Appendix User Manual No. of independent MPP inputs 20 (optional: 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 configuration Output (AC) 4400 kVA @ 45 ℃, 4532 kVA 4400 kVA @ 51 ℃, 5280 kVA @ AC output power...
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User Manual 13 Appendix 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 < 200 W consumption -35 ℃...
• 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.
The damage is caused by unexpected natural factors. For faulty products in any of above cases, if the customer requests maintenance, paid main- tenance service may be provided based on the judgment of SUNGROW. Product data such as product dimensions are subject to change without prior no- tice.
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