Sungrow SG3.3RS-L User Manual
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Sungrow SG3.3RS-L User Manual

1-phase pv grid-connected inverter
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User Manual
1-Phase PV Grid-Connected Inverter
SG3.0RS-L / SG3.3RS-L / SG4.0RS-L / SG4.6RS-L /
SG5.0RS-L / SG6.0RS-L
SG3.0RS-L /
Grid-Connected InverterUser
ManualSG3.0-6.0RS-L-UEN-Ver13-
202402
SG3.0-6.0RS-L-UEN-Ver13-202402

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Summary of Contents for Sungrow SG3.3RS-L

  • Page 1 User Manual 1-Phase PV Grid-Connected Inverter SG3.0RS-L / SG3.3RS-L / SG4.0RS-L / SG4.6RS-L / SG5.0RS-L / SG6.0RS-L SG3.0RS-L / SG3.3RS-L / SG4.0RS-L / SG4.6RS-L / SG5.0RS-L / SG6.0RS-L1-Phase PV Grid-Connected InverterUser ManualSG3.0-6.0RS-L-UEN-Ver13- 202402 SG3.0-6.0RS-L-UEN-Ver13-202402...

  • 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 4: About This Manual

    Please read this manual carefully before using the product and keep it properly at a place for easy access. All contents, pictures, marks, and symbols in this manual are owned by SUNGROW. No part of this document may be reprinted by the non-internal staff of SUNGROW without written...
  • Page 5 Contents of this manual may be periodically updated or revised, and the actual product pur- chased shall prevail. Users can obtain the latest manual from support.sungrowpower.com or sales channels. Symbols This manual contains important safety instructions, which are highlighted with the following symbols, to ensure personal and property safety during usage, or to help optimize the prod- uct performance in an efficient way.

  • Page 7: Table Of Contents

    Contents All Rights Reserved .....................I About This Manual......................II 1 Safety Instructions ....................1 1.1 Unpacking and Inspection ................2 1.2 Installation Safety ...................3 1.3 Electrical Connection Safety................3 1.4 Operation Safety ....................5 1.5 Maintenance Safety ..................5 1.6 Disposal Safety ....................7 2 Product Description ..................8 2.1 System Introduction ..................8 2.2 Product Introduction..................9...
  • Page 8 5.2 Terminal Description ..................32 5.3 Electrical Connection Overview ..............33 5.4 External Protective Grounding Connection .............35 5.4.1 External Protective Grounding Requirements ........36 5.4.2 Connection Procedure.................36 5.5 AC Cable Connection ...................37 5.5.1 AC Side Requirements ................37 5.5.2 Assembling the AC Connector .............38 5.5.3 Installing the AC Connector..............41 5.6 DC Cable Connection ...................41 5.6.1 PV Input Configuration ................43...
  • Page 9 7.10.2 Operation Parameters ...............78 7.10.3 Power Regulation Parameters............79 7.10.4 Communication Parameters...............84 7.10.5 Firmware Update ................84 7.10.6 Auto-test...................85 8 System Decommissioning ................87 8.1 Disconnect the Inverter .................87 8.2 Dismantle the Inverter ...................87 8.3 Disposal of Inverter..................88 9 Troubleshooting and Maintenance ..............89 9.1 Troubleshooting ...................89 9.2 Maintenance ....................96 9.2.1 Maintenance Notices................96...

  • Page 11: 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 12: 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 13: Installation Safety

    User Manual 1 Safety Instructions Installation Safety • Make sure there is no electrical connection before installation. • Before drilling, avoid the water and electricity wiring in the wall. Improper installation may cause personal injury! • If the product supports hoisting transport and is hoisted by hoisting tools, no one is allowed to stay under the product.
  • Page 14 Determine the specifications of AC circuit breakers strictly in compliance with the applicable local laws and regulations and safety standards or the recom- mendation by SUNGROW. Otherwise, the switch may not open in time in the event of something abnormal, which may then lead to safety incidents.

  • Page 15: Operation Safety

    User Manual 1 Safety Instructions Operation Safety When routing cables, ensure a distance of at least 30 mm between the cables and heat-generating components or areas to protect the insulation layer of cables from aging and damage. When the product is working: •...
  • Page 16 To avoid the risk of electric shock, do not perform any other maintenance opera- tions beyond those described in this manual. If necessary, contact your distributor first. If the problem persists, contact SUNGROW. Otherwise, the losses caused is not covered by the warranty.

  • Page 17: Disposal Safety

    User Manual 1 Safety Instructions Disposal Safety Please scrap the product in accordance with relevant local regulations and stand- ards to avoid property losses or casualties.

  • Page 18: Product Description

    2-1 Inverter Application in PV Power System Description Item Note Compatible with monocrystalline silicon, polycrystalline silicon, PV strings and thin-film modules without grounding. SG3.0RS-L, SG3.3RS-L, SG4.0RS-L, SG4.6RS-L, SG5.0RS- Inverter L, SG6.0RS-L. Metering device Meter cupboard with power distribution system.

  • Page 19: Product Introduction

    User Manual 2 Product Description Description Item Note Utility grid TT, TN-C, TN-S, TN-C-S. House loads that consume electricity. Loads The following figure shows the common grid configurations. To meet the demand of users in different regions, connection to a split-phase grid system is supported for this inverter, as in the following way.
  • Page 20 2 Product Description User Manual Appearance The following figure shows the appearance of the inverter. The image shown here is for reference only. The actual product received may differ. figure 2-2 Inverter Appearance Description Name Complement to the included wall mounting bracket for hang- Hanger ing the inverter.

  • Page 21: Symbols On Product

    User Manual 2 Product Description figure 2-3 Dimensions of the Inverter Inverter Model W (mm) H (mm) D (mm) SG3.0RS-L, SG3.3RS-L 125.5 SG4.0RS-L, SG4.6RS-L, SG5.0RS-L, SG6.0RS-L Symbols on Product Symbol Explanation Parameters on the DC side. Parameters on the AC on-grid side.

  • Page 22: Led Panel

    2 Product Description User Manual Symbol Explanation Read the user manual before maintenance! Burn danger due to the hot surface that may exceed 60℃. Danger to life due to high voltages! Do not touch live parts for 10 minutes after disconnection from the power sources.

  • Page 23: Circuit Diagram

    User Manual 2 Product Description table 2-1 State description of the LED indicator LED color State Definition The inverter is operating normally. The inverter is at standby or startup state (not Flashing feeding power into the grid). Blue A system fault has occured. Both the AC and DC sides are powered down.

  • Page 24: Function Description

    After communication connection is established, users can view inverter information, operational data and can set inverter parameters through the iSolarCloud. It is recommended to use the communication module from SUNGROW. Using a device from other companies may lead to communication failure or other unexpected damage.
  • Page 25 User Manual 2 Product Description Several protective functions are integrated in the inverter, including short circuit protection, grounding insulation resistance monitoring, residual current protection, grid monitoring, DC overvoltage/overcurrent protection, etc. DRM ("AU"/"NZ") The DRM function is only applicable to a single inverter. The inverter provides terminals for connecting to a Demand Response Enabling Device (- DRED).
  • Page 26 2 Product Description User Manual figure 2-6 PID Risk of Traditional Inverters The following figure is the PID risk of the inverter equipped with PID Zero, it prevents the PV array voltage from approaching PV-, reduces the risk of PID during daily operation and repairs PV panels caused by PID at night.
  • Page 27 User Manual 2 Product Description • When the PID Zero function is enabled, there will be a power consumption of less than 30 W in the PID Zero process. AFCI Function (Optional) • AFCI activation This function can be enabled to detect whether serial fault arc occurs in the loop between PV array and inverter.
  • Page 28 2 Product Description User Manual Reconnection can be performed via remote access to the AFPE after interruption. You can log in to iSolarCloud remotely. Then, find the target plant and choose Settings; select the device, and choose Advanced Settings→ Power Control→ Clear AFCI Alarm.

  • Page 29: Unpacking And Storage

    • Check the inner contents for damage after unpacking. Contact SUNGROW or the transport company in case of any damage or incompleteness, and provide photos to facilitate services. Do not dispose of the original packing case. It is recommended to store the device in the original packing case when the product is decommissioned.
  • Page 30 3 Unpacking and Storage User Manual • Do not place the inverter in places with items that may affect or damage the inverter. • Store the inverter in a clean and dry place to prevent dust and water vapor from eroding. •...

  • Page 31: Mechanical Mounting

    " " 4.2.1 Installation Environment Requirements" " . In case the environment where the device is installed does not meet the requirements, SUNGROW shall not be held liable for any prop- erty damage arising therefrom. Improper handling may cause personal injury! •...

  • Page 32: Location Requirements

    4 Mechanical Mounting User Manual Location Requirements To a large extent, a proper installation location ensures safe operation, service life, and per- formance of the inverter. • The inverter with protection rating IP65 can be installed both indoors and outdoors. •...
  • Page 33 • Please consult SUNGROW before installing inverters outdoors in areas prone to salt damage, which mainly are coastal areas within 500 meters of the coast. The sedimenta- tion amount of salt spray is correlated to the characteristics of the seawater, sea winds, precipitation, air humidity, topography, and forest coverage in the adjacent sea areas, and there are substantial differences between different coastal areas.

  • Page 34: Carrier Requirements

    4 Mechanical Mounting User Manual 4.2.2 Carrier Requirements The mounting structure where the inverter is installed must comply with local/national stand- ards and guidelines. Ensure that the installation surface is solid enough to bear four times the weight of the inverter and is suitable for the dimensions of the inverter (e.g. cement walls, plasterboard walls, etc.).

  • Page 35: Clearance Requirements

    User Manual 4 Mechanical Mounting 4.2.4 Clearance Requirements Reserve enough clearance around the inverter to ensure sufficient space for heat dissipation. Install the inverter at an appropriate height for ease of viewing the screen and LED indicator and operating switch(es). Installation Tools Installation tools include but are not limited to the following recommended ones.

  • Page 36: Moving The Inverter

    4 Mechanical Mounting User Manual Wire cutter Wire stripper Hydraulic pliers RJ45 crimping tool OT terminal crimp- MC4 terminal Electric screwdriver Slotted screwdriver (M4, M6) ing tool (4 mm –6 crimping tool (0.5 (M2) –1.0 mm Phillips screwdriver Vacuum cleaner Measuring tape Heat shrink tubing (M4)

  • Page 37: Installing The Inverter

    User Manual 4 Mechanical Mounting Improper handling may cause personal injury! • Arrange an appropriate number of personnel to carry the inverter according to its weight, and installation personnel should wear protective equipment such as anti-impact shoes and gloves. • Attention must be paid to the center of gravity of the inverter to avoid tilting dur- ing handling.
  • Page 38 * The image shown here is for reference only. The actual product received may differ. Inverter Model L1 (mm) L2 (mm) H (mm) SG3.0RS-L, SG3.3RS-L SG4.0RS-L, SG4.6RS-L, SG5.0RS-L, SG6.0RS-L Step 2 Place the expansion tubes into the holes. Then secure the wall-mounting bracket to the wall firmly with the expansion bolt sets.
  • Page 39 User Manual 4 Mechanical Mounting Step 3 Lift the inverter and slide it down along the wall-mounting bracket to make sure they match perfectly. Use two screw sets to lock both left and right sides. - - End...

  • Page 40: Electrical Connection

    Electrical Connection Safety Instructions The PV string will generate lethal high voltage when exposed to sunlight. • Operators must wear proper personal protective equipment during electrical connections. • Must ensure that cables are voltage-free with a measuring instrument before touching DC cables. •...
  • Page 41 User Manual 5 Electrical Connection All electrical connections must comply with local and national/regional electrical standards. • Cables used by the user shall comply with the requirements of local laws and regulations. • Only with the permission of the national/regional grid department, the inverter can be connected to the grid.

  • Page 42: Terminal Description

    5 Electrical Connection User Manual • Install the external protective grounding cable first when performing electrical connection and remove the external protective grounding cable last when re- moving the inverter. • Keep the AC output cable and the DC input cable close to each other during electrical connection.

  • Page 43: Electrical Connection Overview

    User Manual 5 Electrical Connection figure 5-1 Terminals (SG3.0RS-L for example) * The image shown here is for reference only. The actual product received may differ. table 5-1 Terminal Description Decisive Volt- Description Name Classification MC4 terminals for PV input. PV1+, PV1–, PV2+, DVC-C The terminal number depends on in-...
  • Page 44 5 Electrical Connection User Manual (A) PV string (B) Inverter (C) Loads (D) Grid (E) AC circuit breaker table 5-2 Cable Requirements Wire Conductor Type Cable Cable Diameter Cross-section Single or multi-core copper wire comply- DC cable 4.7 mm–6.4 mm 4 mm –6 mm ing with 600 V and...

  • Page 45: External Protective Grounding Connection

    AC side grounding terminal are reliably grounded. The grounding connection can be made by other means if they are in accordance with the local standards and regulations, and SUNGROW shall not be held liable for the possible consequences.

  • Page 46: External Protective Grounding Requirements

    5 Electrical Connection User Manual 5.4.1 External Protective Grounding Requirements All non-current carrying metal parts and device enclosures in the PV power system should be grounded, for example, brackets of PV modules and inverter enclosure. When there is only one inverter in the PV system, connect the external protective grounding cable to a nearby grounding point.

  • Page 47: Ac Cable Connection

    AC Circuit Breaker An independent two-pole circuit breaker must be installed on the output side of the inverter to ensure safe disconnection from the grid. The recommended specifications are as follows. Recommended Specification Inverter Model SG3.0RS-L/SG3.3RS-L/SG4.0RS-L/ 32 A SG4.6RS-L/SG5.0RS-L SG6.0RS-L 40 A Testing to AS/NNZS 4777.2:2020 Section for multiple phase combinations has not...

  • Page 48: Assembling The Ac Connector

    5 Electrical Connection User Manual AC circuit breakers should be installed on the output side of the inverter and the grid side to ensure safe disconnection from the grid. • Determine whether an AC circuit breaker with greater overcurrent capacity is re- quired based on actual conditions.
  • Page 49 User Manual 5 Electrical Connection Step 2 Thread the AC cable of appropriate length through the swivel nut, the sealing ring and the housing. Step 3 Remove the cable jacket by less than 45 mm, and strip the wire insulation by 12 mm–16 mm. For SG4.0–...
  • Page 50 5 Electrical Connection User Manual Step 5 Fasten the cable wires onto the corresponding wiring terminals in compliance with the marks. Pull the cable gently backward to make sure the wires are secure. Then, push the wiring ter- minal carrier into the connector housing, by mating the convex on the carrier and concave on the housing, until you hear a "click".

  • Page 51: Installing The Ac Connector

    User Manual 5 Electrical Connection 5.5.3 Installing the AC Connector High voltage may be present in inverter! Ensure all cables are voltage-free before electrical connection. Do not connect the AC circuit breaker until all inverter electrical connections are completed. Step 1 Disconnect the AC circuit breaker and secure it against reconnection. Step 2 Insert the AC connector into the GRID terminal on the bottom side of the inverter.
  • Page 52 5 Electrical Connection User Manual • Make sure the PV array is well insulated to 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 Data". •...

  • Page 53: Pv Input Configuration

    5.6.1 PV Input Configuration • The inverter SG3.0RS-L / SG3.3RS-L has one PV input with one MPP tracker. • The inverters SG4.0RS-L / SG4.6RS-L / SG5.0RS-L / SG6.0RS-L have two PV inputs, each with independent MPP tracker.

  • Page 54: Assembling The Pv Connectors

    5 Electrical Connection User Manual 5.6.2 Assembling the PV Connectors High voltage may be present in the inverter! • Ensure all cables are voltage-free before performing electrical operations. • Do not connect the DC switch and AC circuit breaker before finishing electrical connection.

  • Page 55: Installing The Pv Connectors

    User Manual 5 Electrical Connection Step 4 Check for polarity correctness. If the PV polarity is reversed, the inverter will be in a fault or alarm state and will not operate normally. - - End 5.6.3 Installing the PV Connectors Step 1 Rotate the DC switch to "OFF"...

  • Page 56: Communication Connection

    5 Electrical Connection User Manual Step 3 Connect the PV connectors to corresponding terminals until there is an audible click. Step 4 Seal the unused PV terminals with the terminal caps. - - End Communication Connection 5.7.1 Wireless Communication Module Connection Step 1 Remove the waterproof lid from the COM1 terminal.

  • Page 57: Commissioning

    Commissioning Inspection Before Commissioning Check the following items before starting the inverter: • All equipment has been reliably installed. • DC switch(es) and AC circuit breaker are in the "OFF" position. • The ground cable is properly and reliably connected. •...

  • Page 58: App Preparation

    "7.3 Account Registration". If you have got the account and password from the distributor/installer or SUNGROW, skip this step. Step 3 Download the firmware package to the mobile device in advance. Refer to “Firmware Upa- date”. This is to avoid download failure due to poor on-site network signal.
  • Page 59 User Manual 6 Commissioning Step 1 Open the App, tap in the upper right corner of the interface, and select the correct ac- cess address. figure 6-1 Select Access Address Step 2 Enter the account and password on the login interface, and tap LOGIN to log in. Step 3 Tap in the upper right corner to enter the plant creation interface.
  • Page 60 6 Commissioning User Manual Step 4 Fill in the content according to actual needs, and the parameters containing * are required. Tap Next to enter the next interface. figure 6-2 Plant Creation Settings Parameter Description Name Plant name The name of the plant. Plant type The type of the plant, which should be set corresponding to the actual plant type.
  • Page 61 User Manual 6 Commissioning Parameter Description Name The location of the plant, which can be filled in two ways: • Manually: Manually enter the plant location in the input box. Plant address • Automatically: Tap to automatically obtain the current location or search for the location of the plant, and then tap Confirm.
  • Page 62 6 Commissioning User Manual Step 5 Bind a device through scanning the QR code on the device, manually inputting the device S/ N, or uploading a QR code picture. Tap Confirm after the QR code is identified or the S/N is verified.
  • Page 63 User Manual 6 Commissioning Step 7 Tap Network Configuration to go to the WLAN connection interface. Tap the home net- work in the WLAN list, enter the password, and then tap Confirm. Step 8 Enter the Activate EasyConnect interface, and press the multi-function button on the WiFi —P2 to enable the Easyconnect mode according to the prompt on the screen.
  • Page 64 6 Commissioning User Manual Step 9 Tap Device Initialization to go to the Device initialization interface. Set the initialization protection parameters as needed and tap Settings to return to the commissioning interface. When the country is set to Australia, additionally set the applicable network service provider and then the grid type.
  • Page 65 User Manual 6 Commissioning The image shown here is for reference only. Refer to the actual interface for the supported network service providers. table 6-1 Description of Network Service Provider and Grid Type Network Service Provider Grid Type AS/NZS 4777.2:2015 AS/NZS 4777.2:2020 Australia A AS/NZS 4777.2:2020...

  • Page 66: Initializing The Device

    * For compliance with AS/NZS 4777.2:2020, please select from Australia A/B/C. Please con- tact your electricity grid operator for which region to use. • Please check the country supported by this product at http:// support.sungrow- power.com/. • Set Country/Region to the country/region where the inverter is installed. Oth- erwise, the inverter may report a fault.
  • Page 67 User Manual 6 Commissioning Step 1 If a latest equipment upgrade package is available, the following prompt window pops up. Tap UPDATE NOW to download the latest update package. figure 6-3 Upgrade Reminder Step 2 After download, it would take around 15 minutes to update. After successful upgrade, the screen will show the version numbers before and after the upgrade as well as the upgrade time.
  • Page 68 6 Commissioning User Manual Step 3 Tap Country/Region and select the country where the inverter is installed at. The supported countries and corresponding settings are as follows. Country/Region Setting Belgium ("BE") Belgium Netherlands ("NL") Netherlands Portugal / Turkey / Hungary / Romania / EN50549-1, with proper manual settings Greece / Lithuania Poland ("PL")
  • Page 69 User Manual 6 Commissioning Step 4 When the country is set to Australia, additionally set the applicable network service provider and then the grid type. The image shown here is for reference only. Refer to the actual interface for the supported network service providers.
  • Page 70 6 Commissioning User Manual Network Service Provider Grid Type • ≤ 5 kVA for single-phase & 30 kVA for three-phase CitiPower & Powercor • ＞ 30 kVA three-phase • UE-ST-2008.1: ≤ 10 kVA for single- phase & 30 kVA for three-phase United Energy •...

  • Page 71: Configuring The Plant

    User Manual 6 Commissioning Configuring the Plant The inverter is successfully added to the plant and initialized. Refer to the guidance in pre- vious sections. The distributor/installer who creates a plant for the end user needs to get the end user's e- mail address.
  • Page 72 6 Commissioning User Manual Step 1 The App screen will display the added inverter. Tap NEXT to configure the plant. figure 6-6 Display the Added Inverter Step 2 Fill in the plant information. The fields marked with * must be filled in. figure 6-7 Entering Plant Information Step 3 (Optional) Fill in the tariff information.
  • Page 73 User Manual 6 Commissioning figure 6-8 Entering Tariff Information Step 4 Fill in the end user's e-mail address. The first time you fill in the end user's e-mail address, the system will create an account for the end user and send an email to the end user. The end user can activate the account via the email.
  • Page 74 Tab the inverter to view the live data about voltage, current, power or curve. figure 6-11 Live Data View Function Setting Contact Sungrow service to enable live data function of devices. Once enabled, live data function is available for 3 hours per day by default. To make it available for 24 hours, contact SUNGROW.
  • Page 75 User Manual 6 Commissioning Step 8 Tab BACK to the COMPLETED screen. Tab DASHBOARD to return and manually refresh the page until the newly created plant is displayed with status commissioned. - - End...

  • Page 76: Isolarcloud App

    Users can also view inverter information and set parameters through the App. * To achieve direct login via WLAN/Bluetooth, the wireless communication module devel- oped and manufactured by SUNGROW is required. The iSolarCloud App can also establish communication connection to the inverter via Ethernet connection.

  • Page 77: Account Registration

    User Manual 7 iSolarCloud App Account Registration The account distinguishes two user groups, end user and distributor/installer. • The end user can view plant information, create plants, set parameters, share plants, etc. • The distributor/installer can help the end user to create plants, manage, install, or main- tain plants, and manage users and organizations.

  • Page 78: Login

    7 iSolarCloud App User Manual Step 3 Select Owner or Retailer/Installer to enter the corresponding screen. Step 4 Fill in the registration information, including email, verification code, password and affirmance and country (region). The distributor/installer has the permission to fill in the company name and the code of upper level installer/distributor.

  • Page 79: Login Procedure

    User Manual 7 iSolarCloud App 7.4.2 Login Procedure Step 1 For the WiFi-P2 module, press the multi-function button 3 times to enable the WLAN hotspot. No password is required and the valid time is 30 minutes. figure 7-1 Enabling the WLAN Hotspot Step 2 Connect the mobile phone to the WLAN network named as "SG-xxxxxxxxxxx"...
  • Page 80 7 iSolarCloud App User Manual Step 4 Tap Confirm, then enter the password and tap LOGIN.Or tap MANUAL CONNECTION at the bottom of the interface and select WiFi-P2, then enter the password and tap LOGIN. • If the WiFi signal, serial number or inverter related data information cannot be found, unplug and reinsert the WiFi-P2 or press the multi-function button of the WiFi-P2 three times.

  • Page 81: Initial Settings

    User Manual 7 iSolarCloud App figure 7-3 WLAN Local Access Step 6 After finishing the settings, tap TUNR ON DEVICE at the upper right corner and the device will be initialized. The App will send start instructions and the device will start and operate. Step 7 After initialization settings, the App will return automatically to the home page.

  • Page 82: Home

    7 iSolarCloud App User Manual figure 7-4 App Function Tree Map Home Home page of the App is shown in the following figure.

  • Page 83: Run Information

    User Manual 7 iSolarCloud App figure 7-5 Home table 7-1 Home Page Description Description Name Present operation state of the inverter Inverter state Shows the PV power generation power, feed-in power, etc. Energy flow The line with an arrow indicates energy flow between con- chart nected devices, and the arrow pointing indicates energy flow direction.

  • Page 84: Records

    7 iSolarCloud App User Manual table 7-2 Description of Run Information Description Item Shows voltage and current of every PV string. PV information Shows basic information such as running state, on-grid running time, Inverter negative voltage to grid, bus voltage, internal air temperature, inver- information ter efficiency, etc.
  • Page 85 User Manual 7 iSolarCloud App figure 7-7 Chart The App displays power generation records in a variety of forms, including daily power gen- eration graph, monthly power generation histogram, annual power generation histogram and total power generation histogram. table 7-3 Description of Power Curve Description Item Daily...
  • Page 86 7 iSolarCloud App User Manual figure 7-8 Fault Alarm Record Click to select a time segment and view corresponding records. Select one of the records in the list and click the record, to view the detailed fault info as shown in following figure. figure 7-9 Detailed Fault Alarm Information Event Record Tap Event Record to enter the screen, as shown in the following figure.

  • Page 87: More

    User Manual 7 iSolarCloud App figure 7-10 Event Record Click to select a time segment and view corresponding records. 7.10 More Tap More on the navigation bar to enter the corresponding screen, as shown in the following figure. figure 7-11 More In addition to viewing the WLAN configuration and App software version, the More screen supports the following operations: •...

  • Page 88: System Parameters

    7 iSolarCloud App User Manual 7.10.1 System Parameters Tap “Settings→System Parameters” to enter the corresponding interface, as shown in the following figure. figure 7-12 System Parameters * The image shown here is for reference only. Boot/Shutdown Tap Boot/Shutdown to send the boot/shutdown instruction to the inverter. For Australia and New Zealand, when the DRM state is DRM0, the "Boot"...

  • Page 89: Power Regulation Parameters

    User Manual 7 iSolarCloud App figure 7-14 PID Setting table 7-4 PID Parameter Description Description Parameter Set enabling/disabling of the PID night recovery function. PID night PID Recovery recovery function operates between 22:00 pm and 5:00 am by default. The Anti-PID function is performed during the day when connected Anti-PID to the grid.
  • Page 90 7 iSolarCloud App User Manual figure 7-15 Active Power Regulation table 7-5 Description of Active Power Regulation Parameters Description Range Parameter Active Power Soft Start Switch for activating/deactivating the function On/Off after Fault of active power soft start after a fault occurs Active Power Soft Start The soft start time required for raising active 1 s–1200 s...
  • Page 91 User Manual 7 iSolarCloud App figure 7-16 Reactive Power Regulation table 7-6 Description of Reactive Power Regulation Parameters Description Range Parameter Reactive Power Set- Switch for activating/deactivating the function On/Off ting Persistence of reactive power setting persistence Reactive Power Regu- Off/PF/Qt/Q Off/PF/Qt/Q(P)/Q(U) lation Mode...
  • Page 92 7 iSolarCloud App User Manual table 7-7 "Q(P)" Mode Parameters Explanation Parameter Explanation Range Q(P) Curve Select corresponding curve according to local A, B, C regulations QP_P1 Output power at point P1 on the Q(P) mode curve 0.0 %–100.0 % (in %) QP_P2 Output power at point P2 on the Q(P) mode curve...
  • Page 93 User Manual 7 iSolarCloud App "Q(U)" Mode The reactive power output of the inverter varies in response to the grid voltage. table 7-8 "Q(U)" Mode Parameter Explanation Explanation Range Parameter Select corresponding curve according to local Q(U) curve A, B, C regulations Hysteresis Voltage hysteresis ratio on the Q(U) mode curve...

  • Page 94: Communication Parameters

    7 iSolarCloud App User Manual figure 7-18 Reactive Power Regulation Curve in Q(U) Curve 7.10.4 Communication Parameters Tap “Settings→Communication Parameters” to enter the corresponding screen, as shown in the following figure. The device address ranges from 1 to 246. figure 7-19 Communication Parameters 7.10.5 Firmware Update To avoid download failure due to poor on-site network signal, it is recommended to download the firmware package to the mobile device in advance.

  • Page 95: Auto-Test

    User Manual 7 iSolarCloud App Step 5 Return to the Firmware Download screen, tap in the upper right corner of the screen to view the downloaded firmware upgrade package. Step 6 Login the App via local access mode. Refer to "7.4 Login".
  • Page 96 7 iSolarCloud App User Manual figure 7-21 Auto-test Result Clear Auto-test Fault Tap “Clear Auto-test Fault→CONFIRM” to clear the auto-test fault. figure 7-22 Clear Auto-test Fault...

  • Page 97: System Decommissioning

    System Decommissioning Disconnect the Inverter Danger of burns! Even if the inverter is shut down, it may still be hot and cause burns. Wear protec- tive gloves before operating the inverter after it cools down. 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 sources.

  • Page 98: Disposal Of Inverter

    8 System Decommissioning User Manual Step 1 Refer to "5 Electrical Connection", for the inverter disconnection of all cables in reverse steps. In particular, when removing the DC connector, use an MC4 wrench to loosen the locking parts and install waterproof plugs. Step 2 Refer to "4 Mechanical Mounting", to dismantle the inverter in reverse steps.

  • Page 99: Troubleshooting And Maintenance

    App or the LCD. Modify the overvoltage protection values with the con- sent of the local electric power operator. 3. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the fault persists. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 100 2. Check whether the protection parameters are appropriately set via the App or the LCD. 3. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the fault persists. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 101 App or the LCD. 3. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the fault persists. 1. Check whether the corresponding string is of reverse polarity.
  • Page 102 3. Check if the DC fuse is damaged. If so, replace Alarm the fuse. 4. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the alarm persists. *The code 548 to code 563 are corresponding to string 1 to string 16 respectively.
  • Page 103 If so, replace the dam- aged cable and secure terminals to ensure a reli- able connection. 5. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the fault persists. 1. Check whether the AC cable is correctly connected.
  • Page 104 Close the AC and DC switches in turn 15 248–255, 300– minutes later and restart the system. 322, 324–328, 3. Contact Sungrow Customer Service if the pre- 401–412, 600– ceding causes are ruled out and the fault persists. 603, 605, 608, 612, 616, 620, 622–624, 800,...
  • Page 105 Close the AC and DC switches in turn 15 364-395 minutes later and restart the system. Overvoltage Fault 2. If the fault persists, please contact Sungrow Power Customer Service. 1. Check whether the number of PV modules of the corresponding string is less than other strings.

  • Page 106: Maintenance

    3. Do not reinsert the faulty strings before the grounding fault is cleared; 4. If the fault is not caused by the foregoing rea- sons and still exists, contact Sungrow Customer Service. 1. It is prohibited to disconnect the DC switch when the DC current is greater than 0.5 A when...
  • Page 107 To avoid the risk of electric shock, do not perform any other maintenance opera- tions beyond those described in this manual. If necessary, contact your distributor first. If the problem persists, contact SUNGROW. Otherwise, the losses caused is not covered by the warranty.

  • Page 108: Routine Maintenance

    9 Troubleshooting and Maintenance User Manual 9.2.2 Routine Maintenance Item Method Period Six months to a year Check the temperature and dust of the inverter. Clean the inverter enclosure if Device clean (depending on the dust con- necessary. tents in air) Check whether all cable are firmly con- nected in place.

  • Page 109: Appendix

    10 Appendix 10.1 Technical Data Parameter SG3.0RS-L SG3.3RS-L SG4.0RS-L Input (DC) Recommended max. PV in- 4.5 kWp 4.95 kWp 6 kWp put power 600 V Max. PV input voltage Min. operating PV voltage / 40 V / 50 V Start-up input voltage...
  • Page 110 10 Appendix User Manual Parameter SG3.0RS-L SG3.3RS-L SG4.0RS-L Feed-in phases / connec- 1 / 1 tion phases Efficiency Max. efficiency / European 97.8 % / 97.3 % 97.8 % / 97.1 % 97.9 % / 97.2 % efficiency Protection Grid monitoring...
  • Page 111 User Manual 10 Appendix (1) The inverter enters standby state when the input voltage ranges between 560 V and 600 Parameter SG4.6RS-L SG5.0RS-L SG6.0RS-L Input (DC) Recommended max. PV in- 6.9 kWp 7.5 kWp 9 kWp put power 600 V Max.
  • Page 112 10 Appendix User Manual Parameter SG4.6RS-L SG5.0RS-L SG6.0RS-L Max. efficiency / European 97.9 % / 97.3 % 97.9 % / 97.5 % efficiency Protection Grid monitoring DC reverse polarity protection AC short circuit protection Leakage current protection DC type II / AC type II Surge Protection DC switch PV string current...

  • Page 113: 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 114 Sungrow Power Supply Co., Ltd. www.sungrowpower.com...

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