Sungrow S450S User Manual
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Sungrow S450S User Manual

Sungrow S450S User Manual

Single-phase microinverter
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User Manual
Single-Phase Microinverter
S450S/S800S/S1000S/S1600S
S450S/S800S/
S1000S/S1600SSingle-Phase
MicroinverterUser ManualS450_
S450_800_1000_1600S-UEN-Ver12-202503

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Summary of Contents for Sungrow S450S

  • Page 1 User Manual Single-Phase Microinverter S450S/S800S/S1000S/S1600S S450S/S800S/ S1000S/S1600SSingle-Phase MicroinverterUser ManualS450_ 800_1000_1600S-UEN-Ver12-202503 S450_800_1000_1600S-UEN-Ver12-202503...

  • 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 authorization.
  • Page 5 Security Declaration For details on the product’s network security vulnerability response process and vulnerability disclosure, please visit the following website: https://en.sungrowpower.com/security-vulner- ability-management. For more information on network security, please refer to the user manual of the communi- cation module or the Data Logger that comes with the product. 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-...

  • Page 6: Privacy Policy

    Privacy Policy The Microinverter device itself does not collect any personal data or telemetry data. It may collect information such as power generation data and product operation data for calculation purposes. You can check and manage such information on the iSolarCloud App. The privacy policy can be found on the login screen of the App.

  • Page 7: Table Of Contents

    2.2 Microinverter ....................4 2.3 Application Scenarios ..................5 2.3.1 Rooftop PV System ................5 3 Hardware Design ....................8 3.1 Product Models ....................8 3.2 S450S ......................9 3.3 S800S/S1000S ....................10 3.4 S1600S ....................... 11 3.5 Symbols on Product..................11 4 Installation Instructions ..................13 4.1 Preparation Before Installation...............13 4.1.1 Safety During Mounting ...............13...
  • Page 8 4.4.2 Antenna Installation................28 4.4.3 Power Supply and CT Connection ............29 5 Commissioning ....................32 5.1 Commissioning Procedure ................32 5.2 Operation Parameter Setting on iSolarCloud App..........32 5.2.1 Background Information...............32 5.2.2 Device Configuration (Option 1) ............34 5.2.3 Device Configuration (Option 2) ............46 5.2.4 Power Flow (with iHomeManager) ............46 6 Remote Monitoring ..................49 6.1 Firmware Update..................49...

  • Page 9: 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 10 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 11: Product Description

    Product Description Microinverter-based Grid-connected PV System System Introduction The microinverter-based grid-connected PV system is mainly composed of the PV modules, grid-connected PV microinverter ("microinverter"), communication and data acquisition de- vice (optional), monitoring platform, and power grid. The system structure is shown below. As an integral part of the PV power system, the microinverter converts the DC power gener- ated from the PV modules into the grid-compatible AC power and feeds it to the grid.

  • Page 12: Microinverter

    2 Product Description User Manual some possible faults and alarms in the earliest stage, thus ensuring the device's stable oper- ation. For more information, please refer to the user manual for the iSolarCloud monitoring platform. iSolarCloud App The iSolarCloud App is a mobile application designed for new energy power plant manage- ment.

  • Page 13: Application Scenarios

    Application Scenarios Given its high power generation efficiency and great safety performance, the microinverter has been widely applied in residential PV systems. The S450S,S800S,S1000S and S1600S are single-phase microinverters. Do not use them in three-phase systems. 2.3.1 Rooftop PV System Just like the balcony PV systems, users can use microinverters to increase the yield of roof- top PV systems also.
  • Page 14 2 Product Description User Manual The user may stand at the position of the router, log in via local access to the microinverter on the iSolarCloud App, and check the router's Wi-Fi signal strength on the network settings screen. After the Wi-Fi signal has stabilized, see if an extender is needed. Check the signal strength of the router's Wi-Fi in the network list.
  • Page 15 User Manual 2 Product Description • Read the manuals for the router and Wi-Fi extender before use. Ensure the number of devices connected is less than the limit specified by the router or Wi-Fi extender. Otherwise, the device may not be able to access the network. •...

  • Page 16: Hardware Design

    Hardware Design Product Models Product Models • S450S, 1-in-1 • S800S, 2-in-1 • S1000S, 2-in-1 • S1600S, 4-in-1 figure 3-1 Product Model Definition Description Definition Brand and model S: SUNGROW Power rating 1600: The product has a rated power of 1600W...

  • Page 17: S450S

    User Manual 3 Hardware Design S450S External Design figure 3-2 External Design Dimensions figure 3-3 Dimensions...

  • Page 18: S800S/S1000S

    3 Hardware Design User Manual S800S/S1000S External Design figure 3-4 External Design Dimensions figure 3-5 Dimensions...

  • Page 19: S1600S

    User Manual 3 Hardware Design S1600S External Design figure 3-6 External Design Dimensions figure 3-7 Dimensions Symbols on Product Symbol Explanation Do not dispose of the inverter together with household waste. Read the user manual before maintenance! CE mark of conformity. EU/EEA Importer.
  • Page 20 3 Hardware Design User Manual Symbol Explanation TÜV mark of conformity. Burn danger due to the hot surface that may exceed 60°C. Danger to life due to high voltages! Only qualified personnel can open and service the inverter. Do not touch live parts for 10 minutes after disconnection from the power sources.

  • Page 21: Installation Instructions

    " " 4.1.2 Installation Environment Requirements" " . In case the environment where the product is in- stalled does not meet the requirements, SUNGROW shall not be held liable for any property damage arising therefrom. Improper handling may cause personal injury! •...

  • Page 22: Installation Space Requirements

    • Please consult SUNGROW before installing microinverters outdoors in areas prone to salt damage, which mainly are coastal areas within 500 meters of the coast. The sedi- mentation 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 23: Pv Module Requirements

    To install the microinverter on the wall, make sure it is at least 20 mm away from the wall surface. • Avoid placing the device in direct sunlight. It is recommended to install it under the PV module. 4.1.4 PV Module Requirements S450S S800S S1000S S1600S Recommended 375W –...

  • Page 24: System Wiring Diagram

    S1600S microinverter as an example. figure 4-1 Product Accessories for Rooftop PV System table 4-1 Product Accessories Description Definition Model Included in the scope of de- S450S/S800S/ livery as standard Microinverter S1000S/S1600S equipment. Users place separate or- Sealing cap for T ders.

  • Page 25: Mounting And Wiring

    Deformation or damage may impair the device's performance or normal operation. • Do not lift the cable by hand when handling the device. The S450S, S800S and S1000S microinverters do not have handles. You may move the device by gripping the groove on its back.
  • Page 26 4 Installation Instructions User Manual figure 4-2 Handling Notice Step 1 Tear off the QR code label on the device enclosure. Two identical QR code labels are pro- vided on the enclosure. Take down one of them and stick it to the appointed location of the Quick Installation Guide.

  • Page 27: Attach Ac Male Connector

    User Manual 4 Installation Instructions Step 3 Mount the microinverter. Fix the microinverter to the bracket with M8 screws at a torque of 9.0 N.m, as shown in the figure below. Washers should be added to the M8 screws by the user separately. Washers with an inner diameter of 8.5 mm and a thickness of 2.5 mm are recommended;...
  • Page 28 4 Installation Instructions User Manual Step 2 Strip the cable. Strip the protection layer and insulation layer by a proper length, as specified in the figure below. Step 3 Crimp the terminals. Crimp the cold-pressed terminals onto the wires using a crimping tool. Step 4 Wiring.

  • Page 29: Wiring Steps

    User Manual 4 Installation Instructions - - End 4.3.3 Wiring Steps • It is recommended to make a protective ground connection. Lack of protective grounding or unreliable grounding may lead to personal injuries. • Ensure the PV cables are connected with correct polarity during DC wiring. Oth- erwise, the microinverter may not operate properly.
  • Page 30 4 Installation Instructions User Manual Step 2 Connect the DC connectors. Attach the DC connectors of the microinverter to those of the PV modules, as shown in the figure below. Make sure the polarity is correct. • The PV1 channel acts as the host and must be connected with PV module. If it is left unconnected, the system may report a fault and cannot operate properly.
  • Page 31 User Manual 4 Installation Instructions Step 4 (Optional) Connect the extension cable. An extension cable is required if the distance ex- ceeds 2.8m. Connect the T-type AC trunk cable to the other end of the extension cable, as shown in the figure below. Make sure the connection is secure. Step 5 Connect the AC male connector.

  • Page 32: Ihomemanager Installation And Wiring (Optional)

    For detailed information about the iHomeManager, please refer to the user manual. You can access the manual by scanning the QR code below or by visiting https://support.sungrow- power.com. 4.4.1 Installation Methods The iHomeManager must be installed in a power distribution box that has an SPD inside. It can be mounted on a wall or a guide rail, based on the user's needs.
  • Page 33 User Manual 4 Installation Instructions figure 4-3 Mounting Holes Step 1 Select an appropriate installation position. Step 2 Measure and determine the positions of the two mounting holes using a tape measure. The distance between them is 56mm. Then, use a marker to mark the hole positions for drilling on the wall.
  • Page 34 4 Installation Instructions User Manual Step 3 Drill holes at the marked positions using a hammer drill. • Hole diameter on a metal wall: 5mm; • Hole diameter on a concrete wall: 6mm; Step 4 Fit all the expansion sleeves into the holes using a rubber mallet. Skip this step if the device is mounted on a metal wall.

  • Page 35: Mounted On A Guide Rail

    User Manual 4 Installation Instructions Step 5 Fix the expansion bolts or fasteners into the wall, approximately 5mm higher than the wall surface. Then, hang the iHomeManager to the bolts on the concrete or metal wall by the mounting holes on its back. Step 6 Gently shake the iHomeManager to make sure the installation is secure.

  • Page 36: Antenna Installation

    4 Installation Instructions User Manual Step 3 Slightly tip the iHomeManager to have its clips latch onto the guide rail. Step 4 Push the bottom clips upward. Make sure the iHomeManager firmly fits on the guide rail. Step 5 Install the end brackets on the guide rail at both sides of the iHomeManager to restrict it in a fixed position.

  • Page 37: Power Supply And Ct Connection

    User Manual 4 Installation Instructions • You have reserved an opening for the antenna (hole diameter: 20mm). Step 1 Lead the nut end of the antenna cable to the iHomeManager. Step 2 Rotate the nut clockwise to tighten it onto the WLAN antenna connector on the iHomeManager.
  • Page 38 4 Installation Instructions User Manual Step 3 Connect the other end of the AC cable to the corresponding position on the household circuit breaker.
  • Page 39 User Manual 4 Installation Instructions Step 4 Connect the CT wires to the GRID.CT terminal, and clamp the CT to the AC cable with the ar- row pointing in the direction of the load. The iHomeManager comes with three CTs. Connect only one CT to the microinverter.

  • Page 40: Commissioning

    Commissioning Commissioning Procedure Inspection Before Powering on Perform inspections as follows before turning on the microinverter for the first time, and make sure the requirements below are all met. • All devices are properly installed. • The AC circuit breaker is set to “OFF”. •...
  • Page 41 User Manual 5 Commissioning figure 5-1 iSolarCloud App To fully utilize the features of the iSolarCloud App, please grant it access to your camera, location, and network when you first open the App. The microinverter has its own Wi-Fi function too. Users can complete the network settings for the microinverter to access it to the home wireless network, so that it can upload its pro- duction and performance data to iSolarCloud over the Internet.

  • Page 42: Device Configuration (Option 1)

    5 Commissioning User Manual figure 5-2 Grid-connection Operation Configuration Flow Chart 5.2.2 Device Configuration (Option 1) Proceed to create a plant after logging in to iSolarCloud. During the process of adding a de- vice, finalize device initialization and network settings. Then, complete creating the plant.
  • Page 43 User Manual 5 Commissioning Step 1 Create an account. Open the iSolarCloud App, and tap Register on the login screen. Then, select the server and type of account and fill in the required information to create a Retail/In- staller account, as shown in the figure below.
  • Page 44 5 Commissioning User Manual Step 2 Create a plant. Log in to your iSolarCloud App account. Following the onscreen instructions, tap Create Plant, fill in the general information about the plant, and then save, as shown in the figure below. table 5-1 Parameters Required for Creating a Plant Description Parameter...
  • Page 45 User Manual 5 Commissioning Description Parameter *City The city where the plant is located. The postal code of the place where the plant is located. Postal Code *Country/Region The country/region where the plant is located. The time zone of the place where the plant is located. *Time Zone The model of the PV module actually used in the plant.
  • Page 46 5 Commissioning User Manual Step 3 Add a device. After completing the plant information, the system will go to the “Create Plant” screen. Tap Device Setup to add the device. You can add the microinverter device to the plant manually, or by scanning its QR code. •...
  • Page 47 User Manual 5 Commissioning • Connect only one mobile phone to the microinverter's hotspot at a time. Other- wise, it may lead to a conflict issue. • To keep your account secure, after logging in to the system, change your pass- word immediately and log in again using the new one.
  • Page 48 5 Commissioning User Manual Step 4 Configure the network connection for the microinverter. Once connected to the microinver- ter's hotspot, the App goes to Device Setup. Establish a reliable network connection for the microinverter, by referring to the instructions below.
  • Page 49 User Manual 5 Commissioning When you change the router, please set up the network connection again. The steps are: log in to the iSolarCloud App, tap the WLAN Configuration, and select the home network to connect to it.
  • Page 50 Microinverters for which network settings are synchronized in this step will be added to the plant's device list simultaneously. The S450S, S800S, S1000S and S1600S microinverters support the 2.4GHz band only. If the target network is not shown in the list of available home networks, check whether the 2.4GHz band is enabled for the router.
  • Page 51 User Manual 5 Commissioning Step 6 Set the country/region and grid type. Tap Device Initialization to go to “Initialize Protection Parameter”, as shown in the figure below. You can select the country/region and the grid type based on the actual situation. Step 7 (Optional) Device check.
  • Page 52 5 Commissioning User Manual Step 8 (Optional) If the iHomeManager has been installed, add it to the plant and configure it ac- cordingly. First, tap Add Device, click “T”, and enter the device S/N. Then, connect to the iHomeManager's hotspot by following the onscreen instructions and configure its network connection, as demonstrated below.
  • Page 53 User Manual 5 Commissioning Step 10 Tariff setting. After the device has been added, the system will go to the “Create Plant” screen. Tap Tariff. You can set Feed-in Tariff and Consumption Tariff by following the onscreen instructions, and tap Save, as shown in the figure below. Step 11 The plant that has been created will be shown on the "Monitoring"...

  • Page 54: Device Configuration (Option 2)

    5 Commissioning User Manual Step 12 Select the Device tab to view the devices in the plant. If you have synchronized the network settings for Micro Inverter 10 and Micro Inverter 11 in Step 5, it will be automatically added to the plant and displayed in the device list.
  • Page 55 User Manual 5 Commissioning In the self-consumption scenario, if the load power demand is less than the PV power output, the excess output will be fed into the grid. In this case, the power flow diagram will indicate that the PV system is supplying power to the grid, as illustrated below. Below the power flow diagram, you can view information such as daily yield, real-time power and earnings (revenue).
  • Page 56 5 Commissioning User Manual...

  • Page 57: Remote Monitoring

    To further improve the device's performance, stability, and reliability, or to fix the known prob- lems and vulnerabilities, SUNGROW may release new versions of firmware from time to time and notify users accordingly. Please update the firmware regularly to ensure the devi- ce's reliable operation.

  • Page 58: Viewing Layout

    6 Remote Monitoring User Manual Step 2 Choose the Microinverter tab. Select the microinverter, and tap Firmware Update. Set the Single Device Update Timeout to 1h (user-definable), and tap Update to start an update, as shown in the figure below. If the firmware update is not completed within the preset time, the system will indi- cate a firmware update timeout.
  • Page 59 User Manual 6 Remote Monitoring – View microinverter information: Tap a microinverter in the layout to check its energy production information. ♦ Choose Information at the lower left of the screen to view more information about the microinverter, such as General Information, Fault, Curve, Settings, and Remote Signaling Status.
  • Page 60 6 Remote Monitoring User Manual – Physical Layout: Shows the installation position and angle of the microinverter and PV modules. – Logical Layout: Shows the connection between the microinverter and PV modules and their assignment status. • View power yield data: –...
  • Page 61 User Manual 6 Remote Monitoring • View device status and quantity: Tap at the lower left of the layout view to check the status and number of microinverters.
  • Page 62 6 Remote Monitoring User Manual • View device: Tap Device at the lower left of the layout view to check the device S/N and assignment status. • View curves: Tap Curve at the lower right of the layout view. You can choose a module, and tap Curve to check its energy production data displayed as a curve.

  • Page 63: Checking Microinverter Status

    User Manual 6 Remote Monitoring Checking Microinverter Status Choose the Device tab on the top of the screen to check the devices in the plant and their status.

  • Page 64: Resetting Isolarcloud Account Password

    6 Remote Monitoring User Manual If a microinverter in the list remains offline for an extended period (excluding the situation that the microinverter goes offline at night, which is normal), follow the troubleshooting steps below. • Check that the home router network is functioning properly. •...

  • Page 65: Resetting Microinverter Password

    User Manual 6 Remote Monitoring Step 1 Tap Forgot Password on the login screen. Step 2 Enter the account name, and tap Next. You may not be able to reset your password if: • The account is not associated with an email address. •...
  • Page 66 6 Remote Monitoring User Manual Step 1 Open the plant that has been created, and tap Device. Step 2 Choose the target microinverter. Step 3 Tap Communication Device Parameter Setting in the scrolling menu bar, and choose Common Parameters. Step 4 Tap Reset Login Password. Step 5 Tap Enable.

  • Page 67: Turning On Microinverter Hotspot

    User Manual 6 Remote Monitoring Turning on Microinverter Hotspot In case the microinverter's hotspot goes off from timeout, you can turn it on again by follow- ing the steps below. Step 1 Open the plant that has been created, and choose Device. Step 2 Choose the target microinverter.

  • Page 68: Maintenance

    To avoid the risk of electric shock, do not perform any other maintenance oper- ations beyond those described in this manual. If necessary, contact your dis- tributor first. If the problem persists, contact SUNGROW. Otherwise, the losses caused is not covered by the warranty.

  • Page 69: Routine Maintenance

    User Manual 7 Maintenance Touching the PCB or other static sensitive components may cause damage to the device. • Do not touch the circuit board unnecessarily. • Observe the regulations to protect against electrostatic and wear an anti-static wrist strap. Routine Maintenance Item Method...

  • Page 70: Microinverter Replacement On Isolarcloud App

    7 Maintenance User Manual Step 2 To remove the AC connector, use a disconnect tool. Step 3 Remove the DC connector, use a connector wrench to loosen the locking parts. Connector wrench prepared by users. Step 4 Remove the grounding cable. Step 5 Unscrew the fixing screws using a proper tool.
  • Page 71 User Manual 7 Maintenance Step 2 Tap the plant, and choose Device. Then, tap and choose Device Replacement to add the new microinverter to the plant. The steps are shown below. For how to add a new device, "5.2.2 Device Configuration (Option 1)".

  • Page 72: System Decommissioning

    7 Maintenance User Manual System Decommissioning 7.4.1 Disconnecting the Microinverter Danger of burns! Even after the microinverter has been stopped, it may still be hot and cause burns. Wait about 30 min for the microinverter to cool down, and then perform operations on it wearing protective gloves.
  • Page 73 User Manual 7 Maintenance Please dispose of the microinverter in compliance with the applicable local regula- tions and standards to avoid property damage or casualties. Some parts or components of the microinverter may contaminate the environment. Therefore, please dispose of the microinverter or its parts or components accord- ing to the applicable regulations for electronic waste disposal in the place where the microinverter is located.

  • Page 74: Troubleshooting And Maintenance

    Troubleshooting and Maintenance Indicator Status and Troubleshooting LED Indicator Description Color LED Status Indicator Steady on On-grid operation Blue Blinking Standby or starting up Fault (e.g., microinverter fault, update Steady on failed) Blinking Update in progress Grey Power off If there is a fault in the microinverter, the fault information will be shown on the iSolarCloud App.
  • Page 75 User Manual 8 Troubleshooting and Maintenance Troubleshooting Methods Fault Code Fault Name Grid under- Generally, the inverter will reconnect to the grid once the voltage grid returns to normal. If this fault occurs repeatedly: 1. Measure the actual grid voltage. Contact your local power company for help if the grid voltage is lower than the set value;...
  • Page 76 8 Troubleshooting and Maintenance User Manual Troubleshooting Methods Fault Code Fault Name Generally, the inverter will reconnect to the grid once the grid returns to normal. If this fault occurs repeatedly: 1. Measure the actual grid voltage and frequency. Con- Grid under- tact your local power company for help if the grid parame- frequency...
  • Page 77 User Manual 8 Troubleshooting and Maintenance Troubleshooting Methods Fault Code Fault Name Generally, the inverter will reconnect to the grid once the grid returns to normal. If this fault occurs repeatedly: 1. Measure the actual grid voltage. Contact your local power company for help if the grid voltage exceeds the set range;...
  • Page 78 8 Troubleshooting and Maintenance User Manual Troubleshooting Methods Fault Code Fault Name Generally, the inverter will reconnect to the grid automati- cally once the ambient temperature returns to normal. If this fault occurs repeatedly: Ambient tem- 1. Check if the ambient temperature exceeds the operat- perature too ing range required by the device;...
  • Page 79 SUNGROW Customer Service. Contact your dealer if you have already tried the “Troubleshooting Methods” listed in the table above but the problem is still not resolved. In case the dealer cannot help you solve the problem, please contact SUNGROW.

  • Page 80: Appendix

    Appendix Technical Data Type S450S S800S S1000S S1600S designation Input (DC) Recommended PV module 375 W - 570 W 375 W - 650 W 375 W - 570 W power range Max. PV input 60 V voltage Min. PV input...
  • Page 81 User Manual 9 Appendix Type S450S S800S S1000S S1600S designation AC voltage 154 V - 277 V range Rated grid 50 Hz / 60 Hz frequency 45 Hz - 55 Hz Grid frequency range 55 Hz - 65 Hz Harmonic (THD) <...

  • Page 82: Quality Assurance

    During the warranty period, the customer shall provide the product purchase invoice and date. In addition, the trademark on the product shall be undamaged and legible. Otherwise, SUNGROW has the right to refuse to honor the quality guarantee. The warranty period is 15 years and the software service period is 15 years.

  • Page 83: Contact Information

    The fault or damage is caused by installation, repairs, modification, or disassembly per- formed by a service provider or personnel not from SUNGROW. • The fault or damage is caused by the use of non-standard or non-SUNGROW compo- nents or software. •...
  • Page 84 Sungrow Power Supply Co., Ltd. www.sungrowpower.com...

This manual is also suitable for:

S800sS1000sS1600s

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