Sungrow SG3.0RT User Manual
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Sungrow SG3.0RT User Manual

3-phase pv grid-connected inverter
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User Manual
3-Phase PV Grid-Connected Inverter
SG3.0RT / SG4.0RT / SG5.0RT / SG6.0RT / SG7.0RT /
SG8.0RT / SG10RT / SG12RT / SG15RT / SG17RT /
SG20RT
SG3.0RT /
SG4.0RT / SG5.0RT / SG6.0RT /
SG7.0RT / SG8.0RT / SG10RT /
SG12RT / SG15RT / SG17RT /
InverterUser ManualSG3.0-20RT-
UEN-Ver18-202211
SG3.0-20RT-UEN-Ver18-202211

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Summary of Contents for Sungrow SG3.0RT

  • Page 1 User Manual 3-Phase PV Grid-Connected Inverter SG3.0RT / SG4.0RT / SG5.0RT / SG6.0RT / SG7.0RT / SG8.0RT / SG10RT / SG12RT / SG15RT / SG17RT / SG20RT SG3.0RT / SG4.0RT / SG5.0RT / SG6.0RT / SG7.0RT / SG8.0RT / SG10RT /...

  • 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

    (PV) system. Readers can get additional information at www.sungrowpower. or on the webpage of the respective component manufacturer. Validity This manual is valid for the following model of low-power grid-connected PV string inverters: • SG3.0RT • SG4.0RT • SG5.0RT •...
  • Page 5 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 7: Table Of Contents

    Contents All Rights Reserved .....................I About This Manual......................II 1 Safety Instructions ....................1 1.1 Unpacking and Inspection ................1 1.2 Installation Safety ...................2 1.3 Electrical Connection Safety................2 1.4 Operation Safety ....................4 1.5 Maintenance Safety ..................4 1.6 Disposal Safety ....................5 2 Product Description ..................6 2.1 System Introduction ..................6 2.2 Product Introduction..................7...
  • Page 8 5.2 Terminal Description ..................26 5.3 Electrical Connection Overview ..............28 5.4 External Protective Grounding Connection .............29 5.4.1 External Protective Grounding Requirements ........29 5.4.2 Connection Procedure.................30 5.5 AC Cable Connection ...................31 5.5.1 AC Side Requirements ................31 5.5.2 Assembling the AC Connector (< 15 kW) ..........32 5.5.3 Installing the AC Connector (<...
  • Page 9 7.2 Installing the App ..................70 7.3 Account Registration..................71 7.4 Login ......................72 7.4.1 Requirements ..................72 7.4.2 Login Procedure .................72 7.5 Initial Settings....................74 7.6 Function Overview..................75 7.7 Home ......................76 7.8 Run Information....................77 7.9 Records .......................77 7.10 More ......................80 7.10.1 System Parameters................81 7.10.2 Operation Parameters ...............81 7.10.3 Power Regulation Parameters............83 7.10.4 Communication Parameters...............89 7.10.5 Firmware Update ................89...

  • Page 11: Safety Instructions

    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 12: Installation Safety

    1 Safety Instructions User Manual 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 13 User Manual 1 Safety Instructions Danger to life due to a high voltage inside the inverter! • Be sure to use special insulation tools during cable connections. • Note and observe the warning labels on the product, and perform operations strictly following the safety instructions.

  • Page 14: Operation Safety

    1 Safety Instructions User Manual Operation Safety Please comply with the following requirements when the product is running: • Do not touch its enclosure. • It is strictly forbidden to plug and unplug any connector on the inverter. • Do not touch any wiring terminal of the inverter. Otherwise, electric shock may occur.

  • Page 15: Disposal Safety

    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 16: Product Description

    Description Item Note Compatible with monocrystalline silicon, polycrystalline silicon, PV strings and thin-film modules without grounding SG3.0RT, SG4.0RT, SG5.0RT, SG6.0RT, SG7.0RT, SG8.0RT, Inverter SG10RT, SG12RT, SG15RT, SG17RT, SG20RT Metering device Meter cupboard with power distribution system Utility grid TT, TN-C, TN-S, TN-C-S...

  • Page 17: Product Introduction

    User Manual 2 Product Description Product Introduction Model Description The model description is as follows (take SG10RT as an example): Appearance The following figure shows the appearance of the inverter. The image shown here is for reference only. The actual product received may differ.
  • Page 18 2 Product Description User Manual figure 2-2 Inverter Appearance Description Name To clearly identify the product, including device model, S/N, Nameplate important specifications, marks of certification institutions, etc. To indicate the current working state of the inverter. LED indicator Complement to the included wall-mounting bracket for hang- Hanger ing the inverter.

  • Page 19: Symbols On The Product

    User Manual 2 Product Description figure 2-3 Dimensions of the Inverter(in mm) Symbols on the Product Symbol Explanation Regulatory compliance mark. TÜV mark of conformity. CE mark of conformity. EU/EEA Importer. UKCA mark of conformity. Do not dispose of the inverter together with household waste. The inverter does not have a transformer.

  • Page 20: Led Indicator

    2 Product Description User Manual Symbol Explanation Danger to life due to high voltages! Do not touch live parts for 10 minutes after disconnection from the power sources. Only qualified personnel can open and maintain the inverter. Additional grounding point. * The table shown here is for reference only.

  • Page 21: Function Description

    User Manual 2 Product Description figure 2-4 Circuit Diagram (SG5.0RT for example) • DC switches can safely disconnect the PV input when necessary to ensure the safe op- eration of the inverter and the safety of personnel. • The DC SPD provides a discharge circuit for the DC side over-voltage power to prevent it from damaging the internal circuits of the inverter.
  • Page 22 After communication connection is established, users can view inverter information, op- erational 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 un- expected damage.
  • Page 23 User Manual 2 Product Description • For negative voltage scheme, after the PID function is enabled, the voltage to ground of all PV strings is lower than 0, and therefore the PV string-to-ground voltage is a negative value. • Before enabling the PID recovery function, make sure the voltage polarity of the PV modules to ground meets requirement.
  • Page 24 2 Product Description User Manual meet the requirements of CEI0-21 to protect the grid from abnormality after the inverter is operational. 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 25 User Manual 2 Product Description Plant ≤ 11.08 kVA > 11.08 kVA Size 253 V / < 603 253 V / < 603 253 V / < 603 253 V / < 603 253 V / <603 59.S1 264.5 V / 0.2 264.5 V / 0.2 264.5 V / 0.2 264.5 V / 0.2...

  • Page 26: 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 27 User Manual 3 Unpacking and Storage • Do not store the inverter in places susceptible to direct sunlight, rain, and strong electric field. • Do not place the inverter in places with items that may affect or damage the inverter. •...

  • Page 28: Mechanical Mounting

    Mechanical Mounting Respect all local standards and requirements during mechanical installation. Safety during Mounting Make sure there is no electrical connection before installation. Before drilling, avoid the water and electricity wiring in the wall. Poor installation environment will affect system performance! •...

  • Page 29: Environment Requirements

    User Manual 4 Mechanical Mounting 4.2.1 Environment Requirements • The installation environment must be free of inflammable or explosive materials. • The location should be not accessible to children. • The ambient temperature and relative humidity must meet the following requirements. •...

  • Page 30: Clearance Requirements

    4 Mechanical Mounting User Manual 4.2.4 Clearance Requirements Reserve enough clearance around the inverter to ensure sufficient space for heat dissipation. In case of multiple inverters, reserve specific clearance between the inverters.

  • Page 31: Installation Tools

    User Manual 4 Mechanical Mounting Install the inverter at an appropriate height for ease of viewing LED indicator and operating switch(es). Installation Tools Installation tools include but are not limited to the following recommended ones. If necessary, use other auxiliary tools on site. table 4-1 Tool specification Goggles Earplugs...

  • Page 32: Moving The Inverter

    4 Mechanical Mounting User Manual Heat gun MC4 terminal crimp- Tube terminal crimp- Multimeter (≥ 1100 ing tool (4 mm –6 ing tool (0.5 mm – Vdc) 1.0 mm Slotted screwdriver MC4 terminal (M2) wrench Moving the Inverter Before installation, remove the inverter from the packing case and move it to the installation site.

  • Page 33: Installing The Inverter

    User Manual 4 Mechanical Mounting Installing the Inverter Inverter is installed on the wall by means of wall-mounting bracket and the expansion plug sets. The expansion plug set shown below is recommended for the installation. (1) Self-tapping (2) Expansion tube (3) Fender washer (4) Spring washer screw M6...
  • Page 34 4 Mechanical Mounting User Manual step 3 Lift the inverter and slide it down along the wall-mounting bracket to make sure they match perfectly. Use the fastener set to lock the device. - - End...

  • Page 35: 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 36: Terminal Description

    5 Electrical Connection User Manual • All vacant terminals must be covered with waterproof covers to prevent affect- ing the protection rating. • When the wiring is completed, seal the gap of cable inlet and outlet holes with fireproof / waterproof materials such as fireproof mud to prevent foreign matter or moisture from entering and affecting the long-term normal operation of the inverter.
  • Page 37 User Manual 5 Electrical Connection table 5-1 Terminal Description Decisive Volt- Description Name Classification MC4 terminals for PV input. PV1+, PV1–, PV2+, PV2–, PV3+, PV3–, DVC-C The terminal number depends on in- PV4+, PV4– verter model. Communication accessory port to be connected to WiNet-S for countries COM1 DVC-A...

  • Page 38: Electrical Connection Overview

    8 * 0.2 mm cable Meter Shielded twisted 2 * (0.5–1.0) mm 5.3 mm–7 mm RS485 cable pair SG3.0RT to SG3.0RT to SG12RT: SG12RT: 10 mm– 4 mm –6 mm Outdoor 5-core 21 mm AC cable copper wire cable SG15RT to SG15RT to SG20RT: SG20RT: 14 mm–...

  • Page 39: 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 40: Connection Procedure

    5 Electrical Connection User Manual 5.4.2 Connection Procedure External grounding cable and OT/DT terminal are prepared by customers. step 1 Prepare the cable and OT/DT terminal. (1) Heat shrink tubing (2) OT/DT terminal step 2 Remove the screw on the grounding terminal and fasten the cable with a screwdriver. step 3 Apply paint to the grounding terminal to ensure corrosion resistance.

  • Page 41: Ac Cable Connection

    An independent three or four-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 SG3.0RT/SG4.0RT/SG5.0RT/ 16 A SG6.0RT SG7.0RT/SG8.0RT 20 A...

  • Page 42: Assembling The Ac Connector (< 15 Kw)

    Multiple Inverters in parallel Connection If multiple inverters are connected in parallel to the grid, ensure that the total number of par- allel inverters does not exceed 5. Otherwise, please contact SUNGROW for technical scheme. 5.5.2 Assembling the AC Connector (< 15 kW) The AC terminal block is on the bottom side of the inverter.
  • Page 43 User Manual 5 Electrical Connection step 4 Remove 45 mm of the cable jacket and 12 mm–16 mm of the wire insulation. step 5 Open the clamp on the spring-loaded terminal and insert the wires into the corresponding holes. Close the clamp and push the terminal into the housing until there is an audible click. Observe the terminal assignment.

  • Page 44: Installing The Ac Connector (< 15 Kw)

    5 Electrical Connection User Manual - - End 5.5.3 Installing the AC Connector (< 15 kW) 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.

  • Page 45: Assembling The Ac Connector (≥ 15 Kw)

    User Manual 5 Electrical Connection step 4 Connect the PE wire to ground and the phase lines and the “N” line to AC circuit breaker. Then Connect the AC circuit breaker to electric board. step 5 Make sure all wires are firmly installed via the right torque tool or dragging the cables slightly. - - End 5.5.4 Assembling the AC Connector (≥...
  • Page 46 5 Electrical Connection User Manual step 4 Thread the AC cable of appropriate length through the swivel nut and the housing. step 5 Remove 80 mm–90 mm of the cable jacket and 12 mm of the wire insulation. step 6 (Optional) When using a multi-core multi-strand copper wire cable, connect the AC wire head to the cord end terminal (hand-tight).

  • Page 47: Installing The Ac Connector (≥ 15 Kw)

    User Manual 5 Electrical Connection Observe the terminal assignment. Do not connect any phase line to the "PE" termi- nal or PE wire to "N" terminal. Otherwise, unrecoverable damage to the inverter may follow. step 8 Ensure that the wires are securely in place by slightly pulling them. Tighten the swivel nut to the housing.
  • Page 48 5 Electrical Connection User Manual step 3 Insert the AC connector into the AC terminal on the bottom of the inverter until there is an audible sound. step 4 (Optional) Secure the AC connector, as shown in the figure below.

  • Page 49: Dc Cable Connection

    User Manual 5 Electrical Connection step 5 Connect the PE wire to ground and the phase lines and the "N" line to AC circuit breaker. Then connect the AC circuit breaker to electric board. step 6 Make sure all wires are firmly installed via the right torque tool or dragging the cables slightly. - - End DC Cable Connection The PV string will generate lethal high voltage when exposed to sunlight.

  • Page 50: Pv Input Configuration

    The damage caused by this is not covered by the warranty. • Electric arc or contactor over-temperature may occur if the PV connectors are not firmly in place, and SUNGROW shall not be held liable for any damage caused. •...

  • Page 51: Assembling The Pv Connectors

    User Manual 5 Electrical Connection figure 5-3 PV Input Configuration (SG20RT for example) Prior to connecting the inverter to PV inputs, the specifications in the following table should be met: Open-circuit Voltage Limit Max. current for input connector Inverter Model All models 1100 V 30 A...
  • Page 52 Use MC4-Evo2 DC terminals if the maximum input voltage is greater than 1,000 V. To purchase the MC4-Evo2 DC terminals, contact SUNGROW. • Select appropriate DC terminals as required above. Otherwise, SUNGROW shall be held no liability for the damage caused. To ensure IP65 protection, use only the supplied connector.

  • Page 53: Installing The Pv Connectors

    User Manual 5 Electrical Connection step 5 Check for polarity correctness. - - End 5.6.3 Installing the PV Connectors step 1 Rotate the DC switch to "OFF" position. step 2 Check the cable connection of the PV string for polarity correctness and ensure that the open circuit voltage in any case does not exceed the inverter input limit of 1,100 V.

  • Page 54: Winet-S Connection

    5 Electrical Connection User Manual step 4 Seal the unused PV terminals with the terminal caps. - - End WiNet-S Connection The WiNet-S module supports Ethernet communication and WLAN communication. It is not recommended to use both communication methods at the same time. The WiNet-S communication for Ethernet cannot be used simultaneously with A1 and B1 terminals for RS485 daisy chain.
  • Page 55 User Manual 5 Electrical Connection 1: RJ45 plug 2: Protective cap Skip this step if a standard network cable with RJ45 plug is prepared. step 2 Unscrew the swivel nut from the communication module and take out the inner sealing ring. step 3 Unscrew the housing from the communication module.

  • Page 56: Wlan Communication

    5 Electrical Connection User Manual step 5 Insert the RJ45 plug into the front plug connector until there is an audible click and tighten the housing. Install the gasket and fasten the swivel nut. step 6 Remove the waterproof lid from the COM1 terminal and install WiNet-S. step 7 Slightly shake it by hand to determine whether it is installed firmly.

  • Page 57: Wifi Connection (For Brazil)

    User Manual 5 Electrical Connection step 3 Refer to the guide delivered with the module for the set-up. - - End WiFi Connection (for Brazil) step 1 Remove the waterproof lid from the COM1 terminal. step 2 Install the module. Slightly shake it by hand to determine whether it is installed firmly, as shown below.

  • Page 58: Meter Connection

    5 Electrical Connection User Manual Meter Connection In a single inverter scenario, the Meter (A2, B2) terminals are designed to connect to the Smart Energy Meter for the feed-in power function. The export control functionality has not been tested to AS/NZS 4777.2:2020. 5.9.1 Assembling the COM Connector step 1 Unscrew the swivel nut from the connector.
  • Page 59 User Manual 5 Electrical Connection step 5 (Optional) When using a multi-core multi-strand wire cable, connect the wire head to the cord end terminal. In case of single-strand copper wire, skip this step. step 6 Plug the wires or terminals into the corresponding terminals as shown in the following figure. figure 5-5 A2, B2 connection step 7 Ensure that the wires are securely in place by slightly pulling them and insert the terminal plug into the housing until there is an audible click.

  • Page 60: Installing The Com Connector

    5 Electrical Connection User Manual step 8 Fasten the swivel nut. - - End 5.9.2 Installing the COM Connector step 1 Remove the waterproof lid from the COM2 connector. step 2 Insert the COM connector into COM2 terminal on the bottom of the inverter until there is an audible click.

  • Page 61: Rs485 Connection

    User Manual 5 Electrical Connection - - End 5.10 RS485 Connection 5.10.1 RS485 Communication System The RS485 (A1, B1) connection can establish the communication between the inverter and an external device, as well as the communication between two inverters in parallel. In case of multiple inverters, all the inverters can be connected via RS485 cables in daisy chain manner.

  • Page 62: Assembling The Com Connector

    5 Electrical Connection User Manual figure 5-6 Multi-inverter Connection • The maximum number of inverters allowed to be connected in the same point of connection is 5. • The RS485 communication cable should be shielded twisted pair cables or shielded twisted pair Ethernet cables. •...
  • Page 63 User Manual 5 Electrical Connection step 4 Remove the cable jacket and strip the wire insulation. step 5 (Optional) When using a multi-core multi-strand wire cable, connect the wire head to the cord end terminal. In case of single-strand copper wire, skip this step. step 6 Plug the wires or terminals into the corresponding terminals as shown in the following figure.
  • Page 64 5 Electrical Connection User Manual figure 5-7 A1, B1 connection step 7 Ensure that the wires are securely in place by slightly pulling them and insert the terminal plug into the housing until there is an audible click. step 8 For RS485 daisy chain: Crimp two wires A to a two-wire core end terminal and two wires B to another terminal.

  • Page 65: Installing The Com Connector

    User Manual 5 Electrical Connection - - End 5.10.3 Installing the COM Connector step 1 Remove the waterproof lid from the COM2 connector. step 2 Insert the COM connector into COM2 terminal on the bottom of the inverter until there is an audible click.

  • Page 66: Do Connection

    5 Electrical Connection User Manual 5.11 DO Connection The inverter is equipped with a DO relay for an earth fault alarm. The additional equipment required is a light indicator and/or a buzzer that needs additional power supply. Once fault occurs, the relay trips and the circuit is connected. The external indicator gets on. The relay remains triggered until the fault is removed.

  • Page 67: Di Connection

    User Manual 5 Electrical Connection table 5-4 Method of Asserting DRM Mode Asserted by Shorting Terminals on Switch Operation on External Inverter DRED DRM0 R & C Close S1 and S5 Refer to section "5.9.1 Assembling the COM Connector" for detailed assembling procedure. Plug the wires to R and C terminals according the labels on the bottom of the inverter.
  • Page 68 5 Electrical Connection User Manual table 5-5 Method of Asserting DI Mode Output power (in % of the Rated AC Switch Operation on output power) External RCR 100 % (configurable according to None need) Close S1 100 % Close S2 60 % Close S3 30 %...
  • Page 69 User Manual 5 Electrical Connection step 4 Remove the cable jacket by 7 mm–10 mm. step 5 Plug the wires into the corresponding terminals as shown in the following figure. figure 5-10 DI connection step 6 Ensure that the wires are securely in place by slightly pulling them and insert the terminal plug into the housing until there is an audible click.

  • Page 70: Ns Protection Connection

    5 Electrical Connection User Manual step 7 Fasten the swivel nut. step 8 Refer to section "5.10.3 Installing the COM Connector" to install the connector. - - End 5.14 NS Protection Connection NS terminal: NS Protection is used for the German market currently. For plants sized more than 30kVA, inverter NS Protection terminals could be used in daisy chain to external NS Protection Relay to realize emergency stop when the NS Protection Relay changes its dry contact status due to the grid abnormal running status.

  • Page 71: 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 72: 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 73 User Manual 6 Commissioning 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 74 6 Commissioning User Manual Parameter Description Name Time zone The time zone where the plant is located, which can be filled through automatic positioning and manual input. The location of the plant, which can be filled in two ways: • Manually: Manually enter the plant location in the input box.
  • Page 75 User Manual 6 Commissioning step 6 After a device is bound, tap Device and Commissioning to go to corresponding interface. 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.
  • Page 76 6 Commissioning User Manual step 8 Enter the Activate EasyConnect interface, and press the multi-function button on the WiNet-S to enable the Easyconnect mode according to the prompt on the screen. The App automatically enters a waiting processing interface if this mode is enabled, and automatically returns to the commissioning interface after the processing is completed.
  • Page 77 User Manual 6 Commissioning 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 78 6 Commissioning User Manual 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 Australia B AS/NZS 4777.2:2020 Australia C • STNW1170: single-phase < 10 kVA & ENERGEX &...
  • Page 79 User Manual 6 Commissioning • 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. step 10 After a plant is successfully created, return to the App home page to view the plant information.

  • Page 80: Isolarcloud App

    App. * To achieve direct login via WLAN, the wireless communication module developed and manufactured by SUNGROW is required. The iSolarCloud App can also establish communi- cation connection to the inverter via Ethernet connection.

  • Page 81: 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 82: Login

    7 iSolarCloud App User Manual step 4 Fill in the registration information, including email, verification code, password and affirm- ance and country (region). The distributor/installer has the permission to fill in the company name and the code of upper level installer/distributor. The code of upper level distributor/installer can be obtained from the upper level distributor/installer.
  • Page 83 User Manual 7 iSolarCloud App figure 7-1 Enabling the WLAN Hotspot step 2 Connect the mobile phone to the WLAN network named as "SG-xxxxxxxxxxx" (xxxxxxxxxxx is the serial number indicated on the side of the communication module). step 3 Open the App to enter the login screen. Tap Local Access to enter the next screen. step 4 Tap Confirm, then enter the password and tap LOGIN.Or tap MANUAL CONNECTION at the bottom of the interface and select WiNet-S, then enter the password and tap LOGIN.

  • Page 84: Initial Settings

    7 iSolarCloud App User Manual 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 85: Function Overview

    User Manual 7 iSolarCloud App The actual initializing procedure may differ due to different countries. Please fol- low the actual App guidance. For some countries, you should initialize parameters according to local grid re- quirements. For details, please refer to the relevant technical documents on http:// support.sungrowpower.com/.

  • Page 86: Home

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

  • Page 87: Run Information

    User Manual 7 iSolarCloud App Description Name Real-time Shows the present output power of the inverter. power Nominal power Shows the installed power of the inverter. Today yield Shows today power generation of the inverter Total yield Shows accumulative power generation of the inverter Includes menus of "Home", "Run Infomation", "Records"...
  • Page 88 7 iSolarCloud App User Manual 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 89 User Manual 7 iSolarCloud App 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 90: More

    7 iSolarCloud App User Manual 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 91: System Parameters

    User Manual 7 iSolarCloud App 7.10.1 System Parameters Tap Settings→System Parameters to enter the corresponding screen, as shown in the fol- lowing 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 92 7 iSolarCloud App User Manual 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 functions between 22:00 pm and 5:00 am by default. If ISO impedance abnormality or PID function exception is de- tected during running of the PID function, the inverter reports a Clear PID alarm PID false alarm and reminds the user to take corresponding meas-...

  • Page 93: Power Regulation Parameters

    User Manual 7 iSolarCloud App figure 7-16 AFCI Setting 7.10.3 Power Regulation Parameters Active Power Regulation Tap Settings→Power Regulation Parameters→Active Power Regulation to enter the screen, as shown in the following figure. figure 7-17 Active Power Regulation table 7-5 Description of Active Power Regulation Parameters Description Range Parameter...
  • Page 94 7 iSolarCloud App User Manual Description Range Parameter Active Power Setting Switch for activating/deactivating the function On/Off Persistence of active power setting persistence Active Power Limit Switch for limiting active power On/Off Active Power Limit The ratio of active power limit to rated power in 0.0 %–...
  • Page 95 User Manual 7 iSolarCloud App Description Range Parameter Rated Power of Original Power Gen- eration Sys- tems - Feed-in Limitation Set Feed-in Limitation in numerical value (Rated Value (unit: kW) Power of Original Power Gen- eration Sys- tems + Installed PV Power) [Rated Power of...
  • Page 96 7 iSolarCloud App User Manual figure 7-19 Reactive Power Regulation table 7-7 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 97 User Manual 7 iSolarCloud App table 7-8 "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 %–100.0 % (in %) QP_P2 Output power at point P2 on the Q(P) mode curve...
  • Page 98 7 iSolarCloud App User Manual The reactive power output of the inverter varies in response to the grid voltage. table 7-9 "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 0.0 %–5.0 %...

  • Page 99: Communication Parameters

    User Manual 7 iSolarCloud App figure 7-21 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 7-22 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 100: Auto-Test

    7 iSolarCloud App User Manual 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 101 User Manual 7 iSolarCloud App figure 7-24 Auto-test Result Clear Auto-test Fault Tap Clear Auto-test Fault→CONFIRM to clear the auto-test fault.

  • Page 102: Spi(For Italy Cei0-21 Grid Code Only)

    SUNGROW. Unauthorized personnel are not allowed to log in with this account. Otherwise, SUNGROW shall not be held liable for any damages caused. Tap More→Settings→Protection Parameters→Other Parameters to enter the corre- sponding screen, on which you can modify the value of "External Signal for Italian Grid"...

  • Page 103: System Decommissioning

    System Decommissioning Disconnecting 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 104: Disposal Of The Inverter

    8 System Decommissioning User Manual step 2 Refer to"4 Mechanical Mounting", to dismantle the inverter in reverse steps. step 3 If necessary, remove the wall-mounting bracket from the wall. step 4 If the inverter will be used again in the future, please refer to "3.2 Inverter Storage"...

  • Page 105: 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 106 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 107 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 108 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 109 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 110 2. Reconnect the communication cable of the cation Abnormal meter. Alarm 3. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the alarm persists. 1. Check whether the output port is connected to actual grid. Disconnect it from the grid if so.
  • Page 111 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 112 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 113: 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 114: Routine Maintenance

    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 115: Fan Maintenance

    User Manual 9 Troubleshooting and Maintenance 9.2.3 Fan Maintenance If the inverter has an external fan, when the fan fails to work normally, the inverter cannot be effectively cooled, which will affect the efficiency of the inverter or cause derated operation. Therefore, keep the fan clean and replace the damaged fan in time.
  • Page 116 9 Troubleshooting and Maintenance User Manual step 6 Unscrew the screws on the dust covers and remove the dust covers. step 7 Use a soft brush or vacuum cleaner to clean the fan. If you need to replace the fan, use a screwdriver to unscrew the screw at the fan bracket and remove the fan.

  • Page 117: Appendix

    10 Appendix 10.1 Technical Data Parameter SG3.0RT SG4.0RT Input (DC) Recommended max. PV in- 4.5 kWp 6.0 kWp put power Max. PV input voltage 1100 V Min. PV input voltage / 180V / 180V Start-up input voltage Nominal input voltage...
  • Page 118 10 Appendix User Manual Parameter SG3.0RT SG4.0RT Efficiency Max. efficiency 98.20 % European efficiency 96.50 % 97.00 % Protection & Function Grid monitoring DC reverse connection protection AC short-circuit protection Leakage current protection DC switch PID recovery function Surge Protection...
  • Page 119 User Manual 10 Appendix Parameter SG5.0RT SG6.0RT Input (DC) Recommended max. PV in- 7.5 kWp 9.0 kWp put power Max. PV input voltage 1100 V Min. PV input voltage / 180 V / 180 V Start-up input voltage Nominal input voltage 600 V MPP voltage range 160 V–1000 V...
  • Page 120 10 Appendix User Manual Parameter SG5.0RT SG6.0RT European efficiency 97.40 % Protection & Function Grid monitoring DC reverse connection protection AC short-circuit protection Leakage current protection DC switch PID recovery function Surge Protection DC Type II / AC Type II optional Arc fault circuit interrupter (AFCI)
  • Page 121 User Manual 10 Appendix Parameter SG7.0RT SG8.0RT Max. PV input voltage 1100 V Min. PV input voltage / 180 V / 180 V Start-up input voltage Nominal input voltage 600 V MPP voltage range 160 V–1000 V No. of independent MPP inputs No.
  • Page 122 10 Appendix User Manual Parameter SG7.0RT SG8.0RT Grid monitoring DC reverse connection protection AC short-circuit protection Leakage current protection DC switch PID recovery function Surge protection DC Type II, AC Type II Arc fault circuit interrupter optional (AFCI) General Data Dimensions (W x H x D) 370 mm x 480 mm x 195 mm Mounting method...
  • Page 123 User Manual 10 Appendix Parameter SG10RT SG12RT Min. PV input voltage / 180 V / 180 V Start-up input voltage Nominal input voltage 600 V MPP voltage range 160 V–1000 V No. of independent MPP inputs No. of PV strings per MPPT 2 / 1 Max.
  • Page 124 10 Appendix User Manual Parameter SG10RT SG12RT DC reverse connection protection AC short circuit protection Leakage current protection DC switch PID recovery function Surge protection DC Type II / AC Type II Arc fault circuit interrupter optional (AFCI) General Data Dimensions (W x H x D) 370 mm x 480 mm x 195 mm Mounting method...
  • Page 125 User Manual 10 Appendix Parameter SG15RT SG17RT SG20RT Min. PV input voltage / 180 V / 180 V Start-up input voltage Nominal input voltage 600 V MPP voltage range 160 V–1000 V No. of independent MPP inputs No. number of PV strings 2 / 2 per MPPT Max.
  • Page 126 10 Appendix User Manual Parameter SG15RT SG17RT SG20RT Efficiency Max. efficiency 98.50 % European efficiency 98.10 % Protection & Function Grid monitoring DC reverse connection protection AC short-circuit protection Leakage current protection DC switch PID recovery function Surge protection DC Type II / AC Type II Arc fault circuit interrupter optional (AFCI)

  • Page 127: 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.

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