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Sungrow SG3.0RT User Manual

3-phase pv grid-connected 3-phase pv grid-connected inverter
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3-Phase PV Grid-Connected Inverter
User Manual
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-Ver16-202110
SG3.0-20RT-UEN-Ver16-202110

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Summary of Contents for Sungrow SG3.0RT

  • Page 1 3-Phase PV Grid-Connected Inverter User Manual 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. The reader can get additional information about other devices at www.sungrowpower.com or on the webpage of the respective component manufacturer. Validity This manual is valid for the following inverter models: • SG3.0RT • SG4.0RT • SG5.0RT •...
  • Page 5 Symbols Important instructions contained in this manual should be followed during installation, opera- tion and maintenance of the inverter. They will be highlighted by the following symbols. Indicates a hazard with a high level of risk that, if not avoided, will result in death or serious injury.

  • Page 7: Table Of Contents

    Contents All Rights Reserved .....................I About This Manual......................II 1 Safety .........................1 1.1 PV Panels......................1 1.2 Utility Grid ......................1 1.3 Inverter ......................2 2 Product Description ..................4 2.1 System Introduction ..................4 2.2 Product Introduction..................5 2.3 Symbols on the Product ..................7 2.4 LED Indicator ....................8 2.5 Circuit Diagram ....................8 2.6 Function Description ..................9 3 Unpacking and Storage...
  • Page 8 5.4.1 External Grounding Requirements............25 5.4.2 Connection Procedure.................25 5.5 AC Cable Connection ...................26 5.5.1 AC Side Requirements ................26 5.5.2 Assembling the AC Connector (< 15 kW) ..........27 5.5.3 Installing the AC Connector (< 15 kW) ..........29 5.5.4 Assembling the AC Connector (≥ 15 kW) ..........30 5.5.5 Installing the AC Connector (≥...
  • Page 9 7.2 Installing the App ..................67 7.3 Account Registration..................68 7.4 Login ......................69 7.4.1 Requirements ..................69 7.4.2 Login Procedure .................69 7.5 Initial Settings....................71 7.6 Function Overview..................72 7.7 Home ......................73 7.8 Run Information....................74 7.9 Records .......................75 7.10 More ......................78 7.10.1 System Parameters................79 7.10.2 Operation Parameters ...............79 7.10.3 Power Regulation Parameters............81 7.10.4 Communication Parameters...............85 7.10.5 Firmware Update ................86...

  • Page 11: Safety

    The safety instructions in this manual cannot cover all the precautions that should be followed. Perform operations considering actual onsite conditions. • SUNGROW shall not be held liable for any damage caused by violation of the safety instructions in this manual. •...

  • Page 12: Inverter

    1 Safety User Manual All electrical connections must be in accordance with local and national standards. Only with the permission of the local utility grid company, the inverter can be con- nected to the utility grid. Inverter Danger to life from electric shocks due to live voltage Do not open the enclosure at any time.
  • Page 13 User Manual 1 Safety Only qualified personnel can perform the country setting. Unauthorized alteration may cause a breach of the type-certificate marking. Risk of inverter damage due to electrostatic discharge (ESD)! By touching the electronic components, you may damage the inverter. For inverter handling, be sure to: •...

  • Page 14: Product Description

    The intended usage of the inverter is illustrated in the following figure. figure 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 SG3.0RT, SG4.0RT, SG5.0RT, SG6.0RT, SG7.0RT, SG8.0RT, Inverter SG10RT, SG12RT, SG15RT, SG17RT, SG20RT...

  • Page 15: Product Introduction

    User Manual 2 Product Description Description Item Note Metering device Meter cupboard with power distribution system Utility grid TT, TN-C，TN-S，TN-C-S The following figure shows the common grid configurations. Product Introduction Model Description The model description is as follows (take SG10RT as an example): Appearance The following figure shows the dimensions of the inverter.
  • Page 16 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 17: 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 18: 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 19: Function Description

    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 20 2 Product Description User Manual Several protective functions are integrated in the inverter, including short circuit protec- tion, grounding insulation resistance monitoring, residual current protection, grid monitor- ing, DC overvoltage/overcurrent protection, etc. Earth Fault Alarm The inverter is equipped with a DO relay for the local earth fault alarm. The additional equip- ment required is a light indicator and/or a buzzer that needs additional power supply.
  • Page 21 User Manual 2 Product Description • Before enabling the PID recovery function, make sure the voltage polarity of the PV modules to ground meets requirement. If there are any questions, contact the PV module manufacturer or read its corresponding user manual. •...
  • Page 22 2 Product Description User Manual When the inverter detects the AFCI alarm, it stops working. Clear the AFCI alarm so that the inverter can restart the detection. The fault arc detection function meets the standard requirements, please test under the working conditions as required by the standard.

  • Page 23: 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 device is decommissioned.

  • Page 24: 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. In order to avoid electric shock or other injury, make sure that holes will not be drilled over any electricity or plumbing installations. Risk of injury due to improper handling! •...

  • Page 25: 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 26: 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 27: 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 28: 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 29 User Manual 4 Mechanical Mounting step 1 Place the wall-mounting bracket to a proper position on the wall. Observe the level on the bracket and adjust until the bubble is in the middle position. Mark the positions and drill the holes.
  • Page 30 4 Mechanical Mounting User Manual - - End...

  • Page 31: Electrical Connection

    Electrical Connection Safety Instructions Prior to any electrical connections, keep in mind that the inverter has dual power supplies. It is mandatory for the qualified personnel to wear personal protective equipments (PPE) dur- ing the electrical work. Danger to life due to a high voltage inside the inverter! •...
  • Page 32 5 Electrical Connection User Manual figure 5-1 Terminals (SG20RT 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+, PV2–, PV3+, PV3–, DVC-C...

  • Page 33: Electrical Connection Overview

    User Manual 5 Electrical Connection figure 5-2 Label of COM2 Terminal table 5-2 Label Description of COM2 Terminal Description Label RSD-1, Reserved RSD-2 For inverter emergency stop NS-1, NS-2 For external Demand Response Enabling Device ("AU"/ D1/5, D2/6, "NZ") D3/7, D4/8, R, C For Ripple Control For inverter daisy chain...

  • Page 34: External Grounding Connection

    The ground connection of this external grounding terminal cannot replace the connection of the PE terminal of the AC cable. Make sure those terminals are both grounded reliably. Otherwise, SUNGROW shall not be held liable for any damage caused by the violation.

  • Page 35: External Grounding Requirements

    User Manual 5 Electrical Connection 5.4.1 External 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 grounding cable to a nearby grounding point.

  • Page 36: 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 37: 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 38 5 Electrical Connection User Manual step 3 Thread the AC cable of appropriate length through the swivel nut, the sealing ring and the housing. 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.

  • Page 39: 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 6 Ensure that the wires are securely in place by slightly pulling them. Tighten the swivel nut to the housing.

  • Page 40: Assembling The Ac Connector (≥ 15 Kw)

    5 Electrical Connection User Manual step 3 Lift the locking part upwards and insert the AC connector into the AC terminal on the bottom side of the inverter. Then press the locking part and secure it with the screw. 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.
  • Page 41 User Manual 5 Electrical Connection step 3 Take out the screw-type terminal plug from the housing. 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 42: Installing The Ac Connector (≥ 15 Kw)

    5 Electrical Connection User Manual 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 43 User Manual 5 Electrical Connection 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 44: Dc Cable Connection

    5 Electrical Connection User Manual 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 Danger of electric shock!

  • Page 45: Pv Input Configuration

    V and 1,100 V. The inverter returns to running state once the voltage returns to the MPPT operating voltage range, namely, 160 V to 1,000 V. 5.6.1 PV Input Configuration • The inverters SG3.0RT/SG4.0RT/SG5.0RT/SG6.0RT have two PV inputs, SG7.0RT/ SG8.0RT/SG10RT/SG12RT have three PV inputs and SG15RT/SG17RT/SG20RT have four PV inputs. •...

  • Page 46: Assembling The Pv Connectors

    Select appropriate DC terminals as required above. Otherwise, SUNGROW shall be held no liability for the damage caused. SUNGROW provides corresponding PV connectors in the scope of delivery for quick connection of PV inputs. To ensure IP65 protection, use only the supplied connector or the connector with the same ingress of protection.
  • Page 47 User Manual 5 Electrical Connection step 2 Assemble the cable ends with the crimping pliers. 1: Positive crimp contact 2：Negative crimp contact step 3 For some countries such as Australia where the DC protection cover delivered separately need to be installed on site, please firstly lead the PV cables through the waterproof terminal on the DC protection cover before assembling the connector.

  • Page 48: Installing The Pv Connectors

    5 Electrical Connection User Manual 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" 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 49: Winet-S Connection

    • Electric arc or contactor overtemperature may occur if the PV connectors are not firmly in place, and SUNGROW shall not be held liable for any damage caused due to this operation. step 4 Seal the unused PV terminals with the terminal caps.
  • Page 50 5 Electrical Connection User Manual 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 51: Wlan Communication

    User Manual 5 Electrical Connection 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. - - End 5.7.2 WLAN Communication step 1 Remove the waterproof lid from the COM1 terminal. step 2 Install the module.

  • Page 52: Wifi Connection (For Brazil)

    5 Electrical Connection User Manual 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 53: Meter Connection

    User Manual 5 Electrical Connection 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. 5.9.1 Assembling the COM Connector step 1 Unscrew the swivel nut from the connector. step 2 Take out the terminal block.
  • Page 54 5 Electrical Connection User Manual 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 55: Installing The Com Connector

    User Manual 5 Electrical Connection - - 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 56: Rs485 Connection

    5 Electrical Connection User Manual 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 57 User Manual 5 Electrical Connection step 3 Remove the seal and lead the cable through the cable gland. 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.
  • Page 58 5 Electrical Connection User Manual step 6 Plug the wires or terminals into the corresponding terminals as shown in the following figure. 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.

  • Page 59: 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 60: 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 61: 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 62 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 63 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 64: 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 65: 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 66: 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 67 User Manual 6 Commissioning figure 6-2 Creating Power Plant step 4 Select plant type to RESIDENTIAL and inverter type to PV. figure 6-3 Selecting Plant/Inverter Type step 5 Scan the QR code on the communication device or manually enter the serial number of the communication device.
  • Page 68 6 Commissioning User Manual figure 6-5 Selecting Internet Access Mode step 7 The EASYCONNECT INSTRUCTION screen will prompt. Press the multi-function button on the WiNet-S module once to turn on EasyConnect mode. The WLAN indicator on WiNet-S blinks quickly when this mode is turned on. Return to the App and the screen displays suc- cessful connection to the inverter WLAN.

  • Page 69: Initializing The Device

    User Manual 6 Commissioning Initializing the Device The inverter is successfully connected to the router. If there is no latest equipment upgrade package, skip steps 1 and 2. The actual initializing procedure may differ due to different countries. Please follow the ac- tual App guidance.
  • Page 70 Countries not listed above "Other 50Hz" or "Other 60Hz" * Request guideline for manual settings from Sungrow. The parameter Country/Region must be set to the country (region) where the inver- ter is installed at. Otherwise, the inverter may report errors.
  • Page 71 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 72 6 Commissioning User Manual Network Service Provider Grid Type • UE-ST-2008.1: ≤ 10 kVA for single- phase & 30 kVA for three-phase United Energy • UE-ST-2008.2: ＞ 30 kVA three-phase Embedded Generation Notice Photovoltaic PowerWater Systems:2020 • TS129-2019: < 10 kW for single-phase &...

  • Page 73: 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 74 6 Commissioning User Manual figure 6-13 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 75 Tab the inverter to view the live data about voltage, current, power or curve. figure 6-16 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 76 6 Commissioning User Manual 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 77: 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 78: Account Registration

    7 iSolarCloud App User Manual 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 79: Login

    User Manual 7 iSolarCloud App 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 distributor/installer. The code of upper level distributor/installer can be obtained from the upper level distributor/installer.
  • Page 80 7 iSolarCloud App User Manual 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 Select WLAN and select the device (SN), then enter the password and tap LOGIN.

  • Page 81: Initial Settings

    User Manual 7 iSolarCloud App The "Country/Region" must be set to the country where the inverter is installed at. Otherwise, the inverter may report errors. 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.

  • Page 82: Function Overview

    7 iSolarCloud App User Manual 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, see "6.5 Initializing the Device".

  • Page 83: Home

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

  • Page 84: Run Information

    7 iSolarCloud App User Manual 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 85: Records

    User Manual 7 iSolarCloud App 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 86 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 87 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 88: 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 89: 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 90 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 91: 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 92 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 93 User Manual 7 iSolarCloud App "Qt" Mode In the Qt mode, the reactive power can be regulated by the parameter Q-Var limits (in %). The system rated reactive power is fixed, the system injects reactive power according to the delivered reactive power ratio. The "Reactive Power Ratio" is set through the App. The setting range of the reactive power ratio is from -100 % to 100 %, corresponding to the ranges of inductive and capacitive reactive power regulation respectively.
  • Page 94 7 iSolarCloud App User Manual figure 7-19 Reactive Power Regulation Curve in Q(P) Mode "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...

  • Page 95: Communication Parameters

    User Manual 7 iSolarCloud App Explanation Range Parameter Value of Q/Sn at point P4 on the Q(U) mode curve (in QU_Q4 0.0 % to 60.0 % Active power for Q(U) function activation (in %) 20.0 %–100.0 % EnterPower Active power for Q(U) function deactivation (in %) 1.0 %–20.0 % ExitPower Yes, No, Yes...

  • Page 96: Firmware Update

    7 iSolarCloud App User Manual MPLC Parameters Tap Settings→Communication Parameters→MPLC Parameters to enter the correspond- ing interface, as shown in the following figure. figure 7-22 MPLC Parameters table 7-10 MPLC Parameters Range Parameter Band Num Band1, Band2 Array ID 1–255 Winding ID 1–10 7.10.5 Firmware Update...

  • Page 97: Auto-Test

    User Manual 7 iSolarCloud App step 7 Tap More on the App home screen and then tap Firmware Update. step 8 Tap the upgrade package file, a prompt box will pop up asking you to upgrade the firmware with the file, tap CONFIRM to perform the firmware upgrade. step 9 Wait for the file to be uploaded.
  • Page 98 7 iSolarCloud App User Manual figure 7-24 Auto-test Result Clear Auto-test Fault Tap Clear Auto-test Fault→CONFIRM to clear the auto-test fault. figure 7-25 Clear Auto-test Fault...

  • Page 99: System Decommissioning

    System Decommissioning Disconnecting the Inverter Risk of burns due to hot components! 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 100: 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 101: Troubleshooting And Maintenance

    Troubleshooting and Maintenance Troubleshooting Once the inverter fails, the fault information can be displayed on the App interface. If the in- verter is equipped with an LCD screen, the fault information can be viewed on it. The fault codes and troubleshooting methods of all PV inverters are detailed in the table be- low.
  • Page 102 App or the LCD. Modify the overvoltage protection values with the consent of the local electric power operator. 3. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 103 Grid Underfrequency 2. Check whether the protection parameters are appropriately set via the App or the LCD. 3. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 104 1. Measure the actual grid, and contact the lo- cal electric power company for solutions if the Grid Abnormal grid parameter exceeds the set range. 2. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 105 If so, disconnect the DC switch and adjust the polarity when the string current drops below 0.5 A. 2. Contact Sungrow Customer Service if the 532-547, PV Reverse Connection preceding causes are ruled out and the alarm...
  • Page 106 Resistance layer. 3. If the cable is normal and the fault occurs on rainy days, check it again when the weath- er turns fine. 4. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists.
  • Page 107 2. Check whether the insulation between the Grounding Cable Fault ground cable and the live wire is normal. 3. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists. 1. Disconnect the DC power supply, and...
  • Page 108 2. Reconnect the communication cable of the Inverter Parallel Com- meter. munication Alarm 3. Contact Sungrow Customer Service if the preceding causes are ruled out and the alarm persists. 7, 11, 16, 19–25, 30– 34, 36, 38, 40–42, 44–...
  • Page 109 432–434, abnormalities, and take corresponding correc- 500–513, tive measures when necessary. 515–518, If the fault persists, please contact Sungrow 900, 901, Power Customer Service. 910, 911 1. Check whether the corresponding string is of reverse polarity. If so, disconnect the DC switch and adjust the polarity when the string current drops below 0.5 A.

  • Page 110: Maintenance

    364-395 voltage Fault later to restart the inverter. If the fault still ex- ists, contact Sungrow Customer Service. 1. Check whether the number of PV modules of the corresponding string is less than other strings. If so, disconnect the DC switch and adjust the PV module configuration when the string current drops below 0.5 A.

  • Page 111: Routine Maintenance

    As the inverter contains no component parts that can be maintained, never arbi- trarily replace any internal components. • For any maintenance need, please contact SUNGROW. Otherwise, SUNGROW shall not be held liable for any damage caused. Servicing of the device in accordance with the manual should never be undertak- en in the absence of proper tools, test equipments or the latest revision of the manual which has been clearly and thoroughly understood.

  • Page 112: Fan Maintenance

    9 Troubleshooting and Maintenance User Manual 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 113 User Manual 9 Troubleshooting and Maintenance 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. step 8 Install the dust covers and then the fan bracket to the inverter.

  • Page 114: 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 115 User Manual 10 Appendix 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 116 10 Appendix User Manual 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 117 User Manual 10 Appendix Parameter SG5.0RT SG6.0RT Max. efficiency 98.40 % European efficiency 97.40 % Protection & Function Grid monitoring DC reverse connection protection AC short-circuit protection Leakage current protection DC switch optional PID recovery function Surge Protection DC Type II / AC Type II optional Arc fault circuit interrupter (AFCI)
  • Page 118 10 Appendix User Manual Parameter SG7.0RT SG8.0RT Input (DC) Recommended max. PV in- 10.5 kWp 12 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 119 User Manual 10 Appendix Parameter SG7.0RT SG8.0RT Efficiency Max. efficiency 98.40 % 98.50 % European efficiency 97.70 % 97.80 % Protection & Function Grid monitoring DC reverse connection protection AC short-circuit protection Leakage current protection DC switch optional PID recovery function Surge protection DC Type II, AC Type II optional...
  • Page 120 10 Appendix User Manual Parameter SG10RT SG12RT Input (DC) Recommended max. PV in- 15.0 kWp 18.0 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 121 User Manual 10 Appendix Parameter SG10RT SG12RT European efficiency 97.90 % Protection & Function Grid monitoring DC reverse connection protection AC short circuit protection Leakage current protection DC switch optional PID recovery function Surge protection DC Type II / AC Type II Arc fault circuit interrupter optional (AFCI)
  • Page 122 10 Appendix User Manual Parameter SG15RT SG17RT SG20RT Input (DC) Recommended max. PV in- 22.5 kWp 25.5 kWp 30.0 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...
  • Page 123 User Manual 10 Appendix Parameter SG15RT SG17RT SG20RT Power factor at nominal > 0.99 / 0.8 leading–0.8 lagging power / Adjustable power factor Feed-in phases / connec- 3 / 3 tion phases Efficiency Max. efficiency 98.50 % European efficiency 98.10 % Protection &...

  • Page 124: 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 125 Serial number of the device • Date of the device • Fault code/name • Brief description of the problem China (HQ) Australia Sungrow Power Supply Co., Ltd Sungrow Australia Group Pty. Ltd. Hefei Sydney +61 2 9922 1522 +86 551 65327834 service@sungrowpower.com service@sungrowpower.com.au Brazil...
  • Page 126 10 Appendix User Manual Malaysia Philippines Sungrow SEA Sungrow Power Supply Co., Ltd Selangor Darul Ehsan Mandaluyong City +60 19 897 3360 +63 9173022769 service@my.sungrowpower.com service@ph.sungrowpower.com Thailand Spain Sungrow Thailand Co., Ltd. Sungrow Ibérica S.A.U. Bangkok Mutilva +66 891246053 +34 948 05 22 04 service@th.sungrowpower.com...

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