Sungrow SG125HV User Manual
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Sungrow SG125HV User Manual

Pv grid-connected inverter
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User Manual
SG125HV
SG125HV-20
PV Grid-connected
Inverter
SG125HV-V1-UEN-Ver14-202002
Version: 1.4

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Summary of Contents for Sungrow SG125HV

  • Page 1 User Manual SG125HV SG125HV-20 PV Grid-connected Inverter SG125HV-V1-UEN-Ver14-202002 Version: 1.4...
  • Page 3 All rights reserved including the pictures, markings and symbols used. Any reproduction or disclosure, even partially, of the contents of this manual is strictly prohibited without prior written authorization of SUNGROW. The contents of the manual will be periodically updated or revised due to product development.
  • Page 4 by the following symbols. DANGER indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury. WARNING indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury. CAUTION indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.
  • Page 5 Symbols on the Inverter Body WARNING: ELECTRIC SHOCK HAZARD. THE DC CONDUCTORS OF THIS PHOTOVOLTAIC SYSTEM ARE UNGROUNDED AND MAY BE ENERGIZED. WARNING: Electric Shock Hazard. The DC conductors of this photovoltaic system are normally ungrounded but will become intermittently grounded without indication when the inverter measures the PV array isolation.
  • Page 6 WARNING: ELECTRIC SHOCK HAZARD. THE DC CONDUCTORS OF THIS PHOTOVOLTAIC SYSTEM ARE UNGROUNDED AND MAY BE ENERGIZED. WARNING: Electric Shock Hazard. The DC conductors of this photovoltaic system are normally ungrounded but will become intermittently grounded without indication when the inverter measures the PV array isolation. CAUTION: Risk of Electric Shock,Do Not Remove Cover.

  • Page 7: Table Of Contents

    Contents About This Manual ..............I Safety Instructions ..............1 Product Description ............7 Intended Usage ................. 7 Product Introduction ..............8 2.2.1 Model Description ..............8 2.2.2 Appearance ................9 2.2.3 Dimensions ................10 2.2.4 LED Indicator Panel ..............10 2.2.5 DC Switch ................11 2.2.6 AC Switch ................
  • Page 8 5.4.2 Installing to Concrete Wall ............30 Electrical Connection ............33 Terminal Description ..............33 6.1.1 Appearance ................33 6.1.2 Dimensions of Terminal ............35 AC Side Cable Connection ............36 6.2.1 AC side requirements .............. 36 6.2.2 Grid Connection ..............39 6.2.3 Requirements for OT/DT Terminal (AC) ........
  • Page 9 9.2.1 Routine Maintenance .............. 70 9.2.2 Maintenance Instruction ............71 10 iSolarCloud APP ..............73 10.1 Brief Introduction ..............73 10.2 Download and Install ............... 73 10.3 Menu ..................74 10.4 Login ..................74 10.4.1 Requirements ................ 74 10.4.2 Login Steps ................75 10.5 Home page ................

  • Page 11: Safety Instructions

    The unit is thoroughly tested and strictly inspected before delivery. Damage may still occur during shipping. If there is visible damage to the packing case or the inner contents, or if there is something missing, contact SUNGROW or the forwarding...
  • Page 12 1 Safety Instructions User Manual company. There is a risk of injury due to improperly handling the device!  Always follow the instructions in the manual when moving and positioning the inverter.  Injuries, serious wounds, or bruises may occur if the device is improperly handled.
  • Page 13 Operate the inverter by strictly following the descriptions in this manual to avoid unnecessary personal injury and property damage. Arc flash, fire or explosion may occur if done otherwise and SUNGROW will hold no liability for damages. The following improper operations can cause an arc flash, fire and explosion inside the device.
  • Page 14  Inverter contains no owner serviceable parts inside. Please contact local authorized personnel if any service work is required. Do not replace the inverter internal components without permission. Damage to the inverter may occur and it may void any or all warranty rights from SUNGROW.
  • Page 15 User Manual 1 Safety Instructions There is a risk of inverter damage due to electrostatic discharge! printed circuit boards contain components sensitive electrostatic discharge.  Wear a grounding wrist band when handling the boards.  Avoid unnecessary touching of the boards. Others Certain parameter settings (country selection, etc.) by the iSolarCloud APP must only be done by qualified persons.
  • Page 16 1 Safety Instructions User Manual a) Both AC and DC voltage sources are terminated inside this equipment. Each circuit must be individually disconnected before servicing, and b) When the photovoltaic array is exposed to light, it supplies a DC voltage to this equipment.

  • Page 17: Product Description

    2 Product Description 2.1 Intended Usage SG125HV/SG125HV-20; a transformerless three-phase PV grid-connected inverter, is an integral component in the PV power system. The inverter is designed to convert the direct current power generated from the PV modules into grid-compatible AC current and feeds the AC current to the utility grid.

  • Page 18: Product Introduction

    2 Product Description User Manual TN-S TN-C TN-C-S Transformer Transformer Transformer L1 L2 L3 L1 L2 L3 L1 L2 L3 Inverter Inverter Inverter Transformer Transformer L1 L2 L3 L1 L2 L3 Inverter Inverter If the Anti-PID function is to be enabled ensure that: ...

  • Page 19: Appearance

    User Manual 2 Product Description Tab. 2-1 Version difference Model PID function Night SVG function SG125HV Optional SG125HV-20 2.2.2 Appearance Fig. 2-2 Appearance * Pictures are indicative only. Product in kind prevail. Name Description HMI interface to indicate the present working LED indicator panel state of the inverter.

  • Page 20: Dimensions

    2 Product Description User Manual 2.2.3 Dimensions 296mm 670mm(26.4inch) (11.7inch) Fig. 2-3 Dimensions of the inverter 2.2.4 LED Indicator Panel As an HMI, the LED indicator panel on the inverter front panel indicates the present working state of the inverter. Fig.

  • Page 21: Dc Switch

    User Manual 2 Product Description LED indicator LED color LED state Definition connected, the communication channel has no data interaction No device connected to the inverter through the Bluetooth. The Bluetooth communication is Periodical connected and there is data flash communication RS485 communication...

  • Page 22: Ac Switch

    AC SPD DC Switch DC Bus Inverter Circuit Switch (DC/AC) Fig. 2-5 Circuit diagram of SG125HV/SG125HV-20 2.3.2 Function Description  Inversion function The inverter converts the DC current into grid-compatible AC current and feeds the AC current into the grid.

  • Page 23: Derating

    User Manual 2 Product Description  Data storage The inverter achieves the running information, fault records and etc.  Parameter Configuration The inverter provides various parameter settings. You can set the parameters via the phone’s APP to change the requirements of the device or optimize the performance of the device.
  • Page 24 2 Product Description User Manual Power Limit Setting Inverter output power can be adjusted via the APP interface or remote grid dispatch from the grid company. Over-temperature Derating High ambient temperature, a broken fan or poor ventilation will lead to inverter power derating.
  • Page 25 User Manual 2 Product Description      grid  kVA V 570V grid       grid  570V 600V grid      600V grid   Vgrid [V] Fig. 2-7 Grid under-voltage derating(Pf=1) High input voltage derating If the input voltage is too high, the inverter may derate the power output.

  • Page 26: Pid Function

    2 Product Description User Manual 2.3.4 PID Function SG125HV/SG125HV-20 provides Anti-PID function and PID Recovery function, and achieves raising the potential between the negative electrode of PV array and earth by using internal PID function module. PV Strings Raise the potential between the negative...

  • Page 27: Installation Flow

    3 Installation Flow Fig. 3-1 shows the installation flow of the inverter and Tab. 3-1 gives a detailed explanation. Start Select mounting location Move inverter Unpacking and Inspection Read User Manual Install inverter Electrical connection Check before commissioning Commissioning Troubleshooting Success? Fig.
  • Page 28 3 Installation Flow User Manual Tab. 3-1 Description of installation flow Procedure Description Reference Select optimal installation site Move the inverter to the installation site Unpacking and inspection Read the User Manual, especially the section on “Safety Instruction” Install the inverter to the selected installation site Electrical connection;...

  • Page 29: Unpacking And Storage

    Check the completeness of delivery contents according to the packing list.  Check the inner contents for damage after unpacking. In case any damage is found, please contact SUNGROW or the forwarding company. Do not dispose of the original packing case. It is recommended to store the inverter in it.
  • Page 30 4 Unpacking and Storage User Manual carton separately. It provides information on type of inverter, important specifications, marks of certification institutions, and serial number which are available and identified by SUNGROW. Take SG125HV as an example: 光伏并网逆变器 GRID-CONNECTED PV INVERTER 型号...

  • Page 31: Scope Of Delivery

    4.4 Inverter Storage Proper storage is required if the inverter is not installed immediately. SUNGROW shall hold no liability for the damage of the device, in appearance or the failure of internal components, caused by improper storage of the device...
  • Page 32 4 Unpacking and Storage User Manual with the desiccant bags inside.  The inverter must be packed into its original carton with the desiccant bags inside.  Seal the packing carton with adhesive tape.  Store the inverter in a dry and clean place to protect it against dust and moisture.

  • Page 33: Mechanical Installation

    5 Mechanical Installation 5.1 Installation Site Selection Select an optimal installation site for safe operation, long service life and outstanding performance.  Take the load capacity of the wall into account. The wall (concrete wall or metal frame) should be strong enough for the weight of the inverter over a long period.
  • Page 34 5 Mechanical Installation User Manual  Place the inverter at eye level for easy viewing and operation. Ground  Install the inverter vertically or at a maximum back tilt of 75 degrees. Do not install the inverter leaning forward or upside down. Leaning backward Up side down Leaning forward...
  • Page 35 User Manual 5 Mechanical Installation In case the installation site is a level surface, mount the inverter to the horizontal-mounting bracket to meet the mounting angle requirements, as shown in the figure below. Distance away from ground surface ≥ 450mm Distance away from floating surface ≥...
  • Page 36 5 Mechanical Installation User Manual  Ensure there is enough space for convection (The fans are maintained on the left side of the inverter, and a larger clearance is required.) Cool air Hot air ≥600mm ≥400mm (23.6inch) (15.7inch) Ground  When installing multiple inverters, it is recommended to install multiple devices side by side.

  • Page 37: Moving Inverter To Installation Site

    User Manual 5 Mechanical Installation ≥100mm(3.9inch)  Do not install the inverter in a confined space. The inverter will not work normally if otherwise.  Install the inverter where children cannot reach.  Do not install the inverter near residential areas.

  • Page 38: Installing The Inverter

    5 Mechanical Installation User Manual  Screwdriver  Wire stripper  Terminal crimping device  Alcohol blast burner (or hot air blower)  Allen wrench  Meg-ohmmeter or multimeter  Other auxiliary tools or spare parts 5.4 Installing the Inverter Inverter is installed to the wall by the bracket enclosed in the packing.

  • Page 39: Installing To Metal Frame

    User Manual 5 Mechanical Installation To install the inverter to concrete walls, the user needs to purchase expansion bolts with proper size (recommended: M10*65) to attach the bracket to concrete walls. 5.4.1 Installing to Metal Frame Remove the bracket and fasteners from the packing case. Step 1 Place the bracket to the chosen metal frame and adjust it to proper Step 2...

  • Page 40: Installing To Concrete Wall

    5 Mechanical Installation User Manual Mount the inverter 5.4.2 Installing to Concrete Wall Remove the bracket and corresponding fasteners from the packing case. Step 1 Place the bracket on the chosen concrete wall and adjust it to proper Step 2 position and height.
  • Page 41 User Manual 5 Mechanical Installation  If the installation location is lower, the inverter can be directly linked to the bracket, please follow step 6 and then jump to Step  If the installation location is higher, the inverter can not be directly linked to the bracket, please perform steps 7 to 10.
  • Page 42 5 Mechanical Installation User Manual Please keep the inverter balanced during the whole process of inverter lifting. Inverter may hit the wall or other obstacles if you’re not careful. Fit the inverter to the bracket, refer to step 6. Step 9 After you fit the inverter to the bracket, fasten the inverter to the Step 10 bracket with two M4×16 screws.

  • Page 43: Electrical Connection

    6 Electrical Connection Once the inverter is secured to the installation site, it can be connected to the PV system. All electrical connections must comply with local regulations and related electrical rules. Improper cable connection may lead to a fatal injury or permanent damage to the device.
  • Page 44 6 Electrical Connection User Manual Bottom view Fig. 6-1 Cable connection area *Pictures are indicative only. Please in kind prevail. Name Description Protective components safely DC switch disconnect DC side current. Communication cable connection Configuration circuit board configuration DC crimping terminal DC input cable access AC crimping terminal AC output cable access...

  • Page 45: Dimensions Of Terminal

    User Manual 6 Electrical Connection Name Description DC input plug-in terminal connecting Tracker Reseved control cabinet Connect the cable through the corresponding interfaces on the bottom of the inverter during power cable and communication cable connection; Tie the communication cables (e.g. RS485 and the dry contact) to prevent interference with the power cables.

  • Page 46: Ac Side Cable Connection

    6 Electrical Connection User Manual 43±0.5 41±0.5 We provide the socket head cap screw whose matching flat washer can enhance the fastening function of the nuts. The maximum permitted temperature for the DC and AC crimping terminal is 90℃(+194°F). 6.2 AC Side Cable Connection 6.2.1 AC side requirements Connection to the utility grid must be done only after receiving approval from the local utility company.
  • Page 47 HV side is connected to the MV grid, please respect following requirement: When more than 25 inverters are connected to a single winding of the transformer, please contact SUNGROW to confirm the technical solution. LV side HV side...
  • Page 48 When the utility side phase monitoring devices are absence, and the system fully relies on inverter protection to shut down during the loss of phase fault at the utility side, SUNGROW recommends a transformer with a DELTA connection on the utility side.

  • Page 49: Grid Connection

    User Manual 6 Electrical Connection 2)The transformer's secondary windings shall be able to handle Vrms=842V phase to ground voltage, which must also be considered when selecting the cables and devices connected with the LV side of the transformer, including the SPDs, any meters, etc.
  • Page 50 6 Electrical Connection User Manual 0.45 0.43 0.15 AC voltage without loads (V)  Considering the voltage drop and other conditions, please enlarge the cable dimension. Power loss of the cable should be less than 1% of the nominal power. ...

  • Page 51: Requirements For Ot/Dt Terminal (Ac)

    User Manual 6 Electrical Connection Conversion terminal Aluminum cable Directly connecting the aluminum cable to the copper bar will cause abnormal operation or even device damage. 6.2.3 Requirements for OT/DT Terminal (AC) OT/DT terminals (not included in the delivery scope) are required for fixing AC cables to the terminal block.
  • Page 52 6 Electrical Connection User Manual cabinet. Strip off AC cables as shown below. Step 3 For flexible cables (stranded wires), use crimping lugs. The cross section of the AC cable conductor must be sized in order to prevent accidental disconnections of the inverter from the grid due to high impedance of the cable that connects the inverter to the power supply point.
  • Page 53 User Manual 6 Electrical Connection Item Name Disc spring L1 L2 L3 *Images shown here are for reference only! Actual product you receive may differ.  It is unnecessary to distinguish between phases during AC cable connection for the inverter has self-adaptive capacity. ...

  • Page 54: Connecting Inverter To Pv Arrays

     Make sure the voltage of each PV array is less than 1500V at all times. Permanent damage may occur otherwise.  Make sure the max. short-circuit current of the DC side is within the permissible range. Permanent damage may occur otherwise. PV Arrays SG125HV DC Combiner box String #1 ● ● ● String #N...

  • Page 55: Requirements For Ot/Dt Terminal (Dc)

    User Manual 6 Electrical Connection The SG125HV/SG125HV-20 is a single stage inverter with only one MPPT. To make full use of the DC input power and reduce the power loss caused by mismatch, the type and rating of the PV modules connected to one inverter should be the same, including: ...
  • Page 56 6 Electrical Connection User Manual DC Cable Requirements Select DC cables according to the following factors:  The maximum operating temperature of the cable should no less than 90° C(+194°F).  The current rating of the cable should be selected in accordance with the maximum short circuit current of the PV arrays connected to the inverter.
  • Page 57 User Manual 6 Electrical Connection Rotate the DC switch to the “OFF” Step 1 position. Strip the insulation layer of the DC cable to Step 2 proper length according to the DC cable specification. Insert the end of the DC cable to the cable socket that matches with the Step 3 M10 bolt and tighten it with the proper tool.

  • Page 58: Additional Grounding Connection

    Once positive and negative inputs are short-circuited, it can cause unrecoverable damage to the inverter. SUNGROW shall hold no liability for any possible consequences caused by ignorance of this warning.  Check the positive and negative polarity of the PV cells. After confirmation, you can insert the DC connectors into the input terminals on the bottom of the inverter.

  • Page 59: Additional Grounding Terminal

    User Manual 6 Electrical Connection implement an equipotential connection. Inverter 1 Inverter 2 Inverter n PV Arrays 1 PV Arrays 2 PV Arrays n Mounting Frame of PV arrays Equipotential cable Grounding of PV Power System L2 L3 AC Circuit Breaker Inverter AC Grounding Electrode Grounding of Inverter AC Side...

  • Page 60: Rs485 Communication Connection

    6 Electrical Connection User Manual The connection of additional grounding terminal is optional. Whether to connect the terminal is determined according to local standards or regulations, but connection is recommended. Cable Connection Item Name Description Screw M6×12mm Lock washer Washer Cable socket Grounding cable*...

  • Page 61: Rs485 Communication System

    User Manual 6 Electrical Connection 120Ω terminating resistor switch Configuration circuitboard RS485_2 ALARM RS485_1 COM1 COM1 NC1 NO1 PGND DIN1 PGND DIN1 LOCAL STOP Fig. 6-11 Communication configuration The inverter operation information can be transferred to the PC of the installed monitoring software or to a local data collector through RS485 communication connection.
  • Page 62 6 Electrical Connection User Manual Inverter RS485 cable Ethernet cable RS485-2 Data Logger RS485 Ethernet Ethernet port terminal terminal RS485 Communication of inverter Communication Terminating Inverter connection (RS485 Resistor connection) Only out 120ohm Single inverter For Multiple Inverters Where there is more than one inverter, all inverters can be connected in a daisy chain through an RS485 communication cable.

  • Page 63: Rs485 Communication Connection

    User Manual 6 Electrical Connection Communication Terminating Resistor Inverter connection (RS485 bus n>15 n≤15 connection) Only out 120ohm 120ohm Inverter 1 In and Out 120ohm Inverter 2~n-1 In and Out 120ohm 120ohm Inverter n 6.5.3 RS485 Communication Connection RS485A/B Bus Connection Thread the Network cable through communication cable gland to the Step 1 configuration circuit board.

  • Page 64: Configurable Dry Contact

    If more than one inverter is connected to PC or Logger, please set the communication parameters from the APP interface. Logger 3000 is optional parts and can be ordered from SUNGROW. 6.6 Configurable Dry Contact There are Fault Alarm dry contacts and Local Stop dry contacts located on the...
  • Page 65 User Manual 6 Electrical Connection RS485_2 ALARM RS485_1 A2 B2 COM1 COM1 NC1 NO1 PGND DIN1 PGND DIN1 LOCAL STOP Fault Alarm dry contacts The dry contacts can be configured as fault alarm. When the inverter is running normally, the two terminals NC&COM are short-circuited. when a fault occurs, the two terminals NC&COM are break out.
  • Page 66 6 Electrical Connection User Manual Inverter N Inverter1 Inverter2 LOCAL STOP LOCAL STOP LOCAL STOP PGND DIN1 PGND DIN1 PGND DIN1 PGND DIN1 PGND DIN1 PGND DIN1 Fig. 6-12 Multiple inverters connected in a daisy chain topology...

  • Page 67: Commissioning

    7 Commissioning Commissioning is a critical procedure for a PV system, which can protect the system from fires, and personnel from injury and electrical shock. 7.1 Inspection before Commissioning Before starting the inverter, you should check the following items. The inverter should be accessible for operation, maintenance and service.
  • Page 68 7 Commissioning User Manual  DC-link starts to charge and check the state of the utility grid;  If the conditions are OK, the inverter feeds AC power to the grid and enters into the running state. Observe the status of LED indicator panel (Refer to Tab. 2-2LED Step 5 indicator description).

  • Page 69: Disconnecting, Dismantling And Disposing The Inverter59

    8 Disconnecting, Dismantling and Disposing the Inverter 8.1 Disconnecting the Inverter For maintenance work or any service work, the inverter must be switched off. During normal operation, the inverter should remain switched on. Proceed as follows to disconnect the inverter from DC and AC power sources Step 1 Disconnect the external AC circuit breaker or disconnect to prevent it from accidentally reconnecting to the utility grid.

  • Page 70: Disposal Of The Inverter

    8 Disconnecting, Dismantling and Disposing the Inverter User Manual 8.3 Disposal of the Inverter System owners and the O&M company are responsible for the disposal of the inverter. Some parts and devices in the inverter, such as the LED indicator panel, batteries, modules and other components, may cause environmental pollution.

  • Page 71: Troubleshooting And Maintenance

    APP or the LCD. 3. Check whether the cross-sectional area of the AC cable meets the requirement. 4. If the fault is not caused by the foregoing reasons and still exists, contact Sungrow Service. Grid transient...
  • Page 72 3. Check whether the AC cable is firmly in place. 4. If the fault is not caused by the foregoing reasons and still exists, contact Sungrow Service. Generally, the inverter will be reconnected to the grid after the grid returns to normal. If the fault occurs repeatedly: 1.
  • Page 73 AC and DC switches 15 Device anomaly minutes later to restart the inverter. If the fault still exists, contact Sungrow Service. 1. The fault can be caused by poor sunlight or damp environment, and the inverter will be reconnected to the grid after the environment is improved.
  • Page 74 Service. Output overload, configured module power is Wait for the inverter to return to normal. excessively large If the fault still exists, contact Sungrow and out of the Service. normal operation range inverter. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 75 AC and DC switches 15 019-020 Device anomaly minutes later to restart the inverter. If the fault still exists, contact Sungrow Service. Wait for the inverter to return to normal. Disconnect the AC and DC switches, and reconnect the AC and DC switches 15...
  • Page 76 Wait for the inverter to return to normal. Disconnect the AC and DC switches, and reconnect the AC and DC switches 15 040-042 Device anomaly minutes later to restart the inverter. If the fault still exists, contact Sungrow Service. ambient temperature, ambient temperature Stop and disconnect the inverter.
  • Page 77 Disconnect the AC and DC switches, and reconnect the AC and DC switches 15 Device anomaly minutes later to restart the inverter. If the fault still exists, contact Sungrow Service. 1. Check if the x PV string needs to be connected.
  • Page 78 Restart the inverter or clear the fault through Protection the App. self-check failure If the fault still exists, contact Sungrow on grid side Service. 1. Check whether the AC cable is correctly connected. 2. Check whether the insulation between the Grounding cable ground cable and the live wire is normal.
  • Page 79 220~227 PVx abnormal 2. Check if the xth DC fuse is damaged. If so, replace the fuse. 3.If the fault is not caused by the foregoing reasons and still exists, contact Sungrow Service. *The code code corresponding to PV 5 to PV 12 respectively.

  • Page 80: Maintenance

    0.5A. String x reverse 564-571 2. If the fault is not caused by the foregoing connection alarm reasons and still exists, contact Sungrow Service. *The code code corresponding to string 17 to string 24 respectively.

  • Page 81: Maintenance Instruction

    User Manual 9 Troubleshooting and Maintenance 9.2.2 Maintenance Instruction Fan Maintenance Fans inside the inverter are used to cool the inverter during operation. If the fans do not operate normally, the inverter may not be cooled down and inverter efficiency may decrease. Therefore, it is necessary to clean the dirty fans and replace the broken fans in time.
  • Page 82 9 Troubleshooting and Maintenance User Manual Press the hump of the latch hook and Step 7 unplug cable connection joint outwards. When the side clearance is restricted, Step 8 loosen screws in the middle of the fan guide rail to remove the first fan. Remove all the fans from the inverter.

  • Page 83: Isolarcloud App

    10 iSolarCloud APP 10.1 Brief Introduction The iSolarCloud APP can establish communication connection to the inverter via the Bluetooth, thereby achieving near-end maintenance on the inverter. Users can use the APP to view basic information, alarms, and events, set parameters, or download logs, etc. *In case the communication module Eye or WiFi is available, the iSolarCloud APP can also establish communication connection to the inverter via the mobile data or WiFi, thereby achieving remote maintenance on the inverter.

  • Page 84: Menu

    10 iSolarCloud APP User Manual The APP icon appears on the home screen after installation. iSolarCloud 10.3 Menu iSolarCloud Home Boot / Shutdown Faults and alarms Running information System parameter Power generation Communication parameter History record Operation parameter Events Protection parameter More Modify password Fig.

  • Page 85: Login Steps

    User Manual 10 iSolarCloud APP  The mobile phone is within 5m away from the inverter and there are no obstructions in between.  The Bluetooth function of the mobile phone is enabled. 10.4.2 Login Steps Open the APP to enter the login interface, and click "Direct Login" to Step 1 enter the next screen.

  • Page 86: Home Page

     To set inverter parameters related to grid protection and grid support, contact SUNGROW to obtain the advanced account and corresponding password. If the inverter is not initialized, you will enter the quick setting screen of Step 4 initialize protection parameter.
  • Page 87 User Manual 10 iSolarCloud APP SG125HV  Fig. 10-5 Home page Tab. 10-1 Home page description Designation Description Date and time System date and time of the inverter Present operation state of the inverter Inverter state For details, refer to Tab. 10-2Description of inverter state.

  • Page 88: Running Information

    10 iSolarCloud APP User Manual Tab. 10-2 Description of inverter state State Description After being energized, inverter tracks the PV arrays’ maximum power point (MPP) and converts the DC power into AC power. This is the normal operation mode. Stop Inverter is stopped.
  • Page 89 User Manual 10 iSolarCloud APP Fig. 10-6 Running Information The run info includes the input, output, string, grid voltage, grid current, environment, and other information. Tab. 10-4 Run info Parameter Description the total PV input power Total DC power（kW） Input MPPTx voltage(V) the input voltage MPPTx current(A)

  • Page 90: History Record

    10 iSolarCloud APP User Manual Parameter Description Internal temperature of the Environment Inner temperature（℃） inverter In parallel resistance to ground （kΩ） Other Countries info Inverter selected country code Inverter selected command Command info information 10.7 History Record Tap " " on the navigation bar to enter the history record screen, as shown in the following figure.

  • Page 91: Yields Records

    User Manual 10 iSolarCloud APP  Click " " to select a time segment and view corresponding records.  The inverter can record up to 100 latest entries. Select one of the records in the list and click the record, to view the detailed fault info as shown in following figure.

  • Page 92: Event Records

    10 iSolarCloud APP User Manual Fig. 10-10 Power curve Tap the time bar on the top of the screen to select a time segment and view the corresponding power curve. Swipe left to check the power yields histogram Step 2 10.7.3 Event Records Click "...

  • Page 93: Power On/Power Off

    User Manual 10 iSolarCloud APP Fig. 10-11 More 10.8.1 Power On/Power Off Click “ ” or ” ” and click “ ” in the dialog box popped out to start or stop the inverter as shown in the following figure. Fig.

  • Page 94: Communication Parameters

    10 iSolarCloud APP User Manual Fig. 10-13 System parameter Tab. 10-6 Explanation of system parameters Parameter Description Date Setting Time deviation between the time on the inverter and the local time of the installation site may cause data logging Time Setting failure.

  • Page 95: Operation Parameters

    User Manual 10 iSolarCloud APP Tab. 10-7 Explanation of communication parameters Parameter Setting Range Device address 1-247 10.8.4 Operation Parameters Click the “ ” to check the operation parameters and set the related parameters as shown in the following figure. The operation parameters include the active &...
  • Page 96 10 iSolarCloud APP User Manual Tab. 10-8 Description of Active & reactive power parameters Parameter Description Default Range Active power limit Inverter active power 100.0% 0~100% limitation Speed control active power [OFF] [OFF]/ [ON] change rate. When it is set to [ON], user can set the raise and decline rate.

  • Page 97: Protection Parameters

    User can only check the parameter in this interface. The default values of the protection parameters have been preset as per grid code of corresponding countries. To set the protection parameter, please contact SUNGROW to acquire advanced password.
  • Page 98 10 iSolarCloud APP User Manual Fig. 10-18 Protection parameter For convenient protection parameter setting, the protection parameters are preset for certain countries. After country setting, select the protection stage as single or multiple and then set the corresponding protection parameter. Tab.
  • Page 99 User Manual 10 iSolarCloud APP Parameter Default Range AC over-frequency level 2 protection value 62Hz 60.12Hz -65Hz AC under-voltage level 2 protection time 11.00s 0.05s-600s AC over-voltage level 2 protection time 0.16s 0.05s-600s AC under-frequency level 2 protection time 0.16s 0.05s-600s AC over-frequency level 2 protection time 0.16s...

  • Page 100: Password Changing

    10 iSolarCloud APP User Manual  AC under-voltage level 1 protection value≥AC under-voltage level 2 protection value≥AC under-voltage level 3 protection value;  AC over-voltage level 1 protection value≤AC over-voltage level 2 protection value≤AC over-voltage level 3 protection value;  AC under-frequency level 1 protection value≥AC under-frequency level 2 protection value≥AC under-frequency level 3 protection value;...
  • Page 101 User Manual 10 iSolarCloud APP following figure. Fig. 10-19 Change password The new password should consist of 6 characters, a combination of letters and digits.

  • Page 102: Appendix

    11 Appendix 11.1 Technical Data Parameters SG125HV SG125HV-20 Input (DC) Max. PV input voltage 1500V Min.PV input voltage/Startup 860V/920V input voltage Nominal input voltage 1050V MPP voltage range 860-1450V MPP voltage range for nominal 860-1250V power No. of independent MPP inputs No.

  • Page 103: Tightening Torques

    User Manual 11 Appendix Parameters SG125HV SG125HV-20 Grid monitoring DC switch / AC switch Yes / Yes Anti-PID function Optional PID recovery function Optional Overvoltage protection DC Type II / AC Type II Night SVG function General Data Dimensions (W*H*D) 670*902*296 mm/26.4’’*35.5’’*11.7’'...

  • Page 104: Exclusion Of Liability

     Unforeseen calamity or force majeure The use of supplied software produced by Sungrow Power Supply Co., Ltd.. is subject to the following conditions:  Sungrow Power Supply Co., Ltd. assumes no liability for direct or indirect damages arising from the use of SolarInfo software.

  • Page 105: Contact Information

    Fault code/name   Serial number of the inverter Brief description of the problem China (HQ) Australia SUNGROW POWER SUPPLY Co., SUNGROW Australia Group Pty. Ltd. Hefei +61 2 9922 1522 +86 551 65327834 service@sungrowpower.com.au service@sungrowpower.com Brazil France SUNGROW France – Siege Social...
  • Page 106 SUNGROW SEA LIMITED Selangor Darul Ehsan Seoul +60 19 897 3360 +82 70 7719 1889 service@my.sungrowpower.com service@kr.sungrowpower.com Thailand Philippines SUNGROW Power (Hong Kong) Co., SUNGROW POWER SUPPLY Co., Ltd. Bangkok Mandaluyong City +66 891246053 +63 9173022769 service@th.sungrowpower.com service@ph.sungrowpower.com Spain Romania SUNGROW Ibé...

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