Sungrow SG3125HV-20 System Manual
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Sungrow SG3125HV-20 System Manual

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S S G G 3 3 1 1 2 2 5 5 H H V V - - 2 2 0 0 / / S S G G 3 3 4 4 0 0 0 0 H H V V - -
2 2 0 0 T T u u r r n n k k e e y y S S t t a a t t i i o o n n S S y y s s t t e e m m
M M a a n n u u a a l l S S G G 3 3 1 1 2 2 5 5 H H V V _ _ 3 3 4 4 0 0 0 0 H H V V - - 2 2 0 0 - -
S S E E N N - - V V e e r r 1 1 1 1 2 2 - - 2 2 0 0 2 2 0 0 0 0 7 7
SG3125HV_3400HV-20-SEN-Ver112-202007
SG3125HV-20/SG3400HV-20
T T u u r r n n k k e e y y S S t t a a t t i i o o n n
S S y y s s t t e e m m M M a a n n u u a a l l

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Summary of Contents for Sungrow SG3125HV-20

  • Page 1 S S E E N N - - V V e e r r 1 1 1 1 2 2 - - 2 2 0 0 2 2 0 0 0 0 7 7 SG3125HV_3400HV-20-SEN-Ver112-202007 SG3125HV-20/SG3400HV-20 T T u u r r n n k k e e y y S S t t a a t t i i o o n n...

  • Page 3: Table Of Contents

    C C o o n n t t e e n n t t s s 1 About This Manual ..................1 1.1 Validity ......................1 1.2 Content ......................1 1.3 Target Group....................1 1.4 Symbols Explanation ..................2 1.5 How to Use this Manual................3 1.6 Terminology ....................
  • Page 4 3.2.1 Internal Components ................ 12 3.2.2 Cable Entry Design ................13 3.2.3 Internal Devices of the Inverter............15 3.2.4 Operations on the DC and AC Side............ 16 4 Delivery ......................19 4.1 Scope of Delivery ..................19 4.2 Identifying the Inverter ................20 4.3 Checking for Transport Damages ...............
  • Page 5 6.3.2 Cable Specifications ................. 36 6.4 DC Connection................... 37 6.4.1 Checking before Connection............. 37 6.4.2 DC Cable Connection ............... 37 6.5 AC Connection ................... 39 6.5.1 Safety Notices .................. 39 6.5.2 AC Cable Connection................ 40 6.6 Ground Connection ..................43 6.7 Communication Connection ...............
  • Page 6 9.1.2 Start Steps..................58 9.2 Stopping ....................59 9.2.1 Normal Stop ..................59 9.2.2 Stop in Case of Fault................. 59 10 LCD Menu Operation ................61 10.1 LCD TouchScreen ..................61 10.2 Default Screen ..................61 10.2.1 Initialization..................61 10.2.2 Default Screen Introduction ............61 10.2.3 Backlight and Screensaver .............
  • Page 7 11.2.1 Introduction to Active Power Limitation..........91 11.2.2 How to Realize Power Limitation ............. 91 11.3 Reactive Power Adjustment ..............92 11.4 Low Voltage Ride Through (LVRT) ............93 11.5 High Voltage Ride Through (HVRT) ............93 11.6 Temperature Derating ................94 11.7 MPPT.......................
  • Page 8 13.3.6 Cleaning the Surface of the Inverter ..........118 13.3.7 Checking the Lock and Hinge ............118 13.3.8 Checking the Sealing Strip ............118 13.4 Painting Make-up Measures..............118 13.5 Replacing the Electrical Components ............. 122 13.5.1 Safety Instructions ................ 122 13.5.2 Replacing DC Fuses ..............

  • Page 9: About This Manual

    About This Manual 1.1 Validity This manual is intended for the following product: SG3125HV-20 • SG3400HV-20 • 1.2 Content This manual contains the following information: D D e e s s c c r r i i p p t t i i o o n n...

  • Page 10: Symbols Explanation

    1 About This Manual System Manual perform any operation on the Turnkey Station and should be away from the Turnkey Station to avoid potential hazards. Qualified personnel are: Equipped with certain electrical wiring and mechanical knowledge and familiar with • electrical and mechanical principle diagram Familiar with the construction and working principle of the PV grid-connected power •...

  • Page 11: How To Use This Manual

    All rights reserved including the pictures, markings and symbols used. Any reproduction or disclosure, even partially, of the contents of this manual is strictly forbidden without prior written authorization of Sungrow. The contents of the manual will be periodically updated or revised due to the product development.

  • Page 12: Safety Instructions

    Safety Instructions 2.1 Intended Usage The inverter, designed and manufactured by Sungrow, is mainly applied to large-and- medium PV power station. The inverter can meet the requirements of modular design and quick installation for large-and-medium PV power station and can ensure the long- term, reliable, and safe feed-in operation.

  • Page 13: General Safety Rules

    System Manual 2 Safety Instructions 2.2.1 General Safety Rules Touching the terminals or contactors connected to the grid may lead to electric shock! Do not touch the terminals or conductors connected to the grid. • Respect all safety instructions on the grid connection. •...

  • Page 14: Pv Arrays Hazards

    2 Safety Instructions System Manual 2.2.3 PV Arrays Hazards DC high voltage! Electric shock hazards! When exposed to sunlight, PV array will produce voltage, which is very high in large-scale power station Death from burning and electric shock due to touching the PV array. During installation, maintenance, and troubleshooting of the device, ensure that: The inverter is disconnected from the PV array.

  • Page 15: Volt-Free Operations

    System Manual 2 Safety Instructions 2.2.7 Volt-free Operations Perform operations on the inverter only when all devices inside the inverter are completely voltage-free. Avoid any inadvertent re-connections. • Verify that no voltage or current is present with appropriate measurement instrument. •...

  • Page 16: Safety Warning Signs

    2 Safety Instructions System Manual Do not damage or tear the symbols. All symbols on the device body must be clearly legible. • Replace the symbols once any damage or illegibility is detected. • 2.2.12 Safety Warning Signs During transport, installation, maintenance, and troubleshooting of the inverter, keep unauthorized persons away.

  • Page 17: Manual Description

    All the descriptions in this manual are based on the standard inverter, and the actual product you receive may differ. If necessary, specify your requirements when placing the order. This manual may not cover all possible situations. Should a specific problem not explained in this manual occur, contact Sungrow.

  • Page 18: Product Description

    Product Description 3.1 Overall Design of the Inverter 3.1.1 Inverter Views D D e e s s c c r r i i p p t t i i o o n n V V i i e e w w Front view.

  • Page 19: Mechanical Parameter

    System Manual 3 Product Description The LEDs at the upper side of the Control and Monitoring Window: POWER indicates the power-on state; OPERATION indicates the proper operation of the inverter; FAULT indicates a fault condition. L L E E D D I I n n d d i i c c a a t t o o r r s s The working status of the inverter can be acquired through these LEDs.

  • Page 20: Ventilation Design

    3 Product Description System Manual C C l l e e a a r r a a n n c c e e S S p p a a c c e e s s The clearances around the inverter should be sufficient for the doors to be opened 3.1.3 Ventilation Design The ventilation system is designed as the cool air is drawn from the bottom of the inverter and hot air is exhausted from the top of the inverter.

  • Page 21: Cable Entry Design

    System Manual 3 Product Description D D e e s s c c r r i i p p t t i i o o n n N N o o . . D D e e v v i i c c e e That includes fuses and DC switches.
  • Page 22 3 Product Description System Manual N N o o . . N N a a m m e e N N o o t t e e DC cables are connected to the DC DC cable inlets cabinet through these 3 holes. AC cables are connected to the AC cable inlets inverter through this hole.

  • Page 23: Internal Devices Of The Inverter

    System Manual 3 Product Description N N o o . . N N a a m m e e N N o o t t e e Communication & power distribution Communication & power cables come inside the inverter through distribution cable entry this hole.

  • Page 24: Operations On The Dc And Ac Side

    3 Product Description System Manual A A C C C C a a b b i i n n e e t t f f i i g g u u r r e e 3 3 - - 2 2 AC cabinet D D e e s s c c r r i i p p t t i i o o n n N N o o .
  • Page 25 System Manual 3 Product Description As shown in the following figure (b), AC circuit breakers are provided on the AC side • of the inverter. D D e e s s c c r r i i p p t t i i o o n n N N o o .
  • Page 26 3 Product Description System Manual After the breaker is switched on, the breaker panel displays CLOSED. Never manually connect the AC circuit breaker when the AC side carries voltage. Switch off • Press the Push OFF button on the breaker panel to switch off the breaker. After the breaker is switched off, the breaker panel displays OPEN...

  • Page 27: Delivery

    Delivery 4.1 Scope of Delivery The scope of delivery of the inverter is shown in the following table: Q Q u u a a n n t t i i t t y y N N o o . . D D e e v v i i c c e e N N o o t t e e Inverter...

  • Page 28: Identifying The Inverter

    Therefore, once receiving the inverter, perform a detailed inspection. If any damage is found, contact the forwarding company or Sungrow immediately. Check the scope of delivery described in "4.1 Scope of Delivery"for completeness.

  • Page 29: Storage Of The Inverter

    System Manual 4 Delivery Install and commission the inverter only when it is technically faultless! Make sure before installing the inverter that the inverter is intact without any damage; and • all devices inside the inverter are intact without any damages. •...

  • Page 30: Mechanical Installation

    Mechanical Installation Respect all local standards and requirements during mechanical installation. 5.1 Transport All devices are installed inside the inverter before delivery. The inverter should be transported as a whole. Transport the inverter by a crane with sufficient load capacity. The inverter is delivered to the user by the forwarding company.

  • Page 31: Hoisting The Inverter

    System Manual 5 Mechanical Installation Place the inverter carefully and gently. Do not pull or push the inverter on any surface. • The place should be firm and flat with good drainage and no obstacles or outshoots. • The inverter should be supported by the four feet. 5.2 Hoisting the Inverter 5.2.1 Safety Precautions Observe the safety operating rules of the crane at all times.

  • Page 32: Hoisting

    5 Mechanical Installation System Manual 5.2.2 Hoisting During the whole hoisting process, observe the following rules: Hoist the inverter in a vertical manner. Do not drag or drop the inverter on any • surface. When the inverter has been hoisted for about 300mm away from the ground, stop to •...

  • Page 33: Fastening Of Connectors

    System Manual 5 Mechanical Installation 5.2.3 Fastening of Connectors Use slings with hooks or U-hooks to hoist the inverter. The lifting devices should be correctly connected to the inverter. L L i i f f t t i i n n g g d d e e v v i i c c e e H H o o o o k k U U - - h h o o o o k k Connections...

  • Page 34: Foundation

    System Manual National and local safety rules should be observed at all times. Violating relevant safety rules may void pertinent warranty claims from Sungrow. 5.3 Foundation 5.3.1 Selection of Installation Site When selecting the installation site, consider the following requirements at least: Ambient and geological conditions, such as stress wave emissions, the level of •...

  • Page 35: Recommended Foundation Construction Plan

    System Manual 5 Mechanical Installation According to the cable design of inverter and for easy electrical connection, • establish cable trenches on the bottom of the inverter, i.e. reserve the cable trenches inside the foundation and pre-bury the wire pipes. The dirt dug out should be cleared immediately.

  • Page 36: Fixing The Inverter

    5 Mechanical Installation System Manual N N o o N N a a m m e e Embedded 30#-c steel channel 5.3.4 Fixing the Inverter If the foundation is constructed as the above plan, the inverter needs to be hoisted to the desired location and welded.

  • Page 37: Clearance Requirement

    System Manual 5 Mechanical Installation 5.4 Clearance Requirement On site, if two inverters are placed side by side, the minimum reserved clearances around the inverters are shown in the following figure. A A * * B B * * D D * * C C * * 4000mm 4000mm...

  • Page 38: Electrical Installation

    Electrical Installation 6.1 Safety Instructions 6.1.1 Generals Rules High voltage! Electrical shock hazards! Do not touch the live components of the device. • Make sure the AC and DC sides are voltage-free before installation. • Never put flammable materials in the vicinity of the module. •...
  • Page 39 Strictly follow all the instructions when connecting the cables. The installation and design of the inverter must fulfill national and local • standards and regulations. Sungrow shall not be held liable for the inverter or system fault caused by • ignorance of the description in this manual.

  • Page 40: Preparation Before Electrical Connections

    6 Electrical Installation System Manual Select optical fibers as the external communication cable to lower the signal interference. F F i i v v e e S S a a f f e e t t y y R R u u l l e e s s During electrical connections and other operations on the module, observe the following Five Safety Rules: Disconnect all the external connections and disconnect the inverter internal power...

  • Page 41: Cable Crimping

    System Manual 6 Electrical Installation 6.2.2 Cable Crimping Proceed as follows to connect the DC cables: step 1 Strip off the insulation cover of the cable with the tripped length of 5mm longer than the depth of the cable lug. step 2 Crimp the cable lug.
  • Page 42 6 Electrical Installation System Manual Long bolts may affect the insulation and may cause short circuit. • Remove the heat-shrink tubing between the cable lug and the copper bar if • necessary. Poor contact or over-heating may follow if otherwise. Clean the connection terminals before cable connection.

  • Page 43: Opening The Inverter Door

    System Manual 6 Electrical Installation N N o o . . N N a a m m e e N N o o . . N N a a m m e e Copper bus Flat washer Copper-aluminum adapter Spring washer terminal Bolt 6.2.4 Opening the Inverter Door...

  • Page 44: Circuit Diagram And Cable Connection

    6 Electrical Installation System Manual 6.3 Circuit Diagram and Cable Connection 6.3.1 Circuit Diagram Devices in the above figure are: N N o o . . N N a a m m e e DC input AC output External communication port External 3-phase power supply port DC cabinet Module cabinet...

  • Page 45: Dc Connection

    System Manual 6 Electrical Installation Overloading operation of cables is strictly forbidden. 6.4 DC Connection 6.4.1 Checking before Connection Check the following items before cable connections. Check the open-circuit voltage of the PV array to ensure the open-circuit voltage is •...
  • Page 46 6 Electrical Installation System Manual D D C C C C o o n n n n e e c c t t i i o o n n A A r r e e a a f f i i g g u u r r e e 6 6 - - 1 1 Version 1 f f i i g g u u r r e e 6 6 - - 2 2 Version 2 N N o o .

  • Page 47: Ac Connection

    System Manual 6 Electrical Installation Shrink the tubing with hot air blower. Cable protectors are advisable in the cable crosses if the multi-core cables are used. step 5 Connect the cable. Select bolts matching with the cable lug, . Attach the cable lug to the DC connection copper bar Fasten the bolts with screwdriver or spanner Incorrect connection sequence may cause fire.

  • Page 48: Ac Cable Connection

    6 Electrical Installation System Manual Electrical shock hazards! Do not touch the live components. • Disconnect the AC switches and ensure all terminals are voltage-free. • The connections to the downstream devices must be carried out only after • receiving approval from the distribution utility as required by national and state interconnection regulations.
  • Page 49 System Manual 6 Electrical Installation A A C C C C o o n n e e c c t t i i o o n n A A r r e e a a The AC terminals of the inverter can be connected either in the copper bar connection manner or the cable connection manner, which is specifically determined according to onsite conditions.
  • Page 50 6 Electrical Installation System Manual 6.5.2.2 AC Connection Area on the Top Proceed as this section to connect the cable when the AC cable entry is at the upper right side of the inverter. O O v v e e r r v v i i e e w w The AC connection area is on the upper right side of the Turnkey Station.

  • Page 51: Ground Connection

    System Manual 6 Electrical Installation - - - - E E n n d d 6.6 Ground Connection O O v v e e r r v v i i e e w w Generally, the ground connection includes equipotential connection of internal devices and external grounding.
  • Page 52 6 Electrical Installation System Manual The main internal electrical devices have been connected to the ground copper bar before delivery. E E x x t t e e r r n n a a l l G G r r o o u u n n d d i i n n g g Two external grounding points are located at the bottoms on the left side and right side of the inverter.

  • Page 53: Communication Connection

    Any installations not following the standards or the installation and alternation without permission may lead to safety incidents or damage to the devices. Sungrow shall hold no liability for the damages caused. 6.7 Communication Connection The cable connection areas inside the intelligent power distribution cabinet are shown in the figure below.

  • Page 54: External Power Supply Connection

    6 Electrical Installation System Manual C C o o n n n n e e c c t t e e d d d d e e v v i i c c e e T T e e r r m m i i n n a a l l d d e e f f i i n n i i t t i i o o n n 20: RS485-B 9: RS485-A Environment data monitor RS485...

  • Page 55: Finishing Electrical Connection

    System Manual 6 Electrical Installation D D e e s s c c r r i i p p t t i i o o n n R R e e c c o o m m m m e e n n d d e e d d S S p p e e c c i i f f i i c c a a t t i i o o n n s s N N o o .

  • Page 56: Disconnecting And Reconnecting The Syetem

    Disconnecting and Reconnecting the Syetem 7.1 Power Connection Point Overview N N o o . . N N a a m m e e N N o o . . N N a a m m e e PV array DC switch PV array combiner box AC circuit breaker...

  • Page 57: Disconnecting The Inverter

    System Manual 7 Disconnecting and Reconnecting the Syetem S S t t e e p p N N o o . . R R e e f f e e r r e e n n c c e e Disconnecting the inverter "7.2.1 Disconnecting the Inverter"...

  • Page 58: Disconnecting The Mv Transformer

    7 Disconnecting and Reconnecting the Syetem System Manual step 3 Ensure that the DC side of the inverters are voltage-free. step 4 Ensure that the DC wiring terminals and other to-be-operated areas of the inverters are voltage-free with a multimeter. - - - - E E n n d d 7.2.1.2 Disconnecting the Inverter (In Emergency) In case of emergency, press the emergency stop button to disconnect the AC and DC...

  • Page 59: Reconnecting The Mv Transformer

    System Manual 7 Disconnecting and Reconnecting the Syetem S S t t e e p p N N o o . . R R e e f f e e r r e e n n c c e e Reconnect the MV "7.3.1 Reconnecting the MV transformer...
  • Page 60 7 Disconnecting and Reconnecting the Syetem System Manual 7.3.3.2 Restarting the Inverter Tap "S S t t a a r r t t / / S S t t o o p p " -＞"S S t t a a r r t t " on the LCD screen to start the inverters.

  • Page 61: Commissioning

    Commissioning 8.1 Safety Instructions High voltage! Electric shock! Wear proper protection equipment before all operations on the device. • Do not touch the live terminals or conductors. • Respect all safety instructions attached on the device and described in this •...

  • Page 62: Requirements Of Commissioning

    8 Commissioning System Manual 8.2 Requirements of Commissioning Before commissioning, installation of the DC cabinet and AC cabinet inside the inverter should be checked thoroughly. Ensure all the cables are connected securely and all bolts are fixed properly. • Ensure DC side voltage meets module requirements and the polarity is correct. •...

  • Page 63: Checking Grid Voltage

    System Manual 8 Commissioning DC side voltage should be no more than max. DC input voltage of the inverter. Too high DC voltage may damage the inverter even cause safety incident. To ensure the system reliability and device operation, PV cells on the DC side of the inverter should be from the same manufacturer andnumbers of PV cells in each string should be the same.

  • Page 64: Preparation Before Starting

    8 Commissioning System Manual 8.4 Preparation before Starting Place the disassembled protection grills to their original positions and ensure the • connection is secure. Clean the device site. Make sure the position is clean without flammable or explosive • materials. Ensure the ventilation of the installation place.
  • Page 65 System Manual 8 Commissioning Check whether there are anomalies of the inverter: abnormal noise, overheating, • smoking, or unusual odor. Check the inverter grid-connected voltage, current, and THD are stable. • Check the grounding of the inverter enclosure. • Check the functionality of the LCD display. •...

  • Page 66: Starting/Stopping

    Starting/Stopping 9.1 Starting 9.1.1 Inspection before starting After the maintenance or service work, inspect the following items, and then start inverter: All connections are performed in strict accordance with relevant manual and circuit • diagram. The coverings of the internal devices are fixed and secured. •...

  • Page 67: Stopping

    System Manual 9 Starting/Stopping - - - - E E n n d d The inverter needs no manual control in daily operation. Only qualified personnel are allowed to open the cabinet door for maintenance or troubleshooting. Keep the door closed and locked and store the keys of the door by appointed personnel during normal operation.
  • Page 68 9 Starting/Stopping System Manual Press emergency stop button only when an emergency or a fault occurs. Under normal conditions, stop the inverter via the stop instruction on the LCD panel. Press the emergency stop button immediately in case of emergency to make to ensure a timely response.

  • Page 69: Lcd Menu Operation

    10 LCD Menu Operation 10.1 LCD TouchScreen The eye-level LCD touchscreen inside the monitoring window on the front side of the inverter is used by the user to view data and set parameters. For user convenience, there are a large number of pictures of the LCD interface are provided in this chapter.

  • Page 70: Backlight And Screensaver

    LCD screen contains lots of parameters pertinent to the inverter operation. All parameters must be set by appointed personnel. Do not modify any parameters without full understanding of the relevant action or without consulting Sungrow Customer Support. 10.2.3 Backlight and Screensaver If no operation has been performed on the screen for more than 5 minutes, the backlight will go off.

  • Page 71: Layout Of The Submenus

    System Manual 10 LCD Menu Operation M M a a i i n n F F i i r r s s t t s s u u b b - - S S e e c c o o n n d d s s u u b b - - m m e e n n u u T T h h i i r r d d s s u u b b - - m m e e n n u u M M e e n n u u m m e e n n u u...

  • Page 72: Entering Password

    10 LCD Menu Operation System Manual 10.4 Entering Password Inverter parameters are protected by password. User can enter into the “Set- parameter” sub-menu only after entering the correct password. Proceed as follows to enter the password: step 1 Tap “Function” from the default menu. step 2 Tap “Set-parameter”...

  • Page 73: Language Setting

    System Manual 10 LCD Menu Operation - - - - E E n n d d 10.5 Language Setting 10.5.1 Conventional Way step 1 Tap “Function” from the default menu. step 2 Tap “Set-parameter”. step 3 Tap “Sys-parameter” after entering the correct password. step 4 Tap “Language &...

  • Page 74: Checking Running Information

    10 LCD Menu Operation System Manual - - - - E E n n d d 10.7 Checking Running Information Running information related to the operation of the inverter: R R e e a a l l - - t t i i m m e e d d a a t t a a The real time running information of the 4 modules can be checked.

  • Page 75: Checking History Data

    System Manual 10 LCD Menu Operation - - - - E E n n d d 10.8.2 Checking History Data System can record the inverter running information for the latest 90 days with the records updated every 15 minutes per day. History data displays the data related to the power yields and the electric quantity of the inverter.

  • Page 76: Starting/Stopping

    10 LCD Menu Operation System Manual There may be one or more faults occur in the inverter units inside the inverter at the same time, and the fault can be viewed on the LCD screen. Follow the description in this chapter to view the fault information when the faults occur.

  • Page 77: Checking Firmware Version

    System Manual 10 LCD Menu Operation step 3 Tap “Sys-parameter” after entering the correct password. step 4 Tap “Load default” and the password inputting window appears. Tap “Load default” and the password entering window appears. - - - - E E n n d d 10.12 Checking Firmware Version User can view the firmware version of LCD and DSP as follows: step 1 Tap “Function”...

  • Page 78: Running Parameters

    10 LCD Menu Operation System Manual step 2 Tap “Set-parameter”. step 3 Tap “Com-parameter” after entering the correct password. Set parameter from the Serial Port Parameter interface for RS485 serial • communication; Set parameter from the Network Parameter interface for Network communication •...
  • Page 79 System Manual 10 LCD Menu Operation D D e e s s c c r r i i p p t t i i o o n n P P a a r r a a m m e e t t e e r r Time interval between the moment at which the stop command is T-stop-delay (s) sent via the LCD display or the PC and the moment at which the...
  • Page 80 10 LCD Menu Operation System Manual D D e e s s c c r r i i p p t t i i o o n n P P a a r r a a m m e e t t e e r r 50Hz OF For 50Hz grid type, refer to f2i in "figure 10-1 The relation curve...
  • Page 81 System Manual 10 LCD Menu Operation D D e e s s c c r r i i p p t t i i o o n n P P a a r r a a m m e e t t e e r r QU enable In QU mode, the QU function will be enabled when the actual power(%)
  • Page 82 10 LCD Menu Operation System Manual D D e e s s c c r r i i p p t t i i o o n n P P a a r r a a m m e e t t e e r r The active power regulation switch of the inverter can be set to enabled or disabled state.
  • Page 83 System Manual 10 LCD Menu Operation The relation curve between the active power and the frequency is shown in the figure below. f f i i g g u u r r e e 1 1 0 0 - - 1 1 The relation curve between the active power and the frequency The relation curve between the reactive power and the voltage is shown in the figure below.
  • Page 84 10 LCD Menu Operation System Manual f f i i g g u u r r e e 1 1 0 0 - - 3 3 Q(P) mode curve Running parameter range and default value are shown in the following table. R R a a n n g g e e P P a a r r a a m m e e t t e e r r D D e e f f a a u u l l t t...
  • Page 85 System Manual 10 LCD Menu Operation R R a a n n g g e e P P a a r r a a m m e e t t e e r r D D e e f f a a u u l l t t Adj FW drop rate(%/s) Country-specific 0.01~100...
  • Page 86 10 LCD Menu Operation System Manual R R a a n n g g e e P P a a r r a a m m e e t t e e r r D D e e f f a a u u l l t t QU var rise end(%) Country-specific 0~100...
  • Page 87 System Manual 10 LCD Menu Operation R R a a n n g g e e P P a a r r a a m m e e t t e e r r D D e e f f a a u u l l t t Preset QU var drop end Country-specific –100~0...

  • Page 88: Protection Parameters

    10 LCD Menu Operation System Manual 10.13.3 Protection Parameters S S e e t t t t i i n n g g P P r r o o t t e e c c t t i i o o n n P P a a r r a a m m e e t t e e r r step 1 Tap “Function”...
  • Page 89 System Manual 10 LCD Menu Operation D D e e s s c c r r i i p p t t i i o o n n P P a a r r a a m m e e t t e e r r Set the grid under-voltage protection Ⅱ...
  • Page 90 10 LCD Menu Operation System Manual D D e e s s c c r r i i p p t t i i o o n n P P a a r r a a m m e e t t e e r r Ⅳ_T-Fhigh trip (ms) Set the grid over-frequency Ⅳ...
  • Page 91 System Manual 10 LCD Menu Operation D D e e s s c c r r i i p p t t i i o o n n P P a a r r a a m m e e t t e e r r Passive Island Detection Enable or disable the passive islanding detection Enable...
  • Page 92 10 LCD Menu Operation System Manual D D e e s s c c r r i i p p t t i i o o n n P P a a r r a a m m e e t t e e r r Ins monitor protect threshold Insulation monitoring protection threshold value Insulation monitoring startup voltage.
  • Page 93 System Manual 10 LCD Menu Operation D D e e s s c c r r i i p p t t i i o o n n P P a a r r a a m m e e t t e e r r After detecting the AC insulation fault, the inverter IDM-AC protect rec-value(k) will automatically clear the fault when both of the...
  • Page 94 10 LCD Menu Operation System Manual R R a a n n g g e e P P a a r r a a m m e e t t e e r r D D e e f f a a u u l l t t Country-specific Ⅳ_Fgrid-max(Hz) 50~55/60~65...
  • Page 95 System Manual 10 LCD Menu Operation R R a a n n g g e e P P a a r r a a m m e e t t e e r r D D e e f f a a u u l l t t Country-specific HVRT T3(ms) 40~36000000...
  • Page 96 0.1~6000 — Manual IDM-AC Enter/Cancel Only authorized personnel can configure these parameters. If there is any question or doubt, contact Sungrow. Refer to the LCD screen for the specific setting ranges of these parameters. * is only for some countries.

  • Page 97: Main Functions

    11 Main Functions 11.1 Operation Mode 11.1.1 Mode Change After being energized, the inverter will switch among different modes as shown in the figure below. Upv is the DC input voltage of the inverter. UpvStart is the DC side startup voltage of the inverter. 11.1.2 Operation Mode Description S S t t o o p p This is the initial state of the inverter.
  • Page 98 11 Main Functions System Manual parameter are satisfied, the inverter will turn from the I I n n i i t t i i a a l l S S t t a a n n d d b b y y mode into the S S t t a a r r t t u u p p mode.

  • Page 99: Active Power Limitation

    Improper parameter configuration may affect the normal operation of the inverter! Only authorized personnel can configure these parameters. If there is any question or doubt, contact Sungrow. User can adjust the inverter active power output through the LCD display: step 1 Tap “ Function” from the default menu.

  • Page 100: Reactive Power Adjustment

    - - - - E E n n d d Improper parameter configuration may affect the normal operation of the inverter! Only authorized personnel can configure these parameters. Should any question or doubt occurs, contact Sungrow.

  • Page 101: Low Voltage Ride Through (Lvrt)

    1 1 1 1 - - 1 1 Low voltage withstand requirements Note: T1, T2, U1, and U2 are all settable parameters. Sungrow’s inverter meets the abovementioned requirements. 11.5 High Voltage Ride Through (HVRT) Technical Requirements for Connecting Photovoltaic Power Station to Power System requires that the PV plant can operate as required within certain voltage range.

  • Page 102: Temperature Derating

    1 1 1 1 - - 2 2 High voltage withstand requirements Note: T1, T2, U1, and U2 are all settable parameters. Sungrow’s inverter meets the abovementioned requirements. 11.6 Temperature Derating 11.7 MPPT...

  • Page 103: Intelligent Temperature-Control Technology

    Sungrow’s inverter is equipped with insulation resistance monitoring function to detect the system insulation resistance in real time. If low resistance is detected, it will send alarm at the first time to remind the user and prevent potential hazards.

  • Page 104: Protection Function

    11 Main Functions System Manual user should stop the device and check the specific insulation resistance via the LCD screen “Function/Run-information/Real time data”. If the insulation resistance recovers to be normal, the fault loop is on the AC side. • If the insulation resistance is still low, the fault loop is on the DC side.

  • Page 105: Overload Protection

    System Manual 11 Main Functions 11.10.5 Overload Protection When the PV array output power exceeds the inverter permissible maximum input power, the inverter will limit the power yield at maximum AC power point. If the temperature exceeds the permissible value, the inverter will automatically stop operating unless the temperature recovers to normal levels.

  • Page 106: Troubleshooting

    If otherwise,contact Sungrow. If the components need to be replaced with products from other manufacturers or of different model on site, a prior analysis and confirmation by Sungrow is required. Failure to follow this procedure may lead to physical injury or death and void all warranty from Sungrow.

  • Page 107: Fault And Troubleshooting On The Inverter

    12 Troubleshooting If there is any questions or doubts that are not covered by this manual, contact us. With the following information provided, Sungrow shall diagnose and solve the problem more easily: Type and serial number of the inverter and internal devices •...
  • Page 108 12 Troubleshooting System Manual F F a a u u l l t t F F a a u u l l t t E E x x p p l l a a n n a a t t i i o o n n M M e e a a s s u u r r e e s s s s e e v v e e r r i i t t y y n n a a m m e e...
  • Page 109 System Manual 12 Troubleshooting F F a a u u l l t t F F a a u u l l t t E E x x p p l l a a n n a a t t i i o o n n M M e e a a s s u u r r e e s s s s e e v v e e r r i i t t y y n n a a m m e e...
  • Page 110 12 Troubleshooting System Manual F F a a u u l l t t F F a a u u l l t t E E x x p p l l a a n n a a t t i i o o n n M M e e a a s s u u r r e e s s s s e e v v e e r r i i t t y y n n a a m m e e...
  • Page 111 System Manual 12 Troubleshooting F F a a u u l l t t F F a a u u l l t t E E x x p p l l a a n n a a t t i i o o n n M M e e a a s s u u r r e e s s s s e e v v e e r r i i t t y y n n a a m m e e...
  • Page 112 12 Troubleshooting System Manual F F a a u u l l t t F F a a u u l l t t E E x x p p l l a a n n a a t t i i o o n n M M e e a a s s u u r r e e s s s s e e v v e e r r i i t t y y n n a a m m e e...
  • Page 113 System Manual 12 Troubleshooting F F a a u u l l t t F F a a u u l l t t E E x x p p l l a a n n a a t t i i o o n n M M e e a a s s u u r r e e s s s s e e v v e e r r i i t t y y n n a a m m e e...
  • Page 114 12 Troubleshooting System Manual F F a a u u l l t t F F a a u u l l t t E E x x p p l l a a n n a a t t i i o o n n M M e e a a s s u u r r e e s s s s e e v v e e r r i i t t y y n n a a m m e e...
  • Page 115 Check whether the DC fuse have blown. DC fuse- DC fuses of the abnorm- inverter are Minor If so, contact Sungrow and replace the abnormal. fuses. Branch fuses of Branch Refer to the measures for "DC fuse- the inverter are...
  • Page 116 If the fault still exists, contact Sungrow Service. If the following fault occurs, immediately contact Sungrow Service. (referred to as "- Sungrow" hereinafter). F F a a u u l l t t E E x x p p l l a a n n a a t t i i o o n n...
  • Page 117 M M e e a a s s u u r r e e s s s s e e v v e e r r i i t t y y Internal Com- Major Contact Sungrow. communication of the Failure inverter is abnormal Addresses of the...

  • Page 118: Other Fault And Troubleshooting

    Refer to the with PC. are matched. "Measures". Communicate again after replacing the converter. The monitor software is installed incorrectly. It is recommended to reinstall the software. If all the above-mentioned items are correct and this fault continues, contact Sungrow.

  • Page 119: Routine Maintenance

    13 Routine Maintenance 13.1 Safety Instructions Due to ambient temperature, humidity, dust, and vibration, the inverter and the internal components will age and wear. To ensure the system safety and maintain the efficiency of the inverter, it is necessary to carry out routine and periodic maintenance. All measures, which can help the inverter work in good conditions, are within the maintenance scope.

  • Page 120: Maintenance

    13 Routine Maintenance System Manual F F i i v v e e S S a a f f e e t t y y R R u u l l e e s s Respect the following five rules in maintaining or servicing the inverter to ensure the safety of the maintainer.
  • Page 121 Repair immediately any anomalies found during routine maintenance. If there are any doubts, contact Sungrow. M M a a i i n n t t e e n n a a n n c c e e ( ( o o n n c c e e e e v v e e r r y y t t w w o o y y e e a a r r s s ) )
  • Page 122 13 Routine Maintenance System Manual M M a a i i n n t t e e n n a a n n c c e e ( ( o o n n c c e e e e v v e e r r y y y y e e a a r r ) ) C C h h e e c c k k i i t t e e m m C C h h e e c c k k m m e e t t h h o o d d Check the following items and make corrections if...
  • Page 123 System Manual 13 Routine Maintenance C C h h e e c c k k i i t t e e m m C C h h e e c c k k m m e e t t h h o o d d Check whether grounding...

  • Page 124: Cleaning The Inverter

    13 Routine Maintenance System Manual C C h h e e c c k k i i t t e e m m C C h h e e c c k k m m e e t t h h o o d d Check whether the time displayed on the LCD is •...

  • Page 125: Cleaning The Foundation

    System Manual 13 Routine Maintenance The vacuum cleaner can get power supply from the backup socket inside the intelligent power distribution cabinet. For the marking of the backup socket, refer to the circuit diagram inside the cabinet door of the intelligent power distribution cabinet.

  • Page 126: Cleaning The Surface Of The Inverter

    Do not pull hard during cleaning and replacing of the filter cotton and filter screen. The cotton and the screen may be damaged if otherwise. Contact Sungrow to order the filter. You can cut proper filters out of the larger filter.
  • Page 127 System Manual 13 Routine Maintenance F F i i g g u u r r e e S S t t e e p p 1. Clean the smudginess on the surface by using a rag (or other cleaning tool) with water 2.
  • Page 128 13 Routine Maintenance System Manual F F i i g g u u r r e e S S t t e e p p 1. Polish the rough paint surface or the scratched parts by abrasive paper until the surface is smooth 2.
  • Page 129 System Manual 13 Routine Maintenance Paint RAL7035 / Munsell color JN-82 N8.2 • F F i i g g u u r r e e S S t t e e p p 1. Polish the damaged parts of the paint to remove the surface rust or other roughness 2.

  • Page 130: Replacing The Electrical Components

    Strictly observe the instructions in this chapter to replace the fuse. Any personal injury or property damage caused by the disobedience of this chapter may void pertinent warranty claims from Sungrow. Only qualified technical persons who have fully understood the description in this chapter can perform the operations in this chapter.
  • Page 131 System Manual 13 Routine Maintenance * The figure is indicative only, and actual product may differ. Before replacing the fuses, remove protective grid installed at the DC fuse area at the bottom of the DC cabinet. O O p p e e r r a a t t i i o o n n s s b b e e f f o o r r e e R R e e p p l l a a c c e e m m e e n n t t Follow the procedure below to replace the fault fuse.
  • Page 132 13 Routine Maintenance System Manual D D e e s s c c r r i i p p t t i i o o n n s s F F i i g g u u r r e e 1.
  • Page 133 System Manual 13 Routine Maintenance S S c c h h e e m m e e 2 2 : : F F o o r r t t h h e e B B o o l l t t - - f f a a s s t t e e n n i i n n g g T T y y p p e e D D e e s s c c r r i i p p t t i i o o n n s s F F i i g g u u r r e e 1.

  • Page 134: Appendix

    14 Appendix 14.1 System Parameters I I n n p p u u t t ( ( D D C C ) ) S S G G 3 3 4 4 0 0 0 0 H H V V - - 2 2 0 0 S S G G 3 3 1 1 2 2 5 5 H H V V - - 2 2 0 0 Max.

  • Page 135: Tightening Torques

    System Manual 14 Appendix DC input protection Load break switch + fuse AC output protection Circuit breaker Overvoltage protection DC Type I + II / AC Type II Grid monitoring Ground fault monitoring Insulation monitoring Overheat protection Q at night Optional Optional Anti-PID function...

  • Page 136: 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 •...
  • Page 137 System Manual 14 Appendix China (HQ) Australia Sungrow Australia Group Pty. Ltd. Sungrow Power Supply Co., Ltd Sydney Hefei +86 551 65327834 +61 2 9922 1522 service@sungrowpower.com service@sungrowpower.com.au Brazil France SungrowDo Brasil Sungrow France – Siege Social Sao Paulo Paris +55 11 2366 1957 latam.service@sa.sungrowpower.com...
  • Page 138 14 Appendix System Manual Romania Turkey Service Partner - Elerex Sungrow Deutschland GmbH Turkey Istanbul Representative Bureau +40 241762250 Istanbul service.romania@sungrow.co +90 2127318883 service.turkey@sungrow.co U.S.A, Mexico Sungrow Power UK Ltd. Sungrow USA Corporation Milton Keynes PhoenixArizona +44 (0) 0908 414127 +1833 7476937 service.uk@sungrow.co...

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