Sungrow SG250HX-IN-20 User Manual
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Sungrow SG250HX-IN-20 User Manual

Pv grid-connected inverter
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S S G G 2 2 5 5 0 0 H H X X - - I I N N - - 2 2 0 0 P P V V G G r r i i d d - -
C C o o n n n n e e c c t t e e d d I I n n v v e e r r t t e e r r U U s s e e r r
M M a a n n u u a a l l S S G G 2 2 5 5 0 0 H H X X - - I I N N – – 2 2 0 0 – – U U E E N N - -
V V e e r r 3 3 1 1 - - 2 2 0 0 2 2 1 1 0 0 1 1
SG250HX-IN–20–UEN-Ver31-202101
SG250HX-IN-20
P P V V G G r r i i d d - - C C o o n n n n e e c c t t e e d d I I n n v v e e r r t t e e r r
U U s s e e r r M M a a n n u u a a l l

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Summary of Contents for Sungrow SG250HX-IN-20

  • Page 1 SG250HX-IN–20–UEN-Ver31-202101 SG250HX-IN-20 P P V V G G r r i i d d - - C C o o n n n n e e c c t t e e d d I I n n v v e e r r t t e e r r...

  • Page 3: All Rights Reserved

    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

    V V a a l l i i d d i i t t y y This manual is valid for the following inverter types: SG250HX-IN-20 • They will be referred to as “inverter” hereinafter unless otherwise specified. T T a a r r g g e e t t G G r r o o u u p p...
  • Page 5 S S y y m m b b o o l l E E x x p p l l a a n n a a t t i i o o n n Indicates a situation that, if not avoided, could result in equipment or property damage.

  • Page 7: Table Of Contents

    C C o o n n t t e e n n t t s s 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 1.4 Skills of Qualified Personnel................
  • Page 8 4.4.1 Manual Transport ................18 4.4.2 Hoisting Transport ................19 4.5 Dimensions of mounting-bracket..............20 4.6 PV Bracket-Mounted Installation..............20 4.6.1 Preparation before Mounting ............20 4.6.2 Mounting Steps ................20 4.7 Wall-Mounted Installation ................22 4.7.1 Preparation before Mounting ............22 4.7.2 Mounting Steps ................
  • Page 9 6 Commissioning ................... 56 6.1 Inspection before Commissioning............... 56 6.2 Commissioning Procedure ................. 56 7 iSolarCloud App ..................57 7.1 Brief Introduction..................57 7.2 Download and Install .................. 57 7.3 Function Overview ..................58 7.4 Login......................58 7.4.1 Requirements ................... 58 7.4.2 Login Steps ..................

  • 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 utility grid, the inverter can be connected to the utility grid. 1.3 Inverter Danger to life from electric shocks due to live voltage Do not open the enclosure at any time.

  • Page 13: Skills Of Qualified Personnel

    User Manual 1 Safety Only qualified personnel can perform the country setting. Unauthorized alteration of the country setting may cause a breach of the • type-certificate marking. By touching the electronic components, you may damage the inverter. For inverter handling, be sure to: avoid any unnecessary touching;and, •...

  • Page 14: Product Introduction

    Product Introduction 2.1 Intended Usage SG250HX-IN-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. The intended usage of the inverter is illustrated in "Figure 2-1 Inverter application in PV...

  • Page 15: Product Introduction

    User Manual 2 Product Introduction Make sure the inverter is applied to an IT system before enabling the Anti-PID function. 2.2 Product Introduction 2.2.1 Model Description The device model description is as follows: N N o o m m i i n n a a l l O O u u t t p p u u t t N N o o m m i i n n a a l l G G r r i i d d V V o o l l t t a a g g e e M M o o d d e e l l P P o o w w e e r r...

  • Page 16: Appearance

    2 Product Introduction User Manual 2.2.2 Appearance *The image shown here is for reference only. The actual product you receive may differ. 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 17: Led Indicator Panel

    User Manual 2 Product Introduction 2.2.4 LED Indicator Panel As an HMI, the LED indicator panel on the front of the inverter can indicate the present working state of the inverter. Table 2-1 LED indicator description L L E E D D L L E E D D s s t t a a t t e e D D e e f f i i n n i i t t i i o o n n i i n n d d i i c c a a t t o o r r...

  • Page 18: Circuit Diagram

    2 Product Introduction User Manual 2.3 Circuit Diagram The MPPT is utilized for DC input to ensure the maximum power from the PV array at different PV input conditions. The inversion circuit converts the DC power into AC power and feeds the AC power into the utility grid through the AC terminal. The protection circuit is equipped to ensure the safe operation of the device and personal safety.
  • Page 19 User Manual 2 Product Introduction 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. If the voltage scheme for the PID protection/recovery function does not meet •...

  • Page 20: Unpacking And Storage

    Check the delivery scope for completeness according to the packing list. • Contact SUNGROW or the supplier in case there is any damage or incompleteness. Do not dispose of the original packing case. It is recommended to store the inverter in it.
  • Page 21 D D e e s s c c r r i i p p t t i i o o n n I I t t e e m m SUNGROW logo and product type Technical data of inverter Instructions and marks of conformity...

  • Page 22: Scope Of Delivery

    3 Unpacking and Storage User Manual 3.3 Scope of Delivery F F i i g g u u r r e e 3 3 - - 2 2 Scope of Delivery a. The mounting-bracket includes 2 mounting-bracket components and 1 connecting bar.
  • Page 23 User Manual 3 Unpacking and Storage Store the inverter in the original packing case with the desiccant inside. • The storage temperature must be always between -40° C and +70° C, and the • storage relative humidity must be always between 0 and 95 %, non-condensing. In case of stacking storage, the number of stacking layers should never exceed the •...

  • Page 24: Mechanical Mounting

    Mechanical Mounting 4.1 Safety during Mounting Make sure there is no electrical connection before installation. In order to avoid electric shock or other injury, be sure there is no electricity or plumbing installations before drilling holes. Risk of injury due to improper handling Always follow the instructions when moving and positioning the inverter.

  • Page 25: Carrier Requirements

    User Manual 4 Mechanical Mounting The ambient temperature and relative humidity must meet the following • requirements. Do not install the inverter outdoors in areas with salt damage, which mainly refer to • the areas within 500 m away from the coast. The deposition of salt fog varies largely with nearby seawater characteristics, sea wind, precipitation, relative humidity, terrain, and forest coverage.
  • Page 26 4 Mechanical Mounting User Manual * The distance can be shortened to 200mm according to onsite conditions. In case the distance is less than 800mm, move the inverter from the mounting-bracket or wall before maintaining fans. In case of multiple inverters, reserve specific clearance between the inverters. •...

  • Page 27: Installation Tools

    User Manual 4 Mechanical Mounting 4.3 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 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 / / T T y y p p e e N N o o .

  • Page 28: Moving The Inverter

    4 Mechanical Mounting User Manual 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 / / T T y y p p e e N N o o .

  • Page 29: Hoisting Transport

    User Manual 4 Mechanical Mounting 4.4.2 Hoisting Transport Step 1 Release the sealing screws on the mounting ears and store them properly. Anchor two M12 thread lifting rings to the hangers of the inverter. Step 2 Lead the sling through the two lifting rings and fasten the tie-down strap. Step 3 Hoist the inverter, and stop to check for safety when the inverter is 100mm above the ground.

  • Page 30: Dimensions Of Mounting-Bracket

    4 Mechanical Mounting User Manual 4.5 Dimensions of mounting-bracket Dimensions of the assembled mounting-bracket are as follows: F F i i g g u u r r e e 4 4 - - 1 1 Dimensions of mounting-bracket 4.6 PV Bracket-Mounted Installation 4.6.1 Preparation before Mounting T T o o o o l l s s 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...
  • Page 31 User Manual 4 Mechanical Mounting Step 2 Level the assembled mounting-bracket by using the level, and mark the positions for drilling holes on the PV bracket. Drill the holes by using a hammer drill. Step 3 Secure the mounting-bracket with bolts. Table 4-2 Fastening sequence C C o o m m p p o o n n e e n n t t s s D D e e s s c c r r i i p p t t i i o o n n...

  • Page 32: Wall-Mounted Installation

    4 Mechanical Mounting User Manual Step 7 Fix the inverter with two M6×65 screws. - - - - E E n n d d 4.7 Wall-Mounted Installation 4.7.1 Preparation before Mounting T T o o o o l l s s 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 I I t t e e m m Phillips screwdriver/ electric...

  • Page 33: Mounting Steps

    User Manual 4 Mechanical Mounting 4.7.2 Mounting Steps Step 1 Assemble the mounting-bracket by using the connecting bar. Step 2 Level the assembled mounting-bracket by using the level, and mark the positions for drilling holes on the installation site. Step 3 Insert the expansion bolts into the holes and secure them with a rubber hammer. Fasten the nut with a wrench to expand the bolt.
  • Page 34 4 Mechanical Mounting User Manual Table 4-3 Fastening sequence D D e e s s i i g g n n a a t t i i o o n n D D e e s s c c r r i i p p t t i i o o n n I I t t e e m m Wall Fastening the bolt in the sequence of nut, spring washer,...

  • Page 35: Electrical Connection

    Electrical Connection 5.1 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) during the electrical work. Danger to life due to a high voltage inside the inverter! The PV string will generate lethal high voltage when exposed to sunlight.
  • Page 36 5 Electrical Connection User Manual F F i i g g u u r r e e 5 5 - - 1 1 Wiring terminals * Figure shown here is for reference only. The actual product you receive may differ！ I I t t e e m m T T e e r r m m i i n n a a l l M M a a r r k k...

  • Page 37: Electrical Connection Overview

    User Manual 5 Electrical Connection 5.3 Electrical Connection Overview Electrical connection in the PV system includes additional grounding connection, AC connection, and PV string connection. D D e e s s i i g g n n a a t t i i o o n n I I t t e e m m PV string Inverter...
  • Page 38 Requirements". ** If case of four single-core cables, an spare AC sealing plate accessory is required. To purchase the AC sealing plate accessory, contact SUNGROW. Table 5-2 PE wire requirements P P E E w w i i r r e e c c r r o o s s s s...

  • Page 39: Additional Grounding Connection

    User Manual 5 Electrical Connection Table 5-3 Power cable for tracking system 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 C C a a b b l l e e R R e e c c o o m m m m e e n n d d e e d d T T y y p p e e C C a a b b l l e e...

  • Page 40: Opening The Wiring Compartment

    5 Electrical Connection User Manual 1:Heat shrink tubing 2：OT/DT terminal Step 2 Remove the screw on the grounding terminal and fasten the cable with a screwdriver. Step 3 Apply paint to the grounding terminal to ensure corrosion resistance. - - - - E E n n d d The grounding screws have been anchored to the side of the inverter before delivery, and do not need to be prepared.

  • Page 41: Ac Cable Connection

    User Manual 5 Electrical Connection Step 3 Keep the wiring compartment opened during wiring through the limit lever attached to the cover. - - - - E E n n d d Close the wiring compartment in reverse order after completing wiring operations.
  • Page 42 M M u u l l t t i i p p l l e e I I n n v v e e r r t t e e r r s s i i n n p p a a r r a a l l l l e e l l C C o o n n n n e e c c t t i i o o n n If multiple inverters are connected in parallel to the grid, ensure that the total number of parallel inverters does not exceed 30. Otherwise, please contact SUNGROW for technical scheme.

  • Page 43: Requirements For Ot/Dt Terminal

    User Manual 5 Electrical Connection The transformer is an important part of grid-connected PV generation system. The • fault tolerance capacity of the transformer should be taken into account at all times. The fault include: system short circuit, grounding fault, voltage drop, etc. Take ambient temperature, relative humidity, altitude, air quality, and other •...

  • Page 44: Aluminium Cable Requirements

    5 Electrical Connection User Manual 5.6.3 Aluminium Cable Requirements If an aluminium cable is selected, use a copper to aluminium adapter terminal to avoid direct contact between the copper bar and the aluminium cable. F F i i g g u u r r e e 5 5 - - 3 3 Aluminium cable terminal connection sequence Ensure that the selected terminal can directly contact with the copper bar.
  • Page 45 User Manual 5 Electrical Connection Step 4 Remove the protection cover and store the released screws properly. Step 5 Strip the protection layer and insulation layer by specific length, as described in the figure below. Step 6 If wiring of tracking system power cable is required, refer to"5.8 Wiring of Tracking System Power Cable (Optional)"...
  • Page 46 5 Electrical Connection User Manual Step 8 Secure the wires to corresponding terminals. Note the terminal positions of PE wire and N wire. If a phase wire is connected to the PE terminal or N terminal, unrecoverable damage may be caused to the inverter.

  • Page 47: Dc Cable Connection

    User Manual 5 Electrical Connection If the PE cable is an independent single-core cable, it is inserted into the cabinet through the standby grounding terminal. Step 10Install the protection cover - - - - E E n n d d 5.7 DC Cable Connection Electric shock! The PV array will generate lethal high voltage once exposed to sunlight.

  • Page 48: Pv Input Configuration

    5 Electrical Connection User Manual Make sure the PV array is well insulated to ground before connecting it to the inverter. There is a risk of inverter damage! The following requirements should be met. Failure to do so will void guarantee and warranty claims. Make sure the maximum voltage of each string is always less than 1500 V.

  • Page 49: Y Terminal Connection

    User Manual 5 Electrical Connection O O p p e e n n c c i i r r c c u u i i t t v v o o l l t t a a g g e e l l i i m m i i t t M M a a x x .
  • Page 50 DC side of the inverter, and the system wiring diagram is shown in the figure below. Sungrow can provide Bizlink's Y-branch connector. If necessary, please contact Sungrow to purchase. Customers can also purchase Y-branch connector of the same specification by themselves. The wiring instructions for Y-branch connector are as follows.

  • Page 51: Connection Procedure

    User Manual 5 Electrical Connection 5.7.3 Connection Procedure SUNGROW provides corresponding plug connectors in the scope of delivery for quick connection of PV inputs. DC cables should be connected to the inverter via PV connectors which are included in the scope of delivery.

  • Page 52: Installing The Pv Connectors

    5 Electrical Connection User Manual Step 3 Insert the crimped cables into the corresponding connectors until they snap into place. Gently pull the cable backward to ensure firm connection. Step 4 Tighten the cable gland and the insulator. T T i i g g h h t t e e n n i i n n g g t t o o r r q q u u e e ( ( N N ∙ ∙ m m ) ) C C r r o o s s s s - - s s e e c c t t i i o o n n a a l l a a r r e e a a ( ( m m m m Step 5 Check for polarity correctness.
  • Page 53 Arc or contactor over temperature may occur if the PV connectors are not firmly in place, and SUNGROW shall not be held liable for any damage caused. Step 4 Follow the foregoing steps to connect PV connectors of other PV strings.

  • Page 54: Wiring Of Tracking System Power Cable (Optional)

    5 Electrical Connection User Manual Observe the specifications of the cable manufacturer with regard to the permitted bending radius. Make sure that the bending radius of the cable is at least 20 mm. Do not bottom out the capnut. 5.8 Wiring of Tracking System Power Cable (Optional) Step 1 Lead the AC cable into the wiring compartment according to Step 1 to Step 4 described "5.6.4 Connection Procedure".
  • Page 55 User Manual 5 Electrical Connection Step 4 Strip the protection layer and insulation layer by specific length, as described in the figure below. Step 5 Install the OT terminal and press it tight. Step 6 Stack the OT terminals on the OT/DT terminal of the AC cables, and fix the cables to corresponding terminals.
  • Page 56 5 Electrical Connection User Manual Ensure that OT terminals of the power cable are installed on the OT/DT terminals of the AC cable. Otherwise, it will cause over heat or even burn. Step 7 Gently pull the cable backwards to ensure firm connection, and fasten the swivel nut clockwise.

  • Page 57: Rs485 Communication

    User Manual 5 Electrical Connection - - - - E E n n d d There are four communication terminals COM1, COM2,COM3 and COM4 on the bottom of the inverter. Select the communication terminal according to onsite conditions. Disconnector (≥800V) and fuse (16A, gM) should be installed between the inverter and the tracking system control cabinet.

  • Page 58: Rs485 Communication System

    5 Electrical Connection User Manual The port RS485_1 is used to connect Logger, so as to implement data exchange with PC or other monitoring devices. The port RS485_2 is used to connect communication device of the tracking system, so as to implement data exchange with the tracking system.
  • Page 59 User Manual 5 Electrical Connection M M u u l l t t i i - - i i n n v v e e r r t t e e r r c c o o m m m m u u n n i i c c a a t t i i o o n n s s y y s s t t e e m m In case of multiple inverters, all the inverters can be connected via RS485 cables in the daisy chain manner.

  • Page 60: Connection Procedure(Terminal Block)

    5 Electrical Connection User Manual F F i i g g u u r r e e 5 5 - - 5 5 Configuration of dip switch (N≥15) The length of the RS485 cable should be no longer than 1,200m. If multiple inverters are connected to the data collectorLogger3000, the number of permissible daisy chains and the number of devices allowed to be connected should meet the requirements (refer to the user manual for the...

  • Page 61: Plc Communication Connection

    Step 5 Pull the cable gently to make sure it is secured, tighten the swivel nut clockwise. - - - - E E n n d d 5.10 PLC Communication Connection With a PLC communication module built inside, the inverter can communicate with the PLC Module provided by SUNGROW.

  • Page 62: Dry Contact Connection

    In case of PLC communication, the AC cable must be a multi-core cable • rather than multiple single-core cables. The PLC Module is an optional device that can be ordered from Sungrow. • The PLC Module conducts data communication by directly using the AC •...
  • Page 63 User Manual 5 Electrical Connection Use LED indicators or other equipment to indicate whether the inverter is in the faulty state. The following figures show the typical applications of normal open contact and normal close contact: F F i i g g u u r r e e 5 5 - - 6 6 Normal open contact F F i i g g u u r r e e 5 5 - - 7 7 Normal close contact Devices connected to the relay should comply with related requirements: A A C C - - S S i i d d e e R R e e q q u u i i r r e e m m e e n n t t s s...

  • Page 64: Wiring Procedure

    5 Electrical Connection User Manual F F i i g g u u r r e e 5 5 - - 8 8 Local stop contact When wiring DI dry contacts, ensure that the maximum wiring distance meet the requirements in "10.2 Wring Distance of DI Dry Contact".
  • Page 65 User Manual 5 Electrical Connection - - - - E E n n d d...

  • Page 66: Commissioning

    Commissioning 6.1 Inspection before Commissioning Check the following items before starting the inverter: The inverter DC switch and external circuit breaker are disconnected. • The inverter should be accessible for operation, maintenance and service. • Nothing is left on the top of the inverter. •...

  • Page 67: Isolarcloud App

    iSolarCloud App 7.1 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.

  • Page 68: Function Overview

    7 iSolarCloud App User Manual 7.3 Function Overview The App provides parameter viewing and setting functions, as shown in the following "- Figure 7-1 App function tree map". F F i i g g u u r r e e 7 7 - - 1 1 App function tree map 7.4 Login 7.4.1 Requirements The following items should meet requirements:...
  • Page 69 To set inverter parameters related to grid protection and grid support, contact SUNGROW to obtain the advanced account and corresponding password. Step 4 If the inverter is not initialized, you will enter the quick setting screen of initialize protection parameter.

  • Page 70: Home Page

    7 iSolarCloud App User Manual F F i i g g u u r r e e 7 7 - - 4 4 Initialization protection parameter Reset the protection parameters if the country setting is incorrect. Otherwise, fault may occur. In the European region, such as Netherlands, Sweden, Denmark, whose grid code complies with EN50549, select the parameter EN50549_1 (LV grid- connection) or EN50549_2 (MV grid-connection).
  • Page 71 User Manual 7 iSolarCloud App F F i i g g u u r r e e 7 7 - - 5 5 Home page Table 7-1 Home page description D D e e s s i i g g n n a a t t i i o o n n 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 72: Running Information

    7 iSolarCloud App User Manual Table 7-2 Description of inverter state D D e e s s c c r r i i p p t t i i o o n n S S t t a a t t e e After being energized, inverter tracks the PV arrays’...
  • Page 73 User Manual 7 iSolarCloud App F F i i g g u u r r e e 7 7 - - 6 6 Running Information The run information includes the PV information, inverter information, input and output information. Table 7-4 Run information C C l l a a s s s s i i f f i i c c a a - - 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...

  • Page 74: History Record

    7 iSolarCloud App User Manual C C l l a a s s s s i i f f i i c c a a - - 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 t t i i o o n n Insulation resistance value of the input side to...

  • Page 75: Fault Alarm Records

    User Manual 7 iSolarCloud App F F i i g g u u r r e e 7 7 - - 7 7 History record On "history record" screen, users can check the alarm records, power yield records and event records. 7.7.1 Fault Alarm Records Tap "...

  • Page 76: Power Yields Records

    7 iSolarCloud App User Manual F F i i g g u u r r e e 7 7 - - 9 9 Detailed fault alarm info 7.7.2 Power Yields Records User can view various energy records: power curve, daily energy histogram, monthly energy histogram, and annual energy histogram.

  • Page 77: Event Records

    User Manual 7 iSolarCloud App F F i i g g u u r r e e 7 7 - - 1 1 0 0 Power Curve Tap the time bar on the top of the screen to select a time segment and view the corresponding power curve.

  • Page 78: Parameter Setting

    7 iSolarCloud App User Manual F F i i g g u u r r e e 7 7 - - 1 1 1 1 More 7.8.1 Parameter Setting Tap " " to enter the setting screen, as shown in the following Figure. F F i i g g u u r r e e 7 7 - - 1 1 2 2 Settings System Parameters •...
  • Page 79 User Manual 7 iSolarCloud App Tap" " to enter Operation Parameters screen, as shown in the following Figure. F F i i g g u u r r e e 7 7 - - 1 1 4 4 Operation Parameters Running Time •...
  • Page 80 7 iSolarCloud App User Manual Tap" " to enter AFCI Parameters screen, on which AFD self-test function and AFCI activation function can be enabled or disabled; and AFD alarm can be cleared, as shown in the following Figure. F F i i g g u u r r e e 7 7 - - 1 1 7 7 AFCI Parameters Power Regulation Parameters •...
  • Page 81 User Manual 7 iSolarCloud App D D e e f f i i n n i i t t i i o o n n / / S S e e t t t t i i n n g g 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 s s c c r r i i p p t t i i o o n n...
  • Page 82 7 iSolarCloud App User Manual D D e e f f i i n n i i t t i i o o n n / / S S e e t t t t i i n n g g 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 s s c c r r i i p p t t i i o o n n...
  • Page 83 User Manual 7 iSolarCloud App D D e e f f i i n n i i t t i i o o n n / / S S e e t t t t i i n n g g 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 s s c c r r i i p p t t i i o o n n...
  • Page 84 7 iSolarCloud App User Manual F F i i g g u u r r e e 7 7 - - 1 1 9 9 Q(U) Curve F F i i g g u u r r e e 7 7 - - 2 2 0 0 Q(P) Curve Communication Parameters •...
  • Page 85 User Manual 7 iSolarCloud App 7.8.2 To avoid download failure due to poor on-site network signal, it is recommended to download the firmware package to the mobile device in advance. Step 1 Enable the "Mobile data" of the mobile device. Step 2 Open the App, tap at the upper right corner and select F F i i r r m m w w a a r r e e D D o o w w n n l l o o a a d d .

  • Page 86: Password Changing

    7 iSolarCloud App User Manual F F i i g g u u r r e e 7 7 - - 2 2 4 4 Updating Firmware - - - - E E n n d d 7.8.3 Password Changing Tap "...

  • Page 87: System Decommissioning

    System Decommissioning 8.1 Disconnecting the Inverter 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. Lethal voltages or damage to the inverter will follow if otherwise. Step 1 Disconnect the external AC circuit breaker and secure it against reconnection.

  • Page 88: Disposal Of The Inverter

    8 System Decommissioning User Manual - - - - E E n n d d 8.3 Disposal of the Inverter Users take the responsibility for the disposal of the inverter. Some parts and devices of the inverter, such as the capacitors, may cause environmental pollution.

  • Page 89: 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. Grid transient Generally, the inverter will be reconnected overvoltage, to the grid after the grid returns to normal.
  • Page 90 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. Generally, the inverter will be reconnected to the grid after the grid returns to normal. If the fault occurs repeatedly: 1.
  • Page 91 SUNGROW. Wait for the inverter to return to normal. Disconnect the AC and DC switches, and Device anomaly reconnect the AC and DC switches 15 minutes later to restart the inverter. If the fault still exists, contact SUNGROW.
  • Page 92 AC and DC cables are well insulated. 3. If the fault is not caused by the foregoing reasons and still exists, contact SUNGROW. Generally, the inverter will be reconnected to the grid after the grid returns to normal. If...
  • Page 93 Wait for the inverter to return to normal. power is excessively large and out of the If the fault still exists, contact SUNGROW. normal operation range of the inverter. Generally, the inverter will be reconnected to the grid after the grid returns to normal. If the fault occurs repeatedly: 1.
  • Page 94 Device anomaly reconnect the AC and DC switches 15 minutes later to restart the inverter. If the fault still exists, contact SUNGROW. Wait for the inverter to return to normal. If the fault occurs repeatedly: 1. Check whether the ISO resistance...
  • Page 95 Disconnect the AC and DC switches, and Device anomaly reconnect the AC and DC switches 15 040-042 minutes later to restart the inverter. If the fault still exists, contact SUNGROW. Low ambient temperature, the ambient temperature is Stop and disconnect the inverter. Restart...
  • Page 96 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. *The code 078 to code 081 are corresponding to PV 1 to PV 4 respectively.
  • Page 97 Restart the inverter or clear the fault through Protection self-check the App. failure on grid side If the fault still exists, contact SUNGROW. 1. Check whether the AC cable is correctly connected. 2. Check whether the insulation between Grounding cable fault the ground cable and the live wire is normal.
  • Page 98 String x reverse 532-547 2. If the fault is not caused by the foregoing connection alarm reasons and still exists, contact SUNGROW. *The code 532 to code 547 are corresponding to string 1 to string 16 respectively. 1. Check whether the corresponding module is sheltered.

  • Page 99: Maintenance

    Restart the inverter only after removing the fault that impairs safety performance. As the inverter contains no component parts that can be maintained, never arbitrarily replace any internal components. For any maintenance need, please contact SUNGROW. Otherwise, SUNGROW shall not be held liable for any damage caused.

  • Page 100: Routine Maintenance

    9 Troubleshooting and Maintenance User Manual 9.2.1 Routine Maintenance I I t t e e m m M M e e t t h h o o d d P P e e r r i i o o d d Check the temperature and dust of the inverter.
  • Page 101 User Manual 9 Troubleshooting and Maintenance F F a a n n M M a a i i n n t t e e n n a a n n c c e e Stop the inverter and disconnect it from all power supplies before •...
  • Page 102 9 Troubleshooting and Maintenance User Manual Step 4 Pull out the fan module, clean the fans with soft brush or vacuum cleaner, and replace them when necessary. Step 5 Follow the steps above to remove the fan on the other side of the inverter. Step 6 Reinstall the fan back to the inverter in reverse order and restart the inverter.

  • Page 103: Appendix

    10 Appendix 10.1 Technical Data S S G G 2 2 5 5 0 0 H H X X - - I I N N - - 2 2 0 0 P P a a r r a a m m e e t t e e r r s s I I n n p p u u t t ( ( D D C C ) ) Max.
  • Page 104 10 Appendix User Manual S S G G 2 2 5 5 0 0 H H X X - - I I N N - - 2 2 0 0 P P a a r r a a m m e e t t e e r r s s Max.

  • Page 105: Wring Distance Of Di Dry Contact

    User Manual 10 Appendix 10.2 Wring Distance of DI Dry Contact The maximum wiring distance of DC dry contact must meet the requirements in the table below. The wiring distance L is the total length of all DI signal cables. refers to the cable length between the DI dry contact terminal of the k inverter and the corresponding terminal of the (k-1)

  • Page 106: Quality Assurance

    E E x x c c l l u u s s i i o o n n o o f f L L i i a a b b i i l l i i t t y y 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 107: Contact Information

    • For faulty products in any of above cases, if the customer requests maintenance, paid maintenance service may be provided based on the judgment of SUNGROW. 10.4 Contact Information Should you have any question about this product, please contact us.
  • Page 108 M M a a l l a a y y s s i i a a P P h h i i l l i i p p p p i i n n e e s s Sungrow SEA Sungrow Power Supply Co., Ltd Selangor Darul Ehsan Mandaluyong City...
  • Page 109 Sungrow Power Supply Co., Ltd. Add: No.1699 Xiyou Rd.,New & High Technology Industrial Development Zone, 230088,Hefei, P. R. China. Web: www.sungrowpower.com E-mail: info@sungrow.cn Tel: +86 551 6532 7834 / 6532 7845 Specifications are subject to changes without advance notice.

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