Sungrow SG110CX User Manual
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Sungrow SG110CX User Manual

Pv grid-connected inverter
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PV Grid-Connected Inverter
User Manual
SG110CX
WWW.SUNGROWPOWER.COM
SG110HX-UEN-Ver18-202106

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Summary of Contents for Sungrow SG110CX

  • Page 1 PV Grid-Connected Inverter User Manual SG110CX WWW.SUNGROWPOWER.COM SG110HX-UEN-Ver18-202106...

  • Page 3: All Rights Reserved

    No part of this document can be reproduced in any form or by any means without the prior written permission of Sungrow Power Supply Co., Ltd (hereinafter "SUNGROW"). T T r r a a d d e e m m a a r r k k s s and other Sungrow trademarks used in this manual are owned by SUNGROW.

  • 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 models: SG110CX • 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 Indicates a hazard with a low level of risk that, if not avoided, could result in mi- nor or moderate injury. Indicates a situation that, if not avoided, could result in equipment or property damage. Indicates additional information, emphasized contents or tips that may be helpful, e.g.

  • 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 2 Product Description ..................
  • Page 8 4.6 Installing the Inverter .................. 21 5 Electrical Connection ................23 5.1 Safety Instructions..................23 5.2 Terminal Description................... 23 5.3 Electrical Connection Overview ..............25 5.4 Crimp OT/DT terminal................. 27 5.5 Additional Grounding Connection ............... 28 5.5.1 Additional Grounding Requirements..........28 5.5.2 Connection Procedure ..............
  • Page 9 6.1 Inspection before Commissioning............... 57 6.2 Commissioning Procedure ................. 57 7 iSolarCloud App ..................58 7.1 Brief Introduction..................58 7.2 Installing the App..................58 7.3 Function Overview ..................59 7.4 Login......................59 7.4.1 Requirements ................... 59 7.4.2 Login Procedure ................59 7.5 Home page ....................

  • Page 11: Safety

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

  • Page 12: Inverter

    1 Safety User Manual All electrical connections must be in accordance with local and national standards. Only with the permission of the local utility grid company, the inverter can be 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 User Manual 1 Safety Only qualified personnel can perform the country setting. Unauthorized altera- tion may cause a breach of the type-certificate marking. Risk of inverter damage due to electrostatic discharge (ESD)! By touching the electronic components, you may damage the inverter. For in- verter handling, be sure to: avoid any unnecessary touching;...

  • Page 14: Product Description

    N N o o t t e e Monocrystalline silicon, polycrystalline silicon and thin-film PV strings without grounding. Inverter SG110CX Grid connection Includes devices such as AC circuit breaker, SPD, metering cabinet device. Boost the low voltage from the inverter to grid-compatible Transformer medium voltage.

  • Page 15: Product Introduction

    User Manual 2 Product Description 2.2 Product Introduction M M o o d d e e l l D D e e s s c c r r i i p p t t i i o o n n The model description is as follows : A A p p p p e e a a r r a a n n c c e e The following figure shows the dimensions of the inverter.
  • Page 16 2 Product Description User Manual f f i i g g u u r r e e 2 2 - - 2 2 Inverter Appearance * The image shown here is for reference only. The actual product received 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: Symbols On The Product

    User Manual 2 Product Description f f i i g g u u r r e e 2 2 - - 3 3 Dimensions of the Inverter(in mm) 2.3 Symbols on the Product 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 Do not dispose of the inverter together with household waste.

  • Page 18: Dc Switch

    2.5 DC Switch The DC switch is used to disconnect the DC current safely whenever necessary. The SG110CX is equipped with three DC switches, and each DC switch controls its cor- responding DC terminals. Turn the DC switches to the ON position before restarting the inverter.

  • Page 19: Function Description

    User Manual 2 Product Description f f i i g g u u r r e e 2 2 - - 4 4 Circuit Diagram The MPPT is utilized for DC input to ensure the maximum power from the PV array at •...
  • Page 20 2 Product Description User Manual For positive voltage scheme, after the PID is enabled, the voltage to ground of all PV • strings is greater than 0, and therefore the PV string-to-ground voltage is a positive value. For negative voltage scheme, after the PID is enabled, the voltage to ground of all PV •...

  • Page 21: Unpacking And Storage

    Check the inner contents for damage after unpacking. • Contact SUNGROW or the transport company in case of any damage or incomplete- ness, and provide photos to facilitate services. Do not dispose of the original packing case. It is recommended to store the device in the original packing case when the device is decommissioned.

  • Page 22: Mechanical Mounting

    Mechanical Mounting Respect all local standards and requirements during mechanical installation. 4.1 Safety during Mounting Make sure there is no electrical connection before installation. In order to avoid electric shock or other injury, make sure that holes will not be drilled over any electricity or plumbing installations.

  • Page 23: Environment Requirements

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

  • Page 24: Clearance Requirements

    4 Mechanical Mounting User Manual In case the installation site is a level surface, mount the inverter to the horizon- tal-mounting bracket to meet the mounting angle requirements, as shown in the figure below. Take the following items into account when designing the bracket scheme: Consider onsite climate conditions and take anti-snow and anti-rain meas- •...

  • Page 25: Installation Tools

    User Manual 4 Mechanical Mounting * In case the distance is less than 800 mm, move the inverter from the mounting-brack- et or wall before maintaining fans. In case of multiple inverters, reserve specific clearance between the inverters. For other installation scenarios, please refer to the relevant technical documents on http://support.
  • Page 26 4 Mechanical Mounting User Manual table 4-1 Tool specification Earplugs Dust mask Protective gloves Goggles Insulated shoes Utility knife Slotted screwdriver Phillips screwdriver (M4, M6, M8) (M2, M6) Hammer drill Pliers Marker Level (φ12, φ14) Rubber mallet Wrench Wrist strap Socket wrench set (16mm) (13 mm, 16 mm)

  • Page 27: Moving The Inverter

    User Manual 4 Mechanical Mounting MC4 terminal MC4 terminal Multimeter RJ45 crimping tool crimping pliers wrench ≥ 1100 Vdc 4–6mm Vacuum cleaner 4.4 Moving the Inverter Before installation, remove the inverter from the packing case and move it to the installa- tion site.

  • Page 28: Hoisting Transport

    4 Mechanical Mounting User Manual The ground surface on which the inverter is to be placed should be covered with a sponge pad, foam cushion or the like to prevent the inverter bottom from scratches. - - - - E E n n d d 4.4.2 Hoisting Transport step 1 Release the sealing screws on the mounting ears and store them properly.

  • Page 29: Installing The Mounting-Bracket

    User Manual 4 Mechanical Mounting Keep the inverter balanced throughout the hoisting process and avoid collisions with walls or other objects. Stop hoisting in the event of severe weather, such as heavy rain, thick fog, or strong wind. The lifting rings and the sling are not within the delivery scope. - - - - E E n n d d 4.5 Installing the mounting-bracket Inverter is installed on the wall and bracket by means of mounting bracket.

  • Page 30: Wall-Mounted Installation

    4 Mechanical Mounting User Manual step 3 Secure the mounting-bracket with bolts. 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 N N o o .

  • Page 31: Installing The Inverter

    User Manual 4 Mechanical Mounting step 4 Fix the mounting-bracket with the expansion bolts. 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 N N o o .
  • Page 32 4 Mechanical Mounting User Manual - - - - E E n n d d...

  • Page 33: Electrical Connection

    Electrical Connection 5.1 Safety Instructions Prior to any electrical connections, keep in mind that the inverter has dual power sup- plies. 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 34 5 Electrical Connection User Manual f f i i g g u u r r e e 5 5 - - 1 1 Terminal Description(For a multi-core cable) f f i i g g u u r r e e 5 5 - - 2 2 Terminal Description(For four single-core cables) * The image shown here is for reference only.

  • Page 35: Electrical Connection Overview

    User Manual 5 Electrical Connection 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 N N o o t t e e PV terminals + / - MC4 PV connector...
  • Page 36 (2) In the case of four single-core cables, a spare AC sealing plate accessory is required as shown in the following figure. To purchase the AC sealing plate accessory, contact SUNGROW. f f i i g g u u r r e e 5 5 - - 3 3 Spare AC Sealing Plate Inverter for Australia and New Zealand are equipped with the four-core sealing plate by default.

  • Page 37: Crimp Ot/Dt Terminal

    User Manual 5 Electrical Connection table 5-2 PE Wire Requirements P P E E W W i i r r e e P P E E W W i i r r e e C C r r o o s s s s C C r r o o s s s s N N o o t t e e S S e e c c t t i i o o n n S S...

  • Page 38: Additional Grounding Connection

    The ground connection of this additional grounding terminal cannot replace • the connection of the PE terminal of the AC cable. Make sure those terminals are both grounded reliably. SUNGROW shall not be held liable for any dam- age caused by the violation. 5.5.1 Additional Grounding Requirements All non-current carrying metal parts and device enclosures in the PV power system should be grounded, for example, mounts of PV modules and the inverter enclosure.

  • Page 39: Connection Procedure

    User Manual 5 Electrical Connection 5.5.2 Connection Procedure step 1 Prepare the cable and OT/DT terminal,refer to " Crimp 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. The grounding screws have been anchored to the side of the inverter before delivery, and do not need to be prepared.

  • Page 40: Ac Cable Connection

    5 Electrical Connection User Manual step 3 Keep the wiring compartment open 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 41 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 25. Otherwise, please contact SUNGROW for techni- cal scheme.

  • Page 42: Requirements For Ot/Dt Terminal

    • er. The maximum AC current of all inverters connected in parallel must be taken into account. If more than 25 inverters are connected to the grid, contact SUNGROW. The transformer must be protected against overloading and short circuit. •...
  • Page 43 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 fig- ure below. step 6 Make the cable and crimp OT/DT terminal. step 7 Secure the wires to corresponding terminals.
  • Page 44 5 Electrical Connection User Manual Ensure that the depth L of the socket used is not less than 28mm. step 8 Gently pull the cable backwards to ensure firm connection, and fasten the swivel nut clockwise.

  • Page 45: Connection Procedure(L1/L2/L3/N, For Four Single-Core Cables)

    User Manual 5 Electrical Connection If the PE cable is an independent single-core cable, it should be inserted into the cabinet through the standby grounding terminal. step 9 Install the protection cover - - - - E E n n d d 5.7.4 Connection Procedure(L1/L2/L3/N, For four single-core cables) step 1 Open the wiring compartment.
  • Page 46 5 Electrical Connection User Manual 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 fig- ure below. step 6 Make the cable and crimp OT/DT terminal. step 7 Secure the wires to corresponding terminals.
  • Page 47 User Manual 5 Electrical Connection Ensure that the depth L of the socket used is not less than 28mm. step 8 Gently pull the cable backwards to ensure firm connection, and fasten the swivel nut clockwise. step 9 Install the protection cover...

  • Page 48: Connection Procedure(L1/L2/L3/Pe, For Four Single-Core Cables)

    5 Electrical Connection User Manual - - - - E E n n d d 5.7.5 Connection Procedure(L1/L2/L3/PE, For four single-core cables) step 1 Open the wiring compartment. For details, refer to"5.6 Opening the Wiring Compartment". step 2 Disconnect the AC-side circuit breaker and prevent it from inadvertent reconnection. step 3 Loosen the swivel nut of the AC waterproof connector and select a seal according to the cable outer diameter, remove the inner sealing ring if the cable diameter is larger than 22 mm .
  • Page 49 User Manual 5 Electrical Connection step 5 Strip the protection layer and insulation layer by specific length, as described in the fig- ure below. step 6 Make the cable and crimp OT/DT terminal. step 7 Secure the wires to corresponding terminals.
  • Page 50 5 Electrical Connection User Manual Ensure that the depth L of the socket used is not less than 28mm. step 8 Gently pull the cable backwards to ensure firm connection, and fasten the swivel nut clockwise. step 9 Install the protection cover - - - - E E n n d d...

  • Page 51: Dc Cable Connection

    User Manual 5 Electrical Connection 5.8 DC Cable Connection Danger of electric shock! The PV array will generate lethal high voltage once exposed to sunlight. Make sure the PV array is well insulated to ground before connecting it to the inverter.

  • Page 52: Assembling The Pv Connectors

    • Use MC4-Evo2 DC terminals if the maximum input voltage is greater than • 1,000 V. To purchase the MC4-Evo2 DC terminals, contact SUNGROW. Select appropriate DC terminals as required above. Otherwise, SUNGROW • shall be held no liability for the damage caused.
  • Page 53 User Manual 5 Electrical Connection SUNGROW provides corresponding PV connectors in the scope of delivery for quick connection of PV inputs. To ensure IP66 protection, use only the sup- plied connector or the connector with the same ingress of protection.

  • Page 54: Installing The Pv Connector

    Arc or contactor over-temperature may occur if the PV connectors are not • firmly connected in place, and SUNGROW shall not be held liable for any damage caused due to this operation. step 4 Follow the foregoing steps to connect PV connectors of other PV strings.

  • Page 55: Rs485 Connection

    User Manual 5 Electrical Connection If the DC input is connected inversely and the DC switch has been rotated to "ON", do not operate immediately. Otherwise, the equipment may be damaged. Please turn the DC switch to "OFF" and remove the DC connector to adjust the polarity of the strings when the string current is lower than 0.5A.

  • Page 56: Rs485 Communication System

    5 Electrical Connection User Manual table 5-4 RS485_1 port terminal definition (RJ45) N N o o D D e e f f i i n n i i t t i i o o n n PIN1~2 RS485 B, RS485B differential signal- PIN3 PIN4~5 RS485 A, RS485A differential signal+...
  • Page 57 User Manual 5 Electrical Connection f f i i g g u u r r e e 5 5 - - 5 5 Multi-inverter Communication System【RS485_1 Interface（Terminal Block）】 f f i i g g u u r r e e 5 5 - - 6 6 Multi-inverter Communication System【RS485_1 Interface（RJ45）】 When more than 15 inverters are connected to the same daisy chain, in order to ensure the communication quality, the Logger at the first end of the daisy chain needs to be equipped with a terminal resistor of 120Ω, the inverter at the last end needs to be...

  • Page 58: Connection Procedure(Terminal Block)

    5 Electrical Connection User Manual f f i i g g u u r r e e 5 5 - - 7 7 Configuration of Dip Switch (N≥15) The length of the RS485 cable and twisted pair cable should be no longer than 1,200m.

  • Page 59: Connection Procedure (Rj45 Ethernet Port)

    User Manual 5 Electrical Connection O O u u t t e e r r D D i i a a m m e e t t e e r r D D ( ( m m m m ) ) S S e e a a l l 4.5 ~ 6 6 ~ 12...
  • Page 60 5 Electrical Connection User Manual O O u u t t e e r r D D i i a a m m e e t t e e r r D D ( ( m m m m ) ) S S e e a a l l 4.5 ~ 6 6 ~ 12...

  • Page 61: Dry Contact Connection

    User Manual 5 Electrical Connection - - - - E E n n d d 5.10 Dry Contact Connection Dry contact cables require a cross section of 1 mm to 1.5 mm The connection procedure of the dry contact is the same as that of the RS485 terminal block.
  • Page 62 5 Electrical Connection User Manual f f i i g g u u r r e e 5 5 - - 8 8 Normal open contact f f i i g g u u r r e e 5 5 - - 9 9 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 D D 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 63: Wiring Procedure

    User Manual 5 Electrical Connection f f i i g g u u r r e e 5 5 - - 1 1 0 0 Local stop contact f f i i g g u u r r e e 5 5 - - 1 1 1 1 Daisy chain topology When wiring DI dry contacts, ensure that the maximum wiring distance meet the re- quirements in "10.2 Wring Distance of DI Dry...

  • Page 64: Connection Procedure

    Asserted when the impedance between pins 5 and 6 is detected to be above 20kΩ Enable the DRM function through the iSolarCloud APP. If there are any prob- lems, contact SUNGROW. The DRM function is only applicable to devices for Australia and New Zealand. 5.11.2 Connection Procedure step 1 Strip the insulation layer of the Ethernet cable with a wire stripper, and insert the signal wires to the RJ45 connector.

  • Page 65: Closing The Wiring Compartment

    User Manual 5 Electrical Connection step 3 Insert the RJ45 connector to the RJ45 jack. step 4 Pull the cable gently to make sure it is secured, tighten the swivel nut clockwise. - - - - E E n n d d 5.12 Closing the Wiring Compartment step 1 Release the limit lever.

  • Page 66: Communication Module Connection (Optional)

    User Manual 5.13 Communication Module Connection (optional) Connect the communication module produced by SUNGROW to the communication accessory port. After successful connection, information such as power generation and running state of the inverter can be viewed via the APP on the phone.

  • Page 67: Commissioning

    Commissioning 6.1 Inspection before Commissioning Check the following items before starting the inverter: All equipment has been reliably installed. • DC and AC switches are in the "OFF" position. • The ground cable is properly and reliably connected. • The AC cable is properly and reliably connected. •...

  • Page 68: 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 69: Function Overview

    User Manual 7 iSolarCloud App 7.3 Function Overview The App provides parameter viewing and setting functions, as shown in the following figure. 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 requirements should be met:...
  • Page 70 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 initializing protec- tion parameter.

  • Page 71: Home Page

    User Manual 7 iSolarCloud App 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, a fault may occur. In the European region, such as Sweden, Ireland, Hungary, Portugal, Romania, Greece, Ukraine etc.
  • Page 72 7 iSolarCloud App User Manual 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 73 User Manual 7 iSolarCloud App 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, the inverter tracks the PV arrays’...

  • Page 74: Run Information

    7 iSolarCloud App User Manual 7.6 Run Information Tap R R u u n n I I n n f f o o r r m m a a t t i i o o n n on the navigation bar to enter the screen showing running infor- mation, slide the screen upwards to view all detailed information.

  • Page 75: Records

    User Manual 7 iSolarCloud App 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 A-B Line Voltage...
  • Page 76 7 iSolarCloud App User Manual f f i i g g u u r r e e 7 7 - - 8 8 Detailed Fault Alarm Information Y Y i i e e l l d d R R e e c c o o r r d d Tap Y Y i i e e l l d d R R e e c c o o r r d d to enter the screen showing daily power generation , as shown in the following figure.

  • Page 77: More

    User Manual 7 iSolarCloud App 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 Monthly energy Shows the power output every month in a year.

  • Page 78: Operation Parameters

    7 iSolarCloud App User Manual f f i i g g u u r r e e 7 7 - - 1 1 1 1 System Parameters B B o o o o t t / / S S h h u u t t d d o o w w n n Tap B B o o o o t t / / S S h h u u t t d d o o w w n n to send the boot/shutdown instruction to the inverter.
  • Page 79 User Manual 7 iSolarCloud App f f i i g g u u r r e e 7 7 - - 1 1 3 3 PID Setting table 7-6 PID Parameter Description 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 enabling/disabling of the PID night recovery function.

  • Page 80: Power Regulation Parameters

    7 iSolarCloud App User Manual f f i i g g u u r r e e 7 7 - - 1 1 5 5 NS Protection(Passive Valid) 7.8.3 Power Regulation Parameters A A c c t t i i v v e e P P o o w w e e r r R R e e g g u u l l a a t t i i o o n n Tap S S e e t t t t i i n n g g s s →...
  • 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 f f i i g g u u r r e e 7 7 - - 1 1 7 7 Reactive Power Regulation table 7-8 Reactive Power Regulation 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 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 85: Communication Parameters

    User Manual 7 iSolarCloud App f f i i g g u u r r e e 7 7 - - 1 1 8 8 Q(U) Curve f f i i g g u u r r e e 7 7 - - 1 1 9 9 Q(P) Curve 7.8.4 Communication Parameters Tap S S e e t t t t i i n n g g s s →...

  • Page 86: Password Changing

    7 iSolarCloud App User Manual step 4 Select the device model before downloading the firmware. Tap the device name in the device list to enter the firmware upgrade package detail interface, and tap behind the firmware upgrade package to download it. step 5 Return to the 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 screen, tap in the upper right corner of the screen to view the downloaded firmware upgrade package.
  • Page 87 User Manual 7 iSolarCloud App f f i i g g u u r r e e 7 7 - - 2 2 1 1 Change Password The password shall consisit of 8–20 digits, including letters and numbers.

  • Page 88: 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 89: Disposal Of The Inverter

    User Manual 8 System Decommissioning step 1 Refer to "5 Electrical Connection" for the inverter disconnection of all cables in reverse steps. step 2 Dismantle the inverter referring to "4 Mechanical Mounting" in reverse steps. step 3 If necessary, remove the wall-mounting bracket from the wall. step 4 If the inverter will be reinstalled in the future, please refer to "3.2 Inverter Storage"...

  • Page 90: Troubleshooting And Maintenance

    Troubleshooting and Maintenance 9.1 Troubleshooting Once the inverter fails, the fault information can be displayed on the App interface. If the inverter is equipped with an LCD screen, the fault information can be viewed on it. The fault codes and troubleshooting methods of all PV inverters are detailed in the table below.
  • Page 91 App or the LCD. Modify the overvoltage protection values with the consent of the local electric power operator. 3. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 92 Grid Underfrequency 2. Check whether the protection parameters are appropriately set via the App or the LCD. 3. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 93 Grid Abnormal for solutions if the grid parameter exceeds the set range. 2. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 94 3. Check if the DC fuse is damaged. If so, PV Abnormal Alarm 580-595 replace the fuse. 4. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists. *The code 548 to code 563 are correspond- ing to string 1 to string 16 respectively.
  • Page 95 Resistance sulation layer. 3. If the cable is normal and the fault occurs on rainy days, check it again when the weather turns fine. 4. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists.
  • Page 96 2. Check whether the insulation between Grounding Cable Fault the ground cable and the live wire is normal. 3. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists. 1. Disconnect the DC power supply, and...
  • Page 97 1. Check whether the output port is con- nected to actual grid. Disconnect it from the grid if so. Grid Confrontation 2. Contact Sungrow Customer Service if the preceding causes are ruled out and the fault persists. 1. Check whether the communication cable and the terminals are abnormal.
  • Page 98 231, 432– mental abnormalities, and take correspond- 434, 500– ing corrective measures when necessary. 513, 515– If the fault persists, please contact Sungrow 518, 900, Power Customer Service. 901, 910, 1. Check whether the corresponding string is of reverse polarity. If so, disconnect the DC switch and adjust the polarity when the string current drops below 0.5 A.

  • Page 99: Maintenance

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

  • Page 100: Routine Maintenance

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

  • Page 101: Cleaning Air Inlet And Outlet

    User Manual 9 Troubleshooting and 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 whether the cable entry is in- sufficiently sealed or the gap is ex- Cable entry Once a year...
  • Page 102 9 Troubleshooting and Maintenance User Manual step 3 Press the tab of the latch hook, unplug the cable connection joint outwards, and loosen the screw on the fan holder. step 4 Pull out the fan module, clean the fans with soft brush or vacuum cleaner, and replace them when necessary.
  • Page 103 User Manual 9 Troubleshooting and Maintenance step 5 Reinstall the fan back to the inverter in reverse order and restart the inverter. - - - - E E n n d d...

  • Page 104: Appendix

    10 Appendix 10.1 Technical Data S S G G 1 1 1 1 0 0 C C X X 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 105: Wring Distance Of Di Dry Contact

    User Manual 10 Appendix S S G G 1 1 1 1 0 0 C C X X P P a a r r a a m m e e t t e e r r s s DC switch AC switch PV string monitoring Q at night...
  • Page 106 10 Appendix User Manual refers to the cable length in one direction between the DI dry contact terminal of the inverter and the corresponding terminal of the (k-1) inverter. table 10-1 Correspondence between number of inverters and maximum wiring distance M M a a x x i i m m u u m m w w i i r r i i n n g g d d i i s s t t a a n n c c e e ( ( u u n n i i t t : : m m ) ) N N u u m m b b e e r r o o f f i i n n v v e e r r t t e e r r...

  • Page 107: 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 108 A A u u s s t t r r a a l l i i a a C C h h i i n n a a ( ( H H Q Q ) ) Sungrow Power Supply Co., Ltd Sungrow Australia Group Pty. Ltd.
  • Page 109 User Manual 10 Appendix T T h h a a i i l l a a n n d d S S p p a a i i n n Sungrow Thailand Co., Ltd. Sungrow Ibérica S.A.U. Bangkok Mutilva +66 891246053 +34 948 05 22 04 service@th.sungrowpower.com...

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