Sungrow SG125CX-P2PV User Manual
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Sungrow SG125CX-P2PV User Manual

Pv grid-connected inverter
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User Manual
PV Grid-Connected Inverter
SG125CX-P2
SG125CX-P2PV
Grid-Connected InverterUser
ManualSG125CX-P2-UEN-Ver12-
202205
SG125CX-P2-UEN-Ver12-202205

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Summary of Contents for Sungrow SG125CX-P2PV

  • Page 1 User Manual PV Grid-Connected Inverter SG125CX-P2 SG125CX-P2PV Grid-Connected InverterUser ManualSG125CX-P2-UEN-Ver12- 202205 SG125CX-P2-UEN-Ver12-202205...

  • Page 3: All Rights Reserved

    Software Licenses • It is prohibited to use data contained in firmware or software developed by SUNGROW, in part or in full, for commercial purposes by any means. • It is prohibited to perform reverse engineering, cracking, or any other operations that...

  • Page 4: About This Manual

    Please read this manual carefully before using the product and keep it properly at a place for easy access. All contents, pictures, marks, and symbols in this manual are owned by SUNGROW. No part of this document may be reprinted by the non-internal staff of SUNGROW without written authorization.
  • Page 5 Indicates high-risk potential hazards that, if not avoided, may lead to death or seri- ous injury. Indicates moderate-risk potential hazards that, if not avoided, may lead to death or serious injury. Indicates low-risk potential hazards that, if not avoided, may lead to minor or mod- erate injury.

  • Page 7: Table Of Contents

    Contents All Rights Reserved .....................I About This Manual......................II 1 Safety Instructions ....................1 1.1 Unpacking and Inspection ................1 1.2 Installation Safety ...................1 1.3 Electrical Connection Safety................2 1.4 Operation Safety ....................3 1.5 Maintenance Safety ..................4 1.6 Disposal Safety ....................4 2 Product Description ..................5 2.1 System Introduction ..................5 2.2 Product Introduction..................6...
  • Page 8 4.5.3 Pole-Mounting ..................25 4.6 Installing the Inverter..................27 5 Electrical Connection ..................29 5.1 Safety Instructions ..................29 5.2 Terminal Description ..................30 5.3 Electrical Connection Overview ..............32 5.4 Crimp OT / DT terminal .................34 5.5 External Grounding Connection ..............35 5.5.1 External Grounding Requirements............36 5.5.2 Connection Procedure.................36 5.6 AC Cable Connection ...................37 5.6.1 AC Side Requirements ................37...
  • Page 9 6 Commissioning ....................71 6.1 Inspection before Commissioning ..............71 6.2 Commissioning Procedure ................71 7 iSolarCloud App ....................73 7.1 Brief Introduction ..................73 7.2 Installing the App ..................73 7.3 Login ......................74 7.3.1 Requirements ..................74 7.3.2 Login Procedure .................74 7.4 Function Overview..................78 7.5 Home page ....................78 7.6 Run Information....................81 7.7 Records .......................81 7.8 More......................84...

  • Page 11: Safety Instructions

    Perform operations considering ac- tual onsite conditions. • SUNGROW shall not be held liable for any damage caused by violation of gen- eral safety operation requirements, general safety standards, or any safety in- struction in this manual.

  • Page 12: Electrical Connection Safety

    1 Safety Instructions User Manual Improper installation may cause personal injury! • If the product supports hoisting transport and is hoisted by hoisting tools, no one is allowed to stay under the product. • When moving the product, be aware of the product weight and keep the balance to prevent it from tilting or falling.

  • Page 13: Operation Safety

    User Manual 1 Safety Instructions Damage to the product caused by incorrect wiring is not covered by the warranty. • Electrical connection must be performed by professionals. • All cables used in the PV generation system must be firmly attached, properly insulated, and adequately dimensioned.

  • Page 14: Maintenance Safety

    To avoid the risk of electric shock, do not perform any other maintenance opera- tions beyond this manual. If necessary, contact SUNGROW for maintenance. Oth- erwise, the losses caused is not covered by the warranty. Disposal Safety Please scrap the inverter in accordance with relevant local regulations and stand- ards to avoid property losses or casualties.

  • Page 15: Product Description

    Product Description System Introduction The inverter is a transformerless 3-phase PV grid-connected inverter. As an integral compo- nent 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 to feed the AC current into the utility grid.

  • Page 16: Product Introduction

    2 Product Description User Manual Make sure the inverter is applied to an IT system before enabling the PID recovery function. Product Introduction Model Description The model description is as follows :...
  • Page 17 User Manual 2 Product Description Appearance figure 2-2 Inverter Appearance * The image shown here is for reference only. The actual product received may differ. Description Name LED indicator HMI interface to indicate the present working state of the panel inverter.

  • Page 18: Symbols On The Product

    2 Product Description User Manual figure 2-3 Dimensions of the Inverter(in mm) Weight Model Weight SG125CX-P2 87 kg Symbols on the Product Symbol Explanation Do not dispose of the inverter together with household waste. TÜV mark of conformity. CE mark of conformity. EU/EEA Importer.

  • Page 19: Led Indicator

    User Manual 2 Product Description Symbol Explanation Danger to life due to high voltages! Do not touch live parts for 5 minutes after disconnection from the power sources. Only qualified personnel can open and maintain the inverter. Additional grounding point. Read the user manual before maintenance! * The table shown here is for reference only.

  • Page 20: Circuit Diagram

    2 Product Description User Manual Voltage may still be present in AC side circuits after the indicator is off. Pay atten- tion to the electricity safety during operating. Circuit Diagram The following figure shows the main circuit of the inverter. figure 2-4 Circuit Diagram •...
  • Page 21 • The communication accessory port is used to connect communication module manufac- tured by SUNGROW, and upload monitoring data by means of wireless communication. The inverter can be connected to communication devices via either of the two interfaces. When communication is established between the inverter and the communication devices, users can view inverter information or set inverter parameters, such as running parameter and protection parameter, through the iSolarCloud.
  • Page 22 2 Product Description User Manual • 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 the corresponding user manual. •...

  • Page 23: Unpacking And Storage

    • Check the inner contents for damage after unpacking. Contact SUNGROW or the transport company in case of any damage or incompleteness, and provide photos to facilitate services. Do not dispose of the original packing case. It is recommended to store the device in the original packing case when the product is decommissioned.
  • Page 24 3 Unpacking and Storage User Manual • Do not place the inverter in places with items that may affect or damage the inverter. • Store the inverter in a clean and dry place to prevent dust and water vapor from eroding. •...

  • Page 25: Mechanical Mounting

    Mechanical Mounting Respect all local standards and requirements during mechanical installation. Safety during Mounting Make sure there is no electrical connection before installation. Before drilling, avoid the water and electricity wiring in the wall. Poor installation environment will affect system performance! •...

  • Page 26: Environment Requirements

    The ambient temperature and relative humidity must meet the following requirements. • Please consult SUNGROW before installing inverters outdoors in salt stress areas. Salt stress areas mainly refer to coastal areas that are within 500 meters from the coast. The deposition of salt fog varies largely with nearby seawater characteristics, sea wind, pre- cipitation, relative humidity, terrain, and forest coverage.

  • Page 27: Angle Requirements

    Install the inverter vertically or at the maximum allowable rear tilt angle. Do not install the in- verter horizontally, forward, excessively backward, sideways, or upside down. Please consult SUNGROW before tilting backwards the inverter and install it in floating power plants.

  • Page 28: Clearance Requirements

    4 Mechanical Mounting User Manual • Bind the cables at the positions 300~350mm away from the DC connector and communi- cation waterproof terminal. • The various waterproof terminals should be tightened in accordance with the torque re- quirements in this manual to ensure that they are tight and sealed. Contact SUNGORW if you have any question.

  • Page 29: Installation Tools

    User Manual 4 Mechanical Mounting Installation Tools Installation tools include but are not limited to the following recommended ones. If necessary, use other auxiliary tools on site. table 4-1 Tool specification Goggles Earplugs Dust mask Protective gloves Insulated shoes Utility knife Slotted screwdriver Phillips screwdriver (M2, M3, M6)

  • Page 30: Moving The Inverter

    4 Mechanical Mounting User Manual Rubber mallet Socket wrench set Wrench Wrist strap (16 mm, 33 mm) (M4, M8, M12) Wire cutter Wire stripper Hydraulic plier Heat gun EVO2 terminal EVO2 terminal Multimeter RJ45 crimping tool crimping pliers wrench ≥ 1100 Vdc 4–6mm Vacuum cleaner Hexagon socket...

  • Page 31: Installing The Mounting-Bracket

    User Manual 4 Mechanical Mounting Improper handling may cause personal injury! • Arrange an appropriate number of personnel to carry the inverter according to its weight, and installation personnel should wear protective equipment such as anti-impact shoes and gloves. • Attention must be paid to the center of gravity of the inverter to avoid tilting dur- ing handling.

  • Page 32: Pv Bracket-Mounted Installation

    4 Mechanical Mounting User Manual figure 4-1 Dimensions of mounting-bracket 4.5.1 PV Bracket-Mounted Installation Tools Item Specification Phillips screwdriver / electric screw driver Marker Level Electric drill Drill bit: φ12 Wrench Opening: 16 mm Spare parts Item Quantity Specification Source Grub screw M4×10 Delivery scope...

  • Page 33: Wall-Mounted Installation

    User Manual 4 Mechanical Mounting step 3 Secure the mounting-bracket with bolts. (A) Mounting-bracket (B) Full threaded bolt (C) Metal bracket (D) Flat washer (E) Spring washer (F) Hex nuts - - End 4.5.2 Wall-Mounted Installation Tools Item Specification Phillips screwdriver / electric screw driver Marker Level...
  • Page 34 4 Mechanical Mounting User Manual Item Quantity Specification Source Grub screw M4×10 Delivery scope Bolt assembly M10×95 Self-prepared (Recommended) 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.

  • Page 35: Pole-Mounting

    User Manual 4 Mechanical Mounting (A) Wall (B) Expansion bolt (C) Mounting-bracket - - End 4.5.3 Pole-Mounting Tools Item Specification Phillips screwdriver / electric screw driver — Marker — Level Electric drill * Drill bit: φ12 wrench Opening: 16 mm * Confirm the need for other sizes of tools based on the bolts of the matching clamps.
  • Page 36 4 Mechanical Mounting User Manual step 3 Mark and punch holes in the U-beam according to the dimensions shown below. step 4 Use bolts and clamps to fix the U-beam to the column.

  • Page 37: Installing The Inverter

    User Manual 4 Mechanical Mounting step 5 Use bolts to secure the pegboard to the U-beam. - - End Installing the Inverter Tools Item Specification Phillips screwdriver / electric screw driver Spare parts Quantity Specification Item Source Delivery scope Grub screw M6×65 step 1 Take out the inverter from the packing case.
  • Page 38 4 Mechanical Mounting User Manual step 3 Fix the inverter with screws. It is necessary to fix the left and right sides of the inverter with screws. Otherwise, the inverter may be unstable. - - End...

  • Page 39: Electrical Connection

    Electrical Connection Safety Instructions The PV string will generate lethal high voltage when exposed to sunlight. • Operators must wear proper personal protective equipment during electrical connections. • Must ensure that cables are voltage-free with a measuring instrument before touching DC cables. •...

  • Page 40: Terminal Description

    5 Electrical Connection User Manual • All vacant terminals must be covered with waterproof covers to prevent affect- ing the protection rating. • When the wiring is completed, seal the gap of cable inlet and outlet holes with fireproof / waterproof materials such as fireproof mud to prevent foreign matter or moisture from entering and affecting the long-term normal operation of the inverter.
  • Page 41 User Manual 5 Electrical Connection figure 5-1 Terminal Description(For a multi-core cable) figure 5-2 Terminal Description(For four single-core cables) * The image shown here is for reference only. The actual product received may differ. Item Terminal Mark Note PV terminals + / - PV connector Used to switch on and off the DC input.

  • Page 42: Electrical Connection Overview

    5 Electrical Connection User Manual Item Terminal Mark Note RS485 communication, digital input/output DI/ Communica- COM1,COM2 DO, etc. tion terminal Additional use at least one of them to ground the inverter. grounding terminal *If the PE cable is an independent single-core cable, it should be inserted into the AC junc- tion box through the standby grounding terminal.
  • Page 43 (1) A copper to aluminum adapter terminal is required when an aluminum cable is used. For details, refer to " Aluminium Cable Requirements". (2) In the case of five 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.

  • Page 44: Crimp Ot / Dt Terminal

    5 Electrical Connection User Manual figure 5-3 Spare AC Sealing Plate Inverter for Australia and New Zealand are equipped with the five-core sealing plate by default. table 5-2 PE Wire Requirements PE Wire Cross Note Section The specifications are valid only when the phase wire and PE wire use the same material.

  • Page 45: External Grounding Connection

    User Manual 5 Electrical Connection 1. Heat shrink tubing 2. OT DT terminal 3. Hydraulic pliers 4. Heat gun 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. figure 5-4 Aluminium cable terminal connection sequence 1.

  • Page 46: External Grounding Requirements

    AC side grounding terminal are reliably grounded. The grounding connection can be made by other means if they are in accordance with the local standards and regulations, and SUNGROW shall not be held liable for the possible consequences. 5.5.1 External Grounding Requirements All non-current carrying metal parts and device enclosures in the PV power system should be grounded, for example, brackets of PV modules and inverter enclosure.

  • Page 47: Ac Cable Connection

    User Manual 5 Electrical Connection The grounding screws have been anchored to the side of the inverter before deliv- ery, and do not need to be prepared. There are two grounding terminals. Use one of them to ground the inverter. - - End AC Cable Connection 5.6.1 AC Side Requirements...
  • Page 48 The apparent power of the inverter should never exceed the power of the transformer. The maximum AC current of all inverters connected in parallel must be taken into ac- count. If more than 25 inverters are connected to the grid, contact SUNGROW. •...

  • Page 49: Requirements For Ot/Dt Terminal

    User Manual 5 Electrical Connection – The LV side winding of the transformer, AC cables, and secondary devices (including protective relay, detection and measurement instruments, and related auxiliary devi- ces) must withstand the voltage to ground of at least 906 V. 5.6.2 Requirements for OT/DT Terminal OT/DT terminals (not included in the delivery scope) are required for fixing AC cables to the terminal block.
  • Page 50 5 Electrical Connection User Manual The screws on the front cover are captive screws. When the front cover is opened, the screws remain on it. step 3 Loosen screws on the bottom sealing plate using the supplied hexagon socket wrench, and remove the sealing plate.
  • Page 51 User Manual 5 Electrical Connection step 5 Lead the cable with the protective layer stripped through the sealing ring and secure screws on the bottom sealing plate. step 6 Open the protective cover.
  • Page 52 5 Electrical Connection User Manual step 7 Connect cables with crimped OT/DT terminals to corresponding terminals and secure them. 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. Ensure that the depth L of the socket used is not less than 28mm.
  • Page 53 User Manual 5 Electrical Connection step 9 Remove the limit rod and put it back. Close the junction box and tighten the two screws on the front cover using the supplied hexagon socket wrench. - - End *If the PE cable is an independent single-core cable, it is inserted into the cabinet through the standby grounding terminal.

  • Page 54: Connection Procedure (For A Single-Core Cable)

    5 Electrical Connection User Manual 5.6.4 Connection Procedure (For a single-core cable) step 1 Disconnect the AC-side circuit breaker and prevent it from inadvertent reconnection. step 2 Loosen two screws on the front cover of the junction box using the supplied hexagon socket wrench, and open the junction box.
  • Page 55 User Manual 5 Electrical Connection The screws on the sealing plate are captive screws. When the sealing plate is re- moved, the screws remain on it. step 4 Cut off the excess part of sealing ring according to cable diameter. step 5 Lead the cable through the sealing ring and secure the screws on the bottom sealing plate.
  • Page 56 5 Electrical Connection User Manual step 6 Open the protective cover. step 7 Connect cables with crimped OT/DT terminals to corresponding terminals and secure them. 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 57 User Manual 5 Electrical Connection Ensure that the depth L of the socket used is not less than 28 mm. step 8 Close the protective cover. step 9 Remove the limit rod and put it back. Close the junction box and tighten the two screws on the front cover using the supplied hexagon socket wrench.

  • Page 58: Dc Cable Connection

    5 Electrical Connection User Manual - - End DC Cable Connection The PV string will generate lethal high voltage when exposed to sunlight. • Respect all safety instructions listed in relevant documents about PV strings.

  • Page 59: Pv Input Configuration

    The damage caused by this is not covered by the warranty. • Electric 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. •...

  • Page 60: Assembling The Pv Connectors

    • Do not connect the AC circuit breaker before finishing 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 supplied connector or the connector with the same ingress of protection.
  • Page 61 User Manual 5 Electrical Connection 1: Positive crimp contact 2：Negative crimp contact step 3 Lead the cable through cable gland, and insert the crimp contact into the insulator until it snaps into place. Gently pull the cable backward to ensure firm connection. step 4 Tighten the cable gland and the insulator.

  • Page 62: Installing The Pv Connector

    5 Electrical Connection User Manual 5.7.3 Installing the PV Connector step 1 Ensure that the DC switch is in "OFF" position. Otherwise, manually turn it to "OFF". step 2 Check the cable connection of the PV string for polarity correctness and ensure that the open circuit voltage in any case does not exceed the inverter input limit of 1,100 V.
  • Page 63 User Manual 5 Electrical Connection step 3 Lead the cable through the seal ring. The length of unstripped cable in the AC junction box is 50mm. step 4 Place the OT terminals of power cable for tracking system on the OT/DT terminals of the AC cable, and secure them.

  • Page 64: Wireless Communication Module Connection(Optional)

    5 Electrical Connection User Manual The power cables for tracking system can be connected to any two phases among L1, L2, and L3. step 5 Close the protective cover. Close the junction box and tighten the two screws on the front cover using the supplied hexagon socket wrench.

  • Page 65: Winet-S Connection (Optional)

    User Manual 5 Electrical Connection Once the communication module is in use, do not connect the inverter to a 3rd party data logger at the same time via RS485. For details on module installation and configuration, refer to the manual delivered together with the module.
  • Page 66 5 Electrical Connection User Manual step 3 Unscrew the housing from the communication module. step 4 Thread the network cable through the swivel nut and gasket. Afterwards, route the cable into the opening of the sealing. Finally, insert the cable through the housing. step 5 Insert the RJ45 plug into the front plug connector until there is an audible click and tighten the housing.

  • Page 67: Wlan Communication

    User Manual 5 Electrical Connection step 6 Remove the waterproof lid from the COM1 terminal and install WiNet-S. step 7 Slightly shake it by hand to determine whether it is installed firmly. - - End 5.10.2 WLAN Communication step 1 Remove the waterproof lid from the COM1 terminal. step 2 Install the module.

  • Page 68: Communication Wiring Board

    5 Electrical Connection User Manual Install the Communication Junction Box Put the junction box back and ensure a firm connection. 5.12 Communication Wiring Board The inverter communication board consists of two layers, RS485 communication interface on the upper layer, and DI/DO interface on the lower layer.

  • Page 69: Rs485 Connection

    User Manual 5 Electrical Connection table 5-3 Port description Description Silk Screen RS485_3 Used to connect the external meter Used to connect the external COM100E to realize data interaction with host computer or other moni- toring devices RS485_1 Used for multiple inverters in the daisy chain to communicate RSD STOP Reserved...

  • Page 70: Rs485 Communication System

    5 Electrical Connection User Manual table 5-5 RS485_1 interface (RJ45）description Description PIN 1 ~ 2 RS485B differential signal- PIN 3 PIN 4 ~ 5 RS485A differential signal+ PIN 6 PIN 7 ~ 8 table 5-6 RS485_3 terminal description Description RS485A differential signal+ RS485B differential signal- RJ45 and terminal block are two types of RS485_1 interface with same functions and different wiring methods.

  • Page 71: Connection Procedure(Terminal Block)

    User Manual 5 Electrical Connection figure 5-6 Multi-inverter Communication System 【RS485_1 interface (terminal block)】 figure 5-7 Multi-inverter Communication System 【RS485_1 interface (RJ45)】 The length of an RS485 cable cannot exceed 1200m. If multiple inverters communicate via the smart communication box, the number of permissible daisy chains and the number of devices allowed to be connected should meet the requirements (refer to the user manual of the smart communica- tion box).
  • Page 72 5 Electrical Connection User Manual step 2 Unscrew the swivel nut of the junction box and select the sealing ring according to the cable diameter. step 3 Strip off the protective layer and insulation layer of proper length. step 4 Lead the cable through the swivel nut, the sealing ring and the junction box in sequence. Outer Diameter D(mm) Sealing Rings 4.5 ~ 6...

  • Page 73: Connection Procedure (Rj45 Interface)

    User Manual 5 Electrical Connection step 7 If other cables should be connected to the communication circuit board, skip the subsequent steps and continue wiring. Otherwise, perform as follows. step 8 Install the communication junction box, referring to" Install the Communication Junction Box"。...

  • Page 74: Dry Contact Connection

    5 Electrical Connection User Manual Pins 1 and 2 supply power to the SUNGROW communication module. Do not con- nect or use these two pins when making an RS485 communication cable. Other- wise, the inverter or other devices connected through the communication cable may be damaged.
  • Page 75 User Manual 5 Electrical Connection DO terminal (fault output dry contact) The relay can be set to output fault alarms, and user can configure it to be a normally open contact (COM＆NO) or a normally closed contact (COM＆NC). The relay is initially at the NC terminal, and it will trip to another contact when a fault occurs. When alarm occurs, signal status change will not be triggered.
  • Page 76 5 Electrical Connection User Manual AC-Side Requirements DC-Side Requirements Max. voltage: 230 Vac Max. voltage: 24 Vdc Max. current: 3 A Max. current: 3 A DI terminal (emergency stop dry contact) The dry contact can be configured to be an emergency stop contact. When the DI contact and PGND contact are shorted by external controlled switch (The ex- ternal switch can be configured as normally open contact or normally closed contact), the in- verter will immediately shutdown.

  • Page 77: Wiring Procedure

    User Manual 5 Electrical Connection figure 5-10 Local stop contact figure 5-11 Daisy chain topology When wiring DI dry contacts, ensure that the maximum wiring distance meet the require- ments in "10.2 Wring Distance of DI Dry Contact". 5.14.2 Wiring Procedure Connection method of the dry contacts is similar to that of the RS485 terminal block.

  • Page 78: Connection Procedure

    Asserted when the impedance between pins 5 and 6 is detected to be above 20 kΩ Enable the DRM function through the iSolarCloud App. If there are any problems, contact SUNGROW. The DRM function is only applicable to devices for Australia and New Zealand. 5.15.2 Connection Procedure step 1 Remove the communication junction box, referring to"...
  • Page 79 User Manual 5 Electrical Connection Outer Diameter D(mm) Sealing Rings 4.5 ~ 6 6 ~ 12 a + b 12 ~ 18 step 3 Strip the insulation layer of the Ethernet cable with a wire stripper, and insert the signal wires to the RJ45 connector.
  • Page 80 5 Electrical Connection User Manual - - End...

  • Page 81: Commissioning

    Commissioning Inspection before Commissioning Check the following items before starting the inverter: • All equipment has been reliably installed. • DC switch(es) and AC circuit breaker are in the "OFF" position. • The ground cable is properly and reliably connected. •...
  • Page 82 6 Commissioning User Manual step 5 The home page is automatically displayed when the initialization is completed. The indicator is steady blue, and the inverter is in grid-connected operation. - - End...

  • Page 83: Isolarcloud App

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

  • Page 84: Login

    7 iSolarCloud App User Manual Login 7.3.1 Requirements The following requirements should be met: • The AC or DC side of the inverter is powered-on. • The mobile phone is within 5 meters away from the inverter and there are no obstructions in between.
  • Page 85 User Manual 7 iSolarCloud App figure 7-1 Bluetooth Connection step 3 Enter the identity verification screen after the Bluetooth connection is established.
  • Page 86 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 protection parameter.
  • Page 87 User Manual 7 iSolarCloud App figure 7-4 Initialization Power Company The image shown here is for reference only. Refer to the actual interface for the supported network service providers. table 7-1 Power Company Information Grid Type Network Service Provider AS/NZS 4777.2:2015 AS/NZS 4777.2:2020 Australia A AS/NZS 4777.2:2020 Australia B AS/NZS 4777.2:2020 Australia C...

  • Page 88: Function Overview

    7 iSolarCloud App User Manual Grid Type Network Service Provider SA Power Networks • TS129-2019: < 10 kW for single-phase & 30 kW for three-phase • TS130-2017: > 30 kW & ≤ 200 kW • TS131-2018: > 200 kW Horizon Power •...
  • Page 89 User Manual 7 iSolarCloud App figure 7-6 Home Page table 7-2 Home Page Description Designation Description System date and time of the inverter. Date and time Present operation state of the inverter. For details, refer to Inverter state "table 7-3 Description of Inverter State".
  • Page 90 7 iSolarCloud App User Manual table 7-3 Description of Inverter State Description State After being energized, the inverter tracks the PV arrays’ maximum power point (MPP) and converts the DC power into AC power. This is the nor- mal operation mode. Stop The inverter is stopped.

  • Page 91: Run Information

    User Manual 7 iSolarCloud App Run Information Tap Run Information on the navigation bar to enter the screen showing running information, slide the screen upwards to view all detailed information. The run information includes the PV information, inverter information, input information, and output information.
  • Page 92 7 iSolarCloud App User Manual figure 7-8 Fault Alarm Record Click to select a time segment and view corresponding records. The inverter can record up to 400 latest entries. Select one of the records in the list and click the record, to view the detailed fault info as shown in following figure.
  • Page 93 User Manual 7 iSolarCloud App figure 7-10 Power Curve The App displays power generation records in a variety of forms, including daily power gen- eration graph, monthly power generation histogram, annual power generation histogram and total power generation histogram. table 7-5 Explanation of Power Yields Records Description Parameter Shows the power output from 5 am to 11 pm in a single day.

  • Page 94: More

    7 iSolarCloud App User Manual More Tap More on the navigation bar to enter the corresponding screen, as shown in the following figure. figure 7-11 More 7.8.1 System Parameters Tap Settings→System Parameters to enter the corresponding screen, as shown in the fol- lowing figure.
  • Page 95 User Manual 7 iSolarCloud App figure 7-13 Running Time PID Parameters Tap Settings→Operation Parameters→PID Parameters to enter the corresponding screen, on which you can set "PID Parameters". figure 7-14 PID Setting table 7-6 PID Parameter Description Description Parameter Set enabling/disabling of the PID night recovery function. PID night PID Recovery recovery function operates between 22:00 pm and 5:00 am by default.

  • Page 96: Power Regulation Parameters

    7 iSolarCloud App User Manual figure 7-15 AFCI Setting NS Protection (Passive Valid) Tap Settings→Operation Parameters→Regular Parameters to enter the corresponding screen, on which you can set the NS Protection(Passive Valid). figure 7-16 NS Protection(Passive Valid) 7.8.3 Power Regulation Parameters Active Power Regulation Tap Settings→Power Regulation Parameters→Active Power Regulation to enter the screen, as shown in the following figure.
  • Page 97 User Manual 7 iSolarCloud App figure 7-17 Active Power Regulation table 7-7 Active Power Regulation Definition/Setting Range Parameter Description The switch for enabling/dis- Active power soft start abling the soft start function Enable/Disable after fault after a fault occurs. Time that the soft start takes to Active power soft start raise the power from 0 to 1s~1200s...
  • Page 98 7 iSolarCloud App User Manual Definition/Setting Range Parameter Description Switch for enabling/disabling Active power setting the function of saving output Enable/Disable persistence limited power. The switch for limiting output Active power limit Enable/Disable power. The ratio of limiting output Active power limit ratio power to rated power in 0%~110% percentage.
  • Page 99 User Manual 7 iSolarCloud App figure 7-18 Reactive Power Regulation table 7-8 Reactive Power Regulation Definition/Setting Range Parameter Description Reactive power gener- Switch for enabling/disabling Enable/Disable ation at night Q at night function. Reactive power ratio Reactive power ratio set for -100%~0%/ at night the Q at night function.
  • Page 100 7 iSolarCloud App User Manual Descriptions Mode The reactive power can be regulated by the parameter Q-Var limits (in %). Q(P) The PF changes with the output power of the inverter. Q(U) The reactive power changes with the grid voltage. “Off”...
  • Page 101 User Manual 7 iSolarCloud App Explanation Range Parameter Voltage percentage for Q(P) function 100% ~ 110% EnterVoltage activation Voltage percentage for Q(P) function QP_ExitVoltage 90% ~ 100% deactivation Power percentage for Q(P) function QP_ExitPower 1% ~ 100% deactivation Unconditional activation/deactivation of Q QP_EnableMode Yes / No (P) function...

  • Page 102: Communication Parameters

    7 iSolarCloud App User Manual Explanation Range Parameter Value of Q/Sn at P3 on the Q(U) mode QU_Q3 -60% ~ 60% curve Grid voltage limit at P4 on the Q(U) mode QU_V4 100% ~ 120% curve Value of Q/Sn at P4 on the Q(U) mode QU_Q4 0 ~ 60% curve...

  • Page 103: Password Changing

    User Manual 7 iSolarCloud App step 2 Open the App, enter the account and password on the login screen. Tap Login to enter the home screen. step 3 Tap More→Firmware Download to enter corresponding screen on which you can view the device list.
  • Page 104 7 iSolarCloud App User Manual figure 7-22 Change Password The password shall consisit of 8–20 digits, including letters and numbers.

  • Page 105: System Decommissioning

    System Decommissioning Disconnecting the Inverter Danger of burns! Even if the inverter is shut down, it may still be hot and cause burns. Wear protec- tive gloves before operating the inverter after it cools down. For maintenance or other service work, the inverter must be switched off. Proceed as follows to disconnect the inverter from the AC and DC power sources.

  • Page 106: Disposal Of The Inverter

    8 System Decommissioning User Manual step 2 Refer to"4 Mechanical Mounting", to dismantle the inverter in reverse steps. step 3 If necessary, remove the wall-mounting bracket from the wall. "3.2 Inverter Storage" step 4 If the inverter will be used again in the future, please refer to for a proper conservation.

  • Page 107: Troubleshooting And Maintenance

    App or the LCD. Modify the overvoltage protection values with the con- sent of the local electric power operator. 3. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the fault persists. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 108 2. Check whether the protection parameters are appropriately set via the App or the LCD. 3. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the fault persists. Generally, the inverter will be reconnected to the grid after the grid returns to normal.
  • Page 109 App or the LCD. 3. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the fault persists. 1. Check whether the corresponding string is of reverse polarity.
  • Page 110 3. Check if the DC fuse is damaged. If so, replace Alarm the fuse. 4. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the alarm persists. *The code 548 to code 563 are corresponding to string 1 to string 16 respectively.
  • Page 111 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 pre- ceding causes are ruled out and the fault persists. 1. Check whether the AC cable is correctly connected.
  • Page 112 2. Reconnect the communication cable of the cation Abnormal meter. Alarm 3. Contact Sungrow Customer Service if the pre- ceding causes are ruled out and the alarm persists. 1. Check whether the output port is connected to actual grid. Disconnect it from the grid if so.
  • Page 113 0.5 A. MPPT Reverse 264-283 2. Contact Sungrow Customer Service if the pre- Connection ceding causes are ruled out and the fault persists. *The code 264 to code 279 are corresponding to string 1 to string 20 respectively.
  • Page 114 3. Do not reinsert the faulty strings before the grounding fault is cleared; 4. If the fault is not caused by the foregoing rea- sons and still exists, contact Sungrow Customer Service. 1. It is prohibited to disconnect the DC switch when the DC current is greater than 0.5 A when...

  • Page 115: Maintenance

    To avoid the risk of electric shock, do not perform any other maintenance opera- tions beyond this manual. If necessary, contact SUNGROW for maintenance. Oth- erwise, the losses caused is not covered by the warranty.

  • Page 116: Routine Maintenance

    9 Troubleshooting and Maintenance User Manual 9.2.2 Routine Maintenance Item Method Period Check the temperature and dust of the inverter. Clean the inverter enclo- Six months to a year (de- sure if necessary. System clean pend on the dust contents Check if the air inlet and outlet are in air.) normal.
  • Page 117 User Manual 9 Troubleshooting and Maintenance Fans inside the inverter are used to cool the inverter during operation. If the fans do not op- erate normally, the inverter may not be cooled down and inverter efficiency may decrease. Therefore, it is necessary to clean dirty fans and replace the broken fans in a timely manner. The operation procedure is as follows: step 1 Stop the inverter (see"8.1 Disconnecting the...
  • Page 118 9 Troubleshooting and Maintenance User Manual step 5 Pull out the fans. Clean them with a soft brush or vacuum cleaner, and replace them when necessary. - - End...

  • Page 119: Appendix

    10 Appendix 10.1 Technical Data SG125CX-P2 Parameters Input (DC) Recommended max. PV input 175 kW power Max. PV input voltage 1100 V Min. operating PV voltage / 180 V / 200 V Start-up input voltage Rated PV input voltage 600 V MPP voltage range 180 ~ 1000 V No.

  • Page 120: Wring Distance Of Di Dry Contact

    10 Appendix User Manual SG125CX-P2 Parameters DC reverse polarity protection AC short circuit protection Leakage current protection Grid monitoring Ground fault monitoring DC switch PV string monitoring Q at night function PID recovery function Arc fault circuit interrupter (AFCI) DC Type I+II / AC Type II Surge protection General Data Dimensions (W*H*D)
  • Page 121 User Manual 10 Appendix refers to the cable length in one direction between the DI dry contact terminal of the k verter and the corresponding terminal of the (k-1) inverter. table 10-1 Correspondence between number of inverters and maximum wiring distance Maximum wiring distance(unit:m) Number of inverter...

  • Page 122: Quality Assurance

    • The customer shall give SUNGROW a reasonable period to repair the faulty device. Exclusion of Liability In the following circumstances, SUNGROW has the right to refuse to honor the quality guarantee: • The free warranty period for the whole machine/components has expired.
  • Page 123 User Manual 10 Appendix We need the following information to provide you the best assistance: • Model of the device • Serial number of the device • Fault code/name • Brief description of the problem For detailed contact information, please visit: https://en.sungrowpower.com/contactUS.
  • Page 124 Sungrow Power Supply Co., Ltd. www.sungrowpower.com...

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