Sungrow SG30CX-NI User Manual
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Sungrow SG30CX-NI User Manual

Pv grid-connected inverter
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User Manual
PV Grid-Connected Inverter
SG30CX / SG33CX / SG40CX / SG50CX / SG30CX-NI /
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SG33CX / SG40CX / SG50CX /
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ManualSG30_33_40_50CX/SG30_
50CX-NI-UEN-Ver21-202211
SG30_33_40_50CX/SG30_50CX-NI-UEN-Ver21-202211

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Summary of Contents for Sungrow SG30CX-NI

  • Page 1 User Manual PV Grid-Connected Inverter SG30CX / SG33CX / SG40CX / SG50CX / SG30CX-NI / SG50CX-NI SG30CX / SG33CX / SG40CX / SG50CX / SG30CX-NI / SG50CX-NIPV Grid- Connected InverterUser ManualSG30_33_40_50CX/SG30_ 50CX-NI-UEN-Ver21-202211 SG30_33_40_50CX/SG30_50CX-NI-UEN-Ver21-202211...

  • 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...
  • Page 5 Contents of this manual may be periodically updated or revised, and the actual product pur- chased shall prevail. Users can obtain the latest manual from support.sungrowpower.com or sales channels. Symbols This manual contains important safety instructions, which are highlighted with the following symbols, to ensure personal and property safety during usage, or to help optimize the prod- uct performance in an efficient way.

  • 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 ...................2 1.3 Electrical Connection Safety................2 1.4 Operation Safety ....................4 1.5 Maintenance Safety ..................4 1.6 Disposal Safety ....................5 2 Product Description ..................6 2.1 System Introduction ..................6 2.2 Product Introduction..................7...
  • Page 8 4.5 Installing Mounting-bracket................24 4.5.1 PV Bracket-Mounted Installation ............24 4.5.2 Wall-Mounted Installation..............25 4.6 Installing the Inverter..................26 5 Electrical Connection ..................28 5.1 Safety Instructions ..................28 5.2 Terminal Description ..................29 5.3 Electrical Connection Overview ..............30 5.4 Crimp OT/DT terminal ...................32 5.5 External Protective Grounding Connection .............33 5.5.1 External Protective Grounding Requirements ........33 5.5.2 Connection Procedure.................33 5.6 AC Cable Connection ...................34...
  • Page 9 6.2 Commissioning Procedure ................56 7 iSolarCloud App ....................57 7.1 Brief Introduction ..................57 7.2 Installing App ....................57 7.3 Function Overview..................58 7.4 Login ......................58 7.4.1 Requirements ..................58 7.4.2 Login Procedure .................58 7.5 Home ......................62 7.6 Run Information....................64 7.7 Records .......................66 7.8 More......................68 7.8.1 System Parameters................68 7.8.2 Operation Parameters .................69 7.8.3 Power Regulation Parameters..............71...

  • 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: Installation Safety

    1 Safety Instructions User Manual Installation Safety Make sure there is no electrical connection before installation. Before drilling, avoid the water and electricity wiring in the wall. 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.
  • Page 13 User Manual 1 Safety Instructions Danger to life due to a high voltage inside the inverter! • Be sure to use special insulation tools during cable connections. • Note and observe the warning labels on the product, and perform operations strictly following the safety instructions.

  • Page 14: Operation Safety

    1 Safety Instructions User Manual Operation Safety Please comply with the following requirements when the product is running: • Do not touch its enclosure. • It is strictly forbidden to plug and unplug any connector on the inverter. • Do not touch any wiring terminal of the inverter. Otherwise, electric shock may occur.

  • Page 15: Disposal Safety

    To avoid the risk of electric shock, do not perform any other maintenance opera- tions beyond those described in this manual. If necessary, contact your distributor first. If the problem persists, contact SUNGROW. Otherwise, the losses caused is not covered by the warranty.

  • Page 16: Product Description

    The inverter applies only to the scenarios described in this manual. Description Item Note Monocrystalline silicon, polycrystalline silicon and thin-film PV strings without grounding. SG30CX, SG33CX, SG40CX, SG50CX, SG30CX-NI, Inverter SG50CX-NI. Grid connection Includes devices such as AC circuit breaker, SPD, metering cabinet device.

  • Page 17: Product Introduction

    User Manual 2 Product Description Product Introduction Model Description The model description is as follows(Take SG30CX as an example) : Appearance The following figure shows the appearance of the inverter. The image shown here is for reference only. The actual product received may differ.
  • Page 18 2 Product Description User Manual figure 2-2 Inverter Appearance Description Name To indicate the current working state of the inverter. LED indicator Mounting lugs To hang the inverter onto the mounting-bracket. To move the inverter. Side handles Warning symbols, nameplate, and QR code. Labels External protective Use to ground the inverter.

  • Page 19: Symbols On Product

    User Manual 2 Product Description Type Dimensions (W*H*D) Weight SG30CX 50 kg SG30CX-NI 702×595×310 mm SG33CX 58 kg SG40CX 62 kg SG50CX 782×645×310 mm 62 kg SG50CX-NI Symbols on Product Symbol Explanation Do not dispose of the inverter together with household waste.

  • Page 20: Dc Switch

    DC Switch The DC switch is used to disconnect the DC current safely whenever necessary. The SG30CX-NI and SG50CX-NI is not equipped with DC switch. The SG30CX and SG33CX is equipped with one DC switch to control the connection and disconnection of all DC terminals.

  • Page 21: Circuit Diagram

    User Manual 2 Product Description * The image shown here is for reference only. The actual product received may differ. Turn the DC switches to the ON position before restarting the inverter. Circuit Diagram The following figure shows the main circuit of the inverter. figure 2-4 Circuit Diagram •...

  • Page 22: Function Description

    After communication connection is established, users can view inverter information or set in- verter parameters through the iSolarCloud. It is recommended to use the communication module from SUNGROW. Using a device from other companies may lead to communication failure or other unex- pected damage.
  • Page 23 User Manual 2 Product Description • For negative voltage scheme, after the PID is enabled, the voltage to ground of all PV strings is lower than 0, and therefore the PV string-to-ground voltage is a negative value. • Before enabling the PID recovery function, make sure the voltage polarity of the PV modules to ground meets requirement.

  • Page 24: 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 25 User Manual 3 Unpacking and Storage • Do not store the inverter in places susceptible to direct sunlight, rain, and strong electric field. • Do not place the inverter in places with items that may affect or damage the inverter. •...

  • Page 26: 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 27: 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 not be accessible to children. • The ambient temperature and relative humidity must meet the following requirements. •...

  • Page 28: Angle Requirements

    4 Mechanical Mounting User Manual 4.2.3 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. Inverters in floating plants cannot be installed at a back tilt. In case the installation site is a level surface, mount the inverter to the bracket to meet the mounting angle requirements, as shown in the figure below.

  • Page 29: Clearance Requirements

    User Manual 4 Mechanical Mounting 4.2.4 Clearance Requirements Reserve enough clearance around the inverter to ensure sufficient space for heat dissipation. * In case this distance is less than the distance in the diagram, move the inverter from the mounting-bracket or wall before maintaining fans. The distance between the bottom of the inverter and the ground surface is deter- mined according to the bending radius of the AC cable used and the installation environment.

  • Page 30: Installation Tools

    4 Mechanical Mounting User Manual In case of multiple inverters, reserve specific clearance between the inverters. For other in- stallation scenarios, please refer to the relevant technical documents on http://support.sun- growpower.com/. In case of back-to-back installation, reserve specific clearance between the two inverters. Install the inverter at an appropriate height for ease of viewing LED indicator and operating switch(es).
  • Page 31 User Manual 4 Mechanical Mounting Insulated shoes Utility knife Slotted screwdriver Phillips screwdriver (M2, M6) (M4, M6, M8) Hammer drill Pliers Marker Level (φ12, φ14) Rubber mallet Socket wrench set Wrench Wrist strap (16mm) (13 mm, 16 mm) Wire cutter Wire stripper Hydraulic plier Heat gun...

  • Page 32: Moving The Inverter

    4 Mechanical Mounting User Manual Moving the Inverter Before installation, remove the inverter from the packing case and move it to the installation site. Follow the instructions below as you move the inverter: • Always be aware of the weight of the inverter. •...
  • Page 33 User Manual 4 Mechanical Mounting 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. Continue hoisting the device to the destination after ensuring the safety. step 4 Remove the lifting rings and reassemble the sealing screws released in Step 1.

  • Page 34: Installing Mounting-Bracket

    4 Mechanical Mounting User Manual The lifting rings and the sling are not within the delivery scope. - - End Installing Mounting-bracket Inverter is installed on the wall and bracket by means of mounting bracket. The expansion plug set shown below is recommended for the installation. figure 4-1 Dimensions of Mounting-bracket 4.5.1 PV Bracket-Mounted Installation step 1 Assemble the mounting-bracket.

  • Page 35: Wall-Mounted Installation

    User Manual 4 Mechanical Mounting Components Description Mounting-bracket – Full threaded bolt M10*45 – Metal bracket – Flat washer Spring washer – – Hex nuts - - End 4.5.2 Wall-Mounted Installation step 1 Assemble the mounting-bracket. step 2 Level the assembled mounting-bracket by using the level, and mark the positions for drilling holes.

  • Page 36: Installing The Inverter

    4 Mechanical Mounting User Manual step 4 Install the mounting-bracket to the wall with the expansion bolts with the expansion bolts. Components Description – Wall Fastening the bolt in the sequence of nut, spring wash- Expansion bolt er, slat washer Mounting-bracket –...
  • Page 37 User Manual 4 Mechanical Mounting - - End...

  • Page 38: 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 39: Terminal Description

    User Manual 5 Electrical Connection • All vacant terminals must be covered with waterproof covers to prevent affect- ing the protection performance. • When the wiring is completed, seal the gap at the 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 40: Electrical Connection Overview

    5 Electrical Connection User Manual Item Terminal Mark Note MC4 PV connector SG30CX, SG30CX-NI, SG33CX: 6 pairs of terminals PV terminals + / - SG40CX: 8 pairs of terminals SG50CX, SG50CX-NI: 10 pairs of terminals For RS485 communication wiring. COM1 COM2 For Communication module connection.
  • Page 41 The same as that of the PE wire in the AC grounding core copper wire cable cable cable L1,L2,L3,N wire (SG30CX, SG30CX-NI, SG33CX): 16 ~ 70 L1,L2,L3,N wire (SG40CX): Outdoor multicore 25 ~ 70 AC cable copper or alumi- 20 ~ 50...

  • Page 42: Crimp Ot/Dt Terminal

    5 Electrical Connection User Manual Crimp OT/DT terminal Crimp OT/DT terminal 1. Heat shrink tubing 2. OT/DT terminal 3. Hydraulic pliers 4. Heat gun Aluminum Cable Requirements If an Aluminum cable is selected, use a copper to Aluminum adapter terminal to avoid direct contact between the copper bar and the Aluminum cable.

  • Page 43: External Protective Grounding Connection

    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.

  • Page 44: Ac Cable Connection

    AC Circuit Breaker An independent circuit breaker or fuse should be installed on the output side of the inverter to ensure safe disconnection from the grid. Recommended rated voltage Inverter Recommended rated current SG30CX SG33CX SG40CX 400V SG50CX 100A SG30CX-NI SG50CX-NI 100A...
  • Page 45 SG33CX 330 mA SG40CX 400 mA SG50CX 500 mA SG30CX-NI 330 mA SG50CX-NI 500 mA Multiple Inverters in Parallel Connection If multiple inverters are connected in parallel to the grid, ensure that the total number of par- allel inverters does not exceed 30.

  • Page 46: Requirements For Ot/Dt Terminal

    5 Electrical Connection User Manual • At an ambient temperature of 45℃, the transformer can run in 1.1 times of load for long time. • A transformer with a short-circuit impedance 6% (permissible tolerance: ±10%) is recommended. • The voltage drop of system cable is no more than 3%. •...
  • Page 47 User Manual 5 Electrical Connection Outer diameter D(mm) Seals 20~25 a+b+c+d 25~30 a+b+c 30~40 40~50 step 3 Strip the protection layer and insulation layer by specific length, as described in the figure below. step 4 Make the cable and crimp OT/DT terminal,refer to "...
  • Page 48 5 Electrical Connection User Manual Ensure that the depth L of the socket used is not less than 18mm. step 7 Secure the junction box, fasten the buckle, and secure it with supplied M4×10 screw. step 8 Gently pull the cable backwards to ensure firm connection, and fasten the swivel nut clockwise.

  • Page 49: Dc Cable Connection

    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 50: Pv Input Configuration

    5 Electrical Connection User Manual The following requirements about PV string connection must be met. Otherwise, it may cause irreversible damage to the inverter, which is not covered by the warranty. • Mixed use of PV modules of different brands or models in one MPPT circuit, or PV modules of different orientation or inclination in a string may not damage in- verter, but will cause system bad performance! •...

  • Page 51: Assembling 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. To ensure IP66 protection, use only the supplied connector.

  • Page 52: Installing Pv Connector

    5 Electrical Connection User Manual step 4 Check for polarity correctness. - - End 5.7.3 Installing PV Connector step 1 Rotate the DC switch to “OFF” position. 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 1,100V.

  • Page 53: Communication Junction Box

    User Manual 5 Electrical Connection step 4 Follow the foregoing steps to connect PV connectors of other PV strings. step 5 Seal any unused PV terminal with a terminal cap. If the PV string is equipped with the optimizer, please refer to the optimizer manual for elec- trical connections and make sure that the polarity of the optimizer cables is correct.

  • Page 54: Communication Wiring Board

    5 Electrical Connection User Manual During installation, firmly press the junction box to ensure that the pin can be in- serted successfully. Never hit the pin with a heavy object, such a hammer. Otherwise, it will be irrecov- erably damaged. Communication Wiring Board The communication board of the inverter includes two layers.

  • Page 55: Rs485 Communication System

    User Manual 5 Electrical Connection All three interfaces can be connected to a data acquisition device (Data Logger), to achieve data exchange with PC or other monitoring devices. The RS485-1 crimp and the RJ45 interface can be applied to applications where multiple in- verters communicate in a daisy-chain form.
  • Page 56 5 Electrical Connection User Manual figure 5-5 Multi-inverter Connection 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 equipped with a RS485-dip switch (SW1), and the shielding layer of the communication cable should be sin- gle-point grounded.

  • Page 57: Connection Procedure(Terminal Block)

    User Manual 5 Electrical Connection 5.10.3 Connection Procedure(Terminal Block) RS485 communication cables should be shielded twisted pair cables or shielded twisted pair Ethernet cables. There are three communication terminals, and the silkscreen marks are COM1/ COM2/COM3. Please choose according to the actual situation. step 1 Remove the communication junction box, see"...

  • Page 58: Connection Procedure (Rj45 Ethernet Port)

    5 Electrical Connection User Manual step 5 Insert the terminal base into the corresponding terminal. table 5-3 Terminal definition Definition RS485 A IN, RS485A differential signal+ RS485 A OUT, RS485A differential signal+ RS485 B IN, RS485B differential signal- RS485 B OUT, RS485B differential signal- step 6 If other wiring operations need to be performed on the communication board, finish the wir- ing operations before performing the following steps.
  • Page 59 User Manual 5 Electrical Connection Outer Diameter D(mm) Seal 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(Pin 3 and Pin 6 are for communication connection).

  • Page 60: Dry Contact Connection

    5 Electrical Connection User Manual 5.11 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 ter- minal block. 5.11.1 Dry Contact Function The configuration circuit board is provided with fault output dry contact and emergency stop dry contact, as shown in the figure below.
  • Page 61 User Manual 5 Electrical Connection figure 5-7 Normally open contact figure 5-8 Normally closed contact Devices connected to the relay should comply with related requirements: AC-Side Requirements DC-Side Requirements Max. voltage: 250 Vac Max. voltage: 30Vdc Max. current: 5A Max. current: 5A DI terminal (emergency stop dry contact): the dry contact can be configured to be an emergency stop contact.

  • Page 62: Wiring Procedure

    5 Electrical Connection User Manual figure 5-9 Local stop contact figure 5-10 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". 5.11.2 Wiring Procedure Refer to the wiring of terminal block described in chapter"5.10.3 Connection Procedure(Ter- minal Block)"...

  • Page 63: Connection Procedure

    20kΩ Enable the DRM function through the iSolarCloud APP. If there are any problems, contact your distributor first. If the problem persists, contact SUNGROW. The DRM function is only applicable to devices for Australia and New Zealand. 5.12.2 Connection Procedure step 1 Remove the communication junction box, see"...
  • Page 64 5 Electrical Connection User Manual step 3 Loosen the swivel nut and select an appropriate seal according to cable outer diameter. Lead the cable through the swivel nut, and seal successively. Outer Diameter D Seal (mm) 4.5 ~ 6 6 ~ 12 a + b 12 ~ 18 step 4 Insert the RJ45 connector to the RJ45 jack.

  • Page 65: Communication Module Connection (Optional)

    - - End 5.13 Communication Module Connection (optional) Connect the communication module produced by SUNGROW to the communication acces- sory 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 66: 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 67: 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 68: Function Overview

    7 iSolarCloud App User Manual Function Overview The App provides parameter viewing and setting functions, as shown in the following figure. figure 7-1 App Function Tree Map Login 7.4.1 Requirements The following requirements should be met: • The AC or DC side of the inverter is powered-on. •...
  • Page 69 User Manual 7 iSolarCloud App • Tap "Manual connection" and select "Others" at the bottom of the page, the Bluetooth search page will automatically pop up, and select the inverter to be connected according to the SN on the nameplate on the side of the inverter body. figure 7-2 Bluetooth Connection step 3 Enter the identity verification interface after the Bluetooth connection is established.
  • 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 interface of initializing protec- tion parameter.
  • Page 71 User Manual 7 iSolarCloud App In the European region, such as Sweden, Norway, Hungary, Portugal, Romania, Greece, Ukraine etc. whose grid code complies with EN50549, select the parame- ter EN50549_1 (LV grid- connection) or EN50549_2 (MV grid-connection) with proper manual settings. In the Brazilian region, set the country code as "Brazil".

  • Page 72: Home

    7 iSolarCloud App User Manual Grid Type Network Service Provider CitiPower & Powercor • ≤ 5 kVA for single-phase & 30 kVA for three-phase • > 30 kVA three-phase United Energy • UE-ST-2008.1: ≤ 10 kW for single- phase & 30 kW for three-phase •...
  • Page 73 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 74: Run Information

    7 iSolarCloud App User Manual table 7-3 Description of Inverter State Description State After being energized, 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 Inverter is stopped.
  • Page 75 User Manual 7 iSolarCloud App table 7-5 Run Information Classifica- Description Parameter tion String n Voltage The input voltage of the n string String n current The input current of the n string Information Total On-grid Run- ning Time Daily On-grid Run- ning Time Negative Voltage to Inverter DC side negative to ground voltage value...

  • Page 76: Records

    7 iSolarCloud App User Manual Classifica- Description Parameter tion Phase C Current Records Tap Records on the navigation bar to enter the interface showing event records, as shown in the following figure. figure 7-7 Records Fault Alarm Record Tap Fault Alarm Record to enter the interface, as shown in the following figure. figure 7-8 Fault Alarm Record to select a time segment and view corresponding records.
  • Page 77 User Manual 7 iSolarCloud App figure 7-9 Detailed Fault Alarm Information Yield Record Tap Yield Record to enter the interface showing daily power generation as shown in the fol- lowing figure. 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.

  • Page 78: More

    7 iSolarCloud App User Manual Description Parameter Monthly yield Shows the power output every month in a year. histogram Annual yield Shows the power output every year. histogram Tap the time bar on the top of the interface to select a time segment and view the corre- sponding power curve.

  • Page 79: Operation Parameters

    User Manual 7 iSolarCloud App figure 7-12 System Parameters * The image shown here is for reference only. Boot/Shutdown Tap Boot/Shutdown to send the boot/shutdown instruction to the inverter. For Australia and New Zealand, when the DRM state is DRM0, the "Boot" option will be prohibited.
  • Page 80 7 iSolarCloud App User Manual figure 7-14 PID Parameters table 7-7 PID Parameter Description Description Parameter Enabling/Disable the PID night recovery function. Once enabled, it PID Recovery works between 22:00 pm and 5:00 am by default. If ISO impedance abnormality or PID function exception is de- tected during running of the PID function, the inverter reports a Clear PID alarm PID abnormity and reminds the user to take corresponding meas-...

  • Page 81: Power Regulation Parameters

    User Manual 7 iSolarCloud App 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. figure 7-17 Active Power Regulation table 7-8 Active Power Regulation Definition/Setting Range Parameter...
  • Page 82 7 iSolarCloud App User Manual Definition/Setting Range Parameter Description Active power rising The rise rate of inverter active 1%/min~6000%/min gradient power per minute. Active power setting Switch for enabling/disabling Enable/Disable persistence the function of saving output limited power. Active power limit The switch for limiting output Enable/Disable power.
  • Page 83 User Manual 7 iSolarCloud App figure 7-18 Reactive Power Regulation table 7-9 Reactive Power Regulation Definition/Setting Range Parameter Description Reactive power genera- Switch for enabling/disabling Enable/Disable tion at night Q at night function. Reactive power ratio at Reactive power ratio set for -100%~0%/ night the Q at night function.
  • Page 84 7 iSolarCloud App User Manual Definition/Setting Range Parameter Description QP_P3 Output power at P3 on the Q 20.0%~100.0% (P) mode curve (in percentage) QP_K1 Power factor at P1 on the Q(P) Curve A/Curve mode curve C:0.800~1.000 Curve B: [-0.600~0.600]*Ac- tive Overload Rate/1000 QP_K2 Power factor at P2 on the Q(P) Curve A/Curve C:...
  • Page 85 User Manual 7 iSolarCloud App Definition/Setting Range Parameter Description QU_V2 Pre-set grid voltage U2 that is 80.0%~100.0% reactive according to the grid voltage. QU_Q2 Pre-set proportion of reactive [-60.0%-60.0%]* Overload power according to the grid Rate/1000 voltage U2. QU_V3 Pre-set grid voltage U3 that is 100.0%~120.0% reactive according to the grid voltage.

  • Page 86: Communication Parameters

    7 iSolarCloud App User Manual figure 7-19 Q(U) Curve figure 7-20 Q(P) Curve 7.8.4 Communication Parameters Tap Settings→Communication Parameters to enter the corresponding screen, as shown in the following figure. The device address ranges from 1 to 246. figure 7-21 Communication Parameters 7.8.5 Firmware Update 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.

  • Page 87: Password Changing

    User Manual 7 iSolarCloud App step 4 Select the device model before downloading the firmware. Tap the device name in the de- vice list to enter the firmware upgrade package detail interface, and tap behind the firm- ware upgrade package to download it. step 5 Return to the Firmware Download interface, tap in the upper right corner of the interface to view the downloaded firmware upgrade package.
  • Page 88 7 iSolarCloud App User Manual figure 7-22 Modify Password The password shall consisit of 8–20 digits, including letters and numbers.

  • Page 89: System Decommissioning

    System Decommissioning Disconnecting 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 90: Disposal Of 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. step 4 If the inverter will be used again in the future, please refer to "3.2 Inverter Storage"...

  • Page 91: 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 92 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 93 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 94 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 95 If so, replace the dam- aged cable and secure terminals to ensure a reli- able connection. 5. 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 96 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 97 Close the AC and DC switches in turn 15 248–255, 300– minutes later and restart the system. 322, 324–328, 3. Contact Sungrow Customer Service if the pre- 401–412, 600– ceding causes are ruled out and the fault persists. 603, 605, 608, 612, 616, 620, 622–624, 800,...
  • Page 98 Close the AC and DC switches in turn 15 364-395 minutes later and restart the system. Overvoltage Fault 2. If the fault persists, please contact Sungrow Power Customer Service. 1. Check whether the number of PV modules of the corresponding string is less than other strings.

  • Page 99: Maintenance

    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 100: Routine Maintenance

    To avoid the risk of electric shock, do not perform any other maintenance opera- tions beyond this manual. If necessary, contact your distributor first. If the problem persists, contact SUNGROW. Otherwise, the losses caused is not covered by the warranty.

  • Page 101: Cleaning Air Inlet And Outlet

    User Manual 9 Troubleshooting and Maintenance Item Method Period Check whether the cable entry is in- sufficiently sealed or the gap is exces- Cable entry Once a year sively large, and reseal the entry when necessary. Check whether cables are loose or fall off.
  • 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: Appendix

    10 Appendix 10.1 Technical Data SG30CX SG30CX Parameters SG33CX Input (DC) Recommended max. PV in- 45kW put power 1100V Max. PV input voltage Min. PV input voltage / 200V / 250V Start-up input voltage Nominal PV input voltage 585V MPP voltage range 200 –...
  • Page 104 10 Appendix User Manual SG30CX SG30CX Parameters SG33CX Power factor at nominal > 0.99 / 0.8 leading – 0.8 lagging power / Adjustable power factor Feed-in phases / AC connection Efficiency Max. efficiency / European 98.6% / 98.3% efficiency Protection reverse polarity protection AC short circuit protection Leakage current protection...
  • Page 105 User Manual 10 Appendix SG30CX SG30CX Parameters SG33CX 4000 m (> 3000 m derating) Max. operating altitude LED, Bluetooth + App Display RS485 / WLAN / RS485 / Option- RS485 / Optional: Optional: al: WLAN , WLAN, Ethernet Communication Ethernet Ethernet MC4 (Max.
  • Page 106 10 Appendix User Manual SG50CX SG50CX SG40CX Parameters 40 kVA @45 ℃, 50 kVA @45 ℃, 400Vac / 44 kVA 400Vac / 55kVA @ @ 40 ℃, 40 ℃, 400Vac 400Vac 40 50kVA AC output power 50KVA@50℃, KVA@50℃, 415Vac / 55kVA @ 415Vac / 44 45 ℃,415Vac KVA@45℃,...
  • Page 107 Country of manufacture (1) For Countries “AU” and “NZ”. (2) For other countries. (3) The inverter enters the standby state when the input voltage ranges between 1000V and 1100V. Parameters SG30CX-NI SG50CX-NI Input (DC) Recommended max. PV in- 45kW 76kW...
  • Page 108 10 Appendix User Manual Parameters SG30CX-NI SG50CX-NI Nominal PV input voltage 585V MPP voltage range 200 – 1000V No. of independent MPP inputs No. of PV strings per MPPT 130A(26 A / 26 A / 26 A / 26 78 A (26 A / 26 A / 26 A) Max.

  • Page 109: Wring Distance Of Di Dry Contact

    User Manual 10 Appendix Parameters SG30CX-NI SG50CX-NI PID recovery function DC Terminal Protective Cover Arc fault circuit interrupter (AFCI) DC Type II / AC Type II Surge protection General Data Dimensions (W*H*D) 702×595×310mm 782×645×310mm 50kg 62kg Weight Topology Transformerless Degree of protection...
  • Page 110 10 Appendix User Manual 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 Inverter Quantity and Maximum Wiring Distance Maximum Wiring Distance(unit:m) Number of Inverter...

  • Page 111: 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 112 10 Appendix User Manual 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 113 Sungrow Power Supply Co., Ltd. www.sungrowpower.com...

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