SUNGROW SG30CX PV Grid-Connected Inverter Instruction Manual

SUNGROW SG30CX PV Grid-Connected Inverter Instruction Manual

This guide is valid for inverters SG30CX, SG33CX, SG40CX and SG50CX, providing the installation, electrical connection, commissioning and troubleshooting procedure.

NOTICE

• Contents may be periodically updated or revised due to product development. The information in this guide is subject to change without notice. In no case shall !his guide subs111ute for the user manual or rala1ed notes on the device.
• Make sure to read over, fully understand and strictly follow the detailed Instructions of the user manual and other related regulations before Installing the equipment. The user manual can be downloaded by visiting the website at http:/fsupport.sungrowpower.com/; or it can be obtained by scanning the QR code on the side of the equipment or the back cover of this guide.
• All operations can be performed only by qualified personnel, that must be trained in the installation and commissioning of the electrical system, as well as the dealing with hazards, have knowledge of the manual and of the local regulations and directives.
• Before installation, check that the package contents are intact and complete against the packing list. Contact SUNGROW or the distributor in case of any damaged or missing components.
• The cable must be Intact and well Insulated. Operation personnel must wear proper personal protective equipment (PPE) all the Ume.

1. Product Introduction

Appearance

Dimensions

2. Mechanical Mounting

Location Selection

The distance can be shortened to 200mm according to onsite conditions. In case the distance is less than 600mm, move the inverter from the mounting-bracket or wall before maintaining fans.

Installation

3. Electrical Connection

NOTICE

The DC cable must be a multi-core cables.

3-2 Additional Grounding Connection

NOTICE

• Since the inverter is a 1ransronnerless inverter, neither the negative pole nor the positive pole of the PV string can be grounded. Otherwise, the Inverter will not operate normally.
• There are two terminals. Use at least one of them to ground the Inverter.
• Apply paint 10 the grounding terminal to ensure corrosion resistance after connee11on.

3-3 AC Connection

NOTICE

• Before connecting the inverter to the grid, ensure the grid voltage and frequency comply with requirements
• Disconnect the AC-side circuit breaker and prevent it from inadvertent reconnection
• Observe the pin assignment of AC terminal block f a phase wire is connected to the ” PE ” terminal, it may permanent y damage the inverter
• Please avoid squeezing the cable insulation layer into the AC terminal. Improper connection may affect the normal operation of the inverter
• During AC cable connection, the cables inside the lower part of the device should be bended to be surplus in length. In this way, cable dropping or loosen ng, which can cause arc or other problems impairing functionality of the device, due to self-weight of the cables in case of land subsidence is avoided
• 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. See user manual for more details

3-4 DC connection

NOTICE

• Use the MC4 DC terminal within the scope of delivery. Damage to the device due to the use of incompatible terminal shall not be covered by the warranty

• There is a risk of inverter damage! The following requirements should be met. Failure to do so will void guarantee and warranty claims
  (1 ) Ensure that the open circuit voltage in any case does not exceed the inverter input upper limit of 1 1 OOV (2) Make sure the maximum short circuit current on the DC side is within the permissible range (3) Make sure the to- ground insulation performance of the PV string is sound

• The inverter will not function properly f the DC polar ties are reversed

• If the PV connectors are not assembled into place, it may cause an arc or overheat The loss caused by this issue will void the warranty

3-5 RS485 Communication Connection

As shown In the figure below, the Inverter ls equipped with three RS485 communication Interfaces and one dip switch.

All the three interfaces can be connected to a data acquisition device (Logger), to achieve data
exchange with PC or other monitoring devices. Multiple inverters can be connected in the daisy
chain manner via the RS485-1 terminal block and RJ45 terminal. A 120Q resistor can be connected in parallel between RS485-1 A/B pins by configuring the dip switch.

3-5-1 Communication junction box

Removal
Pull out the pin, and remove the junction box.

Installation

3-5-2 Connection Procedure

Terminal Block

*The image shown here is for reference only. Please wire according to the actual terminal definition.

RJ45

NOTICE

There are three RS485 communication terminals, and the silk screen marks are COMI /COM3/COM4. Please choose according to the actual situation

4. Commission

4-1 Inspection before Commissioning

4.2 Commissioning Procedure

Step l: Rotate the DC switch to the ” ON ” position.
Step 2: Connect the AC switch (if applicable) between the inverter and the grid.
Step 3: Connect the DC switch (if applicable) between the inverter and the PV string.
Step 4: Set initial protection parameters via the iSolarCloud APP. If the irradiation and grid conditions meet requirements, the inverter will normally operate.
Step 5:  Observe the LED indicator to ensure that the inverter operates normally.

LED indicator description

5. iSolarCloud

5-1 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.

*In case the communication module Eye or WiFi 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.

5-2 Download and Install
Method 1 : Scan the right QR code to download and install the APP.
Method 2: Download the APP through the following application stores:

• MyApp (Android, mainland China users)
• Google Play (Android, users other than mainland China ones)
• APP store ( i0S )

5-3 Initialize protection parameter

NOTICE
• To log in to the app, the following conditions must be met:

1. The AC and DC sides or the AC side of the inverter is powered-on.
2. The mobile phone is within 5m away from the inverter and there are no obstructions in between.
3. The Bluetooth function of the mobile phone is enabled.

Step l: After the installation is complete, click “Open” or click the phone desktop APP icon to open the app.

NOTICE

• The user name is ‘user” and the initial password is “pwl 1 1 1 ‘l To ensure account security, please change the password as soon as possible
• Reset the protection parameters if the country setting is incorrect. Otherwise, fault may occur.
• In European countries (regions), such as Netherlands, Sweden, Denmark, whose grid code complies with EN50549, select the parameter EN50549 1 (LV grid connection) or EN50549_2 (MV grid-connection)
• In the Brazilian region, set the country code to “Brazil” Selecting “Brazil 230” or “Brazil 240” will cause setting failure

Step5: If the inverter is initialized, the APP automatically turns to its home page.

*Screenshots in this manual are based on the Android system V2.1 .6, and the actual interfaces may differ.

Sungrow Power Supply Co., Ltd.

Add: No. 1699 Xiyou Rd.,New & High Technology Industrial Development Zone, 230088,Hefei, P. R. China.
Web: www.sungrowpower.com
Tel: +86 551 6532 7834 / 6532 7845

E-mail: info@sungrow.cn
Fax: +86 551 6532 7856

More information in the QR code or
at http://support.sungrowpower.com/

Specifications are subject to changes without advance notice.

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