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Sungrow SG2K-S User Manual

Sungrow SG2K-S
95 pages
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SG2-6K-UEN-Ver14-202003 Version1.4
User Manual
SG2K-S / SG2K5-S / SG3K-S /
SG3K-D / SG3K6-D / SG4K-D /
SG4K6-D / SG5K-D / SG6K-D
PV Grid-Connected
Inverter

Table of Contents

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Sungrow SG2K-S Specifications

General IconGeneral
BrandSungrow
ModelSG2K-S
CategoryInverter
LanguageEnglish

Summary

Safety Symbols

Hazard Indicators Explained

Explains DANGER, WARNING, CAUTION, and NOTICE symbols for hazard communication and safety.

1 Safety

Inverter Safe Handling and Operation

Details critical safety measures for handling and operating the inverter, including shock and burn risks.

2 Product Description

Inverter Intended Use and Warnings

Defines the inverter's intended application and critical warnings for proper operation to prevent damage.

Core Inverter Functions Explained

Describes the basic functions of the inverter, including DC to AC conversion, data storage, parameter configuration, and protection mechanisms.

Grid Voltage Operating Range

Defines the allowable grid voltage limits for inverter operation and protective actions against over/under-voltage.

Grid Frequency Operating Range

Specifies the acceptable grid frequency limits for inverter operation and protective actions against frequency deviations.

Active Power Regulation for Over-Voltage

Explains how the inverter regulates active power output in response to grid over-voltage conditions.

Over-Frequency Power Response

Details how the inverter adjusts power output based on grid frequency exceeding predefined thresholds, using derating curves.

Under-Frequency Power Response

Describes how the inverter adjusts power output in response to grid frequency drops below specified limits.

Reactive Power Regulation Modes

Explains the inverter's capabilities for controlling reactive power to support the grid, including PF and Q(U) modes.

4 Mechanical Mounting

Mounting Safety Precautions

Outlines critical safety measures, including electrical disconnection and handling precautions during mounting to prevent injury.

Optimal Location Requirements

Specifies optimal mounting location criteria for safe operation, longevity, and performance, considering environment and accessibility.

Installation Environment and Carrier Requirements

Details environmental conditions (flammability, accessibility, temperature, humidity) for installation and requirements for the mounting carrier.

Wall Mount Bracket Installation Procedure

Provides step-by-step instructions for mounting the inverter using the wall-mounting bracket and expansion plugs, including alignment and drilling.

Securing Inverter and Installing Modules

Details how to secure the inverter to the bracket with screws and install communication modules to the inverter.

5 Electrical Connection

Electrical Connection Safety Guidelines

Emphasizes crucial safety measures during electrical work, including PPE usage, handling high voltages, and disconnecting power sources.

Additional Grounding Connection Procedure

Explains the procedure and requirements for establishing an additional grounding connection for enhanced safety and proper operation.

AC Cable Connection Requirements

Details AC side requirements, including grid approval, voltage/frequency checks, and AC circuit breaker specifications for safe connection.

Assembling the AC Connector

Provides step-by-step instructions for assembling the AC connector, including cable preparation, stripping, and sealing.

Installing the AC Connector to Inverter

Guides on connecting the AC connector to the inverter terminals, including securing screws and PE conductor connection to the grounding bar.

DC Cable Connection Safety and Warnings

Highlights safety warnings for DC cable connection, emphasizing electric shock hazards and potential inverter damage if requirements are not met.

Assembling the PV Connector

Provides instructions for assembling PV connectors, ensuring IP65 protection and proper cable requirements like multi-core cables.

Installing the PV Connector to Inverter

Guides on connecting the inverter to PV strings, including rotating the DC switch to OFF and checking polarity correctness.

6 Commissioning

Pre-Commissioning Inspection Checklist

Lists essential checks before starting the inverter, covering electrical connections, accessibility, and safety labels.

Commissioning Procedure Steps

Outlines the step-by-step procedure for starting up the inverter, including country selection and parameter configuration.

7 LCD Operation

Advanced Settings and Password Input

Explains how to access and modify inverter parameters, requiring a password for protected settings.

Setting Protective Parameters

Details how to configure protective parameters for grid voltage and frequency to ensure safe operation according to standards.

8 System Decommissioning

Safe Inverter Disconnection Procedure

Provides step-by-step instructions for safely disconnecting the inverter from AC and DC power sources, including capacitor discharge.

9 Troubleshooting and Maintenance

Error Code Troubleshooting (App/LCD)

Lists common error codes displayed on the inverter or app and provides corresponding troubleshooting steps for grid and transient faults.

Inverter Maintenance Procedures and Safety

Outlines safety precautions and procedures for inverter maintenance, emphasizing safety and component replacement by authorized personnel.

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