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KStar KSG-20K - User Manual

KStar KSG-20K
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KSG-10K/12K/15K/17K/20KKSG-10K/12K/15K/17K/20K
201803 Ver 1.1
Solar InverterSolar Inverter
User Manual

Table of Contents

Questions and Answers

  • R
    Rachel ShawSep 15, 2025
    What to do if my KStar KSG-20K displays SPI communication Fault (F18)?
    • J
      Jacqueline BrownSep 16, 2025
      If your KStar Inverter is showing an 'SPI communication Fault', disconnect the PV input and restart the inverter to see if the fault clears. If the issue continues, contact your local distributor.
  • T
    trevinojamesAug 25, 2025
    What to do if my KStar KSG-20K Inverter shows 'Ambient Temperature High' (F12)?
    • J
      Julie CameronAug 25, 2025
      If your KStar Inverter displays error code F12, indicating a high ambient temperature, take these steps: 1. Disconnect the PV input and allow the inverter to cool down. Then, restart the inverter to see if normal operation resumes. 2. Check the environmental temperature to ensure it is within the specified working range. 3. If the fault persists, contact your local distributor for further assistance.
  • J
    jenniferwallaceAug 25, 2025
    How to resolve Heatsink Temperature High (F13) error on KStar KSG-20K Inverter?
    • C
      Christina DavisAug 26, 2025
      If you're seeing a 'Heatsink Temperature High' error (F13) on your KStar Inverter, follow these steps: 1. Disconnect the PV input and allow the inverter to cool down before restarting it to see if it returns to normal operation. 2. Verify that the environmental temperature is within the recommended working range. 3. If the problem persists, contact your local distributor.
  • A
    abeckAug 26, 2025
    What should I do if my KStar KSG-20K displays 'Bus Voltage Abnormal' (F06)?
    • C
      Cody KempAug 27, 2025
      If your KStar Inverter is showing a 'Bus Voltage Abnormal' error (F06), try the following: 1. Check the setting of input mode. 2. Try restarting the inverter every few minutes, several times, to see if the fault clears. 3. If the fault persists, contact your local distributor for assistance.
  • K
    Kimberly MillsSep 16, 2025
    What should I do if my KStar KSG-20K Inverter displays Leakage Current High (F20)?
    • J
      Jeffrey MullinsSep 17, 2025
      If your KStar Inverter is showing a 'Leakage Current High' error, disconnect the PV input and restart the inverter to see if the fault clears. If the issue continues, contact your local distributor.
  • S
    Shawn PaulSep 23, 2025
    What to do if my KStar KSG-20K Inverter displays DSP communication Lost (F32)?
    • J
      Joseph PerrySep 23, 2025
      If your KStar Inverter displays 'DSP communication Lost', disconnect the PV input and restart the inverter to see if the fault clears. If the issue continues, contact your local distributor.
  • D
    David Carter MDSep 8, 2025
    What to do if my KStar KSG-20K Inverter shows a system faulty or failure type error?
    • J
      Jasmine MillsSep 8, 2025
      If your KStar Inverter displays a system fault or failure, it could be due to several reasons: * AC voltage and frequency being too high or too low (F00-F03): Check if the mains voltage complies with local safety standards and ensure the AC output line is properly connected. Verify its output voltage. * Bus voltage being too high or too low (F04-F05): Verify the setting of the input mode. * Bus Voltage Abnormal (F06): Check the setting of input mode. * Insulation impedance Fault (F07): Measure the impedance of PV+/PV- to ground; it should be over 500KΩ. For all these issues, you can try disconnecting the PV input, restarting the inverter, and checking if the fault persists. If problems continue, contact your local distributor.
  • F
    ffloresSep 9, 2025
    What to do if my KStar Inverter indicates a Heatsink Temperature High (F13)?
    • S
      scott90Sep 9, 2025
      If your KStar Inverter is showing a 'Heatsink Temperature High' error, first, disconnect the PV input and allow the inverter to cool down. Then, restart it to see if normal operation resumes. Also, check the environmental temperature to ensure it is within the specified working range. If the problem persists, contact your local distributor.
  • V
    Virginia CohenSep 2, 2025
    What to do if KStar KSG-20K Inverter displays 'Leakage Current High' (F20)?
    • H
      harrisnicholasSep 2, 2025
      If your KStar Inverter displays 'Leakage Current High' (F20), here’s what you should do: 1. Disconnect the PV input and restart the inverter to see if the fault clears. 2. If the fault persists, contact your local distributor.
  • N
    nicholas30Aug 31, 2025
    How do I fix an AC Relay Fault (F14) on my KStar Inverter?
    • J
      Jamie WoodsSep 1, 2025
      If your KStar Inverter is showing an AC Relay Fault (F14), try these steps: 1. Disconnect the PV input and restart the inverter to see if the fault clears. 2. If the fault persists, contact your local distributor.

Summary

Introduction for Signs

Warning and Instruction Symbols

Explains warning and instruction symbols used in the manual for safety and operation.

Introduction to the Solar Inverter

Preface

Welcomes users and solicits suggestions for the photovoltaic grid-connected inverter.

PV Grid-connected Generating System Overview

Describes the composition and function of a photovoltaic grid-connected generating system.

How to Use This Manual

Provides guidance on reading the manual for installation, use, and maintenance of the inverter.

Safety Instructions

General Safety Precautions

Lists general safety rules for installation, operation, and maintenance of the inverter.

High Voltage Warning

Warns about exceeding 1000V DC input voltage, which can cause permanent damage.

Overall Introduction

Circuit Structure Overview

Explains the main circuit of the inverter and the adoption of MPPT algorithm.

External Interface Description

Details the DC input, communication interfaces (RS232, RS485), AC output, and DC switch.

System Operation

System Operating Modes

Describes modes like initialization, waiting, self-checking, grid-connected, and error modes.

Grid-connected Operation

Explains the process and prerequisites for connecting the inverter to the grid.

System Shutdown Procedure

Explains how the inverter shuts down automatically when power is low or faults occur.

Error and Alarm Information

Provides a table of working conditions, fault messages, and their descriptions.

System Fault and Troubleshooting Guide

Details common system faults, alarm messages, and their troubleshooting solutions.

Human-machine Interface

LCD Control Panel Overview

Describes the buttons and LEDs on the inverter's LCD control panel.

Networking for Monitoring

Explains design schemes for monitoring the photovoltaic power generation system.

Dry Contact Interface

Describes the optional dry contact interface for the inverter.

Remote Control Capabilities

Explains the inverter's remote shutdown, ON, and power limit functions via monitoring software.

LCD Operation Menu and Settings

Initialization and Menu Navigation

Covers inverter initialization, major cycle menu, and user interface navigation.

Setup Interface and Password Entry

Introduces the setup interface, password entry, and main setting categories.

Input, Grid, and Remote Control Configuration

Configures PV input mode, electric network standards, and remote control options.

Working Parameters: Voltage, Frequency, and Power

Sets starting voltage/delay, grid voltage/frequency limits, and power parameters.

Reactive Power, Derating, Communication, and Display Settings

Configures reactive power, power factor, derating, RS485, display language, and backlight.

System Maintenance, Reset, and Data Inquiry

Manages date/time, history, password, factory reset, and data inquiry functions.

Statistics and Generation Data

Displays time, paralleling, power peak, and energy generation statistics.

Installation Guide

Mechanical Installation and Requirements

Covers installation overview, safety, dimensions, and location guidelines.

Installation Procedure and Ambient Conditions

Details mounting steps, location, and environmental requirements.

Electrical Connection Requirements

Outlines requirements for PV array voltage, grid connection, wiring, and tools.

AC and DC Wiring Instructions

Provides instructions for connecting AC output and DC input wires.

Communication Wiring

Explains how to connect the inverter for communication monitoring via RS485/RS232.

Starting and Closing Procedures

Inverter Starting Process

Details the sequence of steps for starting the inverter and connecting to the grid.

Normal and Emergency Closing Procedures

Explains normal automatic closing and emergency shutdown procedures.

Technical Data Specifications

Appendix and Quality Assurance

Quality Assurance Policy

Details the company's quality assurance policy, conditions, and exclusions.

KStar KSG-20K Specifications

General IconGeneral
BrandKStar
ModelKSG-20K
CategoryInverter
LanguageEnglish

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