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Huawei SUN2000-23KTL - User Manual

Huawei SUN2000-23KTL
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31186168
SUN2000 (8KTL-28KTL)
User Manual
Issue
07
Date
2014-07-30
HUAWEI TECHNOLOGIES CO., LTD.

Table of Contents

Other manuals for Huawei SUN2000-23KTL

Preview: Quick Installation Guide
Quick Installation Guide12 pages

Questions and Answers

  • N
    Nancy DuarteSep 12, 2025
    How to troubleshoot Low Array Insulation Resistance on a Huawei Inverter?
    • P
      patriciamanningSep 12, 2025
      If your Huawei Inverter displays 'Low Array Insulation Resistance', it means the insulation resistance against the ground for PV arrays is less than the minimum value. You should: 1. Check the insulation resistance against the ground for the outputs of PV arrays. If a short circuit occurs, rectify the fault. 2. If the insulation resistance against the ground is less than the default value in a rainy environment, set the insulation resistance threshold.
  • K
    Kelly HarperSep 9, 2025
    What causes Invert Module Fault in Huawei SUN2000-23KTL?
    • J
      John CruzSep 9, 2025
      If your Huawei Inverter displays 'Invert Module Fault', it indicates a protection activation for the inversion circuit inside the SUN2000 due to abnormal external conditions. The SUN2000 detects its external working conditions in real time, and therefore the SUN2000 automatically recovers to the normal operating status after the fault is rectified. If the Reason ID is 20, check whether the inverter output cable is short-circuit.
  • A
    Alexis LoveSep 8, 2025
    What to do if Huawei SUN2000-23KTL Inverter shows System Fault?
    • B
      brandonwashingtonSep 8, 2025
      If your Huawei SUN2000 Inverter reports a 'System Fault', it indicates an unrecoverable fault within the inverter's internal circuitry. To attempt a fix, flip the DC switch on the SUN2000 to the OFF position, wait for 5 minutes, and then flip the DC switch back to the ON position. Check if the fault clears.
  • D
    Douglas GreeneSep 7, 2025
    Why does my Huawei Inverter show Frequency Abnormal?
    • C
      Cole HorneSep 7, 2025
      If your Huawei Inverter displays a 'Frequency Abnormal' error, it means that the actual frequency of the grid is higher than the local grid standards requirements. If this occurs accidentally, the SUN2000 will automatically recover to normal operation once the grid stabilizes. However, if the alarm repeats, verify that the grid frequency is within the acceptable range. If it is not, contact your local power operator. If the frequency is within range, you may need to change the power grid overfrequency and underfrequency protection points after obtaining approval from the local power operator.
  • B
    Brittany WilsonAug 23, 2025
    How to fix DC Over Voltage error on Huawei SUN2000-23KTL Inverter?
    • J
      Julie WoodwardAug 23, 2025
      The Huawei Inverter might show a DC Over Voltage error if too many PV modules are connected in series. This makes the PV string's open-circuit voltage higher than the inverter's maximum operating voltage. To fix this, reduce the number of PV modules connected in series until the PV string output voltage is within the specified range for the Huawei Inverter. After adjusting, the inverter should work correctly.
  • J
    Jerome VasquezSep 5, 2025
    How to fix DC Over Voltage on Huawei SUN2000-23KTL?
    • M
      mathewselizabethSep 5, 2025
      If your Huawei Inverter displays a 'DC Over Voltage' error, it means the open circuit voltage of the PV arrays is greater than the maximum input voltage of the SUN2000. This is often because too many PV modules are connected in series, leading to excessively high output voltage. To resolve this, check the number of PV modules connected in series and adjust to decrease the output voltage to meet the voltage requirements for the SUN2000.
  • D
    David SmithSep 4, 2025
    What to do if Huawei SUN2000-23KTL Firmware Upgrade Failed?
    • T
      thompsonvalerieSep 4, 2025
      A Firmware Upgrade Failed error on a Huawei Inverter means the upgrade process was incomplete. Upgrade again.
  • A
    Amber GuerreroSep 3, 2025
    What does System Fault mean on my Huawei Inverter?
    • G
      Gregory WilsonSep 3, 2025
      A System Fault on the Huawei Inverter indicates an unrecoverable fault has occurred on a circuit inside the inverter. Flip the DC SWITCH on the inverter to OFF, wait 5 minutes, and then flip the DC SWITCH to ON. Check if the fault is rectified.
  • J
    Jonathan ReynoldsSep 1, 2025
    What to check for Electrical Grounding Fault on Huawei SUN2000-23KTL Inverter?
    • A
      Andrew ClarkSep 2, 2025
      An Electrical Grounding Fault on the Huawei Inverter indicates that the neutral wire or PGND cable is not properly connected to the inverter. Ensure that the neutral wire and PGND cable are correctly connected.
  • V
    Veronica MolinaAug 31, 2025
    What causes String 1-6 Abnormal error on Huawei SUN2000-23KTL Inverter?
    • R
      Rachel ClarkSep 1, 2025
      The Huawei Inverter displays 'String 1-6 Abnormal' when PV strings have been shielded for a long time or have deteriorated. Check if the output current of a PV string is obviously less than the output current of other PV strings. Also, check whether the PV string is shielded.

Summary

About This Document

Purpose

Describes the SUN2000 in terms of installation, electrical connections, commissioning, maintenance, and troubleshooting.

Intended Audience

Identifies the target users for this document as PV plant operators and qualified electrical personnel.

Symbol Conventions

Defines the safety symbols and their meanings used throughout the document.

Safety Precautions

Personnel Requirements

Defines qualifications for operating the SUN2000, emphasizing trained electrical technicians.

Identification Protection

Details importance of product labels and nameplates for secure operation.

Installation Safety

Covers safety during installation, including clearance, environment, and electrical precautions.

Overview

Introduction

Introduces the SUN2000's function, model range, and typical applications.

Appearance

Describes the physical appearance and dimensions of the SUN2000 from different views.

Symbol Conventions

Defines safety and operational symbols and nameplates used in the manual.

Monitoring Panel

Details the components of the SUN2000 monitoring panel: LCD, indicators, and buttons.

Working Principles

Explains the functional principles and internal design of the SUN2000.

Inverter Storage

Installation

Checking Before Installation

Procedures for checking packing materials and verifying deliverables are intact.

Tools

Lists required tools for installation and electrical connections, with specifications.

Determining the Installation Position

Guidelines for selecting an appropriate and safe installation location for the SUN2000.

Moving the SUN2000

Step-by-step instructions for safely moving the SUN2000, emphasizing two-person lift.

Support-mounting the SUN2000

Procedures for securing the SUN2000 to a support structure using its rear panel.

Wall-mounting the SUN2000

Detailed steps for mounting the SUN2000 onto a wall using expansion bolts.

Electrical Connections

Installing PGND Cables

Instructions for connecting the protection ground (PGND) cables for proper grounding.

Connecting AC Output Power Cables

Details on connecting the SUN2000 to the AC power distribution frame or grid.

Installing DC Input Power Cables

Steps for connecting DC input power cables from PV arrays to the SUN2000.

Connecting Communications Cables

Guide for connecting USB and RS485 communication cables for data transfer.

System Operation

Checking Before Power-On

Pre-power-on checks to ensure the SUN2000 is installed correctly and safely.

Powering on the SUN2000

Procedure for turning on the SUN2000 after all electrical connections are complete.

Setting Initialization Parameters

Guide for setting initial system language, time, and power grid standard code.

LCD

Monitoring Menu Hierarchy

Overview of the menu structure for navigating the SUN2000's LCD interface.

Monitoring Operations

Details on viewing system operating information, alarm records, and setting user parameters.

Maintenance

Powering Off the SUN2000

Procedure for safely shutting down the SUN2000 before performing maintenance.

Daily Maintenance

Routine maintenance tasks and recommended intervals for ensuring long-term operation.

Common Faults and Troubleshooting Measures

Identifies common faults and provides measures to troubleshoot and resolve them.

Inverter-Associated Operations

Removing the SUN2000

Steps for safely disconnecting and removing the SUN2000 from its installation.

Packing the SUN2000

Guidelines for packing the SUN2000 for transport or storage using original or suitable materials.

Disposing the SUN2000

Procedures for environmentally sound disposal of the SUN2000 according to local regulations.

Technical Specifications

Efficiency

Details on maximum and European efficiency ratings for different models.

Input

Technical input specifications including MPP voltage range, max input voltage, and current.

Output

Technical output specifications such as rated power, voltage, current, and frequency.

Protection

Lists built-in protection features like anti-islanding, overcurrent, and surge arresters.

Display and Communication

Information on the display type and available communication interfaces (RS485, USB).

General Data

Physical dimensions, weight, operating temperature range, and warranty information.

Standards Compliance

Lists safety, EMC, and relevant power grid standard certifications.

Quality Assurance

Warranty

Details on the product's warranty period, terms, conditions, and user requirements.

Quality Assurance Regulations

Huawei's policies regarding equipment maintenance, replacement, and returns.

Disclaimer

Lists exclusions from warranty coverage due to misoperation, incorrect installation, or unauthorized changes.

Abbreviation

Power Grid Standard Codes

Huawei SUN2000-23KTL Specifications

General IconGeneral
ModelSUN2000-23KTL
Rated Output Power23000 W
Max. DC Voltage1100 V
Maximum DC Input Voltage1100 V
Start Voltage200 V
MPPT Efficiency99.9%
Nominal AC Output Voltage400 V
Rated AC Voltage400 V
AC Output Frequency50 Hz / 60 Hz
Max Efficiency98.6%
Number of MPPTs2
Dimensions (W x H x D)600 mm x 470 mm x 210 mm
Weight30 kg
Operating Temperature Range-25 °C to +60 °C
Protection DegreeIP65
Input Voltage Range200 V - 1000 V
MPPT Voltage Range200-1000 V
Max. AC Power23000 W
Protection ClassIP65
Protection LevelIP65

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