Huawei SUN2000-8KTL User Manual (English)

Other manuals for Huawei SUN2000-8KTL

Quick Installation Guide27 pages

Quick Guide22 pages

Questions and Answers:

J
James JohnsonAug 18, 2025
How to fix DC Over Voltage error on Huawei Inverter?
- K
  Kayla JimenezAug 18, 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.
M
Martha JonesAug 20, 2025
What does Frequency Abnormal mean on a Huawei Inverter?
- J
  Jennifer RussellAug 20, 2025
  The Huawei Inverter displays a Frequency Abnormal error when the grid's actual frequency is higher or lower than the required value for the local grid. If this alarm occurs accidentally, it's possible there's an issue with the grid. The inverter will automatically revert to normal once the problem is resolved.
S
shanestuartAug 23, 2025
How to troubleshoot Low Array Insulation Resistance on Huawei SUN2000-8KTL?
- S
  Sandra RiveraAug 23, 2025
  The Huawei Inverter shows a Low Array Insulation Resistance error when the insulation resistance against ground of the PV strings is low, possibly due to a short circuit between PV strings and the ground. Check the insulation resistance against the ground of the PV strings and rectify any short circuit.
S
Stephanie NixonAug 26, 2025
What does String 1-6 Reverse mean on Huawei SUN2000-8KTL Inverter?
- T
  Tiffany ArnoldAug 26, 2025
  The Huawei Inverter shows 'String 1-6 Reverse' when the cables between PV strings were connected in reverse during installation. Check if the cables between PV strings are correctly connected and reconnect them if necessary.
T
Timothy HendricksAug 28, 2025
Why is my Huawei SUN2000-8KTL showing a Grid Voltage Abnormal error?
- E
  Eric ReyesAug 28, 2025
  The grid voltage may be beyond the allowed range. This can happen if the grid A, B, or C phase voltage is less than the allowed range (Reason ID = 1 to 6), or if there's a power outage, a disconnected AC line, or a tripped AC circuit breaker (Reason ID = 29). If it's an accidental grid issue, the Huawei Inverter should automatically return to normal once the problem is resolved. Check if the AC voltage is normal.
J
Jennifer MorrisAug 30, 2025
What to do if Huawei Inverter shows Invert Module Fault?
- F
  foleyallenAug 30, 2025
  The Huawei Inverter indicates an Invert Module Fault when abnormal external conditions trigger converter circuit protection inside the inverter. This could be due to a sharp drop in grid voltage or a short circuit, causing high output current (Reason ID = 4), or the inverter's output short-circuiting (Reason ID = 20). The inverter monitors external conditions and should return to normal once the issue is resolved. Check for any short circuits in the inverter's output cables and fix them.
D
Dr. Anthony Gutierrez DDSSep 1, 2025
What causes DC Bus Voltage Fault in Huawei Inverter?
- E
  Edward WelchSep 1, 2025
  A DC Bus Voltage Fault on your Huawei Inverter means abnormal external conditions have triggered DC circuit protection. This can happen if the inverter input is suddenly disconnected or shielded PV strings cause a sharp change in output power (Reason ID = 3), or if the input energy can't vent quickly due to a sharp change in grid voltage (Reason ID = 9 or 11). The inverter monitors external conditions and should automatically return to normal once the fault is rectified. If the alarm occurs repeatedly, contact Huawei technical support.
J
Jordan NixonSep 4, 2025
Why is my Huawei SUN2000-8KTL Inverter showing Cabinet Over-Temp?
- S
  Susan ArroyoSep 4, 2025
  If the Huawei Inverter displays 'Cabinet Over-Temp', it means the inverter is installed in a place with poor ventilation. Check if the ambient temperature exceeds the upper limit. If it does, improve ventilation to decrease the temperature.

Huawei SUN2000-8KTL Specifications

General

Max. efficiency	98.6%
European efficiency	98.3%
Max. DC voltage	1100 V
Nominal AC output power	8000 W
Weight	25 kg
Operating temperature range	-25°C to +60°C
Protection rating	IP65
Max. apparent AC power	8800 VA
AC grid frequency	50 Hz / 60 Hz
Starting voltage	200 V
Number of MPPTs	2
Cooling	Natural convection
Maximum DC Input Power	12000 W
Output Frequency	50 Hz / 60 Hz
Nominal AC voltage	230 V
Operating voltage range	200 V - 1000 V
Rated Output Voltage	230 V
MPPT Voltage Range	260 V - 850 V

Summary

About This Document

Purpose

Describes the SUN2000 inverter's installation, connections, commissioning, maintenance, and troubleshooting.

Intended Audience

For photovoltaic (PV) plant operators and qualified electrical technical personnel.

Symbol Conventions

Defines symbols used in the document for safety and notices.

1 Safety Precautions

Personnel Requirements

Specifies that only qualified technicians should operate the SUN2000.

Label Protection

Warns against tampering with warning signs and nameplates on the SUN2000.

Installation Safety

Covers precautions before and during installation, including clearance.

Electrical Connection Safety

Emphasizes safety during electrical connections, compliances, and insulation.

Operation Safety

Highlights high voltage hazards during operation and proper handling.

Maintenance and Replacement Safety

Outlines safety measures before performing maintenance and handling.

2 Overview

2.1 Introduction

Describes the functions, models, and application of the SUN2000 inverter.

Network Application

Explains the SUN2000's role in grid-tied PV power systems.

Power Grid Modes

Details the supported power grid modes for the SUN2000.

2.2 Appearance

Describes the physical appearance and external dimensions of the SUN2000.

2.3 Label Conventions

Explains the meaning of symbols and labels on the SUN2000 and its nameplate.

2.4 Monitoring Panel

Details the components of the monitoring panel (LCD, indicators, buttons).

2.5 Working Principles

Explains the circuit diagrams and working modes of the SUN2000.

3 SUN2000 Storage

Storage Requirements

Provides guidelines for storing the SUN2000 when not immediately deployed.

4 Installation

4.1 Checking Before Installation

Procedures for checking the product and accessories before installation.

4.2 Tools

Lists the necessary tools for installation and cable connections.

4.3 Determining the Installation Position

Requirements for selecting an appropriate installation location.

4.4 Support-mounting the SUN2000

Instructions for mounting the SUN2000 using a support.

4.5 Wall-mounting the SUN2000

Instructions for mounting the SUN2000 on a wall.

5 Electrical Connections

5.1 Connecting PGND Cables

Step-by-step guide to connect protection ground (PGND) cables.

5.2 Connecting AC Output Power Cables

Instructions for connecting AC output power cables to the SUN2000.

5.3 Connecting DC Input Power Cables

Guide for connecting DC input power cables from PV strings.

5.4 Connecting Communications Cables

Details on connecting communication cables (USB and RS485).

5.4.1 Communications Ports

Overview of USB and RS485 communication ports.

5.4.2 Connecting RS485 Communications Cables

Procedures for connecting RS485 communication cables.

6 System Operation

6.1 Checking Before Power-On

Pre-power-on checks for normal SUN2000 operation.

6.2 Powering On the SUN2000

Steps to power on the SUN2000 after electrical connections.

6.3 Setting Initialization Parameters

Guide for setting initial parameters like language, time, and grid code.

7 Man-Machine Interaction

7.1 Monitoring Menu Hierarchy

Describes the menu structure on the SUN2000's LCD.

7.2 Monitoring Operations

How to perform monitoring tasks on the panel.

7.2.1 Viewing System Operating Information

How to view daily, monthly, yearly, and historical energy yields.

7.2.2 Viewing Alarm Records

How to view active and historical alarm records.

7.2.3 Setting System Time

Procedure for setting the system date and time.

7.2.4 Setting the System Language

How to change the display language of the SUN2000.

7.2.5 Setting the Contrast

How to adjust the contrast of the LCD display.

7.2.6 Setting the Currency and Currency Factor

How to set currency and revenue calculation parameters.

7.2.7 Changing a User Password

Procedure for changing user passwords for access control.

7.2.8 Setting Communications Parameters

How to configure RS485 communication settings.

7.2.9 Setting Protection Parameters

How to set various protection parameters for the SUN2000.

7.2.10 Setting Feature Parameters

How to configure feature parameters like LVRT and power limit.

7.2.11 Setting Isolation Parameters

How to set isolation parameters for grounded PV strings.

7.2.12 Manually Starting and Shutting down the SUN2000

How to manually start and stop the SUN2000 via the panel.

7.2.13 Restoring Factory Settings

How to reset all configured parameters to factory defaults.

7.2.14 Enabling USB Guide Functions

How to enable USB functions for firmware upgrades and data export.

7.2.15 Cleaning the User Data

How to clear energy yield data and historical alarms.

7.2.16 Resetting Alarms

How to reset active and historical alarms.

7.2.17 Resetting the System

How to perform a system reset, causing shutdown and restart.

7.2.18 Viewing the System Version

How to view the SUN2000's model, version, and serial number.

8 Maintenance

8.1 Powering Off the SUN2000

Procedures for safely powering off the SUN2000 for maintenance.

8.2 Routine Maintenance

Recommended maintenance schedule and checks for long-term operation.

8.3 Troubleshooting

Measures for rectifying common fault alarms in the SUN2000.

9 SUN2000 Handling

9.1 SUN2000 Removal

Steps for removing the SUN2000 from its installation.

9.2 SUN2000 Packing

Instructions on how to pack the SUN2000 for transport or storage.

9.3 Disposing the SUN2000

Guidelines for disposing of the SUN2000 at the end of its service life.

10 Technical Specifications

Efficiency

Details on maximum and European efficiency ratings for different models.

Input

Technical specifications related to the input parameters of the SUN2000.

Output

Technical specifications related to the output parameters of the SUN2000.

Protection

Lists the protection features supported by different SUN2000 models.

Display and Communication

Specifications for display, communication interfaces, and protocols.

General Data

Physical dimensions, weight, operating conditions, and topology.

A Acronyms and Abbreviations

B Power Grid Codes

Table B-1 Low-voltage power grid codes

Lists low-voltage power grid codes applicable to SUN2000 models.

Table B-2 Medium-voltage power grid codes

Lists medium-voltage power grid codes applicable to SUN2000 models.

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Huawei SUN2000-8KTL User Manual

Table of Contents

Other manuals for Huawei SUN2000-8KTL

Questions and Answers:

Huawei SUN2000-8KTL Specifications

Summary

About This Document

Purpose

Intended Audience

Symbol Conventions

1 Safety Precautions

Personnel Requirements

Label Protection

Installation Safety

Electrical Connection Safety

Operation Safety

Maintenance and Replacement Safety

2 Overview

2.1 Introduction

Network Application

Power Grid Modes

2.2 Appearance

2.3 Label Conventions

2.4 Monitoring Panel

2.5 Working Principles

3 SUN2000 Storage

Storage Requirements

4 Installation

4.1 Checking Before Installation

4.2 Tools

4.3 Determining the Installation Position

4.4 Support-mounting the SUN2000

4.5 Wall-mounting the SUN2000

5 Electrical Connections

5.1 Connecting PGND Cables

5.2 Connecting AC Output Power Cables

5.3 Connecting DC Input Power Cables

5.4 Connecting Communications Cables

5.4.1 Communications Ports

5.4.2 Connecting RS485 Communications Cables

6 System Operation

6.1 Checking Before Power-On

6.2 Powering On the SUN2000

6.3 Setting Initialization Parameters

7 Man-Machine Interaction

7.1 Monitoring Menu Hierarchy

7.2 Monitoring Operations

7.2.1 Viewing System Operating Information

7.2.2 Viewing Alarm Records

7.2.3 Setting System Time

7.2.4 Setting the System Language

7.2.5 Setting the Contrast

7.2.6 Setting the Currency and Currency Factor

7.2.7 Changing a User Password

7.2.8 Setting Communications Parameters

7.2.9 Setting Protection Parameters

7.2.10 Setting Feature Parameters

7.2.11 Setting Isolation Parameters

7.2.12 Manually Starting and Shutting down the SUN2000

7.2.13 Restoring Factory Settings

7.2.14 Enabling USB Guide Functions

7.2.15 Cleaning the User Data

7.2.16 Resetting Alarms

7.2.17 Resetting the System

7.2.18 Viewing the System Version

8 Maintenance

8.1 Powering Off the SUN2000

8.2 Routine Maintenance

8.3 Troubleshooting

9 SUN2000 Handling

9.1 SUN2000 Removal

9.2 SUN2000 Packing

9.3 Disposing the SUN2000

10 Technical Specifications

Efficiency

Input

Output

Protection

Display and Communication

General Data