Huawei SUN2000-3KTL-M1 User Manual (English)

Other manuals for Huawei SUN2000-3KTL-M1

Questions and Answers:

J
jose24Aug 23, 2025
What to do about grid undervoltage on Huawei Controller?
- S
  Stephen HobbsAug 23, 2025
  A grid undervoltage alarm on the Huawei Controller means the grid voltage is below the lower threshold. Here's what you can do: 1. If the alarm is occasional, it might be a temporary grid issue, and the SUN2000 should recover automatically. 2. If the alarm persists, check if the grid voltage is within the acceptable range. If not, contact your local power operator. If it is, you can modify the grid undervoltage protection threshold (with the power operator's consent) using the mobile app, SmartLogger, or NMS. 3. If the alarm continues, inspect the connection between the AC circuit breaker and the output power cable.
A
Andrea CoffeyAug 25, 2025
How to troubleshoot grid overvoltage on Huawei Controller?
- A
  Angela MyersAug 25, 2025
  A grid overvoltage alarm on your Huawei Controller indicates that the grid voltage exceeds the upper threshold. Try these steps: 1. If the alarm is occasional, it could be a temporary grid issue. The SUN2000 should recover automatically once the grid stabilizes. 2. If the alarm persists, verify that the grid voltage is within the acceptable range. If it's not, contact your local power operator. If it is within range, you can adjust the grid overvoltage protection threshold using the mobile app, SmartLogger, or NMS, but only with the consent of the local power operator. 3. Also, check for peak voltage issues on the power grid; if the problem persists, contact the power operator.
J
jeremy44Aug 25, 2025
What to do if Huawei Controller reports grid loss?
- R
  Randall HeathAug 26, 2025
  If the Huawei Controller displays a grid loss alarm, it means a power grid outage has occurred, or the AC circuit is disconnected, or the AC switch is off. The alarm should clear automatically once the power grid recovers. You can also check if the AC circuit is disconnected or if the AC switch is turned off.
E
Eric OwenAug 27, 2025
How to fix high string input voltage on Huawei Controller?
- A
  Ashley LewisAug 27, 2025
  The high string input voltage on your Huawei Controller indicates that the PV array is not properly configured. Too many PV modules are connected in series, causing the PV string open-circuit voltage to exceed the maximum operating voltage. To resolve this, reduce the number of PV modules connected in series until the PV string open-circuit voltage is within the acceptable range. The alarm should disappear once corrected.
L
latoya09Aug 27, 2025
What to do if Huawei Controller shows string reverse connection?
- B
  Benjamin LongAug 27, 2025
  The 'String reverse connection' error on your Huawei Controller indicates that the PV string polarity is reversed. To fix this, check if the PV string is connected in reverse. If it is, wait until the PV string current drops below 0.5 A, then turn off the DC switch and correct the PV string polarity.
K
Kelly ThomasAug 28, 2025
How to resolve DC arc fault on Huawei Controller?
- T
  Todd ThompsonAug 28, 2025
  If your Huawei Controller is showing a DC arc fault, it means the PV string power cables are arcing or have poor contact. Check the PV string cables to ensure they are properly connected and not arcing.
T
Terry AllenAug 29, 2025
What causes grid overfrequency on Huawei Controller?
- H
  Henry PetersonAug 29, 2025
  A grid overfrequency alarm on the Huawei Controller indicates that the power grid frequency is higher than the requirements for the local power grid code. Here's what to do: 1. If the alarm occurs occasionally, the power grid may be temporarily abnormal, and the SUN2000 should recover automatically. 2. If the alarm persists, verify that the power grid frequency is within the acceptable range. If it is not, contact your local power operator. If it is within range, you can modify the grid overfrequency protection threshold through the app, SmartLogger, or NMS, but only with the consent of the local power operator.
N
Nicholas CooperAug 30, 2025
How to fix grid underfrequency on Huawei Controller?
- C
  Cassandra SextonAug 30, 2025
  A grid underfrequency alarm on the Huawei Controller indicates that the power grid frequency is lower than the requirements for the local power grid code. Here's how to address it: 1. If the alarm is occasional, the power grid may be temporarily abnormal, and the SUN2000 should recover automatically. 2. If the alarm persists, check whether the power grid frequency is within the acceptable range. If not, contact the local power operator. If it is, you can modify the grid underfrequency protection threshold using the app, SmartLogger, or NMS, but only with the consent of the local power operator.
S
sanchezfeliciaAug 31, 2025
What causes string current backfeed in Huawei Controller?
- G
  gcookSep 1, 2025
  String current backfeed on your Huawei Controller means the number of PV modules connected in series is insufficient, causing the end voltage to be lower than other strings. Here's how to troubleshoot: 1. Check if the number of PV modules connected in series to this PV string is less than that of other PV strings connected in parallel. If so, wait until the PV string current decreases below 0.5 A, then turn off the DC switch and adjust the number of PV modules in the PV string. 2. Check if the PV string is shaded. 3. Check if the open-circuit voltage of the PV string is abnormal.
S
smithjonathanSep 1, 2025
Why is the grid frequency unstable on my Huawei Controller?
- K
  Kristina MeyerSep 2, 2025
  An unstable grid frequency alarm on the Huawei Controller indicates the power grid frequency change rate doesn't meet local power grid code requirements. Here's what you can do: 1. If the alarm is occasional, it may be a temporary grid issue, and the SUN2000 should recover automatically. 2. If the alarm persists, check whether the power grid frequency is within the acceptable range. If not, contact the local power operator.

Huawei SUN2000-3KTL-M1 Specifications

General

Model	SUN2000-3KTL-M1
Type	String Inverter
Max. DC Input Voltage	600 V
MPPT Voltage Range	90 V - 560 V
Rated AC Output Power	3000 W
Max. AC Output Power	3300 W
Nominal AC Voltage	220 V / 230 V / 240 V
AC Voltage Range	180 V - 280 V
AC Output Frequency	50 Hz / 60 Hz
Max. Efficiency	98.6%
MPPT Trackers	2
DC Inputs per MPPT	1
Max. Input Current per MPPT	11 A
Operating Temperature Range	-25°C to +60°C
Cooling Method	Natural Convection
Protection Degree	IP65
Max. DC Input Power	4500 W
Communication	RS485
Dimensions (W x H x D)	365 mm x 365 mm x 156 mm

Summary

About This Document

Overview

Describes the SUN2000 inverter's scope, features, functions, and safety precautions.

Intended Audience

Identifies personnel for whom this document is applicable, including installers and users.

Symbol Conventions

Defines the meaning of symbols used in the document, such as Danger, Warning, and Caution.

Change History

Safety Information

General Safety

Provides essential safety statements, warnings, and guidelines for operating and maintaining the equipment safely.

Personnel Requirements

Specifies the necessary qualifications, training, and experience for personnel involved in installation and maintenance.

Electrical Safety

Outlines critical electrical safety precautions, including grounding, AC/DC power handling, and cable connections.

Installation Environment Requirements

Defines the necessary environmental conditions for safe and optimal installation and operation of the SUN2000.

Mechanical Safety

Covers safety precautions related to mechanical operations, such as using ladders and handling heavy objects.

Commissioning

Details the procedures and precautions for the initial power-on and parameter setting of the equipment.

Maintenance and Replacement

Provides safety guidelines for performing maintenance tasks and replacing components on the SUN2000.

Overview

Product Introduction

Introduces the SUN2000 inverter, its functions, and the different models covered in the document.

Appearance

Details the physical components and indicators of the SUN2000, including port descriptions and LED indicators.

Label Description

Explains the various labels and markings on the equipment, such as warning labels and serial number information.

Working Principles

Describes the internal workings of the SUN2000, including circuit diagrams and operating modes.

Storage

Installation

Checking Before Installation

Guides users on inspecting outer packing materials and package contents before proceeding with the installation.

Tools

Lists the essential tools required for the installation of the SUN2000, categorized into installation and PPE tools.

Determining the Installation Position

Covers environment and space requirements, including ventilation, material compatibility, and clearance for installation.

Moving the SUN2000

Provides instructions and precautions for safely moving the SUN2000 unit from its packaging to the installation location.

Installing the Mounting Bracket

Details the procedure for installing the mounting bracket, including wall-mounted and support-mounted methods.

Electrical Connections

Installation Preparation

Outlines preliminary steps and component descriptions necessary before making electrical connections.

Connecting the PE cable

Explains the procedure for securely connecting the protective earth (PE) cable, including important safety notes.

Connecting the AC Output Power Cable

Details how to connect the AC output power cable, including precautions and stripping requirements.

Installing DC input power cables

Provides instructions for connecting DC input power cables, including warnings about voltage and polarity.

(Optional) Connecting Battery Cables

Describes the procedure for connecting battery cables, including prerequisites and safety warnings.

Install the Smart Dongle

Guides on installing different types of Smart Dongles (WLAN-FE and 4G) for communication.

(Optional) Connecting the Signal Cable

Explains how to connect signal cables, including COM port pin definitions and networking scenarios.

Commissioning

Checking Before Power-On

Provides a checklist of items to verify before powering on the SUN2000 for the first time.

SUN2000 power-on

Details the step-by-step procedure for powering on the SUN2000, including checking indicators and switches.

Man-Machine Interaction

App Commissioning

Guides on using the FusionSolar app for device commissioning, including downloading, registration, and layout setup.

Parameters Settings

Explains how to configure various parameters like energy control, AFCI, and IPS checks via the app or system.

SmartLogger Networking Scenario

Describes how to set up networking scenarios involving SmartLogger for data collection and monitoring.

Maintenance

SUN2000 Power-Off

Details the procedure and safety precautions for safely powering off the SUN2000 unit.

Routine Maintenance

Outlines the recommended schedule and methods for performing routine checks and maintenance on the SUN2000.

Troubleshooting

Provides a comprehensive list of common faults, their causes, severity, and solutions for diagnosing and fixing issues.

Handling the Inverter

Removing the SUN2000

Describes the steps and precautions required to safely remove the SUN2000 from its mounting bracket.

Packing the SUN2000

Provides instructions on how to properly pack the SUN2000 unit for storage or transportation.

Disposing of the SUN2000

Gives guidance on the proper disposal of the SUN2000 unit at the end of its service life.

Technical Specifications

SUN2000 Technical Specifications

Presents detailed technical data for the SUN2000 inverters, including efficiency, input, and output parameters.

Optimizer Technical Specifications

Lists the technical specifications for the optional Smart PV Optimizer, covering its performance and input/output characteristics.

Grid Code

Device Commissioning

Access Device Commissioning Screen

Details how to access the device commissioning interface on the FusionSolar app, with methods for connected and unconnected states.

Connect to Solar Inverter WLAN and Log In

Explains the steps to establish a WLAN connection to the SUN2000 and log in as an installer user.

Resetting Password

Rapid Shutdown

Locating Insulation Resistance Faults

Acronyms and Abbreviations

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Huawei SUN2000-3KTL-M1 User Manual

Table of Contents

Other manuals for Huawei SUN2000-3KTL-M1

Questions and Answers:

Huawei SUN2000-3KTL-M1 Specifications

Summary

About This Document

Overview

Intended Audience

Symbol Conventions

Change History

Safety Information

General Safety

Personnel Requirements

Electrical Safety

Installation Environment Requirements

Mechanical Safety

Commissioning

Maintenance and Replacement

Overview

Product Introduction

Appearance

Label Description

Working Principles

Storage

Installation

Checking Before Installation

Tools

Determining the Installation Position

Moving the SUN2000

Installing the Mounting Bracket

Electrical Connections

Installation Preparation

Connecting the PE cable

Connecting the AC Output Power Cable

Installing DC input power cables

(Optional) Connecting Battery Cables

Install the Smart Dongle

(Optional) Connecting the Signal Cable

Commissioning

Checking Before Power-On

SUN2000 power-on

Man-Machine Interaction

App Commissioning

Parameters Settings

SmartLogger Networking Scenario

Maintenance

SUN2000 Power-Off

Routine Maintenance

Troubleshooting

Handling the Inverter

Removing the SUN2000

Packing the SUN2000

Disposing of the SUN2000

Technical Specifications

SUN2000 Technical Specifications

Optimizer Technical Specifications

Grid Code

Device Commissioning

Access Device Commissioning Screen

Connect to Solar Inverter WLAN and Log In

Resetting Password

Rapid Shutdown

Locating Insulation Resistance Faults

Acronyms and Abbreviations

Related product manuals