HUAWEI SUN2000-36KTL-M3, SUN2000-30KTL-M3, SUN2000-40KTL-M3 User guide

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3

User Manual

Issue 13

Date 2023-04-28

HUAWEI TECHNOLOGIES CO., LTD.

No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specied in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every eort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang Shenzhen 518129 People's Republic of China

Website: https://e.huawei.com

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual About This Document

About This Document

Overview

This document describes the SUN2000-20KTL-M3, SUN2000-29.9KTL-M3, SUN2000-30KTL-M3, SUN2000-36KTL-M3, and SUN2000-40KTL-M3 (also referred to as SUN2000) in terms of their installation, electrical connections, commissioning, maintenance, and troubleshooting. Before installing and operating the SUN2000, ensure that you are familiar with the features, functions, and safety precautions provided in this document.

Intended Audience

This document is applicable to:

● Installers

● Users

Symbol Conventions

The symbols that may be found in this document are

Symbol

dened as follows.

Description

Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.

Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.

Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results.

NOTICE is used to address practices not related to personal injury.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual About This Document

Symbol Description

Supplements the important information in the main text.

NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

Change History

Changes between document issues are cumulative. The latest document issue contains all changes made in earlier issues.

Issue 13 (2023-04-28)

Updated A Grid Codes.

Added K Locating Insulation Resistance Faults.

Updated L Contact Information.

Issue 12 (2023-02-28)

Updated 2.1 Product Introduction.

Updated 5.2 Preparing Cables.

Updated 5.6 (Optional) Installing the Smart Dongle.

Updated 10 Technical

Issue 11 (2023-01-10)

Updated 1 Safety Information.

Updated 2.3 Label Description.

Updated 4.2 Tool Preparation.

Updated 7 Man-Machine Interaction.

Updated 8.3 Troubleshooting.

Specications.

Updated 10 Technical

Added L Contact Information.

Specications.

Issue 10 (2022-09-26)

Updated 5.2 Preparing Cables.

Updated 5.4 Connecting the AC Output Power Cable.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual About This Document

Issue 09 (2022-06-30)

Updated 5.2 Preparing Cables.

Updated 5.5 Installing the DC Input Power Cable.

Updated 5.7.1 Communication Modes.

Updated 7 Man-Machine Interaction.

Updated 7.1.3 SmartLogger Networking Scenario.

Updated 8.3 Troubleshooting.

Updated 10 Technical

Added I PV String Access Detection.

Issue 08 (2022-04-14)

Updated 5.2 Preparing Cables.

Updated 5.7.1 Communication Modes.

Updated D Rapid Shutdown.

Issue 07 (2022-01-30)

Updated 4.3 Selecting an Installation Position.

Updated 8.2 Routine Maintenance.

Issue 06 (2022-01-04)

Updated 5.2 Preparing Cables.

Updated 7.1.2 Creating a PV Plant and a User.

Updated 7.3.1 Grid-tied Point Control.

Specications.

Updated 7.3.2 Apparent Power Control on the Inverter Output Side.

Updated 10 Technical

Updated A Grid Codes.

Specications.

Issue 05 (2021-11-25)

Updated 5.4 Connecting the AC Output Power Cable.

Issue 04 (2021-07-25)

Updated 5.2 Preparing Cables.

Updated 10 Technical

Specications.

Issue 03 (2021-04-15)

Updated 2.1 Product Introduction.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual About This Document

Updated 5.2 Preparing Cables.

Updated 5.5 Installing the DC Input Power Cable.

Updated 10 Technical Specications.

Issue 02 (2020-11-20)

Updated 2.3 Label Description.

Updated 4.3 Selecting an Installation Position.

Updated 5.2 Preparing Cables.

Updated 5.7.1 Communication Modes.

Updated 10 Technical

Issue 01 (2020-10-15)

This issue is the

Specications.

rst ocial release.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual Contents

About This Document................................................................................................................ ii

1 Safety Information.................................................................................................................. 1

1.1 Personal Safety.........................................................................................................................................................................2

1.2 Electrical Safety........................................................................................................................................................................4

1.3 Environment Requirements................................................................................................................................................. 6

1.4 Mechanical Safety................................................................................................................................................................... 8

2 Overview................................................................................................................................. 13

2.1 Product Introduction............................................................................................................................................................ 13

2.2 Appearance............................................................................................................................................................................. 15

2.3 Label Description.................................................................................................................................................................. 16

2.4 Working Principles................................................................................................................................................................ 18

2.4.1 Circuit Diagram.................................................................................................................................................................. 18

2.4.2 Working Modes.................................................................................................................................................................. 18

3 SUN2000 Storage...................................................................................................................20

4 Installation..............................................................................................................................21

4.1 Checking Before Installation............................................................................................................................................. 21

4.2 Tool Preparation.................................................................................................................................................................... 22

4.3 Selecting an Installation Position.................................................................................................................................... 23

4.4 Moving the SUN2000.......................................................................................................................................................... 27

4.5 Installing the Mounting Bracket...................................................................................................................................... 28

4.5.1 Support-mounted Installation.......................................................................................................................................29

4.5.2 Wall-mounted Installation............................................................................................................................................. 30

4.6 Installing a SUN2000........................................................................................................................................................... 31

5 Electrical Connections.......................................................................................................... 33

5.1 Precautions.............................................................................................................................................................................. 33

5.2 Preparing Cables................................................................................................................................................................... 34

5.3 Connecting the PE Cable.................................................................................................................................................... 37

5.4 Connecting the AC Output Power Cable...................................................................................................................... 39

5.5 Installing the DC Input Power Cable.............................................................................................................................. 44

5.5.1 Cable Connection Description....................................................................................................................................... 44

5.5.2 Connecting Cables to Amphenol Helios H4 Connectors......................................................................................46

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual Contents

5.5.3 Connecting Cables to Staubli MC4 Connectors...................................................................................................... 47

5.6 (Optional) Installing the Smart Dongle........................................................................................................................ 49

5.7 Connecting the Signal Cable............................................................................................................................................. 51

5.7.1 Communication Modes................................................................................................................................................... 54

5.7.2 (Optional) Connecting the RS485 Communications Cable to the SUN2000............................................... 56

5.7.3 (Optional) Connecting the RS485 Communications Cable to the Power Meter.........................................57

5.7.4 (Optional) Connecting the Power Grid Scheduling Signal Cable..................................................................... 58

5.7.5 (Optional) Connecting the Rapid Shutdown Signal Cable................................................................................. 59

6 Commissioning.......................................................................................................................60

6.1 Checking Before Power-On................................................................................................................................................60

6.2 System Power-On................................................................................................................................................................. 61

7 Man-Machine Interaction....................................................................................................63

7.1 Scenario in Which SUN2000s Are Connected to the FusionSolar Smart PV Management System.........64

7.1.1 (Optional) Registering an Installer Account............................................................................................................ 64

7.1.2 Creating a PV Plant and a User.................................................................................................................................... 65

7.1.3 SmartLogger Networking Scenario............................................................................................................................. 65

7.2 Scenario in Which SUN2000s Are Connected to Other Management Systems..............................................66

7.3 Energy Control....................................................................................................................................................................... 66

7.3.1 Grid-tied Point Control.................................................................................................................................................... 66

7.3.2 Apparent Power Control on the Inverter Output Side..........................................................................................71

8 Maintenance...........................................................................................................................72

8.1 System Power-O.................................................................................................................................................................72

8.2 Routine Maintenance.......................................................................................................................................................... 73

8.3 Troubleshooting..................................................................................................................................................................... 74

9 Handling the Inverter...........................................................................................................88

9.1 Removing the SUN2000..................................................................................................................................................... 88

9.2 Packing the SUN2000..........................................................................................................................................................88

9.3 Disposing of the SUN2000................................................................................................................................................ 88

10 Technical

Specications.....................................................................................................89

A Grid Codes...............................................................................................................................99

B Device Commissioning....................................................................................................... 112

C Built-in PID Recovery......................................................................................................... 115

D Rapid Shutdown................................................................................................................. 116

E NS Protection....................................................................................................................... 117

F Resetting Password.............................................................................................................118

G Setting Dry Contact Scheduling Parameters................................................................119

H AFCI........................................................................................................................................120

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual Contents

I PV String Access Detection................................................................................................ 122

J Smart I-V Curve Diagnosis................................................................................................. 125

K Locating Insulation Resistance Faults........................................................................... 126

L Contact Information........................................................................................................... 129

M Acronyms and Abbreviations.......................................................................................... 131

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

1 Safety Information

Statement

Before transporting, storing, installing, operating, using, and/or maintaining the equipment, read this document, strictly follow the instructions provided herein, and follow all the safety instructions on the equipment and in this document. In this document, "equipment" refers to the products, software,

components, spare parts, and/or services related to this document; "the Company" refers to the manufacturer (producer), seller, and/or service provider of the equipment; "you" refers to the entity that transports, stores, installs, operates, uses, and/or maintains the equipment.

The Danger, Warning, Caution, and Notice statements described in this document do not cover all the safety precautions. You also need to comply with relevant international, national, or regional standards and industry practices. The

Company shall not be liable for any consequences that may arise due to violations of safety requirements or safety standards concerning the design, production, and usage of the equipment.

The equipment should be used in an environment that meets the design specications. Otherwise, the equipment may be faulty, malfunctioning, or damaged, which is not covered under the warranty. The Company shall not be liable for any property loss, personal injury, or even death caused thereby.

Comply with applicable laws, regulations, standards, and specications during transportation, storage, installation, operation, use, and maintenance.

Do not perform reverse engineering, decompilation, disassembly, adaptation, implantation, or other derivative operations on the equipment software. Do not study the internal implementation logic of the equipment, obtain the source code of the equipment software, violate intellectual property rights, or disclose any of the performance test results of the equipment software.

The Company shall not be liable for any of the following circumstances or their consequences:

● The equipment is damaged due to force majeure such as earthquakes, volcanic eruptions, debris ows, lightning strikes, res, wars, armed conicts, typhoons, hurricanes, tornadoes, and other extreme weather conditions.

oods,

● The equipment is operated beyond the conditions

specied in this document.

D ANGER

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

● The equipment is installed or used in environments that do not comply with international, national, or regional standards.

● The equipment is installed or used by unqualied personnel.

● You fail to follow the operation instructions and safety precautions on the product and in the document.

● You remove or modify the product or modify the software code without authorization.

● You or a third party authorized by you cause the equipment damage during transportation.

● The equipment is damaged due to storage conditions that do not meet the requirements

● You fail to prepare materials and tools that comply with local laws, regulations, and related standards.

● The equipment is damaged due to your or a third party's negligence, intentional breach, gross negligence, or improper operations, or other reasons not related to the Company.

specied in the product document.

1.1 Personal Safety

Ensure that power is o during installation. Do not install or remove a cable with power on. Transient contact between the core of the cable and the conductor will generate electric arcs or sparks, which may cause a re or personal injury.

Non-standard and improper operations on the energized equipment may cause re, electric shocks, or explosion, resulting in property damage, personal injury, or even death.

Before operations, remove conductive objects such as watches, bracelets, bangles, rings, and necklaces to prevent electric shocks.

During operations, use dedicated insulated tools to prevent electric shocks or short circuits. The dielectric withstanding voltage level must comply with local laws, regulations, standards, and

specications.

WARNING

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

During operations, wear personal protective equipment such as protective clothing, insulated shoes, goggles, safety helmets, and insulated gloves.

Figure 1-1 Personal protective equipment

General Requirements

● Do not stop protective devices. Pay attention to the warnings, cautions, and related precautionary measures in this document and on the equipment.

● If there is a likelihood of personal injury or equipment damage during operations, immediately stop, report the case to the supervisor, and take feasible protective measures.

● Do not power on the equipment before it is installed or professionals.

● Do not touch the power supply equipment directly or with conductors such as damp objects. Before touching any conductor surface or terminal, measure the voltage at the contact point to ensure that there is no risk of electric shock.

● Do not touch operating equipment because the enclosure is hot.

● Do not touch a running fan with your hands, components, screws, tools, or boards. Otherwise, personal injury or equipment damage may occur.

● In the case of a and activate the re alarm or call emergency services. Do not enter the aected building or equipment area under any circumstances.

Personnel Requirements

conrmed by

re, immediately leave the building or the equipment area

● Only professionals and trained personnel are allowed to operate the equipment.

– Professionals: personnel who are familiar with the working principles and

structure of the equipment, trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation, operation, maintenance

D ANGER

WARNING

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

– Trained personnel: personnel who are trained in technology and safety,

have required experience, are aware of possible hazards on themselves in certain operations, and are able to take protective measures to minimize the hazards on themselves and other people

● Personnel who plan to install or maintain the equipment must receive adequate training, be able to correctly perform all operations, and understand all necessary safety precautions and local relevant standards.

● Only

● Personnel who will perform special tasks such as electrical operations,

● Only authorized professionals are allowed to replace the equipment or

● Only personnel who need to work on the equipment are allowed to access

qualied professionals or trained personnel are allowed to install,

operate, and maintain the equipment.

qualied professionals are allowed to remove safety facilities and inspect

the equipment.

working at heights, and operations of special equipment must possess the required local

components (including software).

the equipment.

1.2 Electrical Safety

Before connecting cables, ensure that the equipment is intact. Otherwise, electric shocks or re may occur.

qualications.

Non-standard and improper operations may result in re or electric shocks.

Prevent foreign matter from entering the equipment during operations. Otherwise, equipment damage, load power derating, power failure, or personal injury may occur.

For the equipment that needs to be grounded, install the ground cable rst when installing the equipment and remove the ground cable last when removing the equipment.

CA UTION

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

Do not route cables near the air intake or exhaust vents of the equipment.

General Requirements

● Follow the procedures described in the document for installation, operation, and maintenance. Do not reconstruct or alter the equipment, add components, or change the installation sequence without permission.

● Obtain approval from the national or local electric utility company before connecting the equipment to the grid.

● Observe the power plant safety regulations, such as the operation and work ticket mechanisms.

● Install temporary fences or warning ropes and hang "No Entry" signs around the operation area to keep unauthorized personnel away from the area.

● Before installing or removing power cables, turn equipment and its upstream and downstream switches.

● Before performing operations on the equipment, check that all tools meet the requirements and record the tools. After the operations are complete, collect all of the tools to prevent them from being left inside the equipment.

● Before installing power cables, check that cable labels are correct and cable terminals are insulated.

● When installing the equipment, use a torque tool of a proper measurement range to tighten the screws. When using a wrench to tighten the screws, ensure that the wrench does not tilt and the torque error does not exceed 10% of the

specied value.

● Ensure that bolts are tightened with a torque tool and marked in red and blue after double-check. Installation personnel mark tightened bolts in blue. Quality inspection personnel

conrm that the bolts are tightened and then

mark them in red. (The marks should cross the edges of the bolts.)

o the switches of the

● If the equipment has multiple inputs, disconnect all the inputs before operating the equipment.

● Before maintaining a downstream electrical or power distribution device, turn o the output switch on the power supply equipment.

● During equipment maintenance, attach "Do not switch on" labels near the upstream and downstream switches or circuit breakers as well as warning signs to prevent accidental connection. The equipment can be powered on only after troubleshooting is complete.

● Do not open equipment panels.

● Check equipment connections periodically, ensuring that all screws are securely tightened.

● Only

qualied professionals can replace a damaged cable.

● Do not scrawl, damage, or block any labels or nameplates on the equipment. Promptly replace labels that have worn out.

D ANGER

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

● Do not use solvents such as water, alcohol, or oil to clean electrical components inside or outside of the equipment.

Grounding

● Ensure that the grounding impedance of the equipment complies with local electrical standards.

● Ensure that the equipment is connected permanently to the protective ground. Before operating the equipment, check its electrical connection to ensure that it is reliably grounded.

● Do not work on the equipment in the absence of a properly installed ground conductor.

● Do not damage the ground conductor.

Cabling Requirements

● When selecting, installing, and routing cables, follow local safety regulations and rules.

● When routing power cables, ensure that there is no coiling or twisting. Do not join or weld power cables. If necessary, use a longer cable.

● Ensure that all cables are properly connected and insulated, and meet

specications.

● Ensure that the slots and holes for routing cables are free from sharp edges, and that the positions where cables are routed through pipes or cable holes are equipped with cushion materials to prevent the cables from being damaged by sharp edges or burrs.

● Ensure that cables of the same type are bound together neatly and straight and that the cable sheath is intact. When routing cables of ensure that they are away from each other without entanglement and overlapping.

● Secure buried cables using cable supports and cable clips. Ensure that the cables in the cable deformation or damage during

● If the external conditions (such as the cable layout or ambient temperature) change, verify the cable usage in accordance with the IEC-60364-5-52 or local laws and regulations. For example, check that the current-carrying capacity meets requirements.

● When routing cables, reserve at least 30 mm clearance between the cables and heat-generating components or areas. This prevents deterioration or damage to the cable insulation layer.

backll area are in close contact with the ground to prevent

backlling.

dierent types,

1.3 Environment Requirements

Do not expose the equipment to ammable or explosive gas or smoke. Do not perform any operation on the equipment in such environments.

D ANGER

WARNING

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

Do not store any ammable or explosive materials in the equipment area.

Do not place the equipment near heat sources or re sources, such as smoke, candles, heaters, or other heating devices. Overheat may damage the equipment or cause a

re.

Install the equipment in an area far away from liquids. Do not install it under areas prone to condensation, such as under water pipes and air exhaust vents, or areas prone to water leakage, such as air conditioner vents, ventilation vents, or feeder windows of the equipment room. Ensure that no liquid enters the equipment to prevent faults or short circuits.

To prevent damage or re due to high temperature, ensure that the ventilation vents or heat dissipation systems are not obstructed or covered by other objects while the equipment is running.

General Requirements

● Ensure that the equipment is stored in a clean, dry, and well ventilated area with proper temperature and humidity and is protected from dust and condensation.

● Keep the installation and operating environments of the equipment within the allowed ranges. Otherwise, its performance and safety will be compromised.

● Do not install, use, or operate outdoor equipment and cables (including but not limited to moving equipment, operating equipment and cables, inserting connectors to or removing connectors from signal ports connected to outdoor facilities, working at heights, performing outdoor installation, and opening doors) in harsh weather conditions such as lightning, rain, snow, and level 6 or stronger wind.

● Do not install the equipment in an environment with dust, smoke, volatile or corrosive gases, infrared and other radiations, organic solvents, or salty air.

● Do not install the equipment in an environment with conductive metal or magnetic dust.

● Do not install the equipment in an area conducive to the growth of microorganisms such as fungus or mildew.

● Do not install the equipment in an area with strong vibration, noise, or electromagnetic interference.

WARNING

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

● Ensure that the site complies with local laws, regulations, and related standards.

● Ensure that the ground in the installation environment is solid, free from spongy or soft soil, and not prone to subsidence. The site must not be located in a low-lying land prone to water or snow accumulation, and the horizontal level of the site must be above the highest water level of that area in history.

● Do not install the equipment in a position that may be submerged in water.

● If the equipment is installed in a place with abundant vegetation, in addition to routine weeding, harden the ground underneath the equipment using cement or gravel (recommended area: 3 m x 2.5 m).

● Do not install the equipment outdoors in salt-aected areas because it may be corroded. A coast or prone to sea breeze. Regions prone to sea breeze vary with weather conditions (such as typhoons and monsoons) or terrains (such as dams and hills).

● Before opening doors during the installation, operation, and maintenance of the equipment, clean up any water, ice, snow, or other foreign objects on the top of the equipment to prevent foreign objects from falling into the equipment.

● When installing the equipment, ensure that the installation surface is solid enough to bear the weight of the equipment.

● After installing the equipment, remove the packing materials such as cartons, foam, plastics, and cable ties from the equipment area.

salt-aected area refers to the region within 500 m of the

1.4 Mechanical Safety

Ensure that all necessary tools are ready and inspected by a professional organization. Do not use tools that have signs of scratches or fail to pass the inspection or whose inspection validity period has expired. Ensure that the tools are secure and not overloaded.

Do not drill holes into the equipment. Doing so may aect the sealing performance and electromagnetic containment of the equipment and damage components or cables inside. Metal shavings from drilling may short-circuit boards inside the equipment.

General Requirements

● Repaint any paint scratches caused during equipment transportation or installation in a timely manner. Equipment with scratches cannot be exposed for an extended period of time.

● Do not perform operations such as arc welding and cutting on the equipment without evaluation by the Company.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

● Do not install other devices on the top of the equipment without evaluation by the Company.

● When performing operations over the top of the equipment, take measures to protect the equipment against damage.

● Use correct tools and operate them in the correct way.

Moving Heavy Objects

● Be cautious to prevent injury when moving heavy objects.

● If multiple persons need to move a heavy object together, determine the manpower and work division with consideration of height and other conditions to ensure that the weight is equally distributed.

● If two persons or more move a heavy object together, ensure that the object is lifted and landed simultaneously and moved at a uniform pace under the supervision of one person.

● Wear personal protective gears such as protective gloves and shoes when manually moving the equipment.

● To move an object by hand, approach to the object, squat down, and then lift the object gently and stably by the force of the legs instead of your back. Do not lift it suddenly or turn your body around.

● Do not quickly lift a heavy object above your waist. Place the object on a workbench that is half-waist high or any other appropriate place, adjust the positions of your palms, and then lift it.

● Move a heavy object stably with balanced force at an even and low speed. Put down the object stably and slowly to prevent any collision or drop from scratching the surface of the equipment or damaging the components and cables.

● When moving a heavy object, be aware of the workbench, slope, staircase, and slippery places. When moving a heavy object through a door, ensure that the door is wide enough to move the object and avoid bumping or injury.

● When transferring a heavy object, move your feet instead of turning your waist around. When lifting and transferring a heavy object, ensure that your feet point to the target direction of movement.

● When transporting the equipment using a pallet truck or forklift, ensure that the tynes are properly positioned so that the equipment does not topple. Before moving the equipment, secure it to the pallet truck or forklift using ropes. When moving the equipment, assign dedicated personnel to take care of it.

● Choose sea or roads in good conditions for transportation as transportation by railway or air is not supported. Avoid tilt or jolt during transportation.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

Using Ladders

● Use wooden or insulated ladders when you need to perform live-line working at heights.

● Platform ladders with protective rails are preferred. Single ladders are not recommended.

● Before using a ladder, check that it is intact and capacity. Do not overload it.

● Ensure that the ladder is securely positioned and held rm.

conrm its load bearing

● When climbing up the ladder, keep your body stable and your center of gravity between the side rails, and do not overreach to the sides.

● When a step ladder is used, ensure that the pull ropes are secured.

● If a single ladder is used, the recommended angle for the ladder against the oor is 75 degrees, as shown in the following gure. A square can be used to measure the angle.

● If a single ladder is used, ensure that the wider end of the ladder is at the bottom, and take protective measures to prevent the ladder from sliding.

● If a single ladder is used, do not climb higher than the fourth rung of the ladder from the top.

● If you use a single ladder to climb up to a platform, ensure that the ladder is at least 1 m higher than the platform.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

Hoisting

● Only trained and qualied personnel are allowed to perform hoisting operations.

● Install temporary warning signs or fences to isolate the hoisting area.

● Ensure that the foundation where hoisting is performed on meets the loadbearing requirements.

● Before hoisting objects, ensure that hoisting tools are xed object or wall that meets the load-bearing requirements.

● During hoisting, do not stand or walk under the crane or the hoisted objects.

● Do not drag steel ropes and hoisting tools or bump the hoisted objects against hard objects during hoisting.

● Ensure that the angle between two hoisting ropes is no more than 90 degrees, as shown in the following gure.

rmly secured onto a

Drilling Holes

● Obtain consent from the customer and contractor before drilling holes.

● Wear protective equipment such as safety goggles and protective gloves when drilling holes.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 1 Safety Information

● To avoid short circuits or other risks, do not drill holes into buried pipes or cables.

● When drilling holes, protect the equipment from shavings. After drilling, clean up any shavings.

NO TE

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

2 Overview

2.1 Product Introduction

Function

Model

The SUN2000 inverter is a three-phase grid-tied PV string inverter that converts the DC power generated by PV strings into AC power and feeds the power into the power grid.

This document covers the following SUN2000 models:

● SUN2000-20KTL-M3

● SUN2000-29.9KTL-M3

● SUN2000-30KTL-M3

● SUN2000-36KTL-M3

● SUN2000-40KTL-M3

The SUN2000-20KTL-M3 supports 220 V (line voltage) power grids.

Figure 2-1 Model description (SUN2000-30KTL-M3 is used as an example)

Table 2-1 Model description

1 Series name SUN2000: grid-tied solar inverter

Meaning Value

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

ID Meaning Value

2 Power class ● 20K: rated power of 20 kW

● 29.9K: rated power of 29.9 kW

● 30K: rated power of 30 kW

● 36K: rated power of 36 kW

● 40K: rated power of 40 kW

3 Topology TL: transformerless

4 Product code M3: product series with an input voltage level

of 1100 V DC

Note a: The maximum DC input voltage of SUN2000-20KTL-M3 is 800 V. For details, see 10 Technical

Specications.

Networking Application

The SUN2000 applies to the grid-tied systems of industrial and commercial rooftops and small ground PV plants. Typically, a grid-tied system consists of PV strings, grid-tied inverters, AC switches, and power distribution units.

Figure 2-2 Networking application - single inverter scenario

(1) PV string

(4) Isolation transformer (5) Power grid

Supported Power Grid Types

(2) SUN2000 (3) AC power distribution

unit

The SUN2000 supports TN-S, TN-C, TN-C-S, TT, and IT power grids.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

Figure 2-3 Power grid types

2.2 Appearance

Figure 2-4 Appearance

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

(1) LED indicator (2) Front panel

(3) Heat sink (4) Screws for xing the awning

(5) Communications port (COM) (6) Hole for the DC switch locking

screw

(7) DC switch (DC SWITCH) (8) Smart Dongle port (4G/WLAN-FE)

(9) Ventilation valve (10) DC input terminals (PV1–PV8)

(11) AC output port (12) Ground point

2.3 Label Description

Enclosure Labels

Symbol Name Description

Delay discharge Residual voltage exists

after the SUN2000 is powered o. It takes 5 minutes for the SUN2000 to discharge to the safe voltage.

Burn warning Do not touch a

running SUN2000 because it generates high temperatures on the shell.

Electric shock warning ● High voltage exists

after the SUN2000 is powered on. Only qualied and trained electrical technicians are allowed to perform operations on the SUN2000.

● High touch current exists after the SUN2000 is powered on. Before powering on the SUN2000, ensure that the SUN2000 is properly grounded.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

Symbol Name Description

Refer to documentation

Reminds operators to refer to the documents delivered with the SUN2000.

Grounding label Indicates the position

for connecting the PE cable.

Operation warning Do not remove the DC

input connector or AC output connector with power on.

Weight label The SUN2000 is heavy

and needs to be carried by three persons.

Burn warning on inverter handles

Do not touch the handles within 10 minutes after the inverter is shut down.

Indicator Indicates the SUN2000

operating information.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

Symbol Name Description

2.4 Working Principles

2.4.1 Circuit Diagram

A SUN2000 can connect to a maximum of eight PV strings and has four MPPT circuits inside. Each MPPT circuit tracks the maximum power point of two PV strings. The SUN2000 converts DC power into single-phase AC power through an inverter circuit. Surge protection is supported on both the DC and AC sides.

Figure 2-5 Schematic diagram

SUN2000 serial number

SUN2000 Wi-Fi login QR code

Indicates the serial number.

Scan the QR code to connect to the Huawei SUN2000 Wi-Fi network.

2.4.2 Working Modes

The SUN2000 can work in Standby, Operating, or Shutdown mode.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 2 Overview

Figure 2-6 Working modes

Table 2-2 Working mode description

Working

Description

Mode

Standby The SUN2000 enters Standby mode when the external

environment does not meet the operating requirements. In Standby mode:

● The SUN2000 continuously performs status check and enters the Operating mode once the operating requirements are met.

● The SUN2000 enters Shutdown mode after detecting a shutdown command or a fault after startup.

Operating In Operating mode:

● The SUN2000 converts DC power from PV strings into AC power and feeds the power to the power grid.

● The SUN2000 tracks the maximum power point to maximize the PV string output.

● If the SUN2000 detects a fault or a shutdown command, it enters the Shutdown mode.

● The SUN2000 enters Standby mode after detecting that the PV string output power is not suitable for connecting to the power grid for generating power.

Shutdown ● In Standby or Operating mode, the SUN2000 enters Shutdown

mode after detecting a fault or shutdown command.

● In Shutdown mode, the SUN2000 enters Standby mode after detecting a startup command or that the fault is rectied.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 3 SUN2000 Storage

3 SUN2000 Storage

The following requirements should be met if the SUN2000 is not put into use directly:

● Do not unpack the SUN2000.

● Keep the storage temperature at –40°C to +70°C and the humidity at 5%– 95% RH.

● Store the SUN2000 in a clean and dry place and protect it from dust and water vapor corrosion.

● A maximum of six SUN2000s can be stacked. To avoid personal injury or device damage, stack SUN2000s with caution to prevent them from falling over.

● During the storage period, check the SUN2000 periodically (recommended: every three months). If any rodent bites are found on the packing materials, replace the packing materials immediately.

● If the SUN2000 has been stored for more than two years, it must be checked and tested by professionals before being put into use.

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4 Installation

4.1 Checking Before Installation

Outer Packing Materials

Before unpacking the inverter, check the outer packing materials for damage, such as holes and cracks, and check the inverter model. If any damage is found or the inverter model is not what you requested, do not unpack the package and contact your supplier as soon as possible.

You are advised to remove the packing materials within 24 hours before installing the inverter.

Package Contents

● After placing the equipment in the installation position, unpack it with care to

prevent scratches. Keep the equipment stable during unpacking.

After unpacking the inverter, check that the contents are intact and complete. If any damage is found or any component is missing, contact your supplier.

For details about the number of contents, see the

Packing List

in the packing case.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

4.2 Tool Preparation

Type Tools and Instruments

Install ation

Insulated torque socket wrench (including an extension bar)

Hammer drill Drill bit Rubber mallet

Utility knife Marker Hydraulic pliers

Insulated torque socket wrench (including an extended socket)

Phillips insulated torque screwdriver

Cable cutter Wire stripper Diagonal pliers

Crimping tool

H4TC0003 (Amphenol)

Open-end wrench

H4TW0001 (Amphenol)

Heat shrink tubing

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

Type Tools and Instruments

Person al protec tive equip ment (PPE)

Crimping tool (model: PV-CZM-22100)

Steel measuring tape Level Multimeter

Cable tie Vacuum cleaner

Goggles Work shoes Dust mask

Open-end wrench (model: PV-MS-HZ or PV-MS openend wrench)

Heat gun

Protective gloves Insulated gloves

4.3 Selecting an Installation Position

Basic Requirements

● The SUN2000 is IP66-rated and can be installed indoors or outdoors.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

● Do not install the SUN2000 in a place where a person can easily be exposed to its enclosure and heat sinks, because these parts are extremely hot during operation.

● Do not install the SUN2000 in areas with ammable or explosive materials.

● If inverters are installed in a place with abundant vegetation, in addition to routine weeding, harden the ground underneath the inverters using cement or gravel (recommended area: 3 m x 2.5 m).

● Do not install the SUN2000 in a place within children's reach.

● The SUN2000 will be corroded in salt areas, and the salt corrosion may cause re. Do not install the SUN2000 outdoors in salt areas. A salt area refers to the region within 500 m from the coast or prone to sea breeze. The from sea breeze depends on weather conditions (such as typhoon and season wind) or terrains (such as dams and hills).

eect

Site Requirements

● The SUN2000 should be installed in a well-ventilated environment to ensure good heat dissipation.

● If the SUN2000 is installed in a place exposed to direct sunlight, the power may decrease as the temperature rises.

● You are advised to install the SUN2000 in a sheltered place or install an awning over it.

Mounting Structure Requirements

● The mounting structure where the SUN2000 is installed must be

● Do not install the SUN2000 on ammable building materials.

● The SUN2000 is heavy. Ensure that the installation surface is solid enough to bear the weight load.

● In residential areas, do not install the SUN2000 on drywalls or walls made of similar materials which have a weak sound insulation performance because the noise generated by the SUN2000 is noticeable.

Installation Angle Requirements

The SUN2000 can be wall-mounted or support-mounted. Requirements for the installation angle:

● Install the SUN2000 vertically or at a maximum back tilt of 15 degrees to facilitate heat dissipation.

● Do not install the SUN2000 with a front tilt, excessive back tilt, side tilt, horizontally, or upside down.

re resistant.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

Figure 4-1 Installation angle

Installation Space Requirements

● Reserve enough clearance around the SUN2000 to ensure sucient space for installation and heat dissipation.

Figure 4-2 Installation space

● When installing multiple SUN2000s, install them in horizontal mode if ample space is available and install them in triangle mode if no ample space is available. Stacked installation is not recommended.

Figure 4-3 Horizontal installation (recommended)

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

Figure 4-4 Two-layer triangle installation (recommended)

Figure 4-5 Three-layer triangle installation (not recommended)

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Figure 4-6 Stacked installation (not recommended)

Figure 4-7 Back-to-back installation (not recommended)

The installation diagrams are for reference only and are irrelevant to the SUN2000 cascading scenario.

4.4 Moving the SUN2000

● After placing the equipment in the installation position, unpack it with care to

prevent scratches. Keep the equipment stable during unpacking.

Procedure

Step 1 Lift the SUN2000 from the packing case and move it to the specied installation

position.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 4 Installation

● Move the SUN2000 with care to prevent device damage and personal injury.

● Do not use the wiring terminals and ports at the bottom to support any weight

of the SUN2000.

● Place a foam pad or cardboard under the SUN2000 to protect the SUN2000

enclosure from damage.

Figure 4-8 Moving the SUN2000

----End

4.5 Installing the Mounting Bracket

Installation Precautions

Before installing the mounting bracket, remove the security Torx wrench and set it aside.

Figure 4-9 Position for binding the security Torx wrench

(1) Security Torx wrench

Figure 4-10 shows the dimensions of the mounting holes for the SUN2000.

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Figure 4-10 Mounting bracket dimensions

4.5.1 Support-mounted Installation

Procedure

Step 1 Secure the mounting bracket.

Figure 4-11 Securing the mounting bracket

You are advised to apply anti-rust paint on the hole positions for protection.

----End

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4.5.2 Wall-mounted Installation

Prerequisites

To install the SUN2000, you need to prepare expansion bolts. M12x60 stainless steel expansion bolts are recommended.

Procedure

Step 1 Determine the positions for drilling holes and mark the positions using a marker.

Step 2 Secure the mounting bracket.

Avoid drilling holes in the water pipes and cables buried in the wall.

Figure 4-12 Expansion bolt composition

(1) Bolt (2) Nut (3) Spring washer

(4) Flat washer (5) Expansion sleeve

● To prevent dust inhalation or contact with eyes, wear safety goggles and an

anti-dust mask when drilling holes.

● Clean up any dust in and around the holes using a vacuum cleaner and

measure the distance between holes. If the holes are inaccurately positioned, drill holes again.

● Level the front of the expansion sleeve with the concrete wall after removing

the bolt, spring washer, and not be securely installed on the concrete wall.

at washer. Otherwise, the mounting bracket will

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Figure 4-13 Installing expansion bolts

----End

4.6 Installing a SUN2000

Step 1 (Optional) Install the locking screw for the DC switch.

● The DC switch locking screw is used to lock the DC switch to prevent the switch from rotating.

● For models used in Australia, install the DC switch locking screw according to local standards. The DC switch locking screw is delivered with the SUN2000.

Figure 4-14 Installing the locking screw for the DC switch

Step 2 Install the SUN2000 onto the mounting bracket.

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Figure 4-15 Installing a SUN2000

Step 3 Tighten the nuts on both sides of the SUN2000.

Figure 4-16 Tightening the nut

Secure the screws on the sides before connecting cables.

----End

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

5 Electrical Connections

5.1 Precautions

When exposed to sunlight, the PV arrays supply DC voltage to the inverter. Before connecting cables, ensure that all DC SWITCH on the inverter are OFF. Otherwise, the high voltage of the inverter may result in electric shocks.

● The site must be equipped with qualied re ghting facilities, such as re sand and carbon dioxide re extinguishers.

● Wear personal protective equipment and use dedicated insulated tools to avoid electric shocks or short circuits.

● The equipment damage caused by incorrect cable connections is beyond the warranty scope.

● Only

● Operation personnel must wear PPE when connecting cables.

● Before connecting cables to ports, leave enough slack to reduce the tension on

certied electrician can perform electrical terminations.

the cables and prevent poor cable connections.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

● Stay away from the equipment when preparing cables to prevent cable scraps from entering the equipment. Cable scraps may cause sparks and result in personal injury and equipment damage.

● When routing PV cables, the positive and negative PV string cables should be routed in dierent pipes to prevent cable damage and short circuits caused by improper operations during construction.

The cable colors shown in the electrical connection diagrams provided in this section are for reference only. Select cables in accordance with local cable specications (green-and-yellow cables are only used for protective earthing).

5.2 Preparing Cables

Figure 5-1 SUN2000 cable connections (dashed boxes indicate optional

components)

Table 5-1 Components

No.

Component Description Source

A PV string ● A PV string consists of PV

modules connected in series.

● The SUN2000 supports the input from eight PV strings.

Prepared by users

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

No. Component Description Source

B AC switch To ensure that the inverter can be

safely disconnected from the power grid when an exception occurs, connect an AC switch to the AC side of the inverter. Select an appropriate AC switch in accordance with local industry standards and regulations. Huawei recommends the following switch

specications:

Recommended: a three-phase AC circuit breaker with a rated voltage greater than or equal to 500 V AC and a rated current of:

● 63 A (SUN2000-29.9KTL/30KTLM3)

● 80 A (SUN2000-20KTL-M3)

● 100 A (SUN2000-36KTL/40KTLM3)

C Power

meter

[1]

The SUN2000 can connect to the DTSU666-H, DTSU666-HW, YDS60-80 and YDS60-C24 power

[2]

meter.

Prepared by users

Purchased from Huawei

D SUN2000 Select a proper model as required. Purchased from

Huawei

E SmartLogger SmartLogger3000 Purchased from

Huawei

F Smart

Dongle

G Smart PV

optimizer

[3]

Select a proper model as required. Purchased from

Huawei

MERC-1300W-P, MERC-1100W-P, SUN2000-600W-P, SUN2000-450W-

Purchased from Huawei

P2, SUN2000-450W-P.

Note [1]: For details about meter operations, see

DTSU666-HW Smart Power Sensor Quick Guide, YDS60-80 Smart Power Sensor Quick Guide, YDS60-C24 Smart Power Sensor Quick Guide, DTSU666-H and DTSU666-H 250 A (50 mA) Smart Power Sensor Quick Guide Smart Power Sensor User Manual

and

DTSU666-H 100 A and 250 A

Note [2]: SUN2000MA V100R001C20SPC116 and later versions can connect to DTSU666-HW power meter.

Note [3]: For details about how to operate optimizers, see MERC Smart PV

Optimizer User Manual and SUN2000 Smart PV Optimizer User Manual.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

The cable specications must comply with local standards.

Table 5-2 Cable description

No. Cable Type Recommended

Specications

1 DC input

power cable

Common PV cable in the industry

(Recommended model: PV1-F)

● Conductor crosssectional area: 4–6

● Cable outer diameter: 5.5–9 mm

2 AC

output power cable

Outdoor copper-core/ aluminum-core cable

● Conductor crosssectional area:

16-50 mm

outdoor coppercore cable or 35-50

mm2 outdoor aluminum-core cable

● Cable outer diameter: 16–38 mm

3 (Option

al) Signal cable

Two-core outdoor shielded twisted pair (recommended model: DJYP2VP2-2x2x0.75)

● Conductor crosssectional area: 0.2–

1 mm

● Cable outer diameter: 4–11 mm

Source

Prepare d by users

4 PE cable Single-core outdoor

copper-core cable

Conductor crosssectional area ≥ 16

Prepare d by users

Note a: Five-core cables with a cross-sectional area of 5 x 35 mm2 or 5 x 50 mm2 are not supported.

If the SUN2000 is used with an optimizer, route the AC and DC power cables separate to avoid interference to the communication of the optimizer.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

5.3 Connecting the PE Cable

● Ensure that the PE cable is securely connected. Otherwise, electric shocks may occur.

● Do not connect the neutral wire to the enclosure as a PE cable. Otherwise, electric shocks may occur.

● The PE point at the AC output port is used only as a PE equipotential point, not a substitute for the PE point on the enclosure.

● It is recommended that silicone sealant or paint be applied around the ground terminal after the PE cable is connected.

Procedure

Step 1 Crimp OT terminals.

● Avoid scratching the core wire when stripping a cable.

● The cavity formed after the conductor crimp strip of the OT terminal is crimped must wrap the core wires completely. The core wires must contact the OT terminal closely.

● Wrap the wire crimping area with heat shrink tubing or PVC insulation tape. The heat shrink tubing is used as an example.

● When using a heat gun, protect devices from being scorched.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

Figure 5-2 Crimping an OT terminal

(1) Cable (2) Core (3) Heat shrink tubing

(4) OT terminal (5) Crimping tool (6) Heat gun

Step 2 Connect the PE cable.

Figure 5-3 Connecting the PE cable

(1) Reserved PE point

----End

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

5.4 Connecting the AC Output Power Cable

Precautions

An AC switch must be installed on the AC side of the SUN2000 to ensure that the SUN2000 can be safely disconnected from the power grid.

● Do not connect loads between the inverter and the AC switch that directly connects to the inverter. Otherwise, the switch may trip by mistake.

● If an AC switch is used with specications beyond local standards, regulations, or Huawei's recommendations, the switch may fail to turn manner in case of exceptions, causing serious faults.

o in a timely

Each inverter must be equipped with an AC output switch. Multiple inverters cannot connect to the same AC output switch.

● If the external AC switch can perform earth leakage protection, the rated leakage action current should be greater than or equal to 300 mA.

● If multiple SUN2000s connect to the general residual current device (RCD) through their respective external AC switches, the rated leakage action current of the general RCD should be greater than or equal to the number of SUN2000s multiplied by 300 mA.

● Use a socket wrench and extension rod to connect the AC power cable. The extension rod must be longer than 100 mm.

Sucient slack should be provided in the PE cable to ensure that the last cable

● bearing the force is the PE cable when the AC output power cable bears pulling force due to force majeure.

● Do not install third-party devices in the AC connection box.

● You need to prepare M8 OT terminals by yourself.

● If the AC MBUS is used, multi-core cables are recommended, supporting a maximum communication distance of 1000 m. To use other types of AC power cables, contact the Company's technical support.

Requirements for the OT or DT Terminal

● If a copper cable is used, use copper wiring terminals.

● If a copper-clad aluminum cable is used, use copper wiring terminals.

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● If an aluminum alloy cable is used, use copper-aluminum transition wiring

terminals, or aluminum wiring terminals along with copper-aluminum transition spacers.

● Do not connect aluminum wiring terminals to the AC terminal block. Otherwise the electrochemical corrosion will occur and aect the reliability of cable connections.

● Comply with the IEC61238-1 requirements when using copper-aluminum transition wiring terminals, or aluminum wiring terminals along with copperaluminum transition spacers.

● If copper-aluminum transition spacers are used, pay attention to the front and rear sides. Ensure that the aluminum sides of spacers are in contact with aluminum wiring terminals, and copper sides of spacers are in contact with the AC terminal block.

Figure 5-4 Requirements for the OT/DT terminal

Procedure

Step 1 Remove the AC terminal box and install partition boards.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

Figure 5-5 Removing the AC terminal box

Step 2 Connect the AC output power cable.

● To avoid damaging the rubber liner, do not route a cable with a crimped OT terminal directly through it.

● It is recommended that the length of the PE cable to be stripped be 15 mm longer than the length of other cables.

● The cable colors in gures are for reference only. Select appropriate cables according to the local standards.

Figure 5-6 Stripping the AC power cable (using a ve-core cable as an example)

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

Figure 5-7 Five-core cable (L1, L2, L3, N, and PE)

Figure 5-8 Four-core cable (L1, L2, L3, and PE)

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

Figure 5-9 Four-core cable (L1, L2, L3, and N)

Figure 5-10 Three-core cable (L1, L2, and L3)

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Figure 5-11 Wiring requirements

----End

5.5 Installing the DC Input Power Cable

5.5.1 Cable Connection Description

Precautions

● Before connecting the DC input power cables, ensure that the DC voltage is within the safe range (lower than 60 V DC) and that the DC switch on the SUN2000 is OFF. Failing to do so may result in electric shocks.

● When the SUN2000 is running, it is not allowed to work on the DC input power cables, such as connecting or disconnecting a PV string or a PV module in a PV string. Failing to do so may cause electric shocks.

● If no PV string connects to a DC input terminal of the SUN2000, do not remove the watertight cap from the DC input terminals. Otherwise, the IP rating of the SUN2000 will be

aected.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

Ensure that the following conditions are met. Otherwise, the SUN2000 may be damaged, or even a re could happen.

● PV modules connected in series in each PV string are of the same specications.

● The DC input voltage of the SUN2000-29.9KTL/30KTL/36KTL/40KTL-M3 shall not exceed 1100 V DC under any circumstance.

● The DC input voltage of the SUN2000-20KTL-M3 shall not exceed 800 V DC under any circumstance.

● The polarities of electric connections are correct on the DC input side. The positive and negative terminals of a PV string connect to corresponding positive and negative DC input terminals of the SUN2000.

● If polarity of the DC input power cable is reversed and the DC switch is ON, do not turn

o the DC switch immediately or remove positive and negative connectors. Wait until the solar irradiance declines at night and the PV string current reduces to below 0.5 A, and then turn

o the DC switch and remove the positive and negative connectors. Correct the PV string polarity before reconnecting the PV string to the SUN2000.

● The SUN2000 does not support power supplies other than PV strings. Since the output of the PV string connected to the SUN2000 cannot be grounded, ensure that the PV module output is well insulated to ground.

● During the installation of PV strings and the SUN2000, the positive or negative terminals of PV strings may be short-circuited to ground if the power cable is not properly installed or routed. In this case, an AC or DC short circuit may occur and damage the SUN2000. The caused device damage is not covered under any warranty.

Figure 5-12 DC input terminals

When the DC input is not fully congured, the DC input terminals must meet the following requirements:

1. Distribute the DC input power cables evenly over four MPPT circuits, and

connect them preferentially through MPPT1 and MPPT4.

2. Maximize the number of connected MPPT circuits.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

Number of PV Strings

1 PV1 2 PV1 and PV7

3 PV1, PV3 and PV7 4 PV1, PV3, PV5 and PV7

5 PV1, PV2, PV3, PV5 and

7 PV1, PV2, PV3, PV4, PV5,

Terminal Selection Number

of PV Strings

6 PV1, PV2, PV3, PV5, PV7

PV7

8 PV1, PV2, PV3, PV4, PV5,

PV7 and PV8

Terminal Selection

and PV8

PV6, PV7 and PV8

5.5.2 Connecting Cables to Amphenol Helios H4 Connectors

Use the positive and negative Amphenol Helios H4 metal terminals and DC connectors supplied with the solar inverter. Using incompatible positive and negative metal terminals and DC connectors may result in serious consequences. The caused device damage is not covered under any warranty.

Procedure

Step 1 Connect the DC power cable.

● You are advised to use the H4TC0003 (Amphenol) crimping tool and do not use it with the positioning block. Otherwise, the metal terminals may be damaged.

● The H4TW0001 (Amphenol) open-end wrench is recommended.

● Cables with high rigidity, such as armored cables, are not recommended as DC input power cables, because poor contact may be caused by the bending of the cables.

● Before assembling DC connectors, label the cable polarities correctly to ensure correct cable connections.

● After the positive and negative connectors snap into place, pull the DC input cables back to ensure that they are connected securely.

● If the SUN2000 is used with an optimizer, the number of optimizers for a single PV string cannot exceed 25.

● If the PV string is referring to the smart PV optimizer quick guide.

congured with an optimizer, check the cable polarity by

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Figure 5-13 Connecting the DC power cable

----End

During DC input power cabling, leave at least 50 mm of slack. The axial tension on PV connectors must not exceed 80 N. Radial stress or torque must not be generated on PV connectors.

5.5.3 Connecting Cables to Staubli MC4 Connectors

Use the positive and negative Staubli MC4 metal terminals and DC connectors supplied with the SUN2000. Using incompatible positive and negative metal terminals and DC connectors may result in serious consequences. The caused device damage is not covered under warranty.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

● You are advised to use the PV-CZM-22100 (Staubli) crimping tool and do not use it with the positioning block. Otherwise, the metal terminals may be damaged.

● The PV-MS (Staubli) or PV-MS-HZ (Staubli) open-end wrench is recommended.

● Cables with high rigidity, such as armored cables, are not recommended as DC input power cables, because poor contact may be caused by the bending of the cables.

● Before assembling DC connectors, label the cable polarities correctly to ensure correct cable connections.

● After the positive and negative connectors snap into place, pull the DC input cables back to ensure that they are connected securely.

● If the SUN2000 is used with an optimizer, the number of optimizers for a single PV string cannot exceed 25.

● If the PV string is

congured with an optimizer, check the cable polarity by

referring to the smart PV optimizer quick guide.

Procedure

Step 1 Connect the DC power cable.

Figure 5-14 Connecting the DC power cable

----End

During DC input power cabling, leave at least 50 mm of slack. The axial tension on PV connectors must not exceed 80 N. Radial stress or torque must not be generated on PV connectors.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

5.6 (Optional) Installing the Smart Dongle

Procedure

The Smart Dongle is not provided in standard conguration.

● 4G Smart Dongle

● If your Smart Dongle is not equipped with a SIM card, prepare a standard SIM card (size: 25 mm x 15 mm) with the capacity greater than or equal to 64 KB.

● When installing the SIM card, determine its installation direction based on the silk screen and arrow on the card slot.

● Press the SIM card in place to lock it, indicating that the SIM card is correctly installed.

● When removing the SIM card, push it inwards to eject it.

● When reinstalling the cover of the Smart Dongle, ensure that the buckle springs back in place.

Figure 5-15 Installing a 4G Smart Dongle (SDongleA-03)

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

Figure 5-16 Installing a 4G Smart Dongle (SDongleB-06)

● WLAN-FE Smart Dongle (WLAN Communication)

Figure 5-17 Installing a WLAN-FE Smart Dongle (WLAN communication)

● WLAN-FE Smart Dongle (FE Communication)

Figure 5-18 Installing a WLAN-FE Smart Dongle (FE communication)

Install the network cable before installing the Smart Dongle on the solar inverter.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

● For details about how to operate the WLAN-FE Smart Dongle SDongleA-05, see

SDongleA-05 Smart Dongle Quick Guide (WLAN-FE)

below to obtain the document.

● For details about how to operate the 4G Smart Dongle SDongleA-03, see

SDongleA-03 Quick Guide (4G)

document.

● For details about how to operate the 4G Smart Dongle SDongleB-06, see

SDongleB-06 Smart Dongle Quick Guide (4G)

to obtain the document.

. You can scan the QR code below to obtain the

. You can scan the QR code

. You can scan the QR code below

The quick guide is delivered with the Smart Dongle.

5.7 Connecting the Signal Cable

COM Port Pin Denitions

When laying out a signal cable, separate it from power cables to avoid strong signal interference.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

Figure 5-19 Pin denitions

Pin DenitionFunction Description Pin DenitionFunction Description

1 485A1_1 RS485

dierential

signal +

3 485B1_1 RS485

dierential

signal –

5 PE Ground point

on the shield layer

7 485A2 RS485

dierential

signal +

9 485B2 RS485

dierential

signal –

Used to cascade inverters or

2 485A1_2 RS485

dierential

signal + connect to the SmartLogger.

4 485B1_2 RS485

dierential

signal –

- 6 PE Ground

point on the

shield layer

Connects to the RS485 signal port for controlling the power meter at

8 DIN1 Dry contact

for power

grid

scheduling

10 DIN2

the grid-tied point.

Used to cascade inverters or connect to the SmartLogger.

11 - - - 12 DIN3

13 GND GND - 14 DIN4

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Pin DenitionFunction Description Pin DenitionFunction Description

15 DIN5 Rapid

shutdown/NS protection

Used to connect to the rapid shutdown

16 GND

DI signal port or serve as a port for the signal cable of the NS protection.

Scenarios Where No Signal Cable Is Connected

If no signal cable is required for the SUN2000, use waterproof plugs to block the wiring holes on the signal cable connector and connect the signal cable connector to the communications port on the SUN2000 to improve the waterproof performance of the SUN2000.

Figure 5-20 Securing the signal cable connector

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

5.7.1 Communication Modes

RS485 Communication

● Smart Dongle networking

Figure 5-21 Smart Dongle networking

If a SUN2000 is networked using a Smart Dongle, it cannot be connected to the SmartLogger.

● SmartLogger networking

Figure 5-22 SmartLogger networking

● If a SUN2000 is networked using the SmartLogger, it cannot be connected to a Smart Dongle.

● It is recommended that the number of SUN2000s connected to each RS485 route be less than 30.

MBUS Communication

The MBUS is a communication mode in which communication signals are loaded to power cables through the communications board for transmission.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

● Inverters manufactured after July 20, 2022 do not support the AC MBUS.

● The built-in MBUS module in the SUN2000 does not need to be connected with cables.

● In utility-scale scenarios, an isolation transformer must be connected between inverters and loads.

● Commercial and industrial scenarios are supported only in China.

Figure 5-23 MBUS communication (utility-scale scenarios)

Figure 5-24 MBUS communication (commercial and industrial scenarios in China)

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

5.7.2 (Optional) Connecting the RS485 Communications Cable to the SUN2000

Procedure

Step 1 Connect the signal cable to the signal cable connector.

Figure 5-25 Connecting the cable

Step 2 Connect the signal cable connector to the COM port.

Figure 5-26 Securing the signal cable connector

----End

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

5.7.3 (Optional) Connecting the RS485 Communications Cable to the Power Meter

Procedure

Step 1 Connect the signal cable to the signal cable connector.

Figure 5-27 Connecting the cable

Step 2 Connect the signal cable connector to the COM port.

Figure 5-28 Securing the signal cable connector

----End

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

5.7.4 (Optional) Connecting the Power Grid Scheduling Signal Cable

Procedure

Step 1 Connect the signal cable to the signal cable connector.

Figure 5-29 Connecting the cable

Step 2 Connect the signal cable connector to the COM port.

Figure 5-30 Securing the signal cable connector

----End

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 5 Electrical Connections

5.7.5 (Optional) Connecting the Rapid Shutdown Signal Cable

Procedure

Step 1 Connect the signal cable to the signal cable connector.

Figure 5-31 Connecting the cable

Step 2 Connect the signal cable connector to the COM port.

Figure 5-32 Securing the signal cable connector

----End

D ANGER

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 6 Commissioning

6 Commissioning

● Wear personal protective equipment and use dedicated insulated tools to avoid electric shocks or short circuits.

6.1 Checking Before Power-On

Table 6-1 Checklist

No.

1 SUN2000 installation The SUN2000 is installed correctly and

2 Smart Dongle The Smart Dongle is installed correctly

3 Cable routing The cables are routed properly as

4 Cable ties Cable ties are evenly distributed and no

5 Reliable grounding The PE cable is connected correctly and

6 Switch DC switches and all the switches

7 Cable connection The AC output power cable, and DC

Check Item Acceptance Criteria

securely.

and securely.

required by the customer.

burr exists.

securely.

connecting to the SUN2000 are OFF.

input power cables are connected correctly and securely.

8 Unused terminals and ports Unused terminals and ports are locked

by watertight caps.

D ANGER

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 6 Commissioning

No. Check Item Acceptance Criteria

9 Installation environment The installation space is proper, and

the installation environment is clean and tidy.

6.2 System Power-On

Prerequisites

● Wear personal protective equipment and use dedicated insulated tools to avoid electric shocks or short circuits.

Procedure

Step 1 Turn on the AC switch between the SUN2000 and the power grid.

Step 2 (Optional) Remove the locking screw beside the DC switch.

Step 3 Turn on the DC switch at the bottom of the SUN2000.

● Before turning on the AC switch between the SUN2000 and the power grid, check that the AC voltage is within the specied range using a multimeter.

● If the DC power supply is connected but the AC power supply is disconnected, the SUN2000 will report a Grid Loss alarm. The SUN2000 can start properly only after the power grid recovers.

Figure 6-1 Removing the locking screw beside the DC switch

Step 4 Observe the LED indicators to check the operating status of the SUN2000.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 6 Commissioning

Table 6-2 Indicator description

Category Status Description

Running indicator

LED1 LED2 –

Steady green Steady green The SUN2000 is

operating in gridtied mode.

Blinking green slowly (on for 1s

O The DC is on and

the AC is o.

and o for 1s)

Blinking green slowly (on for 1s and o for 1s)

Both the DC and AC are on, and the SUN2000 is not supplying power to the power grid.

O Blinking green

slowly

The DC is o and the AC is on.

O O Both the DC and

AC are o.

Blinking red fast (on for 0.2s and

– DC environment

alarm

o for 0.2s)

– Blinking red fast

(on for 0.2s and

AC environment alarm

o for 0.2s)

Steady red Steady red Faulty

Communications

LED3 –

indicator

Blinking green fast (on for 0.2s and then o for 0.2s)

Blinking green slowly (on for 1s and o for 1s)

Communication is in progress.

A mobile phone is connected.

O No communication

Note: If LED1, LED2, and LED3 are steady red, the SUN2000 is faulty and needs to be replaced.

----End

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 7 Man-Machine Interaction

7 Man-Machine Interaction

● If the SUN2000 is connected to the FusionSolar Smart PV Management System, the FusionSolar app is recommended. In areas where the FusionSolar app is not available, or when a third-party management system is used, only the SUN2000 app can be used for commissioning.

● Access the Huawei app store (http://appstore.huawei.com), search for FusionSolar or SUN2000, and download the app installation package. You can also scan the QR codes below to download the apps.

● The screenshots are for reference only. The actual screens may vary.

● Obtain the initial password for connecting to the solar inverter WLAN from the label on the side of the solar inverter.

● Set the password at the password periodically and keep the new password in mind. Not changing the password may cause password disclosure. A password left unchanged for a long period of time may be stolen or cracked. If a password is lost, devices cannot be accessed. In these cases, the user is liable for any loss caused to the PV plant.

● Set the correct grid code based on the application area and scenario of the SUN2000.

rst login. To ensure account security, change the

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 7 Man-Machine Interaction

7.1 Scenario in Which SUN2000s Are Connected to the FusionSolar Smart PV Management System

7.1.1 (Optional) Registering an Installer Account

● If you have an installer account, skip this step.

● You can register an account only using a mobile phone only in China.

● The mobile number or email address used for registration is the user name for logging in to the FusionSolar app.

Create the name.

Figure 7-1 Creating the

rst installer account and create a domain named after the company

rst installer account

To create multiple installer accounts for a company, log in to the FusionSolar app and tap Add User to create an installer account.

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 7 Man-Machine Interaction

Figure 7-2 Creating multiple installer accounts for the same company

7.1.2 Creating a PV Plant and a User

Figure 7-3 Creating a PV plant and a user

● In the quick settings for SUN2000-(29.9KTL/36KTL/40KTL)-M3, the grid code is N/A by default (automatic startup is not supported). Set the grid code based on the area where the PV plant is located.

● For details about how to use the site deployment wizard, see

Guide

FusionSolar App Quick

7.1.3 SmartLogger Networking Scenario

For details, see

(Inverters + SmartLogger3000), PV Plants Connecting to SmartPVMS Quick

PV Plants Connecting to Huawei Hosting Cloud Quick Guide

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 7 Man-Machine Interaction

Guide (Inverters + SmartLogger3000 + RS485 Networking) Connecting to SmartPVMS Quick Guide (Inverters + SmartLogger3000 + MBUS Networking)

Inverters manufactured after July 20, 2022 do not support the AC MBUS.

and

PV Plants

7.2 Scenario in Which SUN2000s Are Connected to Other Management Systems

Step 1 Open the SUN2000 app, scan the QR code of the SUN2000 or manually connect

to the WLAN hotspot to access the device commissioning screen.

Step 2 Select installer and enter the login password.

Step 3 Tap Log in to access the quick settings screen or SUN2000 home screen.

Figure 7-4 Logging In to the app

----End

7.3 Energy Control

7.3.1 Grid-tied Point Control

Function

Limits or reduces the output power of the PV power system to ensure that the output power is within the

Procedure

Step 1 On the home screen, choose Power adjustment > Grid-tied point control.

specied range.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 7 Man-Machine Interaction

Figure 7-5 Grid-tied point control

Table 7-1 Grid-tied point control

Parameter Description

Active power

Unlimited- If this parameter is set to Unlimited, the output power of

the SUN2000 is not limited and the SUN2000 can connect to the power grid at the rated power.

Grid connecti on with zero

Closed-loop controller

● If multiple SUN2000s are cascaded, set this parameter to SDongle/SmartLogger.

● If there is only one SUN2000, set this parameter to Inverter.

power

Limitation mode

● Total power indicates export limitation of the total power at the grid-tied point. (When a single-phase meter is connected, only Total power can be selected. If a three-phase meter is connected in three-phase threewire mode, only Total power can be selected.)

● Single-phase power indicates export limitation of the power in each phase at the grid-tied point. If a threephase meter is connected, Single-phase power can be selected only when the meter is connected in threephase four-wire mode.

Power adjustment

Species the shortest interval for a single export limitation adjustment.

period

Maximum protection time

Species the time for detecting power meter data. If the Dongle does not detect any power meter data within the preset time, the Dongle delivers the preset value of Active power output limit for fail-safe for protection.

Power raising

Species the step for grid-tied power adjustment.

threshold

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 7 Man-Machine Interaction

Parameter Description

Grid connecti on with limited power (kW)

Active power output limit for fail-safe

Communicatio n disconnection fail-safe

Communicatio n disconnection detection time

Closed-loop controller

Limitation mode

Species the derating value of the SUN2000 active power by percentage. If the Smart Dongle does not detect any meter data or the communication between the Smart Dongle and the SUN2000 is disconnected, the Smart Dongle delivers the derating value of the SUN2000 active power by percentage.

In the inverter export limitation scenario, if this parameter is set to Enable, the inverter will derate according to the active power derating percentage when the communication between the inverter and the Smart Dongle is disconnected for a period longer than Communication disconnection detection time.

Species the fail-safe detection time for the disconnection between the SUN2000 and the Smart Dongle.

This parameter is displayed when Communication disconnection fail-safe is enabled.

● If multiple SUN2000s are cascaded, set this parameter to SDongle/SmartLogger.

● If there is only one SUN2000, set this parameter to Inverter.

Maximum grid feed-in power

Power adjustment

Species the maximum active power transmitted from the grid-tied point to the power grid.

Species the shortest interval for a single export limitation adjustment.

period

Maximum protection time

Power raising

Species the step for grid-tied power adjustment.

threshold

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 7 Man-Machine Interaction

Parameter Description

Grid connecti on with limited power (%)

Power adjustment period

Active power output limit for fail-safe

Communicatio n disconnection fail-safe

Communicatio n disconnection detection time

Closed-loop controller

Limitation mode

Species the shortest interval for a single export limitation adjustment.

Species the derating value of the inverter active power by percentage. If the Smart Dongle does not detect any power meter data or the communication between the Smart Dongle and the inverter is disconnected, the Smart Dongle delivers the derating value of the inverter active power by percentage.

Species the time for determining the communication disconnection between the inverter and the Smart Dongle. This parameter is displayed when Communication disconnection fail-safe is set to Enable.

● For a single inverter, set Closed-loop controller to Inverter.

● For multiple inverters, Closed-loop controller can only be set to SDongle/SmartLogger.

PV plant capacity

Maximum grid feed-in power

Maximum protection time

Species the total maximum active power in the inverter cascading scenario.

Species the percentage of the maximum active power of the grid-tied point to the PV plant capacity.

Power raising

Species the step for grid-tied power adjustment.

threshold

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 7 Man-Machine Interaction

Parameter Description

Shutdo wn at high feed-in

power

Power adjustment period

Active power output limit for fail-safe

Communicatio n disconnection fail-safe

Communicatio n disconnection detection time

Shutdown at high feed-in power

Species the shortest interval for a single export limitation adjustment.

Species the time for determining the communication disconnection between the inverter and the Smart Dongle. This parameter is displayed when Communication disconnection fail-safe is set to Enable.

● The default value is Disable.

● If this parameter is set to Enable, the inverter shuts down for protection when the grid-connection point power exceeds the threshold and remains in this condition for the specied time threshold.

Upper feed-in power threshold for inverter shutdown (kW)

High feed-in power duration threshold for triggering inverter shutdown (s)

The default value is 0. This parameter species the power threshold of the grid-connection point for triggering inverter shutdown.

The default value is 20. This parameter species the duration threshold of high feed-in power for triggering inverter shutdown.

● When High feed-in power duration threshold for

triggering inverter shutdown is set to 5. Shutdown at high feed-in power takes precedence.

● When High feed-in power duration threshold for triggering inverter shutdown is set to 20, Grid connection with limited power takes precedence (when Active power control is set to Grid connection with limited power).

Note 1: This parameter is supported only for the AS4777 grid code.

----End

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SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 7 Man-Machine Interaction

7.3.2 Apparent Power Control on the Inverter Output Side

On the home screen, tap Settings > Power adjustment to set inverter parameters.

Figure 7-6 Apparent power control

Table 7-2 Apparent power

Parameter

Maximum apparent power (kVA)

Description Value Range

Species the output upper threshold for the

[Maximum active power, S

]

max

maximum apparent power to adapt to the capacity requirements of standard and customized inverters.

Maximum active power (kW)

Species the output upper threshold for the

[0.1, P

max

]

maximum active power to adapt to dierent market requirements.

The lower threshold for the maximum apparent power is the maximum active power. To lower the maximum apparent power, lower the maximum active power rst.

D ANGER

WARNING

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

8 Maintenance

● Wear personal protective equipment and use dedicated insulated tools to avoid electric shocks or short circuits.

● Before performing maintenance, power o the equipment, follow the instructions on the delayed discharge label, and wait for a period of time as specied to ensure that the equipment is not energized.

8.1 System Power-O

Precautions

After the SUN2000 powers o, the remaining electricity and heat may still cause electric shocks and body burns. Therefore, put on protective gloves and begin operating the SUN2000

Procedure

Step 1 Send a shutdown command on the app.

ve minutes after the power-o.

Step 2 Turn o the AC switch between the SUN2000 and the power grid.

Step 3 Turn o the DC switch at the bottom of the SUN2000.

Step 4 (Optional) Install the locking screw for the DC switch.

CA UTION

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

Figure 8-1 Installing the locking screw for the DC switch

Step 5 Turn on the DC switch between the PV string and the SUN2000 if there is any.

----End

8.2 Routine Maintenance

To ensure that the SUN2000 can operate properly for a long term, you are advised to perform routine maintenance on it as described in this chapter.

Before cleaning the system, connecting cables, and ensuring the grounding reliability, power o the system.

Table 8-1 Maintenance checklist

Check Item

System cleanliness

System operating status

Electrical connection

Check Method Maintenance

Interval

Check periodically that the heat sinks are free from obstacles and dust.

● Check that the SUN2000 is not damaged or deformed.

● Check that the SUN2000 operates with no abnormal sound.

● Check that all SUN2000 parameters are correctly set during operation.

● Check that cables are secured.

● Check that cables are intact, and that in particular, the parts touching the metallic surface are not scratched.

Once every 6 to 12 months

Once every 6 months

The rst inspection is 6 months after the initial commissioning. From then on, the interval can be 6 to 12 months.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

Check Item Check Method Maintenance

Interval

Grounding reliability

Air tightness Check that all terminals and ports are

Clear vegetation around the inverters

8.3 Troubleshooting

Alarm severities are dened as follows:

● Major: The inverter is faulty. As a result, the output power decreases or the grid-tied power generation is stopped.

● Minor: Some components are faulty without generation.

● Warning: The inverter works properly. The output power decreases or some authorization functions fail due to external factors.

Check that ground cables are securely connected.

properly sealed.

● Perform inspection and weeding as required.

● Clean the site promptly after weeding.

aecting the grid-tied power

The rst inspection is 6 months after the initial commissioning. From then on, the interval can be 6 to 12 months.

Once a year

Based on the local wilting season

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

Table 8-2 Common fault alarm list

ID Name Severity Cause Solution

2001 High

string input voltage

2002 DC arc

fault

Major The PV array is not

properly congured. Excessive PV modules are connected in series to the PV string, and therefore the PV string open-circuit voltage exceeds the maximum inverter operating voltage.

● Cause ID 1: PV strings 1

and 2

● Cause ID 2: PV strings 3

and 4

● Cause ID 3: PV strings 5

and 6

● Cause ID 4: PV strings 7

and 8

Major The PV string power cables

arc or are in poor contact.

● Cause ID 1: PV strings 1

and 2

● Cause ID 2: PV strings 3

and 4

● Cause ID 3: PV strings 5

and 6

● Cause ID 4: PV strings 7

and 8

Reduce the number of PV modules connected in series to the PV string until the PV string open-circuit voltage is less than or equal to the maximum inverter operating voltage. After the PV string

conguration is

corrected, the alarm disappears.

Check whether the PV string cables arc or are in poor contact.

2003 DC arc

fault

Major The PV string power cables

arc or are in poor contact.

Check whether the PV string cables arc or are in poor contact.

Cause ID 1–8: PV strings 1– 8

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2009 String

ShortCircuited to Ground

2011 String

reverse connecti on

Major 1. The PV array is short-

circuited to ground.

2. The ambient

environment of PV arrays is moist.

Major The PV string polarity is

reversed.

Cause ID 1–8: PV strings 1– 8

1. Check the output-to-ground impedance of the PV array. If a short circuit or inadequate insulation is detected, rectify it.

2. If auto recovery from stringto-ground short-circuit protection is disabled, check and rectify the preceding faults, and manually clear the alarm.

3. If auto recovery from stringto-ground short-circuit protection is enabled, the alarm will be automatically cleared after fault recovery.

1. Check whether the PV string is connected to the device in reverse polarity. If yes, wait until the PV string current decreases to below 0.5 A, set DC SWITCH to OFF, and adjust the PV string polarity.

2. If the fault persists, reset the device on the local maintenance app or WebUI of the upper-layer controller. Alternatively, you can turn

o

the AC and DC switches, wait for 5 minutes, and then turn on the AC and DC switches.

2012 String

current backfeed

Warning The number of PV modules

connected in series to the PV string is insucient. As a result, the terminal voltage is lower than that of other strings.

Cause ID 1–8: PV strings 1– 8

1. Check whether the number of PV modules connected in series to the PV string is less than that of other PV strings. If yes, wait until the PV string current drops below 0.5 A,

o all DC switches, and

turn adjust the number of PV modules in the PV string.

2. Check whether the opencircuit voltage of the PV string is abnormal.

3. Check whether the PV string is shaded.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2021 AFCI

self-

Major Cause ID = 1, 2

The AFCI self-check fails.

check failure

2031 Phase

wire shortcircuited to PE

Major Cause ID = 1

The impedance of the output phase wire to PE is low or the output phase wire is short-circuited to PE.

2032 Grid loss Major Cause ID = 1

● Power grid outage occurs.

● The AC circuit is disconnected or the AC switch is

2033 Grid

undervol tage

Major Cause ID = 1

The power grid voltage is below the lower threshold or the low-voltage duration has lasted for more than the value

specied by LVRT.

o.

Turn o the AC output switch and DC input switch, and then turn them on after 5 minutes. If the alarm persists, contact Huawei technical support.

Check the impedance of the output phase wire to PE, locate the position with low impedance, and rectify the fault.

1. The alarm is cleared automatically after the power grid recovers.

2. Check whether the AC circuit is disconnected or the AC switch is

o.

1. If the alarm occurs occasionally, the power grid may be abnormal temporarily. The inverter automatically recovers after detecting that the power grid becomes normal.

2. If the alarm persists, check whether the power grid voltage is within the acceptable range. If not, contact the local power operator. If yes, modify the grid undervoltage protection threshold through the app, SmartLogger, or NMS with the consent of the local power operator.

3. If the alarm persists for a long time, check the AC circuit breaker and AC output power cable.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2034 Grid

overvolt age

Major Cause ID = 1

The power grid voltage exceeds the upper threshold or the high voltage duration has lasted for more than the value specied by HVRT.

1. If the alarm occurs occasionally, the power grid may be abnormal temporarily. The device automatically recovers after detecting that the power grid becomes normal.

2. If the alarm occurs frequently, check whether the power grid voltage is within the allowed range. If not, contact the local power operator. If yes, modify the power grid overvoltage protection threshold after obtaining the consent of the local power operator.

3. Check whether the peak voltage of the power grid is too high. If the fault occurs frequently and persists for a long time, contact the local power operator.

2035

Grid volt. Imbalan ce

Major Cause ID = 1

The dierence between power grid phase voltages exceeds the upper threshold.

1. If the alarm occurs occasionally, the power grid may be abnormal temporarily. The inverter automatically recovers after detecting that the power grid becomes normal.

2. If the alarm persists, check whether the power grid voltage is within the acceptable range. If not, contact the local power operator.

3. If the alarm lasts for a long time, check the AC output power cable connection.

4. If the AC output power cable is correctly connected, yet the alarm persists and

aects the energy yield of the PV plant, contact the local power operator.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2036 Grid

overfreq uency

2037 Grid

underfre quency

Major Cause ID = 1

Power grid exception: The actual power grid frequency is higher than the requirements for the local power grid code.

Major Cause ID = 1

Power grid exception: The actual power grid frequency is lower than the requirements for the local power grid code.

1. If the alarm occurs occasionally, the power grid may be abnormal temporarily. The inverter automatically recovers after detecting that the power grid becomes normal.

2. If the alarm persists, check whether the power grid frequency is within the acceptable range. If not, contact the local power operator. If yes, modify the grid overfrequency protection threshold through the app, SmartLogger, or NMS with the consent of the local power operator.

1. If the alarm occurs occasionally, the power grid may be abnormal temporarily. The inverter automatically recovers after detecting that the power grid becomes normal.

2. If the alarm persists, check whether the power grid frequency is within the acceptable range. If not, contact the local power operator. If yes, modify the grid underfrequency protection threshold through the app, SmartLogger, or NMS with the consent of the local power operator.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2038 Unstable

grid frequenc y

2039 AC

Overcurr ent

Major Cause ID = 1

Power grid exception: The actual change rate of the power grid frequency does not meet the requirements for the local power grid code.

Major Cause ID = 1

The grid experiences a dramatic voltage drop or is short-circuited. As a result, the transient AC current of the device exceeds the upper threshold and triggers protection.

1. If the alarm occurs occasionally, the power grid may be abnormal temporarily. The inverter automatically recovers after detecting that the power grid becomes normal.

2. If the alarm persists, check whether the power grid frequency is within the acceptable range. If not, contact the local power operator.

1. The device detects its external

working conditions in real time. After the fault is rectied, the device automatically recovers.

2. If the alarm occurs frequently

aects the operation of the

and power plant, check whether AC short circuit exists. If the fault persists, contact your dealer or technical support.

2040 Output

DC compon ent overhigh

2051 Abnorm

al residual current

Major Cause ID = 1

The DC component of the inverter output current exceeds the upper threshold.

Major Cause ID = 1

The insulation impedance of the input side to PE decreases when the inverter is operating.

1. The inverter monitors its external operating conditions in real time and automatically recovers after the fault is rectied.

2. If the alarm persists and aects the energy yield of the PV plant, contact your dealer or Huawei technical support.

1. If the alarm occurs accidentally, the external power cable may be abnormal temporarily. The inverter automatically recovers after the fault is

rectied.

2. If the alarm persists or lasts a long time, check whether the impedance between the PV string and ground is too low.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2061 Abnorm

al groundin g

Major Cause ID = 1

● The neutral wire or PE cable of the inverter is not connected.

● The output mode set for the inverter is inconsistent with the cable connection mode.

Power o the inverter (turn o the AC output switch and DC input switch, and wait for a period of time. For details about the wait time, see the description on the device safety warning label), and then perform the following operations:

1. Check whether the PE cable for the inverter is connected properly.

2. If the inverter is connected to a TN power grid, check whether the neutral wire is properly connected and whether the voltage of the neutral wire to ground is normal.

3. After the inverter is powered on, check whether the output mode set for the inverter is consistent with the output cable connection mode.

2062

Low insulatio n resistanc e

Major Cause ID = 1

● The PV array is shortcircuited with PE.

● The PV string has been in a moist environment for a long time and the circuit is not well insulated to ground.

1. Check the impedance between the PV string and the PE cable. If a short circuit occurs, rectify the fault.

2. Check whether the PE cable of the inverter is correctly connected.

3. If you have

conrmed that

the impedance is lower than

specied protection

the threshold in a cloudy or rainy environment, log in to the app, SmartLogger, or NMS and set Insulation resistance protection threshold.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2063 Cabinet

overtem perature

2064 Device

fault

Minor Cause ID = 1

● The inverter is installed in a place with poor ventilation.

● The ambient temperature exceeds the upper threshold.

● The inverter is not operating properly.

Major Cause ID = 1–15

An unrecoverable fault occurs on a circuit inside the inverter.

1. Check the ventilation and ambient temperature at the inverter installation position.

2. If the ventilation is poor or the ambient temperature exceeds the upper threshold, improve the ventilation and heat dissipation.

3. If both the ventilation and ambient temperature meet requirements yet the alarm persists, contact your dealer or Huawei technical support.

Turn o the AC output switch and DC input switch, and then turn them on after 5 minutes. If the alarm persists, contact your dealer or Huawei technical support.

NOTICE

Cause ID = 1: Perform the preceding operations when the PV string current is less than 1 A.

2065 Upgrade

failed or version mismatc h

2066 License

expired

Minor Cause ID = 1–6

The upgrade is not completed normally.

Warning Cause ID = 1

● The privilege license has entered the grace period.

● The privilege feature is about to expire.

1. Perform an upgrade again.

2. If the upgrade fails several times, contact your dealer or Huawei technical support.

1. Apply for a new license.

2. Load a new certicate.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2067 Faulty

power collector

61440 Faulty

monitori ng unit

Major Cause ID = 1

The power meter is disconnected.

Minor Cause ID = 1

● The ash memory is

insucient.

● The ash memory has bad sectors.

1. Check whether the congured power meter model is the same as the actual model.

2. Check whether the communications parameters of the power meter are the same as the RS485 congurations of the inverter.

3. Check whether the power meter is powered on and whether the RS485 communications cable is connected.

Turn o the AC output switch and DC input switch, and then turn them on after 5 minutes. If the alarm persists, replace the monitoring board or contact your dealer or Huawei technical support.

2072 Transient

AC overvolt age

Major Cause ID = 1

The inverter detects that the phase voltage exceeds the transient AC overvoltage protection threshold.

1. If the voltage at the grid connection point is too high, contact the local power operator.

2. If you have conrmed that the voltage at the grid connection point exceeds the upper threshold and obtained consent from the local power operator, modify the overvoltage protection thresholds.

3. Check whether the peak grid voltage exceeds the upper threshold.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2080 Abnorm

al PV module

congur ation

Major ● Cause ID = 1

The number of optimizers connected to the inverter exceeds the upper threshold.

● Cause ID = 2 The PV string power or the number of optimizers connected in series in a PV string exceeds the upper threshold.

● Cause ID = 3 The number of optimizers connected in series in a PV string is less than the lower threshold, the PV string output is reversely connected, or the output of some optimizers in the PV string is reversely connected.

● Cause ID = 4 The number of PV strings connected to the inverter exceeds the upper threshold.

● Cause ID = 5 The PV string output is reversely connected or the PV string output is short-circuited.

● Cause ID = 6 Under the same MPPT, the number of optimizers connected in series in PV strings connected in parallel is dierent, or the output of some optimizers in PV strings is reversely connected.

● Cause ID = 7 The optimizer installation position is changed, or PV strings are combined or exchanged.

Check whether the total number of PV modules, number of PV modules in a PV string, and number of PV strings meet requirements and whether the PV module output is reversely connected.

● Cause ID 1: Check whether the total number of optimizers exceeds the upper threshold.

● Cause ID 2: Check whether the PV string power or the number of PV strings connected in series exceeds the upper threshold.

● Cause ID 3:

1. Check whether the

number of optimizers connected in series in the PV string is below the lower threshold.

2. Check whether the PV

string output is reversely connected.

3. Check whether the PV

string output is disconnected.

4. Check whether the

optimizer output extension cable is correct (positive connector at one end and negative connector at the other).

● Cause ID 4: Check whether the number of PV strings exceeds the upper threshold.

● Cause ID 5: Check whether the PV string output is reversely connected or shortcircuited.

● Cause ID 6:

1. Check whether the

number of optimizers connected in series in the PV strings connected in

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

● Cause ID = 8 The sunlight is weak or changes abnormally.

● Cause ID = 9 In partial conguration scenarios, the PV string voltage exceeds the inverter input voltage

specications.

parallel under the same MPPT is the same.

2. Check whether the optimizer output extension cable is correct (positive connector at one end and negative connector at the other).

● Cause ID 7: When the sunlight is normal, perform the optimizer search function again.

● Cause ID 8: When the sunlight is normal, perform the optimizer search function again.

● Cause ID 9: Calculate the PV string voltage based on the number of PV modules in the string and check whether the string voltage exceeds the upper threshold of the inverter input voltage.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2085 Built-in

PID operatio n abnorma l

Minor Cause ID = 1, 2

● The output resistance of PV arrays to ground is low.

● The system insulation resistance is low.

● Cause ID = 1

1. Turn o the AC output switch and DC input switch, wait for a period of time (for details about the wait time, see the description on the device safety warning label), and then turn on the DC input switch and AC output switch.

2. If the alarm persists, contact your dealer or Huawei technical support.

● Cause ID = 2

1. Check the impedance between the PV array output and the ground. If a short circuit occurs or the insulation is insucient, rectify the fault.

2. If the alarm persists, contact your dealer or Huawei technical support.

2090

Abnorm al active power scheduli ng instructi on

Major Cause ID = 1

● The DI input is abnormal.

● The DI input is inconsistent with the

conguration.

1. Check whether the cables are connected correctly to the DI ports.

2. On the DI active scheduling screen under the dry contact scheduling settings, view the DI signal

conguration

mapping table. Contact the power grid company to check whether the

congurations in the mapping table are complete and meet the requirements.

NO TE

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 8 Maintenance

ID Name Severity Cause Solution

2091 Abnorm

al reactive power scheduli ng instructi on

Major Cause ID = 1

● The DI input is abnormal.

● The DI input is inconsistent with the

conguration.

1. Check whether the cables are connected correctly to the DI ports.

2. On the DI reactive power scheduling screen under the dry contact scheduling settings, view the DI signal conguration mapping table. Contact the power grid company to check whether

congurations in the

the mapping table are complete and meet the requirements.

Contact your dealer or Huawei technical support if all troubleshooting procedures listed above are completed and the fault still exists.

NO TICE

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 9 Handling the Inverter

9 Handling the Inverter

9.1 Removing the SUN2000

Before removing the SUN2000, disconnect both AC and DC connections.

Perform the following operations to remove the SUN2000:

1. Disconnect all cables from the SUN2000, including RS485 communications cables, DC input power cables, AC output power cables, and PGND cables.

2. Remove the SUN2000 from the mounting bracket.

3. Remove the mounting bracket.

9.2 Packing the SUN2000

● If the original packing materials are available, put the SUN2000 inside them and then seal them by using adhesive tape.

● If the original packing materials are not available, put the SUN2000 inside a suitable cardboard box and seal it properly.

9.3 Disposing of the SUN2000

If the SUN2000 service life expires, dispose of it according to the local disposal rules for electrical equipment waste.

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 10 Technical Specications

10 Technical Specications

Eciency

Technical

Specications

Peak

eciency

European

eciency

Input

Technical

Specications

Recommende d maximum DC input power

Maximum input voltage

SUN2000-20K TL-M3

97.1% 98.65%/400 V

96.7% 98.4%/400 V

SUN2000-20K TL-M3

30,000 W 44,850 W 45,000 W 54,000 W 60,000 W

800 V 1100 V

SUN2000-29. 9KTL-M3

98.75%/480 V

98.45%/480 V

SUN2000-29. 9KTL-M3

SUN2000-30K TL-M3

98.65%/400 V

98.75%/480 V

98.4%/400 V

98.45%/480 V

SUN2000-30K TL-M3

SUN2000-36K TL-M3

98.65%/400 V

98.75%/480 V

98.4%/400 V

98.5%/480 V

SUN2000-36K TL-M3

SUN2000-40K TL-M3

98.65%/400 V

98.75%/480 V

98.4%/400 V

98.5%/480 V

SUN2000-40K TL-M3

Maximum input current (per MPPT)

Maximum short-circuit current (per MPPT)

Minimum startup voltage

26 A

40 A

200 V

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 10 Technical Specications

Technical

Specications

MPP voltage range

Full power MPPT voltage

range

Rated input voltage

Maximum number of inputs

SUN2000-20K TL-M3

SUN2000-29. 9KTL-M3

200–750 V 200–1000 V

300–550 V 500–800

V/400 V AC

625–850 V/480 V AC

350 V 600 V (400 V

AC)

720 V (480 V AC)

SUN2000-30K TL-M3

500–800 V/ (380 V AC, 400 V AC)

625–850 V/440 V AC

625–850 V/480 V AC

600 V (380 V AC, 400 V AC)

650 V (440 V AC)

720 V (480 V AC)

SUN2000-36K TL-M3

520–800 V/ (380 V AC, 400 V AC)

625–850 V/440 V AC

625–850 V/480 V AC

600 V (380 V AC, 400 V AC)

650 V (440 V AC)

720 V (480 V AC)

SUN2000-40K TL-M3

540–800 V/ (380 V AC, 400 V AC)

625–850 V/440 V AC

625–850 V/480 V AC

600 V (380 V AC, 400 V AC)

650 V (440 V AC)

720 V (480 V AC)

Number of

MPPTs

Note a: The maximum input voltage is the maximum DC input voltage that the SUN2000 can withstand. If the input voltage exceeds this value, the SUN2000 may be damaged.

Note b: PV strings connecting to the same MPPT must contain the same quantity and model of PV modules. It is recommended that the PV string voltage be higher than the lower threshold of the full-load MPPT voltage.

Output

Technical

Specications

Rated output power

Maximum apparent power

Maximum active power (cosφ = 1)

SUN2000-20K TL-M3

SUN2000-29. 9KTL-M3

SUN2000-30K TL-M3

SUN2000-36K TL-M3

SUN2000-40K TL-M3

20,000 W 29,900 W 30,000 W 36,000 W 40,000 W

22,000 VA 29,900 VA

22,000 W 29,900 W

33,000 VA

33,000 W

40,000 VA 44,000 VA

40,000 W 44,000 W

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)M3 User Manual 10 Technical Specications

Technical

Specications

Rated output voltage

Maximum output voltage at long-term operation

Rated output current

SUN2000-20K TL-M3

127 V AC (220 V AC), 3W/N +PE

230 V AC (400 V AC), 3W/N +PE

SUN2000-29. 9KTL-M3

230 V AC (400 V AC), 3W/N +PE

277 V AC (480 V AC), 3W+PE

SUN2000-30K TL-M3

220 V AC (380 V AC), 3W/N +PE

230 V AC (400 V AC), 3W/N +PE

254 V AC (440 V AC), 3W+PE

277 V AC (480 V AC), 3W+PE

See standards about the local power grid.

52.5 A (220 V AC)

28.9 A (400 V AC)

43.2 A (400 V AC)

36.0 A (480 V AC)

45.6 A (380 V AC)

43.3 A (400 V AC)

39.4 A (440 V AC)

36.1 A (480 V AC)

SUN2000-36K TL-M3

220 V AC (380 V AC), 3W/N +PE

230 V AC (400 V AC), 3W/N +PE

254 V AC (440 V AC), 3W+PE

277 V AC (480 V AC), 3W+PE

54.7 A (380 V AC)

52.0 A (400 V AC)

47.3 A (440 V AC)

43.3 A (480 V AC)

SUN2000-40K TL-M3

220 V AC (380 V AC), 3W/N +PE

230 V AC (400 V AC), 3W/N +PE

254 V AC (440 V AC), 3W+PE

277 V AC (480 V AC), 3W+PE

60.8 A (380 V AC)

57.8 A (400 V AC)

52.5 A (440 V AC)

48.1 A (480 V AC)

Maximum output current

Output

58.0 A (220 V AC)

31.9 A (400 V AC)

50 Hz/60 Hz

43.2 A (400 V AC)

36.0 A (480 V AC)

voltage frequency

Power factor 0.8 leading–0.8 lagging

Output DC

< 0.5% of the rated output component DCI

50.4 A (380 V AC)

47.9 A (400 V AC)

43.5 A (440 V AC)

39.9 A (480 V AC)

61.1 A (380 V AC)

58.0 A (400 V AC)

52.8 A (440 V AC) (Mexico)

48.4 A (480 V AC)

67.2 A (380 V AC)

63.8 A (400 V AC)

58.0 A (440 V AC) (Mexico)

53.2 A (480 V AC)

HUAWEI SUN2000-36KTL-M3, SUN2000-30KTL-M3, SUN2000-40KTL-M3 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

About This Document

Contents

1 Safety Information

1.1 Personal Safety

1.2 Electrical Safety

1.3 Environment Requirements

1.4 Mechanical Safety

2 Overview

2.1 Product Introduction

2.2 Appearance

2.3 Label Description

2.4 Working Principles

2.4.1 Circuit Diagram

2.4.2 Working Modes

3 SUN2000 Storage

4 Installation

4.1 Checking Before Installation

4.2 Tool Preparation

4.3 Selecting an Installation Position

4.4 Moving the SUN2000

4.5 Installing the Mounting Bracket

4.5.1 Support-mounted Installation

4.5.2 Wall-mounted Installation

4.6 Installing a SUN2000

5 Electrical Connections

5.1 Precautions

5.2 Preparing Cables

5.3 Connecting the PE Cable

5.4 Connecting the AC Output Power Cable

5.5 Installing the DC Input Power Cable

5.5.1 Cable Connection Description

5.5.2 Connecting Cables to Amphenol Helios H4 Connectors

5.5.3 Connecting Cables to Staubli MC4 Connectors

5.6 (Optional) Installing the Smart Dongle

5.7 Connecting the Signal Cable

5.7.1 Communication Modes

5.7.2 (Optional) Connecting the RS485 Communications Cable to the SUN2000

5.7.3 (Optional) Connecting the RS485 Communications Cable to the Power Meter

5.7.4 (Optional) Connecting the Power Grid Scheduling Signal Cable

5.7.5 (Optional) Connecting the Rapid Shutdown Signal Cable

6 Commissioning

6.1 Checking Before Power-On

6.2 System Power-On

7 Man-Machine Interaction

7.1 Scenario in Which SUN2000s Are Connected to the FusionSolar Smart PV Management System

7.1.1 (Optional) Registering an Installer Account

7.1.2 Creating a PV Plant and a User

7.1.3 SmartLogger Networking Scenario

7.2 Scenario in Which SUN2000s Are Connected to Other Management Systems

7.3 Energy Control

7.3.1 Grid-tied Point Control

7.3.2 Apparent Power Control on the Inverter Output Side

8 Maintenance

8.2 Routine Maintenance

8.3 Troubleshooting

9 Handling the Inverter

9.1 Removing the SUN2000

9.2 Packing the SUN2000

9.3 Disposing of the SUN2000