Huawei SUN2000 Series User manual

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual
Issue 01
Date 2020-10-15
HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2020. All rights reserved.
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
Issue 01 (2020-10-15) Copyright © Huawei Technologies Co., Ltd. i

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 (SUN2000 for
short) 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 dened as follows.
Symbol Remarks
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.
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual About this Document
Issue 01 (2020-10-15) Copyright © Huawei Technologies Co., Ltd. ii

Symbol Remarks
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.
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 01 (2020-10-15)
This issue is the rst ocial release.
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual About this Document
Issue 01 (2020-10-15) Copyright © Huawei Technologies Co., Ltd. iii

Contents
About this Document................................................................................................................. ii
1 Safety Information.................................................................................................................. 1
1.1 General Safety.......................................................................................................................................................................... 1
1.2 Personnel Requirements....................................................................................................................................................... 2
1.3 Electrical Safety........................................................................................................................................................................3
1.4 Installation Environment Requirements.......................................................................................................................... 4
1.5 Mechanical Safety................................................................................................................................................................... 4
1.6 Commissioning......................................................................................................................................................................... 5
1.7 Maintenance and Replacement..........................................................................................................................................6
2 Overview....................................................................................................................................7
2.1 Overview.................................................................................................................................................................................... 7
2.2 Appearance................................................................................................................................................................................ 9
2.3 Label Description.................................................................................................................................................................. 10
2.4 Working Principles................................................................................................................................................................ 12
2.4.1 Circuit Diagram.................................................................................................................................................................. 12
2.4.2 Working Modes.................................................................................................................................................................. 13
3 SUN2000 Storage...................................................................................................................15
4 Installation..............................................................................................................................16
4.1 Checking Before Installation............................................................................................................................................. 16
4.2 Tool Preparation.................................................................................................................................................................... 17
4.3 Selecting an Installation Position.................................................................................................................................... 18
4.4 Moving the SUN2000.......................................................................................................................................................... 21
4.5 Installing the Mounting Bracket...................................................................................................................................... 22
4.5.1 Support-mounted Installation.......................................................................................................................................23
4.5.2 Wall-mounted Installation............................................................................................................................................. 24
4.6 Installing a SUN2000........................................................................................................................................................... 25
5 Electrical Connections.......................................................................................................... 27
5.1 Precautions.............................................................................................................................................................................. 27
5.2 Preparing Cables................................................................................................................................................................... 28
5.3 Connecting the PE Cable.................................................................................................................................................... 30
5.4 Connecting the AC Output Power Cable...................................................................................................................... 32
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual Contents
Issue 01 (2020-10-15) Copyright © Huawei Technologies Co., Ltd. iv

5.5 Installing the DC Input Power Cable.............................................................................................................................. 34
5.6 (Optional) Installing the Smart Dongle........................................................................................................................ 37
5.7 Connecting the Signal Cable............................................................................................................................................. 39
5.7.1 Communication Modes................................................................................................................................................... 41
5.7.2 (Optional) Connecting the RS485 Communications Cable to the SUN2000............................................... 42
5.7.3 (Optional) Connecting the RS485 Communications Cable to the Power Meter.........................................43
5.7.4 (Optional) Connecting the Power Grid Scheduling Signal Cable..................................................................... 44
5.7.5 (Optional) Connecting the Rapid Shutdown Signal Cable................................................................................. 45
6 Commissioning.......................................................................................................................47
6.1 Checking Before Power-On................................................................................................................................................47
6.2 System Power-On................................................................................................................................................................. 48
7 Man-Machine Interaction....................................................................................................50
7.1 Scenario in Which SUN2000s Are Connected to the FusionSolar Smart PV Management System.........51
7.1.1 (Optional) Registering an Installer Account............................................................................................................ 51
7.1.2 Creating a PV Plant and a User.................................................................................................................................... 52
7.1.3 SmartLogger Networking Scenario............................................................................................................................. 52
7.2 Scenario in Which SUN2000s Are Connected to Other Management Systems..............................................53
8 Maintenance...........................................................................................................................54
8.1 System Power-O.................................................................................................................................................................54
8.2 Routine Maintenance.......................................................................................................................................................... 55
8.3 Troubleshooting..................................................................................................................................................................... 55
9 Handling the Inverter...........................................................................................................66
9.1 Removing the SUN2000..................................................................................................................................................... 66
9.2 Packing the SUN2000..........................................................................................................................................................66
9.3 Disposing of the SUN2000................................................................................................................................................ 66
10 Technical Specications.....................................................................................................67
A Grid Code................................................................................................................................ 73
B Device Commissioning......................................................................................................... 76
C Setting Power Adjustment Parameters........................................................................... 79
D Built-in PID Recovery........................................................................................................... 80
E Rapid Shutdown.................................................................................................................... 82
F Resetting Password............................................................................................................... 83
G Setting Dry Contact Scheduling Parameters..................................................................84
H AFCI.......................................................................................................................................... 85
I Smart I-V Curve Diagnosis....................................................................................................88
J Acronyms and Abbreviations...............................................................................................89
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual Contents
Issue 01 (2020-10-15) Copyright © Huawei Technologies Co., Ltd. v

1 Safety Information
1.1 General Safety
Statement
Before installing, operating, and maintaining the equipment, read this document
and observe all the safety instructions on the equipment and in this document.
The "NOTICE", "CAUTION", "WARNING", and "DANGER" statements in this
document do not cover all the safety instructions. They are only supplements to
the safety instructions. Huawei will not be liable for any consequence caused by
the violation of general safety requirements or design, production, and usage
safety standards.
Ensure that the equipment is used in environments that meet its design
specications. Otherwise, the equipment may become faulty, and the resulting
equipment malfunction, component damage, personal injuries, or property
damage are not covered under the warranty.
Follow local laws and regulations when installing, operating, or maintaining the
equipment. The safety instructions in this document are only supplements to local
laws and regulations.
Huawei will not be liable for any consequences of the following circumstances:
● Operation beyond the conditions specied in this document
● Installation or use in environments which are not specied in relevant
international or national standards
● Unauthorized modications to the product or software code or removal of the
product
● Failure to follow the operation instructions and safety precautions on the
product and in this document
● Equipment damage due to force majeure, such as earthquakes, re, and
storms
● Damage caused during transportation by the customer
● Storage conditions that do not meet the requirements specied in this
document
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 1 Safety Information
Issue 01 (2020-10-15) Copyright © Huawei Technologies Co., Ltd. 1

General Requirements
D ANGER
Do not work with power on during installation.
● 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, and performing outdoor installation) in harsh
weather conditions such as lightning, rain, snow, and level 6 or stronger wind.
● After installing the equipment, remove idle packing materials such as cartons,
foam, plastics, and cable ties from the equipment area.
● In the case of a re, immediately leave the building or the equipment area,
and turn on the re alarm bell or make an emergency call. Do not enter the
building on re in any case.
● Do not scrawl, damage, or block any warning label on the equipment.
● Tighten the screws using tools when installing the equipment.
● Understand the components and functioning of a grid-tied PV power system
and relevant local standards.
● Repaint any paint scratches caused during equipment transportation or
installation in a timely manner. Equipment with scratches cannot be exposed
to an outdoor environment for a long period of time.
● Do not open the host panel of the equipment.
Personal Safety
● If there is a probability of personal injury or equipment damage during
operations on the equipment, immediately stop the operations, report the
case to the supervisor, and take feasible protective measures.
● Use tools correctly to avoid hurting people or damaging the equipment.
● Do not touch the energized equipment, as the enclosure is hot.
1.2 Personnel Requirements
● Personnel who plan to install or maintain Huawei equipment must receive
thorough training, understand all necessary safety precautions, and be able to
correctly perform all operations.
● Only qualied professionals or trained personnel are allowed to install,
operate, and maintain the equipment.
● Only qualied professionals are allowed to remove safety facilities and inspect
the equipment.
● Personnel who will operate the equipment, including operators, trained
personnel, and professionals, should possess the local national required
qualications in special operations such as high-voltage operations, working
at heights, and operations of special equipment.
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 1 Safety Information
Issue 01 (2020-10-15) Copyright © Huawei Technologies Co., Ltd. 2

● Only professionals or authorized personnel are allowed to replace the
equipment or components (including software).
NO TE
● Professionals: personnel who are trained or experienced in equipment operations
and are clear of the sources and degree of various potential hazards in equipment
installation, operation, and maintenance
● Trained personnel: personnel who are technically trained, 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
● Operators: operation personnel who may come in contact with the equipment,
except trained personnel and professionals
1.3 Electrical Safety
Grounding
● 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.
● Do not damage the ground conductor.
● Do not operate the equipment in the absence of a properly installed ground
conductor.
● Ensure that the equipment is connected permanently to the protective
ground. Before operating the equipment, check its electrical connection to
ensure that it is securely grounded.
General Requirements
D ANGER
Before connecting cables, ensure that the equipment is intact. Otherwise, electric
shocks or re may occur.
● Ensure that all electrical connections comply with local electrical standards.
● Obtain approval from the local electric utility company before using the
equipment in grid-tied mode.
● Ensure that the cables you prepared meet local regulations.
● Use dedicated insulated tools when performing high-voltage operations.
AC and DC Power
D ANGER
Do not connect or disconnect power cables with power on. Transient contact
between the core of the power cable and the conductor will generate electric arcs
or sparks, which may cause re or personal injury.
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 1 Safety Information
Issue 01 (2020-10-15) Copyright © Huawei Technologies Co., Ltd. 3

● Before making electrical connections, switch o the disconnector on the
upstream device to cut o the power supply if people may contact energized
components.
● Before connecting a power cable, check that the label on the power cable is
correct.
● If the equipment has multiple inputs, disconnect all the inputs before
operating the equipment.
Cabling
● When routing cables, ensure that a distance of at least 30 mm exists between
the cables and heat-generating components or areas. This prevents damage
to the insulation layer of the cables.
● Bind cables of the same type together. When routing cables of dierent types,
ensure that they are at least 30 mm away from each other.
● Ensure that the cables used in a grid-tied PV power system are properly
connected and insulated and meet specications.
1.4 Installation Environment Requirements
● Ensure that the equipment is installed in a well ventilated environment.
● To prevent re due to high temperature, ensure that the ventilation vents or
heat dissipation system are not blocked when the equipment is running.
● Do not expose the equipment to ammable or explosive gas or smoke. Do
not perform any operation on the equipment in such environments.
1.5 Mechanical Safety
Using Ladders
● Use wooden or berglass ladders when you need to perform live working at
heights.
● When a step ladder is used, ensure that the pull ropes are secured and the
ladder is held rm.
● Before using a ladder, check that it is intact and conrm its load bearing
capacity. Do not overload it.
● Ensure that the wider end of the ladder is at the bottom, or protective
measures have been taken at the bottom to prevent the ladder from sliding.
● Ensure that the ladder is securely positioned. The recommended angle for a
ladder against the oor is 75 degrees, as shown in the following gure. An
angle rule can be used to measure the angle.
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 1 Safety Information
Issue 01 (2020-10-15) Copyright © Huawei Technologies Co., Ltd. 4