Huawei SUN2000 Series User manual

SUN2000-4.95KTL-JPL0
User Manual
Issue
03
Date
2020-06-03
HUAWEI TECHNOLOGIES CO., LTD.

Issue 03 (2020-06-03)
Copyright © Huawei Technologies Co., Ltd.
i
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 specified 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 effort 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

SUN2000-4.95KTL-JPL0
User Manual
About This Document
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About This Document
Purpose
This document describes the SUN2000-4.95KTL-JPL0 in terms of its installation, electrical
connection, commissioning, maintenance, and troubleshooting. Before installing and
operating the solar inverter, ensure that you are familiar with the features, functions, and
safety precautions provided in this document.
Intended Audience
This document is intended for:
Installers
Users
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, may 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.
Calls attention to important information, best practices and
tips.
NOTE is used to address information not related to personal
injury, equipment damage, and environment deterioration.

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Change History
Changes between document issues are cumulative. The latest document issue contains all the
changes made in earlier issues.
Issue 03 (2020-06-03)
Updated C Restoring the Factory Defaults of a Solar Inverter.
Issue 02 (2020-02-06)
Updated 5.5 Connecting a Signal Cable.
Issue 01 (2019-11-01)
This issue is used for first office application (FOA).

SUN2000-4.95KTL-JPL0
User Manual
Contents
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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 Product Overview .........................................................................................................................7
2.1 Overview ......................................................................................................................................................................7
2.2 Appearance ...................................................................................................................................................................9
2.3 Label Description........................................................................................................................................................10
2.4 Working Principle.......................................................................................................................................................12
3 Storage...........................................................................................................................................15
4 Installation....................................................................................................................................16
4.1 Checking Before Installation ......................................................................................................................................16
4.2 Tools and Instruments.................................................................................................................................................17
4.3 Determining the Installation Position .........................................................................................................................18
4.4 Installing the Mounting Bracket .................................................................................................................................23
4.4.1 Wall-mounted Installation........................................................................................................................................24
4.4.2 Support-mounted Installation ..................................................................................................................................25
4.5 Installing a Solar Inverter ...........................................................................................................................................27
5 Electrical Connections................................................................................................................29
5.1 Preparing Cables.........................................................................................................................................................30
5.2 Connecting a PE Cable ...............................................................................................................................................30
5.3 Connecting an AC Output Power Cable .....................................................................................................................32
5.4 Installing DC Input Power Cables ..............................................................................................................................35
5.5 Connecting a Signal Cable..........................................................................................................................................39
6 System Commissioning .............................................................................................................42

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6.1 Checking Before Power-On........................................................................................................................................42
6.2 Powering On the System.............................................................................................................................................43
6.3 Powering Off the System............................................................................................................................................43
7 System Maintenance...................................................................................................................45
7.1 Routine Maintenance..................................................................................................................................................45
7.2 Troubleshooting..........................................................................................................................................................46
8 Handling a Solar Inverter..........................................................................................................52
8.1 Removing a Solar Inverter..........................................................................................................................................52
8.2 Packing a Solar Inverter..............................................................................................................................................52
8.3 Disposing of a Solar Inverter......................................................................................................................................52
A Technical Specifications...........................................................................................................53
B Grid Code.....................................................................................................................................56
C Restoring the Factory Defaults of a Solar Inverter ..............................................................57
D Acronyms and Abbreviations..................................................................................................59

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1 Safety Information
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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 specifications.
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 specified in this document
Installation or use in environments which are not specified in relevant international or
national standards
Unauthorized modifications 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, fire, and storms
Damage caused during transportation by the customer
Storage conditions that do not meet the requirements specified in this document
General Requirements

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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 fire, immediately leave the building or the equipment area, and turn on
the fire alarm bell or make an emergency call. Do not enter the building on fire 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 qualified professionals or trained personnel are allowed to install, operate, and
maintain the equipment.
Only qualified 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 qualifications in special
operations such as high-voltage operations, working at heights, and operations of special
equipment.
Only professionals or authorized personnel are allowed to replace the equipment or
components (including software).

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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 first 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
Before connecting cables, ensure that the equipment is intact. Otherwise, electric shocks or
fire 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
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
fire or personal injury.
Before making electrical connections, switch off the disconnector on the upstream device
to cut off the power supply if people may contact energized components.
Before connecting a power cable, check that the label on the power cable is correct.

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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 different 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 specifications.
1.4 Installation Environment Requirements
Ensure that the equipment is installed in a well ventilated environment.
To prevent fire 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 flammable 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 fiberglass 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
firm.
Before using a ladder, check that it is intact and confirm 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 floor is 75 degrees, as shown in the following figure. An angle rule can be
used to measure the angle.