Huawei SUN2000-50KTL-M0 User manual

SUN2000-(50KTL, 60KTL, 65KTL)-M0
User Manual
Issue 06
Date 2020-07-07
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 06 (2020-07-07) Copyright © Huawei Technologies Co., Ltd. i

About This Document
Purpose
This document describes the SUN2000-50KTL-M0, SUN2000-60KTL-M0 and
SUN2000-65KTL-M0 (SUN2000 for short) in terms of its 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 intended for photovoltaic (PV) plant personnel and electrical
technicians.
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.
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User Manual About This Document
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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 updates made in previous issues.
Issue 06 (2020-07-07)
Updated 4.3.1 Environment Requirements.
Issue 05 (2019-12-18)
Updated 3 Storage.
Added 6.4 Power-O for Troubleshooting.
Issue 04 (2019-06-30)
Updated 2.2 Appearance.
Updated 5 Electrical Connections.
Updated 6.2 Powering On the SUN2000.
Updated 10 Technical Specications.
Issue 03 (2019-04-16)
Updated 5.1 Precautions.
Updated Grid Codes.
Issue 02 (2018-07-30)
Updated 5.4 Installing the AC Output Power Cable.
Updated 7.2.1.3 Setting Feature Parameters.
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Updated 8.2 Troubleshooting.
Issue 01 (2018-04-20)
This issue is used for rst oce application (FOA).
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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 Overview....................................................................................................................................7
2.1 Introduction............................................................................................................................................................................... 7
2.2 Appearance................................................................................................................................................................................ 9
2.3 Label Description.................................................................................................................................................................. 12
2.3.1 Enclosure Labels.................................................................................................................................................................12
2.3.2 Product Nameplate...........................................................................................................................................................13
2.4 Working Principles................................................................................................................................................................ 14
2.4.1 Conceptual Diagram.........................................................................................................................................................14
2.4.2 Working Modes.................................................................................................................................................................. 15
3 Storage.....................................................................................................................................18
4 Installation..............................................................................................................................20
4.1 Checking Before Installation............................................................................................................................................. 20
4.2 Tools.......................................................................................................................................................................................... 20
4.3 Determining the Installation Position............................................................................................................................22
4.3.1 Environment Requirements............................................................................................................................................22
4.3.2 Space Requirements......................................................................................................................................................... 23
4.4 Installing the Mounting Bracket...................................................................................................................................... 25
4.4.1 Support-mounted Installation.......................................................................................................................................26
4.4.2 Wall-mounted Installation............................................................................................................................................. 28
4.5 Installing the SUN2000....................................................................................................................................................... 30
5 Electrical Connections.......................................................................................................... 35
5.1 Precautions.............................................................................................................................................................................. 35
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5.2 Crimping the OT Terminal................................................................................................................................................. 35
5.3 Opening the Maintenance Compartment Door......................................................................................................... 38
5.4 Installing the AC Output Power Cable.......................................................................................................................... 39
5.5 Connecting DC input power cables................................................................................................................................ 46
5.6 Installing the Communications Cable............................................................................................................................ 52
5.6.1 Communication Mode Description..............................................................................................................................52
5.6.2 Installing the RS485 Communications Cable........................................................................................................... 54
5.6.2.1 Terminal Block Connection......................................................................................................................................... 54
5.6.2.2 Connecting Cables to the RJ45 Network Port......................................................................................................57
5.6.3 (Optional) Installing the Solar Tracker Power Cable............................................................................................ 60
5.7 Closing the Maintenance Compartment Door........................................................................................................... 63
6 Commissioning.......................................................................................................................64
6.1 Checking Before Power-On................................................................................................................................................64
6.2 Powering On the SUN2000............................................................................................................................................... 65
6.3 Powering O the System................................................................................................................................................... 69
6.4 Power-O for Troubleshooting........................................................................................................................................ 70
7 Man-Machine Interactions.................................................................................................. 72
7.1 Operations with a USB Flash Drive................................................................................................................................ 72
7.1.1 Exporting Congurations................................................................................................................................................ 72
7.1.2 Importing Congurations............................................................................................................................................... 74
7.1.3 Exporting Data................................................................................................................................................................... 75
7.1.4 Upgrading............................................................................................................................................................................ 76
7.2 Operations with the SUN2000 App................................................................................................................................ 77
7.2.1 Operations Related to the Advanced User............................................................................................................... 78
7.2.1.1 Setting Grid Parameters...............................................................................................................................................78
7.2.1.2 Setting Protect Parameters......................................................................................................................................... 78
7.2.1.3 Setting Feature Parameters........................................................................................................................................ 79
7.2.2 Operations Related to the Special User.....................................................................................................................83
7.2.2.1 Setting Grid Parameters...............................................................................................................................................84
7.2.2.2 Setting Protection Parameters................................................................................................................................... 86
7.2.2.3 Setting Feature Parameters........................................................................................................................................ 88
7.2.2.4 Setting Power Adjustment Parameters...................................................................................................................90
8 Maintenance...........................................................................................................................94
8.1 Routine Maintenance.......................................................................................................................................................... 94
8.2 Troubleshooting..................................................................................................................................................................... 95
9 Handling the Inverter........................................................................................................ 103
9.1 Removing the SUN2000................................................................................................................................................... 103
9.2 Packing the SUN2000....................................................................................................................................................... 103
9.3 Disposing of the SUN2000.............................................................................................................................................. 103
10 Technical Specications...................................................................................................104
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A Grid Codes............................................................................................................................ 109
B Domain Name List of Management Systems...............................................................118
C Product User Lists............................................................................................................... 119
D Acronyms and Abbreviations........................................................................................... 120
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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
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
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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.
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● 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.
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● 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.
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● When climbing a ladder, take the following precautions to reduce risks and
ensure safety:
– Keep your body steady.
– Do not climb higher than the fourth rung of the ladder from the top.
– Ensure that your body's center of gravity does not shift outside the legs
of the ladder.
Drilling Holes
When drilling holes into a wall or oor, observe the following safety precautions:
● Wear goggles and protective gloves when drilling holes.
● When drilling holes, protect the equipment from shavings. After drilling, clean
up any shavings that have accumulated inside or outside the equipment.
Moving Heavy Objects
● Be cautious to avoid injury when moving heavy objects.
● When moving the equipment by hand, wear protective gloves to prevent
injuries.
1.6 Commissioning
When the equipment is powered on for the rst time, ensure that professional
personnel set parameters correctly. Incorrect settings may result in inconsistency
with local certication and aect the normal operation of the equipment.
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1.7 Maintenance and Replacement
D ANGER
High voltage generated by the equipment during operation may cause an electric
shock, which could result in death, serious injury, or serious property damage.
Prior to maintenance, power o the equipment and strictly comply with the safety
precautions in this document and relevant documents.
● Maintain the equipment with sucient knowledge of this document and
using proper tools and testing equipment.
● Before maintaining the equipment, power it o and follow the instructions on
the delayed discharge label to ensure that the equipment is powered o.
● Place temporary warning signs or erect fences to prevent unauthorized access
to the maintenance site.
● If the equipment is faulty, contact your dealer.
● The equipment can be powered on only after all faults are rectied. Failing to
do so may escalate faults or damage the equipment.
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2 Overview
2.1 Introduction
Function
The SUN2000 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 to the power
grid.
Models
Figure 2-1 Designation explanation of the SUN2000-60KTL-M0
Model Rated Output Power Rated Output Voltage
SUN2000-50KTL-M0 50 kW 380 V/400 V/415 V
SUN2000-60KTL-M0 60 kW 380 V/400 V/480 V
SUN2000-65KTL-M0 65 kW 480 V
Networking Application
The SUN2000 applies to grid-tied PV systems for commercial rooftops and large
PV plants. Typically, a grid-tied PV system consists of the PV string, SUN2000,
alternating current distribution unit (ACDU), and isolation transformer.
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Figure 2-2 Network diagram
(A) PV string (B) SN2000 (C) ACDU
(D) Isolation transformer (E) Power grid
Supported Power Grid
The SUN2000-50KTL-M0 and SUN2000-60KTL-M0 support the following power
grid modes: TN-S, TN-C, TN-C-S, TT, and IT. The SUN2000-65KTL-M0 supports only
IT grid mode.
Figure 2-3 Power grid modes
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2.2 Appearance
Dimensions
Front View
(1) Maintenance compartment door (2) LED (3) Host panel cover
LED Status Meaning
PV connection LED Steady green At least one PV string is
properly connected, and the DC
input voltage of the
corresponding MPPT circuit is
higher than or equal to 200 V.
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LED Status Meaning
O The SUN2000 disconnects from
all PV strings, or the DC input
voltage of each MPPT circuit is
less than 200 V.
Grid-tied LED Steady green The SUN2000 is exporting
power to the power grid.
O The SUN2000 is not exporting
power to the power grid.
Communication LED Blinking green (on for 0.2s and then
o for 0.2s)
The SUN2000 receives
communications data normally.
O The SUN2000 receives no
communications data for 10s.
Alarm/Maintenance
LED
Alarm status Blinking red at long
intervals (on for 1s
and then o for 4s)
The SUN2000 is generating a
warning alarm.
Blinking red at short
intervals (on for 0.5s
and then o for 0.5s)
The SUN2000 is generating a
minor alarm.
Steady red The SUN2000 is generating a
major alarm.
Local
maintenance
status
Blinking green at long
intervals (on for 1s
and then o for 1s)
Local maintenance is in
progress.
Blinking green at
short intervals (on for
0.125s and then o
for 0.125s)
Local maintenance fails.
Steady green Local maintenance is
successful.
NO TE
● Local maintenance refers to operations performed after a USB ash drive, Bluetooth
module, WLAN module or USB data cable is inserted into the USB port of the SUN2000.
For example, local maintenance includes conguration import and export using a USB
ash drive, and maintenance operations on the SUN2000 app installed on a device
connected to the SUN2000 by a Bluetooth module, WLAN module or USB data cable.
● If an alarm occurs during local maintenance, the Alarm/Maintenance LED shows the
local maintenance status rst. After the USB ash drive, Bluetooth module, WLAN
module or USB data cable is removed, the LED shows the alarm status.
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Bottom View
No. Component Silk Screen Description
1 Cable gland COM1, COM2, and
COM3
Inner diameter: 14–18 mm
2 DC switch 1 DC SWITCH 1 N/A
3 DC input terminals +/– Controlled by DC SWITCH 1
4 DC input terminals +/– Controlled by DC SWITCH 2
5 DC switch 2 DC SWITCH 2 N/A
6 Cable gland AC OUTPUT Inner diameter: 24–57 mm
7 Cable gland RESERVE Inner diameter: 14–18 mm
8 USB port USB N/A
Holes Reserved at the Side of the Enclosure
NO TE
There are two M6 tapped holes reserved on both sides of the enclosures, which are used for
installing an awning.
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2.3 Label Description
2.3.1 Enclosure Labels
Label Name Meaning
Running warning Potential hazards exist
after the SUN2000 is
powered on. Take
protective measures
when operating the
SUN2000.
Burn warning Do not touch a
running SUN2000
because it generates
high temperatures on
the shell.
Delay discharge ● High voltage exists
after the SUN2000
is powered on. Only
certied electricians
are allowed to
perform operations
on the SUN2000.
● Residual voltage
exists after the
SUN2000 is
powered o. It
takes 15 minutes
for the SUN2000 to
discharge to the
safe voltage.
Refer to
documentation
Reminds operators to
refer to the documents
provided with the
SUN2000.
Grounding Indicates the position
for connecting the PE
cable.
Operation warning Do not remove the DC
input connector when
the SUN2000 is
running.
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