Huawei SUN2000 User Manual
SUN2000-(100KTL, 110KTL, 125KTL) Series
User Manual
Issue |
Preliminary Version 3.0 |
Date 2019-12-08
HUAWEI TECHNOLOGIES CO., LTD.
Copyright © Huawei Technologies Co., Ltd. 2019. 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
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About This Document |
About This Document
Overview
This document describes the SUN2000-125KTL-M0, SUN2000-110KTL-M0, SUN2000-100KTL-M0, SUN2000-100KTL-M1 and SUN2000-100KTL-INM0 (SUN2000 for short) in terms of 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 photovoltaic (PV) plant operating personnel and qualified electricians.
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol |
Description |
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Indicates a hazard with a high level of risk which, if not avoided, |
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will result in death or serious injury. |
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Indicates a hazard with a medium level of risk which, if not |
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avoided, could result in death or serious injury. |
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Indicates a hazard with a low level of risk which, if not avoided, |
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could result in minor or moderate injury. |
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Indicates a potentially hazardous situation which, if not avoided, |
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could result in equipment damage, data loss, performance |
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deterioration, or unanticipated results. |
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NOTICE is used to address practices not related to personal injury. |
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Supplements the important information in the main text. |
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NOTE is used to address information not related to personal injury, |
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equipment damage, and environment deterioration. |
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About This Document |
Change History
Changes between document issues are cumulative. The latest document issue contains all the changes made in earlier issues.
Issue Preliminary Version 03 (2019-12-08)
Updated 3 Solar Inverter Storage.
Updated 4.5 Installing a Solar Inverter.
Updated 5.2 Preparing Cables.
Updated 5.6 Connecting an AC Output Power Cable.
Updated 5.7 Connecting DC Input Power Cables.
Updated 5.8 Connecting the RS485 Communications Cable.
Updated 7.1.1 App Introduction.
Updated 8.2 Power-Off for Troubleshooting.
Added 8.2 Power-Off for Troubleshooting.
Updated 10 Technical Specifications.
Added A Securing Y-Branch Connectors.
Updated B Grid Code.
Added C Domain Name List of Management Systems.
Issue 02 (2019-08-09)
Added the SUN2000-110KTL-M0, SUN2000-100KTL-M0, SUN2000-100KTL-M1, and SUN2000-100KTL-INM0 models.
Issue 01 (2019-05-15)
This issue is used for first office application (FOA).
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Contents |
Contents
About This Document.................................................................................................................... |
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ii |
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1 Safety Information........................................................................................................................ |
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1 |
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1.1 |
General Safety .............................................................................................................................................................. |
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1 |
1.2 |
Personnel Requirements ............................................................................................................................................... |
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2 |
1.3 |
Electrical Safety............................................................................................................................................................ |
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3 |
1.4 |
Installation Environment Requirements ....................................................................................................................... |
4 |
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1.5 |
Mechanical Safety ........................................................................................................................................................ |
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4 |
1.6 |
Commissioning ............................................................................................................................................................. |
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5 |
1.7 |
Maintenance and Replacement ..................................................................................................................................... |
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5 |
2 Overview......................................................................................................................................... |
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7 |
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2.1 |
Product Model .............................................................................................................................................................. |
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7 |
2.2 |
Overview ...................................................................................................................................................................... |
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9 |
2.3 |
Label Description........................................................................................................................................................ |
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11 |
2.4 |
Product Appearance .................................................................................................................................................... |
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13 |
2.4.1 Product Appearance ................................................................................................................................................. |
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13 |
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2.4.2 Indicator Status ........................................................................................................................................................ |
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15 |
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2.5 |
Working Principles...................................................................................................................................................... |
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2.5.1 Circuit Diagram ....................................................................................................................................................... |
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17 |
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2.5.2 Working Modes........................................................................................................................................................ |
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19 |
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3 Solar Inverter Storage................................................................................................................. |
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22 |
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4 Installation.................................................................................................................................... |
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24 |
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4.1 |
Check Before Installation ........................................................................................................................................... |
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24 |
4.2 |
Tools ........................................................................................................................................................................... |
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24 |
4.3 |
Determining the Installation Position ......................................................................................................................... |
26 |
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4.4 |
Installing the Mounting Bracket ................................................................................................................................. |
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30 |
4.4.1 Support-mounted Installation .................................................................................................................................. |
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31 |
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4.4.2 Wall-mounted Installation........................................................................................................................................ |
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32 |
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4.5 |
Installing a Solar Inverter ........................................................................................................................................... |
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33 |
5 Electrical Connections................................................................................................................ |
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38 |
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5.1 |
Precautions.................................................................................................................................................................. |
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38 |
5.2 |
Preparing Cables ......................................................................................................................................................... |
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38 |
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5.3 Connecting the PE Cable ............................................................................................................................................ |
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47 |
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5.4 Opening the Maintenance Compartment Door ........................................................................................................... |
48 |
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5.5 (Optional) Installing the Power Cable of the Tracking System .................................................................................. |
51 |
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5.6 Connecting an AC Output Power Cable ..................................................................................................................... |
52 |
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5.7 Connecting DC Input Power Cables ........................................................................................................................... |
57 |
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5.8 Connecting the RS485 Communications Cable .......................................................................................................... |
63 |
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6 Commissioning............................................................................................................................ |
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65 |
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6.1 Check Before Power-on.............................................................................................................................................. |
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65 |
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6.2 Powering On the SUN2000 ........................................................................................................................................ |
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65 |
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7 Man-Machine Interactions ........................................................................................................ |
67 |
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7.1 Operations with the SUN2000 App ............................................................................................................................ |
67 |
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7.1.1 App Introduction ...................................................................................................................................................... |
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67 |
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7.1.2 Downloading and Installing the App ....................................................................................................................... |
71 |
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7.1.3 App Login ................................................................................................................................................................ |
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71 |
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7.1.4 Operations Related to the Common User ................................................................................................................ |
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7.1.4.1 Setting User Parameters........................................................................................................................................ |
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7.1.4.2 Starting and Shutting Down the SUN2000 ........................................................................................................... |
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7.1.5 Operations Related to the Advanced User ............................................................................................................... |
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7.1.5.1 Parameter Settings ................................................................................................................................................ |
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75 |
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7.1.5.1.1 Setting Grid Parameters ..................................................................................................................................... |
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75 |
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7.1.5.1.2 Setting Protection Parameters ............................................................................................................................ |
76 |
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7.1.5.1.3 Setting Feature Parameters ................................................................................................................................ |
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76 |
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7.1.5.1.4 Setting User Parameters..................................................................................................................................... |
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7.1.5.1.5 Setting the Grid-tied Control Parameters ........................................................................................................... |
82 |
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7.1.5.1.6 Setting Communications Parameters ................................................................................................................. |
84 |
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7.1.5.1.7 Setting the Tracking System .............................................................................................................................. |
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86 |
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7.1.5.1.8 Setting a File Save Path ..................................................................................................................................... |
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88 |
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7.1.5.1.9 Configuring a PV Plant ...................................................................................................................................... |
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88 |
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7.1.5.2 System Maintenance ............................................................................................................................................. |
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91 |
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7.1.5.2.1 Device inspection............................................................................................................................................... |
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91 |
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7.1.5.2.2 Managing the License ........................................................................................................................................ |
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91 |
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7.1.5.2.3 Device management........................................................................................................................................... |
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92 |
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7.1.5.2.4 PV String Access Detection ............................................................................................................................... |
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93 |
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7.1.5.2.5 Starting and Shutting Down the SUN2000 ........................................................................................................ |
95 |
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7.1.5.2.6 Restoring Factory Settings ................................................................................................................................. |
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95 |
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7.1.5.2.7 Resetting the SUN2000 ..................................................................................................................................... |
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95 |
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7.1.5.2.8 Resetting Alarms................................................................................................................................................ |
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96 |
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7.1.5.2.9 Clearing Historical Energy Yield Data............................................................................................................... |
96 |
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7.1.5.2.10 Importing and Exporting Configuration Files .................................................................................................. |
96 |
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7.1.5.3 Device upgrade ..................................................................................................................................................... |
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96 |
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7.1.5.4 Device Logs .......................................................................................................................................................... |
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98 |
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7.1.6 Operations Related to the Special User.................................................................................................................... |
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7.1.6.1 Parameter Settings ................................................................................................................................................ |
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98 |
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7.1.6.1.1 Setting Grid Parameters ..................................................................................................................................... |
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98 |
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7.1.6.1.2 Setting Protection Parameters .......................................................................................................................... |
100 |
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7.1.6.1.3 Setting Feature Parameters .............................................................................................................................. |
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102 |
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7.1.6.1.4 Setting the Grid-tied Control Parameters ......................................................................................................... |
104 |
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7.1.6.1.5 Setting Power Adjustment Parameters ............................................................................................................. |
106 |
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7.1.6.1.6 Setting Reactive Power Control....................................................................................................................... |
109 |
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7.1.6.1.7 Setting User Parameters................................................................................................................................... |
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109 |
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7.1.6.1.8 Setting a File Save Path ................................................................................................................................... |
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110 |
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7.1.6.2 System Maintenance ........................................................................................................................................... |
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110 |
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7.1.6.2.1 Device management......................................................................................................................................... |
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110 |
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7.1.6.2.2 Starting and Shutting Down the SUN2000 ...................................................................................................... |
111 |
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7.1.6.2.3 Restoring Factory Settings ............................................................................................................................... |
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112 |
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7.1.6.3 Device upgrade ................................................................................................................................................... |
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112 |
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7.1.6.4 Device Logs ........................................................................................................................................................ |
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114 |
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7.1.7 Querying the Status................................................................................................................................................ |
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114 |
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7.1.7.1 Querying Alarm Records .................................................................................................................................... |
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114 |
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7.1.7.2 Querying SUN2000 Running Information.......................................................................................................... |
115 |
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7.1.7.3 Querying Energy Yield Data ............................................................................................................................... |
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117 |
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7.1.7.4 Viewing System Version Information ................................................................................................................. |
117 |
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7.1.8 Tool Kit .................................................................................................................................................................. |
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118 |
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7.1.8.1 Scanning SN Bar Codes...................................................................................................................................... |
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118 |
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7.1.8.2 SUN2000 Maintenance Script ............................................................................................................................ |
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120 |
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7.1.8.3 File Manager ....................................................................................................................................................... |
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121 |
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7.1.8.4 Changing the WLAN password .......................................................................................................................... |
121 |
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7.1.8.5 About .................................................................................................................................................................. |
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122 |
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7.2 (Optional) Installing a Smart Dongle........................................................................................................................ |
122 |
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7.3 Operations with a USB Flash Drive.......................................................................................................................... |
123 |
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7.3.1 Exporting Configurations ...................................................................................................................................... |
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123 |
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7.3.2 Importing Configurations ...................................................................................................................................... |
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125 |
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7.3.3 Exporting Data....................................................................................................................................................... |
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126 |
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7.3.4 Upgrading .............................................................................................................................................................. |
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127 |
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8 Maintenance............................................................................................................................... |
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129 |
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8.1 Shutdown and Power-Off ......................................................................................................................................... |
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129 |
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8.2 Power-Off for Troubleshooting................................................................................................................................. |
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129 |
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8.3 Routine Maintenance ................................................................................................................................................ |
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131 |
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8.4 Troubleshooting ........................................................................................................................................................ |
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132 |
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8.5 Replacing a Fan ........................................................................................................................................................ |
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140 |
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9 Handling the Inverter............................................................................................................... |
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145 |
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9.1 Removing the SUN2000 ........................................................................................................................................... |
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145 |
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9.2 Packing the SUN2000............................................................................................................................................... |
145 |
9.3 Disposing of the SUN2000 ....................................................................................................................................... |
145 |
10 Technical Specifications ........................................................................................................ |
146 |
A Securing Y-Branch Connectors.............................................................................................. |
151 |
B Grid Code................................................................................................................................... |
154 |
C Domain Name List of Management Systems ..................................................................... |
160 |
D DRM Configuration Guide for Standard As NZS4777.2 ................................................. |
161 |
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1 Safety Information |
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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1 Safety Information |
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.
1.2Personnel 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
1.3Electrical 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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1 Safety Information |
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.
1.4Installation 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.
1.5Mechanical 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.
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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 floor, 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.
1.6Commissioning
When the equipment is powered on for the first time, ensure that professional personnel set parameters correctly. Incorrect settings may result in inconsistency with local certification and affect the normal operation of the equipment.
1.7 Maintenance and Replacement
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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 off the equipment and strictly comply with the safety precautions in this document and relevant documents.
Maintain the equipment with sufficient knowledge of this document and using proper tools and testing equipment.
Before maintaining the equipment, power it off and follow the instructions on the delayed discharge label to ensure that the equipment is powered off.
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 rectified. Failing to do so may escalate faults or damage the equipment.
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2 Overview |
2 Overview
2.1 Product Model
Model Description
The SUN2000-125KTL-M0, SUN2000-110KTL-M0, and SUN2000-100KTL-M0 are applicable only to the Chinese mainland. For other countries or regions, Huawei does not provide quality assurance.
This document covers the following product models:
SUN2000-125KTL-M0
SUN2000-110KTL-M0
SUN2000-100KTL-M0
SUN2000-100KTL-M1
SUN2000-100KTL-INM0
Figure 2-1 Model
Table 2-1 Model description
No. |
Description |
Value |
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1 |
Series |
SUN2000: grid-tied solar inverter |
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No. |
Description |
Value |
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2 |
Power |
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125K: The power level is 125 kW. |
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110K: The power level is 110 kW. |
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100K: The power level is 100 kW. |
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3 |
Topology |
TL: transformerless |
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4 |
Region |
IN: India |
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5 |
Design code |
M0 and M1: product series with an input voltage level of |
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1100 V DC |
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Model Identification
You can obtain the solar inverter model from the model label on the external package and the nameplate on the side of the enclosure.
Figure 2-2 Position of the model label on the external package
(1) Position of the model label
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2 Overview |
Figure 2-3 Nameplate
(1) |
Trademark and product model |
(2) |
Key technical specifications |
(3) |
Compliance symbols |
(4) |
Company name and country of origin |
The nameplate figure is for reference only.
2.2 Overview
Description
SUN2000 solar inverters are grid-tied PV string inverters that convert the DC power generated by PV strings into AC power and feed the power into the power grid.
Characteristics
Smart
Ten independent maximum power point tracking (MPPT) circuits and 20 PV string inputs. Flexible configuration of PV strings is supported.
Smart PV module self-learning: Automatically detects PV module failures, helping rectify faults. Optimizes the working mode to obtain the optimal working mode of the system.
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Smart air cooling: Adjusts the fan speed based on the ambient temperature and load to ensure the service life of fans and avoid frequent maintenance.
MBUS networking: Uses the existing power line for communication and does not require additional communications cable, which reduces the construction and maintenance costs and improves communication reliability and efficiency.
Smart I-V curve diagnosis: Implements I-V scanning and health diagnosis for PV strings. In this way, potential risks and faults can be detected in time, improving the plant operation & maintenance (O&M) quality.
Safe
Embedded DC and AC surge protection devices (SPDs): all-dimensional surge protection
Embedded residual current monitoring unit: Immediately disconnects from the power grid upon detecting that the residual current exceeds the threshold.
Networking
SUN2000 solar inverters apply to grid-tied systems of large-scale PV plants and commercial distributed grid-tied systems. Typically, a grid-tied PV system consists of the PV string, solar inverter, AC combiner box, and transformer station.
Figure 2-4 Networking
(1) |
PV string |
(2) |
SUN2000 |
(3) AC combiner box |
(4) |
Transformer station |
(5) |
Power grid |
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The SUN2000-125KTL-M0 is powered by a dedicated power transformer instead of connecting to low-voltage overhead power lines.
Supported Power Grids
SUN2000-110KTL-M0, SUN2000-100KTL-M0, SUN2000-100KTL-M1 and SUN2000-100KTL-INM0 solar inverters support the TN-S, TN-C, TN-C-S, TT, and IT power grids.
The SUN2000-125KTL-M0 supports only the IT power grid.
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Figure 2-5 Supported Power Grids
2.3 Label Description
Symbol |
Name |
Meaning |
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Running warning |
Potential hazards exist |
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after the inverter is |
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powered on. Take |
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protective measures when |
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operating the inverter. |
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Burn warning |
Do not touch a running |
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inverter, as the shell |
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becomes hot during |
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operation. |
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Large current warning |
Before powering on the |
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inverter, ensure that the |
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inverter is grounded |
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because there is a large |
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contact current after the |
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inverter is powered on. |
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Symbol |
Name |
Meaning |
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Delayed discharge |
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High voltage exists |
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after the inverter is |
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powered on. Only |
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qualified and trained |
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electrical technicians |
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are allowed to perform |
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operations on the |
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inverter. |
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Residual voltage exists |
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after the inverter is |
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powered off. It takes |
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15 minutes for the |
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inverter to discharge to |
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the safe voltage. |
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Refer to documentation |
Reminds operators to |
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refer to the documents |
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shipped with the inverter. |
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Grounding |
Indicates the position for |
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connecting the protective |
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earthing (PE) cable. |
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Operation warning |
Do not remove the DC |
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input connector when the |
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inverter is running. |
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Fan operation warning |
High voltage exists after |
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the inverter is powered |
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on. Do not touch the fans |
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when the inverter is |
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working. |
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Fan replacement warning |
Before replacing a fan, |
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disconnect its power |
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connectors. |
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Inverter ESN label |
Indicates the inverter |
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serial number. |
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Weight label |
The inverter needs to be |
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carried by four persons or |
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using a pallet truck. |
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2.4 Product Appearance
2.4.1 Product Appearance
Appearance
Figure 2-6 Appearance
(1) Panel
(3) Maintenance compartment door
(5) External fan tray
(7) DC switch 1 (DC SWITCH
1)
(9) DC switch 2 (DC SWITCH
2)
(11) DC switch 3 (DC SWITCH 3)
(13) USB port (USB)
(15) Hole for the AC output power cable
(2) LED indicators
(4) Mounting bracket
(6) DC input terminal group 1 (PV1–PV8, controlled by DC SWITCH 1)
(8) DC input terminal group 2 (PV9–PV14, controlled by DC SWITCH 2)
(10) DC input terminal group 3 (PV15–PV20, controlled by DC SWITCH 3)
(12) Ventilation valve
(14) Communications port (COM)
(16) Hole for the tracking system power cable
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Dimensions
Figure 2-7 Dimensions
Wiring Area
Figure 2-8 Wiring port of a 3-pin model (SUN2000-125KTL-M0)
(1) |
DC input terminals |
(2) |
RS485 port |
(3) |
Ground point on the enclosure |
(4) |
AC terminal block (3-pin) |
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Figure 2-9 Wiring port of 4-pin models (SUN2000-110KTL-M0, SUN2000-100KTL-M0, SUN2000-100KTL-M1, and SUN2000-100KTL-INM0)
(1) |
DC input terminals |
(2) |
RS485 port |
(3) |
Ground point on the enclosure |
(4) |
AC terminal block (4-pin) |
2.4.2 Indicator Status
Figure 2-10 Indicator
No. |
Indicator |
Status (Blinking Fast: On for 0.2s and |
Description |
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then Off for 0.2s; Blinking Slowly: |
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On for 1s and then Off for 1s) |
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1 |
PV connection |
Steady green |
At least one PV string is properly |
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indicator |
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connected, and the DC input |
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voltage of the corresponding |
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MPPT circuit is at least 200 V. |
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No. |
Indicator |
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Status (Blinking Fast: On for 0.2s and |
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Description |
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then Off for 0.2s; Blinking Slowly: |
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On for 1s and then Off for 1s) |
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Blinking green fast |
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If the alarm/maintenance indicator |
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is red, an environmental fault at |
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the DC side of the solar inverter is |
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generated. |
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Off |
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The solar inverter disconnects |
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from all PV strings, or the DC |
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input voltage of all MPPT circuits |
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is less than 200 V. |
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2 |
Grid connection |
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Steady green |
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The solar inverter is in grid-tied |
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indicator |
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mode. |
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Blinking green fast |
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If the alarm/maintenance indicator |
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is red, an environmental fault |
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(excluding Grid Loss) at the AC |
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side of the solar inverter is |
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generated. |
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Off |
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The solar inverter is not in |
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grid-tied mode (due to reasons |
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including Grid Loss). |
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3 |
Communications |
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Blinking green fast |
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The solar inverter receives |
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indicator |
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communication data normally. |
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Off |
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The solar inverter has not received |
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communication data for 10 |
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seconds. |
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4 |
Alarm/Maintenance |
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Alarm status |
Steady red |
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A major alarm is generated. |
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indicator |
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If the PV connection indicator |
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or grid connection indicator is |
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blinking green fast, |
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troubleshoot DC or AC |
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environmental faults as |
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instructed by the SUN2000 |
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app. |
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If the PV connection indicator |
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and grid connection indicator |
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are both not blinking green |
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fast, replace components or the |
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solar inverter as instructed by |
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the SUN2000 app. |
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Blinking red fast |
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A minor alarm is generated. |
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Blinking red slowly |
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A warning alarm is generated. |
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Local maintenance |
Steady green |
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Local maintenance succeeds. |
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status |
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Blinking green fast |
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Local maintenance fails. |
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No. |
Indicator |
Status (Blinking Fast: On for 0.2s and |
Description |
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then Off for 0.2s; Blinking Slowly: |
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On for 1s and then Off for 1s) |
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Blinking green |
In local maintenance or shuts |
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slowly |
down over a command. |
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The PV connection indicator and the grid connection indicator preferentially indicate environmental faults.
Local maintenance refers to operations performed after a USB flash drive, a WLAN module, a Bluetooth module, or a USB data cable is inserted into the USB port of the solar inverter. For example, local maintenance includes data import and export using a USB flash drive, and connecting to the SUN2000 app over a WLAN module, a Bluetooth module, or a USB data cable.
If an alarm is generated during local maintenance, the alarm/maintenance indicator shows the local maintenance state first. After the USB flash drive, WLAN module, Bluetooth module, or USB data cable is removed, the indicator shows the alarm state.
2.5Working Principles
2.5.1 Circuit Diagram
The solar inverter receives inputs from 20 PV strings. The inputs are grouped into 10 MPPT circuits inside the solar inverter to track the maximum power point of the PV strings. The DC power is then converted into three-phase AC power through an inverter circuit. Surge protection is supported on both the DC and AC sides.
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Figure 2-11 Schematic diagram of a 3-pin model
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Figure 2-12 Schematic diagram of 4-pin models
2.5.2 Working Modes
The SUN2000 can work in Standby, Operating, or Shutdown mode.
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Figure 2-13 Working modes
Table 2-2 Working mode description
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Working |
Description |
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Mode |
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Standby |
The SUN2000 enters Standby mode when the external environment does not |
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meet the operating requirements. In Standby mode: |
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The SUN2000 continuously performs status check and enters the |
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Operating mode once the operating requirements are met. |
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The SUN2000 enters Shutdown mode after detecting a shutdown |
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command or a fault after startup. |
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Operating |
In Operating mode: |
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The SUN2000 converts DC power from PV strings into AC power and |
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feeds the power to the power grid. |
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The SUN2000 tracks the maximum power point to maximize the PV |
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string output. |
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If the SUN2000 detects a fault or a shutdown command, it enters the |
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Shutdown mode. |
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The SUN2000 enters Standby mode after detecting that the PV string |
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output power is not suitable for connecting to the power grid for |
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generating power. |
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SUN2000-(100KTL, 110KTL, 125KTL) Series
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Working |
Description |
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Mode |
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Shutdown |
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In Standby or Operating mode, the SUN2000 enters Shutdown mode |
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after detecting a fault or shutdown command. |
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In Shutdown mode, the SUN2000 enters Standby mode after detecting a |
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startup command or that the fault is rectified. |
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3 Solar Inverter Storage |
3 Solar Inverter Storage
The following requirements should be met if the solar inverter is not put into use immediately:
Do not remove the packing materials, and check the packing materials regularly (recommended: every three months). If any rodent bites are found, replace the packing materials immediately. If the solar inverter is unpacked but not put into use immediately, put it inside the original package with the desiccant bag, and seal it using tape.
The ambient temperature and humidity should be suitable for the storage. The air must not contain corrosive or flammable gases.
Figure 3-1 Storage temperature and humidity
The solar inverter should be stored in a clean and dry place and be protected from dust and water vapor corrosion. The solar inverter must be protected against rain and water.
Do not tilt the package or place it upside down.
To avoid personal injury or device damage, stack inverters with caution to prevent them from falling over.
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