Huawei SUN2000-75KTL Series User Manual
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Huawei SUN2000-75KTL Series User Manual

Huawei SUN2000-75KTL Series User Manual

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SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series
User Manual
Issue
11
Date
2021-11-10
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei SUN2000-75KTL Series

  • Page 1 SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series User Manual Issue Date 2021-11-10 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 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"...

  • Page 3: About This Document

    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. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 4 Inverter. Updated 5.2 Preparing Cables. Updated 5.7 Connecting DC Input Power Cables. Updated 6.2 Powering On the SUN2000. Updated 7.1.4.5 AFCI. Updated 8.1 Shutdown and Power-Off. Updated 8.2 Power-Off for Troubleshooting. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 5 Issue 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. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 6 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). Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 7: Table Of Contents

    4.3 Determining the Installation Position..........................26 4.4 Installing the Mounting Bracket............................30 4.4.1 Support-mounted Installation............................31 4.4.2 Wall-mounted Installation............................. 32 4.5 Installing a Solar Inverter..............................33 5 Electrical Connections......................38 5.1 Precautions....................................38 5.2 Preparing Cables................................... 38 Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 8 8.3 Routine Maintenance................................ 108 8.4 Troubleshooting.................................. 110 8.5 Replacing a Fan................................... 123 8.6 Loading the DC Switch..............................127 9 Handling the Inverter......................128 9.1 Removing the SUN2000..............................128 9.2 Packing the SUN2000............................... 128 Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 9 Contents 9.3 Disposing of the SUN2000.............................. 128 10 Technical Specifications....................129 A Securing Y-Branch Connectors..................134 B Grid Code..........................137 C Domain Name List of Management Systems...............145 D Acronyms and Abbreviations................... 146 Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd. viii...

  • Page 10: Safety Information

    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.

  • Page 11: Personnel Requirements

    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.

  • Page 12: Electrical Safety

    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. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 13: Installation Environment Requirements

    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. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 14 Moving Heavy Objects ● Be cautious to avoid injury when moving heavy objects. ● When moving the equipment by hand, wear protective gloves to prevent injuries. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 15: Commissioning

    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. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Overview

    Overview 2.1 Product Model Model Description NO TICE 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 ●...
  • Page 17 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 Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 18: Overview

    ● 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. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 19 Supported Power Grids ● SUN2000-110KTL-M0, SUN2000-100KTL-M0, SUN2000-100KTL-M1, SUN2000-100KTL-INM0 and SUN2000-75KTL-M1 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. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 20: Label Description

    It takes 15 minutes for the inverter to discharge to the safe voltage. Refer to documentation Reminds operators to refer to the documents shipped with the inverter. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 21: Product Appearance

    Fan replacement warning Before replacing a fan, disconnect its power connectors. Inverter ESN label Indicates the inverter serial number. Weight label The inverter needs to be carried by four persons or using a pallet truck. 2.4 Product Appearance Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 22: Product Appearance

    (2) (Optional) Screw hole for DC switch PV8, controlled by DC SWITCH 1) (3) DC switch 1 (DC SWITCH 1) (4) DC input terminal group 2 (PV9– PV14, controlled by DC SWITCH 2) Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 23 (17) Hole for the tracking system power cable Note [1]: If the DC switch rotating handle is at the position , the DC switch is not completely closed and may not be automatically switched off. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 24 Figure 2-9 Dimensions Wiring Area Figure 2-10 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) Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 25: Indicator Status

    Slowly: On for 1s and then Off for PV connection Steady green At least one PV string is indicator properly connected, and the DC input voltage of the corresponding MPPT circuit is at least 200 V. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 26 SUN2000 app. ● If the PV connection indicator and grid connection indicator are both not blinking green fast, replace components or the solar inverter as instructed by the SUN2000 app. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 27: Working Principles

    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. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 28 SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series User Manual 2 Overview Figure 2-13 Schematic diagram of a 3-pin model Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 29: Working Modes

    SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series User Manual 2 Overview Figure 2-14 Schematic diagram of 4-pin models 2.5.2 Working Modes The SUN2000 can work in Standby, Operating, or Shutdown mode. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 30 ● In Standby or Operating mode, the SUN2000 enters Shutdown mode after detecting a fault or shutdown command. ● In Shutdown mode, the SUN2000 enters Standby mode after detecting a startup command or that the fault is rectified. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 31: Solar Inverter Storage

    ● 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. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 32 Figure 3-2 Maximum number of pile-up layers allowed ● If the solar inverter has been stored for more than two years, it must be checked and tested by professionals before being put into use. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 33: Installation

    If any damage is found or any component is missing, contact your dealer. NO TE For details about the number of accessories delivered with the solar inverter, see the Packing List in the packing case. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 34: Tools

    (head: M3) Installation tools Utility knife Cable cutter Crimping tool RJ45 crimping (model: PV- tool CZM-22100) Open-end Vacuum cleaner Multimeter (DC Marker wrench (model: voltage PV-MS-HZ) measurement range ≥ 1100 V Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 35: Determining The Installation Position

    If the inverter is installed in an airtight environment, a heat dissipation device or ventilation device must be installed to ensure that the indoor ambient temperature is not higher than the external ambient temperature during operation. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 36 The inverter will be corroded in salt areas. Before installing the inverter outdoors in salt areas, consult Huawei. A salt area refers to the region within 500 meters from the coast or prone to sea breeze. The regions prone to sea breeze vary with weather conditions (such as typhoons and monsoons) or terrains (such as dams and hills).
  • Page 37 SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series User Manual 4 Installation Figure 4-2 Angle Installation Dimensions Requirements Reserve enough space around the solar inverter for installation and heat dissipation. Figure 4-3 Installation dimensions Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 38 Stacked installation is not recommended. Figure 4-4 Horizontal installation mode (recommended) Figure 4-5 Triangle installation mode (recommended) Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 39: Installing The Mounting Bracket

    The mounting bracket of the solar inverter has four groups of tapped holes, each group containing four tapped holes. Mark any hole in each group based on site requirements and mark four holes in total. The two round holes are recommended. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 40: Support-Mounted Installation

    Step 2 Drill holes using a hammer drill. It is recommended that anti-rust measures be taken on the positions for drilling holes. Step 3 Secure the mounting bracket. Figure 4-9 Installing the mounting bracket ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 41: Wall-Mounted Installation

    ● Level the head of the expansion sleeve with the concrete wall after removing the bolt, spring washer, and flat washer. Otherwise, the mounting bracket will not be securely installed on the wall. Step 3 Secure the mounting bracket. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 42: Installing A Solar Inverter

    ● To avoid damage to the equipment, do not lift or hoist a solar inverter with an improper hold as shown in Figure 4-12. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 43 Step 1 Lift the solar inverter from the packing case and move it to the installation position. Figure 4-13 Taking out the solar inverter Step 2 (Optional) Install screws for locking DC switches. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 44 NO TICE Hoist the solar inverter with care to protect it from colliding with the wall or other objects. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 45 Step 5 Install the solar inverter on the mounting bracket and align the solar inverter enclosure with the mounting bracket. Figure 4-17 Mounting the solar inverter Step 6 Secure the solar inverter. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 46 SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series User Manual 4 Installation Figure 4-18 Tightening security Torx screws ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 47: Electrical Connections

    Select cables in accordance with local cable specifications (green-and- yellow cables are only used for protective earthing). 5.2 Preparing Cables SUN2000 solar inverters support RS485 communication and MBUS communication. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 48 Figure 5-1 RS485 networking (SmartLogger) (A) PV string (B) SUN2000 (C) AC combiner box (D) Transformer station (E) Power grid (F) SmartLogger (G) Management system Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 49 (E) Power grid (F) SDongle (G) Management system Figure 5-3 MBUS networking (SmartLogger) (A) PV string (B) SUN2000 (C) AC combiner box (D) Transformer station (E) Power grid (F) SmartLogger (G) Management system Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 50 COM port on the SmartLogger and that less than 10 solar inverters be cascaded over the SDongle. ● The RS485 communication distance between the last solar inverter and the SmartLogger cannot exceed 1000 m. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 51 SDongle is installed. SmartLogger The solar inverter communicates with Purchased from the management system through the Huawei SmartLogger. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 52 ● The cable diameter must comply with local cable standards. ● The factors that affect cable selection include the rated current, cable type, routing mode, ambient temperature, and maximum expected line loss. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 53 (L1, L2, L3, and PE) outdoor cable, M12 OT/DT terminals (L1, L2, and L3), and M10 OT/DT terminals (PE). You do not need to prepare a PE cable. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 54 4– 11 mm ● Three communic ations cables: 4– 8 mm Single-core outdoor ≥ S/2 Prepared PE cable copper cable and M10 by the OT/DT terminals customer Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 55 5 Electrical Connections Cable Category Conductor Outer Source Cross-Sectional Diameter Area Range Tracking Three-core outdoor 15–18 mm Prepared 10 mm system power copper cable with dual- by the cable layer protection customer Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 56 (L1, L2, L3, N, and PE) outdoor cable, M12 OT/DT terminals (L1, L2, L3, and N), and M10 OT/DT terminals (PE). Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 57: Connecting The Pe Cable

    Connect the PE points of all solar inverters in the same array to ensure equipotential connections to PE cables. Procedure Step 1 Connect the PE cable to the PE point. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 58: Opening The Maintenance Compartment Door

    If unavoidable, do not open the maintenance compartment door. ● Do not leave unused screws in the maintenance compartment. Procedure Step 1 Open the maintenance compartment door and install the support bar. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 59 Figure 5-7 Opening the maintenance compartment door Step 2 Remove the accessories and keep them properly. Figure 5-8 Removing the accessories Step 3 Select a crimping module according to the type of the AC output power cable. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 60 Remove the corresponding rubber rings in strict accordance with the cable diameter, and ensure that the crimping module is not damaged. Otherwise the protection level of the solar inverter will be affected. Figure 5-10 Remove the rubber ring Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 61: Optional) Installing The Power Cable Of The Tracking System

    Step 1 Prepare a cable. Step 2 Remove the corresponding rubber rings. Step 3 Connect the power cable of the tracking system. Figure 5-11 Connecting the power cable of the tracking system ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 62: Connecting An Ac Output Power Cable

    If a copper-clad aluminum cable is used, use copper wiring terminals. ● If an aluminum alloy cable is used, use copper-aluminum transition wiring terminals, or aluminum wiring terminals along with copper-aluminum transition spacers. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 63 Ensure that the aluminum sides of spacers are in contact with aluminum wiring terminals, and copper sides of spacers are in contact with the AC terminal block. Figure 5-13 Requirements for the OT/DT terminal Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 64 Step 3 Secure the AC output power cable and PE cable. Step 4 Install the support bar. Step 5 Close the maintenance compartment door and tighten the two screws on the door. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 65 ● If a screw on the maintenance compartment door is lost, obtain the spare screw from the fitting bag tied at the bottom of the maintenance compartment. Figure 5-16 Multi-core cable connections Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 66 The 32–36 mm cable is supported only by some models. Refer to the corresponding label to get the supported size. Figure 5-18 3-pin model (125KTL) cable connections (A) Four-core cable (B) Three-core cable (C) Single-core cable Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 67 (excluding the neutral wire) NO TE The cable colors shown in figures are for reference only. Select an appropriate cable according to the local standards. Figure 5-20 Closing the Maintenance Compartment Door ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 68: Connecting Dc Input Power Cables

    In this case, an AC or DC short circuit may occur and damage the solar inverter. The caused device damage is not covered under any warranty. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 69 PV1–PV4, PV6, PV8, PV10, PV1–PV4, PV6, PV8, PV10, PV12, PV14, PV16, and PV12, PV14, and PV16– PV18–PV20 PV20 PV1–PV6, PV8, PV10, PV12, PV1–PV6, PV8, PV10, PV12, PV14, and PV16–PV20 and PV14–PV20 Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 70 Wiring Description of Y-branch Connectors NO TICE ● Y-branch connectors can be purchased from Huawei or the manufacturers based on the following recommended models: If the rated current of the fuse of the Y-branch connector is 15 A, the recommended model is 904095944 (Luxshare) or A040959443039 (Comlink);...
  • Page 71 MPPT10 MPPT9, and MPPT10 MPPT1, MPPT2, MPPT3, MPPT1, MPPT2, MPPT3, MPPT5, MPPT6, MPPT7, MPPT4, MPPT5, MPPT6, MPPT8, MPPT9, and MPPT7, MPPT8, MPPT9, MPPT10 and MPPT10 Figure 5-22 Y-branch Connector Solution Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 72 If the voltage is a negative value, the DC input polarity is incorrect and needs correction. ● If the voltage is greater than 1100 V, too many PV modules configured to the same string. Remove some PV modules. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 73 Step 6 Insert the positive and negative connectors into the corresponding DC positive and negative input terminals of the solar inverter. Figure 5-23 Connecting DC input power cables Figure 5-24 Connector connection Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 74 During DC input power cabling, leave at least 50 mm of slack. The axial tension on PV connectors must not exceed 80 N. Radial stress or torque must not be generated on PV connectors. ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 75: Connecting The Rs485 Communications Cable

    RS485B IN, RS485 RS485B OUT, RS485 such as the differential signal– differential signal– SmartLogger. Protection PE, shielding ground PE, shielding ground ground Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 76 When routing the communications cable, separate it from power cables to prevent communication from being affected. Connect the shield layer to the PE point. This section describes how to connect three communications cables. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 77 SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series User Manual 5 Electrical Connections Figure 5-27 Connecting RS485 communications cables (4–8 mm four-hole rubber plug) Figure 5-28 Connecting RS485 communications cables (4–8 mm two-hole or three-hole rubber plug) Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 78: Commissioning

    When LED2 is steady green (meaning that the inverter is grid-tied), do not turn on any DC switch. Otherwise, the inverter may be damaged because the insulation resistance is not detected. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 79 ON.When you hear a click sound, the switch is ON. Step 4 Check the status of the PV connection indicator. If it is steady green, set DC SWITCH 2 and DC SWITCH 3 to ON. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 80 Step 5 Observe the LED indicators to check the SUN2000 operating status. Step 6 Perform quick settings on the SUN2000 app. For details, see 7.1 Operations with the SUN2000 App. ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 81: Man-Machine Interactions

    ● Over a USB data cable: The USB 2.0 port is supported. Use the USB data cable delivered with the mobile phone. ● Mobile phone operating system: Android 4.0 or later. ● Recommended phone brands: Huawei and Samsung. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 82: Downloading And Installing The App

    ● The parameter names, value ranges, and default values are subject to change. 7.1.2 Downloading and Installing the App ● FusionSolar app: Scan the QR code and download the latest installation package. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 83: Logging In To The App

    SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series User Manual 7 Man-Machine Interactions ● SUN2000 app: Log in to Huawei AppGallery (https://appstore.huawei.com), search for SUN2000, and download the app installation package. You can also scan the QR code (https://appgallery.cloud.huawei.com/appdl/C10279542) to download the installation package.
  • Page 84 USB access will not appear if you log in to the app again without removing the USB data cable. (Scenario in which the SUN2000 is connected to the FusionSolar hosting cloud) Run the FusionSolar app and access the Device Commissioning screen. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 85 SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series User Manual 7 Man-Machine Interactions Figure 7-3 Selecting a connection mode (with network access) Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 86 7 Man-Machine Interactions Figure 7-4 Selecting a connection mode (without network access) (Scenario in which the SUN2000 is connected to other management systems) Run the SUN2000 app and access the operation screen. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 87 ● To set SUN2000 basic parameters on the quick settings screen, switch to Advanced User. If you log in as Common User or Special User, enter the password of the advanced user to access the Quick Settings screen. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 88: Operations Related To The Advanced User

    Isolation settings Set the working mode of the inverter based on the grounding status at DC side and the connection to the power grid. ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 89: Setting Protection Parameters

    If the detected value is less than the preset value, the SUN2000 does not export power to the power grid. ----End 7.1.4.3 Setting Feature Parameters Procedure Step 1 Choose Function Menu > Settings > Feature Parameters, and set feature parameters. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 90 MPPT scanning at regular intervals to locate the maximum power. MPPT multi-peak scan interval Specifies the MPPT scanning interval. (min) This parameter is displayed when MPPT multi-peak scanning is set to Enable. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 91 This parameter is displayed when PV module type is set to Crystalline silicon. Select PV–positive offset for P-type PV modules. Select PV+ negative offset for N-type PV modules. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 92 After the inverter starts to upgrade, if Delay upgrade is set to Enable, the upgrade package is loaded first. After the PV power supply recovers and the activation conditions are met, the inverter automatically activates the upgrade. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 93: Built-In Pid Recovery

    PV module is the PV– positive offset. Otherwise, PV modules may be damaged. Procedure Step 1 Choose Settings > Feature Parameters. The parameter setting screen is displayed. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 94 Specifies the operation mode of the inverter built-in PID. PID nighttime off-grid repair Specifies whether to enable the PID nighttime off-grid repair. If PID running mode is not set to Disable, the parameter can be set. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 95: Afci

    Function If PV modules or cables are not properly connected or damaged, electric arcs may occur, which may cause fire. Huawei SUN2000s provide unique arc detection in compliance with UL 1699B-2018 to ensure the safety of users' lives and property.

  • Page 96: Operations Related To The Special User

    Ensure that the DC side of the SUN2000 is energized before setting grid parameters, protection parameters, feature parameters, and grid adjustment parameters. 7.1.5.1 Setting Grid Parameters Procedure Step 1 Choose Function Menu > Settings > Grid Parameters and set grid parameters. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 97 Specifies whether to allow the inverter to automatically start recovery after the power grid recovers. Grid connected recovery time Specifies the time after which the inverter begins restarting from grid faults (s) after the power grid recovers. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 98: Setting Protection Parameters

    Specifies the voltage threshold for exiting reactive power (cosφ-P) exit voltage (%) compensation based on the cosφ-P curve. ----End 7.1.5.2 Setting Protection Parameters Procedure Step 1 Choose Function Menu > Settings > Protection Parameters and set protection parameters. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 99 Specifies the solar inverter protection threshold when the threshold (%) power grid voltage is unbalanced. 10-min overvoltage protection Specifies the 10-minute overvoltage protection threshold. threshold (V) 10-min overvoltage protection Specifies the 10-minute overvoltage protection duration. duration (ms) Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 100: Setting Feature Parameters

    Active islanding protection Specifies whether to enable the active islanding protection function. ----End 7.1.5.3 Setting Feature Parameters Procedure Step 1 Choose Function Menu > Settings > Feature Parameters, and set feature parameter Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 101 LVRT is short for low voltage ride-through. When the grid voltage is abnormally low for a short time, the inverter cannot disconnect from the power grid immediately and has to work for some time. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 102 HVRT is short for high voltage ride-through. When the grid voltage is abnormally high for a short time, the inverter cannot disconnect from the power grid immediately and has to work for some time. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 103 Enable, the output current is less than 10% of the rated current during high/low voltage ride-through. This parameter is displayed when LVRT or HVRT is set to Enable. Active islanding protection Specifies whether to enable the active islanding protection function. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 104: Setting Power Adjustment Parameters

    Sets the communication mode between the master and slave servers in SDongle scenarios. ----End 7.1.5.4 Setting Power Adjustment Parameters Procedure Step 1 Choose Function Menu > Settings > Power adjustment and set power adjustment parameters. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 105 When this parameter is set to 0, the scheduling instruction takes effect permanently. Maximum active power (kW) Specifies the output upper threshold for the maximum active power to adapt to different market requirements. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 106 Specifies the adjustment time for the reactive power to reach the target value during reactive power adjustment. Plant active power gradient Specifies the rate of active power rise due to sunlight changes. (min/100%) Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 107 < Cutoff frequency of overfrequency derating. Cutoff power of overfrequency Specifies the power threshold for cutting off overfrequency derating (%) derating. ● This parameter is displayed when Overfrequency derating is set to Enable. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 108 P/ Pn(%) (the ratio of the actual active power to the rated active power). Cosφ-P/Pn characteristic curve The inverter adjusts the output power factor cosφ in real time based on P/Pn(%). Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 109: Optional) Installing A Smart Dongle

    7.3 Operations with a USB Flash Drive USB flash drives of SanDisk, Netac, and Kingston are recommended. Other brands may be incompatible. NO TE Delete the script file immediately after use to reduce information disclosure risks. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 110: Exporting Configurations

    Step 4 Connect the USB flash drive to the USB port. The system automatically identifies the USB flash drive and executes all commands specified in the boot script file. View the LED indicator to determine the operating status. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 111: Importing Configurations

    Step 3 Replace the exported boot script file in the root directory of the USB flash drive with the imported one. NO TICE Replace the boot script file only and keep the exported files. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 112: Exporting Data

    Verify that the ciphertext in the boot script file matches the login password of the SUN2000 app. If they do not match and you insert the USB flash drive for five consecutive times, the user account will be locked for 10 minutes. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 113: Upgrading

    Step 7 Connect the USB flash drive to the USB port. The system automatically identifies the USB flash drive and executes all commands specified in the boot script file. View the LED indicator to determine the operating status. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 114 After the restart, the indicator is blinking green slowly for 1 minute and then it becomes steady green, which indicates that the upgrade is successful. ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 115: Maintenance

    Step 3 Set all DC switches to OFF. NO TE For the SUN2000-90KTL-H2, lock the DC switch using the saved screw after turning on it. Step 4 (Optional) Install screws for locking DC switches. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 116: Power-Off For Troubleshooting

    SUN2000 app, SmartLogger, or management system. If the solar inverter has shut down due to a fault, go to the next step. Step 3 Turn off the AC switch between the solar inverter and the power grid. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 117: Routine Maintenance

    ----End 8.3 Routine Maintenance To ensure that the solar inverter can operate properly for a long term, you are advised to perform routine maintenance on it as described in this chapter. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 118 Grounding Ground cables are securely The first inspection is reliability connected. 6 months after the initial commissioning. From then on, the interval can be 6 to 12 months. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 119: Troubleshooting

    Minor: Some components are faulty without affecting the grid-tied power generation. ● Warning: The solar inverter works properly. The output power decreases or some authorization functions fail due to external factors. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 120 If yes, wait until connected. the solar irradiance declines at night and the PV string current drops below 0.5 A. Then, turn off the DC switches and correct the PV string connection. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 121 0.5 A. Then, turn off the DC switches and add more PV modules. 2. Check whether the PV string is shaded. 3. Check whether the open- circuit voltage of the PV string is normal. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 122 PV string is lost; both 2- string terminals are in-1 PV strings are lost; one of the properly connected. 2-in-1 PV strings is lost. 3. If a 2-in-1 terminal is used, check whether it is normal. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 123 (NMS) to modify the grid undervoltage protection threshold with the consent of the local power operator. 3. If the fault persists for a long time, check the AC circuit breaker and AC output power cable. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 124 If the AC output power cable is correctly connected, yet the alarm persists and affects the energy yield of the PV plant, contact the local power operator. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 125 If yes, log in to the mobile phone app, SmartLogger, or NMS to modify the power grid underfrequency protection threshold with the consent of the local power operator. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 126 Overhig rectified. 2. If the alarm occurs frequently, contact your dealer or Huawei technical support. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 127 3. If you are sure that the impedance is less than the default value in a cloudy or rainy environment, reset Insulation resistance protection. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 128 Cause ID = 1 1. Apply for a new license. Expired 1. The privilege license has 2. Load a new license. entered the grace period. 2. The privilege feature will be invalid soon. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 129 PV array output and the ground. If a short circuit occurs or the insulation is insufficient, rectify the fault. 2. If the alarm persists, contact your dealer or Huawei technical support. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 130 If the fault persists, contact your dealer or Huawei technical support. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 131 ON position, press the reset buttons of all DC switches inwards until they cannot be moved further, and then turn on the DC switches again. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 132: Replacing A Fan

    Huawei technical support. NO TE If you cannot rectify faults with the measures listed in the Suggestions column, contact your dealer or Huawei technical support. 8.5 Replacing a Fan CA UTION ● Before replacing a fan, power off the inverter.
  • Page 133 Step 4 Remove cable ties from the faulty fan. ● FAN 1 Faulty Figure 8-7 Removing the FAN 1 cable ties ● FAN 2 Faulty Figure 8-8 Removing the FAN 2 cable ties ● FAN 3 Faulty Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 134 Binding positions for fan 1 Figure 8-12 Binding the FAN 1 cables ● Binding positions for fan 2 Figure 8-13 Binding the FAN 2 cables ● Binding positions for fan 3 Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 135 Step 9 Connect the cables correctly according to the cable labels and bind the cables. Figure 8-16 Reconnecting and binding the cables Step 10 Push the fan tray into the slot and tighten the screw. Figure 8-17 Reinstalling the fan tray ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 136: Loading The Dc Switch

    Step 2 Press the RESET buttons until it cannot go further, and then tighten the nuts of the RESET buttons. Figure 8-18 Loading the DC switch (DC SWITCH 1 is used as an example) ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 137: Handling The Inverter

    9.3 Disposing of the SUN2000 If the SUN2000 service life expires, dispose of it according to the local disposal rules for electrical equipment waste. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 138: Technical Specifications

    98.6% (480 (480 V) 98.4% (480 Input Item SUN2000-1 SUN2000-1 SUN2000-1 SUN2000-1 SUN2000-1 SUN2000-7 25KTL-M0 10KTL-M0 00KTL-M0 00KTL-M1 00KTL- 5KTL-M1 INM0 Maximum 1100 V input voltage Operating 200–1000 V voltage range Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 139 Output Item SUN2000-1 SUN2000-1 SUN2000-1 SUN2000-1 SUN2000-1 SUN2000-7 25KTL-M0 10KTL-M0 00KTL-M0 00KTL-M1 00KTL- 5KTL-M1 INM0 Rated 125 kW 110 kW 100 kW 100 kW 100 kW 75 kW active power Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 140 SUN2000-100KTL-M0, SUN2000-100KTL-M1, SUN2000-100KTL-INM0, or SUN2000-75KTL-M1 based on the application scenario. If no neutral wire is used, set Output mode to Three-phase three-wire. If the neutral wire is used, set the Output mode to Three-phase four-wire. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 141 PV string Supported fault detection DC surge Supported protection AC surge Supported protection Insulation Supported resistance detection Residue Supported current monitoring unit (RCMU) Overvoltag PV II/AC III e category Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 142 –25°C to +60°C Cooling Intelligent air cooling mode Highest 4000 m operating altitude Relative 0%–100% RH humidity Input Staubli MC4 terminal Output Crimping module + OT/DT terminal terminal IP rating IP66 Topology Transformerless Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 143: A Securing Y-Branch Connectors

    Prepare a tray based on the base size of the solar inverter and the cabling of the Y-branch connectors. ● Material: outdoor corrosion-resistant material ● Bearing capacity: ≥ 10 kg Figure A-1 Recommended dimensions Step 1 Install a tray. Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 144 Method 2: Using a Beam Prepare a beam based on the base size of the solar inverter and the cabling of the Y-branch connectors. ● Material: outdoor corrosion-resistant material ● Bearing capacity: ≥ 10 kg Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 145 A Securing Y-Branch Connectors Figure A-4 Recommended dimensions Step 1 Install a beam. Figure A-5 Installing a beam Step 2 Bind the Y-branch connectors on the beam. Figure A-6 Binding Y-branch connectors ----End Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 146: B Grid Code

    Supported Supported 32004 Golden Sun LV UTE C France Supported Supported 15-712-1( continent UTE C France Supported Supported 15-712-1( islands UTE C France Supported Supported 15-712-1( islands Bulgaria Supported Supported 0126-1-1- Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 147 RD1699/6 Spain LV Supported Supported RD1699/6 Spain MV Supported Supported MV480 EN50438- Netherlan Supported Supported C10/11 Belgium Supported Supported AS4777 Australia Supported Supported IEC61727 IEC 61727 Supported Supported Supported LV (50 Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 148 Supported MV480 MV (50 UTE C France Supported Supported 15-712-1- islands MV480 TAI-PEA- Thailand Supported Supported MV480 MV PEA TAI-MEA- Thailand Supported Supported MV480 MV MEA EN50438- Denmark Supported Supported MV480 Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 149 MV480 CHINA_M China MV Supported V500 ANRE Romania Supported Supported ANRE- Romania Supported Supported MV480 PO12.3- Spain MV Supported Supported MV480 EN50438_ Ireland Supported Supported IE-MV480 EN50438_ Ireland LV Supported Supported Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 150 Supported MV500 SA_RPPs South Supported Supported Africa LV SA_RPPs- South Supported Supported MV480 Africa MV Malaysian Malaysia Supported Supported Malaysian Malaysia Supported Supported -MV480 Northern Northern Supported Supported Ireland Ireland LV Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 151 Supported Supported ne_Grid hybrid Fuel- DG-grid Supported Supported Supported Supported Supported Engine- hybrid Grid-60Hz EN50438- Sweden Supported Supported Pakistan Pakistan Supported Supported Pakistan- Pakistan Supported Supported MV480 Austria Austria Supported Supported Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 152 Germany Supported Supported Supported N4110- MV480 Spain Supported Supported NTS- Spain MV Supported Supported MV480 C10/11- Belgium Supported Supported MV400 MV power grid India CEA Supported CEA- India CEA Supported MV480 Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 153 SUN2000 Code -125KTL- -110KTL- -100KTL- -100KTL- -100KTL- -75KTL- (Country/ INM0 Region/ Standard /Other) EN50549- Sweden Supported Supported DENMAR Denmark Supported Supported EN50549- DK1- LV230 DENMAR Denmark Supported Supported EN50549- DK2- LV230 Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 154: C Domain Name List Of Management Systems

    The list is subject to change. Table C-1 Domain names of management systems Domain Name Data Type Scenario intl.fusionsolar.huawei.co Public IP address FusionSolar hosting cloud NOTE The domain name is compatible with cn.fusionsolar.huawei.com (Chinese mainland). Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

  • Page 155: D Acronyms And Abbreviations

    D Acronyms and Abbreviations Acronyms and Abbreviations California Energy Commission Concentrated Photovoltaics technology light emitting diode MBUS monitoring bus maximum power point MPPT maximum power point tracking potential induced degradation photovoltaic Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.
  • Page 156 SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series User Manual D Acronyms and Abbreviations RCMU residual current monitoring unit WEEE waste electrical and electronic equipment Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd.

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