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Huawei SUN2000-111KTL-NHM0 User Manual

Huawei SUN2000-111KTL-NHM0 User Manual

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SUN2000-111KTL-NHM0
User Manual
Issue
09
Date
2023-12-18
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei SUN2000-111KTL-NHM0

  • Page 1 SUN2000-111KTL-NHM0 User Manual Issue Date 2023-12-18 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

    About This Document About This Document Overview This document describes the SUN2000-111KTL-NHM0 (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.
  • Page 4 Updated 7.1.2 Downloading and Installing the App. Updated Maintenance. Updated Troubleshooting. Added B Resetting Password. Issue 05 (2022-06-20) Updated 5.7 Connecting DC Input Power Cables. Updated Troubleshooting. Updated 10 Technical Specifications. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 5 7.1.5.3 Setting Feature Parameters. Updated 8.2 Power-Off for Troubleshooting. Updated Troubleshooting. Updated 8.7 Resetting and Turning On the DC Switch. Issue 01 (2021-03-31) This issue is used for first office application (FOA). Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 6: Table Of Contents

    5.1 Precautions....................................42 5.2 Preparing Cables................................... 43 5.3 Connecting the PE Cable..............................48 5.4 Opening the Maintenance Compartment Door......................49 5.5 (Optional) Installing the Power Cable of the Tracking System................51 Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 7 9 Handling the Inverter......................124 9.1 Removing the SUN2000..............................124 9.2 Packing the SUN2000............................... 124 9.3 Disposing of the SUN2000.............................. 124 10 Technical Specifications....................125 A Grid Codes..........................128 B Resetting Password......................129 Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 8 SUN2000-111KTL-NHM0 User Manual Contents C Domain Name List of Management Systems...............130 D Contact Information......................131 E Digital Power Customer Service..................133 F Acronyms and Abbreviations....................134 Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 9: Safety Information

    The equipment is damaged due to force majeure such as earthquakes, floods, volcanic eruptions, debris flows, lightning strikes, fires, wars, armed conflicts, typhoons, hurricanes, tornadoes, and other extreme weather conditions. ● The equipment is operated beyond the conditions specified in this document. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 10: Personal Safety

    D ANGER During operations, use dedicated insulated tools to prevent electric shocks or short circuits. The dielectric withstanding voltage level must comply with local laws, regulations, standards, and specifications. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 11 Professionals: personnel who are familiar with the working principles and structure of the equipment, trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation, operation, maintenance Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 12: Electrical Safety

    WARNING 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. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 13 If the equipment has multiple inputs, disconnect all the inputs before operating the equipment. ● Before maintaining a downstream electrical or power distribution device, turn off the output switch on the power supply equipment. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 14 For example, check that the current-carrying capacity meets requirements. ● When routing cables, reserve at least 30 mm clearance between the cables and heat-generating components or areas. This prevents deterioration or damage to the cable insulation layer. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 15: Environment Requirements

    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, performing outdoor installation, and opening Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Mechanical Safety

    Do not use tools that have signs of scratches or fail to pass the inspection or whose inspection validity period has expired. Ensure that the tools are secure and not overloaded. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 17 Move a heavy object stably with balanced force at an even and low speed. Put down the object stably and slowly to prevent any collision or drop from scratching the surface of the equipment or damaging the components and cables. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 18 If a single ladder is used, the recommended angle for the ladder against the floor is 75 degrees, as shown in the following figure. A square can be used to measure the angle. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 19 Do not drag steel ropes and hoisting tools or bump the hoisted objects against hard objects during hoisting. ● Ensure that the angle between two hoisting ropes is no more than 90 degrees, as shown in the following figure. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 20 To avoid short circuits or other risks, do not drill holes into buried pipes or cables. ● When drilling holes, protect the equipment from shavings. After drilling, clean up any shavings. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 21: Overview

    M0: product series with an input voltage level of 1100 V DC 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. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 22 Figure 2-3 Nameplate (1) Trademark and product model (2) Key technical specifications (3) Compliance symbols (4) Company name and country of origin NO TE The nameplate figure is for reference only. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 23: Overview

    AC power distribution unit, and step-up transformer. Figure 2-4 Networking (A) PV string (B) SUN2000 (C) AC combiner box (D) Transformer station (E) Power grid Supported Power Grid The inverter supports the IT power grid. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 24: Label Description

    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. Grounding Indicates the position for connecting the protective earthing (PE) cable. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 25: Product Appearance

    DC switch warning After a DC switch is automatically turned off, do not turn it on. Perform operations according to the alarm information and user manual. 2.4 Product Appearance Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 26: Appearance

    (2) Grid-tied indicator (3) Communication indicator indicator (4) Alarm/Maintenance (5) Host panel (6) Maintenance indicator compartment Bottom View NO TE The DC switch of the current model can be manual or automatic. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 27 (1) Spot-check terminal connection (2) DC input terminal group 1 (PV1– PV8, controlled by DC SWITCH 1) (3) (Optional) Screw hole for DC (4) DC switch 1 (DC SWITCH 1) switch 1 Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 28 ● Before turning on a DC switch, ensure that all alarms have been cleared. Table 2-2 DC Switch Description Switch Description Component DC SWITCH The DC switch is ON and can automatically turn off for protection. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 29: Indicator Status

    DC input voltage of the corresponding MPPT circuit is at least 200 V. Blinking green fast If the alarm/maintenance indicator is red, an environmental fault at the DC side of the solar inverter is generated. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 30 AC side of the solar inverter is generated. Communications Blinking green fast The solar inverter receives indicator communication data normally. The solar inverter has not received communication data for 10 seconds. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 31: Working Principles

    ● 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. 2.5 Working Principles Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 32: Circuit Diagram

    Surge protection is supported on both the DC and AC sides. Figure 2-9 Schematic diagram 2.5.2 Working Modes The SUN2000 can work in Standby, Operating, or Shutdown mode. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 33 ● 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 34: 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 35 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Installation

    After unpacking the inverter, check that the contents are intact and complete. If any damage is found or any component is missing, contact your supplier. NO TE Packing List in the packing case. For details about the number of contents, see the Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 37: Preparing Tools

    (head: M3) Utility knife Cable cutter Crimping tool Crimping tool Model: H4TC0003 Model: PV- CZM-22100 or Manufacturer: PV-CZM-19100 AMPHENOL Manufacturer: (For Amphenol Staubli Helios H4 connectors only) (For Staubli MC4 connectors only) Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 38 Helios H4 connectors only) Measuring tape Level Hydraulic pliers Heat shrink tubing Heat gun Cable tie Scissors RJ45 crimping tool Vacuum cleaner Rubber mallet Insulation resistance tester (Output voltage > 1500 V) Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 39: Determining The Installation Position

    4 Gauss. If the magnetic field strength is high, for example, in a smeltery, you are advised to use a gauss meter to measure the magnetic field strength of the inverter installation position when the smelting equipment is running Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 40 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 41 When installing multiple solar inverters, install them in horizontal mode if sufficient space is available and install them in triangle mode if no sufficient space is available. Stacked installation is not recommended. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 42 SUN2000-111KTL-NHM0 User Manual 4 Installation Figure 4-4 Horizontal installation mode (recommended) Figure 4-5 Triangle installation mode (recommended) Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 43: 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 44: 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 45: 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 46: Installing A Solar Inverter

    ● If the stud of a lifting handle is bent, replace the lifting handle in time. ● 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 47 When lifting the SUN2000, place your left hand on the edge of the host panel. Procedure 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 Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 48 Hoist the solar inverter with care to protect it from colliding with the wall or other objects. Figure 4-15 Hoisting the solar inverter Step 4 Install the solar inverter on the mounting bracket and align the solar inverter enclosure with the mounting bracket. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 49 SUN2000-111KTL-NHM0 User Manual 4 Installation Figure 4-16 Mounting the solar inverter Step 5 Secure the solar inverter. Figure 4-17 Tightening security Torx screws ----End Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 50: Electrical Connections

    The cable colors shown in the electrical connection diagrams provided in this chapter are for reference only. Select cables in accordance with local cable specifications (green-and- yellow cables are only used for grounding). Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 51: Preparing Cables

    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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 52 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 53 Implements power control at the grid- Prepared by the tied point in low voltage scenarios customer using a power meter. Support tracking system Adjusts the angle of the supports. Prepared by the customer Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 54 ● 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 55 (U, V, W, and PE) outdoor cable, M12 OT/DT terminals (U, V, and W), and M10 OT/DT terminals (PE). You do not need to prepare a PE cable. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 56: 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 57: 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 58 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. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 59: Optional) Installing The Power Cable Of The Tracking System

    ● Connect the power cable of the tracking system before the AC output power cable. Otherwise, reworking will be caused. Procedure Step 1 Prepare a cable. Step 2 Remove the corresponding rubber rings. Step 3 Connect the power cable of the tracking system. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 60: Connecting An Ac Output Power Cable

    Connect the AC output power cable according to the requirements specified by local power grid operators. ● Connect the power cable of the tracking system before the AC output power cable. Otherwise, reworking will be caused. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 61 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 62 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 5-10 Requirements for the OT/DT terminal Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 63 ● 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. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 64 SUN2000-111KTL-NHM0 User Manual 5 Electrical Connections Figure 5-12 Multi-core cable connections Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 65 ● The 32–36 mm cable is supported only by some models. Refer to the corresponding label to get the supported size. Figure 5-14 Closing the Maintenance Compartment Door ----End Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 66: Connecting Dc Input Power Cables

    The polarities of electric connections are correct on the DC input side. The positive and negative terminals of a PV module connect to corresponding positive and negative DC input terminals of the solar inverter. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 67 PV Strings Strings Any even-numbered route PV2 and PV10 PV2, PV10, and PV18 PV2, PV6, PV10, and PV18 PV2, PV6, PV10, PV14, and PV2, PV4, PV6, PV10, PV14, PV18 and PV18 Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 68: Connecting Cables To Amphenol Helios H4 Connectors

    PV string connector along the axial direction to check whether the connectors are securely connected. ● The connector must be securely connected. Damages caused by improper connection are not covered under the warranty. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 69 You can use a self-made tool to connect all PV– cables together through an adapter to test the insulation resistance between all PV– cables of a device and the ground at a time. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 70 PV string current reduces to below 0.5 A. Then, turn off the three DC switches, remove the positive and negative connectors, and rectify the connection of the DC input power cable. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 71 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. Figure 5-20 DC input power cabling requirement ----End Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 72: Connecting Cables To Staubli Mc4 Connectors

    If the voltage is greater than 1100 V, too many PV modules configured to the same string. Remove some PV modules. Step 6 Insert the positive and negative connectors into the corresponding DC positive and negative input terminals of the solar inverter. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 73 PV string current reduces to below 0.5 A. Then, turn off the three DC switches, remove the positive and negative connectors, and rectify the connection of the DC input power cable. Figure 5-22 Connector connection Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 74: Connecting The Rs485 Communications Cables

    PV connectors must not exceed 80 N. Radial stress or torque must not be generated on PV connectors. Figure 5-23 DC input power cabling requirement ----End 5.8 Connecting the RS485 Communications Cables Pin Definitions of the Communications Port Figure 5-24 Communications port Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 75 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 76 SUN2000-111KTL-NHM0 User Manual 5 Electrical Connections Figure 5-25 Connecting RS485 communications cables (4–8 mm four-hole rubber plug) Figure 5-26 Connecting RS485 communications cables (4–8 mm two-hole or three-hole rubber plug) Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 77: Commissioning

    The maintenance compartment door is closed and the door screws are tightened. Unused DC input terminals are sealed. Unused USB and RESET ports are plugged with watertight caps. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 78: Powering On The Sun2000

    ON. When you hear a click sound, the switch is ON. Step 3 Check the status of the PV connection indicator. If it is steady green, set DC SWITCH 2 and DC SWITCH 3 to ON. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 79 Step 4 Observe the LED indicators to check the operating status of the solar inverter. Step 5 Perform quick settings on the SUN2000 app. For details, see 7.1 Operations with App. ----End Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 80: 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 81: Downloading And Installing The App

    FusionSolar app: Scan the QR code and download the latest installation package. ● SUN2000 app: Log in to Huawei AppGallery , search for SUN2000, and download the app installation package. You can also scan the QR code to download the installation package.

  • Page 82: Logging In To The App

    ● After you select Use by default for this USB accessory, a message that asks you to confirm the USB access will not appear if you log in to the app again without removing the USB data cable. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 83 7 Man-Machine Interactions (Scenario in which the SUN2000 is connected to the FusionSolar SmartPVMS) Run the FusionSolar app and access the Device Commissioning screen. Figure 7-3 Selecting a connection mode (with network access) Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 84 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 85 ● 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 86: 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. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 87: Setting Protection Parameters

    If the detected value is less than the preset value, the inverter does not connect to the grid. 7.1.4.3 Setting Feature Parameters Procedure Step 1 Choose Function Menu > Settings > Feature Parameters to access the settings screen. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 88 AC switch from misoperations. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 89 – If this parameter is set to CPV 2, the inverter can quickly restart in 10 minutes if the input power of PV modules drops drastically due to shading. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 90 (min) interruption. Used for automatic shutdown for protection in case of communication interruption. Soft start/boot Specifies the duration for the time (s) power to gradually increase when the inverter starts. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 91: Operations Related To The Special User

    7.1.5 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. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 92: Setting Grid Parameters

    Isolation settings Set the working mode of the inverter based on the grounding status at DC side and the connection to the power grid. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 93: Setting Protection Parameters

    7.1.5.2 Setting Protection Parameters Procedure Step 1 Choose Function Menu > Settings > Protect Parameters to go to the parameter setting screen. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 94 Specifies the level-N grid undervoltage protection protection threshold (V) threshold. Level-N undervoltage Specifies the level-N grid undervoltage protection protection duration (ms) duration. Level-N overfrequency Specifies the level-N grid overfrequency protection protection threshold (Hz) threshold. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 95: Setting Feature Parameters

    Level-N underfrequency Specifies the level-N grid underfrequency protection protection duration (ms) duration. 7.1.5.3 Setting Feature Parameters Procedure Step 1 Choose Function Menu > Settings > Feature Parameters to access the settings screen. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 96 Threshold for Specifies the threshold for triggering LVRT. The This parameter is triggering threshold settings should meet the local grid displayed when LVRT LVRT (V) standard. is set to Enable. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 97 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 98 Enable. ● LVRT recovery threshold = Threshold for triggering LVRT + VRT exit hysteresis threshold ● HVRT recovery threshold = Threshold for triggering HVRT - VRT exit hysteresis threshold Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 99 Communicati Specifies the duration for determining communication interruption. Used for interruption automatic shutdown for protection in case of duration communication interruption. (min) Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 100: Setting Power Adjustment Parameters

    7.1.5.4 Setting Power Adjustment Parameters Procedure Step 1 Choose Function Menu > Settings > Power Adjustment to go to the parameter setting screen. Figure 7-13 Power adjustment parameters (special user) ----End Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 101 Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 102 (Hz) derating. overfrequency derating Cutoff power of Specifies the power threshold for < Cutoff frequency of overfrequency cutting off overfrequency derating. overfrequency derating. derating (%) Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 103 The inverter adjusts Q/S (the ratio curve of the output reactive power to apparent power) in real time based on U/Un(%) (the ratio of the actual power grid voltage to the rated power grid voltage). Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 104: Optional) Installing A Smart Dongle

    7.3 Upgrading the Inverter 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 105 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 106: Maintenance

    ● After the inverter powers off, the remaining electricity and heat may still cause electric shocks and body burns. Therefore, put on personal protective equipment (PPE) and begin servicing the inverter fifteen minutes after power- off. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 107: Power-Off For Troubleshooting

    Step 4 Measure the DC current of each PV input string using a clamp meter that is set to the DC position. ● If the current is less than or equal to 0.5 A, go to the next step. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 108: 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 109 USB ports are locked by waterproof caps. 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 or 12 months. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 110: Checking Spot-Check Terminals

    Table 8-2 Spot-check terminal definitions Silk Screen Description Port Function 1, 11 PV1/2–, PV1/2+ PV string input spot- Measures the resistance check port of PV string input to 2, 12 PV3/4–, PV3/4+ ground. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 111 , PV19/20+(PCS Note [1]: PCS- and PCS+ terminals are supported. Procedure Step 1 Open the connection box of the spot-check terminal. Figure 8-4 Opening the connection box Step 2 Connect the cables. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 112: 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 113 After the PV array is correctly configured, the device alarm is automatically cleared. 2. If the DC switches are off, contact your vendor or technical support. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 114 WebUI of the upper-layer controller. Alternatively, you can turn off the AC and DC switches, wait for 5 minutes, and then turn on the AC and DC switches. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 115 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 116 PV+ is set to negative offset, the voltage between the solar inverter PV+ and the ground should be less than 0 V to clear the alarms.) 4. If the alarm persists, contact technical support. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 117 1. The power grid experiences an 2. Check whether the AC outage. circuit is disconnected or the AC switch is off. 2. The AC circuit is disconnected or the AC switch is off. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 118 3. If the fault persists for a long time, check the AC circuit breaker and AC output power cable. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 119 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 120 If yes, log in to the mobile phone app, SmartLogger, or NMS to modify the power grid overfrequency protection threshold with the consent of the local power operator. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 121 2. If the alarm occurs frequently, check whether the grid frequency is within the acceptable range. If not, contact the local power operator. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 122 PV string is short- circuited to the ground due to damage. 2. If the alarm occurs frequently or persists, check whether the impedance between the PV string and the ground is too low. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 123 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 124 Cause ID = 1–4 1. Perform an upgrade Failed or again. The upgrade does not complete Software normally. 2. If the upgrade fails for Version multiple times, contact Unmatch your dealer or technical support. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 125 5 minutes and the fan is damaged. wait for the solar inverter to connect to the power grid. If the fault persists, contact your dealer or technical support. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 126 AC output switch and the DC input switch. Wait until the inverter connects to the power grid. If the fault persists 5 minutes later, contact your dealer or technical support. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 127: Replacing A Fan

    If the fan tray gets stuck when being pulled or pushed, slightly lift it. Step 1 Remove the screw on the fan tray and save it. Pull out the fan tray until the fan baffle plate aligns with the inverter chassis. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 128 Figure 8-9 Pulling out fan tray (2) Step 4 Remove cable ties from the faulty fan. ● FAN 1 Faulty Figure 8-10 Removing the FAN 1 cable ties ● FAN 2 Faulty Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 129 Figure 8-14 Installing a new fan Step 7 Bind the fan cables. ● Binding positions for fan 1 Figure 8-15 Binding the FAN 1 cables ● Binding positions for fan 2 Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 130 Step 9 Connect the cables correctly according to the cable labels and bind the cables. Figure 8-19 Reconnecting and binding the cables Step 10 Push the fan tray into the slot and tighten the screw. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 131: Resetting And Turning On The Dc Switch

    Step 2 Set the DC switches to ON. Step 3 Tighten the caps of the RESET buttons. Figure 8-21 Resetting and turning on the DC Switch (DC SWITCH 1 is used as an example) ----End Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 132: 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 133: Technical Specifications

    Note a: The maximum input voltage is the upper threshold of the DC voltage. If the input voltage exceeds the threshold, the solar inverter may be damaged. Note b: If the input voltage is beyond the operating voltage range, the solar inverter cannot work properly. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 134 Input reverse connection protection Supported PV string fault detection Supported DC surge protection Type II AC surge protection Type II Insulation resistance detection Supported Residue current monitoring (RCMU) Supported Overvoltage category PV II/AC III Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 135 4000 m Relative humidity 0%–100% RH Amphenol Helios H4 Input terminal Output terminal Crimping module + OT/DT terminal IP rating IP66 Topology Transformerless Note [1]: Some devices use Staubli MC4 connectors. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 136: A Grid Codes

    Japan power grid (480 V/50 Hz) Japan standard (60Hz) Japan power grid (480 V/60 Hz) NO TE The grid codes are subject to change. The listed codes are for your reference only. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 137: B Resetting Password

    NO TICE ● SUN2000 V500R001C00SPC126 and later versions support password reset. ● You are advised to reset the password in the morning or at night when the solar irradiance is low. Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 138: 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.com Public IP address FusionSolar hosting cloud NOTE The domain name is compatible with cn.fusionsolar.huawei.com (Chinese mainland). Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 139: D Contact Information

    To ensure faster and better services, we kindly request your assistance in providing the following information: ● Model ● Serial number (SN) ● Software version ● Alarm ID or name ● Brief description of the fault symptom Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 140 SUN2000-111KTL-NHM0 User Manual D Contact Information NO TE EU Representative Information: Huawei Technologies Hungary Kft. Add.: HU-1133 Budapest, Váci út 116-118., 1. Building, 6. floor. Email: hungary.reception@huawei.com Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 141: E Digital Power Customer Service

    SUN2000-111KTL-NHM0 User Manual E Digital Power Customer Service Digital Power Customer Service https://digitalpower.huawei.com/robotchat/ Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

  • Page 142: F Acronyms And Abbreviations

    F 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 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.
  • Page 143 SUN2000-111KTL-NHM0 User Manual F Acronyms and Abbreviations RCMU residual current monitoring unit WEEE waste electrical and electronic equipment Issue 09 (2023-12-18) Copyright © Huawei Technologies Co., Ltd.

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