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Huawei SUN2000-125KTL-JPH0 User Manual

Huawei SUN2000-125KTL-JPH0 User Manual

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SUN2000-125KTL-JPH0
User Manual
Issue
15
Date
2024-01-30
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei SUN2000-125KTL-JPH0

  • Page 1 SUN2000-125KTL-JPH0 User Manual Issue Date 2024-01-30 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

    Purpose This document describes the installation, electrical connections, commissioning, maintenance, and troubleshooting of the SUN2000-125KTL-JPH0 (also referred to as SUN2000). Before installing and operating the inverter, ensure that you are familiar with the features, functions, and safety precautions provided in this document.
  • Page 4 5.6 Connecting the AC Output Power Cable. Added 7.2 Upgrading the Inverter. Deleted the content about operations related to a USB flash drive. Updated 8.6 Alarm Reference. Added E Resetting Password. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 5 Updated 8.6 Alarm Reference. Issue 05 (2021-06-01) Updated 5.7 Installing the DC Input Power Cable. Issue 04 (2021-04-26) Updated 5.7 Installing the DC Input Power Cable. Updated A Securing Y-Branch Connectors. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 6 5.7 Installing the DC Input Power Cable. Issue 02 (2021-01-30) Updated 4.2 Preparing Tools. Updated 5.7 Installing the DC Input Power Cable. Issue 01 (2020-09-30) This issue is used for first office application (FOA). Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 7: Table Of Contents

    4.4.2 Wall-mounted Installation............................. 35 4.5 Installing the Inverter................................36 5 Electrical Connections......................40 5.1 Precautions....................................40 5.2 Crimping an OT or DT Terminal............................41 5.3 Opening the Maintenance Compartment Door......................44 Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 8 9 Handling the Inverter......................101 9.1 Removing the SUN2000..............................101 9.2 Packing the SUN2000............................... 101 9.3 Disposing of the SUN2000.............................. 101 10 Technical Data........................102 A Securing Y-Branch Connectors..................105 B String Access Detection..................... 108 Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 9 C Domain Name List of Management Systems...............111 D Grid Code..........................112 E Resetting Password......................113 F Digital Power Customer Service..................114 G Digital Power Customer Service..................115 H Acronyms and Abbreviations...................116 Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd. viii...

  • Page 10: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 11: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 12 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 13: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 14 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 15 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Environment Requirements

    Keep the installation and operating environments of the equipment within the allowed ranges. Otherwise, its performance and safety will be compromised. ● The operating temperature range provided in the equipment's technical specifications refers to the ambient temperatures in equipment's installation environment. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 17 When installing the equipment, ensure that the installation surface is solid enough to bear the weight of the equipment. ● After installing the equipment, remove the packing materials such as cartons, foam, plastics, and cable ties from the equipment area. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 18: Mechanical Safety

    If two persons or more move a heavy object together, ensure that the object is lifted and landed simultaneously and moved at a uniform pace under the supervision of one person. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 19 Ensure that the ladder is securely positioned and held firm. ● When climbing up the ladder, keep your body stable and your center of gravity between the side rails, and do not overreach to the sides. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 20 During hoisting, do not stand or walk under the crane or the hoisted objects. ● Do not drag steel ropes and hoisting tools or bump the hoisted objects against hard objects during hoisting. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 21 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 22: Overview

    125K: The rated output power is 125 kW. Topology identifier TL: transformerless Region identifier JP: Japan Product series identifier H0: product series with an input voltage level of 1500 V DC Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 23 User Manual 2 Overview NO TE The SUN2000-125KTL-JPH0 inverter must not be connected to a winding (of the transformer station) that has other models of inverters connected to it. Networking Application The SUN2000 applies to grid-tied PV systems for commercial rooftop projects and utility-scale plants.

  • Page 24: Appearance

    SUN2000-125KTL-JPH0 User Manual 2 Overview 2.2 Appearance Dimensions Front View (1) PV connection (2) Grid connection (3) Communication indicator indicator indicator (4) Alarm/Maintenance (5) Host panel (6) Maintenance indicator compartment Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 25 A minor alarm is generated. intervals Blinking red at long A warning alarm is generated. intervals Steady green Local maintenance succeeds. Blinking green at long In local maintenance or shuts down over a intervals command. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 26 (5) DC switch 2 (DC SWITCH 2) (6) DC input terminals (controlled by DC SWITCH 3) (7) DC switch 3 (DC SWITCH 3) (8) Ventilation valve (9) USB port (USB) (10) Communications port (COM) Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 27 The DC switches automatically turn off when a fault occurs in the inverters (LED4 is steady red, and the three DC switches are OFF). In this case, contact your technical support. Do not turn on the DC switches by yourself. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 28: Label Description

    ● Residual voltage exists after the inverter is powered off. It takes 15 minutes for the inverter to discharge to the safe voltage. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 29: Product Nameplate

    Before replacing the fan, disconnect warning its power connector. Inverter ESN label Indicates the inverter serial number. Weight label The inverter needs to be carried by four persons or using a forklift. 2.3.2 Product Nameplate Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 30: Working Principles

    MPPT circuits inside the 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 31: Working Modes

    SUN2000-125KTL-JPH0 User Manual 2 Overview Figure 2-7 Inverter conceptual diagram 2.4.2 Working Modes The SUN2000 can work in Standby, Operating, or Shutdown mode. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 32 ● 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 33: Contact Information

    Alarm ID or name ● Brief description of the fault symptom 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 34: Storage Requirements

    ● Inverters must be stored in a clean and dry environment with appropriate temperature and humidity. The air must not contain corrosive or flammable gases. Figure 3-1 Storage temperature and humidity Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 35 Do not store inverters for more than two years. If inverters have been stored for two years or longer, they must be checked and tested by professionals before being put into use. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Installation

    NO TE Packing List in the packing case. For details about the number of contents, see the 4.2 Preparing Tools Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 37 Vacuum cleaner Removal wrench Crimping tool Model: Model: PV- CZM-41100; 13001462 manufacturer: manufacturer: Staubli Staubli Multimeter Marker Measuring tape Bubble or digital level DC voltage measurement range ≥ 1500 V DC Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 38: Determining The Installation Position

    This is to avoid personal injury or property loss caused by accidental contact by non- professionals or other reasons during device operation. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 39 10 m, or the total distances from two adjacent inverters to the AC combiner box or the low- voltage panel of the transformer station must be at least 20 m. The inverter Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 40: Clearance Requirements

    Reserve sufficient clearance around the inverter for installation and heat dissipation. The inverter provides self-protection in high-temperature environments. The impact of environment changes on the clearance for heat dissipation needs be considered during design. The clearance around the Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 41 When installing multiple SUN2000s, 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 42 SUN2000-125KTL-JPH0 User Manual 4 Installation Figure 4-4 Horizontal installation mode (recommended) Figure 4-5 Triangle installation mode (recommended) Figure 4-6 Stacked installation mode (not recommended) Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 43: Installing The Mounting Bracket

    Before installing the mounting bracket, remove the security torx wrench from the mounting bracket and set it aside. Figure 4-8 Removing a security torx wrench 4.4.1 Support-mounted Installation Support-mounted Installation Step 1 Install the mounting bracket. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 44: 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. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 45: Installing The Inverter

    Before installing the inverter, take it out from the packing case and move it to the installation position. NO TE Handles are packed in a fitting bag and are not delivered with the inverter. Figure 4-11 Taking out and moving the inverter Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 46 Figure 4-12 Lifting positions Installing the Inverter Step 1 Mount the inverter on the mounting bracket. Step 2 Tighten the two screws at the bottom of the inverter. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 47 SUN2000-125KTL-JPH0 User Manual 4 Installation Figure 4-13 Installation ----End Supplementary Notes If the inverter is installed in a high position, you can hoist it. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 48 SUN2000-125KTL-JPH0 User Manual 4 Installation Figure 4-14 Hoisting the inverter Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 49: Electrical Connections

    ● Only certified electrician can perform electrical terminations. ● Operation personnel must wear PPE when connecting cables. ● Before connecting cables to ports, leave enough slack to reduce the tension on the cables and prevent poor cable connections. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 50: Crimping An Ot Or Dt Terminal

    ● If copper-aluminum transition spacers are used, pay attention to the front and rear sides. 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. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 51 ● Wrap the wire crimping area with a heat shrink tubing or PVC insulation tape. The heat shrink tubing is used as an example. ● When using a heat gun, protect devices from being scorched. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 52 (4) OT terminal (5) Hydraulic pliers (6) Heat gun Figure 5-3 Crimping a DT terminal (1) Cable (2) Core (3) Heat shrink tubing (4) DT terminal (5) Hydraulic pliers (6) Heat gun Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 53: Opening The Maintenance Compartment Door

    Step 3 Remove the accessories that are bound in the maintenance compartment for future use. NO TE For some models, a three-hole rubber plug is bound in the maintenance compartment. After removing the rubber plug, save it properly for future use. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 54: Optional) Replacing The Crimping Module

    5.4 (Optional) Replacing the Crimping Module Procedure NO TE If the AC output power cable has a single core, replace the crimping module. Step 1 Replace the crimping module. Figure 5-6 Replacing the crimping module ----End Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 55: Optional) Installing The Power Cable Of The Tracking System

    Recommended: dual-layer three-core outdoor copper cable with a conductor cross-sectional area of 10 mm Procedure Step 1 Connect the power cable of the tracking system to the terminal block. Figure 5-7 Cable connection ----End Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 56: Connecting The Ac Output Power Cable

    The PE point in the maintenance compartment is used for connecting to the PE cable included in the multi-core AC power cable. ● There are two ground points on the chassis shell and you only need either of them. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 57 PE cable produces a conductance equivalent to that of the cable specified in this table. The specifications of the PE cable are subject to this table or calculated according to IEC 60364-5-54. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 58 Sufficient slack should be provided in the PE cable to ensure that the last cable bearing the force is the PE cable when the AC output power cable bears pulling force due to force majeure. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 59 SUN2000-125KTL-JPH0 User Manual 5 Electrical Connections Figure 5-9 Cable connection ----End Connecting the AC Output Power Cable (Single-core) Step 1 Connect the AC cable to the terminal block. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 60: Installing The Dc Input Power Cable

    DC circuit, such as connecting or disconnecting a PV string or a PV module in the PV string. Failure to do so may cause electric shocks or arcing, which may also cause fire. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 61 7–12, and DC SWITCH 3 controls DC input terminals 13–18. Figure 5-11 DC terminals Requirements for selecting DC input terminals: Evenly distribute the DC input power cables on the DC input terminals controlled by the three DC switches. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 62 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 63 MPPT1, MPPT2, MPPT1, MPPT2, MPPT3, MPPT4, MPPT3, MPPT4, MPPT5, MPPT6, MPPT5, MPPT6, and MPPT7 MPPT7, and MPPT8 MPPT1, MPPT2, MPPT3, MPPT4, MPPT5, MPPT6, MPPT7, MPPT8, and MPPT9 Figure 5-12 Y-branch Connector Solution Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 64 ● Do not connect aluminum or aluminum alloy DC power cables directly to the DC terminals of the inverter. ● The 1500 V PV cables must comply with IEC 62930 or EN 50618. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 65 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. Figure 5-13 Cable connection Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 66 During DC input power cabling, leave at least 150 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 5-15 DC input power cabling requirement ----End Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 67: Installing The Communications Cable

    SmartLogger. PE, shielding ground PE, shielding ground RS485-2 RS485A, RS485 RS485B, RS485 Used for connecting differential signal+ differential signal– to RS485 slave devices. Procedure Step 1 Install the communications cable. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 68 SUN2000-125KTL-JPH0 User Manual 5 Electrical Connections Figure 5-17 Cable connection (4–8 mm four-hole rubber plug) NO TICE Block unused cable holes using plugs and tighten cable glands. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 69: Closing The Maintenance Compartment Door

    ● Block unused cable holes using plugs and tighten cable glands. ----End 5.9 Closing the Maintenance Compartment Door Procedure Step 1 Adjust the support bar, close the maintenance compartment door and tighten the two screws on the door. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 70 SUN2000-125KTL-JPH0 User Manual 5 Electrical Connections Figure 5-19 Closing the door ----End Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 71: Commissioning

    CT75AFJB5/HY024-FHG-4) to seal the terminals. Device damage caused by the absence of sealing plugs is not covered by warranty. Figure 6-1 Sealing plugs with snap-fits 10. Check that idle USB ports are plugged with waterproof plugs. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 72: System Power-On

    The inverter can start normally after the fault is automatically cleared. Step 2 Set DC SWITCH 1 (MAIN SWITCH) at the bottom of the SUN2000 chassis to ON. When you hear a click sound, the switch is ON. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 73 SUN2000-125KTL-JPH0 User Manual 6 Commissioning Step 3 Check the status of LED 1. If it is steady green, set DC SWITCH 2 and DC SWITCH 3 to ON. ----End Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 74: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 75: 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 76: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 77 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 78 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 79 ● 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 80: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 81: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 82 AC switch from misoperations. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 83 – 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 84 (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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 85: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 86: Setting Grid Parameters

    Specifies whether to allow the inverter to automatically grid recovery start after the power grid recovers. Grid connected recovery Specifies the time after which the inverter begins time from grid faults (s) restarting after the power grid recovers. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 87 (%) Reactive power Specifies the voltage threshold for exiting reactive power compensation (cosφ-P) exit compensation based on the cosφ-P curve. voltage (%) Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 88: Setting Protection Parameters

    10-min overvoltage protection Specifies the 10-minute overvoltage protection threshold (V) threshold. 10-min overvoltage protection Specifies the 10-minute overvoltage protection duration (ms) duration. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 89: Setting Feature Parameters

    Level-1 underfrequency Specifies the level-1 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 90 For example, if you set LVRT gradient K1 to 2, the increment of positive-sequence reactive current generated by the solar inverter is 20% of the rated current when the AC voltage decreases by 10% during LVRT. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 91 Threshold for Specifies the threshold for triggering HVRT. The This parameter is triggering threshold settings should meet the local grid displayed when HVRT HVRT (V) standard. is set to Enable. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 92 A transient voltage jump indicates that the threshold (%) inverter cannot immediately disconnect from the power grid when the power grid is abnormal due to transient changes. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 93 Specifies the maximum length of the TCP frame length sent by the northbound device to the solar inverter. Heartbeat Specifies the timeout period for the solar period at inverter to connect to the management system. application layer (min) Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 94: Setting Power Adjustment Parameters

    Schedule instruction Specifies the time for maintaining When this parameter is set valid duration (s) the scheduling instruction. to 0, the scheduling instruction takes effect permanently. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 95 This parameter is displayed power compensation at night, the when Night-time reactive compensation reactive power is scheduled by power output and Enable (kVar) fixed value. reactive power parameters at night are set to Enable. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 96 Specifies the recovery rate of the gradient of overfrequency derating power. overfrequency derating (%/min) PF (U) voltage Specifies the time for filtering the detection filtering grid voltage in the PF-U curve. time (s) Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 97: Upgrading The Inverter

    Step 1 Download the required software upgrade package from the technical support website. Step 2 Decompress the upgrade package and copy all files to the root directory of the USB flash drive. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 98 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 99: Maintenance

    (PPE) and begin servicing the inverter fifteen minutes after power- off. Procedure Step 1 Run a shutdown command on the SUN2000 app, SmartLogger, or network management system (NMS). For details, see the user manual of the corresponding product. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 100: Power-Off For Troubleshooting

    Step 5 Open the maintenance compartment door, install a support bar, and use a multimeter to measure the voltage between the AC terminal block and the ground. Ensure that the AC side of the solar inverter is disconnected. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 101: Routine Maintenance

    If necessary, remove the baffle of the air intake vent. ● Fans ● Check whether the fans produce abnormal sounds during operation. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 102 Based on the local around the as required. wilting season inverters ● Clean the site promptly after weeding. Removing the baffle of the air intake vent Figure 8-1 Removing the baffle Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 103: Checking Test Terminals

    9, 19 PV17/18–, PV17/18+ 10, 20 PV19/20-(PCS-), DC bus terminal test Measures the insulation PV19/20+(PCS+) port resistance of the bus+/ bus– terminal to the NOTE ground. PCS- and PCS+ terminals are supported. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 104 ● Test terminals support cables with a cross-sectional area of 0.25 mm to 2.5 mm Step 3 Perform the spot check. Step 4 Tighten the screws in the connection box of the test terminal. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 105: Replacing A Fan

    Figure 8-6 Pulling out fan tray (1) Step 2 Remove the cable ties shared by the cables, unscrew the connectors, and disconnect the cables. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 106 Step 4 Remove cable ties from the faulty fan. ● FAN 1 Faulty Figure 8-9 Removing the FAN 1 cable ties ● FAN 2 Faulty Figure 8-10 Removing the FAN 2 cable ties ● FAN 3 Faulty Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 107 Binding positions for fan 1 Figure 8-14 Binding the FAN 1 cables ● Binding positions for fan 2 Figure 8-15 Binding the FAN 2 cables ● Binding positions for fan 3 Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 108 Step 9 Connect the cables correctly according to the cable labels and bind the cables. Figure 8-18 Reconnecting and binding the cables Step 10 Push the fan tray into the slot and tighten the screw. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 109: Alarm Reference

    Step 2 Set the DC switches to ON. Step 3 Tighten the caps of the RESET buttons. Figure 8-20 Resetting and Turning On the DC Switch (DC SWITCH 1 is used as an example) ----End Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 110: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 111: Technical Data

    Maximum backfeed current to the PV array Lowest operating/startup voltage 500 V/550 V Operating voltage range 500–1500 V Full-load MPPT voltage range 800–1100 V Rated input voltage 900 V Number of inputs Number of MPP trackers Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 112 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 113 Operating temperature –25°C to +60°C Cooling mode Intelligent air cooling Highest operating altitude 4000 m Humidity 0%–100% RH Input terminal MC4 EVO2 Output terminal Waterproof terminal+OT/DT terminal IP rating IP66 Topology Transformerless Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 114: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 115 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 116 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 117: B String Access Detection

    In these cases, the user is liable for any loss caused to the PV plant. Step 2 Choose Function Menu > Maintenance > String Access Detection to go to the parameter setting screen. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 118 When the current of a PV string reaches for 2 in 1 Startup current for 2 in 1 detection, the detection PV string is automatically identified as 2 in You are advised to use the default value. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 119 You are advised to retain the default value. If the value is incorrectly set, the PV string access type may be incorrectly identified and alarms may be generated by mistake for the PV string connection status. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 120: 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 121: D Grid Code

    Japan-MV550-50Hz Japan power grid (550 V/50 Hz) Japan-MV550-60Hz Japan power grid (550 V/60 Hz) NO TE The grid codes are subject to change. The listed codes are for your reference only. Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 122: E Resetting Password

    NO TICE ● SUN2000HA V300R001C00SPC133 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 123: F Digital Power Customer Service

    SUN2000-125KTL-JPH0 User Manual F Digital Power Customer Service Digital Power Customer Service https://digitalpower.huawei.com/robotchat/ Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 124: G Digital Power Customer Service

    SUN2000-125KTL-JPH0 User Manual G Digital Power Customer Service Digital Power Customer Service https://digitalpower.huawei.com/robotchat/ Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

  • Page 125: H Acronyms And Abbreviations

    H 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 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.
  • Page 126 SUN2000-125KTL-JPH0 User Manual H Acronyms and Abbreviations RCMU residual current monitoring unit WEEE waste electrical and electronic equipment Issue 15 (2024-01-30) Copyright © Huawei Technologies Co., Ltd.

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