Huawei SUN2000-70KTL-C1 User Manual
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Huawei SUN2000-70KTL-C1 User Manual

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SUN2000-(70KTL, 75KTL)-C1
User Manual
Issue
09
Date
2020-10-12
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei SUN2000-70KTL-C1

  • Page 1 SUN2000-(70KTL, 75KTL)-C1 User Manual Issue Date 2020-10-12 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 Purpose This document describes the SUN2000-70KTL-C1 and SUN2000-75KTL-C1 (SUN2000 for short) in terms of its installation, electrical connections, commissioning, maintenance, and troubleshooting. Before installing and operating the SUN2000, ensure that you are familiar with the features, functions, and safety precautions provided in this document.
  • Page 4 10 Technical Specifications. Issue 04 (2018-09-30) Updated 5.6.3 (Optional) Installing the Solar Tracker Power Cable. Issue 03 (2018-07-30) Updated 5.4 Installing the AC Output Power Cable. Updated 7.2.1.3 Setting Feature Parameters. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 5 About This Document Updated Troubleshooting. Issue 02 (2018-04-01) Added description about the SUN2000-75KTL-C1. Updated 2.3.1 Enclosure Labels. Updated Storage. Issue 01 (2017-09-30) This issue is used for first office application (FOA). Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 6: Table Of Contents

    4.3.1 Environment Requirements............................21 4.3.2 Space Requirements................................. 22 4.4 Installing the Mounting Bracket............................25 4.4.1 Support-mounted Installation............................26 4.4.2 Wall-mounted Installation............................. 28 4.5 Installing the SUN2000............................... 30 5 Electrical Connections......................35 5.1 Precautions....................................35 Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 7 8.1 Routine Maintenance................................96 8.2 Troubleshooting..................................97 9 Handling the Inverter......................105 9.1 Removing the SUN2000..............................105 9.2 Packing the SUN2000............................... 105 9.3 Disposing of the SUN2000.............................. 105 10 Technical Specifications....................106 Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 8 SUN2000-(70KTL, 75KTL)-C1 User Manual Contents A Grid Code..........................110 B Domain Name List of Management Systems...............111 C Product User Lists....................... 112 D Acronyms and Abbreviations................... 113 Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 9: 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 10: 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 11: Electrical Safety

    Do not connect or disconnect power cables with power on. Transient contact between the core of the power cable and the conductor will generate electric arcs or sparks, which may cause fire or personal injury. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 12: Installation Environment Requirements

    Ensure that the ladder is securely positioned. The recommended angle for a ladder against the floor is 75 degrees, as shown in the following figure. An angle rule can be used to measure the angle. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 13: Commissioning

    When the equipment is powered on for the first time, ensure that professional personnel set parameters correctly. Incorrect settings may result in inconsistency with local certification and affect the normal operation of the equipment. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 14: Maintenance And Replacement

    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 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 15: Overview

    The SUN2000 is a three-phase grid-tied PV string inverter that converts the DC power generated by PV strings into AC power and feeds the power to the power grid. Models Figure 2-1 Designation explanation of the SUN2000-70KTL-C1 Model Rated Output Power Rated Output Voltage...
  • Page 16 (industrial environment), the SUN2000 is powered by a dedicated power transformer instead of connecting to low-voltage overhead power lines. Supported Power Grid The SUN2000 only supports the IT power grid mode. Figure 2-3 Supported power grid Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 17: Appearance

    Status Meaning Steady green At least one PV string is connection properly connected, and the DC input voltage of the corresponding MPPT circuit is higher than or equal to 200 V. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 18 ● If the alarming and the local maintenance happen concurrently, 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. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 19 USB port Holes Reserved at the Side of the Enclosure NO TE There are two M6 tapped holes reserved on both sides of the enclosures, which are used for installing an awning. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 20: Label Description

    SUN2000. Grounding Indicates the position for connecting the PE cable. Operation warning Do not remove the DC input connector when the SUN2000 is running. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 21 3. Turn off the two DC switches at the bottom. SUN2000 serial Indicates the SUN2000 number (SN) label Weight label The SUN2000 needs to be carried by four people or using a pallet truck. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 22: Product Nameplate

    SUN2000-(70KTL, 75KTL)-C1 User Manual 2 Overview 2.3.2 Product Nameplate Figure 2-4 Nameplate of the SUN2000-70KTL-C1 (1) Trademark, product name, and (2) Important technical specifications model number (3) Compliance symbols (4) Company name and place of production NO TE The nameplate figure is for reference only.

  • Page 23: Working Modes

    SUN2000-(70KTL, 75KTL)-C1 User Manual 2 Overview Figure 2-5 SUN2000 conceptual diagram 2.4.2 Working Modes The SUN2000 can work in Standby, Operating, or Shutdown mode. Figure 2-6 Working modes Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 24 ● 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 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 25: 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 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 26 SUN2000-(70KTL, 75KTL)-C1 User Manual 3 Storage ● 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 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 27: Installation

    NO TE Packing List in the packing case. For details about the number of contents, see the 4.2 Tools Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 28 Cable cutter Crimping tool RJ45 crimping tool Model: UTXTC0005 or H4TC0003; manufacturer: Amphenol Removal wrench Vacuum cleaner Multimeter Marker Model: H4TW0001; DC voltage manufacturer: measurement range Amphenol ≥ 1100 V DC Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 29: Determining The Installation Position

    ● Do not install the inverter in areas with flammable materials. ● Do not install the inverter in areas with explosive materials. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 30: Space Requirements

    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 31 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 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 32 SUN2000-(70KTL, 75KTL)-C1 User Manual 4 Installation Figure 4-3 Horizontal installation mode (recommended) Figure 4-4 Triangle installation mode (recommended) Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 33: Installing The Mounting Bracket

    Mark any hole in each group based on site requirements and mark four holes in total. Two round holes are preferred. Before installing the mounting bracket, remove the security torx wrench from the mounting bracket and save it for later use. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 34: Support-Mounted Installation

    Figure 4-8 Determining hole positions Step 2 Drill holes using a hammer drill. NO TE You are advised to apply anti-rust paint on the hole positions for protection. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 35 M12x40 bolt assemblies are provided with the SUN2000. If the bolt length does not meet the installation requirements, prepare M12 bolt assemblies by yourself and use them together with the provided M12 nuts. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Wall-Mounted Installation

    Figure 4-11 Determining hole positions Step 2 Drill holes using a hammer drill and install expansion bolts. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 37 Step 3 Align the mounting bracket holes with the drilled holes, insert expansion bolts into the holes through the mounting bracket, and then tighten the expansion bolts. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 38: Installing The Sun2000

    Before installing the SUN2000, take it out from the packing case and move it to the installation position. Figure 4-14 Taking out a SUN2000 CA UTION To prevent device damage and personal injury, keep balance when moving the SUN2000 because it is heavy. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 39 Step 4 Run a lifting sling through the lifting eyes of the SUN2000. CA UTION When lifting the SUN2000, keep balance to prevent the SUN2000 impacting with a wall or other objects. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 40 SUN2000-(70KTL, 75KTL)-C1 User Manual 4 Installation Figure 4-15 Lifting a SUN2000 NO TE The figure is for reference only. Step 5 Install the SUN2000 on the mounting bracket. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 41 SUN2000-(70KTL, 75KTL)-C1 User Manual 4 Installation Figure 4-16 Mounting the SUN2000 onto a mounting bracket Step 6 Tighten the two antitheft screws using a security torx wrench. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 42 SUN2000-(70KTL, 75KTL)-C1 User Manual 4 Installation Figure 4-17 Tightening antitheft screws ----End Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 43: Electrical Connections

    Select cables in accordance with local cable specifications (green-and- yellow cables are only used for grounding). 5.2 Crimping the OT Terminal Requirements for the OT Terminal ● If a copper cable is used, use a copper wiring terminal. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 44 Ensure that the aluminum side of the washer contacts the aluminum wiring terminal, and the copper side contacts the AC terminal block. Figure 5-1 Requirements for the OT terminal Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 45: Opening The Maintenance Compartment Door

    Figure 5-2 Crimping the OT Terminal (1) Cable (2) Core wire (3) Heat shrink tubing (4) OT terminal (5) Hydraulic pliers (6) Heat gun 5.3 Opening the Maintenance Compartment Door Precautions Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 46 Figure 5-3 Loosening screws NO TE If the screws on the enclosure door are lost, obtain spare screws from the fitting bag bound to the inductor cover at the bottom of the enclosure. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 47 Step 2 Open the maintenance compartment door and keep it open with the support bar. Figure 5-5 Keeping the door open with a support bar Step 3 Remove the cover and hang it on the hook of the door. Figure 5-6 Removing a cover ----End Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 48: Installing The Ac Output Power Cable

    The ground point in the maintenance compartment is mainly used for connecting to the ground cable included in the multi-core AC power cable. ● There are two ground points on the enclosure and you only need either of them. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 49 Installing the PE Cable Step 1 Crimp an OT terminal. Step 2 Secure the PE cable using the ground screw. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 50 4. Adjusting a cable when the thread-lock sealing nut is tightened will shift the rubber fitting, which will affect the Ingress Protection Rating of the device. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 51 NO TICE Ensure that the jacket is in the maintenance compartment. Figure 5-9 Three-core cable (A) Core wire (B) Insulation layer (C) Jacket Figure 5-10 Four-core cable Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 52 ● If the AC output power cables are subject to a pulling force because the inverter is not installed stably, ensure that the last cable that bears the stress is the PE cable. Figure 5-11 Connecting an AC output power cable (three core wires) Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 53: Connecting Dc Input Power Cables

    Step 7 Clear debris from the maintenance compartment. CA UTION Ensure that there are no cable residues, scraps, or conductive dusts in the maintenance compartment. ----End 5.5 Connecting DC Input Power Cables Precautions Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 54 The SUN2000 provides 12 DC input terminals, among which terminals 1 to 6 are controlled by DC switch 1 and terminals 7 to 12 are controlled by DC switch 2. Figure 5-13 DC terminals Select DC input terminals according to the following rules: Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 55 ● Crimp the metal stamping forming contacts using crimping tool H4TC0003 (Amphenol, recommended), H4TC0002 (Amphenol), PV-CZM-22100 (Staubli), or PV-CZM-19100 (Staubli). When choosing PV-CZM-22100 or PV-CZM-19100, do not use the locator. Otherwise, metal contacts would be damaged. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 56 (1) Locator Figure 5-15 Preparing positive and negative connectors (using metal cold forming contacts) (1) Positive metal contact (cold forming) (2) Negative metal contact (cold forming) (3) Positive connector (4) Negative connector Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 57 Step 2 Use a multimeter to measure the DC voltage between the positive and negative of the PV string and confirm the string polarity. NO TICE The DC voltage measurement range of the multimeter must be at least 1100 V. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 58 DC input terminals of the SUN2000 until they snap into place. NO TICE After the positive and negative connectors snap into place, pull test to the DC input power cable is recommended. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 59: Installing The Communications Cable

    SmartLogger, embedded WebUI, or the network management software (such as the NetEco) on the PC to query information about the SUN2000, such as energy yields, alarms, and running status. ● Figure 5-19 shows the communication mode for a single SUN2000. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 60 The built-in MBUS module in the SUN2000 does not need to be connected with additional cables. Selecting a Communication Mode ● The SUN2000 with no user interface board supports only MBUS communication. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 61: Installing The Rs485 Communications Cable

    Terminal block connection Recommended: DJYP2VP2-22 2x2x1 PC cable or communications cable with a conductor cross-sectional area of 1 mm and a cable outer diameter of 14–18 ● RJ45 network port connection Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 62: Terminal Block Connection

    Table 5-3 Port definitions of the RS485 terminal block Port Definition Description RS485A IN RS485A, differential signal+ RS485A OUT RS485A, differential signal+ RS485B IN RS485B, differential signal– RS485B OUT RS485B, differential signal– Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 63 Step 2 Route the communications cable through the cable gland. Figure 5-24 Routing a cable Step 3 Remove the cable terminal base from the terminal block, and connect the communications cable to the terminal base. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 64 Step 4 Land the cables in the terminal block, and bond the shield layer to the ground point. NO TE When connecting the shielded cable, crimp the OT terminal if required. Figure 5-26 Connecting communications cables Step 5 Bundle communications cables after connecting them. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 65: Connecting Cables To The Rj45 Network Port

    RJ45 Connector Pin Definitions Figure 5-28 shows an RJ45 connector. Figure 5-28 RJ45 connector Table 5-4 lists the RJ45 connector pin definitions. Table 5-4 RJ45 connector pin definitions Color Function White-and-orange RS485A, differential signal+ Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 66 Figure 5-29 Preparing an RJ45 connector (1) White-and-orange (2) Orange (3) White-and-green (4) Blue (5) White-and-blue (6) Green (7) White-and-brown (8) Brown Step 2 Route the communications cable through the cable gland. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 67 Figure 5-30 Routing a cable Step 3 Insert the RJ45 connector into the RJ45 network port in the SUN2000 maintenance compartment. Figure 5-31 Connecting communications cables Step 4 Bundle communications cables after connecting them. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 68: Optional) Installing The Solar Tracker Power Cable

    2.5 meters. WARNING Do not place flammable materials around the cable. Cable Specifications Recommended: dual-layer three-core outdoor copper cable with a conductor cross-sectional area of 10 mm Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 69 AC output power cable. Step 3 Connect the solar tracker power cable to the terminal block, and secure the terminal using a torque wrench with an extension rod. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 70 (Ensure that the jacket is in the maintenance compartment.) Figure 5-36 Stripping a cable (A) Core wire (B) Insulation layer (C) Jacket Step 2 Remove the shielding cover from wiring terminals. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 71 5 Electrical Connections Figure 5-37 Removing a shielding cover Step 3 Route the cable through the cable gland. Figure 5-38 Routing a cable Step 4 Connect the solar tracker power cable. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 72: Closing The Maintenance Compartment Door

    Figure 5-40 Installing a shielding cover Step 6 Tighten the cable gland and seal the waterproof connector. ----End 5.7 Closing the Maintenance Compartment Door Procedure Step 1 Install the AC terminal cover. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 73 Step 2 Retrieve the support bar. Figure 5-42 Retrieving a support bar Step 3 Close the maintenance compartment door and tighten the two screws on the door. Figure 5-43 Tightening screws ----End Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 74: Commissioning

    11. Check that unused DC input terminals are sealed. 12. Check that unused USB port is plugged with watertight cap. 13. Check that unused cable glands are plugged and the thread-lock sealing nuts are tightened. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 75: Powering On The Sun2000

    SUN2000 app. ● Use the USB data cable delivered with the mobile phone. The port type is USB 2.0. ● The screen snapshots in this document correspond to app 3.2.00.001 (Android). Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 76 Figure 6-2 Login screen Figure 6-3 Selecting a connection mode Step 4 Tap the user name area on the SUN2000 app to switch between Common User, Advanced User, and Special User. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 77 ● You are advised to log in to the Quick Settings screen as Advanced User for parameter settings. ● Set the correct grid code based on the application region and scenario of the SUN2000. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 78 SmartLogger and cannot be duplicate. Otherwise, the communication will fail. In addition, the baud rates of all the SUN2000s on each RS485 route must be consistent with the SmartLogger baud rate. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 79: Powering Off The System

    Step 1 Run a shutdown command on the SUN2000 app, SmartLogger, or NMS. FusionSolar APP and SUN2000 APP User Manual , SmartLogger For details, see the User Manual , or iManager NetEco 1000S User Manual . Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 80: Power-Off For Troubleshooting

    Ensure that the AC side of the solar inverter is disconnected. Step 6 Turn off all DC input switches of the solar inverter. Step 7 Wait for 15 minutes and troubleshoot or repair the inverter. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 81 ● If the solar inverter does not emit odor or smoke and is intact, repair or restart it based on the alarm handling suggestions. Do not stand in front of the solar inverter during the restart. ----End Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 82: Man-Machine Interactions

    FusionSolar APP and SUN2000 APP User Manual . Import the boot script file to a PC. (Optional) The boot script file can be opened as a .txt file. Figure 7-1 Boot script file Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 83 There is an operation with a USB flash drive. Blinking green fast An operation with a USB flash drive has failed. Steady green An operation with a USB flash drive is successful. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 84: Importing Configurations

    SUN2000 app or entering the Device Commissioning screen on the FusionSolar app. Otherwise, the user account will be locked for 10 minutes after the USB flash drive is inserted for five consecutive times. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 85: Exporting Data

    SUN2000 app or entering the Device Commissioning screen on the FusionSolar app. Otherwise, the user account will be locked for 10 minutes after the USB flash drive is inserted for five consecutive times. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 86: Upgrading

    SUN2000 app or entering the Device Commissioning screen on the FusionSolar app. Otherwise, the user account will be locked for 10 minutes after the USB flash drive is inserted for five consecutive times. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 87: Operations With The Sun2000 App

    NO TE ● Configurable parameters vary depending on the grid code. The actual display prevails. ● The parameter names, value ranges, and default values are subject to change. The actual display prevails. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 88: Operations Related To The Advanced User

    DC side and the connection status to the grid. 7.2.1.2 Setting Protect Parameters Procedure Step 1 Choose Function Menu > Settings > Protect Parameters to access the settings screen. Figure 7-3 Protect parameters (advanced user) ----End Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 89: Setting Feature Parameters

    The scanning interval is set by scanning scenarios where PV strings are MPPT multi-peak scanning obviously shaded, enable this interval. function. Then the SUN2000 will perform MPPT scanning at regular intervals to locate the maximum power. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 90 PID voltage compensation during the reactive power compensation at night. Power quality If Power quality optimization mode optimization mode is set to Enable, the inverter output current harmonics will be optimized. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 91 PID running mode is set to Repair. PID daytime off-grid Specifies whether to enable the PID This parameter is displayed only if repair daytime off-grid repair. PID running mode is set to Repair. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 92 Hibernate at night The SUN2000 monitors PV strings at night. If Hibernate at night is set to Enable, the monitoring function of the SUN2000 will hibernate at night, reducing power consumption. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 93: Operations Related To The Special User

    7.2.2 Operations Related to the Special User If you log in to the app as Special User, you can set grid parameters, protection parameters, feature parameters, and power adjustment parameters for the SUN2000. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 94: Setting Grid Parameters

    Specifies whether to allow the SUN2000 to automatically start after the power grid recovers. Grid connection duration after power Specifies the waiting time for SUN2000 restart after grid recovery (s) the power grid recovers. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 95: Setting Protection Parameters

    Specifies the voltage threshold for exiting reactive exit voltage (%) power compensation based on the cosφ-P curve. 7.2.2.2 Setting Protection Parameters Procedure Step 1 Choose Function Menu > Settings > Protection Parameters to access the settings screen. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 96 Level-1 UV protection time (ms) Specifies the level-1 undervoltage protection duration. Level-2 UV protection (V) Specifies the level-2 undervoltage protection threshold. Level-2 UV protection time (ms) Specifies the level-2 undervoltage protection duration. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 97: Setting Feature Parameters

    Specifies the level-2 underfrequency protection duration. 7.2.2.3 Setting Feature Parameters Procedure Step 1 Choose Function Menu > Settings > Feature Parameters to access the settings screen. Figure 7-7 Feature parameters (special user) Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 98 2, the reactive power the SUN2000. generated by the inverter is 20% of the rated power when the AC voltage drops by 10% during LVRT. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 99: Setting Power Adjustment Parameters

    SUN2000 restarts after the power grid recovers. 7.2.2.4 Setting Power Adjustment Parameters Procedure Step 1 Choose Function Menu > Settings > Power Adjustment to access the settings screen. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 100 Apparent power Adjusts the apparent output baseline baseline (kVA) of the inverter. Active power Adjusts the active output baseline of baseline (kW) the inverter. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 101 Night-time reactive night based on the setting of Reactive power output is set to Enable. power compensation at night. Otherwise, the inverter executes the remote scheduling command. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 102 Enable, the inverter will perform active power derating by percentage when the communication between the inverter and the SmartLogger or Smart Dongle is disconnected for more than the time specified by Communication disconnection detection time. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 103 SmartLogger or Smart disconnection fail-safe is set to Dongle. Enable. Active power output Specifies the derating value of the limit for fail-safe (%) inverter active power by percentage. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 104: Maintenance

    Once every six status damaged or deformed. months ● Check that the running sound of the SUN2000 is normal. ● When the SUN2000 is running, check that all SUN2000 parameters are correctly set. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 105: Troubleshooting

    ● Minor: Some components are faulty without affecting the grid-tied power generation. ● Warning: The inverter works properly. The output power decreases or some authorization functions fail due to external factors. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 106 PV modules in series correspond to PV strings 1 to 12. to this PV string. 2. Check the open-circuit voltage of the PV string. 3. Check that the PV string is not shaded. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 107 3. If the fault persists for a long time, check the AC circuit breaker and AC output power cable. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 108 If no, contact the local power operator. If yes, modify the power grid overfrequency protection threshold with the consent of the local power operator. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 109 2. If the alarm occurs therefore the inverter protection is frequently and affects the triggered. power production of the PV plant, check whether the output is short-circuited. If the fault persists, contact Huawei technical support. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 110 SUN2000 is correctly well insulated to ground. connected. 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 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 111 1. The flash memory is ring turn them on after 15 insufficient. Unit minutes. If the fault persists, 2. The flash memory has bad replace the monitoring board sectors. or contact Huawei technical support. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 112 2. If the fault persists, contact your supplier/ Huawei technical support. NO TE Contact Huawei technical support if all failure analysis procedures listed above are completed and the fault still exists. Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 113: 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 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 114: Technical Specifications

    Maximum short-circuit 39 A 30 A current (per MPPT) Maximum SUN2000 backfeed current to the PV array Full power MPPT voltage 625–850 V range Rated input voltage 750 V Number of inputs Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 115 Input DC switch Supported Anti-islanding protection Supported Output overcurrent Supported protection Input reverse polarity Supported protection PV string fault detection Supported DC surge protection Type II AC surge protection Type II Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 116 Item SUN2000-75KTL-C1 SUN2000-70KTL-C1 Dimensions (W x H x D) 1075 mm x 555 mm x 300 mm Net weight 73 kg±1 kg Operating temperature –25°C to +60°C Cooling mode Natural convection Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.
  • Page 117 User Manual 10 Technical Specifications Item SUN2000-75KTL-C1 SUN2000-70KTL-C1 Maximum operating 4000 m altitude Humidity 0%–100% RH Input terminal Amphenol Helios H4 Output terminal Cable gland+OT terminal Ingress Protection Rating IP65 Topology Transformerless Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 118: A Grid Code

    User Manual A Grid Code Grid Code NO TE The grid codes are subject to change. The listed codes are for reference only. Grid Code Description CHINA_MV500 China medium-voltage power grid Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 119: B Domain Name List Of Management Systems

    The list is subject to change. Table B-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 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 120: C Product User Lists

    SUN2000-(70KTL, 75KTL)-C1 User Manual C Product User Lists Product User Lists User Name Initial Password Common User 00000a Advanced User 00000a Special User 00000a Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

  • Page 121: D Acronyms And Abbreviations

    LVRT low voltage ride-through maximum power point MPPT maximum power point tracking potential induced degradation photovoltaic residual current device WEEE waste electrical and electronic equipment Issue 09 (2020-10-12) Copyright © Huawei Technologies Co., Ltd.

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