Huawei SUN2000-55KTL Series User Manual
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Huawei SUN2000-55KTL Series User Manual

Three-phase grid-tied pv string inverter
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SUN2000-(55KTL, 60KTL) Series
User Manual
Issue
06
Date
2020-01-03
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei SUN2000-55KTL Series

  • Page 1 SUN2000-(55KTL, 60KTL) Series User Manual Issue Date 2020-01-03 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

    NOTICE is used to address practices not related to personal injury. Supplements the important information in the main text. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 4 Updated 5.2 Crimping the OT Terminal. Issue 02 (2017-07-30) Updated 5.3 Connecting a ground cable. Updated 10 Technical Specifications. Issue 01 (2017-06-15) This issue is used for first office application (FOA). Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 5: Table Of Contents

    6 System Commissioning ......................58 6.1 Checking Before Power-On ............................58 6.2 DC Input Detection ..............................58 6.3 Powering On the SUN2000 ............................60 6.4 Powering Off the SUN2000 ............................65 Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 6 9.3 Disposing of the SUN2000 ............................104 10 Technical Specifications ......................105 A Domain Name List of Management Systems ..............110 B Grid Codes ..........................111 C Acronyms and Abbreviations ....................116 Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 7: Safety Precautions

    Before performing operations, read through this manual and follow all the precautions to prevent accidents. The safety precautions provided in this document do not cover all the safety precautions. Huawei shall not be liable for any consequence caused by the violation of the safety operation regulations and design, production, and usage standards.
  • Page 8  Do not touch an energized inverter because the heat sink may be over 60º C.  Follow local laws and regulations when operating the equipment. Maintenance and Replacement Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 9 Rectify any faults that may compromise the inverter security performance before powering on the inverter again.  Observe ESD precautions during the maintenance.  For personal safety, wear insulation gloves and safety shoes. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 10: Overview

    The SUN2000 applies to grid-tied PV systems for commercial rooftops and large plants. Typically, a grid-tied PV system consists of PV strings, grid-tied inverters, AC power distribution units, and step-up transformers. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 11: Appearance

    The SUN2000 applies to the AC power system with the neutral point grounding of the box-type transformer. The SUN2000 itself does not connect to any neutral wire. 2.2 Appearance SUN2000 Dimensions Figure 2-5 shows the SUN2000 dimensions. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 12 Figure 2-5 SUN2000 dimensions Front view 2.2 Appearance shows the SUN2000 front view. Figure 2-6 Front view (1) Maintenance (2) LED indicator (3) Host panel compartment door Table 2-1 describes the LED indicators. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 13 (on for 1s and progress. status then off for 1s) Blinking green at short Local maintenance fails. intervals (on for 0.125s and then off for 0.125s) Steady green Local maintenance succeeds. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 14 DC SWITCH 2 Waterproof cable connector (inner COM1, COM2, COM3 diameter: 14–18 mm) DC input terminal (controlled by +/– DC SWITCH 1) DC input terminal (controlled by +/– DC SWITCH 2) Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 15: Label Description

    Remind operators to refer to the documentation documents shipped with the SUN2000. Grounding Indicates the position for connecting the protection ground cable. Operation Do not remove the DC input warning connector when the SUN2000 is running. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 16 You are advised to attach the label at the bottom of the SUN2000 front side, as shown in Figure 2-8. You can also select an appropriate place for attaching the label based on site requirements. Figure 2-8 Place for attaching Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 17: Working Principle

    The SUN2000 receives inputs from eight PV strings. Then the inputs are grouped into four MPPT routes inside the SUN2000 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 Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 18 Figure 2-10 SUN2000 conceptual diagram Working Modes The SUN2000 can work in standby, operating, or shutdown mode. Figure 2-11 shows the relationship between the three working modes. Figure 2-11 SUN2000 working modes Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 19 In standby or operating mode, the SUN2000 enters the shutdown mode after detecting a fault or shutdown command.  In shutdown mode, the SUN2000 enters the standby mode after detecting a startup command or that a fault is rectified. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 20: Inverter 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 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 21: 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. For details about the number of contents, see the Packing List in the packing case. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 22: Materials

    Model: UTXTC0001 or H4TC0001; manufacturer: Model: UTXTC0002; Amphenol manufacturer: Amphenol Vacuum cleaner Removal wrench Removal wrench Model: UTXTWA001; Model: H4TW0005; manufacturer: Amphenol manufacturer: Amphenol Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 23 Bubble or digital level Hydraulic pliers Heat shrink tubing Heat gun Cable tie Personal protective equipment (PPE) Safety gloves Safety goggles Anti-dust respirator Safety shoes Choose one from UTXTWA001 and H4TW0005. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 24: Determining The Installation Position

    Recommended: Install the SUN2000 in a sheltered place or a place with an awning. Figure 4-2 Awning Carrier Requirements  The mounting structure where the SUN2000 is installed must be fire-resistant.  Do not install the SUN2000 on flammable building materials. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 25 The SUN2000 dimensions (W x H x D) are 930 mm x 600 mm x 270 mm. Reserve enough clearance around the SUN2000 to ensure sufficient space for installation and heat dissipation. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 26 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. Figure 4-5 Horizontal installation mode (recommended) Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 27 SUN2000-(55KTL, 60KTL) Series User Manual 4 Installation Figure 4-6 Triangle installation mode (recommended) Figure 4-7 Stacked installation mode (not recommended) Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 28: 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 for later use. Figure 4-9 Removing a security torx wrench Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 29 Figure 4-10 Determining hole positions Step 2 Drill holes using a hammer drill and install expansion bolts. Figure 4-11 Drilling a hole and installing an expansion bolt Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 30 Step 1 Determine the positions for drilling holes using the mounting bracket. Level the positions of mounting holes using a bubble or digital level, and mark the positions with a marker. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 31 Step 3 Align the mounting plate holes with the drilled holes, insert bolt assemblies (flat washers, spring washers, and M12x40 bolts) into the holes through the mounting plate, and secure them using the shipped stainless steel nuts and flat washers. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 32: Installing The Sun2000

    Before installing the SUN2000, take it out from the packing case and move it to the installation position. To prevent device damage and personal injury, keep balance when moving the SUN2000 because it is heavy. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 33 Figure 4-16 Lifting a SUN2000 Step 4 Run a lifting sling through the lifting eyes of the SUN2000. When lifting the SUN2000, keep balance to prevent the SUN2000 impacting with a wall or other objects. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 34 4 Installation Figure 4-17 Lifting a SUN2000 The figure is for reference only. Step 5 Install the SUN2000 on the mounting bracket and align the SUN2000 chassis with the mounting bracket. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 35 User Manual 4 Installation Figure 4-18 Mounting the SUN2000 onto a mounting bracket Step 6 Tighten the two antitheft screws using a security torx wrench. Figure 4-19 Tightening antitheft screws ----End Precautions Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 36  If the solar inverter has not been running for more than half a year after being mounted, it must be checked and tested by professionals before being put into operation. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 37: Electrical Connections

    If a copper-clad aluminum cable is used, use a copper wiring terminal.  If an aluminum alloy cable is used, use a copper to aluminum adapter terminal or an aluminum wiring terminal with a copper to aluminum adapter washer. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 38 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 Crimping the OT terminal Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 39: Connecting A Ground Cable

    , and the conductor cross-sectional area should be greater than or equal to half of the conductor cross-sectional area of the AC power cable.  OT terminal: M6 and matching the wire gauge of chosen Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 40: Opening The Maintenance Compartment Door

    Figure 5-3 Connecting a ground cable ----End Follow-up Procedure Recommendation: To enhance the corrosion resistance of a ground terminal, silica gel or paint might be needed. 5.4 Opening the Maintenance Compartment Door Prerequisites Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 41 Step 2 Open the maintenance compartment and use the support bar to stabilize the door. The support bar is bound to the inductor cover at the chassis base. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 42: Connecting Ac Output Power Cables

    A three-phase AC switch needs to be configured outside the AC side of the SUN2000. To ensure that the SUN2000 can safely disconnect from the power grid under abnormal conditions, select an appropriate overcurrent protection device according to local power distribution regulations. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 43 If you connect a ground cable to the ground point in the maintenance compartment, prepare an M6 OT terminal by yourself. Procedure Step 1 Remove an appropriate length of the jacket and insulation layer from the AC output power cable using a wire stripper. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 44 For ease of connecting the AC output power cable, you are advised to remove the nut assembly from the AC terminal and save it for later use, and then route the cable through the waterproof connector. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 45 5 Electrical Connections Figure 5-9 Routing cables Step 4 Land the AC output power cable in the terminal block, and tighten the nuts with a torque wrench to achieve a proper torque value. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 46 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 5-10 Connecting an AC output power cable (three-core cable) Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 47: Connecting Dc Input Power Cables

    When the SUN2000 is grid-tied, it is not allowed to work on DC circuit, such as connecting or disconnecting a PV string or a PV module in a PV string. Failing to do so may cause electric shocks or arcing (which may further cause fire). Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 48 DC input terminals. Figure 5-12 DC terminals Table 5-2 Requirements for selecting DC terminals Number of Inputs SUN2000 Connects to set 1. Connects to sets 1 and 5. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 49 Use the Amphenol UTX PV connectors provided with the SUN2000. If the terminals are lost or damaged, purchase the PV connectors of the same model. The device damaged caused by incompatible PV connectors is not covered under any warranty or service agreement. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 50 (1) Locator Figure 5-14 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 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 51 Step 2 Tighten the locking nuts on the positive and negative connectors. Figure 5-16 Locking a nut Step 3 Use a multimeter to measure the DC voltage between the positive and negative of the PV string and confirm the string polarity. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 52 5, ensure that the two DC switches are OFF. Step 5 Insert the positive and negative connectors into the corresponding positive and negative DC input terminals of the SUN2000 until they snap into place. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 53 Wait until the solar irradiance declines and the PV string current reduces to below 0.5 A, and then turn off the two DC switches and remove the positive and negative connectors. Correct the string polarity before reconnecting the string to the SUN2000. ----End Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 54: Connecting The Communications Cable

    SmartLogger2000, a maximum of six daisy chains can be configured.  To ensure the system response speed, it is recommended that the number of devices on each daisy chain be less than 30. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 55: Connecting The Rs485 Communications Cable

    Select either connection mode during installation. Terminal block connection is preferred. When laying out communications cables, separate them from power cables and avoid large signal interference sources to protect communication from being affected. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 56 RS485B, differential signal– Connecting Cables to the Terminal Block Step 1 Remove an appropriate length of the jacket and core wire insulation layer from the communications cable using a wire stripper. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 57 Step 2 Route the communications cable through the waterproof connector. Figure 5-23 Routing cables Step 3 Remove the cable terminal base from the terminal block. Connect the communications cable to the terminal base. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 58 Step 4 Install the terminal base on the terminal block, and connect the shield layer to the ground point. When connecting the shielded cable, crimp the OT terminal if required. Figure 5-25 Connecting communications cables Step 5 Bind communications cables after connecting them. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 59 RJ45 Connector Pin Definitions Figure 5-27 shows an RJ45 connector. Figure 5-27 RJ45 connector Table 5-5 lists the RJ45 connector pin definitions. Table 5-5 RJ45 connector pin definitions Color Function White-and-orange RS485A, differential signal+ Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 60 Step 1 Prepare an RJ45 connector. Figure 5-28 Preparing an RJ45 connector (2) Orange (3) White-and-green (4) Blue White-and-orange (5) White-and-blue (6) Green (8) Brown White-and-brown Step 2 Route the communications cable through the waterproof connector. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 61 Figure 5-29 Routing cables Step 3 Insert the RJ45 connector into the RJ45 network port in the SUN2000 maintenance compartment. Figure 5-30 Connecting communications cables Step 4 Bind communications cables after connecting them. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 62: Closing The Maintenance Compartment Door

    Step 5 Tighten the sealing nut and seal the cable gland. ----End 5.8 Closing the Maintenance Compartment Door Procedure Step 1 Install the AC terminal cover. Figure 5-32 Installing a cover Step 2 Retrieve the support bar. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 63 Figure 5-33 Retrieve the support bar Step 3 Close the maintenance compartment door and tighten the two screws on the door. Figure 5-34 Tightening screws on the maintenance compartment door ----End Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 64: System Commissioning

    The SUN2000 provides four MPPT circuits with eight DC input terminals, as shown in Figure 6-1. After one PV string correctly connects to the MPPT1 circuit, the SUN2000 can start the DC input detection function. DC input detection can be performed automatically or manually. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 65 PV string voltage equals the lowest operating voltage of the SUN2000.  The DC input detection only functions when the two DC switches on the SUN2000 are OFF. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 66: Powering On The Sun2000

    The audible alarm can be manually turned off by pressing DC input detection button twice.  The DC input detection only functions when the two DC switches on the SUN2000 are OFF. 6.3 Powering On the SUN2000 Prerequisites Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 67 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 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 68 User Manual 6 System Commissioning Figure 6-4 Login screen Figure 6-5 Selecting a connection mode Step 5 Tap the user name area to switch between Common User, Advanced User, and Special User. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 69 Settings screen. Set the correct grid code based on the application region and scenario of the SUN2000.  You are advised to log in to the Quick Settings screen as an advanced user for parameter settings. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 70 SUN2000s on each RS485 route must be within the address range set on the 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 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 71: Powering Off The Sun2000

    Step 1 Run a shutdown command on the SUN2000 APP, SmartLogger, or NMS. For details, see the SUN2000 APP User Manual or SmartLogger User Manual or iManager NetEco 1000S User Manual. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 72: Power-Off For Troubleshooting

    Step 6 Turn off all DC input switches of the solar inverter. Step 7 Wait for 15 minutes and troubleshoot or repair the inverter. ----End Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 73 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 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 74: Man-Machine Interactions

    Step 2 Import the boot script file to a PC. (Optional) The boot script file can be opened as a .txt file, as shown in Figure 7-1. Figure 7-1 Boot script file Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 75 Step 5 Insert the USB flash drive into a computer and check the exported data. When the configuration export is complete, the boot script file and exported file are in the root directory of the USB flash drive. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 76: Importing Configurations

    Blinking green at short intervals (on An operation with a USB for 0.125s and then off for 0.125s) flash drive has failed. Steady green An operation with a USB flash drive is successful. ----End Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 77: Exporting Data

    After the data is exported, the boot script file and exported file are in the root directory of the USB flash drive. ----End 7.1.4 Upgrading Procedure Step 1 Obtain the software upgrade package from the technical support website. Step 2 Decompress the upgrade package. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 78 There is no operation with a USB flash drive. Blinking green at long intervals (on There is an operation with for 1s and then off for 1s) a USB flash drive. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 79: Operations With The Sun2000 App

    7.2.1 Operations Related to the Advanced User Description If you log in to the app as Advanced User, you can set the grid parameters, protection parameters, and feature parameters for the SUN2000. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 80: Setting Grid Parameters

    Input ungrounded, with TF 7.2.1.2 Setting Protection Parameters Procedure Step 1 Choose Function Menu > Settings > Protection Parameters to access the parameters setting screen. Figure 7-3 Protection parameter (advanced user) ----End Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 81: Setting Feature Parameters

    7.2.1.3 Setting Feature Parameters Procedure Step 1 Choose Function Menu > Settings > Feature Parameters to access the settings screen. Figure 7-4 Feature Parameters (advanced user) ----End Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 82 Input SUN2000 can perform ungrounded, with a reactive power transformer. compensation at night to ensure that the power factor of the local power grid meets requirements. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 83 − If PV module type is set to CPV 2, the inverter can quickly restart in 10 minutes when the input power of PV modules drops drastically due to shading. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 84 Enable  Disable ation enabled, the SUN2000  Enable resumed automatically starts startup after communication recovers. If this parameter is disabled, the SUN2000 needs to be started manually after communication recovers. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 85 Disable communic that support both  Enable ation RS485 and MBUS (PLC) communication, when RS485 communication is used, you are advised to set MBUS communication to Disable to reduce power consumption. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 86 String Specifies the delay [2, 720] detection time for generating high power abnormal string alarms delay when the SUN2000 detects that a PV string is working with high power. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 87 Smax_limit] Smax_limit, this power to adapt to the parameter is not displayed. capacity requirements for standard and customized transformers. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 88 DC input If DC input detection Enable  Disable detection is set to Disable, the  Enable SUN2000 does not perform automatic DC input detection or manual DC output detection. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 89: Operations Related To The Special User

    SUN2000. 7.2.2.1 Setting Grid Parameters Procedure Step 1 Choose Function Menu > Settings > Grid Parameters to access the parameters setting screen. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 90 The displayed value prevails. Grid Specifies the waiting time for [0, 900] connection SUN2000 restart after the duration after power grid recovers. power grid recovery Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 91 The default value [100, 110] power threshold for triggering varies depending compensation reactive power compensation on the grid code. (cosφ-P) based on the cosφ-P curve. The displayed trigger voltage value prevails. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 92: Setting Protection Parameters

    Parameter List  The default values in the following table vary depending on the grid code. The displayed values prevail.  Vn represents the rated voltage and Fn represents the rated frequency. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 93 Level-1 UF Specifies the level-1 underfrequency [0.85 x Fn, 1 x Fn] protection protection threshold. Level-1 UF Specifies the level-1 underfrequency [50, 7200000] protection time protection duration. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 94: Setting Feature Parameters

    Specifies the level-4 undervoltage [50, 7200000] protection time protection duration. 7.2.2.3 Setting Feature Parameters Procedure Step 1 Choose Function Menu > Settings > Feature Parameters to access the parameters setting screen. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 95 This is called LVRT. LVRT Specifies the threshold for [50%Vn, 92%Vn] threshold triggering LVRT. LVRT Specifies whether to shield the  Disable undervoltage undervoltage protection  Enable protection function during LVRT. shield Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 96 SUN2000 be derated according point must be to a certain gradient when the greater than that output voltage exceeds a of Voltage rise certain value. suppression reactive adjustment point. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 97: Setting Power Adjustment Parameters

    7.2.2.4 Setting Power Adjustment Parameters Procedure Step 1 Choose Function Menu > Settings > Power Adjustment to access the parameters setting screen. Figure 7-8 Power Adjustment (special user) ----End Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 98 50 frequency overfrequency Hz, the value derating derating. range is 45.00–55.00  When the output frequency is 60 Hz, the value range is 55.00–65.00 Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 99 SUN2000-(55KTL, 60KTL) Series User Manual 7 Man-Machine Interactions Parameter Description Unit Default Value Range Remarks Value Recovery Specifies the power %/min [5, 20] gradient of recovery gradient for over overfrequency frequency derating. derating Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 100: System Maintenance

    Once six months status damaged or deformed.  Check that the running sound of the inverter is normal.  When the inverter is running, check that all inverter parameters are correctly set. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 101: 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 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 102 Excessive PV modules are connected in series to PV strings 7 and 8, and therefore the PV string open-circuit voltage exceeds the inverter maximum operating voltage. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 103 PV strings.  Cause ID = 2 Check whether the number of PV modules connected in series to the inverter is small. If yes, increase the number. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 104  Cause ID = 12/15 An unrecoverable fault occurs on a circuit inside the inverter. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 105 If no, contact the local exceeds the specified upper power operator. If yes, log in to threshold. the SUN2000 APP, SmartLogger, or the NetEco to modify the  Cause ID = 19 Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 106 Cause ID = 32 Check the impedance of output phase wire B to the PE cable, locate the position with lower impedance, and resolve the issue. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 107 SUN2000 app, SmartLogger, or NMS and set Insulation resistance protection. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 108 DC input switch. Then turn on the An unrecoverable fault occurs AC output switch and DC input on a circuit inside the inverter. switch after 5 minutes. If the fault persists, contact Huawei technical support. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 109  The flash memory has bad sectors. If you cannot rectify faults with the measures listed in the preceding table, contact Huawei technical support. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 110: Handling The Inverter

    If the original packing materials are not available, put the SUN2000 inside a suitable cardboard box and seal it properly. 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 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 111: Technical Specifications

    0KTL-HV- HV-D1 D1-001 D1-001 Maximum 1500 V input voltage Maximum 22 A input current (per MPPT) Maximum 30 A short-circuit current (per MPPT) Maximum inverter backfeed current to the PV array Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 112 66,000 W 66,000 W 66,000 W active power (cosφ = 1) Rated output 800 V AC, 3W+PE line voltage Rated output 43.3 A 39.7 A 39.7 A 39.7 A 43.3 A current Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 113 Islanding Supported protection Output Supported overcurrent protection Input reverse Supported polarity protection PV string Supported fault detection DC surge Type II protection AC surge Type II protection Insulation Supported resistance detection Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 114 –25° C to +60° C Operating temperature Cooling Natural convection mode Maximum 4000 m operating altitude Humidity 0%–100% RH Input Amphenol UTX terminal Output Waterproof cable connector+OT terminal terminal Ingress IP65 Protection Rating Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 115 SUN2000-(55KTL, 60KTL) Series User Manual 10 Technical Specifications Item SUN2000-6 SUN2000-5 SUN2000-5 SUN2000-5 SUN2000-6 0KTL-HV- 5KTL-HV- 5KTL-IN- 5KTL-HV- 0KTL-HV- HV-D1 D1-001 D1-001 Topology Transformerless Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 116: A Domain Name List Of Management Systems

    The list is subject to change. Table A-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 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 117: B Grid Codes

    BDEW-MV800 Germany medium-voltage power grid ABNT NBR 16149-MV800 Brazil medium-voltage power grid UTE C 15-712-1-MV800 France power grid EN50438-TR-MV800 Turkey power grid NRS-097-2-1-MV800 South Africa power grid DUBAI-MV800 Dubai power grid Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 118 DUBAI-MV800 Dubai power grid CEI0-21-MV800 Italy power grid IEC 61727-MV800-60Hz General CEI0-16-MV800 Italy medium-voltage power grid VDE-AR-N4120_HV800 VDE4120 standard power grid Table B-4 lists the grid codes that the SUN2000-55KTL-HV-D1-001 supports. Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 119 Nigeria medium-voltage power grid ABUDHABI-MV800 Abu Dhabi medium-voltage power grid LEBANON-MV800 Lebanon medium-voltage power grid Jordan-Transmission-HV800 Jordan high-voltage power grid TUNISIA-MV800 Tunisia medium-voltage power grid VDE-AR-N4120_HV800 VDE4120 standard power grid IEEE 1547-MV800 General Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 120 CEI0-21-MV800 Italy power grid IEC 61727-MV800-60Hz General BRASIL-ANEEL-MV800 Brazil power grid CEI0-16-MV800 Italy medium-voltage power grid ARGENTINA-MV800 Argentina medium-voltage power grid JAMAICA-MV800 Jamaica medium-voltage power grid VDE-AR-N4120_HV800 VDE4120 standard power grid Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 121 B Grid Codes Grid Code Description RD1699/661-MV800 Spain medium-voltage power grid PO12.3-MV800 Spain medium-voltage power grid Vietnam-MV800 Vietnam medium-voltage power grid Chile-PMGD-MV800 Chile PMGD medium-voltage power grid TAIPOWER-MV800 Taiwan power medium-voltage power grid Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 122: C Acronyms And Abbreviations

    Acronyms and Abbreviations central controller light emitting diode maximum power point MPPT maximum power point tracking potential induced degradation power line communication photovoltaic residual current device WEEE waste electrical and electronic equipment Issue 06 (2020-01-03) Copyright © Huawei Technologies Co., Ltd.

This manual is also suitable for:

Sun2000-60ktl seriesSun2000-55ktl-hv-d1Sun2000-55ktl-in-hv-d1Sun2000-55ktl-hv-d1-001Sun2000-60ktl-hv-d1Sun2000-60ktl-hv-d1-001

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