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Huawei SUN 2000 Series User Manual
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Huawei SUN 2000 Series User Manual

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SUN2000-4.95KTL-JPL0
User Manual
Issue
03
Date
2020-06-03
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei SUN 2000 Series

  • Page 1 SUN2000-4.95KTL-JPL0 User Manual Issue Date 2020-06-03 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. Calls attention to important information, best practices and tips. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 4 Updated C Restoring the Factory Defaults of a Solar Inverter. Issue 02 (2020-02-06) Updated 5.5 Connecting a Signal Cable. Issue 01 (2019-11-01) This issue is used for first office application (FOA). Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 5: Table Of Contents

    5.2 Connecting a PE Cable ............................... 30 5.3 Connecting an AC Output Power Cable ........................32 5.4 Installing DC Input Power Cables ..........................35 5.5 Connecting a Signal Cable ............................39 6 System Commissioning ......................42 Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 6 8.3 Disposing of a Solar Inverter ............................52 A Technical Specifications ......................53 B Grid Code ............................. 56 C Restoring the Factory Defaults of a Solar Inverter .............. 57 D Acronyms and Abbreviations....................59 Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 7: 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 8: 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 9: Electrical Safety

    Before making electrical connections, switch off the disconnector on the upstream device to cut off the power supply if people may contact energized components.  Before connecting a power cable, check that the label on the power cable is correct. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 10: 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 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 11: 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 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 12: 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 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 13: Product Overview

    L0: single-phase inverter Networking The solar inverter applies to residential rooftop grid-tied systems. Typically, a grid-tied system consists of the PV string, grid-tied solar inverter, AC combiner box, and management system. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 14 (A) PV string (B) SUN2000 (C) Combiner box (D) Power grid (E) Internet (F) Management system Supported Power Grid The solar inverter supports the single-phase three-wire power grid. Figure 2-3 Supported power grid Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 15: Appearance

    LED2 The solar inverter operates in Steady green Steady green grid-tied mode. Blinking green The DC is on and the AC is slowly (on for 1s off. and then off for Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Label Description

    Only qualified and trained electrical technicians are allowed to perform operations on the solar inverter. Refer to documentation Reminds operators to refer to the documents shipped with the solar inverter. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 17 (MAC) address address. The labels are for reference only. Nameplate Figure 2-5 Nameplate (1) Trademark and product model (2) Key technical specifications (3) Compliance symbols (4) Company name and country of origin Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 18: Working Principle

    MPPT routes inside the solar inverter to track the maximum power point of the PV strings. The DC power is then converted into single-phase AC power through an inverter circuit. Surge protection is supported on both the DC and AC sides. Figure 2-6 Schematic diagram Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 19 The solar inverter enters shutdown mode after detecting a fault or a shutdown command, and enters standby mode after detecting that the PV string output power is not suitable for connecting to the power grid to produce power. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 20 In standby or operating mode, the solar inverter enters shutdown mode after detecting a fault or shutdown command.  In shutdown mode, the solar inverter enters standby mode after detecting a startup command or detecting that the fault has been rectified. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 21: Storage

     If the solar inverter has been stored for a long time, inspections and tests should be conducted by qualified personnel before it is put into use. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 22: Installation

    For details about the number of accessories delivered with the solar inverter, see the Packing List in the packing case. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 23: Tools And Instruments

    Rubber mallet Utility knife Cable cutter Crimping tool (model: Open-end wrench (model: Cable tie H4TC0003; manufacturer: H4TW0001; manufacturer: Amphenol) Amphenol) Vacuum cleaner Multimeter (DC voltage Marker measurement range ≥ 600 V Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 24: Determining The Installation Position

    Do not install the solar inverter at a place within children's reach.  The solar inverter will be corroded in salt areas, and the salt corrosion may cause fire. Before installing the solar inverter outdoors in salt areas, consult Huawei. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 25 Install the solar inverter vertically or at a maximum back tilt of 15 degrees to facilitate heat dissipation.  Do not install the solar inverter at forward tilted, excessive back tilted, side tilted, horizontal, or upside down positions. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 26 When installing multiple solar inverters, install them in horizontal mode if sufficient space is available and install them in triangle mode if no sufficient space is available. Stacked installation is not recommended. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 27 SUN2000-4.95KTL-JPL0 User Manual 4 Installation Figure 4-3 Horizontal installation mode (recommended) Figure 4-4 Horizontal installation mode (support-mounted, not shaded or exposed to direct sunlight) Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 28 SUN2000-4.95KTL-JPL0 User Manual 4 Installation Figure 4-5 Triangle installation mode (recommended) Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 29: Installing The Mounting Bracket

    SUN2000-4.95KTL-JPL0 User Manual 4 Installation Figure 4-6 Stacked installation mode (not recommended) 4.4 Installing the Mounting Bracket Figure 4-7 Mounting hole dimensions Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 30: 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 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 31: Support-Mounted Installation

    Procedure Step 1 Determine the positions for drilling holes using the mounting bracket. Level the positions of mounting holes using a level, and mark the positions with a marker. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 32 Step 2 Drill holes using a hammer drill. You are advised to apply anti-rust paint on the hole positions for protection. Figure 4-11 Drilling holes Step 3 Secure the mounting bracket. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 33: Installing A Solar Inverter

    When you need to temporally place the solar inverter on the ground, use foam, paper, or other protection material to prevent damage to its enclosure. Figure 4-13 Moving a solar inverter Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 34 Step 4 (Optional) Install an anti-theft lock. Prepare an anti-theft lock suitable for the lock hole diameter (Ф8 mm).   Keep the key to the anti-theft lock. Figure 4-14 Installing a solar inverter ----End Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 35: Electrical Connections

    Operation personnel must wear proper PPE all the time when connecting cables. The cable colors shown in cable connection schematic diagrams are for reference only. Select cables according to local cable specifications. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Preparing Cables

    Connect the PE points of all solar inverters in the same array to ensure equipotential connections to PE cables. Low-voltage solar inverters need to be grounded in type C mode. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 37 Figure 5-2 Crimping an OT terminal (A) Core (B) Insulation layer (C) Heat shrink tubing (D) Hydraulic pliers (E) Heat gun Step 2 Connect the PE cable. Ensure that the PE cable is connected securely. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 38: Connecting An Ac Output Power Cable

    Do not connect loads between the solar inverter and the AC switch. Procedure Step 1 Connect the AC output power cable to the AC connector. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 39 The cable colors shown in figures are for reference only. Select an appropriate cable according to the local standards.  For the core installation method and the length for cable stripping, see the instructions on the side of the plug insert. Figure 5-5 Length for cable stripping Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 40 Before removing the AC connector, ensure that the DC switch at the bottom of the solar inverter and all the switches connecting to it are set to OFF position. To remove the AC connector from the solar inverter, perform the operations in reverse order. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 41: Installing Dc Input Power Cables

    PV string current drops below 0.5 A. Then, turn off the DC switch, remove the positive and negative connectors, and rectify the connection of the DC input power cables. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 42 Use the positive and negative metal terminals and DC connectors supplied with the solar inverter. Using incompatible positive and negative metal terminals and DC connectors may result in serious consequences. The caused device damage is not covered under any warranty or service agreement. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 43 Step 2 Insert the positive and negative connectors into corresponding DC input terminals on the solar inverter. After the positive and negative connectors snap into place, pull the DC input power cables back to ensure that they are connected securely. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 44 To remove the positive and negative connectors from the solar inverter, insert an open-end wrench into the notch and press the wrench with an appropriate force. Figure 5-12 Removing a DC connector Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 45: Connecting A Signal Cable

    RS485B, RS485 differential Cascades solar inverters for signal– RS485 communication. 485A2 RS485A, RS485 differential signal+ Connects to the shielding Shielding ground layer of cables. Shielding ground Connects to the shielding layer of cables. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 46 Block unused cable holes using plugs and tighten cable glands.  If two signal cables are required, ensure that they have the same outer diameter. Figure 5-15 Blocking a cable hole (4–8 mm four-hole rubber plug) Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 47 Block unused cable holes using plugs and tighten cable glands.  If two signal cables are required, ensure that they have the same outer diameter. Figure 5-17 Blocking a cable hole (4–8 mm two-hole rubber plug) ----End Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 48: System Commissioning

    Unused terminals and ports are locked by Unused terminals and ports watertight caps. Installation environment The installation space is proper, and the installation environment is clean and tidy. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 49: Powering On The System

    After the solar inverter powers off, the remaining electricity and heat may still cause electric shocks and body burns. Therefore, put on protective gloves and begin servicing the solar inverter five minutes after the power-off. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 50 Step 3 Turn off the DC switch at the bottom of the solar inverter. Step 4 Turn off the DC switch between the PV string and the solar inverter if there is any. ----End Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 51: System Maintenance

    Grounding Check that the ground terminal and ground Once every twelve reliability cable are securely connected. months Sealing Check that all terminals and ports are Once every twelve properly sealed. months Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 52: Troubleshooting

    2. Check whether the AC circuit is  The power grid experiences disconnected or the AC switch is an outage. off.  The AC circuit is disconnected or the AC switch is off. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 53 HVRT. the upper threshold and have obtained the consent of the local power operator, modify the overvoltage protection threshold. 3. Check whether the peak grid voltage exceeds the upper threshold. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 54 If no, contact the local power operator. If yes, log in to the SmartLogger, or NMS to modify the power grid overfrequency protection threshold with the consent of the local power operator. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 55 After the fault is t Overhigh solar inverter output current rectified, the solar inverter exceeds the specified upper automatically recovers. threshold. 2. If the alarm occurs frequently, contact your dealer or Huawei technical support. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 56 Cause ID = 1, 2 and 4 Failed or 2. If the upgrade fails for multiple The upgrade does not complete Version times, contact your dealer or normally. Mismatch Huawei technical support. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 57 3. Check whether the peak grid voltage exceeds the upper threshold. Contact your dealer if the fault persists after you complete the procedures listed above. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 58: Handling A Solar Inverter

    8.3 Disposing of a Solar Inverter If the solar inverter service life expires, dispose of it according to the local disposal rules for electrical equipment and electronic component waste. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 59: A Technical Specifications

    One input: 25 A; two inputs: 40 A short-circuit current Startup voltage 100–600 V range MPPT voltage 80–530 V range Full-load MPPT 175–530 V voltage range Rated input voltage 320 V Number of inputs Number of MPP trackers Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 60 Maximum total harmonic distortion (rated power) Protection Item SUN2000-4.95KTL-JPL0 Anti-islanding Supported protection Input reverse Supported connection protection Output short-circuit Supported protection Residual current Supported monitoring unit (RCMU) AC surge protection Supported Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 61 12.6 kg –40° C to +70° C Storage temperature Storage humidity 5%–95% RH –30° C to +60° C Operating temperature Operating humidity 0%–100% RH Operating altitude 0–4000 m (derated above 2000 m) Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 62: B Grid Code

    The grid codes are subject to change. The listed codes are for reference only. Table B-1 Grid codes Grid Code Description Grid Voltage Grid Frequency Japan Japan low-voltage 202 V 50 Hz (LV202-50Hz) grid Japan Japan low-voltage 202 V 60 Hz (LV202-60Hz) grid Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 63: C Restoring The Factory Defaults Of A Solar Inverter

    Adjustment to set the parameters. Fixed active power derated (W) Active power percentage derating Reactive power change gradient (%/s) RS485 The preset value is 9600 bps Baud rate communications (cannot be restored or changed). Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.
  • Page 64 Log in to the SmartLogger WebUI as Advanced User, Special User or admin and choose Maintenance > Device Mgmt. > Connect Device. Click Auto Assign Address to complete address assignment and adjustment. Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

  • Page 65: D Acronyms And Abbreviations

    SUN2000-4.95KTL-JPL0 User Manual D Acronyms and Abbreviations Acronyms and Abbreviations maximum power point MPPT maximum power point tracking photovoltaic RCMU residual current monitoring unit Issue 03 (2020-06-03) Copyright © Huawei Technologies Co., Ltd.

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