Huawei SUN2000-50KTL-ZHM3 User Manual
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Huawei SUN2000-50KTL-ZHM3 User Manual

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SUN2000-(50KTL-ZHM3, 50KTL-M3)
User Manual
Issue
05
Date
2023-02-28
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei SUN2000-50KTL-ZHM3

  • Page 1 SUN2000-(50KTL-ZHM3, 50KTL-M3) User Manual Issue Date 2023-02-28 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS"...

  • Page 3: About This Document

    About This Document About This Document Overview This document describes the SUN2000-50KTL-ZHM3 and SUN2000-50KTL-M3 (also referred to as SUN2000) in terms of their 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 Added the SUN2000-50KTL-M3 model. Updated 2.1 Product Introduction. Updated 10 Technical Specifications. Updated A Grid Codes. Added G Rapid Shutdown. Added H NS Protection. Issue 02 (2022-08-12) Updated 5.2 Preparing Cables. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 5 About This Document Updated 5.4 Connecting the AC Output Power Cable. Updated 5.5 Installing the DC Input Power Cable. Updated 10 Technical Specifications. Issue 01 (2022-05-20) This issue is the first official release. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 6: Table Of Contents

    5.3 Connecting the PE Cable..............................36 5.4 Connecting the AC Output Power Cable........................38 5.5 Installing the DC Input Power Cable..........................44 5.6 (Optional) Installing the Smart Dongle........................47 5.7 Connecting the Signal Cable............................. 49 Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 7 D Resetting Password......................105 E Setting Dry Contact Scheduling Parameters..............106 F AFCI............................107 G Rapid Shutdown........................109 H NS Protection........................110 I Smart I-V Curve Diagnosis....................111 J Locating Insulation Resistance Faults................112 Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 8 SUN2000-(50KTL-ZHM3, 50KTL-M3) User Manual Contents K Contact Information......................116 L Acronyms and Abbreviations....................118 Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 9: Safety Information

    The equipment is damaged due to force majeure such as earthquakes, floods, volcanic eruptions, debris flows, lightning strikes, fires, wars, armed conflicts, typhoons, hurricanes, tornadoes, and other extreme weather conditions. ● The equipment is operated beyond the conditions specified in this document. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 10: Personal Safety

    D ANGER During operations, use dedicated insulated tools to prevent electric shocks or short circuits. The dielectric withstanding voltage level must comply with local laws, regulations, standards, and specifications. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 11 Professionals: personnel who are familiar with the working principles and structure of the equipment, trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation, operation, maintenance Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 12: Electrical Safety

    WARNING For the equipment that needs to be grounded, install the ground cable first when installing the equipment and remove the ground cable last when removing the equipment. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 13 ● Only qualified professionals can replace a damaged cable. ● Do not scrawl, damage, or block any labels or nameplates on the equipment. Promptly replace labels that have worn out. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 14: Environment Requirements

    1.3 Environment Requirements D ANGER Do not expose the equipment to flammable or explosive gas or smoke. Do not perform any operation on the equipment in such environments. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 15 Do not install the equipment in an area conducive for the growth of microorganisms such as fungus or mildew. ● Do not install the equipment in an area with strong vibration, noise, or electromagnetic interference. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Mechanical Safety

    General Requirements ● Repaint any paint scratches caused during equipment transportation or installation in a timely manner. Equipment with scratches cannot be exposed for an extended period of time. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 17 When moving the equipment, assign dedicated personnel to take care of it. ● Choose sea or roads in good conditions for transportation as transportation by railway or air is not supported. Avoid tilt or jolt during transportation. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 18 If a single ladder is used, do not climb higher than the fourth rung of the ladder from the top. ● If you use a single ladder to climb up to a platform, ensure that the ladder is at least 1 m higher than the platform. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 19 Drilling Holes ● Obtain consent from the customer and contractor before drilling holes. ● Wear protective equipment such as safety goggles and protective gloves when drilling holes. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 20 To avoid short circuits or other risks, do not drill holes into buried pipes or cables. ● When drilling holes, protect the equipment from shavings. After drilling, clean up any shavings. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 21: Overview

    SUN2000-50KTL-M3 Figure 2-1 Model description Table 2-1 Model description Meaning Value Series name SUN2000: grid-tied solar inverter Power class 50K: rated power of 50 kW Topology TL: transformerless Region ZH: China Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 22 (3) AC power distribution unit (4) Isolation transformer (5) Power grid Supported Power Grid Types The SUN2000 supports TN-S, TN-C, TN-C-S, TT, and IT power grids. Figure 2-3 Power grid types Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 23: Appearance

    (5) Hole for the DC switch locking (6) DC switch (DC SWITCH) screw (7) Smart Dongle port (4G/WLAN-FE) (8) DC input terminals (PV1–PV8) (9) Ventilation valve (10) AC output port (11) Ground point (12) Fan Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 24: Label Description

    SUN2000, ensure that the SUN2000 is properly grounded. Refer to Reminds operators to documentation refer to the documents delivered with the SUN2000. Grounding label Indicates the position for connecting the PE cable. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 25 Indicator Indicates the SUN2000 operating information. SUN2000 serial Indicates the serial number number. SUN2000 WiFi login Scan the QR code to QR code connect to the Huawei SUN2000 WiFi network. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 26: Working Principles

    Surge protection is supported on both the DC and AC sides. Figure 2-5 Schematic diagram 2.4.2 Working Modes The SUN2000 can work in Standby, Operating, or Shutdown mode. Figure 2-6 Working modes Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 27 ● 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 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 28: Sun2000 Storage

    If any rodent bites are found on the packing materials, replace the packing materials immediately. ● If the SUN2000 has been stored for more than two years, it must be checked and tested by professionals before being put into use. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 29: Installation

    After unpacking the inverter, check that the contents are intact and complete. If any damage is found or any component is missing, contact your supplier. NO TE For details about the number of contents, see the Packing List in the packing case. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 30: Tool Preparation

    Hammer drill Drill bit Rubber mallet Open-end wrench Utility knife Marker H4TW0001 (Amphenol) Cable cutter Wire stripper Diagonal pliers Crimping tool Hydraulic pliers Heat gun H4TC0003 (Amphenol) Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 31: Selecting An Installation Position

    If inverters are installed in a place with abundant vegetation, in addition to routine weeding, harden the ground underneath the inverters using cement or gravel (recommended area: 3 m x 2.5 m). Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 32 Install the SUN2000 vertically or at a maximum back tilt of 15 degrees to facilitate heat dissipation. ● Do not install the SUN2000 with a front tilt, excessive back tilt, side tilt, horizontally, or upside down. Figure 4-1 Installation angle Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 33 When installing multiple SUN2000s, install them in horizontal mode if ample space is available and install them in triangle mode if no ample space is available. Stacked installation is not recommended. Figure 4-3 Horizontal installation (recommended) Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 34 SUN2000-(50KTL-ZHM3, 50KTL-M3) User Manual 4 Installation Figure 4-4 Two-layer triangle installation (recommended) Figure 4-5 Three-layer triangle installation (not recommended) Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 35: Moving The Sun2000

    ● After placing the equipment in the installation position, unpack it with care to prevent scratches. Keep the equipment stable during unpacking. Procedure Step 1 Lift the SUN2000 from the packing case and move it to the specified installation position. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Installing The Mounting Bracket

    ----End 4.5 Installing the Mounting Bracket Installation Precautions Before installing the mounting bracket, remove the security Torx wrench and set it aside. Figure 4-9 Position for binding the security Torx wrench Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 37: Support-Mounted Installation

    SUN2000. Figure 4-10 Mounting bracket dimensions 4.5.1 Support-mounted Installation Procedure Step 1 Secure the mounting bracket. Figure 4-11 Securing the mounting bracket Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 38: Wall-Mounted Installation

    ● Level the front 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 concrete wall. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 39: Installing A Sun2000

    ● For models used in Australia, install the DC switch locking screw according to local standards. The DC switch locking screw is delivered with the SUN2000. Figure 4-14 Installing the locking screw for the DC switch Step 2 Install the SUN2000 onto the mounting bracket. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 40 Figure 4-15 Installing a SUN2000 Step 3 Tighten the nuts on both sides of the SUN2000. Figure 4-16 Tightening the nut NO TICE Secure the screws on the sides before connecting cables. ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 41: Electrical Connections

    ● Wear proper PPE at all time when terminating cables. ● To prevent poor cable connection due to overstress, it is recommended that the cables be bent and reserved, and then connected to the appropriate ports. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 42: Preparing Cables

    Table 5-1 Components Component Description Source PV string ● A PV string consists of PV Prepared by users modules connected in series. ● The SUN2000 supports the input from eight PV strings. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 43 MERC Smart PV Optimizer User Manual. NO TICE The cable specifications must comply with local standards. Device damage caused by using cables with incorrect specifications will not be covered by the warranty. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 44: Connecting The Pe Cable

    ● Ensure that the PE cable is securely connected. Otherwise, electric shocks may occur. ● Do not connect the neutral wire to the enclosure as a PE cable. Otherwise, electric shocks may occur. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 45 ● When using a heat gun, protect devices from being scorched. Figure 5-2 Crimping an OT terminal (1) Cable (2) Core (3) Heat shrink tubing (4) OT terminal (5) Crimping tool (6) Heat gun Step 2 Connect the PE cable. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 46: Connecting The Ac Output Power Cable

    Company's recommendations, the switch may fail to turn off in a timely manner in case of exceptions, causing serious faults. CA UTION Each inverter must be equipped with an AC output switch. Multiple inverters cannot connect to the same AC output switch. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 47 ● If copper-aluminum transition spacers are used, pay attention to the front and rear sides. Ensure that the aluminum sides of spacers are in contact with aluminum wiring terminals, and copper sides of spacers are in contact with the AC terminal block. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 48 Figure 5-4 Requirements for the OT/DT terminal Procedure Step 1 Remove the AC terminal box and install partition boards. Figure 5-5 Removing the AC terminal box Step 2 Connect the AC output power cable. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 49 ● The cable colors in figures are for reference only. Select appropriate cables according to the local standards. Figure 5-6 Stripping the AC power cable (using a five-core cable as an example) Figure 5-7 Five-core cable (L1, L2, L3, N, and PE) Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 50 SUN2000-(50KTL-ZHM3, 50KTL-M3) User Manual 5 Electrical Connections Figure 5-8 Four-core cable (L1, L2, L3, and PE) Figure 5-9 Four-core cable (L1, L2, L3, and N) Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 51 SUN2000-(50KTL-ZHM3, 50KTL-M3) User Manual 5 Electrical Connections Figure 5-10 Three-core cable (L1, L2, and L3) Figure 5-11 Wiring requirements ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 52: Installing The Dc Input Power Cable

    PV strings may be short-circuited to ground if the power cable is not properly installed or routed. In this case, an AC or DC short circuit may occur and damage the SUN2000. The caused device damage is not covered under any warranty. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 53 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. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 54 During DC input power cabling, leave at least 50 mm of slack. The axial tension on PV connectors must not exceed 80 N. Radial stress or torque must not be generated on PV connectors. ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 55: Optional) Installing The Smart Dongle

    ● When removing the SIM card, push it inwards to eject it. ● When reinstalling the cover of the Smart Dongle, ensure that the buckle springs back in place. Figure 5-14 Installing a 4G Smart Dongle (SDongleA-03) Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 56 Figure 5-16 Installing a WLAN-FE Smart Dongle (WLAN communication) ● WLAN-FE Smart Dongle (FE Communication) Figure 5-17 Installing a WLAN-FE Smart Dongle (FE communication) NO TICE Install the network cable before installing the Smart Dongle on the solar inverter. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 57: Connecting The Signal Cable

    The quick guide is delivered with the Smart Dongle. 5.7 Connecting the Signal Cable COM Port Pin Definitions NO TICE When laying out a signal cable, separate it from power cables to avoid strong signal interference. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 58 485B2 RS485 DIN2 power meter at differential the grid-tied signal – point. DIN3 DIN4 DIN5 Rapid Supports shutdown/NS functions such protection/ as rapid OVGR shutdown, NS protection, and OVGR. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 59: Communication Modes

    SUN2000 to improve the waterproof performance of the SUN2000. Figure 5-19 Securing the signal cable connector 5.7.1 Communication Modes RS485 Communication ● Smart Dongle networking Figure 5-20 Smart Dongle networking Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 60 ● The built-in MBUS module in the SUN2000 does not need to be connected with cables. ● In utility-scale scenarios, an isolation transformer must be connected between inverters and loads. ● Commercial and industrial scenarios are supported only in China. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 61: Optional) Connecting The Rs485 Communications Cable To The Sun2000

    Figure 5-23 MBUS communication (commercial and industrial scenarios in China) 5.7.2 (Optional) Connecting the RS485 Communications Cable to the SUN2000 Procedure Step 1 Connect the signal cable to the signal cable connector. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 62: Optional) Connecting The Rs485 Communications Cable To The Power Meter

    Figure 5-25 Securing the signal cable connector ----End 5.7.3 (Optional) Connecting the RS485 Communications Cable to the Power Meter Procedure Step 1 Connect the signal cable to the signal cable connector. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 63: Optional) Connecting The Power Grid Scheduling Signal Cable

    Step 2 Connect the signal cable connector to the COM port. Figure 5-27 Securing the signal cable connector ----End 5.7.4 (Optional) Connecting the Power Grid Scheduling Signal Cable Procedure Step 1 Connect the signal cable to the signal cable connector. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 64: Optional) Connecting The Rapid Shutdown Signal Cable

    Step 2 Connect the signal cable connector to the COM port. Figure 5-29 Securing the signal cable connector ----End 5.7.5 (Optional) Connecting the Rapid Shutdown Signal Cable Procedure Step 1 Connect the signal cable to the signal cable connector. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 65 SUN2000-(50KTL-ZHM3, 50KTL-M3) User Manual 5 Electrical Connections Figure 5-30 Connecting the cable ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 66: Commissioning

    SUN2000 are OFF. Cable connection The AC output power cable, and DC input power cables are connected correctly and securely. Unused terminals and ports Unused terminals and ports are locked by watertight caps. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 67: System Power-On

    Figure 6-1 Removing the locking screw beside the DC switch Step 3 Turn on the DC switch at the bottom of the SUN2000. Step 4 Observe the LED indicators to check the operating status of the SUN2000. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 68 Blinking green slowly (on for 1s and off A mobile phone is for 1s) connected. No communication Note: If LED1, LED2, and LED3 are steady red, the SUN2000 is faulty and needs to be replaced. ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 69: Man-Machine Interaction

    SUN2000 app can be used for commissioning. ● Access the Huawei app store (http://appstore.huawei.com), search for FusionSolar or SUN2000, and download the app installation package. You can also scan the QR codes below to download the apps.

  • Page 70: Scenario In Which Sun2000S Are Connected To The Fusionsolar Smart Pv Management System

    Figure 7-1 Creating the first installer account NO TICE To create multiple installer accounts for a company, log in to the FusionSolar app and tap Add User to create an installer account. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 71: Creating A Pv Plant And A User

    FusionSolar App Quick ● For details about how to use the site deployment wizard, see Guide 7.1.3 SmartLogger Networking Scenario PV Plants Connecting to Huawei Hosting Cloud Quick Guide For details, see (Inverters + SmartLogger3000), PV Plants Connecting to SmartPVMS Quick Issue 05 (2023-02-28) Copyright ©...

  • Page 72: Scenario In Which Sun2000S Are Connected To Other Management Systems

    Limits or reduces the output power of the PV power system to ensure that the output power is within the specified range. Procedure Step 1 On the home screen, choose Power adjustment > Grid-tied point control. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 73 Dongle does not detect any power meter data within the preset time, the Dongle delivers the preset value of Active power output limit for fail-safe for protection. Power raising Specifies the step for grid-tied power adjustment. threshold Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 74 Dongle does not detect any power meter data within the preset time, the Dongle delivers the preset value of Active power output limit for fail-safe for protection. Power raising Specifies the step for grid-tied power adjustment. threshold Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 75 Dongle does not detect any power meter data within the preset time, the Dongle delivers the preset value of Active power output limit for fail-safe for protection. Power raising Specifies the step for grid-tied power adjustment. threshold Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 76 (when Active power control is set to Grid connection with limited power). Note 1: This parameter is supported only for the AS4777 grid code. ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 77: Apparent Power Control On The Inverter Output Side

    NO TE The lower threshold for the maximum apparent power is the maximum active power. To lower the maximum apparent power, lower the maximum active power first. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 78: Maintenance

    Step 2 Turn off the AC switch between the SUN2000 and the power grid. Step 3 Turn off the DC switch at the bottom of the SUN2000. Step 4 (Optional) Install the locking screw for the DC switch. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 79: Routine Maintenance

    ● Check that cables are intact, and initial that in particular, the parts touching commissioning. the metallic surface are not From then on, the scratched. interval can be 6 to 12 months. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 80: 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 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 81 Major The PV string power cables Check whether the PV string fault arc or are in poor contact. cables arc or are in poor contact. Cause ID 1–8: PV strings 1– Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 82 PV modules in the PV string. 2. Check whether the open- circuit voltage of the PV string is abnormal. 3. Check whether the PV string is shaded. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 83 SmartLogger, or NMS with the consent of the local power operator. 3. If the alarm persists for a long time, check the AC circuit breaker and AC output power cable. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 84 4. If the AC output power cable is correctly connected, yet the alarm persists and affects the energy yield of the PV plant, contact the local power operator. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 85 If not, contact the local power operator. If yes, modify the grid underfrequency protection threshold through the app, SmartLogger, or NMS with the consent of the local power operator. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 86 2. If the alarm persists or lasts a long time, check whether the impedance between the PV string and ground is too low. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 87 3. If you have confirmed that the impedance is lower than the specified protection threshold in a cloudy or rainy environment, log in to the app, SmartLogger, or NMS and set Insulation resistance protection threshold. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 88 Cause ID = 1 1. Apply for a new license. expired ● The privilege license has 2. Load a new certificate. entered the grace period. ● The privilege feature is about to expire. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 89 3. Check whether the peak grid voltage exceeds the upper threshold. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 90 2. Reinstall the fan, turn on the DC switch, and wait for the inverter to start. If the alarm persists after 15 minutes, replace the external fan. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 91: Replacing A Fan

    NO TE Contact your dealer or Huawei technical support if all troubleshooting procedures listed above are completed and the fault still exists. 8.4 Replacing a Fan CA UTION ●...
  • Page 92 When binding the cable, you are advised to reserve 80 mm at one end of the terminal, fold the rest of the cable and bind it in the middle using a cable tie, and then bind the cable to the cable bridge. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 93 SUN2000-(50KTL-ZHM3, 50KTL-M3) User Manual 8 Maintenance Figure 8-4 Binding a cable ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 94: 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 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 95: Technical Specifications

    Maximum input 20 A (one PV string)/30 A (one MPPT) current per string Maximum short- 40 A circuit current per MPPT Minimum startup 200 V voltage MPP voltage 200–1000 V range Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 96 Rated output 76.0 A/380 V current 72.2 A/400 V 60.1 A/480 V Maximum output 84.0 A/380 V current 79.8 A/400 V 66.5 A/480 V Output voltage 50 Hz/60 Hz frequency Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 97 DC surge Type II protection AC surge Type II protection Insulation Supported resistance detection Residual current Supported monitoring unit (RCMU) Display and Communication Item SUN2000-50KTL-ZHM3 SUN2000-50KTL-M3 Display LED indicators; WLAN+app Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 98 Net weight 48 kg Operating –25°C to +60°C temperature Relative humidity 0%–100% Cooling mode Smart air cooling Maximum 4000 m operating altitude Storage –40°C to +70°C temperature IP rating IP66 Topology Transformerless Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 99 ● Supports LTE-TDD: B7/B20/B28/B38/B40/B41. ● Supports GSM/GPRS/EDGE: 900 MHz/ 1800 MHz. SDongleB-06-AU (WiFi): 2400–2483.5 SDongleB-06-AU (4G): ● LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B28 ● LTE-TDD: B40 ● WCDMA: B1/B2/B5/B8 ● GSM: 850 MHz/900 MHz/1800 MHz/ 1900 MHz Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 100 B1/B3/B5/B8. ● Supports LTE-TDD (with receive diversity): B7/B20/B28/B38/B40/B41. ● Supports GSM: 900 MHz/1800 MHz. ● Supports digital audio. SDongleB-06-AU (WiFi): WLAN 802.11b/g/n SDongleB-06-AU (4G): ● Supports LTE-FDD (with receive diversity): B1/B2/B3/B4/B5/B7/B8/B28/B66 Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 101 10 Technical Specifications Specifications Inverter Built- WLAN-FE Smart 4G Smart Dongle in WiFi Dongle ● Supports LTE-TDD (with receive diversity): B40 ● Supports WCDMA: B1/B2/B4/B5/B8 ● Supports GSM: 850/900/1800/1900 ● Supports digital audio. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 102 ● Supports GMSK and 8-PSK modulation and coding schemes. ● Downlink coding format: MCS 1–9 ● Uplink coding format: MCS 1–9 ● Maximum downlink rate: 236.8 kbit/s; maximum uplink rate: 236.8 kbit/s Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 103 ● Class E2 (26 dBm±3 dB), DCS1800 8- ● Class 3 (24 dBm+1/–3 dB), WCDMA frequency band ● Class 3 (23 dBm±2 dB), LTE-FDD frequency band ● Class 3 (23 dBm±2 dB), LTE-TDD frequency band Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 104: A Grid Codes

    VDE 0126-1-1-GR(A) Greece mainland Supported power grid VDE 0126-1-1-GR(B) Greece island power Supported grid VDE-AR-N4110 Germany medium- Supported voltage power grid (230 V) BDEW-MV Germany medium- Supported voltage power grid Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 105 France island power Supported grid TAI-PEA-MV480 Thailand medium- Supported voltage grid-tied (PEA) TAI-MEA-MV480 Thailand medium- Supported voltage grid-tied (MEA) EN50438-DK-MV480 Denmark medium- Supported voltage grid-tied EN50438-TR-MV480 Turkey medium- Supported voltage power grid Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 106 PO12.3 Spain low-voltage Supported power grid CEI0-21-MV480 Italy medium-voltage Supported power grid EN50549-LV Ireland power grid Supported EN50549-MV480 Ireland medium- Supported voltage power grid Jordan-Transmission Jordan low-voltage Supported power grid Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 107 Singapore low-voltage Supported power grid SINGAPORE-MV480 Singapore medium- Supported voltage power grid C10/11-MV400 Belgium medium- Supported voltage power grid EN50549-PL Poland power grid Supported EN50549-MV400 Ireland new standard Supported power grid Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 108 Supported LV127 power grid Mexico-LV220 Mexico low-voltage Supported power grid Philippines-LV220-50Hz Philippines low-voltage Supported power grid (50 Hz) Philippines-LV220-60Hz Philippines low-voltage Supported power grid (60 Hz) Pakistan Pakistan power grid Supported Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 109: B Device Commissioning

    SUN2000-(50KTL-ZHM3, 50KTL-M3) User Manual B Device Commissioning Device Commissioning Step 1 Access Device commissioning screen. Figure B-1 Method 1: before login (not connected to the Internet) Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 110 If the access fails in WEP mode, log in to the router and change the encryption mode of the router to WPA2 or WPA/WPA2. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 111 ● When you access the Device commissioning screen of the SUN2000 for the first time, you need to manually set the login password because the SUN2000 does not have an initial login password. ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 112: C Built-In Pid Recovery

    NO TE ● Set PID running mode to Repair (disabled by default). ● Set Nighttime off-grid repair to (this parameter is displayed when Built-in PID running mode is set to Repair). ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 113: D Resetting Password

    On the login page, set a new login password and log in to the app. ----End NO TICE You are advised to reset the password in the morning or at night when the solar irradiance is low. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 114: E Setting Dry Contact Scheduling Parameters

    Setting Dry Contact Scheduling Parameters Procedure Step 1 On the home screen, choose Settings > Power adjustment and set Dry contact scheduling to Figure E-1 Setting dry contact scheduling parameters ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 115: F Afci

    Settings > Feature parameters, and disable AFCI. NO TE The AFCI function works only with Huawei optimizers or ordinary PV modules when the SUN2000 is connected to the grid, but does not support third-party optimizers or intelligent PV modules.
  • Page 116 Switch to an owner account with plant management rights. On the Home page, click the plant name to go to the plant page, and click OK as prompted to clear the alarm. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 117: G Rapid Shutdown

    Settings > Feature parameters > Dry contact function, and set Dry contact function to DI rapid shutdown. ● Method 4: If AFCI is enabled, the inverter automatically detects arc faults, triggering a rapid shutdown. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 118: H Ns Protection

    Settings > Feature parameters > Dry contact function, and set Dry contact function to NS protection. Figure H-1 Connecting cascaded inverters to the NS protection switch Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 119: I Smart I-V Curve Diagnosis

    SUN2000-(50KTL-ZHM3, 50KTL-M3) User Manual I Smart I-V Curve Diagnosis Smart I-V Curve Diagnosis For details, see SmartPVMS Smart I-V Curve Diagnosis User Manual. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 120: J Locating Insulation Resistance Faults

    Low insulation resistance alarm on the FusionSolar app. Log in to the FusionSolar app, choose Alarm > Active alarm, select Low insulation resistance to enter the Alarm details screen. Figure J-1 Alarm details Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 121 Inverter ON/OFF on the home screen, and send a startup command. Step 3 Choose Alarm on the home screen, enter the Active alarm screen, and check whether a Low insulation resistance alarm is reported. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 122 PV modules and optimizers adjacent to the possible fault location. Step 7 Determine the position of the ground insulation fault: ● Disconnect the possible faulty PV module from the optimizer. Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 123 PV strings one by one. Then, go to Step Step 8 Set DC SWITCH to ON. If the inverter status is Shutdown: Command, choose Maintenance > Inverter ON/OFF, and send a startup command. ----End Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 124 Asia- Australia eu_inverter_support@huaw 1800046639 Pacific ei.com Turkey eu_inverter_support@huaw ei.com Malaysia apsupport@huawei.com 0080021686868 /1800220036 Thailand (+66) 26542662 (local rate call) 1800290055 (free in Thailand) China solarservice@huawei.com 400-822-9999 Other apsupport@huawei.com 0060-3-21686868 countries Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 125 Saudi Arabia 8001161177 Pakistan 0092512800019 Morocco 0800009900 Other 0020235353900 countries NO TE EU Representative Information: Huawei Technologies Hungary Kft. Add.: HU-1133 Budapest, Váci út 116-118., 1. Building, 6. floor. Email: hungary.reception@huawei.com Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 126 L Acronyms and Abbreviations Acronyms and Abbreviations AFCI arc-fault circuit interrupter light emitting diode MBUS monitoring bus maximum power point MPPT maximum power point tracking protective earthing potential induced degradation photovoltaic residual current device Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd.

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Sun2000-50ktl-m3

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