Huawei SUN2000-62.5KTL-NHM0 User Manual
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Huawei SUN2000-62.5KTL-NHM0 User Manual

Huawei SUN2000-62.5KTL-NHM0 User Manual

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SUN2000-(62.5KTL, 125KTL)-NHM0
User Manual
Issue
07
Date
2024-08-22
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei SUN2000-62.5KTL-NHM0

  • Page 1 SUN2000-(62.5KTL, 125KTL)-NHM0 User Manual Issue Date 2024-08-22 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 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 4: Change History

    Added descriptions about the SUN2000-125KTL-NHM0. Issue 03 (2023-07-30) Updated 4.5 Support-Mounted Installation. Updated 5.5 Connecting DC Power Cables. Issue 02 (2023-03-06) Updated 1 Safety Information. Updated Base-mounting. Updated 5.5 Connecting DC Power Cables. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 5 SUN2000-(62.5KTL, 125KTL)-NHM0 User Manual About This Document Added C Resetting Password. Updated FAQ. Issue 01 (2022-09-20) This issue is used for first office application (FOA). Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 6: Table Of Contents

    5.2 Preparing Cables................................... 36 5.3 Connecting the PE Cable..............................37 5.4 Opening Maintenance Compartment Doors....................... 38 5.4.1 Opening the DC Maintenance Compartment Door....................38 5.4.2 Opening the AC Maintenance Compartment Door....................40 Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 7 8.5 Replacing a Fan................................... 102 8.6 Replacing the Inverter...............................107 8.7 Disposing of the Inverter..............................107 9 Alarm Reference........................108 10 Technical Specifications....................109 A Crimping an OT or DT Terminal..................113 Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 8 User Manual Contents B Grid Codes..........................116 C Resetting Password......................117 D FAQ............................118 E Certificate Management and Maintenance..............119 F Contact Information......................120 G Digital Power Customer Service..................122 H Acronyms and Abbreviations...................123 Issue 07 (2024-08-22) 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 07 (2024-08-22) 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 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 11: General Requirements

    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 07 (2024-08-22) 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 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 13 If the equipment has multiple inputs, disconnect all the inputs before operating the equipment. ● Before maintaining a downstream electrical or power distribution device, turn off the output switch on the power supply equipment. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 14: Cabling Requirements

    For example, check that the current-carrying capacity meets requirements. ● When routing cables, reserve at least 30 mm clearance between the cables and heat-generating components or areas. This prevents deterioration or damage to the cable insulation layer. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 15: Environment Requirements

    Keep the installation and operating environments of the equipment within the allowed ranges. Otherwise, its performance and safety will be compromised. ● The operating temperature range provided in the equipment's technical specifications refers to the ambient temperatures in equipment's installation environment. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 16 When installing the equipment, ensure that the installation surface is solid enough to bear the weight of the equipment. ● After installing the equipment, remove the packing materials such as cartons, foam, plastics, and cable ties from the equipment area. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 17: Mechanical Safety

    If two persons or more move a heavy object together, ensure that the object is lifted and landed simultaneously and moved at a uniform pace under the supervision of one person. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 18: Using Ladders

    Ensure that the ladder is securely positioned and held firm. ● When climbing up the ladder, keep your body stable and your center of gravity between the side rails, and do not overreach to the sides. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 19 During hoisting, do not stand or walk under the crane or the hoisted objects. ● Do not drag steel ropes and hoisting tools or bump the hoisted objects against hard objects during hoisting. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 20: Drilling Holes

    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 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 21: Overview

    2.1 Model This document involves the following product models: ● SUN2000-62.5KTL-NHM0 ● SUN2000-125KTL-NHM0 NO TE The products look alike. The SUN2000-62.5KTL-NHM0 is used as an example. Model Number Figure 2-1 Model number Table 2-1 Model number description Meaning Description Product family...

  • Page 22: Model Identification

    The SUN2000 is a grid-tied solar inverter that converts the DC power generated by PV strings into AC power and feeds the power into the power grid. Features Intelligent and efficient Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 23: Earthing System

    Earthing System The SUN2000 supports the IT earthing system. Figure 2-4 Earthing system 2.3 Networking Application (A) PV string (B) DC combiner box (C) Inverter Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 24: Appearance

    Note [1]: The torx key is delivered with the device and is tied to the bracket on the top of the device. Remove the torx key from the bracket and keep it safe. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 25: Indicator Description

    A major alarm was generated on the device. Maintenance Blinking red fast A minor alarm was generated on the device. indication Blinking red slowly A warning was generated on the device. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 26 ● If alarms are generated during the local maintenance, the fault/maintenance indicator shows the local maintenance state first. After the WLAN module is removed, the indicator shows the alarm state. Dimensions Figure 2-7 Dimensions Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 27 Indicates the position for connecting the PE cable. Equipotential bonding Indicates the position for equipotential bonding. Fan operation warning Do not touch the fan when the device is running to prevent mechanical injury. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 28: Working Principle

    The inverted output is filtered to three-phase AC power, which is then isolated and boosted by a three-phase transformer and fed into the power grid. Figure 2-8 Circuit diagram 2.5.2 Working Modes The SUN2000 has three working modes: standby, operating, and shutdown. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 29 ● 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 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 30: Storage Requirements

    Do not store devices for more than two years. If devices have been stored for two years or longer, they must be checked and tested by professionals before being put into use. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 31: Installation

    Install the inverter in a well-ventilated environment to ensure good heat dissipation. The inverter provides self-protection in high-temperature environments. If the inverter is installed in a poorly ventilated environment, its energy yield may decrease as the ambient temperature increases. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 32 ● The device can be installed on a support. The support needs to be prepared by the customer. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 33: Installation Clearance Requirements

    Figure 4-2 Clearance NO TE For ease of installation, cable connection, and maintenance, reserve 600–730 mm clearance underneath. For further questions regarding the clearance, consult local technical support engineers. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 34: Preparing Tools

    Before installation, the following tools need to be prepared. Installation Tools Hammer drill Drill bit (Ф14 mm Insulated torque Phillips insulated and Ф16 mm) socket wrench torque screwdriver (including an extension bar ≥ 80 Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 35 Cable tie Marker Steel measuring Level tape Scissors Heat shrink tubing Heat gun Digital multimeter DC voltage measurement range ≥ 1500 V DC AC voltage measurement range ≥ 800 V AC Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Personal Protective Equipment (Ppe)

    If any damage is found or the device model is not what you requested, do not unpack the product and contact your vendor as soon as possible. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 37: Unpacking The Device

    ● Secure the lifting handles (with the steel washers of the lifting handles closely fitted to the device). ● If the stud of a lifting handle is bent, replace the lifting handle in time. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 38 Figure 4-4 Holes for lifting handles (1) Lifting handle screw hole (2) Mounting bracket screw holes Procedure Take the inverter out of the packing case and move it to the specified position. Figure 4-5 Manual handling Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 39: Hoisting

    Take the device out of the packing case, run a sling (strong enough to bear the weight of the device) through the two lifting eyes, and hoist the device to the installation position. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 40: Support-Mounted Installation

    The mounting bracket of the inverter has four groups of tapped holes, each group containing four tapped holes. Mark any hole in each group based on site requirements and mark four holes in total. The two round holes are recommended. Figure 4-8 Hole dimensions Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 41 Step 3 Mount the device to the mounting bracket. If the device is moved manually, adjust the positions of lifting handles at the bottom of the device. Tighten the two screws at the bottom of the device. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 42: Base-Mounting

    You need to purchase the bases separately. ● Contact technical support to obtain the base dimensions and drawings. ● Prepare two M8x20 hex socket screws and a wrench. Installation Diagram Figure 4-12 Installation Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 43: Connecting Cables

    The cable colors shown in cable connection schematic diagrams are for reference only. Select cables according to local cable specifications. The factors that affect cable selection include the rated current, cable type, routing mode, ambient temperature, and maximum expected line loss. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 44: Preparing Cables

    (1.2 m long FE communi cations cable) RS485: two-core outdoor 4.5–11 mm Prepared 0.3–1.3 mm shielded twisted pair by the cable and M4 OT/DT customer terminal that comply with local standards Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 45: Connecting The Pe Cable

    PE point and can be connected based on site requirements. Procedure Step 1 Prepare the cable. For details, see A Crimping an OT or DT Terminal. Step 2 Connect the PE cable to the PE point. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 46: Opening Maintenance Compartment Doors

    If protective measures cannot be taken, do not open the maintenance compartment door. ● Do not leave unused screws in the maintenance compartment. 5.4.1 Opening the DC Maintenance Compartment Door Step 1 Open the DC maintenance compartment door. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 47 NO TE The preinstalled pagoda connector is used for connecting single-core DC power cables. The pagoda connector among accessories is used for connecting a two-core DC power cable. ----End Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 48: Opening The Ac Maintenance Compartment Door

    (1) One spare M6 screw for the (2) Crimping module maintenance compartment door panel, one spare M6 screw for the power compartment door panel, and one spare equipotential bonding M10 screw for the maintenance compartment Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 49: Connecting Dc Power Cables

    Step 2 Cut the threads of the pagoda connector according to the cable diameter. Step 3 Connect the DC power cables to the terminal block and ensure that the cables are securely connected. ● Single-core cable scenario Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 50 If the DC cable diameter is less than or equal to 20 mm, apply firestop putty to the inside of the pagoda connector to seal the device. ● Two-core cable scenario Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 51 If the cable diameter is less than or equal to 43 mm, you do not need to replace the pagoda connector. Figure 5-8 Replacing a pagoda connector Figure 5-9 Connecting a two-core cable ----End Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 52: Connecting Ac Power Cables

    Step 2 Remove the rubber rings from the crimping module based on the cable diameter range. Cut off the joints between rubber rings using scissors and then remove a rubber ring. All rubber rings are removed in the same way. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 53 – If the AC power cable is a three-core cable, replace the crimping module. – It is recommended that the stripped length of the V wire be 15 mm shorter than that of the U or W wire. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 54: Connecting Communications Cables

    Figure 5-13 Connecting a three-core cable ----End 5.7 Connecting Communications Cables Select either FE or RS485 communication. 5.7.1 Connecting FE Communications Cables If the FE communication is used, perform the operations described in this section. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 55 Step 3 The RJ45 connector is delivered with the device. Arrange the wires of the stripped shielded network cable in the correct sequence and insert them into the shielded plug of the RJ45 connector. Use the RJ45 connector crimping tool to crimp the shielded plug. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 56 Step 7 Route the FE1 cable through the cable hole on the left and the FE2 cable through the cable hole on the right. Insert the plug into the FE port on the inverter and tighten the coupling nut. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 57: Connecting Rs485 Communications Cables

    The DC parallel system does not support RS485 communication. Precautions When routing communications cables, separate communications cables from power cables to prevent communication from being affected. Communications Port Pin Definitions Figure 5-22 Communications port Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 58 (1) Shield layer Step 2 Connect the signal cable connector to the COM port, secure the shield layer of the cable to the communications cable ground point, and bind the cable. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 59: Closing Maintenance Compartment Doors

    5.8.1 Closing the DC Maintenance Compartment Door Adjust the support bar, close the maintenance compartment door, and tighten the two screws on the door. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 60: Closing The Ac Maintenance Compartment Door

    5.8.2 Closing the AC Maintenance Compartment Door Adjust the support bar, close the maintenance compartment door, and tighten the two screws on the door. Figure 5-26 Closing the AC maintenance compartment door Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 61: Verifying The Installation

    The AC maintenance compartment is clean and tidy. The DC maintenance compartment is clean and tidy. The AC maintenance compartment door is closed and the screws on the door are tightened. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 62 Item Expected Result The DC maintenance compartment door is closed and the screws on the door are tightened. The waterproof plugs on the unused USB, COM, and FE ports are secured. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 63: Power-On And Commissioning

    Step 3 Observe the LED indicators to check the operating status of the inverter. ----End 7.2 Preparations and SmartLogger WebUI Login Prerequisites ● The operating system of Windows 7 or later is supported. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 64 LAN, do not cancel the proxy server settings. Open Internet Explorer. Choose Tools > Internet Options. Click the Connections tab and then click LAN settings. Clear Use a proxy server for your LAN. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 65 Otherwise, the security risk warning will still be displayed during login. Figure 7-2 Security risk warning Select a desired language. Select the User Name and enter the Password according to the following table, and then click Log In. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 66: Upgrading The Smartlogger

    – Protect the password by changing it periodically, and keep it secure. If you lose the password, the device must be restored to its factory settings. Huawei will not be held liable for any losses resulting from improper password management.

  • Page 67: Commissioning Using The Deployment Wizard

    NO TE During parameter setting, click Previous, Next, or Skip as required. Set basic parameters. Figure 7-5 Setting basic parameters After Huawei devices are connected, click Search for Device to allocate addresses. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 68 WebUI). Connect to power meters. Figure 7-6 Setting meter parameters Connect to EMIs. Figure 7-7 Setting EMI parameters Connect to the Huawei management system. Figure 7-8 Huawei management system Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 69 Connect to a third-party management system and select IEC104. Figure 7-9 Third-party management system Connect to third-party devices. Figure 7-10 Third-party devices Check that the settings are complete. Figure 7-11 Settings complete ----End Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 70: Setting Parameters

    Grid reconnection voltage lower limit, the inverter is not allowed to reconnect to the grid. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 71 Quick startup for Specifies whether to allow the device to quickly start after the short-time grid power grid recovers from a short-time failure. disconnection Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 72: Protection Parameters

    SUN2000-(62.5KTL, 125KTL)-NHM0 User Manual 7 Power-On and Commissioning 7.5.2 Protection Parameters Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 73 Specifies the level-1 grid underfrequency protection threshold. (Hz) Level-1 UF protection Specifies the level-1 grid underfrequency protection duration. time (ms) Active islanding Specifies whether to enable the active islanding protection protection function. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 74: Feature Parameters

    Enable and the inverter communication is interrupted for communication is interrupted a certain time. for a specified time (set by Communication interruption duration), the inverter will automatically shut down. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 75 Reactive power priority mode, and Active power priority mode. Threshold for Specifies the threshold for triggering LVRT (V) triggering LVRT. The threshold settings should meet the local grid standard. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 76 Threshold of LVRT zero-current mode during LVRT, the zero current mode is used. Otherwise, the mode configured in LVRT mode is used. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 77 For example, if you set HVRT gradient K2 to 2, the increment of negative-sequence reactive current generated by the solar inverter is 20% of the rated current when the AC voltage increases by 10% during HVRT. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 78 If this parameter is set to Enable, derating the active power of the inverter will be derated according to a certain slope when the grid frequency exceeds the frequency that triggers overfrequency derating. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 79: Power Adjustment

    When this parameter is set to instruction valid the scheduling instruction. 0, the scheduling instruction duration (s) takes effect permanently. Plant active power Specifies the rate of active power gradient rise due to irradiance changes. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 80: Power Baseline

    7.5.5 Power Baseline Parameter Description Remarks Active power Adjusts the active output baseline The apparent power baseline baseline (kW) of the inverter. must be greater than or equal to the active power baseline. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 81: Yield Adjustment

    Description Adjust total energy yield A calibrating coefficient for the total energy yield to ensure that the reported energy yield is consistent with the actual energy yield at the grid-connection point Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 82: Maintenance

    DC and AC sides are turned off. Maintenance Items To ensure that the device operates properly for a long term, you are advised to perform routine maintenance as described in this section. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 83 6 months after the reliability are securely grounded. first commissioning and once every 6 to 12 months after that Removing the Baffle Plate from the Air Intake Vent Figure 8-1 Removing the baffle plate Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 84: Operations With The App

    WLAN and allows users to query alarms, configure parameters, and perform routine maintenance. Connection Mode After the DC or AC side of the inverter is powered on, the app can connect to the inverter through the WLAN module. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 85 In these cases, the energy yield will be affected. NO TE ● Configurable parameters vary depending on the grid code. ● The parameter names, value ranges, and default values are subject to change. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 86: Downloading And Installing The App

    You can also scan the QR code to download the installation package. ● SUN2000 app: Log in to Huawei AppGallery, search for SUN2000, and download the app installation package. You can also scan the QR code to download the installation package.
  • Page 87 SUN2000-(62.5KTL, 125KTL)-NHM0 User Manual 8 Maintenance Figure 8-4 Selecting a connection mode (with network access) Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 88 8 Maintenance Figure 8-5 Selecting a connection mode (without network access) (Scenario in which the SUN2000 is connected to other management systems) Run the SUN2000 app and access the operation screen. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 89 The Company will not be held liable for any losses resulting from improper password management. ● You will be locked out for 10 minutes after five consecutive failed password attempts within two minutes. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 90: Setting Parameters

    Specifies the device grounding status at the DC side and the connection to the power grid. Auto start upon grid Specifies whether to allow the device to automatically start recovery after the power grid recovers. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 91 (Hz) below the minimum grid frequency for grid reconnection. Delay time for Specifies the time after which the device begins restarting connecting following the power grid recovery. automatically to the network Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 92: Setting Protection Parameters

    10-min Specifies the 10-minute undervoltage undervoltage protection threshold. protection threshold 10-min Specifies the 10-minute undervoltage undervoltage protection duration. protection time Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 93 (s) exceeds the value. Overfrequency Level-N Specifies the level-N grid protection overfrequency overfrequency protection protection threshold. threshold (Hz) Level-N Specifies the level-N grid overfrequency overfrequency protection duration. protection time (ms) Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 94: Setting Feature Parameters

    If upon this parameter is set to communication Disable, the device needs to interruption is set to be started manually after Enable. communication recovers. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 95 (kW) case of communication failure is set to Enable and Active power threshold when communication fails is set to a fixed value. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 96 Enable, the device shuts down after receiving the 0% power limit command. If this parameter is set to Disable, the device does not shut down after receiving the 0% power limit command. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 97 Select PV– direction of the PID module positive offset for so that the inverter can P-type PV modules. output reactive power at Select PV+ negative night. offset for N-type PV modules. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 98 For example, if you set HVRT gradient K1 to 2, the increment of positive- sequence reactive current generated by the device is 20% of the rated current when the AC voltage increases by 10% during HVRT. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 99 ● HVRT recovery generated by the device is threshold = HVRT 20% of the rated current triggering when the AC voltage threshold + VRT decreases by 10% during exit hysteresis HVRT. threshold Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 100 Otherwise, the mode configured in LVRT mode is used. LVRT mode Sets LVRT mode. The options are Zero-current mode, Constant current mode, Reactive power priority mode, and Active power priority mode. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 101 Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 102 In this case, set this parameter to Enable. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 103 If this parameter is set to derating derating Enable, the active power of the device will be derated according to a certain slope when the grid frequency exceeds the frequency that triggers overfrequency-caused derating. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 104 Hysteresis of Specifies whether to enable frequency-based overfrequency-caused active power derating hysteresis. derating Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 105 (Hz) Delay of Specifies the delay from the underfrequency- time when the caused power underfrequency power raising raising function is triggered to the time when the function takes effect. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 106: Setting Power Adjustment Parameters

    Specifies the active power of the device in percent. Reactive power Reactive power Specifies the change rate of the change gradient device's reactive power. (%/s) Power factor Specifies the power factor of the device. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 107 Q-U characteristic Specifies the reactive power curve mode compensation mode of the device output. Delay for Q-U Specifies the delay time for Q-U characteristic curve adjustment. to take effect Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 108 (cosφ-P) exit compensation based on the voltage curve. Reactive power Specifies the adjustment time for adjustment time the reactive power to reach the target value during reactive power adjustment. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 109: Shutdown And Power-Off

    Step 3 Turn off the AC switch between the inverter and the power grid. Step 4 Open the AC maintenance compartment door, install a support bar, and use a multimeter to measure the voltage between the AC terminal block and the Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 110: Replacing A Fan

    ----End 8.5 Replacing a Fan CA UTION ● Before replacing a fan, power off the inverter. ● When replacing a fan, use insulated tools and wear PPE. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 111 Figure 8-9 Pulling out the fan tray (1) Step 2 Remove the cable ties shared by the cables, unscrew the connectors, and disconnect the cables. Figure 8-10 Disconnecting cables Step 3 Pull out the fan tray completely. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 112 Figure 8-13 Removing cable ties from FAN 2 ● FAN 3 is faulty. Figure 8-14 Removing cable ties from FAN 3 Step 5 Remove the faulty fan (FAN 1 is used as an example). Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 113 Figure 8-17 Binding the cables of FAN 1 ● Binding positions for FAN 2 Figure 8-18 Binding the cables of FAN 2 ● Binding positions for FAN 3 Figure 8-19 Binding the cables of FAN 3 Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 114 Step 9 Connect the cables correctly according to the cable labels and bind the cables. Figure 8-21 Binding cables Step 10 Push in the fan tray completely and tighten the screws. Figure 8-22 Reinstalling the fan tray ----End Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 115: Replacing The Inverter

    ----End 8.7 Disposing of the Inverter If the inverter reaches the end of its service life, dispose of it according to local regulations for the disposal of electrical equipment. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 116: Alarm Reference

    SUN2000-(62.5KTL, 125KTL)-NHM0 User Manual 9 Alarm Reference Alarm Reference For details about alarms, see Inverter Alarm Reference. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 117: Technical Specifications

    Maximum input 750 V 1000 V voltage Maximum DC 400 A 400 A input short- circuit current Minimum startup 300 V ● 420 V voltage ● 500 V ● 570 V Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 118 ● 198.6 A (200 V) ● 160.4 A (330 V) current ● 172.7 A (230 V) ● 196.0 A (270 V) ● 158.9 A (250 V) Supported 50 Hz/60 Hz power grid frequency Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 119: Display And Communication

    Output overcurrent Supported protection Input reverse Supported connection protection Input current Supported backfeed protection Residual current Supported monitoring unit (RCMU) Display and Communication Item SUN2000-62.5KTL-NHM0 SUN2000-125KTL-NHM0 Display LED indicators and WLAN module+app Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 120: General Specifications

    Smart air cooling mode Maximum 4000 m (derated when the altitude is greater than 2000 m) operating altitude Relative 0%–100% RH humidity AC/DC OT/DT terminal terminal IP rating IP66 Topology Transformerless Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 121: A Crimping An Ot Or Dt Terminal

    ● Comply with IEC 61238-1 requirements when using copper-to-aluminum wiring terminals, or aluminum wiring terminals with copper-to-aluminum washers. ● Ensure that the aluminum side of the washer contacts the aluminum wiring terminal, and the copper side contacts the terminal block. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 122 ● Wrap the wire crimping area with heat-shrink tubing or insulation tape. Heat- shrink tubing is used in this section as an example. ● Take care when using a heat gun to avoid heat damage to the equipment. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 123 (4) OT terminal (5) Hydraulic pliers (6) Heat gun Figure A-3 Crimping a DT terminal (1) Cable (2) Core (3) Heat-shrink tubing (4) DT terminal (5) Hydraulic pliers (6) Heat gun Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 124: Grid Codes

    Supported JAPAN-MV270-50Hz Japan power grid Supported JAPAN-MV330-50Hz Japan power grid Supported JAPAN-MV380-50Hz Japan power grid Supported JAPAN-MV270-60Hz Japan power grid Supported JAPAN-MV330-60Hz Japan power grid Supported JAPAN-MV380-60Hz Japan power grid Supported Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 125: C Resetting Password

    10 minutes, all parameters of the inverter remain unchanged.) ----End NO TICE You are advised to reset the password in the morning or at night when the solar irradiance is low. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 126: D Faq

    DC side of the device. If no magnetic ring is installed, install the magnetic rings delivered with the device. If they have been installed, contact the Company's technical support. Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 127: E Certificate Management And Maintenance

    Preconfigured Huawei-issued certificates are used only in the deployment phase, for establishing initial security channels between devices and the customer's network. Huawei does not promise or guarantee the security of preconfigured certificates. The customer shall bear consequences of all security risks and security incidents arising from using preconfigured Huawei-issued certificates as service certificates.

  • Page 128: Contact Information

    To ensure faster and better services, we kindly request your assistance in providing the following information: ● Model ● Serial number (SN) ● Software version ● Alarm ID or name ● Brief description of the fault symptom Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.
  • Page 129 SUN2000-(62.5KTL, 125KTL)-NHM0 User Manual F Contact Information 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 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 130: G Digital Power Customer Service

    SUN2000-(62.5KTL, 125KTL)-NHM0 User Manual G Digital Power Customer Service Digital Power Customer Service https://digitalpower.huawei.com/robotchat/ Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

  • Page 131: Acronyms And Abbreviations

    User Manual H Acronyms and Abbreviations Acronyms and Abbreviations fast Ethernet gigabit Ethernet light emitting diode MPPT maximum power point tracking RCMU residual current monitoring unit WLAN wireless local area network Issue 07 (2024-08-22) Copyright © Huawei Technologies Co., Ltd.

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