Huawei SUN2000-125KTL-M5 User Manual

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SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0,

286KTL-H0)

User Manual

Issue

Date

2023-09-22

HUAWEI TECHNOLOGIES CO., LTD.

Table of Contents

Summary of Contents for Huawei SUN2000-125KTL-M5

Page 1 SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0, 286KTL-H0) User Manual Issue Date 2023-09-22 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
About This Document Purpose This document describes the installation, cable connections, commissioning, maintenance, and troubleshooting of the SUN2000-125KTL-M5, SUN2000-200KTL- H4, SUN2000-250KTL-H0 and SUN2000-286KTL-H0 (also referred to as SUN2000). Before installing and operating the SUN2000, ensure that you are familiar with the features, functions, and safety precautions provided in this document.
Page 4 5.2 Preparing Cables. Updated 10 Technical Data. Updated B Grid Code. Issue 02 (2023-01-10) Updated 1 Safety Information. Updated Base-mounting. Issue 01 (2022-09-20) This issue is used for first office application (FOA). Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 5: Table Of Contents
5.2 Preparing Cables................................... 37 5.3 Connecting the Ground Cable............................38 5.4 Opening Maintenance Compartment Doors....................... 39 5.4.1 Opening the DC Maintenance Compartment Door....................39 5.4.2 Opening the AC Maintenance Compartment Door....................40 Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 6 8.5 Replacing a Fan................................... 104 8.6 Replacing the Inverter...............................109 8.7 Disposing of the Inverter..............................109 9 Alarm Reference........................110 10 Technical Data........................119 A Crimping an OT or DT Terminal..................124 Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 7 User Manual Contents B Grid Code..........................127 C Resetting Password......................129 D Certificate Management and Maintenance..............130 E Contact Information......................131 F Digital Power Customer Service..................133 G Acronyms and Abbreviations................... 134 Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 8: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 9: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 10 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 11: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 12 ● 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 13: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 14 Do not install the equipment in an area conducive to 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 15: Mechanical Safety
Equipment with scratches must not be exposed for an extended period of time. ● Do not perform operations such as arc welding and cutting on the equipment without evaluation by the Company. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 16 When moving the equipment, assign dedicated personnel to take care of it. ● Choose sea, roads in good conditions, or airplanes for transportation. Do not transport the equipment by railway. Avoid tilt or jolt during transportation. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 17 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 18 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 19 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 20: Overview
User Manual 2 Overview Overview 2.1 Model NO TICE The SUN2000-250KTL-H0 and SUN2000-125KTL-M5 are applicable only to the Chinese mainland. For other countries or regions, the Company does not provide quality assurance. This document involves the following product models: ●...
Page 21 Figure 2-2 Position of the model label on the external package (1) Position of the model label Figure 2-3 Position of the nameplate Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 22: Product Overview
Embedded residual current monitoring unit enables the inverter to be disconnected from the power grid immediately after the residual current exceeds the threshold. Power Grid Type The SUN2000 supports IT power grids Figure 2-4 Power grid type Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 23: Networking Application
User Manual 2 Overview 2.3 Networking Application (A) PV string (B) DC combiner box (C) Inverter (D) Smart Array (E) Smart Transformer (F) Management system Controller (SACU) Station (STS) (G) Power grid Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 24: Appearance
Note [1]: The security Torx wrench is delivered with the device and is tied to the bracket on the top of the device. Remove the security Torx wrench from the bracket and keep it safe. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 25 Communicat Blinking green fast The device receives data through northbound FE or RS485 communication. indication The device has not received data through northbound FE or RS485 communication in at least 10s. Issue 04 (2023-09-22) 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 27 Fan operation warning Do not touch the fan when the device is running to prevent mechanical injury. Fan replacement warning Disconnect the power connector of the fan before replacing it. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 28: Working Principle
Figure 2-8 Circuit diagram 2.5.2 Working Modes The SUN2000 has three working modes: standby, operating, and shutdown. Figure 2-9 Working modes Issue 04 (2023-09-22) 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 30: Storage
● If an inverter has been stored for more than two years, it must be checked and tested by professionals before being put into use. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 31: Installation
500 m of the coast, or those exposed to a sea breeze (this can vary due to such weather conditions as typhoons and monsoons, or terrain such as dams and hills). Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 32 Reserve sufficient clearance around the device for installation and heat dissipation. Figure 4-2 Installation clearance NO TE For ease of installation, cable connection, and maintenance, reserve 600–730 mm clearance underneath. For further questions regarding clearance, consult local technical support engineers. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 33: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 34 Digital or bubble Cable tie Marker tape level Scissors Heat-shrink tubing Heat gun Digital multimeter DC voltage measurement range ≥ 1500 V DC AC voltage measurement range ≥ 800 V AC Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 35: Pre-Installation Checks
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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 36: Moving The Inverter
● Secure the lifting handles (with the steel washers of the lifting handles closely fitted to the battery pack). ● If the stud of a lifting handle is bent, replace the lifting handle in time. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 37: Hoisting
● To prevent damage to the device surfaces, do not use metal lifting ropes such as steel ropes. ● Slowly and steadily hoist and position the inverter to avoid bumping and damaging the device enclosure. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 38 Take the device out of the packing case, route the lifting ropes (with adequate load capacity to support the device) through the two lifting eyes, and hoist the device to the installation position. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 39: Support-Mounted Installation
The inverter mounting bracket has four groups of screw holes, with each group containing four holes. Mark a hole in each group based on site requirements (four holes are marked in total). The two round holes are recommended. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 40 The security Torx wrench is delivered with the device and is tied to the bracket on the top of the device. Remove the security Torx wrench from the bracket and keep it safe. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 41: Base-Mounting
4.6 Base-mounting Prerequisites ● 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. Issue 04 (2023-09-22) 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 44: Preparing Cables
Company (1.2 m long FE communi cations cable) RS485: Outdoor shielded 4.5–11 mm Prepared 0.3–1.3 mm twisted pair cable that by the meets local standards and customer M4 OT/DT terminal Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 45: Connecting The Ground Cable
Procedure Step 1 Prepare cable by referring to A Crimping an OT or DT Terminal. Step 2 Connect the ground cable to the protective ground point. Issue 04 (2023-09-22) 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 47: Opening The Ac Maintenance Compartment Door
The preinstalled pagoda connector is used for connecting single-core DC power cables. The pagoda connector in accessories is used for connecting two-core DC power cables. ----End 5.4.2 Opening the AC Maintenance Compartment Door Step 1 Open the AC maintenance compartment door. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 48 NO TE The preinstalled crimping module is used for connecting single-core AC power cables. The crimping module in accessories is used for connecting a three-core AC power cable. ----End Issue 04 (2023-09-22) 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 specifications. Step 3 Connect the DC power cables to the terminal block and ensure that the cables are securely connected. ● Single-core cable scenario Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 50 SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0, 286KTL-H0) User Manual 5 Connecting Cables Figure 5-7 Connecting two single-core cables Figure 5-8 Connecting four single-core cables Issue 04 (2023-09-22) 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 5-9 Replacing the pagoda connector Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 52: Connecting Ac Power Cables
● If an AC switch is used with specifications beyond local standards, regulations, or the Company's recommendations, the switch may fail to turn off in a timely manner in case of exceptions, causing serious faults. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 53 Figure 5-11 Removing a rubber ring Step 3 Connect the AC power cables to the terminal block and ensure that the cables are securely connected. ● Single-core cable scenario Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 54 – If the AC power cable is a multi-core cable, replace the crimping module. – It is recommended that the stripped length of the L2 wire be 15 mm shorter than that of the L1 or L3 wire. Figure 5-13 Replacing a crimping module Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 55: Connecting Communications Cables
● In the FE ring network scenario, all inverters need to be connected in hand-in- hand mode through FE communications cables. A maximum of 44 inverters can be connected. The FE communication distance between the inverters and the SmartModule cannot exceed 100 m. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 56 Use the RJ45 connector crimping tool to crimp the shielded plug. Figure 5-17 RJ45 connector wiring (1) White-and-orange (2) Orange (3) White-and-green (4) Blue (5) White-and-blue (6) Green (7) White-and-brown (8) Brown Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 57 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 58: Connect The Rs485 Communications Cable
If the RS485 communication is used, perform the operations described in this section. Precautions When routing communications cables, separate communications cables from power cables to prevent communication from being affected. COM Port Pin Definitions Figure 5-23 Communications port Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 59 Figure 5-24 Preparing RS485 communications cables (1) Shield layer Step 2 Connect the connector to the COM port, secure the shield layers to the ground point of the communications cables, and bind the cables. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 60: Closing Maintenance Compartment Doors
5.8.1 Closing the DC Maintenance Compartment Door Step 1 Adjust the support bar, close the maintenance compartment door, and tighten the two screws on the door. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 61: Closing The Ac Maintenance Compartment Door
5.8.2 Closing the AC Maintenance Compartment Door Step 1 Adjust the support bar, close the maintenance compartment door, and tighten the two screws on the door. Figure 5-27 Closing an AC maintenance compartment door ----End Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 62: Connection Mode Description
The DC maintenance compartment is clean and tidy, without foreign matter. The AC maintenance compartment door is closed and the screws on the door are tightened. The DC maintenance compartment door is closed and the screws on the door are tightened. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 63 SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0, 286KTL-H0) User Manual 6 Connection mode description Item Expected Result The waterproof plugs on the unused USB, COM, and FE ports are secured. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 64: Power-On And Commissioning
7.2 Preparations and SmartLogger WebUI Login Prerequisites ● The operating system of Windows 7 or later is supported. ● Browser: Chrome 52, Firefox 58, or Internet Explorer 9, or a later version is recommended. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 65 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 66 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 67: Commissioning Using The Deployment Wizard
– 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 68 286KTL-H0) User Manual 7 Power-On and Commissioning Figure 7-3 Setting basic parameters After Huawei devices are connected, click Search for Device to allocate addresses. Figure 7-4 Search for device NO TE During the process of Search for Device, do not perform upgrade operations (such as upgrading through the app, network management system, or WebUI).
Page 69 7 Power-On and Commissioning Figure 7-5 Setting meter parameters Connect to EMIs. Figure 7-6 Setting EMI parameters Connect to the Huawei management system. Figure 7-7 Huawei management system Connect to a third-party management system. Select IEC104. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 70 SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0, 286KTL-H0) User Manual 7 Power-On and Commissioning Figure 7-8 Third-party management system Connect to third-party devices. Figure 7-9 Third-party devices The settings are complete. Figure 7-10 Settings complete ----End Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 71: Upgrading The Smartlogger
● Method 2: Log in as installer using your app login password (the initial password is 00000a). ----End 7.5 Setting Parameters Click Monitoring > Inverter > Running Param. to set running parameters and click Submit. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 72: Grid Parameters
(Hz) power grid frequency is lower than Grid reconnection frequency lower limit, the inverter is not allowed to reconnect to the grid. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 73 7 Power-On and Commissioning Parameter Setting Description 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 74: Protection Parameters
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 enable function. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 76 LVRT is set to Enable. current mode, Reactive power priority mode, and Active power priority mode. LVRT triggering Specifies the threshold for threshold (V) triggering LVRT. The threshold settings should meet the local grid standard. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 77 Threshold of LVRT zero-current mode during LVRT, the zero current mode is used. Otherwise, the mode configured in LVRT mode is used. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 78 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 79 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 80: Power Adjustment Parameters
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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 81: Reference Power Parameters
Parameter Setting Description Remarks Active power Specifies the active output The apparent power baseline baseline (kW) baseline of the inverter. must be greater than or equal to the active power baseline. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 82: Yield Adjustment Parameter
Setting Description Adjust total energy A calibrating coefficient for the total energy yield to ensure that yield the reported energy yield is consistent with the actual energy yield at the grid-connection point. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 83: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 84 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 85: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 86 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 87: Downloading And Installing The App
You can also scan the QR code to download the installation package. ● SUN2000 app: Log in to Huawei AppGallery (https://appstore.huawei.com), search for SUN2000, and download the app installation package. You can also scan the QR code to download the installation package.
Page 88 SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0, 286KTL-H0) User Manual 8 Maintenance Figure 8-4 Selecting a connection mode (with network access) Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 89 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 90 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 91: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 92 (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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 93: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 94 (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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 95: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 97 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 98 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 99 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 100 ● 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 101 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 104 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 106 (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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 107: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 108 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 109 (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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 110: Shutdown And Power-Off
Otherwise, electric shocks or arcs may occur. Procedure Step 1 Wear proper personal protective equipment (PPE). Step 2 Send a shutdown command on the SUN2000 app, SmartLogger, or management system. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 111: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 112 Figure 8-9 Pulling out a 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. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 113 Figure 8-13 Removing cable ties from fan 2 ● Fan 3 is faulty. Figure 8-14 Removing the cable tie from fan 3 Step 5 Remove the faulty fan (fan 1 is used as an example). Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 114 Figure 8-17 Binding the cables of fan 1 ● Binding positions for fan 2 Figure 8-18 Binding the cables of fan 2 ● Binding position for fan 3 Figure 8-19 Binding the cable of fan 3 Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 115 Step 9 Connect the cables correctly according to the cable labels and bind the cables. Figure 8-21 Binding cables Step 10 Push the fan tray into the slot and tighten the screw. Figure 8-22 Reinstalling a fan tray ----End Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 116: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 119 AC cable. 4. If the AC cable is correctly connected and the alarm persists and affects the operation of the plant, contact the local power operator. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 120 2. If the alarm occurs frequently, check whether the power grid frequency is within the allowed range. If not, contact the local power operator. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 121 Current temporarily. The device will operation. automatically recover after the fault is rectified. 2. If the alarm occurs frequently or persists, check whether the DC-to-ground impedance is too low. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 122 3. The device is faulty. threshold, improve the ventilation and heat dissipation. 3. If the ventilation and ambient temperature meet requirements, contact your dealer or technical support. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 123 Certifica Invalid 2096 Manage Warnin Cause ID = 1 Replace the digital signature ment certificate in time. The digital signature certificate is system about to expire. certifica te to expire Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 124 3. Check that the fastening torque of wiring terminals meets the requirement. 4. Turn on the AC switch and DC switch, and restart the inverter. If the fault persists, contact your dealer or technical support. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 125 AC switch and insufficient. DC switch. If the fault persists, 2. The flash memory has bad replace the monitoring board sectors. or contact your dealer or technical support. Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 126: Technical Data
Number of inputs Number of MPPTs Maximum 1500 V 1500 V 1500 V 1000 V input voltage Maximum DC 500 A 500 A 500 A 400 A input short- circuit current Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 127 286 kVA (720 286 kVA (720 157 kVA (360 Maximum 275 kW (690 275 kW 275 kW (690 137.5 kW active power (315 V) 286 kW (720 286 kW (720 157 kW (360 Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 128 KTL-M5 Overvoltage DC II/AC III category DC surge Type II protection AC surge Type II protection Ground fault Supported protection Insulation Supported resistance detection Anti-islanding Supported protection Output Supported overcurrent protection Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 129 –30°C to –25°C to –30°C to temperature +60°C +60°C +60°C +60°C (derated at (derated at (derated at +40°C or +40°C or +40°C or higher) higher) higher) Cooling mode Smart air cooling Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 130 KTL-H4 KTL-H0 KTL-H0 KTL-M5 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 131: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 132 ● 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 133 (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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 134: B Grid Code
NRS-097 power grid SA-RPPS- South Africa Supported MV720 RPPS power grid SAUDI-MV720 Saudi Arabia Supported Supported power grid UZBEKISTAN- Uzbekistan Supported Supported MV720 power grid EGYPT-ETEC- Egypt power Supported MV720 grid Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 135 SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0, 286KTL-H0) User Manual B Grid Code Grid Code Description SUN2000-200 SUN2000-250 SUN2000-286 SUN2000-125 KTL-H4 KTL-H0 KTL-H0 KTL-M5 KAZAKHSTAN Kazakhstan Supported -MV690 power grid CHINA- China power Supported MV360 grid Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 136: 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 137: D 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 138: E 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 139 SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0, 286KTL-H0) User Manual E 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 140: F Digital Power Customer Service
SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0, 286KTL-H0) User Manual F Digital Power Customer Service Digital Power Customer Service https://digitalpower.huawei.com/robotchat/ Issue 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.
Page 141: G Acronyms And Abbreviations
User Manual G 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 04 (2023-09-22) Copyright © Huawei Technologies Co., Ltd.

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