华为技术有限公司SUN2000-(70KTL,75KTL)-C1快速指南文档版本：09部件编码：31509024发布日期：2023-03-131指示灯说明机箱正面（1）PV 连接指示灯（2）并网指示灯（3）通信指示灯（4）告警/维护指示灯（5）维护腔门（6）主机面板指示灯状态含义PV 连接指示灯绿灯亮光伏组串中至少一路连接正常，并且对应MPPT 电路的直流输入电压大于等于200V 。
绿灯灭逆变器与所有光伏组串均断连，或所有MPPT 电路的直流输入电压均小于200V 。
并网指示灯绿灯亮逆变器处于并网状态。
绿灯灭逆变器未并网。
通信指示灯绿灯闪（0.2s 亮，0.2s 灭）逆变器正常接收到通信数据。
绿灯灭逆变器持续10s 未接收到通信数据。
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除非另有约定，本文档仅作为使用指导，文档中的所有陈述、信息和建议不构成任何明示或暗示的担保。
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3.设备所有操作必须由训练有素的专业电气技术人员进行。
操作人员应充分熟悉整个光伏并网发电系统的构成、工作原理，及项目所在国家/地区的相关标准。
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端口说明指示灯状态含义告警/维护指示灯告警状态红灯慢闪（1s 亮，4s 灭）逆变器出现提示告警。
红灯快闪（0.5s 亮，0.5s 灭）逆变器出现次要告警。
红灯常亮逆变器出现重要告警。
近端维护状态绿灯慢闪（1s 亮，1s 灭）近端维护中。
绿灯快闪（0.125s 亮，0.125s 灭）近端维护失败。
绿灯常亮近端维护成功。
机箱尺寸工程安装件尺寸（1）防水接头（COM1/COM2/COM3）（3）直流输入端子（由DC SWITCH 1控制）（5）直流开关2（DC SWITCH 2）（7）防水接头（RESERVE ）（2）直流开关1（DC SWITCH 1）（4）直流输入端子（由DC SWITCH 2控制）（6）防水接头（AC OUTPUT ）（8）USB 接口（USB）2安装角度2.1安装空间2.2为了便于将逆变器安装到工程安装件上，同时为了便于逆变器底部接线和后续维护，建议600mm ≤ 底部空间≤ 730mm 。
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SUN2000-(100KTL, 110KTL, 125KTL) Series Quick GuideIssue: 04Part Number: 31500ARJDate: 2019-08-28HUAWEI TECHNOLOGIES CO., LTD.•The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.•Only certified electricians are allowed to operate the device. Operation personnel should understand the composition and working principles of the grid-tied PV power system and local regulations.•Before installing the device, read the user manual carefully to get familiar with product information and safety precautions. Huawei shall not be liable for any consequences caused by the violation of the storage, transportation, installation, and operation regulations specified in this document and the user manual.•Use insulated tools when installing the device. For personal safety, wear proper personal protective equipment (PPE).1Overview(1)Panel(2) LED indicators(3) Maintenance compartment door(4) Mounting bracket(5) External fan tray(6) DC input terminal group 1 (PV1–PV8, controlled byDC SWITCH 1)(7) DC switch 1 (DC SWITCH 1)(8) DC input terminal group 2 (PV9–PV14, controlled byDC SWITCH 2)(9) DC switch 2 (DC SWITCH 2)(10) DC input terminal group 3 (PV15–PV20, controlled byDC SWITCH 3)(11) DC switch 3 (DC SWITCH 3)(12) Ventilation valve2Installation Requirements3Installing a Solar Inverter Recommended: 600 mm ≤ Bottom space ≤ 730 mmDimensionsAngle Space•This quick guide describes how to install a solarinverter on a support. For details about wall-mountedinstallation, see the user manual.•The M12x40 bolt assemblies are delivered with the solar inverter. If the bolt assembly length does not meet the installation requirements, prepare M12 bolt assemblies by yourself and use them together with the delivered M12 nuts.Position for binding the security Torx wrenchNOTE1.Install the mounting bracket.2.Install the solar inverter onto the mounting bracket.3.Tighten security Torx screws.It is recommended that anti-rust measures be taken on the positions for drilling e the handles to facilitate installation. Handles are optional and delivered separately. Ensure that the handles are securelyinstalled. After the installation is complete, remove the handles and set them aside.Installation Positions of Handles During InstallationInstallation Positions of Handles During Transportation4Connecting CablesNo.Cable TypeRecommended Conductor Cross-Sectional Area Outer Diameter 1PE cable Outdoor cable and M10 OT/DT terminalsS p ≥ S/2N/A 2Trackingsystem power cableThree-core outdoor copper cable with dual-layer protection10 mm 215–18 mm3AC output power cable (multi-core)•If you connect a ground cable to the ground point on the chassis shell, you are advised to use a three-core (L1, L2, and L3)outdoor cable and M12 OT/DTterminals (L1, L2, and L3).•If you connect a ground cable tothe ground point in the maintenance compartment, youdo not need to prepare a PEcable but are advised to use afour-core (L1, L2, L3, and PE) outdoor cable, M12 OT/DT terminals (L1, L2, and L3), and M10 OT/DT terminals (PE).•Copper cable−S: 95–185 mm 2−S p ≥ S/2•Aluminum alloycable or copper-cladaluminum cable:−S:120–240 mm 2−S p ≥ S/224–66 mmAC output power cable (single-core)You are advised to use a single-core outdoor cable and M12 OT/DT terminals.•Copper cable −S: 95–185 mm 2•Aluminum alloy cable or copper-cladaluminum cable:−S:120–240 mm 214–32 mm4DC input power cable PV cable that meets the 1100 Vstandard4–6 mm 2 4.5–7.8 mm5RS485communications cableOutdoor shielded twisted pair that meets the local standard 0.25–1 mm2•One or twocommunications cables:4–11 mm •Threecommunications cables: 4–8 mmThe value of S is valid only if the conductors of the PE cable and AC power cable use the same Preparations4.1•Connect cables in accordance with the local installation laws and regulations.•To prevent poor cable connection due to overstress, leave enough slack before connecting the cables to the appropriate ports.S and S p are the conductor cross-sectional areas of AC power cables and PE cables respectively.3-pin Model (125KTL) Cable DescriptionNOTE4-pin Model (100KTL/110KTL)Cable DescriptionNo.Cable Type RecommendedConductor Cross-Sectional AreaOuter Diameter1PE cable Outdoor cable and M10 OT/DTterminalS p≥ S/2N/A2Trackingsystem powercableThree-core outdoor copper cablewith dual-layer protection10 mm215–18 mm3AC outputpower cable(multi-core)•If you connect a ground cable tothe ground point on the chassisshell and the neutral wire is notused, you are advised to use athree-core (L1, L2, and L3)outdoor cable and M12 OT/DTterminals (L1, L2, and L3).•If you connect a ground cable tothe ground point in themaintenance compartment andthe neutral wire is not used, youare advised to use a four-core(L1, L2, L3, and PE) outdoorcable, M12 OT/DT terminals(L1, L2, and L3), and M10OT/DT terminals (PE).•If you connect a ground cable tothe ground point on the chassisshell and the neutral wire isused, you are advised to use afour-core (L1, L2, L3, and N)outdoor cable and M12 OT/DTterminals (L1, L2, L3, and N).•If you connect a ground cable tothe ground point in themaintenance compartment andthe neutral wire is used, you areadvised to use a five-core (L1,L2, L3, N, and PE) outdoorcable, M12 OT/DT terminals(L1, L2, L3, and N), and M10OT/DT terminals (PE).•Copper cable−S: 95–185 mm2−S p≥ S/2•Aluminum alloycable or copper-cladaluminum cable:−S: 120–240 mm2−S p≥ S/224–66 mmAC outputpower cable(single-core)You are advised to use a single-core outdoor cable and M12OT/DT terminals.•Copper cable−S: 95–185 mm2•Aluminum alloycable or copper-cladaluminum cable:−S: 120–240 mm214–32 mm4DC input powercablePV cable that meets the 1100 Vstandard4–6 mm2 4.5–7.8 mm5RS485communicationscableOutdoor shielded twisted pair thatmeets the local standard0.25–1 mm2•One or twocommunicationscables: 4–11 mm•Threecommunicationscables: 4–8 mmThe value of S is valid only if the conductors of the PE cable and AC power cable use the sameInstalling a PE Cable4.2•It is recommended that the PEcable of the solar inverter beconnected to a nearby groundpoint. Connect the PE pointsof all solar inverters in thesame array to ensureequipotential connections toPE cables.•To enhance the corrosionresistance of a groundterminal, you are advised toapply silica gel or paint on itafter connecting the PE cable.Opening the Maintenance Compartment Door4.3•Do not open the panel of the solar inverter.•Before opening the maintenance compartment door, turn off the downstream AC output switch and three DC switches at the bottom.•Do not open the maintenance compartment door in rainy or snowy days. If you have to, take protective measures to prevent rain or snow from entering the maintenance compartment.•Do not leave unused screws in the maintenance compartment.1.Loosen the screws on themaintenance compartment door.2.Open the maintenance compartment door and adjustthe support bar.Reserved PE pointNOTE3.Remove the accessories and set them aside.4.Select a crimping module according to the type of the AC output power cable.3-pin Model4-pin Model Multi-core CableSingle-core Cable(Optional) Installing the Tracking System Power Cable4.5•The tracking system should be equipped with an overcurrent protective device or component. The length of the cable between the power cable terminal and the overcurrent protection device or component must be less than or equal to 2.5 m.•The power supply of the tracking system should be an AC three-phase power grid.•Keep inflammable materials away from the power cable.•The power cable must be protected with a conduit to prevent short circuits caused by insulation layer damage.Removing the Rubber Rings from the Crimping Module4.4Use scissors to cut off the joints of the rubber rings to remove them. All rubber rings are removed in the same way.Remove the corresponding rubber rings strictly according to the cable diameter range, and ensure that the crimping module is not damaged. Otherwise, the protection level of the solar inverter will be affected.4.6Installing the AC Output Power Cable•This section describes how to install an AC output power cable for the 3-pin model.•The cable outer diameter can be measured using the ruler sticker in the maintenance compartment.•Ensure that the AC output power cable is secured. Failure to do so may cause the solar inverter to malfunction or damage to its terminal block by issues such as overheating.•Sufficient slack should be provided in the PE cable to ensure that the last cable bearing the force is the PE cable when the AC output power cable bears pulling force due to force majeure.•If a screw on the maintenance compartment door is lost, obtain the spare screw from the fitting bag tied at the bottom of the maintenance compartment.Multi-core Connection MethodSingle-core Connection Method3-pin Model(125KTL)Cable ConnectionsFour-core cable Three-core cable Single-core cable4-pin Model (100KTL/110KTL)Cable ConnectionsThree-core cableFour-core cable (including PE)Four-core cable (including N)Five-core cableSingle-core cable (including N)Single-core cable (excluding N)Ensure that the PV module output is well insulated to ground.Installing DC Input Power Cables4.7When the DC inputs are not fully configured, the DC input terminals must meet the following requirements:1.Evenly distribute the DC input power cables on the DC input terminals controlled by the three DC switches. DC SWITCH 1 is preferred.2.Maximize the number of connected MPPT circuits.3.Give preference to even-numbered DC input terminals.Selecting DC Input TerminalsWiring Description of Y-branch ConnectorsWiring rules:1. A maximum of one set of Y-branch connectors can be used for each MPPT.2.The PV+ on the inverter side must be connected to the PV+ on the PV string side, and the PV –on the inverter side must be connected to the PV –on the string side.•When connecting cables using Y-branch connectors, ensure that all connectors are of the same model provided by the same vendor.•If connectors of different vendors are connected to each other or different types of connectorsof the same vendor are connected to each other without permission, the contact resistance of the connectors will exceed the allowed value. As a result, the connectors will be heated and oxidized continuously, which is prone to faults.•When the Y-branch connector is used with the MC4 EVO2 contacts, you are advised to use the32.6020-22100-HZ (Staubli) or the PV-CZM-22100 (Staubli) crimping tool. When choosing PV-CZM-22100 (Staubli), do not use the locator. Otherwise, the metal contacts would be damaged.a.Wiring diagram (with Y-branch connectors connected to the inverter)b.Wiring diagram (with Y-branch connectors connected to the PV strings)Positive metal contactNegative metal contact Ensure that the cablecannot be pulled outafter being crimped.Positive connector Negative connector ClickClickUse a multimeterset to the DCposition to measurethe DC voltage.Ensure that thelocking nut issecured.Open-endspanner PV-MS PV-CZM-22100e the positive and negative Staubli MC4metal contacts and DC connectors supplied with thesolar inverter. Using incompatible positive and negative metal contacts and DC connectors may result in serious consequences. The caused device damage is not covered under any warranty.2.Before connecting the DC input power cables, label the cable polarities to ensure correct cableconnections. Otherwise, the solar inverter may be damaged.3.Measure the voltage at the DC input end using a multimeter set to the DC position. If the voltageis a negative value, the DC input polarity is incorrect. Correct the polarity. If the voltage isgreater than 1100 V, too many PV modules are configured to the same string. Remove some PV modules.4.If the DC input power cable is reversely connected and the DC switches are set to ON, do notperform any operation on the switches or the positive and negative connectors. Otherwise, the device may be damaged. The caused device damage is not covered under any warranty. Wait until the solar irradiance weakens at night and the PV string current decreases below 0.5 A. Set the three DC switches to OFF, and correct the connection of positive and negative connectors.Installing the RS485 Communications Cable4.8•The solar inverter supports RS485communication and MBUS communication.If the MBUS communication mode is used,you do not need to connect thecommunications cable to the RS485-1 port.•This section describes how to connect three communications cables.•When routing communications cables, separate communications cables from power cables to prevent communication from being affected.Pin Definitions of Communications PortsInstalling a DC input power cablePort Pin Definition Pin Definition DescriptionRS485-11RS485A IN, RS485differential signal+2RS485A OUT, RS485differential signal+Used for cascadingsolar inverters orconnecting to devicessuch as theSmartLogger.3RS485B IN, RS485differential signal–4RS485B OUT, RS485differential signal–Protectionground5PE, shielding ground6PE, shielding ground N/ARS485-27RS485A, RS485differential signal+8RS485B, RS485differential signal–Used for connecting toRS485 slave devices.One or twocommunications cablesThree communicationscablesOne communications cable5Verifying the InstallationNo.Acceptance Criteria1The solar inverter is installed correctly and securely.2The DC switches and downstream AC switch are set to OFF.3All cables are connected correctly and securely.4Unused terminals and ports are locked by watertight caps.5The installation space is proper, and the installation environment is clean and tidy. 6The maintenance compartment door is closed and secured.6Powering On the SystemBefore turning on the AC switch between the solar inverter and the power grid, check that the AC voltage is within the specified range using a multimeter set to the AC position.1.Turn on the AC switch between the solar inverter and the power grid.2.Set DC SWITCH 1 (MAIN SWITCH) at the bottom of the solar inverter chassis to ON.3.Check the status of the PV connection indicator. If it is steady green, set DC SWITCH 2 and DCSWITCH 3 to ON.4.Observe the LED indicators to check the operating status of the solar inverter.Indicator Status (Blinking Fast: On for 0.2sand then Off for 0.2s; BlinkingSlowly: On for 1s and then Offfor 1s)DescriptionPV connection indicator Steady green At least one PV string is properly connected,and the DC input voltage of the correspondingMPPT circuit is at least 200 V.Blinking green fast If the alarm/maintenance indicator is red, anenvironmental fault at the DC side of the solarinverter is generated.Off The solar inverter disconnects from all PVstrings, or the DC input voltage of all MPPTcircuits is less than 200 V.Grid connection indicator Steady green The solar inverter is in grid-tied mode. Blinking green fast If the alarm/maintenance indicator is red, anenvironmental fault(excluding Grid Loss) atthe AC side of the solar inverter is generated. Off T he solar inverter is not in grid-tied mode (dueto reasons including Grid Loss).Communications indicator Blinking green fast The solar inverter receives communicationdata normally.Off The solar inverter has not receivedcommunication data for 10 seconds.Alarm/ Maintenance indicator Alarm status Steady red A major alarm is generated.•If the PV connection indicator or gridconnection indicator is blinking green fast,troubleshoot DC or AC environmental faultsas instructed by the SUN2000 app.•If the PV connection indicator and gridconnection indicator are both not blinkinggreen fast, replace components or the solarinverter as instructed by the SUN2000 app.Blinking red fast A minor alarm is generated.Blinking red slowly A warning alarm is generated.LocalmaintenancestatusSteady green Local maintenance succeeds.Blinking green fast Local maintenance fails.Blinking green slowly In local maintenance or shuts down over acommand.Login Page SUN2000 App71.The SUN2000app is a mobile phone app that communicates with the solar inverter over aWLAN module, a Bluetooth module, or a USB data cable. As a convenient local monitoring and maintenance platform, it allows for querying alarms, configuring parameters, and performing routine maintenance. The app is named SUN2000.2.Access Huawei application store (https://) or Google Play(https://), search for SUN2000, and download the app installation package.3.Connect the WLAN module, Bluetooth module, or USB data cable to the USB port on the solar inverter to ensure that the solar inverter can communicate with the SUN2000app.WLAN Connection or Bluetooth Connection USB Data Cable ConnectionSelect ConnectionModeSelect User Quick SettingsFunction Menu•The screenshots in this document correspond to app version 3.2.00.001 (this app is available only on Android phones currently).•When the WLAN connection is used, the initial name of the WLAN hotspot is Adapter-WLAN module SN , and the initial password is Changeme .•The initial password to log in to the app for Common User , Advanced User , and Special User is 00000a .•Use the initial password upon first power-on and change it immediately after login. To ensure account security, change the password periodically and keep the new password in mind. Not changing the initial password may cause password disclosure. A password left unchanged for a long period of time may be stolen or cracked. If a password is lost, devices cannot be accessed. In these cases, the user is liable for any loss caused to the PV plant.•Set the correct grid code based on the application area and scenario of the solar inverter.NOTEAndroid AndroidHuawei Technologies Co., Ltd.Huawei Industrial Base, Bantian, Longgang Shenzhen 518129 People's Republic of China。
