User Guide for HUAWEI models including: SUN2000-20KTL-M3, SUN2000-29.9KTL-M3, SUN2000-30KTL-M3, SUN2000-36KTL-M3, SUN2000-40KTL-M3, SUN2000-36KTL-M3 Smart String Solar Inverter, Smart String Solar Inverter
HUAWEI TECHNOLOGIES CO., LTD. SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-M3 Quick Guide Issue: 04 Part Number: 31500EAC Date: 2021-03-05
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-M3 Quick Guide Issue: 04 Part Number: 31500EAC Date: 2021-03-05 HUAWEI 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 qualified and trained electrical technicians 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). 1 Overview (1) LED indicators (3) Heat sink (5) Communications port (COM) (7) DC switch (DC SWITCH) (9) Ventilation valves (11) AC output port (2) Host panel (4) Screws for fixing the awning (6) Hole for the DC switch locking screw (8) Smart Dongle port (4G/WLAN-FE) (10) DC input terminals (PV1PV8) (12) Ground point 1 Copyright © Huawei Technologies Co., Ltd. 2021. All rights reserved. 2 Installation Requirements Angle Space Dimensions 3 Installing a Solar Inverter · M12x40 bolt assemblies are supplied with the solar inverter. If the bolt length does not meet the installation requirements, prepare M12 bolt assemblies by yourself and use them together with the supplied M12 nuts. · This quick guide describes how to install a solar inverter on a support. For details about wallmounted installation, see the user manual. · For models used in Australia, install the DC switch locking screw according to local standards. The DC switch locking screw is delivered with the solar inverter to prevent the solar inverter from being started by mistake. · Before installing the mounting bracket, remove the security Torx wrench and set it aside. 2 Position for binding the security Torx wrench Moving the Solar Inverter (Optional) Installing the DC Switch Locking Screw 1. Install the mounting bracket. It is recommended that anti-rust measures be taken on the positions for drilling holes. 3 2. Install the solar inverter onto the mounting bracket. 3. Tighten the security Torx screws on both sides. Secure the screws on the sides before connecting cables. 4 Connecting Cables 4.1 Preparations · Connect cables in accordance with local installation laws and regulations. · The cable specifications must comply with local standards. · Before connecting cables, ensure that the DC switch of the solar inverter and all the switches connected to it are set to OFF. Otherwise, the high voltage produced by the solar inverter may cause electric shocks. No. Cable Type Specifications 1 PE cable Single-core outdoor coppercore cable Conductor cross-sectional area 16 mm2 2 AC output power Outdoor copper- cable core/aluminum-core cable · Conductor cross-sectional area: 16-50 mm2 outdoor copper-core cable or 3550 mm2 outdoor aluminum-core cablea · Cable outer diameter: 1638 mm 3 DC input power cable Common outdoor PV cable in · Conductor cross-sectional area: 46 the industry (recommended mm2 model: PV1-F) · Cable outer diameter: 5.59 mm (Optional) RS485 Two-core outdoor shielded · Conductor cross-sectional area: 0.21 4 communications twisted pair (recommended mm2 cable model: DJYP2VP2-2x2x0.75) · Cable outer diameter: 411 mm Note a: Five-core cables with a cross-sectional area of 5 x 35 mm2 or 5 x 50 mm2 are not supported. 4 4.2 Connecting a PE Cable Do not connect the neutral wire to the enclosure as a PE cable. Otherwise, electric shocks may occur. · The PE point at the AC output port is used only as a PE equipotential point, not a substitute for the PE point on the enclosure. · It is recommended that silica gel or paint be applied around the ground terminal after the PE cable is connected. Reserved PE point 4.3 Installing the AC Output Power Cable · Use a socket wrench and extension rod to connect the AC power cable. The extension rod must be longer than 100 mm. · 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. · Do not install third-party devices in the AC connection box. · You need to prepare M8 OT terminals by yourself. 1. Remove the AC terminal box and install partition boards. 5 2. Connect the AC output power cable (using a five-core cable as an example). · To avoid damaging the rubber liner, do not route a cable with a crimped OT terminal directly through it. · It is recommended that the length of the PE cable to be stripped be 15 mm longer than the length of other cables. · The cable colors in figures are for reference only. Select appropriate cables according to the local standards. 6 4.4 Installing DC Input Power Cables 1. Use the positive and negative Staubli MC4 metal terminals and DC connectors supplied with the solar inverter. Using incompatible positive and negative metal terminals and DC connectors may result in serious consequences. The caused device damage is not covered under any warranty. 2. You are advised to use the PV-CZM-22100 (Staubli) crimping tool and do not use it with the positioning block. Otherwise, the metal terminals may be damaged. The PV-MS (Staubli) or PV-MS-HZ (Staubli) open-end wrench is recommended. 3. Ensure that the PV module output is well insulated to ground. 4. The DC input voltage of the SUN2000-29.9KTL/30KTL/36KTL/40KTL-M3 shall not exceed 1100 V DC under any circumstance. 5. The DC input voltage of the SUN2000-20KTL-M3 shall not exceed 800 V DC under any circumstance. 6. Before installing DC input power cables, label the cable polarities to ensure correct cable connections. 7. If a DC input power cable is reversely connected and the DC switch is turned on, do not operate on the DC switch or the positive/negative connectors immediately. Otherwise, the device may be damaged. The caused device damage is not covered under any warranty. Wait until the night when solar irradiance declines and the PV string current drops to below 0.5 A. Then set the DC switch to the OFF position, remove the positive and negative connectors, and correct the polarity of the DC input power cable. 8. If the SUN2000 is used with an optimizer, the number of optimizers for a single PV string cannot exceed 25. 9. If the PV string is configured with an optimizer, check the cable polarity by referring to the smart PV optimizer quick guide. 1. Connect the DC power cables. Positive metal terminal Negative metal terminal PV-CZM-22100 Ensure that the cable cannot be pulled out after being crimped. Positive connector Negative connector Click Ensure that the cables are correctly connected. Use the wrench shown in the figure to tighten the locking nut. When the wrench slips during the tightening, the locking nut has been tightened. PV-MS-HZ Open-end wrench Click 7 4.5 (Optional) Installing the Smart Dongle · The Smart Dongle is not provided in standard configuration. · For details about how to operate the WLAN-FE Smart Dongle SDongleA-05, see SDongleA- 05 Quick Guide (WLAN-FE). · For details about how to operate the 4G Smart Dongle SDongleA-03, see SDongleA-03 Quick Guide (4G). · The quick guide is delivered with the Smart Dongle or can be obtained by scanning the QR codes. Smart Dongle port (4G/WLAN-FE) WLAN-FE 4G WLAN-FE Smart Dongle (WLAN Communication) WLAN-FE Smart Dongle (FE Communication) Install the network cable before installing the Smart Dongle on the solar inverter. 8 4G Smart Dongle · If your Smart Dongle is not equipped with a SIM card, prepare a standard SIM card (size: 25 mm x 15 mm) with the capacity greater than or equal to 64 KB. · When installing the SIM card, determine its installation direction based on the silk screen and arrow on the card slot. · Press the SIM card in place to lock it, indicating that the SIM card is correctly installed. · When removing the SIM card, push it inwards to eject it. When reinstalling the cover of the Smart Dongle, ensure that the buckle springs back in place. 4.6 Installing the Signal Cable · When laying out the signal cable, separate it from the power cable and keep it away from strong interference sources to avoid strong communication interference. · Ensure that the protective layer of the cable is inside the connector, that excess core wires are cut off from the protection layer, that the exposed core wire is totally inserted into the cable hole, and that the cable is connected securely. 9 COM Port Pin Definitions No. Definiti on Function 1 485A11 RS485 differential signal + RS485 3 485B1-1 differential signal 5 PE Ground point on the shield layer RS485 7 485A2 differential signal + RS485 9 485B2 differential signal 11 13 GND GND 15 DIN5 Rapid shutdown Description No. Used to cascade inverters or 2 connect to the SmartLogger. It can also connect 4 to an EMI. Definitio n 485A1-2 485B1-2 6 PE Connects to the RS485 signal 8 port on the power grid scheduling 10 power meter. 12 14 Supports AC NS protection shutdown, which can be used as a 16 reserved port for rapid shutdown signals. DIN1 DIN2 DIN3 DIN4 GND Function RS485 differential signal + RS485 differential signal Ground point on the shield layer Dry contact for power grid scheduling Description Used to cascade inverters or connect to the SmartLogger. It can also connect to an EMI. 10 Scenarios Where No Signal Cable Is Connected If no signal cable is required for the SUN2000, use waterproof plugs to block the wiring holes on the signal cable connector and connect the signal cable connector to the communications port on the SUN2000 to improve the waterproof performance of the SUN2000. (Optional) Connecting the Signal Cable 1. Connect the signal cable to the signal connector. 11 · Connect the RS485 communications cable to the solar inverter. If two or more solar inverters are cascaded, install the RS485 communications cable. · Connect the RS485 communications cable to the power meter. · Connect the power grid scheduling signal cable. · Connect the rapid shutdown signal cable. 12 2. Connect the signal cable connector to the communications port. Communications port (COM) 5 Verifying the Installation No. Acceptance Criteria 1 The solar inverter is installed correctly and securely. 2 The cables are routed properly as required by the customer. 3 The communications expansion module is installed correctly and securely. 4 Cable ties are evenly distributed and no burr exists. 5 The PE cable is connected correctly and securely. 6 The DC switch and all the switches connected to the solar inverter are set to the OFF position. 7 The AC output power cable, DC input power cables, and signal cable are connected correctly and securely. 8 Unused terminals and ports are locked by watertight caps. 9 The installation space is proper, and the installation environment is clean and tidy. 13 6 System Power-On Before 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. (Optional) Remove the locking screw beside the DC switch. Store the screws properly for future power-off maintenance. 3. Turn on the DC switch at the bottom of the solar inverter. 4. Observe the LED indicators to check the operating status of the solar inverter. Category Status (Blinking Slowly: On for 1s and then Off for 1s; Blinking Fast: On for 0.2s and Description then Off for 0.2s) Steady green Blinking green slowly Running indicator Blinking green slowly Off Off Blinking red fast Steady red Steady green The solar inverter is operating in grid-tied mode. Off The DC is on and the AC is off. Blinking green slowly Blinking green slowly Off Blinking red fast Steady red Both the DC and AC are on, and the solar inverter is not supplying power to the power grid. The DC is off and the AC is on. Both the DC and AC are off. DC environment alarm AC environment alarm Fault Communications indicator Blinking green fast Blinking green slowly Communication is in progress. Mobile phone access Off No communication Note: If LED1, LED2, and LED3 are steady red, the solar inverter is faulty and needs to be replaced. 14 7 System Commissioning · If the solar inverter is connected to the FusionSolar smart PV management system, the FusionSolar app is recommended. In areas (such as the UK) where the FusionSolar app is not available, or when a third-party management system is used, only the SUN2000 app can be used for commissioning. · Access the Huawei app store (http://appstore.huawei.com), search for FusionSolar or SUN2000, and download the app installation package. You can also scan the QR codes below to download the apps. FusionSolar App SUN2000 App · The screenshots are for reference only. The actual screens may vary. · Obtain the initial password for connecting to the solar inverter WLAN from the label on the side of the solar inverter. · Set the password at the first login. To ensure account security, change the password periodically and keep the new password in mind. Not changing the 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. 15 7.1 Scenario in Which Solar Inverters Are Connected to the FusionSolar Smart PV Management System 1. (Optional) Register an installer account. If you already have an installer account, skip this step. · Create the first installer account will generate a domain named after the company. · To create multiple installer accounts for a company, log in to the FusionSolar app and tap New User to create installer accounts. 16 2. Create a PV plant and a plant owner. 7.2 Scenario in Which Solar Inverters Are Connected to Other Management Systems 1. Open the SUN2000 app, scan the QR code of the solar inverter or manually connect to the WLAN hotspot to access the device commissioning screen. 2. Select installer and enter the login password. 3. Tap Log in to access the quick settings screen or solar inverter home screen. For details, see the FusionSolar App Quick Guide. During the FusionSolar app upgrade, scan the QR code to download the corresponding quick guide according to the downloaded app version. 17 7.3 Inverter Connected to Optimizers For details about how to add optimizers and the physical layout of optimizers, see SUN2000450W-P Smart PV Optimizer Quick Guide and FusionSolar App Quick Guide. You can scan the QR codes to obtain the documents. During the FusionSolar app upgrade, scan the QR code to download the corresponding quick guide according to the downloaded app version. SUN2000-450W-P 8 FAQ: How Do I Reset the Password? 1. Check that the AC and DC power supplies to the solar inverter are connected simultaneously, and that the and indicators are steady green or blink slowly for more than 3 minutes. 2. Turn off the AC switch, set the DC switch at the bottom of the solar inverter to OFF, and wait until all indicators on the solar inverter panel turn off. 3. Complete the following operations within 3 minutes: a. Turn on the AC switch and wait until the indicator blinks. b. Turn off the AC switch and wait until all indicators on the solar inverter panel turn off. c. Turn on the AC switch and wait until all LED indicators on the inverter panel blink and turn off after about 30s. 4. Wait until the three indicators on the inverter panel blink green quickly and then blink red quickly, indicating that the password has been restored. 5. Reset the password within 10 minutes. (If no operation is performed within 10 minutes, all parameters of the solar inverter remain the same as those before the reset.) a. Wait until the indicator blinks. b. Obtain the initial WLAN hotspot name (SSID) and initial password (PSW) from the label on the side of the solar inverter to connect to the app. c. On the login page, set a new login password and log in to the app. 6. Set router and management system parameters to implement remote management. You are advised to reset the password in the morning or at night when the solar irradiance is low. 18 Huawei Technologies Co., Ltd. Huawei Industrial Base, Bantian, Longgang Shenzhen 518129 People's Republic of China solar.huawei.comMicrosoft PowerPoint 2013 Microsoft PowerPoint 2013