Goodwe SMT Series User Manual

Grid-tied pv inverter

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User Manual

Grid-Tied PV Inverter

SMT Series

(75-80kW)

V1.0-2024-06-10

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Summary of Contents for Goodwe SMT Series

Page 1 User Manual Grid-Tied PV Inverter SMT Series (75-80kW) V1.0-2024-06-10...
Page 2 Copyright ©GoodWe Technologies Co., Ltd., 2024. All rights reserved No part of this manual can be reproduced or transmitted to the public platform in any form or by any means without the prior written authorization of GoodWe Technologies Co., Ltd. Trademarks and other GOODWE trademarks are trademarks of GoodWe Technologies Co., Ltd.
Page 3 CONTENT User Manual V1.0-2024-06-10 CONTENT 1 About This Manual ............1 1.1 Applicable Model ..................1 1.2 Target Audience ..................1 1.3 Symbol Definition ..................1 2 Safety Precaution ............1 2.1 General Safety ................... 2 2.2 DC Side ....................... 2 2.3 AC Side ....................... 3 2.4 Inverter Installation ...................
Page 4 CONTENT User Manual V1.0-2024-06-10 6.1 Safety Precautions .................. 17 6.2 Connecting the PE Cable ................ 19 6.3 Connecting the AC Output Cable ............19 6.4 Connecting the PV Input Cable ............... 21 6.5 Communication ..................23 6.5.1 RS485 Communication Networking ..............23 6.5.2 Power Export Limit ...................23 6.5.3 Connecting the Communication Cable ............26 6.5.4 Installing the Smart Dongle ................28...
Page 5 All the installers and users have to be familiar with the product features, functions, and safety precautions. This manual is subject to update without notice. For more product details and latest documents, visit www.en.goodwe.com. 1.1 Applicable Model...
Page 6 For more warranty details, visit : • https://en.goodwe.com/warranty.asp. 2.2 DC Side DANGER • Connect the DC cables using the provided DC connectors and terminals. The manufacturer shall not be liable for equipment damage if other connectors or terminals are used.
Page 7 02 Safety Precaution User Manual V1.0-2024-06-10 2.3 AC Side WARNING • The voltage and frequency at the connecting point should meet the on-grid requirements. • An additional protective device like the circuit breaker or fuse is recommended on the AC side.
Page 8 Power Inverter Circuit Transformer Utility Breaker distribution Grid cabinet PV String Model Description GW80K-SMT Referring to Explanation Brand code GW： GoodWe Rated power 75K： the rated power is 75kW 80K： the rated power is 80kW Series code SMT: SMT Series...
Page 9 03 Product Introduction User Manual V1.0-2024-06-10 3.2 Circuit Diagram DC Switch 1 MPPT1 MPPT2 DC/AC MPPT3 Inverter Filter Filter MPPT4 Circuit Filter MPPT5 MPPT6 DC Switch2 AC SPD Current Current DC SPD Monitoring Output Monitoring Disconnecting Relay...
Page 10 03 Product Introduction User Manual V1.0-2024-06-10 3.3 Supported Grid Types NOTICE For the TT grid structure, the effective value of the voltage between the neutral wire and the ground wire must be less than 20V. The grid structures supported by the inverters are TN-S, TN-C,TN-C-S, TT, IT, as shown in the figure below: TN-S TN-C...
Page 11 03 Product Introduction User Manual V1.0-2024-06-10 3.4 Appearance 3.4.1 Parts Parts Description Indicator Indicates working state of the inverter. Button (optional) To control contents displayed on the screen. LCD (optional) To check the parameters of the inverter. DC Input Port To connect the PV module DC input cables.
Page 12 03 Product Introduction User Manual V1.0-2024-06-10 3.4.2 Dimensions 700 mm 260 mm 3.4.3 LED Indicators Indicator Status Description ON = THE INVERTER IS POWERED ON OFF = THE INVERTER IS POWERED OFF ON = THE INVERTER IS FEEDING POWER TO THE GRID OFF = THE INVERTER IS NOT FEEDING POWERTO THE GRID SINGLE SLOW FLASH = SELF CHECK BEFORE CONNECTING TO THE GRID...
Page 13 03 Product Introduction User Manual V1.0-2024-06-10 3.5 Functionalities AFCI (Optional) Inverters with AFCI functionality has built-in current sensors to detect the high frequency current signals and decide whether an electric arc occurs. If there is, the inverter is able for self- protection automatically.
Page 14 03 Product Introduction User Manual V1.0-2024-06-10 3.6 Inverter Operation Mode Waiting Mode Fault Mode Upgrading Mode Grid-tied Mode Self-check Mode Mode Description Waiting Waiting stage after the inverter is powered on. • When the conditions are met, the inverter enters the self-check mode. Mode •...
Page 15 03 Product Introduction User Manual V1.0-2024-06-10 Nameplate The nameplate is for reference only. Goodwe trademark, product type, and product model Technical parameters Safety symbols and certification marks Contact information and serial number...
Page 16 04 Check and Storage User Manual V1.0-2024-06-10 4 Check and Storage 4.1 Check Before Receiving Check the following items before receiving the product. 1. Check the outer packing box for damage, such as holes, cracks, deformation, and others signs of equipment damage. Do not unpack the package and contact the supplier as soon as possible if any damage is found.
Page 17 04 Check and Storage User Manual V1.0-2024-06-10 4.3 Storage If the equipment is not to be installed or used immediately, please ensure that the storage environment meets the following requirements: 1. Do not unpack the outer package or throw the desiccant away. 2.
Page 18 05 Installation User Manual V1.0-2024-06-10 Children No Touch ≥600 mm ≥100 mm ≥1000 mm ≥700 mm ≥1000mm ≥700 mm ≥600 mm -30~60℃ ALT: 4000m IP66 0~100% Mounting Support Requirements • The mounting support shall be nonflammable and fireproof. • Make sure that the support surface is solid enough to bear the product weight load. Installation Angle Requirements •...
Page 19 05 Installation User Manual V1.0-2024-06-10 Installation Tool Requirements The following tools are recommended when installing the equipment. Use other auxiliary tools on site if necessary. M10/M8 /M12 Safety shoes Socket wrench Goggles Safety gloves Dust mask Wire cutters Wire stripper Hammer drill Heat gun Terminal...
Page 20 05 Installation User Manual V1.0-2024-06-10 5.2 Inverter Installation 5.2.1 Moving the Inverter CAUTION Move the inverter to the site before installation. Follow the instructions below to avoid personal injury or equipment damage. 1. Consider the weight of the equipment before moving it. Assign enough personnel to move the equipment to avoid personal injury.
Page 21 05 Installation User Manual V1.0-2024-06-10 Installing the Inverter Step 1: Grab the handles to lift the inverter, or hoist the inverter, and place it onto the mounting plate. Step 2 : Secure the mounting plate and the inverter. By hoisting 2 - 3N·m By hand lifting 6 Electrical Connection...
Page 22 06 Electrical Connection User Manual V1.0-2024-06-10 Cable Requirement Cable Specification Cable Type Outer Diameter Cross-sectional Area (mm) 11 - 23 PE cable Copper Outdoors cable ≥ S/2* • Copper core : 70 ~ 240 • Aluminum alloy cable or Multi-core output copper-clad aluminum 28 - 53...
Page 23 06 Electrical Connection User Manual V1.0-2024-06-10 6.2 Connecting the PE Cable WARNING • The PE cable connected to the enclosure of the inverter cannot replace the PE cable connected to the AC output port. Both PE cables must be securely connected. •...
Page 24 06 Electrical Connection User Manual V1.0-2024-06-10 WARNING • Make sure to connect the AC cable wires to the corresponding terminals on the inverter to avoid any damage to the equipment • Make sure that the whole stripped length of the wire is inserted into the terminal hole. No part of the wire core should be visible.
Page 25 06 Electrical Connection User Manual V1.0-2024-06-10 6.4 Connecting the PV Input Cable DANGER • Do not connect the same PV string to multiple inverters, as this may cause damage to the inverter. • The PV strings cannot be grounded. Ensure the minimum isolation resistance of the PV string to the ground meets the minimum isolation resistance requirements before connecting the PV string to the inverter.
Page 26 06 Electrical Connection User Manual V1.0-2024-06-10 Connecting the DC Input Cable Click Step 1 Prepare DC cables. Step 2 Crimp the DC cable and assemble the PV connectors. Step 3 Fasten the PV connector. Step 4 Measure the DC input voltage. Step 5 Plug the PV connectors into the DC input terminals.
Page 27 06 Electrical Connection User Manual V1.0-2024-06-10 6.5 Communication 6.5.1 RS485 Communication Networking NOTICE • If multiple inverters are connected to the EzLogger 3000C for networking, the maximum number of inverters per COM port of the EzLogger 3000C is 20, and the total length of the connecting cable should not exceed 1000m.
Page 28 06 Electrical Connection User Manual V1.0-2024-06-10 WARNING 1. Install the CT near the grid connection point, and before all the loads. Make sure the arrow on the CT points towards the grid. If the arrow points towards the loads, the Power Export Limit function will not work properly and will trigger an alarm at the inverter.
Page 29 06 Electrical Connection User Manual V1.0-2024-06-10 Power export limit of single inveter with GM330 Load Circuit Breaker Inverter Grid Circuit Meter Circuit Breaker Breaker GM330 RS485_A2 RS485_B2 EzLogger 3000C+GM330 Power export limit of multi inveters with Load Inverter 1 Inverter N ..
Page 30 06 Electrical Connection User Manual V1.0-2024-06-10 6.5.3 Connecting the Communication Cable NOTICE • The communication port can be configured differently according to the regulatory requirements in different regions. • The remote shutdown function is diabled in default. Enable it via SolarGo App if needed. Detailed steps, refer to SolarGo App User Manual.
Page 31 06 Electrical Connection User Manual V1.0-2024-06-10 Function Definition Description DI_4 (K1) DI_5 (K2) To connect RCR device. (For European DI_6 (K3) models only) DI_7 (K4) No. 8 No. 7 DI_7 No. 6 DI_6 No. 5 DI_5 100% No. 4 DI_4 Step 1: Prepare the communication cable.
Page 32 Set inverter parameters, check running information and fault information, and observe system status in time via the smartphone or web pages. NOTICE Refer to the delivered smart dongle user manual to get more introduction to the module. For more detailed information, visit https://en.goodwe.com/.
Page 33 07 Equipment Commissioning User Manual V1.0-2024-06-10 7 Equipment Commissioning 7.1 Checks before Power On Check Item The inverter is firmly installed in a clean place where is well-ventilated and easy to operate. The PE cable, DC input cable, AC output cable, and communication cable are connected correctly and securely.
Page 34 08 System Commissioning User Manual V1.0-2024-06-10 8 System Commissioning 8.1 Indicators and Button Indicator Status Description ON = EQUIPMENT POWER ON OFF = EQUIPMENT POWER OFF ON = THE INVERTER IS FEEDING POWER OFF = THE INVERTER IS NOT FEEDING POWER SINGLE SLOW FLASH = SELF CHECK BEFORE CONNECTING TO THE GRID SINGLE FLASH = CONNECTING TO THE GRID...
Page 35 08 System Commissioning User Manual V1.0-2024-06-10 8.2 Setting Inverter Parameters via LCD NOTICE • The screen shots are for reference only. The actual display may differ. • The name, range, and default value of the parameters is subject to change or adjust. The actual display prevails.
Page 36 08 System Commissioning User Manual V1.0-2024-06-10 First level menu Second level menu Long press Normal for 2s Set language Pac=xxx W Set Safety Short press Short press xxxx-xx-xx Set Date xx:xx:xx Set Time Short press Short press Vpv1-3(4-6/7-9/10)= W/L Reset xx/xx/xxV W/L Reload Short press...
Page 37 08 System Commissioning User Manual V1.0-2024-06-10 8.2.2 Inverter Parameter Introduction Parameters Description Normal Home page. Indicates the real-time power of the inverter. pac=xxxW 2022-02-14 Check the time of the country/region. 09:01:10 VPv1 Check the DC input voltage of the inverter. IPv1 Check the DC input current of the inverter.
Page 38 08 System Commissioning User Manual V1.0-2024-06-10 Parameters Description With LVRT on, the inverter will stay connected with the utility grid LVRT after a short-term utility grid low voltage exception occurs. With HVRT on, the inverter will stay connected with the utility grid HVRT after a short-term utility grid high voltage exception occurs.
Page 39 2. Set grid parameters and communication parameters of the inverter. 3. Maintain the equipment. For more details, refer to the SolarGo APP User Manual. Scan the QR code or visit https:// en.goodwe.com/Ftp/EN/Downloads/User%20Manual/GW_SolarGo_User%20Manual-EN.pdf get the user manual. SolarGo App SolarGo App User Manual 8.4 Monitoring via SEMS Portal...
Page 40 09 Maintenance User Manual V1.0-2024-06-10 9 Maintenance 9.1 Power Off the Inverter DANGER • Power off the inverter before operations and maintenance. Otherwise, the inverter may be damaged or electric shocks may occur. • Delayed discharge. Wait until the components are discharged after power off. Step 1 (Recommended) send a command to the inverter for halting the grid connecting via SolarGo App Step 2 Turn off the AC switch between the inverter and the utility grid.
Page 41 09 Maintenance User Manual V1.0-2024-06-10 9.4 Troubleshooting Perform troubleshooting according to the following methods. Contact the after-sales service if these methods do not work. Collect the information below before contacting the after-sales service, so tha the problems can be solved quickly. 1.
Page 42 09 Maintenance User Manual V1.0-2024-06-10 No. Fault Cause Solutions If occurs occasionaly, it may be caused a short term grid abnormity. The inverter will recover automatically after the grid is back to normal operation. If it occurs frequently, please check whether the grid voltage is within the allowed range.
Page 43 09 Maintenance User Manual V1.0-2024-06-10 No. Fault Cause Solutions If occurs occasionaly, it may be caused a short term grid abnormity. The inverter will recover automatically after the grid is back to normal operation. If it occurs frequently, please check whether the grid voltage is within The frequency of the grid the allowed range.
Page 44 09 Maintenance User Manual V1.0-2024-06-10 No. Fault Cause Solutions Abnormal grid, and If occurs occasionaly, it may the abnormal duratin be caused a short term grid LVRT exceeds the specified abnormity. The inverter will recover Undervoltage value of local high automatically after the grid is back to voltage safety regulation.
Page 45 09 Maintenance User Manual V1.0-2024-06-10 No. Fault Cause Solutions 1. The PE cable is not 1. Please confirm if the PE cable of the connected. inverter is not connected properly. 2. When ground the PV 2. Under the scenerio of PV string Abnormal Ground.
Page 46 09 Maintenance User Manual V1.0-2024-06-10 No. Fault Cause Solutions AC HCT Check Abnormal sampling of abnormal AC HCT GFCI HCT Check Abnormal sampling of abnormal GFCI HCT 1. The relay is abnormal or short-circuited. 2. The control circuit is abnormal. Relay Check 3.
Page 47 09 Maintenance User Manual V1.0-2024-06-10 No. Fault Cause Solutions The reference circuit is 1.5V Ref abnormal abnormal. The reference circuit is 0.3V Ref abnormal abnormal. BUS Overvoltage P-BUS Overvoltage N-BUS Overvoltage 1. The PV voltage is too high. Overvoltage(Slave 2. The sampling of the Disconnect the AC output switch and CPU 1) inverter BUS voltage is...
Page 48 09 Maintenance User Manual V1.0-2024-06-10 No. Fault Cause Solutions 1. If the problem occurs occasionally, the PV voltage Low reason might be abnormal sun light. The inverter will recover automatically without Sun light is weak or manual intervention. changing abnormally. BUS voltage Low 2.
Page 49 09 Maintenance User Manual V1.0-2024-06-10 9.5 Routine Maintenance DANGER Power off the inverter before operations and maintenance. Otherwise, the inverter may be damaged or electric shocks may occur. Maintaining Item Maintaining Method Maintaining Period Check the heat sink, air intake, and air System Clean Once 6-12 months outlet for foreign matter or dust.
Page 50 10 Technical Parameters User Manual V1.0-2024-06-10 10 Technical Parameters Technical Data GW80K-SMT GW75K-SMT Input(DC) Max.Input Power (kW) 112.5 Max.Input Voltage(V) 1100 1100 MPPT Operating Voltage Range (V) 180~1000 MPPT Voltage Range at Nominal Power (V) 500~850 Start-up Voltage (V) Nominal Input Voltage (V) Max.
Page 51 10 Technical Parameters User Manual V1.0-2024-06-10 Technical Data GW80K-SMT GW75K-SMT Maximum Output Overcurrent Protection Efficiency Max. Efficiency 98.6% 98.6% European Efficiency 98.1% 98.1% Protection PV String Current Monitoring Integrated PV Insulation Resistance Detection Integrated Residual Current Monitoring Integrated PV Reverse Polarity Protection Integrated Anti-islanding Protection Integrated...
Page 52 10 Technical Parameters User Manual V1.0-2024-06-10 Technical Data GW80K-SMT GW75K-SMT Weight (Kg) Dimension (W×H×D mm) 700 x 550 x 260 Noise Emission (dB) <65 Topology Non-isolated Self-consumption at Night (W) <1 Ingress Protection Rating IP66 Anti-corrosion Class C4, C5 (Optional) DC Connector MC4 (4~6mm²) AC Connector...
Page 53 10 Technical Parameters User Manual V1.0-2024-06-10 Overvoltage levels: Overvoltage I: Devices connected to the circuit which can limit instantaneous overvoltage to a relatively low level. Overvoltage II: Energy-consuming devices powered by fixed power distribution equipment, including appliances, portable tools, and other household and similar equipment. Overvoltage III is also applicable if there are special requirements for the reliability and applicability of the equipment.
Page 54 GoodWe Website GoodWe Technologies Co., Ltd. No. 90 Zijin Rd., New District, Suzhou, 215011, China www.goodwe.com Local Contacts service@goodwe.com...

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