Goodwe SMT Series User Manual
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Goodwe SMT Series User Manual

Grid-tied pv inverter
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User Manual
Grid-Tied PV Inverter
SMT Series
V1.0-2022-08-30

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Summary of Contents for Goodwe SMT Series

  • Page 1 User Manual Grid-Tied PV Inverter SMT Series V1.0-2022-08-30...
  • Page 2 GoodWe Technologies Co., Ltd. Trademarks and other GoodWe trademarks are trademarks of GoodWe Company. All other trademarks or registered trademarks mentioned in this manual are owned by GoodWe Technologies Co., Ltd. Notice The information in this user manual is subject to change due to product updates or other reasons.

  • Page 3: Table Of Contents

    Content User Manual V1.0-2022-08-30 CONTENT 1 About This Manual ���������������������������������������������������������������������������� 1 1.1 Applicable Model ........................1 1.2 Target Audience ........................1 1.3 Symbol Definition ........................2 1.4 Updates ............................2 2 IMPORTANT SAFETY INSTRUCTIONS �������������������������������������������������� 3 2.1 General Safety ..........................3 2.2 PV String Safety ........................3 2.3 Inverter Safety ..........................4 2.4 Personnel Requirements ......................4 3 Product Introduction ������������������������������������������������������������������������...
  • Page 4 User Manual V1.0-2022-08-30 Content 6.6 Connecting the AC Cable ....................... 28 6.7 Connecting the Communication Cable ................. 31 6.8 Installing the WiFi Module ..................... 33 6.9 Installing the USB Cable ......................33 6.10 Opening the wiring cover ..................... 34 7 Equipment Commissioning ��������������������������������������������������������������� 35 7.1 Check Before Power ON ......................

  • Page 5: About This Manual

    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.goodwe.com. 1.1 Applicable Model This manual applies to the listed inverters below (SMT for short): •...

  • Page 6: Symbol Definition

    01 About This Manual User Manual V1.0-2022-08-30 1.3 Symbol Definition Different levels of warning messages in this manual are defined as follows: DANGER Indicates a high-level hazard that, if not avoided, will result in death or serious injury. WARNING Indicates a medium-level hazard that, if not avoided, could result in death or serious injury. CAUTION Indicates a low-level hazard that, if not avoided, could result in minor or moderate injury.

  • Page 7: Important Safety Instructions

    • Strictly follow the installation, operation, and configuration instructions in this manual. The manufacturer shall not be liable for equipment damage or personal injury if you do not follow the instructions. Visit https://en.goodwe.com/warranty to get more information about product warranty.

  • Page 8: Inverter Safety

    02 Safety Precaution User Manual V1.0-2022-08-30 2.3 Inverter Safety WARNING • The voltage and frequency at the connecting point should meet the on-grid requirements. • Additional protective devices like circuit breakers or fuses are recommended on the AC side. Specification of the protective device should be at least 1.25 times the rated AC output rated current.

  • Page 9: Product Introduction

    This manual applies to the listed inverters below: • GW50K-SMT-US • GW60K-SMT-US Model description Referring to Explanation Brand Code GW: GoodWe Rated Power • 50K: the rated power is 50kW. • 60K: the rated power is 60kW. Series SMT SMT Series Area Code US: North America...

  • Page 10: Application Scenarios

    Inverter SMT series inverters. AC breaker It is recommended to use three phase AC breaker no less than 120A which conforms to local regulations. Make sure the inverter can disconnect with the grid safely under abnormal situations.
  • Page 11 User Manual V1.0-2022-08-30 03 Product Introduction WARNING • Only qualified personnel shall be permitted to set or change the setting of the maximum operating current of the PCS. The maximum PCS operating current setting shall not exceed the busbar rating or conductor ampacity of any PCS controlled busbar or conductor. •...
  • Page 12 03 Product Introduction User Manual V1.0-2022-08-30 Circuit Diagram The circuit diagram of GW50K-SMT-US and GW60K-SMT-US is as follows.
  • Page 13 User Manual V1.0-2022-08-30 03 Product Introduction Supported Grid Types SMT series GW50K-SMT-US, and GW60K-SMT-US support four different types (TNS,TN-C,TN-C-S, TT) of grid. TN-S TN-C TN-C-S Transformer Transformer Transformer Transformer Inverter Inverter Inverter Inverter When neutral wire of inverter is not connected to grid, "Delta Grid" should be selected in grid type(IT) setting page.

  • Page 14: Inverter Operation Mode

    03 Product Introduction User Manual V1.0-2022-08-30 3.3.3 Inverter operation mode Self-check mode Waiting mode Fault mode Grid-Tied mode Parts Description Waiting mode Waiting stage after the inverter is powered on. • When the conditions are met, it enters the self-check mode.

  • Page 15: Functionality

    User Manual V1.0-2022-08-30 03 Product Introduction 3.4 Functionality Power derating For a safe operation, the inverter will automatically reduce the output power when the operating environment is not ideal. The following are the factors that may occur power derating. Please try to avoid them during usage.

  • Page 16: Appearance

    03 Product Introduction User Manual V1.0-2022-08-30 3.5 Appearance 3.5.1 Parts 11 13 Parts Description LED Indicator Indicate working status of the inverter. Connection unit The compartment collects the input and output cables of the inverter. Mounting Plate Hang the inverter on the wall. Handles Install the inverter with the handles.

  • Page 17: Dimensions

    User Manual V1.0-2022-08-30 03 Product Introduction 3.5.2 Dimensions 3.5.3 Indicators Indicator Status Description ON = Equipment power on. OFF = Equipment power off. ON = The inverter is feeding power. OFF = The inverter is not feeding power at the moment. SINGLE SLOW FLASH = Self check before connecting to the grid.

  • Page 18: Nameplate

    03 Product Introduction User Manual V1.0-2022-08-30 3.5.4 Nameplate The nameplate is for reference only. Product: Grid-Tied PV Inverter Product type, and product model Model : GW***-SMT -US Vmax PV: ****Vd .c. MPPT voltage range: ***...***Vd.c. Max. PV current: ** **Ad .c. Isc PV: ****Ad .c.

  • Page 19: Check And Storage

    User Manual V1.0-2022-08-30 04 Check and Storage 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 other signs of equipment damage. Do not unpack the package and contact the supplier as soon as possible if any damage is found.

  • Page 20: Storage

    04 Check and Storage User Manual V1.0-2022-08-30 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 21: Installation

    User Manual V1.0-2022-08-30 05 Installation 5 Installation 5.1 Installation Requirements Installation Environment Requirements 1. Do not install the equipment in a place near flammable, explosive, or corrosive materials. 2. Do not install the equipment in a place that is easy to touch, especially within children’s reach. High temperature exists when the equipment is working.
  • Page 22 05 Installation User Manual V1.0-2022-08-30 Mounting Support Requirements • The mounting support shall be nonflammable and fireproof. • Install the equipment on a surface that is solid enough to bear the inverter weight. • Do not install the product on the support with poor sound insulation to avoid the noise generated by the working product, which may annoy the residents nearby.
  • Page 23 User Manual V1.0-2022-08-30 05 Installation Installation Tool Requirements The following tools are recommended when installing the equipment. Use other auxiliary tools on site if necessary. Safety Safety Crimping Goggles Dust mask shoes gloves tool Diagonal Wire Hammer DC terminal Multimeter pliers stripper drill...

  • Page 24: Inverter Installation

    05 Installation User Manual V1.0-2022-08-30 5.2 Inverter Installation 5.2.1 Moving the Inverter CAUTION • Transportation, moving, and installation shall meet local laws, regulations, and related requirements. • Move the inverter to the site before installation. Follow the instructions below to avoid personal injury or equipment damage.
  • Page 25 User Manual V1.0-2022-08-30 05 Installation Installing the mounting plate Mounting on the wall Mounting on the plate(Contact the local sales center to purchase the bracket.) Mounting on the plate(If you want other brackets, please prepare them by yourself.)
  • Page 26 05 Installation User Manual V1.0-2022-08-30 Installing the Inverter 1.6~2N·m...

  • Page 27: Electrical Connection

    User Manual V1.0-2022-08-30 06 Electrical Connection 6 Electrical Connection 6.1 Safety Precaution DANGER INSTRUCTIONS PERTAINING TO A RISK OF FIRE OR ELECTRIC SHOCK • Perform electrical connections, including operations, cables, and component specifications in compliance with local laws and regulations ANSI/NFPA 70. •...

  • Page 28: Preparations Before Cable Connections

    06 Electrical Connection User Manual V1.0-2022-08-30 6.2 Preparations Before Cable Connections 6.2.1 Connection Unit Introduction AC output terminal PE terminal DC input terminal Grounding busbar Communication terminal for PV brackets [1]: GW50K-SMT-US: 5 MPPT input. GW60K-SMT-US: 6 MPPT input. 6.2.2 Conduit Hole Dimensions WARNING •...

  • Page 29: Removing The Enclosure Cover

    User Manual V1.0-2022-08-30 06 Electrical Connection 6.3 Removing the Enclosure Cover Notice • Remove the enclosure cover of the electrical connection unit using the delivered Allen wrench. Retain the wrench and screws properly for future use. • If it is necessary to remove the cover on rainy and snowy days, you have to take measures to protect the compartment cavity from rain and snow.

  • Page 30: Optional) Connecting The Pe Cable

    06 Electrical Connection User Manual V1.0-2022-08-30 6.4 (Optional) 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 of the two PE cables must be securely connected. •...
  • Page 31 User Manual V1.0-2022-08-30 06 Electrical Connection WARNING • The PV strings cannot be grounded. Ensure the minimum isolation resistance of the PV string to the ground meets the minimum isolation resistance requirements (R ﹥ 50kΩ) before connecting the PV string to the inverter. If the isolation resistance value is ≤ 50kΩ, the inverter will trigger an alarm.

  • Page 32: Connecting The Ac Cable

    06 Electrical Connection User Manual V1.0-2022-08-30 1.2~1.5N·m 1.2~1.5N·m 6.6 Connecting the AC Cable WARNING • Do not connect loads between the inverter and the AC switch directly connected to the inverter. • Connect the AC cables to the corresponding terminals like L1, L2, L3, N, and grounding busbar.
  • Page 33 User Manual V1.0-2022-08-30 06 Electrical Connection Notice • Install one AC circuit breaker for each inverter. Multiple inverters cannot share one AC circuit breaker. • An AC circuit breaker shall be installed on the AC side to make sure that the inverter can safely disconnect the grid when an exception happens.
  • Page 34 06 Electrical Connection User Manual V1.0-2022-08-30 5~8N·m 3~5N·m...

  • Page 35: Connecting The Communication Cable

    User Manual V1.0-2022-08-30 06 Electrical Connection 6.7 Connecting the Communication Cable Notice • Connect Smart Meter when the anti reverse current functionality is required. Pay attention to CT connecting direction during the meter cable connection. It will display CT reverse fault on the inverter if it is the opposite direction.
  • Page 36 06 Electrical Connection User Manual V1.0-2022-08-30 6mm-7mm (0.23in-0.27in) 25mm (0.98in) RS485 RS485 A RS485 B RS485 A RS485 B Meter A Meter B 0.3~0.4N·m...

  • Page 37: Installing The Wifi Module

    NOTICE • Refer to the delivered communication module user manual to get more introduction to the module. For more detailed information, visit https://en.goodwe.com/. • Remove the communication module using the unlock tool. The manufacturer shall not be liable for the port damage if the module is removed without the unlock tool.

  • Page 38: Opening The Wiring Cover

    06 Electrical Connection User Manual V1.0-2022-08-30 6.10 Opening the Cover of Wiring Box NOTICE • Check whether the wiring is correct and firm after the connection. Clean the unnecessary stuff out of the box. • Install the cover of wiring box to ensure the inverter’s waterproof function after the electrical connection.

  • Page 39: Equipment Commissioning

    User Manual V1.0-2022-08-30 07 Equipment Commissioning 7 Equipment Commissioning 7.1 Check Before Power ON Check Item The product is firmly installed at a clean place that is well-ventilated and easy-to- operate. The PE, DC input, AC output, and communication cables are connected correctly and securely.

  • Page 40: System Commissioning

    08 System Commissioning User Manual V1.0-2022-08-30 8 System Commissioning 8.1 Indicators and Buttons Indicator Status Description ON = Equipment power on. OFF = Equipment power off. ON = The inverter is feeding power. OFF = The inverter is not feeding power at the moment. SINGLE SLOW FLASH = Self check before connecting to the grid.

  • Page 41: Setting Inverter Parameters Via App

    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 8.3 Monitoring via SEMS Portal...

  • Page 42: Maintenance

    09 Maintenance User Manual V1.0-2022-08-30 9 Maintenance 9.1 Power Off the Inverter DANGER INSTRUCTIONS PERTAINING TO A RISK OF FIRE OR ELECTRIC SHOCK • Power off the inverter before operations and maintenance. Otherwise, the inverter may be damaged or electric shocks may occur. •...

  • Page 43: Troubleshooting

    User Manual V1.0-2022-08-30 09 Maintenance 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 that the problems can be solved quickly. 1.
  • Page 44 09 Maintenance User Manual V1.0-2022-08-30 Fault Cause Solutions 1. If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal. 2. If the problem occurs frequently, check The grid voltage whether the grid voltage is within the is lower than...
  • Page 45 User Manual V1.0-2022-08-30 09 Maintenance Fault Cause Solutions 1. If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal. Utility grid 2. If the problem occurs frequently, check exception.
  • Page 46 09 Maintenance User Manual V1.0-2022-08-30 Fault Cause Solutions 1. The PV string is short-circuited 1. Check whether the resistance of the PV to PE. string to PE exceeds 50kΩ. If no, check the 2. The PV system short circuit point. Low Insulation is in a moist 2.
  • Page 47 User Manual V1.0-2022-08-30 09 Maintenance Fault Cause Solutions 1. The relay is abnormal or short-circuited. 2. The control circuit is Disconnect the AC output switch and DC input Relay Check abnormal. switch, then connect them 5 minutes later. abnormal 3. The AC cable Contact the dealer or the after-sales service if connection the problem persists.
  • Page 48 09 Maintenance User Manual V1.0-2022-08-30 Fault Cause Solutions Disconnect the AC output switch and DC input 1.5V Ref Reference circuit switch, then connect them 5 minutes later. Contact the dealer or the after-sales service if abnormal fault the problem persists. 1.
  • Page 49 User Manual V1.0-2022-08-30 09 Maintenance Fault Cause Solutions Disconnect the AC output switch and DC input BUS Soft Start The boost driven switch, then connect them 5 minutes later. Contact the dealer or the after-sales service if Failure circuit is abnormal. the problem persists.

  • Page 50: Routine Maintenance

    09 Maintenance User Manual V1.0-2022-08-30 Fault Cause Solutions 1. The fan power supply is Disconnect the AC output switch and DC input abnormal. External Fan switch, then connect them 5 minutes later. 2. Mechanical Contact the dealer or the after-sales service if abnormal exception.

  • Page 51: Technical Parameters

    User Manual V1.0-2022-08-30 10 Technical Parameters 10 Technical Parameters Technical Data GW50K-SMT-US GW60K-SMT-US Input Max.Input Power (kW) Max.Input Voltage(V) 1000 MPPT Operating Voltage Range (V) 180~980 MPPT Voltage Range at Nominal 550~850 Power (V) Start-up Voltage (V) Nominal Input Voltage (V) Max.
  • Page 52 10 Technical Parameters User Manual V1.0-2022-08-30 Technical Data GW50K-SMT-US GW60K-SMT-US Maximum Output Overcurrent Protection (A) Efficiency Max. Efficiency 98.5% 98.5% European Efficiency 98.2% 98.2% Protection PV String Current Monitoring Integrated Internal Humidity Monitoring Integrated PV Insulation Resistance Detection Integrated Residual Current Monitoring Integrated PV Reverse Polarity Protection Integrated...
  • Page 53 User Manual V1.0-2022-08-30 10 Technical Parameters Technical Data GW50K-SMT-US GW60K-SMT-US 70.0 Weight (Kg) 154.3lbs 520 x 990 x 220(mm) Dimension (W×H×D) 20.5 x 39.0 x 8.7(in) Noise Emission (dB) ﹤ 65 Topology Non-isolated Self-consumption at Night (W) ﹤ 15 Ingress Protection Rating TYPE 4X Anti-corrosion Class C5(Optional)

  • Page 54: Appendix

    11 Appendix User Manual V1.0-2022-08-30 11 Appendix 11.1 Inverter Parameter Accuracy For parameter, which used in grid support and protection function, adjustable requirement of CA Rule 21, HECO 14H and IEEE1547, the relevant explanations and setting methods can obtain by reading, ﹤Parameter Adjustable Method Of Grid Support Utility Interactive Inverter﹥, the document can be obtained by contacting the after-sales.
  • Page 55 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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