Goodwe UT Series User Manual
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Goodwe UT Series User Manual

Goodwe UT Series User Manual

Grid-tied pv inverter
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User Manual
Grid-Tied PV Inverter
UT Series
V1.2-2024-07-19

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Summary of Contents for Goodwe UT Series

  • Page 1 User Manual Grid-Tied PV Inverter UT Series V1.2-2024-07-19...
  • 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: Table Of Contents

    Content User Manual V1.2-2024-07-19 CONTENT 1 About This Manual ..............1 1.1 Applicable Model ..................1 1.2 Target Audience ...................1 1.3 Symbol Definition ..................1 2 Safety Precaution ..............2 2.1 General Safety .....................2 2.2 PV String Safety ...................2 2.3 Inverter Safety .....................3 2.4 Personnel Requirements ................3 2.5 EU Declaration of Conformity ..............4 3 Product Introduction .............5 3.1 Product Overview ..................5...
  • Page 4 User Manual V1.2-2024-07-19 CONTENT 6.1 Safety Precaution ..................22 6.2 Connecting the PE cable ................24 6.3 Connecting the PV Input Cable ............... 24 6.4 Connecting the AC Output Cable ............. 26 6.5 Communication Connection ..............30 6.5.1 Connecting RS485 Communication Cable ............30 6.5.2 Connecting PLC Communication Cable ............

  • 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 https://en.goodwe.com. 1.1 Applicable Model...

  • Page 6: Safety Precaution

    • 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. For more warranty details, please visit https://en.goodwe.com/ warranty. 2.2 PV String Safety DANGER •...

  • Page 7: Inverter Safety

    02 Safety Precaution User Manual V1.2-2024-07-19 2.3 Inverter Safety WARNING • The voltage and frequency at the connection point meet the inverter grid connection requirements. • Additional protective devices like circuit breakers or fuses are recommended on the AC side. Specification of the protective device should be at least 1.6 times the maximum AC output current.

  • Page 8: Eu Declaration Of Conformity

    02 Safety Precaution User Manual V1.2-2024-07-19 2.5 EU Declaration of Conformity GoodWe Technologies Co., Ltd. hereby declares that the inverter with wireless communication modules sold in the European market meets the requirements of the following directives: • Radio Equipment Directive 2014/53/EU (RED) •...

  • Page 9: Product Introduction

    3 Product Introduction 3.1 Product Overview The UT Series inverter is a three-phase PV string grid-tied inverter. The inverter converts the DC power generated by the PV module into AC power and feeds it into the utility grid. The intended...

  • Page 10: Features

    03 Product Introduction User Manual V1.2-2024-07-19 3.3 Features 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 when the inverter is working.
  • Page 11 03 Product Introduction User Manual V1.2-2024-07-19 Replace the fan on-grid Disconnect a single inverter from the utility grid and change its fan, which means the power generation of other inverters in the power station will not be influenced. PID Recovery (Optional) During the operation of PV panels, there is a potential difference between the output electrodes and the grounded frame of the panels.

  • Page 12: Circuit Diagram

    03 Product Introduction User Manual V1.2-2024-07-19 3.4 Circuit Diagram GW250KH-UT/GW320KH-UT/GW320KH-UT-KR/GW350KH-UT DC Switch 1 PV1+ PV2+ DC EMI MPPT1 DC SPD PV3+ PV4+ DC EMI MPPT2 DC SPD PV5+ PV6+ DC EMI MPPT3 DC SPD DC/AC Output Inverter Filter Filter Circuit Filter DC Switch 4 AC SPD...

  • Page 13: Appearance

    03 Product Introduction User Manual V1.2-2024-07-19 3.5 Appearance 3.5.1 Parts Parts Description Controls PV input terminal 1-3 (MPPT 1-3) to connect DC switch 1-3 (DC SWITCH 1-3) or disconnect the PV string. Controlled by DC switch 1-3. Used to connect the PV PV input terminal 1-3 (MPPT1-3) strings.
  • Page 14 03 Product Introduction User Manual V1.2-2024-07-19 Parts Description PV input terminal 13-15 (MPPT13- Controlled by DC switch 13-15. Used to connect the 15) (Only for GW320K-UT/ PV strings. Only for GW320K-UT and GW350K-UT. GW350K-UT) Controls PV input terminal 13-15 (MPPT 13-15) DC switch 13-15 (DC SWITCH to connect or disconnect the PV string.

  • Page 15: Dimensions

    03 Product Introduction User Manual V1.2-2024-07-19 3.5.2 Dimensions 1120mm 368mm 928mm 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 SINGLE SLOW FLASH= SELF CHECK BEFORE CONNECTING TO THE GRID SINGLE FLASH = CONNECTING TO THE GRID ON= WIRELESS IS CONNECTED/ACTIVE...

  • Page 16: Nameplate

    03 Product Introduction User Manual V1.2-2024-07-19 3.5.4 Nameplate The nameplate is for reference only. GOODWE trademark, product type, Product: Grid-Tied PV Inverter and product model Model : GW*****-UT DCmax : ***** Vd.c . MPP: ***...***Vd.c. PV Input DC,max: **Ad.c. SC PV:**Ad.c AC, r: 3L/PE~800V a.c .

  • Page 17: Check And Storage

    04 Check and Storage User Manual V1.2-2024-07-19 4 Check and Storage 4.1 Check Before Receiving Check the following items before receiving the product. 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 18: Storage

    04 Check and Storage User Manual V1.2-2024-07-19 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 19: Installation

    05 Installation User Manual V1.2-2024-07-19 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. Install the equipment on a surface that is solid enough to bear the inverter weight. 3.
  • Page 20 05 Installation User Manual V1.2-2024-07-19 Children no touch 400mm ≥ ≥50mm ≥600mm ≥600mm 200mm ≥1000mm ≥600mm ALT: 5000m IP66 0%~100%RH Installation Angle Requirements • Install the inverter vertically or at a maximum back tilt of 10 degrees. • Do not install the inverter upside down, forward tilt, backward tilt, or horizontally.
  • Page 21 05 Installation User Manual V1.2-2024-07-19 Installation Space Requirements • Horizontal installation ≥800mm Installation Tool Requirements The following tools are recommended when installing the equipment. Use other auxiliary tools on site if necessary. M8/M12 Socket wrench Goggles Safety shoes Safety gloves Dust mask DC terminal Diagonal pliers...

  • Page 22: Inverter Installation

    05 Installation User Manual V1.2-2024-07-19 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 23 05 Installation User Manual V1.2-2024-07-19 Wall mounting Avoid the water pipes and cables buried in the wall when drilling holes. The M10 expansion bolts should be prepared by customers. Bracket mounting Pole mounting NOTICE The column, clamp, and other accessories are self-prepared.

  • Page 24: Installing The Inverter

    05 Installation User Manual V1.2-2024-07-19 5.2.3 Installing the Inverter Step 1 Install the handles or hoist rings to the sides of the inverter. Step 2 Grab the handles to lift or hoist the inverter to place it on the mounting plate. Step 3 Tighten the nuts to secure the mounting plate and the inverter.
  • Page 25 05 Installation User Manual V1.2-2024-07-19 Hoisting the Inverter CAUTION Follow the instructions below to avoid personal injury or equipment damage: • Connect the rope and the equipment correctly as the following steps and make sure the ropes are safely connected. •...

  • Page 26: Electrical Connection

    06 Electrical Connection User Manual V1.2-2024-07-19 6 Electrical Connection 6.1 Safety Precaution DANGER • Disconnect the DC switch and the AC breaker of the inverter to power off the inverter before any electrical connections. Do not work with power on. Otherwise, an electric shock may occur.
  • Page 27 06 Electrical Connection User Manual V1.2-2024-07-19 PE cable Outdoors Cable ≥ S/2 RS485 Outdoor shielded twisted communication pair cable that meets local 8-11 cable requirements. Note [1] A copper to aluminum wiring terminal is required when using an aluminum cable. [2] Cable length of the RS485 communication cable: ≤1000m.

  • Page 28: Connecting The Pe Cable

    • The M8 OT terminal should be prepared by customers. • Other sizes of grounding cables that meet local standards and safety regulations can also be used for grounding connections. But GOODWE shall not be held liable for any damage caused.
  • Page 29 06 Electrical Connection User Manual V1.2-2024-07-19 NOTICE • Multiple PV inputs can be connected to the inverter, each PV input is configured with a Maximum Power Point Tracker (MPPT). • The two input strings per MPPT should be of the same type, the same number of modules, the same tilt and angle to ensure the best efficiency.

  • Page 30: Connecting The Ac Output Cable

    06 Electrical Connection User Manual V1.2-2024-07-19 6.4 Connecting the AC Output Cable WARNING Do not connect loads between the inverter and the AC breaker directly connected to the inverter. An AC circuit breaker should be installed on the AC side to make sure that the inverter can safely disconnect the grid when an exception happens.
  • Page 31 06 Electrical Connection User Manual V1.2-2024-07-19 Opening the AC wiring box 2.5~3N·m NOTICE Keep the wiring box door open using the attached limit rod during wiring process. Connecting the AC output cable Step 1 Prepare the AC output cable and crimp the OT terminals. Step 2 Cut the rubber seal ring to a proper size.
  • Page 32 L2=L1+3mm 06 Electrical Connection User Manual V1.2-2024-07-19 • Connect the multi-core copper cable to two rows of terminals as below: • Take the three-core copper cable as an example. L1 L2 L3 PE 25~30N·m 32.9-34.9mm 13.9-15.9mm 37.9-39.9mm 17.9-19.9mm > 300mm L2=L1+3mm 43-45mm 21.9-23.9mm...
  • Page 33 06 Electrical Connection User Manual V1.2-2024-07-19 NOTICE • Check whether the wiring is correct and firm after the connection. Clean the objects left within the maintaining cavity. • Close the wiring box door to ensure the ingress protection rating. Close the wiring box door L1 L2 L3 2.5~3N·m 200mm...

  • Page 34: Communication Connection

    06 Electrical Connection User Manual V1.2-2024-07-19 6.5 Communication Connection 6.5.1 Connecting RS485 Communication Cable NOTICE • Make sure that the communication device is connected to the right COM port. Route the communication cable far away from any interference source or power cable to prevent the signal from being influenced.
  • Page 35 06 Electrical Connection User Manual V1.2-2024-07-19 COM2 (RS485) RS485_A1 RS485_B1 RS485_A1 RS485_B1 Grounding Grounding 6.5mm 25mm Sheilding layer 0.3-0.4 N· m D: 8-11mm...
  • Page 36 06 Electrical Connection User Manual V1.2-2024-07-19 Remote Shutdown or Emergency Power Off Remote Shutdown: Europe only. Emergency Power Off: India only. COM Port Port Definition Function 1: DI1+ Remote 2: DI1- Remote Shutdown: reserved to meet the Shutdown or 3: Reserved safety regulations in Europe.
  • Page 37 06 Electrical Connection User Manual V1.2-2024-07-19 6.5mm 25mm COM3 DI1+ DI1- Reserved 0.3~0.4N·m Reserved DI2+ DI2- NOTICE The COM3 communication port is installed with a short circuit wire. Remove the short circuit wire and keep it properly when enabling the function. Install the short circuit wire in PIN2 and PIN5 of the COM3 port when disabling the remote shutdown function.

  • Page 38: Connecting Plc Communication Cable

    06 Electrical Connection User Manual V1.2-2024-07-19 6.5.2 Connecting PLC Communication Cable A PLC communication module is integrated into the inverter to communicate with the smart datalogger or smart communicaiton unit via the AC output cable. Refer to the user manual of the smart datalogger or communication unit for more detailed instructions.

  • Page 39: Installing The Communication Dongle (Optional)

    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 communication module user manual to get more introduction to the module. For more detailed information, visit www.en.goodwe.com.

  • Page 40: Equipment Commissioning

    07 Equipment Commissioning User Manual V1.2-2024-07-19 7 Equipment Commissioning 7.1 Check Before Power ON Check Item The equipment 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 41: System Commissioning

    08 System Commissioning User Manual V1.2-2024-07-19 8 System Commissioning 8.1 Indicators and Buttons Without LCD With LCD 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 42: Setting Inverter Parameters Via Lcd

    08 System Commissioning User Manual V1.2-2024-07-19 8.2 Setting Inverter Parameters via LCD NOTICE • The screenshots are for reference only. The actual interface may differ. • The name, range, and default value of the parameters are subject to change or adjustment. The actual display prevails.
  • Page 43 08 System Commissioning User Manual V1.2-2024-07-19 LCD Menu Introduction This part describes the menu structure, allowing you to view inverter information and set parameters more conveniently. Normal Pac=xxx W Short press Long press for 2s 202x-xx-xx xx:xx:xx Short press Vpv1~3: 0.0/0.0/0.0V Short press Vpv4~6:...

  • Page 44: Setting Inverter Parameters Via App

    08 System Commissioning User Manual V1.2-2024-07-19 8.3 Setting Inverter Parameters via App SolarGo App is one smart phone application used to communicate with the inverter via bluetooth, WiFi, 4G or GPRS modules. Commonly used functions are as follows: 1. Check the operating data, software version, alarms, etc. 2.

  • Page 45: Maintenance

    09 Maintenance User Manual V1.2-2024-07-19 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 Issue a command to the inverter for disconnecting the grid via monitoring platform such as SolarGo app.

  • Page 46: Troubleshooting

    09 Maintenance User Manual V1.2-2024-07-19 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 47 09 Maintenance User Manual V1.2-2024-07-19 Fault Cause Solutions 1. Temporary abnormality caused by Night DCSPS environmental factors. Fault 2. Internal components of the inverter are damaged. 1. The relay is abnormal or short-circuited. 2. The control circuit is Disconnect the AC output switch and DC input abnormal.
  • Page 48 09 Maintenance User Manual V1.2-2024-07-19 Fault Cause Solutions 1. The PV string is short-circuited to the 1. Check whether the PV input cables are ground. broken. 2. The PV system is in a 2. Check whether the module frames and the ISO Fail moist environment metal bracket are securely grounded.
  • Page 49 09 Maintenance User Manual V1.2-2024-07-19 Fault Cause Solutions 1. Check whether the working environment of the inverter meets the requirements. For The input insulation example, the fault may be occurred due to resistance value to the Gnd I Fail high humidity in rainy days. ground decreases when 2.
  • Page 50 09 Maintenance User Manual V1.2-2024-07-19 Fault Cause Solutions 1. The PV module configuration is not PV Over Curr proper. 2. The hardware is Disconnect the AC output switch and DC input damaged. switch, then connect them 5 minutes later. 1. Temporary Contact the dealer or the after-sales service if abnormality caused by the problem persists.
  • Page 51 09 Maintenance User Manual V1.2-2024-07-19 Fault Cause Solutions 1. Temporary abnormality caused by environmental factors. PV HCT Fail 2. Internal components of the inverter are damaged. 1. Temporary abnormality caused by environmental factors. PV Over Curr 2. Internal components of the inverter are damaged.

  • Page 52: Routine Maintenance

    09 Maintenance User Manual V1.2-2024-07-19 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 53: Technical Parameters

    10 Technical Parameters User Manual V1.2-2024-07-19 10 Technical Parameters Technical Parameters GW320KH- GW350KH- GW320K-UT GW350K-UT Input Max. Input Power (kW) Max. Input Voltage (V) 1500 1500 1500 1500 MPPT Operating Voltage Range (V) 480~1500 480~1500 480~1500 480~1500 MPPT Voltage Range at Nominal 850~1300 850~1300 850~1300...
  • Page 54 10 Technical Parameters User Manual V1.2-2024-07-19 Nominal Output Current (A) Power Factor ~1 (Adjustable from 0.8 leading to 0.8 lagging) Max. Total Harmonic Distortion <3% <3% <3% <3% Maximum Output Overcurrent Protection (A) Efficiency Max. Efficiency 99.01% 99.01% 99.01% 99.01% European Efficiency 98.8% 98.8%...
  • Page 55 10 Technical Parameters User Manual V1.2-2024-07-19 Cooling Method Smart Fan Cooling User Interface LED,LCD (Optional), WLAN + APP Communication RS485 or PLC Communication Protocols Modbus RTU Weight (Kg) Dimensions (W×H×D mm) 1120*810*368 Noise Emission (dB) Topology Non-isolated Self-consumption at Night (W) <...
  • Page 56 10 Technical Parameters User Manual V1.2-2024-07-19 Technical Parameters GW320KH-UT-KR GW250KH-UT Input Max. Input Power (kW) Max. Input Voltage (V) 1500 1500 MPPT Operating Voltage Range (V) 480~1500 480~1500 MPPT Voltage Range at Nominal Power (V) 850~1300 850~1300 Start-up Voltage (V) Nominal Input Voltage (V) 1160 1160...
  • Page 57 10 Technical Parameters User Manual V1.2-2024-07-19 CEC Efficiency 98.52% 98.52% Protection PV String Current Monitoring Integrated Integrated Internal Humidity Monitoring Integrated Integrated PV Insulation Resistance Detection Integrated Integrated Residual Current Monitoring Integrated Integrated PV Reverse Polarity Protection Integrated Integrated Anti-islanding Protection Integrated Integrated AC Overcurrent Protection...
  • Page 58 10 Technical Parameters User Manual V1.2-2024-07-19 Topology Non-isolated Self-consumption at Night (W) < 30 < 3 Ingress Protection Rating IP66 IP66 Anti-corrosion Class C4 (C5 Optional) DC Connector MC4 (4~6mm AC Connector OT/DT terminal (Max. 400 mm Environmental Category 4K4H 4K4H Pollution Degree Overvoltage Category...

  • Page 59: Term Explanation

    11 Term Explanation User Manual V1.2-2024-07-19 11 Term Explanation Overvoltage category definition Category I: Applies to equipment connected to a circuit where measures have been taken to reduce transient overvoltage to a low level. Category II: Applies to equipment not permanently connected to the installation. Examples are appliances, portables tools and other plug-connected equipment.
  • Page 60 Official Website GoodWe Technologies Co.,Ltd. No. 90 Zijin Rd., New District, Suzhou, 215011, China www.goodwe.com service@goodwe.com Local Contacts...

This manual is also suitable for:

Gw250kh-utGw320k-utGw320kh-utGw320kh-ut-krGw350k-utGw350kh-ut

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