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User Manual V1.0-2022-08-20

06 Electrical Connection

GMK120

GMK120

Power Limit Network

The PV station generates power for self-consumption, but the electric equipment cannot

consume all the generated power. The inverter can monitor the on-grid electric data in real-time

and adjust the output power via a smart meter to avoid the residual current feeding back to the

utility grid.

6.5 Communication

6.5.1 Communication Network Introduction

Inverter

PV String

Utility Grid

Loads

Circuit

Breaker

Cir

cuit

Br

eaker

Meter

Notice

After completing cable connections, set related parameters via LCD or SolarGo app to enable

export power limit control or output power limit control.

Inverter

PV String

Utility Grid

Loads

Circuit

Breaker

Cir

cuit

Br

eaker

Meter

Networking under 240V Nominal Output Voltage

Networking under 208V Nominal Output Voltage

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Summary of Contents for GW11K4-MS-US30

Page 1: ...User Manual V1 0 2022 08 20 Grid Tied PV Inverter MS Series 5 0 11 4kW G3 US ...

Page 2: ...iptions here are for guidance only and other GOODWE trademarks are trademarks of GoodWe Technologies Co Ltd All other trademarks or registered trademarks mentioned in this manual are owned by GoodWe Technologies Co Ltd NOTICE 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 L...

Page 3: ... 5 Personal Requirements 5 3 Product Introduction 6 3 1 Application Scenarios 6 3 2 Circuit Diagram 6 3 3 Supported Grid Types 7 3 4 Inverter Operation Mode 8 3 5 Functionality 9 3 6 Appearance 9 3 6 1 Parts 9 3 6 2 Dimensions 10 3 6 3 Indicators 10 3 6 4 Nameplate 11 4 Check and Storage 12 4 1 Check Before Receiving 12 4 2 Deliverables 12 4 3 Storage 13 5 Installation 14 5 1 Installation Requirem...

Page 4: ...Cable 27 6 5 3 Installing the WiFi Module optional 28 6 5 4 Connecting the antenna optional 28 7 Equipment Commissioning 29 7 1 Check Before Power ON 29 7 2 Power On 29 8 System Commissioning 30 8 1 Indicators and Buttons 30 8 3 Upgrading the Firmware Via USB Flash Disk 31 8 4 Setting Inverter Parameters via SolarGo App 31 8 4 Monitoring via SEMS Portal 31 9 Maintenance 32 9 1 Power Off the Invert...

Page 5: ... information installation electrical connection commissioning troubleshooting and maintenance Read through this manual before installing and operating the product 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 Appli...

Page 6: ...e 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 NOTICE Highlight and supplement the texts Or some skills and methods to solve product...

Page 7: ... with local standards and safety regulations Use insulating tools and wear personal protective equipment when operating the equipment to ensure personal safety Wear anti static gloves cloths and wrist strips when touching electron devices to protect the inverter from damage Strictly follow the installation operation and configuration instructions in this manual The manufacturer shall not be liable...

Page 8: ...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 25 times the rated AC output rated current Make sure that all the groundings are tightly connected When there are multiple inverters make sure that all...

Page 9: ...uirements NOTICE Personnel who install or maintain the equipment must be strictly trained learn about safety precautions and correct operations Only qualified professionals or trained personnel are allowed to install operate maintain and replace the equipment or parts ...

Page 10: ...lication Scenarios 3 2 Circuit Diagram Utility Grid PV String Inverter Circuit Breaker optional Circuit Breaker Circuit Breaker Load The MS G3 inverter is a single phase PV string grid tied inverter which converts the DC power generated by the PV module into AC power for loads or the grid The intended use of the inverter is as follows Main Panel ...

Page 11: ...it Phase AC Grid 240V 120V Stinger AC Grid 240V Delta AC Grid 208V 120V WYE AC Grid 208V Delta AC Grid 3 3 Supported Grid Types The inverter supports 240V 120V Split Phase AC Grid 240V 120V Stinger AC Grid 240V Delta AC Grid 208V 120V WYE AC Grid and 208V Delta AC Grid ...

Page 12: ... the conditions are met it enters the grid tied mode and the inverter starts on grid connection If a burning request is received the inverter enters the burning mode If the self check is not passed it enters the fault mode 3 Grid Tied mode The inverter is grid tied successfully making energy conversion and controlling the power in PV systems If a fault is detected it enters the fault mode If a bur...

Page 13: ...s 2 4G frequency band Set the router to 2 4G or 2 4G 5G coexistence mode User can set 40 bytes for router wireless signal name maximumly LAN optional supports connecting to the router via LAN communication and then connecting to the server No Parts Description 1 DC Switch Start or stop DC input 2 Ezlink Reset Button Optical able to reset the Ezlink 3 Cable Hole Inverter cable inlet and outlet 4 CO...

Page 14: ...lf check before connecting to the grid Single flash Connecting to the grid ON Wireless is connected active Blink 1 Wireless system is resetting Blink 2 Wireless router not connected Blink 4 Wireless server problem Blink RS485 is connected OFF Wireless is not active ON A fault has occurred OFF No fault No Parts Description 8 Mounting Plate Used to install the inverter 9 Heat sink Used to cool the i...

Page 15: ...2 08 20 03 Product Introduction 3 6 4 Nameplate The nameplate is for reference only GW trademark product type and product model Technical parameters Safety symbols and certification marks Contact information and serial number ...

Page 16: ...he inverter model If the inverter model is not what you requested do not unpack the product and contact the supplier 3 Check the deliverables for correct model complete contents and intact appearance Contact the supplier as soon as possible if any damage is found Inverter x 1 Mounting plate x 1 WARNING Connect the DC cables with the delivered terminals The manufacturer shall not be liable for the ...

Page 17: ...kage or throw the desiccant away 2 Store the equipment in a clean place Make sure the temperature and humidity are appropriate and no condensation 3 The height and direction of the stacking inverters should follow the instructions on the packing box 4 The inverters must be stacked with caution to prevent them from falling 5 If the inverter has been long term stored it should be checked by professi...

Page 18: ...e that is easy to touch especially within children s reach High temperature exists when the equipment is working Do not touch the surface to avoid burning 8 Install the equipment at a height that is convenient for operation and maintenance electrical connections and checking indicators and labels 9 The altitude to install the inverter shall be lower than the maximum working altitude 3000m 9842ft 1...

Page 19: ...ide down forward tilt back forward tilt or horizontally 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 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 20: ... the equipment Use other auxiliary tools on site if necessary Installation Tool Requirements Torque wrench Cable tie Multimeter Marker Level Heat shrink tube Rubber hammer Goggles Safety shoes Safety gloves Dust mask Diagonal pliers Wire stripper Hammer drill Heat gun DC wiring wrench Vacuum cleaner ...

Page 21: ... inhaled or contacting eyes when drilling holes The DC switch lock shall be prepared by customers with hole diameter φ8mm 0 31in Select appropriate size Otherwise it is unable to finish the installation The DC switch lock shall be prepared by customers with hole diameter φ10mm 0 39in Select appropriate size Otherwise it is unable to finish the installation Make sure the inverter is firmly installe...

Page 22: ...n compliance with local laws and regulations The input and output circuits are isolated from the enclosure and that system grounding if required by the National Electric Code ANSI NFPA 70 is the responsibility of the installer Disconnect the DC switch and the AC output switch of the inverter to power off the inverter before any electrical connections Do not work with power on Otherwise an electric...

Page 23: ...e bottom of the inverter is 34mm 1 34 in When installing the conduit make sure the installation is in place and the hole between the conduit and the inverter interface is sealed Otherwise the protection level of the equipment may be affected which may cause damage to the equipment 6 2 Preparations before Installation 6 2 1 Terminal Introduction PV DC cable Routing hole Diameter for the inverter ro...

Page 24: ...ting UL2919 CM CMG NEC type or CMH CSA type standards with conductor cross sectional area between 24 and 16AWG 6 Meter communication terminal METER Used to connect the meter communication cable The recommended cables are outdoor communication cables meeting UL2919 CM CMG NEC type or CMH CSA type standards with conductor cross sectional area between 24 and 16AWG 7 Communication terminal for multi i...

Page 25: ...ter use If you need to open the inverter cover in rain or snow please take protective measures to prevent rain or snow from entering the maintenance chamber If it is not able to be guaranteed do not open the inverter cover It is forbidden to open the inverter upper case cover 6 3 Opening the wiring cover DANGER INSTRUCTIONS PERTAINING TO A RISK OF FIRE OR ELECTRIC SHOCK Do not connect one PV strin...

Page 26: ...t over the permissible range 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 Select the appropriate AC circuit breaker in compliance with local laws and regulations Recommended AC circuit break...

Page 27: ... may be too hot to damage the inverter when the inverter is working Inverter model AC circuit breaker GW5000 MS US30 30A GW6000 MS US30 35A GW7600 MS US30 40A GW9600 MS US30 50A GW11K4 MS US30 60A Model RCD specifications GW5000 MS US30 300mA GW6000 MS US30 GW7600 MS US30 GW9600 MS US30 GW11K4 MS US30 A type A RCD Residual Current Device shall be added to protect the equipment when the DC componen...

Page 28: ...24 User Manual V1 0 2022 08 20 06 Electrical Connection 28mm 1 10in 28mm 1 10in 28mm 1 10in ...

Page 29: ... to avoid the residual current feeding back to the utility grid 6 5 Communication 6 5 1 Communication Network Introduction Inverter PV String Utility Grid Loads Circuit Breaker Circuit Breaker Meter Notice After completing cable connections set related parameters via LCD or SolarGo app to enable export power limit control or output power limit control Inverter PV String Utility Grid Loads Circuit ...

Page 30: ...t Breaker Meter With GMK120 the inverter output data and on grid data can be accurately measured to calculate the load electricity consumption The operating data will be uploaded to the Cloud via WiFi or Ezlink communication to realize 24 hours real time load electricity consumption monitoring Networking under 240V Nominal Output Voltage Networking under 208V Nominal Output Voltage Load Monitoring...

Page 31: ... the debris after completing the connection Seal the AC output terminal to ensure the ingress protection rating 6 8mm 0 24 0 31in 6 8mm 0 24 0 31in NOTICE Make sure that the communication device is connected to the right terminal Route the communication cable far away from any interference source or power cable to prevent the signal from being influenced Step 1 Make the communication cable Step 2 ...

Page 32: ...the 4G antenna 6 5 4 Connecting the antenna optional NOTICE Refer to the delivered WiFi module user manual to get more introduction to the module For more detailed information visit https en goodwe com The inverter supports being connected to the smart phone or web pages via Ezlink and WiFi module to set relative parameters thus to check the inverter s running information fault information and obs...

Page 33: ...bles are connected correctly and securely 3 Cable ties are intact routed properly and evenly 4 Unused ports and terminals are sealed 5 The voltage and frequency at the connection point meet the inverter grid connection requirements 7 2 Power On Step 1 Turn on the AC switch between the inverter and the utility grid Step 2 Turn on the DC switch of the inverter DC Switch optional AC Switch Utility Gr...

Page 34: ... feeding power Single slow flash Self check before connecting to the grid Single flash Connecting to the grid ON Wireless is connected active Blink 1 Wireless system is resetting Blink 2 Wireless router not connected Blink 4 Wireless server problem Blink RS485 is connected OFF Wireless is not active ON A fault has occurred OFF No fault 8 System Commissioning 8 1 Indicators and Buttons ...

Page 35: ...m Ftp EN Downloads User 20Manual GW_SolarGo_User 20Manual EN pdf to get the user manual SolarGo App SolarGo App User Manual Step 1 Contact the after sales service to obtain the upgrade package Step 2 Save the upgrade package in the USB flash drive Step 3 Insert the USB flash drive into the USB port and upgrade the software version of the inverter following the prompts 8 4 Monitoring via SEMS Porta...

Page 36: ... the inveter to remove the inverter from the mounting plate Step 3 Remove the mounting plate Step 4 Store the inverter properly If the inverter needs to be used later ensure that the storage conditions meet the requirements 9 3 Disposing of the Inverter If the inverter cannot work anymore dispose of it according to the local disposal requirements for electrical equipment waste The inverter cannot ...

Page 37: ...if the grid voltage exceeds the permissible range Modify the overvoltage protection threshold HVRT or disable the overvoltage protection function after obtaining the consent of the local power company if the grid frequency is within the permissible range 3 Check whether the AC breaker and the output cables are connected securely and correctly if the problem persists 3 Grid Rapid Overvoltage The gr...

Page 38: ...tion function after obtaining the consent of the local power company if the grid frequency is within the permissible range 3 Check whether the AC breaker and the output cables are connected securely and correctly if the problem persists 5 Grid 10min Overvoltage The moving average of grid voltage in 10min exceeds the range of safety requirements 1 If the problem occurs occasionally the utility grid...

Page 39: ... 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 whether the grid frequency is within the permissible range Contact the local power company if the grid frequency exceeds the permissible range Modify the underfrequency protection threshold or disable the underfrequency protectio...

Page 40: ...dealer or the after sales service 11 HVRT Overvoltage Utility grid exception The duration of utility grid exception exceeds the set time of HVRT 12 Abnormal GFCI 30mA The input insulation impedance becomes low when the inverter is working 1 If the problem occurs occasionally it may be caused by a cable exception The inverter will recover automatically after the problem is solved 2 Check whether th...

Page 41: ...onnected reversely if output of the PV string is grounded 20 Anti Reverse power Failure Abnormal fluctuation of load 1 If the exception is caused by an external fault the inverter will recover automatically after solving the problem 2 If the problem occurs frequently and the PV station cannot work properly contact the dealer or the after sales service 21 Internal Comm Loss 1 Frame format error 2 P...

Page 42: ... the problem persists 26 Flash Fault The internal Flash storage is abnormal Disconnect the AC output switch and DC input switch then connect them 5 minutes later Contact the dealer or the after sales service if the problem persists 27 DC Arc Fault 1 The DC terminal is not firmly connected 2 The DC cable is broken Read the Quick Installation Guide and check whether the cables are connected properly...

Page 43: ... PV string is not higher than the maximum operating voltage of the inverter 32 PV Continuous Hardware Overcurrent 1 The PV configuration is not proper 2 The hardware is damaged Disconnect the AC output switch and DC input switch then connect them 5 minutes later Contact the dealer or the after sales service if the problem persists 33 PV Continuous Software Overcurrent 1 The PV configuration is not...

Page 44: ...f ten consecutive times to make sure that it is working properly Once a year Electrical Connection Check whether the cables are securely connected Check whether the cables are broken or whether there is any exposed copper core Once 6 12 months Sealing Check whether all the terminals and ports are properly sealed Reseal the cable hole if it is not sealed or too big Once a year WARNING Make sure tha...

Page 45: ...16 Max Short Circuit Current per MPPT A 23 4 23 4 23 4 Max Backfeed Current to The Array A 0 0 0 Number of MPP trackers 2 2 2 Number of Strings per MPPT 1 1 1 Output Nominal Output Power W at 240V 5 000 6 000 7 600 Nominal Output Power W at 208V 4 333 5 200 6 580 Nominal Output Apparent Power VA at 240V 5 000 6 000 7 600 Nominal Output Apparent Power VA at 208V 4 333 5 200 6 580 Max AC Active Powe...

Page 46: ...8 68 Efficiency Max Efficiency 97 5 97 5 97 5 CEC Efficiency at 240V 96 5 96 5 96 5 CEC Efficiency at 208V 96 0 96 0 96 5 Protection PV String Current Monitoring Integrated PV Insulation Resistance Detection Integrated Residual Current Monitoring Integrated PV Reverse Polarity Protection Integrated Anti islanding Protection Integrated AC Overcurrent Protection Integrated AC Short Circuit Protectio...

Page 47: ...t Current per MPPT A 23 4 23 4 Max Backfeed Current to The Array A 0 0 Number of MPP trackers 3 3 Cooling Method Natural Convection Display LED WLAN APP Communication RS485 WiFi or Bluetooth or 4G or LAN Optional Communication Protocols Modbus RTU SunSpec Compliant Weight Ib 51 8 23 0kg Dimension W H D in 19 2 26 4 7 8 487 670 199mm Noise Emission dB 25 Topology Non isolated Self consumption at Ni...

Page 48: ...ge V at 240V according to local standard 211 264 211 264 Output Voltage Range V at 208V according to local standard 183 229 183 229 Nominal AC Grid Frequency Hz 60 60 AC Grid Frequency Range Hz 58 62 58 62 Max Output Current A 40 0 47 5 Max Output Fault Current Peak and Duration A ms at 20us 101 101 Inrush Current Peak and Duration A us at 20us 58 58 Nominal Output Current A 40 0 47 5 Power Factor...

Page 49: ...Humidity 0 95 Max Operating Altitude ft 9842 3000m Cooling Method Natural Convection Display LED WLAN APP Communication RS485 WiFi or Bluetooth or 4G or LAN Optional Communication Protocols Modbus RTU SunSpec Compliant Weight Ib 55 1 25kg Dimension W H D in 19 2 26 4 7 8 487 670 199mm Noise Emission dB 35 Topology Non isolated Self consumption at Night W 5 Ingress Protection Rating Type 4X IP66 An...

Page 50: ...ained by contacting the after sales Time frame Steady state measurements Transient measurements Parameter Minimum measurement accuracy Measurement window Range Minimum measurement accuracy Measurement window Range Voltage RMS 1 Vnom 10 cycles 0 5 p u to 1 2 p u 2 Vnom 5 cycles 0 5 p u to 1 2 p u Frequencyb 10 mHz 60 cycles 50 Hz to 66 Hz 100 mHz 5 cycles 50 Hz to 66 Hz Active Power 5 Srated 10 cyc...

Page 51: ...GoodWe Technologies Co Ltd No 90 Zijin Rd New District Suzhou 215011 China www goodwe com service goodwe com Contact Information Official Website ...

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