INVT iMars MG Series Operation Manual
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INVT iMars MG Series Operation Manual

Grid-tied solar inverter
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Grid-tied Solar Inver ter

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Summary of Contents for INVT iMars MG Series

  • Page 1 MG Series Grid-tied Solar Inver ter...

  • Page 2: Preface

    Preface Thank you for purchasing iMars MG series grid-tied solar inverters. iMars MG series grid-tied solar inverters is mainly used in solar photovoltaic grid system. As a non-isolation and high-efficiency string photovoltaic grid-tied inverter, it transfers DC energy generated by solar modules to sinusoidal AC energy and feedback to public grid. The energy has the same frequency and phase with the utility grid.

  • Page 3: Table Of Contents

    INVT iMars MG series grid-tied solar inverters Content Contents Preface ............................1 Contents ............................2 1 Safety precautions ........................5 1.1 Icons ............................. 6 1.2 Safety guidelines........................6 1.2.1 Delivery and installation ....................7 1.2.2 Grid-tied operation ......................8 1.2.3 Maintenance and inspection ..................8 1.2.4 What to do after scrapping ....................
  • Page 4 INVT iMars MG series grid-tied solar inverters Content 3.3 Mechanical installation ......................23 3.3.1 Installation of single-phase inverter ................23 3.4 Electrical installation ......................25 3.4.1 Connection of solar modules ..................26 3.4.2 AC connection of single-phase inverter ..............27 4 Operation ...........................
  • Page 5 INVT iMars MG series grid-tied solar inverters Content 6.2 Optional communication ..................... 52 6.2.1 WiFi200 converter ....................... 53 6.2.1.1 WiFi200 Product Introduction .................. 53 6.2.1.2 Monitoring solutions ....................54 6.2.1.3 Installation and commissioning ................56 7 Troubleshooting ........................64 8 Contact us ..........................67...

  • Page 6: Safety Precautions

    INVT iMars MG series grid-tied solar inverters Safety precautions 1 Safety precautions This chapter describes various warning symbols in the operation manual of iMars series inverters. It is intended to provide the installers and the users with all safety information about installation, operation, and use of the inverter.

  • Page 7: Icons

    INVT iMars MG series grid-tied solar inverters Safety precautions 1.1 Icons This manual provides relevant information with icons to highlight the physical and property safety of the user to avoid device damage and physical injury. The icons used in this manual are listed below:...

  • Page 8: Delivery And Installation

    INVT iMars MG series grid-tied solar inverters Safety precautions  Ensure that there is no electromagnetic interference from other electrical and electronic equipments on the installation site.  Do not refit the inverter unauthorized.  All the electric installation needs to be compliance with the national or local laws and standards.

  • Page 9: Grid-Tied Operation

    INVT iMars MG series grid-tied solar inverters Safety precautions no grounding may cause stop of the inverter.  Ensure reliable installation and electrical connection.  When the photovoltaic generator cells are exposed to light (even if it is dim), the generator supplies DC voltage to the inverter.

  • Page 10: Product Overview

    INVT iMars MG series grid-tied solar inverters Product overview 2 Product overview This chapter mainly describes the appearance, packaging accessories, name plate, technical parameters and other information of iMars MG series grid-tied solar inverters. - 9 -...

  • Page 11: Solar Grid-Tied Power Generation System

    AC energy which has the same frequency and phase with the public grid by grid-tied solar inverters, and then be fed to the grid. iMars MG series grid-tied solar inverters are only applied in solar grid-tied power generation system and its DC input are only composed of crystalline silicon solar modules whose negative and positive poles are not grounded.

  • Page 12: Products Appearance

    INVT iMars MG series grid-tied solar inverters Product overview 2.2 Products appearance 2.2.1 Single-phase inverters Figure 2.3 Products appearance of single-phase inverter Table 2-1 Parts instruction of single-phase inverter Name Instruction Cover Operational panel LED indicators DC switch On –off of the DC input...

  • Page 13: Name Plate On The Package

    INVT iMars MG series grid-tied solar inverters Product overview 2.3.1 Name plate on the package The information on the name plate of the package includes the inverter model, certification logo，,protective degree, gross weight, environmental logo, and brand information and so on.

  • Page 14: Models

    INVT iMars MG series grid-tied solar inverters Product overview Figure 2.5 Name plate on the inverter 2.3.3 Models Table 2-2 Models of iMars grid-tied solar inverter Product name Model Rated output power Single-phase (L, N, PE) Single-phase grid-tied solar inverter...

  • Page 15: Technical Parameters

    INVT iMars MG series grid-tied solar inverters Product overview 2.4 Technical parameters Table 2-3 Technical parameters of single-phase inverter Single-phase Model MG750TL MG1K1TL MG1K5TL MG2KTL MG3KTL MG4KTL MG4K6TL MG5KTL MG3KTL MG4KTL-2M MG4K6TL-2M MG5KTL-2M Vmax PV Recommended Max. DC voltage (V)
  • Page 16 INVT iMars MG series grid-tied solar inverters Product overview Single-phase Model MG750TL MG1K1TL MG1K5TL MG2KTL MG3KTL MG4KTL MG4K6TL MG5KTL MG3KTL MG4KTL-2M MG4K6TL-2M MG5KTL-2M temperature Relative 4% ~ 100%., no Condensation humidity Max. <2000 (derate if the altitude＞2000) altitude(m) Overvoltage II(DC side), III(AC side)

  • Page 17: Dimensions And Weight

    INVT iMars MG series grid-tied solar inverters Product overview 2.5 Dimensions and weight Figure 2.6 Inverter dimensions Table 2-4 Inverter dimension and net weight Net weight Model (mm) (mm) (mm) (kg) MG750TL/MG1KTL / MG1K5TL / MG2KTL /MG3KTL MG4KTL /MG5KTL MG3KTL-2M/ MG4K6TL/...
  • Page 18 INVT iMars MG series grid-tied solar inverters Product overview Figure 2.7 Paper packages dimension Table 2-5 Packages dimension and gross weight Gross Packaging Model (mm) (mm) (mm) weight (kg) Material MG750TL/MG1KTL/MG1K5TL / Paper MG2KTL/MG3KTL MG4KTL/MG4K6TL 16.5 Paper MG3KTL-2M/ MG4K6TL/ MG4KTL-2M/MG4K6TL-2M/ 18.5...

  • Page 19: Installation

    INVT iMars MG series grid-tied solar inverters Installation 3 Installation This chapter describes how to install the inverter and connect it to the grid-tied solar system (including the connection between solar modules, public grid and inverter). Read this chapter carefully and ensure all installation requirements are met before installation.

  • Page 20: Unpacking Inspection

    INVT iMars MG series grid-tied solar inverters Installation 3.1 Unpacking inspection Inspect the information of the order and the name plate to ensure the product are the ordered one and no damage to the package. If any problem, contact the supplier as soon as possible.

  • Page 21: Before Installation

    INVT iMars MG series grid-tied solar inverters Installation Name Quantity operation manual Hexagon assembling bolt M4*16 Communication connector MG750TL/MG1KTL/MG1K5TL/ MG2KTL/MG3KTL:3 Expansion bolts M6*60 MG4KTL/MG4K6TL/MG5KTL/ MG3KTL-2M/MG4KTL-2M/ MG4K6TL-2M/MG5KTL-2M:4 MG750TL/MG1KTL/MG1K5TL / MG2KTL:1 pair DC connector MG3KTL/MG4KTL/MG4K6TL/MG5KTL /MG3KTL-2M/MG4KTL-2M/ MG4K6TL-2M/MG5KTL-2M:2 pairs 3.2 Before installation 3.2.1 Installation tools...

  • Page 22: Connection Cables

    INVT iMars MG series grid-tied solar inverters Installation (5) The installation position keeps away from the interface of other electrical devise. (6) The inverter needs to be installed on a firm and sturdy surface, such as wall and metal bracket and so on.

  • Page 23: Miniature Circuit Breakers

    INVT iMars MG series grid-tied solar inverters Installation Table 3-4 Cable specifications DC side AC side Mini cross-section Cross-section Cross-section Model mm² (length ≤50m) (length >50m) mm² N/PE mm² MG750TL/MG1K1TL / MG1K5TL / MG2KTL /MG3KTL MG4KTL/MG4K6TL/ MG5KTL/MG3KTL-2M /MG4KTL-2M/MG4K6TL -2M/MG5KTL-2M 3.2.4 Miniature circuit breakers It is recommended strongly to install circuit breakers or fuses at the DC input and AC output to ensure safe installation and running.

  • Page 24: Mechanical Installation

    INVT iMars MG series grid-tied solar inverters Installation DC input AC output Recommended DC Recommended AC Model breakers (optional for breakers length >100m) MG5KTL/ MG4K6TL DC600V, C16A, 2P AC240V, C32A, 2P /MG4K6TL-2M/MG5KTL-2M 3.3 Mechanical installation Since the installation place can be made by different construction materials, the inverter can be installed by different mounting methods.
  • Page 25 INVT iMars MG series grid-tied solar inverters Installation Table 3-6 Size of installation bracket Installation hole Model A(mm) MG750TL/MG1K1TL / MG1K5TL /MG2KTL /MG3KTL MG4KTL/MG4K6TL/MG5KTL/MG3KTL-2M/ MG4KTL-2M/MG4K6TL Table 3-7 Instruction of installation bracket Structure instruction Installation holeΦ8 Hexagon assembling bolt hole M4...

  • Page 26: Electrical Installation

    INVT iMars MG series grid-tied solar inverters Installation 3.4 Electrical installation This section proposes to describe detailed electrical installation and related safety instructions. Solar PV Modules iMars Grid-tied Solar Inverter Feeding Meter Public Grid Communication Converter Monitoring Equipment Figure 3.7 Block diagram of the grid-tied solar system ...

  • Page 27: Connection Of Solar Modules

    INVT iMars MG series grid-tied solar inverters Installation 3.4.1 Connection of solar modules Figure 3.8 Connection between DC connector and solar modules Connection steps: (1) Lighting, short-circuit and other protection measures which meet the local electrical safety laws and regulations are needed before the AC connection;...

  • Page 28: Ac Connection Of Single-Phase Inverter

    INVT iMars MG series grid-tied solar inverters Installation 3.4.2 AC connection of single-phase inverter Figure 3.9 AC connection of single-phase inverter Connection steps of single-phase inverter: (1) Before connecting the single-phase AC grid cable to the inverter, take lightning and short circuit protection measures in accordance with the local electrical safety codes;...

  • Page 29: Operation

    INVT iMars MG series grid-tied solar inverters Operation 4 Operation This chapter describes detailed operation of the inverter which involves the inspection before operation, grid-tied operation, stopping and daily maintenance of the inverter. - 28 -...

  • Page 30: Inspection Before Operation

    INVT iMars MG series grid-tied solar inverters Operation 4.1 Inspection before operation Check as follows before operation (including but not limited to): (1) Ensure the installation site meet the requirement mentioned in section 3.2.2 for easy installation, removing, operation and maintenance;...

  • Page 31: Stopping

    INVT iMars MG series grid-tied solar inverters Operation 4.3 Stopping Stop the inverter as follows it needs maintenance, inspection and troubleshooting: (1) Switch off the breakers at the AC side; (2) Switch off the integrated DC switch; (3) Switch off the switch on the DC side;...

  • Page 32: Maintenance Guide

    INVT iMars MG series grid-tied solar inverters Operation Maintenance Maintenance Maintenance methods contents cycle Check the off-on feature of inverter: use monitoring software or LCD and keyboard on the inverter, do "off" and "on" operation, to Check the security confirm its off-on feature intact. At the same...

  • Page 33: Display Panel

    INVT iMars MG series grid-tied solar inverters Display panel 5 Display panel This chapter describes the panel displaying and how to operate on the panel, which involves the LCD display, LED indicators and operation panel. - 32 -...

  • Page 34: Led Indicators

    INVT iMars MG series grid-tied solar inverters Display panel 5.1 LED indicators There are three LED indicators on the panel: (1) “Run”, operation indicator, green; (2) “Warn” recoverable fault indicator, yellow; (3) “Fault”, unrecoverable fault indicator, red. The inverter state includes 6 states of stand-by, self-inspection, power generation, recoverable fault and unrecoverable fault;...

  • Page 35: Operation Panel

    INVT iMars MG series grid-tied solar inverters Display panel Inverter state LED indicators Description (1) Inverter stand-by. Temperature abnormal(E006); (2) Inverter stand-by. DC input fault (E001); Warn Fault Yellow indicator keeps on, others off Hardware or software fault (E003, E004, E005, E008, E009, E011, E013 or E015).

  • Page 36: Lcd Screen

    INVT iMars MG series grid-tied solar inverters Display panel 5.3 LCD screen LED indicator Operation panel Operation panel LCD screen Figure 5.1 Operation panel All information is displayed on the LCD screen. The background illumination of LCD screen will go out to save power if there is not button operation in 15 seconds.

  • Page 37: Functions Operation

    INVT iMars MG series grid-tied solar inverters Display panel information freely; (3) 5 states of the inverter are displayed on the screen; (4) If the inverter is in fault or warning state, up to 8 corresponding fault codes can be displaying on the screen.

  • Page 38: Statistics

    INVT iMars MG series grid-tied solar inverters Display panel 5.4.3 Statistics Press “ ” and “ ” in the main interface to select “Statistics”, and then press “ENT” to view the parameters which is shown in figure 5.6. S t a t i s t i c a l M e n u...
  • Page 39 INVT iMars MG series grid-tied solar inverters Display panel Parameters can be set in this interface. LCD menus: V - pv 1 : 000 . 0 V Setup Menu I - pv 1 : 000 . 0 A Address Date / Time V - pv 2 : 000 .
  • Page 40 INVT iMars MG series grid-tied solar inverters Display panel System Information Control Menu On / Off Factory Part No . Cert . Area Serial No . Clear Run Param Restart Soft Ver Part No . On / Off Ctrl iMars BG 5 KTL : Sure ？...
  • Page 41 INVT iMars MG series grid-tied solar inverters Display panel Setting item LCD display Instruction edition and press “ESC” to exit. The default password is “0000”; the user can enter into the setting interface without password. If the password is not “0000”, the user can enter into the...
  • Page 42 INVT iMars MG series grid-tied solar inverters Display panel Setting item LCD display Instruction MPPT of Track A and Track B; “parallel mode” is the parallel MPPT of Track A and Track B. The default mode is “independent”. The input mode setting is invisible if the inverter is in power generation.
  • Page 43 INVT iMars MG series grid-tied solar inverters Display panel Setting item LCD display Instruction The password is needed when enter into Input password the interface of “Set power”. Get the 0000 password from the supplier if necessary (supplier password: 2678). There are 3 ①P...
  • Page 44 INVT iMars MG series grid-tied solar inverters Display panel Setting item LCD display Instruction Input password 0000 Run Param UV Volt OV time UV time UF Freq OV Volt UF time Password is required when enter into the ACUV Volt(phase volt) interface of “Run Param”.
  • Page 45 INVT iMars MG series grid-tied solar inverters Display panel Setting item LCD display Instruction Input Password 0000 Run Param UV volt 1 OV time 1 UV time 1 UF Freq 1 OV volt 1 UF time 1 ACUV Volt(phase volt)

  • Page 46: System Information

    INVT iMars MG series grid-tied solar inverters Display panel 5.4.5 System Information Press “ ” and “ ” in the main interface to select “System Information”, and then press “ENT” to view the parameters which is shown in figure 5.8.

  • Page 47: Mode Settings

    INVT iMars MG series grid-tied solar inverters Display panel Refer to the table below for detailed information. Table 5-4 Inverter control Control item LCD display Instruction Control the “On/Off” through the panel. Press “ ” and “ ” in the control...

  • Page 48: Grid Certification Choice

    INVT iMars MG series grid-tied solar inverters Display panel Figure 5.12 “Parallel” input mode  Only where there is more than 100V DC voltage input, LCD display working, and Note AC switch off, can query and modify the inverter DC input mode via the LCD screen and keypad.
  • Page 49 INVT iMars MG series grid-tied solar inverters Display panel V - p v 1 : 0 0 0 . 0 V M a i n M e n u I - p v 1 : 0 0 0 . 0 A...
  • Page 50 INVT iMars MG series grid-tied solar inverters Display panel Reference Table: Grid Certification and Grid Voltage and Frequency of Some Countries Single-phase Three-phase Grid Country Certification voltage voltage frequency Germany France Greece Turkey Romania VDE0126& Slovakia 220~230V 380~400V 50Hz AR-N4105...

  • Page 51: Monitoring Communication

    INVT iMars MG series grid-tied solar inverters Monitoring communication 6 Monitoring communication This chapter describes the communication connection of inverter and monitoring system (Industrial master, private computers, smart phones and so on). - 50 -...

  • Page 52: Standard Communication

    INVT iMars MG series grid-tied solar inverters Monitoring communication The standard communication mode of iMars grid-tied solar inverter is RS485 which includes “RS485” and “EXT” ports. The two ports can both communicate with private computers, smart phones and so on. The system monitoring solution are shown as figure 6.1.

  • Page 53: Optional Communication

    INVT iMars MG series grid-tied solar inverters Monitoring communication RS485 Figure 6.2 RS485 pin on inverter Figure 6.3 Communication connector Connection steps: (1) Weld communication cables to the RS485 terminals of the inverter as figure 6.4 shows;Ensure the cable corresponds to the pin as table 6-1 shows and the welding is tight enough.

  • Page 54: Wifi200 Converter

    INVT iMars MG series grid-tied solar inverters Monitoring communication Optional accessories Inverter port Port of upper PC Ethernet converter RS485/EXT RJ45 plug WiFi converter RS485/EXT WiFi signal Please download the connection instruction, operation manual and commissioning tools on website www.invt-solar.com.

  • Page 55: Monitoring Solutions

    INVT iMars MG series grid-tied solar inverters Monitoring communication Interface Parameters function TCP Server, TCP Client, UDP mode and UDP Server mode Operation interface, target IP address and interface can be set in random Disconnect automatically after the network disconnection,...
  • Page 56 3. Router internet Figure 6.7 Router internet solution Router internet is suitable for internet monitoring without distance limit. But the servers of INVT solar monitoring system are needed. The wiring is as the figure above. Hardware and software - 55 -...

  • Page 57: Installation And Commissioning

    INVT iMars MG series grid-tied solar inverters Monitoring communication devices such as iMars series solar inverters, WiFi200 communication converters, devices with the function of WiFi signal receiving (such as computers and mobile phones) are needed in the establishment of router internet monitoring. Websites or mobile phone APP are needed for the operation and data viewing.
  • Page 58 INVT iMars MG series grid-tied solar inverters Monitoring communication There are 3 areas in the main Web interface: 1 Network configuration; 2 Serial port configuration; 3 Configuration submitting Network modes (NetMode):  Default – default operation mode  ETH-SERIAL – serial port to Ethernet ...
  • Page 59 INVT iMars MG series grid-tied solar inverters Monitoring communication Generally, above parameters does not need to be modified, and it can be adjusted during special requirements. Current: display the current configuration; Updated: display the current parameters to be modified. Serial Configure: serial port configuration. The format is as below: baud rate, parity check, data bits, stop bit, for example，“9600,8,n,1”...
  • Page 60 INVT iMars MG series grid-tied solar inverters Monitoring communication the user. The authenticated encryption is OPEN, WEP, WPA and so on. The user can set the security according to the needs. Select TCP Server in the configuration of the serial port.
  • Page 61 INVT iMars MG series grid-tied solar inverters Monitoring communication （4）Configuration of router server Select STA station spot mode as the operation mode. SSID is the hotspot name and the user needs to modify it as the router name. The user can use the button “Scan” to scan the wireless hot spots information and then the router list can be found.
  • Page 62 INVT iMars MG series grid-tied solar inverters Monitoring communication The software of iMars WinExpert can check the configuration of WiFi200 and this method can be used in the direct monitoring and router LAN monitoring. Please download the monitoring software of iMars WinExpert and the operation instruction on www.invt-solar.com.
  • Page 63 INVT iMars MG series grid-tied solar inverters Monitoring communication Enable the “Ethernet communication settings” in the pop-up dialog box, fill in the IP address and port number. The port number needs to be the same as that of the “Network setting”.
  • Page 64 INVT iMars MG series grid-tied solar inverters Monitoring communication As shown in the figure, the inverter whose communication address in solar system is "001" inverter has been displayed in the search list, which means the "001" inverter has successfully establish communication with WiFi200.

  • Page 65: Troubleshooting

    INVT iMars MG series grid-tied solar inverters Troubleshooting 7 Troubleshooting This chapter describes the fault alarm and fault code for quick troubleshooting. - 64 -...
  • Page 66 INVT iMars MG series grid-tied solar inverters Troubleshooting Table 7-1 Fault code Fault Message Instruction Fault analysis code PV1 undervoltage A001 Input UV Input undervoltage PV2 undervoltage A002 Bus UV Bus undervoltage DC input A003 Grid UV AC undervoltage Low voltage of the public grid...
  • Page 67 INVT iMars MG series grid-tied solar inverters Troubleshooting Fault Message Instruction Fault analysis code Master-slave DSP communication Internal E009 Int Comm disabled communication fault Error of master-slave DSP check bit Huge leakage Huge leakage current of the system E010 ILeek Fail...

  • Page 68: Contact Us

    INVT iMars MG series grid-tied solar inverters Contact us 8 Contact us Shenzhen·China SHENZHEN INVT ELECTRIC CO., LTD Add: No. 4 Building, Gaofa Scientific Industrial Park, Longjing, Nanshan District, Shenzhen, China Tel: +86 755 86312953 Email: invtsolaros@invt.com.cn; invtsolarcn@invt.com.cn Website: www.invt.com Solar website:www.invt-solar.com...
  • Page 69 Please mail or email a copy of this warranty registration card to: Address：4# Building, Gaofa Industrial Park, Longjing, Nanshan District, Shenzhen, China 518055 Tel：86-755-86312953 Fax：86-755-86312880 Website：www.invt.com Email：inverter@invt.com.cn All rights reserved by INVT. This information is subject to changes without notice.
  • Page 70 Procedure in the case of servicing： Contact INVT or the authorized service agencies if your product is in the course of a defect or fault during the warranty period. To file warranty claims and for claim management with INVT, you are required to supply us with following information and documents regarding the fault inverter: - Copy of the invoice and warranty certificate for the inverter.
  • Page 71 Quality certification Inspector: This product has passed inspection of our quality control and assurance department, and its performance parameters meet the "User Manual" standard. Allowed to ex-factory sales! Shenzhen INVT Electric Co.,...
  • Page 72 Industrial Automation: Electric Power: 6 6 0 0 1 - 0 0 0 9 8 201503 (V2.0)

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