INVT iMars Operation Manual

Operation Manual iMars

Grid-tied Solar Inverter

INVT Solar Technology (Shenzhen) Co., Ltd.

Preface

The manual is intended to provide detailed information of product information, installation, application, trouble shooting, precautions and maintenance of iMars series grid-tied solar inverters. The manual does not contain all the information of the photovoltaic system. Please read this manual carefully and follow all safety precautions seriously before any moving, installation, operation and maintenance to ensure correct use and high performance of operation on the inverter.

The use of iMars series grid-tied solar inverters must comply with local laws and regulations on grid-tied power generation.

The manual needs to be kept well and be available at all times.

All rights reserved. The contents in this document are subject to change without notice.

There may be data deviation because of product improving. Detailed information is in accordant with the final product.

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iMars grid-tied solar inverters Contents

Contents

Preface .................................................................................................................................................. 1

Contents................................................................................................................................................ 2

1 Safety precautions .............................................................................................................................. 4

1.1 Icons ........................................................................................................................................ 5

1.2 Safety guidelines ..................................................................................................................... 5

1.2.1 Delivery and installation....................................................................................................................6

1.2.2 Grid-tied operation ............................................................................................................................7

1.2.3 Maintenance and inspection ............................................................................................................7

1.2.4 What to do after scrapping ...............................................................................................................8

2 Product overview................................................................................................................................ 9

2.1 Solar grid-tied power generation system .............................................................................. 10

2.2 Products appearance ............................................................................................................ 12

2.3 Nameplate ............................................................................................................................. 13

2.4 Products modules.................................................................................................................. 14

2.5 Dimensions and weight ......................................................................................................... 15

3 Storage ............................................................................................................................................. 17

4 Installation ....................................................................................................................................... 18

4.1 Unpacking inspection ............................................................................................................ 19

4.2 Before installation .................................................................................................................. 21

4.2.1 Installation tools ........................................................................................................................... 21

4.2.2 Installation place ......................................................................................................................... 21

4.2.3 Cable specification ..................................................................................................................... 22

4.2.4 Miniature circuit breakers .......................................................................................................... 23

4.3 Mechanical installation .......................................................................................................... 24

4.3.1 Installation of single-phase inverter .............................................................................................. 24

4.4 Electrical installation.............................................................................................................. 26

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iMars grid-tied solar inverters Contents

4.4.1 Connection of solar modules .................................................................................................... 27

4.4.2 AC connection ............................................................................................................................. 29

5 Operation ......................................................................................................................................... 30

5.1 Inspection before operation .................................................................................................. 31

5.2 Grid-tied operation ................................................................................................................ 31

5.3 Stopping................................................................................................................................. 32

5.4 Daily maintenance ................................................................................................................. 32

5.4.1 Regular maintenance ................................................................................................................. 32

5.4.2 Maintenance guide ..................................................................................................................... 33

6 Display panel .................................................................................................................................... 34

6.1 LED indicators ....................................................................................................................... 35

6.2 Operation panel ..................................................................................................................... 36

6.3 LCD screen............................................................................................................................ 37

6.4 Functions operation ............................................................................................................... 38

6.4.1 Monitoring parameters .................................................................................................................. 38

6.4.2 History ............................................................................................................................................. 38

6.4.3 Statistics .......................................................................................................................................... 39

6.4.4 Parameter settings ......................................................................................................................... 39

6.4.5 System Information ........................................................................................................................ 48

6.4.6 Faults ............................................................................................................................................... 48

6.4.7 Inverter control ............................................................................................................................... 48

6.5 Grid certification choice ......................................................................................................... 49

7 Monitoring communication............................................................................................................... 52

7.1 Standard communication ...................................................................................................... 53

7.2 Optional communication ....................................................................................................... 54

8 Troubleshooting ............................................................................................................................... 55

9 Contact us......................................................................................................................................... 59

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iMars grid-tied solar inverters Safety precautions

1 Safety precautions

iMars series grid-tied solar inverters are designed and tested strictly in accordance with relevant international safety standards. As an electrical and electronic device, all relevant safety regulations must be strictly complied during installation, operation, and maintenance. Incorrect use or misuse may result in ：

 Injury to the life and personal safety of the operator or other people.

 Damage to the inverter or other property belonging to the operator or other people.

In order to avoid personal injury, damage to the inverter or other devices, please strictly observe the following safety precautions.

This chapter mainly describes various waring symbols in operation manual and provides safety instructions for the installation, operation, maintenance and use of the iMars series grid-tied solar inverters.

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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:

Icons Abbreviation

Danger

Warning

Do not

Name

Danger

Warning

Electrostatic sensitive

Instruction

Serious physical injury or even death may occur if not follow the relative requirements

Physical injury or damage to the devices may occur if not follow the relative requirements

Damage may occur if not follow the relative requirements

Hot sides

Hot sides

Sides of the device may become hot. Do not touch.

Note Note

The procedures taken for ensuring proper operation.

Note

1.2 Safety guidelines

 After receiving this product, first make sure that the product is well packaged.

If you have any questions, please contact the shipping company or local distributor immediately.

 Installation of PV inverters must be performed by professional technician who has been specially trained, thoroughly read and familiar with all the contents of this manual and familiar with the safety requirements of the electrical system.

 Do not carry out any wiring and inspection or changing components when the power supply is applied.

 Ensure that there is no electromagnetic interference from other electrical and electronic equipment 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.

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 The temperature of individual parts or the enclosure of the inverter –especially the heat sink may become hot in normal operation. There is a danger of burning.

Do not touch.

 It must be reliably grounded before operation.

 Do not open the cover of inverters unauthorized. The electrical parts and components inside the inverter are electrostatic. Take measurements to avoid electrostatic discharge during relevant operation.

 The inverter must be reliably grounded.

 Ensure that DC and AC side circuit breakers have been disconnected and wait at least 5 minutes before wiring and checking.

Note: Technical personnel who can perform installation, wiring, commissioning, maintenance, troubleshooting and replacement of the iMars series grid-tied solar inverters must meet the following requirements:

 Operators need professional training.

 Operators must read this manual completely and master the related safety precautions.

 Operators need to be familiar with the relevant safety regulations for electrical systems.

 Operators need to be fully familiar with the composition and operating principle of the entire grid-tied photovoltaic power generation system and related standards of the countries/regions in which the project is located.

 Operators must wear personal protective equipment.

1.2.1

Delivery and installation

 Keep the package and unit complete, dry and clean during storage and delivery.

 Please remove and install the inverter with two or more people, because of the inverter is heavy.

 Remove and install the inverter with appropriate tools to ensure safe and normal operation and avoid physical injury or death. The people also need mechanical protective measures, such as protective shoes and work clothes.

 Only qualified electricians are allowed to install the inverter.

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 Do not put and install the inverter on or close to combustible materials.

 Keep the installation site away from children and other public places.

 Remove the metal jewelry such as ring and bracelet before installation and electrical connection to avoid electric shock.

 Do cover solar modules with light-tight materials before electrical connection.

Exposed to sunlight, solar modules will output dangerous voltage.

 The inverter input voltage can not exceed the maximum input voltage; otherwise inverter damage may occur.

 The positive and negative pole of solar modules can not be grounded, otherwise irrecoverable damage may occur.

 Ensure the proper grounding of the inverter, otherwise, improper connection or no grounding may cause stop of the inverter.

 Ensure reliable installation and electrical connection.

Note: iMars series grid-tied solar inverters are only for crystalline silicon solar modules.

1.2.2 Grid-tied operation

 Only qualified electricians are allowed to operate the inverter under the permission of local power departments.

 All electrical connections must meet the electrical standards of the countries/regions in which the project is located.

 Ensure reliable installation and electrical connection before operation.

 Do not open the cover of inverter during operation or voltage is present.

1.2.3 Maintenance and inspection

 Only qualified electricians are allowed to perform the maintenance, inspection, and components replacement of the inverter.

 Contact with the local dealer or supplier for maintenance.

 In order to avoid irrelevant personnel from entering the maintenance area during maintenance, temporary warning labels must be placed to warn non-professionals to enter or use fence for isolation.

 Firstly disconnect all power supplies of the grid to the inverter before any maintenance, and then disconnect the DC breakers and wait for at least 5 minutes until the inverter is discharged before maintenance.

 Please follow electrostatic protection norms and take correct protective

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iMars grid-tied solar inverters Safety precautions measures because of the electrostatic sensitive circuits and devices in the inverter.

 Do not use parts and components not provided by our company during maintenance.

 Restart the inverter after settling the fault and problem which may affect the safety and performance of the inverter.

 Do not get close to or touch any metal conductive part of the grid or inverter, otherwise electric shock, physical injury or death and fire may occur. Please do not ignore the warning icons and instructions with “electric shock”.

1.2.4 What to do after scrapping

 Do not dispose of the inverter together with household waste. The user has the responsibility and obligation to send it to the designated organization for recycling and disposal.

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iMars 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 series grid-tied solar inverters.

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2.1 Solar grid-tied power generation system

2.1.1 Application

The photovoltaic grid-tied power generation system consists of solar modules, grid-tied inverter, metering devices and public grid.

Figure 2.1 Application of iMars series grid-tied solar inverters

Grid-tied solar inverter is the core of photovoltaic power generation system. The solar energy can be converted into DC electric energy through solar modules and then be changed into sinusoidal

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 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.

 The recommended solar modules need to comply with IEC61730 Class A standard.

2.1.2 Supported grid connection structure iMars series grid-tied solar inverters support TN-S, TN-C, TN-C-S and TT grid connection.

When applied to the TT connection, the N-to-PE voltage should be less than 30V.

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Figure 2.2 Type of grid

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2.2 Products appearance

Figure 2.3 Products appearance

Table 2-1 Parts instruction

No. Name Instruction

7

8

5

6

3

4

1

2

9

Cover

LED display panel

DC switch

DC input port

AC terminal

Communication port

Cooling chamber

Radiator

Name plate

LED indicators

On –off of the DC input (optional)

For the connection of solar modules

For the connection of AC output

RS485 and EXT communication port

For rated parameters and safety precautions of the inverter

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2.3 Nameplate

Inverter nameplate as shown in Figure 2.4

Figure 2.4 Inverter nameplate

（ 1 ） Trademark and product type

（ 2 ） Model and important technical parameters

（ 3 ） Certification system of the inverter confirming

（ 4 ） Serial number, company name and country of origin.

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Icons Instruction

 TUV certification mark. The inverter is certified by TUV.

 CE certification mark. The inverter complies with the CE directive.

 CQC certification mark. The inverter is certified by CQC.

 EU WEEE mark. Cannot dispose of the inverter as household waste.

2.4 Products modules

Table 2-2 Models of iMars grid-tied solar inverter

Product name

Single-phase (L, N, PE)

Single-phase grid-tied solar inverter

Model iMars MG750TL iMars MG1KTL Single-phase grid-tied solar inverter

Single-phase grid-tied solar inverter iMars MG1K5TL

IMars MG2KTL Single-phase grid-tied solar inverter

Single-phase grid-tied solar inverter iMars MG3KTL iMars MG4KTL Single-phase grid-tied solar inverter


Single-phase grid-tied solar inverter iMars MG4K6TL iMars MG5KTL

Rated output power

750

1000

1500

2000

3000

4000

4600

5000




Single-phase grid-tied solar inverter iMars MG3KTL-2M iMars MG4KTL-2M iMars MG4K6TL-2M iMars MG5KTL-2M

3000

4000

4600

5000

Single-phase grid-tied solar inverter iMars MG6KTL-2M

Note: The technical parameters of grid-tied solar inverter refer to the appendix.

6000

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2.5 Dimensions and weight

Figure 2.5 Inverter dimensions

Table 2-3 Inverter dimension and net weight

Model

MG750TL / MG1KTL / MG1K5TL /

MG2KTL / MG3KTL

MG4KTL / MG4K6TL / MG5KTL

MG3KTL-2M / MG4KTL-2M /

MG4K6TL-2M/

MG5KTL-2M / MG6KTL-2M

H (mm) W (mm) D (mm)

280 300 138

365

420

360

360

150

150

Net weight (kg)

9.5

15

17

15


D

H

W

Figure 2.6

Paper packages dimension

Table 2-4 Packages dimension and gross weight

Model

H

(mm)

W

(mm)

D

(mm)

Gross weight (kg)

MG750TL / MG1KTL /

MG1K5TL / MG2KTL /

MG3KTL

MG4KTL / MG4K6TL /

MG5KTL

MG3KTL-2M / MG4K6TL /

MG4KTL-2M / MG4K6TL-2M /


411

518

573

418

480

480

251

284

284

11

17

19

Packagin g Material

Paper

Paper

Paper

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iMars grid-tied solar inverters

Storage

3 Storage

If the inverter is not put into use immediately, the storage of inverter should meet the following requirements:

 Do not remove the outer packing.

 The inverter needs to be stored in a clean and dry place, and prevent the erosion of dust and water vapor.

 The storage temperature should be kept at -40 ℃ ~+70 ℃ , and the relative humidity should be kept at 5%RH~95%RH.

 The stacking of inverters is recommended to be placed according to the number of stacking layers in the original shipment. Place the inverter carefully during stacking to avoid personal injury or equipment damage caused by the falling of equipment.

 Keep away from chemically corrosive substances that may corrode the inverter.

 Periodic inspections are required. If damages are found by worms and rats, or packages are found to be damaged, the packaging materials must be replaced in time.

 After long-term storage, inverters need to be inspected and tested by qualified personnel before put into use.

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iMars grid-tied solar inverters Installation

4 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. Only qualified electricians are allowed to install the inverter.

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4.1 Unpacking inspection

The inverter has been thoroughly tested and rigorously checked before delivery, but damage may still occur during transportation. Before unpacking, check carefully whether the product information in the order is consistent with that on the nameplate of the package box and whether the product package is intact. If any damage is detected, please contact the shipping company or the supplier directly. Please also provide photos of the damage to get our fastest and best service.

Put the inverter into the package if not used and protect it from humidity and dust.

Check as following after unpacking:

(1) Ensure no damage to the inverter unit.

(2) Ensure the operation manual, port and installation accessories in the package.

(3) Ensure no damage or loss to the items in the package.

(4) Ensure the information of the order is the same as that of the name plate.

(5) The standard delivery list is shown as below.

Single-phase inverter packing list:

Figure 4.1 Single-phase inverter packing list

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Table 4-1 Detailed delivery list of single-phase inverter

No. Name

1

MG750TL / MG1KTL / MG1K5TL / MG2KTL /

MG3KTL / MG4KTL

/ MG4K6TL / MG5KTL /


MG4K6TL-2M / MG5KTL-2M / MG6KTL-2M inverter

2 Installation bracket

3 Operation manual

4 Bolt M5*20

5

6

7

8

Expansion bolts M6*60

Communication connector

DC connector

AC connector

Quantity

1

1

1

2


MG2KTL / MG3KTL:3

MG4KTL / MG4K6TL/MG5KTL /


MG4K6TL-2M / MG5KTL-2M /

MG6KTL-2M: 4

1


MG2KTL / MG3KTL:1 pair

MG4KTL / MG4K6TL / MG5KTL /


MG4K6TL-2M / MG5KTL-2M /

MG6KTL-2M:2 pairs

1

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4.2 Before installation

4.2.1 Installation tools

Table 4-2 Tools list

5

6

3

4

No.

1

2

7

8

Installation tools

Marking pen

Electrodrill

Instruction

Mark the installation hole

Drill in the bracket or wall

Hammer

Monkey wrench

Hammer on the expansion bolts

Fix the installation bracket

Allen driver Fasten the screws, remove and install AC wiring box

Straight screwdriver For AC wiring

Megger

Multimeter

Measuring insulation performance and impedance

Check the circuit and AC and DC voltage

9 Electric iron Weld communications cable

10 Wire crimper Crimp DC terminals

4.2.2 Installation place

Select installation place based on the following considerations:

(1) The height of the installation position should ensure that the line of sight is at the same level as the LCD for viewing the parameters of inverter conveniently.

(2) Select a well ventilated place sheltered from direct sun radiation and rain.

(3) Allow sufficient space around the inverter to enable easy installation and removal from the mounting surface and air convection. Refer to Figure 4.2.

(4) The ambient temperature of installation should be -25°C~60°C

(5) The installation site should be away from electronic devices which can generate strong electromagnetic interference.

(6) The inverter needs to be installed on a firm and sturdy surface, such as wall and metal bracket and so on.

(7) The installation surface should be perpendicular to the horizontal line. Refer to Figure 4.3.

(8) The installation should ensure that the inverter is reliably grounded, and the material of grounded metal conductor should be consistent with the metal material reserved for the grounding of the inverter.

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Figure 4.2 Installation space

Ensure there is sufficient space for heat-releasing. In generally, below space requirement should be met:

Table 4-3 Detailed installation space

Minimum clearance

Lateral 200mm

Top 450mm

Bottom 450mm

Figure 4.3 Installation position

 Do not open the cover of the inverter or replace any part as incomplete inverter may cause electric shock and damage the device during operation.

4.2.3 Cable specification

In order to regulate and compatible with the inverter AC/DC connector or terminal block specifications, below requirements on the AC/DC cable connected

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iMars grid-tied solar inverters Installation to corresponding inverter should be fulfilled:

Table 4-4 Cable specifications

Model

DC side

Min cross-sectional area mm²(length≤50 m)

Min cross sectional area mm²

(Length>50m)

MG750TL / MG1KTL /

MG1K5TL / MG2KTL /

MG3KTL

MG4KTL / MG4K6TL /

MG5KTL / MG3KTL-2M

/ MG4KTL-2M /

MG4K6TL-2M /

MG5KTL-2M/MG6KTL-2M

4.2.4 Miniature circuit breakers

4

4

4

4

AC side

Mini cross-sectional area mm ²

L

4

6

N/PE

In order to ensure safe operation of the inverter and circuits, it is recommended to configure corresponding micro breaker or fuse on the DC input side and AC output side of the inverter. Table

4-5 is the requirements for recommended micro breaker:

Table 4-5 Specifications of micro breaker:

Model

MG750TL/MG1KTL/

MG1K5TL

MG2KTL

MG3KTL/ MG3KTL-2M

MG4KTL/ MG4KTL-2M

MG4K6TL-2M/ MG5KTL-2M

MG4K6TL /

MG5KTL/MG6KTL-2M

DC input

Recommended DC breakers

DC500V, C10A, 2P

DC500V, C16A, 2P

DC500V, C16A, 2P

DC600V, C20A, 2P

DC500V, C20A, 2P

DC600V, C25A, 2P

AC output

Recommended AC breakers

AC240V, C10A, 2P

AC240V, C16A, 2P

AC240V, C20A, 2P

AC240V, C25A, 2P

AC240V, C32A, 2P

AC240V, C32A, 2P

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4.3 Mechanical installation

The material for fixing the inverter and the installation mode vary with the different installation sites.

It is recommended to install the inverter vertically to the firm wall or metal bracket. Here we take wall installation as an example to introduce the installation matters of the inverter.

As shown in the Fig 4.4, the overall installation of the inverter should be vertical to the horizontal surface.

4.3.1 Installation of single-phase inverter

Figure 4.4 Installation bracket of 0.75~3KW inverter

Figure 4.5 Installation bracket of 4~6KW inverter

Table 4-6 Size of installation bracket

Model

Installation hole

A(mm)*B(mm)


MG2KTL / MG3KTL

MG4KTL / MG4K6TL/ MG5KTL/

MG3KTL-2M / MG4KTL-2M / MG4K6TL-2M


195

260*45

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Table 4-7 Instruction of installation bracket

No.

1

Structure instruction

Installation hole Φ 8

2 Assembling bolt hole M5

Installation steps:

(1) Firstly, take down the installation bracket from the package.

(2) Place the bracket at the appropriate height and position on the wall. Mark the punching position according to the fixing hole. Drill holes of 70mm deep and install the expansion screw. Fix the bracket on the expansion bolt according to the arrow instruction. Ensure the installation is firm enough, the tightening torque is 8Nm.

(3) Lift the inverter to suspend it on the installation bracket through M8 hex socket cap screws.

(4) Finally, fasten the inverter and the bracket with M5 screws and tighten the screws to 2 Nm. For firm installation, the operators cannot release the device until the inverter is installed on the bracket firmly.

Figure 4.6 Installation of inverter

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4.4 Electrical installation

This section describes the electrical connection related content and related safety precautions.

Figure 4.7 is the schematic diagram of the photovoltaic grid-connected system.

Note

Figure 4.7 PV grid-connected system diagram

 Electrical connection must be carried out by professional technicians as wrong operation may cause damage to the device, physical injuries or even death during system operation.

 All the electrical installation must conform to the national and local electrical safety regulations.

 Ensure all the cables are installed firmly according to the specified safety requirements and free from any damage.

 It is not allowed to close the AC and DC breakers before the inverter is electrically connected.

 Read and follow the instructions provided in this section.

Strictly follow the requirements when operating.

 Always note the rated voltage and current defined in this manual. Never exceed the limits.

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4.4.1 Connection of solar modules

Figure 4.8 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.

 PV strings can be connected to inverter only after protection measures which conform to local electrical regulations are taken and the technical parameters in this manual are fulfilled.

(2) Connect the output cables of solar modules to the DC connector of inverter as Figure

4.8 shows. Loose the nut of connector and remove the isolation layer of the DC cable for about 8-10mm. Insert the conductor part into the appropriate position of the connector, crimp the MC4 DC terminal of the inverter and tighten the nut with a torque of

2.5-3Nm. The wiring of negative pole is the same as that of the positive pole. Ensure the poles of solar modules are well connected with the connectors;

 The PV string connected to iMars series inverter must adopt the DC connector configured especially for the inverter, do not use other connection devices without authorization from our company, otherwise damage to the device, unstable operation or fire may occur and our company will not undertake quality assurance or assume any direct or joint liability thereof.

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(3) After the DC connector is connected, use a multimeter to measure the voltage of the DC input string, verify the polarity of the DC input cable, and ensure that the voltage of each string is within the allowable range of the inverter, as shown in Figure 4.9.

Figure 4.9 DC input voltage measuring

(4) Connect the DC connector with the inverter and ensure tightly-fastened;

(5) When removing the DC connector from the inverter, insert the head of the straight screwdriver into the raised hole in the middle of the connector, and force the movable end of the connector to exit.

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4.4.2 AC connection

Figure 4.10 AC connection of single-phase inverter

AC 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;

(2) As shown in Figure 4.10, connect and fasten L, N and PE conductors of the single-phase AC grid to AC terminal and tighten to 0.5 Nm. Assemble the AC terminal and tighten to 2.5-3 Nm, then connect the terminal to the AC port of the inverter.

(3) Connect the DC output cable of the PV module to the DC connector which provided by our company, and then connect the DC connector to the DC terminal of the inverter.

 Only qualified cables under the local electrical safety laws and regulations and comply with the technical parameters of this manual are allowed to connect to the inverter.

 Only with the permission of the local electric power company can the inverter be connected to the utility grid.

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iMars grid-tied solar inverters Operation

5 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.

30


5.1 Inspection before operation

The following items must be checked strictly before running the PV grid-connected inverter

(including but not limited to):

(1) Ensure the installation site meet the requirement mentioned in section 4.2.2 for easy installation, removing, operation and maintenance;

(2) Ensure the mechanical installation meet the requirement mentioned in section4.3;

(3) Ensure the electrical installation meet the requirement mentioned in section 4.4;

(4) Ensure all switches are “off”;

(5) Ensure the open circuit voltage of the PV module complies with the DC side parameter requirements(in the appendix) of inverter;

(6) Ensure all electrical safety precautions are clearly-identified on the installation site.

 In order to ensure a safe, normal and stable operation of the PV power generation system, all the newly installed, renovated and repaired PV grid-connected power generation system and its grid-connected inverter must undergo inspection before running.

5.2 Grid-tied operation

Start the inverter according to below steps to achieve grid-connected operation of the inverter:



Must to select the country to set grid-connected standard during the initial operation of the inverter, see details at section 6.5.

Note  Keep the power-on state of the inverter for at least 30 minutes, and complete the charging of built-in clock battery of the inverter to ensure the clock can run normally!

Please start the inverter as follows:

(1) Ensure the requirements mentioned in section 5.1 are met;

(2) Switch on the breakers at the AC side;

(3) Switch on the integrated DC switch;

(4) Switch on the switch on the DC side;

(5) Observe the LED indicator state of the inverter and the information displayed by LCD.

Refer to chapter 6 for LED state indicator and LCD display information.

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Run

Green indicator flickers, other indicators are off: Inverter is powered on and under self-inspection, wait for enough light to fulfill grid-connected condition;

Run

Green indicator on, others off: The inverter is in power generation after self-inspection----successful commissioning.

“Warn” or “Fault” indicator is on or flickers: inverter is powered on but system fault occur.

Refer to section 6.3 to check the fault code in LCD display, stop the inverter as per section

5.3, and rule out faults according to chapter 8. After all the faults are removed, repeat the operations in chapter 5.

5.3 Stopping

When it is necessary to carry out power-off maintenance, inspection and fault elimination on the inverter, stop the inverter according to the following steps:

(1) Disconnect the breaker on inverter public grid AC side;

(2) Disconnect the integrated DC switch of the inverter;

(3) Disconnect the circuit switch on PV string DC input side;

(4) Wait for at least 5 minutes until the internal parts of the inverter are fully discharged, and complete the stop operation.

5.4 Daily maintenance

In solar PV grid-connected power generation system, iMars series grid-connected solar inverter can realize grid-connected power generation and stop/start operations automatically day and light in whatever seasons. In order to safeguard and prolong the service life of the inverter, it is necessary to carry out daily maintenance and inspection on the inverter besides using the inverter strictly according to this manual.

5.4.1 Regular maintenance

32


Maintenance contents

Store the operation data

Check inverter operation status

Clean the inverter

Check electrical connection

Maintenance methods

Maintenance cycle

Use real-time monitoring software to read inverter running data, regularly back up all inverter running data and stats. Check the monitoring software and inverter LCD screen to make sure the parameters are set correctly.

Check to make sure the inverter installation is solid, no damage or deformation. When inverter running, check to make sure the sound and variables are normal. When inverter running, use thermal imager to check whether the case cooling is normal.

Check the ambient humidity and dust around inverter, clean the inverter when necessary.

See Section 5.4.2.

Check whether system cable connection and inverter terminal block are loosened, if yes, secure them again in the manner specified in section 4. Check whether the cable is damaged, and whether the cable skin touched by the metal surface is cut.

Once each quarter

Every six months

Every six months

Every six months

Check the security features

Check the inverter LCD and stop function of the system. Simulate stop operation and check the stop signal communication. Check the warning marks and replace them if necessary.

Every six months

5.4.2 Maintenance guide

Clean the inverter

Cleaning procedure is as follows:

(1) Disconnect the input and output switches.

(2) Wait ten minutes.

(3) Use a soft brush or a vacuum cleaner to clean the surface and the inlet and outlet of the inverter.

(4) Repeat Section 5.1 operating content.

(5) Restart the inverter.

33

iMars grid-tied solar inverters Display panel

6 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.

34


6.1 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; LED indicators are on, off and blinking. Please refer to table 6-1 for detailed state of inverter and LED indicators state.

“ ”: LED indicator is off;

“ ” (green), “ ” (yellow), “ ” (red): LED indicator is blinking at every 0.25S or 0.5S;

“ (Green), “ ” (yellow), “ ” (red): LED indicator is on.

Table 6-1 Inverter state and LED indicators

Inverter state LED indicators Description

Stand-by

Run

Warn

Fault

No power on. All indicators off.

Self-inspection

Run

Warn

Fault

Run

Warn

Fault

Green indicator blinks in every 0.25s, others off.

Power on and ready for self-inspection

Power generation

Recoverable fault

Run

Warn

Fault

Run

Warn

Fault

Green indicator keeps on, others off.

Grid-tied power generation.

(1) Grid-tied power generation, but clock fault (A007);

(2) Grid-tied power generation, but DC input fault

(A001 or E001);

(3) Grid-tied power generation ， but fan fault(E006 or

E012);

Green and yellow indicator keeps on, others off.

Inverter stand-by. The public grid fault(A001, A003,

A004, A005or A006);

Yellow indicator blinks in every 0.5s, others off

35


Inverter state LED indicators

Unrecoverable fault

Run

Warn

Fault

Run

Warn

Fault

Run

Warn

Fault

Description

(1) Inverter stand-by. Temperature abnormal(E006);

(2) Inverter stand-by. DC input fault (E001);

Yellow indicator keeps on, others off

Hardware or software fault (E003, E004, E005, E008,

E009, E011, E013 or E015). De-couple the inverter from the system before maintenance.

Red indicator blinks in every 0.5s, others off

Current-leakage or unqualified output power energy of the inverter (E007, E010, E014, E017, E018 or E020).

De-couple the inverter from the system before maintenance.

Red indicator keeps on, others off

Artificial turned off

Run

Warn

Fault

Stop after the communication or panel command. All indicators are on.

Note Please refer to chapter 6 and 8 for detailed fault information and troubleshooting.

6.2 Operation panel

There are 4 buttons on the panel:

(1) “ESC”, exit and return ;

(2) “ ”, back to the front page and data increasing;

(3) “ ” ， to the next page and data decreasing;

(4) “ENT”, enter.

The machine can be turned on and off by pressing the buttons: press "ESC" and "ENT"(about 3 seconds) at the same time, and then the quick start-up and stop is available.

36


6.3 LCD screen

Figure 6.1 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. But it can be activated by pressing any button. Press “ENT” to enter into the main interface if the background illumination is on, as shown in Figure 6.3. All parameters can be viewed and set on the interface.

There are main interface and menu interfaces on the LCD screen, of which the main interface is the default one after power on, while the menu interfaces are used to watch and set parameters or other manual operation, such as viewing the monitoring parameters, history record, system information, statistics and fault information and setting the displayed language, time, communication address, password and factory defaults.

Text Parameter

Display Area

Status Area Fault Code

Figure 6.2 Main interface

The main interface of the LCD screen is shown as the Figure above:

(1) The curve graph display area displays the power change curve of current day;

(2) Text parameter display area displays the key running parameters of current inverter operation, which displays three rows of parameters every time. Under running or sleep state of the inverter, the displayed content rolls up per screen at 3s interval; press “ ” or

“ ” to look through the displayed content;

37


(3) State display area displays current running state of the inverter, which can display

“self-inspection”, “grid-connected power generation”, “alarm”, “fault”, “OFF” state;

(4) Dynamic fault code and menu entrance. When the state display area displays “alarm” or

“fault”, the dynamic fault code area will display corresponding fault code (display up to 8 fault codes).

6.4 Functions operation

Most of the parameters can be viewed and set through the LCD screen and operation panel.

M a i n M e n u

M o n i t P a r a m

S t a t i s t i c s

S e t u p

S y s t e m I n f o

F a u l t I n f o

Figure 6.3 Main interface

6.4.1 Monitoring parameters

Press “ ” and “ ” in the main interface to select “Monit Param”, and then press “ENT” to view the parameters which is shown in Figure 6.4. Go the front or next page through “ ” and “ ” and return through “ESC”.

C u r r e n t S t a t e

E - t o d : 0 W h

$ - t o d : € 0 . 0 0

P - i n : 0 . 0 0 k W

Figure 6.4 Monitoring parameters

6.4.2 History

Press “ ” and “ ” in the main interface to select “History”, and then press “ENT” to view the parameters which is shown in Figure 6.5.

H i s t o r y 0

2 0 1 2 / 0 1 / 0 5 1 1 : 3 2 : 1 6

A 0 0 5 : G r i d u n d e r f r e q

Figure 6.5 History parameters

“Historical record” can display 32 pieces of historical information, press “ ” or “ ” key to look

38

iMars grid-tied solar inverters Display panel through the historical information, press “ESC” to return. The number on the upper right corner of the first row is the number of historical record, the 2 nd

row (as shown in Fig 6.5) displays the date and time when fault occurred or restored, and the 3 rd

row displays detailed information of fault code. When the 3 rd

row displays in inverse color, it indicates fault occurred, otherwise it is fault restored.

6.4.3 Statistics

Press “ ” and “ ” in the main interface to select “Statistics”, and then press “ENT” to view the parameters which is shown in Figure 6.6.

S t a t i s t i c a l M e n u

L i f e t i m e

T o d a y

Figure 6.6 Statistic information

The information in table 6-2 can be viewed in the statistical menu.

Table 6-2 Statistic information

Content Detailed

Lifetime

Time statistics

Day statistics

Latest 7 days

Latest 1 month

Latest 30 days

Latest 1 year

Total operation time, total power produced, total power saved, total CO

2 reduction in lifetime

Total power produced, total power saved, peak power and total CO

2 reduction in statistical time

Total power produced, total power saved, peak power and total CO

2 reduction in current day

Total power produced, total power saved and total CO

2

reduction in latest 7 days


2

reduction in latest 1 month


2

reduction in latest 30 days


2

reduction in latest 1 year

6.4.4 Parameter settings

Press “ ” and “ ” in the main interface to select “Setup Menu”, and then press “ENT” to view the parameters which is shown in Figure 6.7.

39


S e t u p M e n u

A d d r e s s

C a s h / p r i c e

D a t e / T i m e

L a n g u a g e

Figure 6.7 Setting information

“Setup menu” can realize parameter setup shown in Table 6-3.

LCD menus:

40


41


Table 6-3 Parameters setting

Setting item LCD display

RS485

Address

User password

R S 4 8 5 A d d r e s s

U s e r P a s s w o r d

Instruction

Enter into the interface and edit the data through “ ” or “ ”. And then press

“ENT” again to the next bit. After editing the three bits, press “ENT” to save the edition and press “ESC” to exit.

Enter into the interface and edit the data through “ ” or “ ”. And then press

“ENT” again to the next bit. After editing the four bits, press “ENT” to save the edition and press “ESC” to exit.

42



Setup Cash

Setup

Date/Time

Language

Select

Country

Setup mode

S e t u p C a s h

V a l / k W h : 0 0 . 5 0 €

S e t u p D a t e / T i m e

T i m e : 1 2 : 1 4 : 3 0

Curr. Language : English

English Dutch

Chinese

German

Country

Germany

England

Australia

: Australia

Greece

Denmark

Holland

S e t u p M o d e l : I n d e p e n d

I n d e p e n d

P a r a l l e l

Instruction

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 setting interface with password.

Enter into the interface and edit the currency type and cash through “ ” or

“ ”. And then press “ENT” again to the next line. After editing the four bits, press

“ENT” to save the edition and press

“ESC” to exit.

The currency types include EUR, POD,

CNY and USD.

Enter into the interface and edit the date and time through “ ” or “ ”. And then press “ENT” again to the next line. After editing the four bits, press “ENT” to save the edition and press “ESC” to exit.

，

Enter into the interface and edit the language through “ ” or “ ”. And then press “ENT” again to save the edition and press “ESC” to exit.

The default language is English.

Enter into the interface and select country through “ ” or “ ”. And then press “ENT” again to save the edition and press “ESC” to exit.

The DC input mode includes

“independent” and “parallel”:

“independent mode” is the independent

MPPT of Track A and Track B; “parallel

43



User period

U s e r P e r i o d

E n d : 2 0 1 2 - 0 2 - 0 1

Instruction 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. It is only available during DC power on and AC power off.

Press “ ” or “ ” to select the setting mode and press “ENT” to save the setting or “ESC” to return.

If the situation of section 6.4.8 occurs, it is necessary to switch the DC input to

“parallel” mode.

Enter into the interface and edit the user period through “ ” or “ ”. And then press “ENT” again to the next bit. After editing, press “ENT” to save the edition and press “ESC” to exit.

Of which, the setting time and date needs to be later than the system setting, and the start time needs to be earlier than the end time.

The setting date and time is used for the statistical information.

44


Setting item Instruction LCD display

Input password

0000

Set power

P-Lmt

Mode

LmtPower set power

P.Factor

Limit Mode： Invalid

Invalid

Auto

Manual

Limit Power

100%

Power Factor

Grid Tied Mode

Normal Mode

Power Factor： 1.00

The password is needed when enter into the interface of “Set power”. Get the password from the supplier if necessary.

There are 3 submenus: ① P-Lmt Mode: invalid (limited power function is invalid),auto (special for single phase) ,manual (set the limit of output value manually); ② LmtPower: this function is only valid when the P-Lmt

Mode is manual, the percentage is that of the rated power and the setting range is from 10% to 100%; ③ Power factor: includes normal model (default value

“1”), current advanced mode and current hysteresis mode and the setting rage is

-0.9-0.99.

Input password

0000

Personal

Personal

MPP Start Volt

120V

MPPT Volt

The password is needed when enter into the personal interface. Get the password from the supplier if necessary. It can set

MPPT starting voltage from 120V to

160V under the submenu of MPPT start volt.

45


Setting item LCD display Instruction

Input password

0000

Run Param

UV Volt

Run Param

OV time

UV time

OV Volt

UF Freq

UF time

184V

ACUV Volt(phase volt)

0.20s

ACUV Time

263V

ACOV Volt(phase volt)

0.20s

ACOV Time

47.6Hz

ACUF Freqency

ACUF Time

0.20s

51.4Hz

ACOF Freqency

ACOF Time

0.20s

Password is required when enter into the interface of “Run Param”. Get the password from the supplier if necessary.

Set ACUV Volt, ACUV time and others under the related submenus, and then press “ ” and “ ” to modify, and finally press “ENT” to confirm.

46


Setting item Instruction LCD display

Input Password

0000

Run Param

Run Param

UV volt 1 OV time 1

UV time 1

OV volt 1

UF Freq 1

UF time 1

115V


ACUV Time

00.04s

309V


00.02s

ACOV Time

47.99Hz

ACUF Frequency

ACUF Time

00.12s

50.50hz

ACOF Frequency

00.12s

196V


ACUV Time

0.19s

ACOF Time

252V


ACOV Time

01.90s

49.49Hz

ACUF Frequency

ACUF Time

595s

50.2Hz

ACOF Frequency

ACOF Time

115s

Run Restart Time

060s

OFF

ON

Island protect:on

There are 2 protections under

G83/G59(UK) and PEA(Thailand) standards, and there is only one protection under other grid tied standard.

Set ACUV Volt, ACUV time and others under the related submenus, and then press “ ” and “ ” to modify, and finally press “ENT” to confirm.

Generally, it is only necessary to set

ACUV2, ACOV2 and ACUF2 value for

ACUV, ACOV and ACUF protection. And it is necessary to set ACOF1 and ACOF2 together for ACOF protection.

47


6.4.5 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 6.8.

System Information

Part No .

Serial No .

Soft Ver

Figure 6.8 System information

The system information include “product model”, “serial No.”, “software version” and “certificate version ”. If select "Software Version" in the "System Version", can view the inverter Version 1,

Version2, MCU Software Version, RS485 protocol and other information, as shown in Figure 6.9.

S y s t e m V e r

V e r s i o n 1 : V 1 . 0 5

V e r s i o n 2 : V 1 . 0 5

M C U V e r s i o n : V 1 . 0 5

Figure 6.9 System version

6.4.6 Faults

Press “ ” and “ ” in the main interface to review the fault history, and then press “ENT” to view the sub-menu which is shown in Figure 6.10.

F a u l t

2 : A 0 0 1 I n p u t u n d e r V o l t

3 :

Figure 6.10 Fault information

There are 8 pieces of fault information in the record which is shown in Figure 6.10. Otherwise it will display “No Fault!” Refer to section 6.4.2 for more detailed information.

6.4.7 Inverter control

Press “ ” and “ ” in the control interface, and then press “ENT” to view the sub-menu which is shown in Figure 6.11.

O n / O f f

C l e a r

C o n t r o l M e n u

F a c t o r y

R e s t a r t

Figure 6.11 Control interface

48


Refer to the table below for detailed information.

Table 6-4 Inverter control

Control item LCD display

On/Off control

O N

O F F

O n / O f f C t r l

Instruction

Control the “On/Off” through the panel.

Press “ ” and “ ” in the control interface to select the operation. Press

“ENT” to ensure the operation and press

“ESC” to return.

Restart

Record clear

R e s t a r t

P r e s s E N T t o e x e c u t e .

P r e s s E S C t o c a n c e l .

C l e a r a l l R e c o r d : S u r e ？



Restart the inverter through the panel.

And save the all settings and operation record.

Press “ENT” to ensure restarting and the inverter will begin to self-inspect or press

“ESC” to return.

Press “ENT” to ensure clear all records or press “ESC” to return.

“Record clear” is to clear all setting parameters through the panel, restore to the factory setting and save all history operation records.

“Restore to factory” is to clear all setting parameters and history operation records

Restore to factory

R e s t o r e t o F a c t o r y



through the panel, restore to the factory setting. Press “ENT” to ensure clear or press “ESC” to return.

6.5 Grid certification choice

Power on the inverter by DC input for the first time or after restore factory settings, the LCD screen will appear a list of countries, requiring the user to choose what country of use.

As shown below:

C o u n t r y : U n s e t

Germany G r e e c e

U K

A u s t r a l i a

D e n m a r k

H o l l a n d

C o u n t r y : U n s e t

G r e e c e C h i n a

D e n m a r k

H o l l a n d

T h a i l a n d

Other

49


Press the “ ” or “ ” button to select the country (refer to the below table), press the ENT button to complete the setting.

After finish the country setting, please follow the user manual required with the proper use of inverter.

Comparison Table: Available countries and their grid certification

No.

1

2

Country

Germany

UK

Certification

VDE0126& AR-N4105

G83/G59

Remark

5

6

3

4

Australia

Greece

Denmark

Holland

AS4777

VDE0126

TF3.2.1

C10/C11

7

8

China

Thailand

CQC

PEA

9 Other VDE0126

The user can change the country setting through the following ways:

LCD screen ： MENU → Main Menu: Setup → Setup Menu: Country → Country: p

A l a r m h

V - p v 1 : 0 0 0 . 0 V

I - p v 1 : 0 0 0 . 0 A

V - p v 2 : 0 0 0 . 0 V

0 1 . A 0 0 1 MENU

M a i n M e n u

M o n i t P a r a m S e t u p

H i s t o r y

S t a t i s t i c s

S y s t e m I n f o

F a u l t I n f o

A d d r e s s

S e t u p M e n u

D a t e / T i m e

K e y p a d P W D

C a s h / p r i c e

L a n g u a g e

C o u n t r y

C o u n t r y : C h i n a

Germany G r e e c e

UK

A u s t r a l i a

D e n m a r k

H o l l a n d

The user can query the grid certification which has been set through the following ways:

LCD Screen ： MENU→Main Menu: System Info→System Information: Cert. Area→Certificate Area

50

iMars grid-tied solar inverters Display panel p

A l a r m h

V - p v 1 : 0 0 0 . 0 V

I - p v 1 : 0 0 0 . 0 A

V - p v 2 : 0 0 0 . 0 V

0 1 . A 0 0 1 MENU

M a i n M e n u

M o n i t P a r a m S e t u p

H i s t o r y

S t a t i s t i c s

S y s t e m I n f o

F a u l t I n f o

S y s t e m I n f o r m a t i o n

P a r t N o .

C e r t . A r e a

S e r i a l N o .

R u n P a r a m

S o f t V e r

C e r t i f i c a t e A r e a

A S 4 7 7 7

51


7 Monitoring communication

This chapter describes the communication connection of inverter and monitoring system (Industrial master, private computers, smart phones and so on).

The standard communication mode of iMars grid-tied solar inverter is RS485 which includes

“RS485-M” and “RS485-S” ports. The RS485-M ports can communicate with private computers, smart phones and so on. The system monitoring solution is shown as Figure 7.1.

Figure 7.1 Monitoring system of inverter

52


7.1 Standard communication

Table 7-1 Pins on inverter instruction

Pin on inverter

1(Red)

2(Orange)

3(Brown)

4(Black)

Definition

+5VDC

A (RS485+)

B (RS485-)

GND

4 3 2 1

Figure 7.2 RS485 pin on inverter Figure 7.3 Communication connector

Connection steps:

(1) Connect the communication connector configured for the inverter to the RS485 terminal of the inverter, as shown in Fig 7.4;

Figure 7.4 Detailed connection

(2) According to Table 7-1, connect the communication connector pinout and the user's device, make sure the connection is correct.

(3) Please download the monitoring software “iMars WinExpert” and its operation instruction from our website.

53


7.2 Optional communication

The optional communication modes include the Ethernet, WiFi, GPRS and ENET, which also need corresponding communication parts and components as shown in Table 7-2.All operation parameters of the inverter are output from port “RS485-M” to the communication devices, finally transmitted to the monitoring system as standard Ethernet, WiFi, GPRS and ENET signal. See

Figure 7.1.

Table 7-2 Optional communication accessories

Optional accessories Inverter port Port of upper PC

Ethernet convert

WiFi converter

RS485-M

RS485-M

RJ45 pin

WiFi signal

GPRS converter

ENET converter

RS485-M

RS485-M

GPRS signal

Ethernet port

Please download the connection instruction, operation manual and commissioni ng tools on website.

Note: the optional accessories are not standard-configured, need to buy separately.

54

iMars grid-tied solar inverters Troubleshooting

8 Troubleshooting

This chapter describes the fault alarm and fault code for quick troubleshooting.

55

A011

E

E001

E003

E004

E005

E006

E007 iMars grid-tied solar inverters Troubleshooting

Table 8-1 Fault code

Fault code Message

A

A001

A002

A003

Input UV

Bus UV

Grid UV

A004

A005

A006

A007

A009

Grid OV

Grid UF

Grid OF

Clock Fail

Cmd Shut

Grid Loss

Instruction Fault analysis

Input undervoltage

Bus undervoltage

AC undervoltage

AC overvoltage

AC underfrequency

AC overfrequency

Clock alarm

Manual stutdown

The public grid disconnects.

PV1 undervoltage

PV2 undervoltage

DC input

Low voltage of the public grid

High voltage of the public grid

Low frequency of the public grid

High frequency of the public grid

Wrong setting

Stop by the operation panel or upper PC

Check if inverter AC connection is well

E008

E009

E010

E011

E012

Input OV

Bus OV

Boost Fail

Grid OC

OTP

Riso Low

IGBT drv

Int Comm

ILeek Fail

Relay Fault

Fan Fail

Input overvoltage

Bus overvoltage

Voltage-boost fault

AC overcurrent

Over temperature

Low isolation impedance

IGBT drive protection

Internal communication fault

Huge leakage current

Relay fault

Fan fault

DC input overvoltage

Internal bus voltage

Voltage-boost fault of the inverter

Internal AC overcurrent

Internal over temperature

Low isolation impedance of the external port system

IGBT drive protection of the inverter

Master-slave DSP communication disabled

Error of master-slave DSP check bit

Huge leakage current of the system or inverter

Internal relay fault

Internal fan fault

56


Fault code

E013

E014

E015

E018

E019

E020

Message

Eeprom

Dc inject

OutputShort

Input OC

Incnst

PowerReversed

Instruction

Memory error

High DC injection

Output short-circuit

Input overcurrent

Data consistency fault

DC power reversed

Fault analysis

Internal memory error

High DC injection during AC output

Output short-circuit

DC input overcurrent

Inconsistent grid voltage, frequency, leakage current or AC/DC injection

DC power reversed

57


If any problem, please contact with the supplier and provide following information:

 Model of the inverter: ;

 Serial No. of the inverter: ;

 System version: —— version 1: ;

—— version 2: ;

—— MCU software version: ;

 Fault code: ;

 Fault description

58

iMars grid-tied solar inverters Contact us

9 Contact us

China·Shenzhen

INVT Solar Technology (Shenzhen) Co., Ltd.

Address: Room 504, No. 7 Building, Gaofa Scientific Industrial Park, Longjing, Nanshan District,

Shenzhen, China

Service hotline: +86 400 700 9997

E-mail: [email protected]

INVT group website: www.invt.com

INVT solar website: www.invt-solar.com

59

iMars grid-tied solar inverters Technical parameters

Appendix

Technical parameters of single phase grid-tied solar inverter

Input(DC)

Output(AC)

System

Protection

Model

Max. DC voltage (V)

Starting voltage (V)

MPPT voltage range(V)

Rated DC input voltage range(V)

Number of MPPT/string per MPPT

Max. DC input power (W)

Max. DC current (A) X

Number of MPPT

Isc PV

Maximum backflow current

(inverter backflow to PV array)

DC switch

Rated output power(W)

MG750TL

400

60

60-400

100-320

1/1

900

8x1

8.8

0

MG1KTL

450

80

60-400

121-360

1/1

1200

9x1

9.9

0

MG1K5TL

450

80

80-410

165-360

1/1

1700

10x1

11

0

MG2KTL

450

120

100-410

180-360

1/1

2200

12 ×

0

1

13.2

MG3KTL

500

120

120-450

210-400

1/2

3300

15 ×

16.5

0

1

MG4KTL

600

120

120-550

240-500

1/2

4500

19 ×

21

0

1

Single-phase

MG4K6TL MG5KTL

600

120

120-550

240-500

1/2

5000

21 ×

23

0

1

600

120

120-550

250-500

1/2

5500

23 ×

25

0

1

MG3KTL-2M

600

120

120-550

180-500

2/1

3300

9 ×

9.9

0

2

× 2

MG4KTL-2M

600

120

120-550

200-500

2/1

4500

12 ×

13.2

×

0

2

2

MG4K6TL-2M

600

120

120-550

220-500

2/1

5000

13 ×

14.3

2

×

0

2

MG5KTL-2M

600

120

120-550

250-500

2/1

5500

15 ×

16.5

0

2

× 2

Voltage(V)/ frequency(Hz) range

Rated output current(A)

Maximum output overcurrent protection

Maximum output fault current

AC inrush current

Power factor

Harmonic distortion

Cooling

Maximum efficiency

European efficiency

MPPT efficiency

750

3.6

6.1

96.90%

96.00%

1000

4.5

7.6

97.20%

96.10%

1500

6.5

11.0

40A @ 19.5ms

Less than 10 A

97.30%

96.30%

2000

9

15.3

97.40%

96.50%

3000 4000 4600

Optional

5000 3000 4000

180~270Vac 、 50Hz(47~51.5Hz) / 60Hz(57~61.5Hz)

VDE0126& AR-N4105 、 AS4777.2/AS4777.3

、 CQC 、 G83-2 、 G59-3 、 C10/11 、 TF3.2.1

、 PEA

13 20 22 24 16 20

22.0

97.60%

96.50%

33.5

97.60%

96.50%

37.9

-0.95~+0.95 (Adjustable)

< 3% (At rated power

Natural cooling

97.40%

96.50%

40.2

99.9%

）

97.50%

96.50%

27.0

97.60%

96.50%

33.5

104A @ 37.2ms

Less than 2 A

97.30%

96.40%

4600

22

37.9

97.40%

96.50%

5000

24

40.2

97.40%

96.50%

Protection degree

Power consumption at night

Isolation mode

Protective class

IP65

< 1W

Transformerless

Overvoltage category

Inverter topology

Pollution degree

Operation temperature

Relative humidity

Max. altitude(m)

I

AC:III,PV:II

Non-isolated

-25 ℃ ~+60

3

（ Derate after 45 ℃）

4~100%,Condensation

2000 (Derate if the altitude ＞ 2000)

LED/ LCD, backlit display Displaying

System language

Communication

English, Chinese, German, Dutch

RS485 (standard),Ethernet, Handheld keypad; WiFi (optional)

DC terminal

Noise dB(A)

Installation mode

BC03A/ BC03B

≤ 25

Wall installation

Input overvoltage protection, input overcurrent protection, DC isolation monitoring, DC monitoring, grounding fault current monitoring, grid monitoring, island protection, short circuit protection, overheating protection etc.

60

MG6KTL-2M

600

120

120-550

200-500

2/1

6600

16 × 2

17.6

× 2

0

6000

26

52

97.40%

96.50%

INVT iMars Operation Manual

Operation Manual iMars

Grid-tied Solar Inverter

INVT Solar Technology (Shenzhen) Co., Ltd.

Preface

Contents

1 Safety precautions

1.1 Icons

1.2 Safety guidelines

2 Product overview

2.1 Solar grid-tied power generation system

2.2 Products appearance

2.3 Nameplate

Icons Instruction

2.4 Products modules

2.5 Dimensions and weight

Storage

3 Storage

4 Installation

4.1 Unpacking inspection

4.2 Before installation

4.3 Mechanical installation

4.4 Electrical installation

5 Operation

5.1 Inspection before operation

5.2 Grid-tied operation

Must to select the country to set grid-connected standard during the initial operation of the inverter, see details at section 6.5.

5.3 Stopping

5.4 Daily maintenance

6 Display panel

6.1 LED indicators

6.2 Operation panel

6.3 LCD screen

6.4 Functions operation

6.5 Grid certification choice

7 Monitoring communication

7.1 Standard communication

7.2 Optional communication

8 Troubleshooting

9 Contact us

China·Shenzhen

Appendix

Technical parameters of single phase grid-tied solar inverter

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Table of contents