INVT iMars MG Series, MG750TL, MG1K5TL, MG1K1TL, MG3KTL Operation Manual

...

iMars MG Series

Grid-tied Solar Inver ter

Preface

Thank you for purchasing iMars MG series grid-tied solar inverters. iMars MG series grid-tied solar inverters is mainly used in sol ar 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. The manual is intended to provide detailed information of installation, application, trouble shooting, precautions and maintenance of iMars MG series grid-tied solar inverters. Please read this manual carefully and follow all safety prec autions seriously before any moving, installation, operation and maintenance to ensure correct use and high performance of operation on the inverter. Configured monitoring and design software for iMars MG series grid-tied sol ar inverters are also provided. Go to www.invt-solar.com and download the software installation package and use instructions. The inverter complies with local regulations and laws on grid feeding. 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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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 ............................................................................................ 8

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

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

2.2 Products appearance .......................................................................................................... 11

2.2.1 Single-phase inverters ................................................................................................ 11

2.3 Name plates ........................................................................................................................ 11

2.3.1 Name plate on the package ........................................................................................ 12

2.3.2 Name plate on the inverter.......................................................................................... 12

2.3.3 Models ........................................................................................................................ 13

2.4 Technical parameters ......................................................................................................... 14

2.5 Dimensions and weight ....................................................................................................... 16

3 Installation ................................................................................................................................. 18

3.1 Unpacking inspection .......................................................................................................... 19

3.2 Before installation ............................................................................................................... 20

3.2.1 Installation tools .......................................................................................................... 20

3.2.2 Installation place ......................................................................................................... 20

3.2.3 Connection cables ...................................................................................................... 21

3.2.4 Miniature circuit breakers ............................................................................................ 22

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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 ................................................................................................................................... 28

4.1 Inspection before operation ................................................................................................ 29

4.2 Grid-tied operation .............................................................................................................. 29

4.3 Stopping .............................................................................................................................. 30

4.4 Daily maintenance .............................................................................................................. 30

4.4.1 Regular maintenance .................................................................................................. 30

4.4.2 Maintenance guide...................................................................................................... 31

5 Display panel ............................................................................................................................. 32

5.1 LED indicators..................................................................................................................... 33

5.2 Operation panel .................................................................................................................. 34

5.3 LCD screen ......................................................................................................................... 35

5.4 Functions operation ............................................................................................................ 36

5.4.1 Monitoring parameters ................................................................................................ 36

5.4.2 History ......................................................................................................................... 36

5.4.3 Statistics ...................................................................................................................... 37

5.4.4 Parameter settings ...................................................................................................... 37

5.4.5 System Information ..................................................................................................... 45

5.4.6 Faults .......................................................................................................................... 45

5.4.7 Inverter control ............................................................................................................ 45

5.4.8 Mode settings.............................................................................................................. 46

5.5 Grid Certification Choice ..................................................................................................... 47

6 Monitoring communication ...................................................................................................... 50

6.1 Standard communication .................................................................................................... 51

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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

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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.

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INVT iMars MG series grid-tied solar inverters Safety precautions

requirements

ed, contact the shipping

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 Name Instruction Abbreviation

Danger

Warning

Do not

Hot sides

Note Note

Danger

Warning

Do not

Hot

sides

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

Damage may occur if not follow the relative requirements

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

Physical hurt may occur if not follow the relative requirements

1.2 Safety guidelines

 The first thing after receiving is to check for any visible damage to the package

or to the inverter. If there is something suspect company and local dealer before installing.

 Only qualified electricians are allowed to operate on the inverter.  Do not carr y out any wiring and inspection or changing components when the

power supply is applied. Hazardous voltages may still be present in the inverter even if the AC and DC main switches are switched off. Wait at least 5 minutes after switching off the inverter. This ensures that the capacitors are electrically discharged.

 This product can cause a d c current in the external protective earth conductor.

Where a residual current-operated protective (RCD) or monitoring (RCM) device is strongly recommend to used for protection in a case of direct or indirect contact, only an RCD or RCM of Type B is allowed on the supply side of this product;

Note

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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 natio nal or local

laws and standards.

 The temperature of individual parts or the enc losure of the inverter–especially

the heat sink may become hot in normal operation. There is a danger of burning. Do not touch.

 Must be grounded before operation.

 Do not open the cover of inverters unauthorizedly. The electrical parts and

components inside the inverter are electrostatic. Take measurements to avoid electrostatic discharge during relevant operation.

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 o r more people, be cause of the

inverter is heavy.

 Remove and install the inverter with appropriate tools to ensure safe and normal

operation and avoid physical injur y 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.  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. Exposed to sunlight, solar

modules will output dangerous voltage.

 The inverter input voltage does 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

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INVT iMars MG series grid-tied solar inverters Safety precautions

under the

o not use parts and components not provided by our company during

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.

modules.

1.2.2 Grid-tied operation

 Only qualified electricians are allowed to operate the inverter

permission of local power departments.

 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 maintenanc e, inspection,

and components replacement of the inverter.

 Contact with the local dealer or supplier for maintenance.  Firstly disconnect all power supplies of the grid to the inverter before any

maintenance, and then disconnect the breakers and wait fo r at least 5 minutes until the inverter is discharged before maintenance.

 Please follow electrostatic protection norms and take correct protective

measures because of the electrostatic sensitive circuits and devices in the inverter.

 D

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 gri d 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

 Deal with the inverter as industrial effluent.

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INVT iMars MG series grid-tied solar inverters Product overview

2 Product overview

This chapter mainly describes the appearance, packaging accessories, name plate, technic al parameters and other information of iMars MG series grid-tied solar inverters.

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INVT iMars MG series grid-tied solar inverters Product overview

2.1 Solar grid-tied power generation system

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 MG series grid-tied solar inverters Grid-tied solar inverter is the core of photovoltaic power generation system. The sol ar 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 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. Do not connect an y AC loads between the inverter and breakers which is shown as the figure below:

Figure 2.2 Connection of inverters and AC breakers

 The recommended solar modules need to comply with IEC61730 Class A rating.  iMars MG series grid-tied solar inverters are only for crystalline silicon solar

modules.

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INVT iMars MG series grid-tied solar inverters Product overview

3 4

5 6

No.

Name

Instruction

Cover 2

Operational panel

LED indicators

AC terminal

For the connection of AC output

Communication port

RS485 and EXT communication port

Cooling chamber

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

3 DC switch On –off of the DC input 4 DC input port For the connection of solar modules

8 Radiator

9 Name plate

2.3 Name plates

After receiving, please check the information of name plates are the ordered one. If not, please contact with the supplier as soon as possible.

For rated parameters and safety precautions of the inverter

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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.

Figure 2.4

Name plate on the package

2.3.2 Name plate on the inverter

The information on the name plate of the inverter includes the brand information, product name, product model, DC input parameters, AC output parameters, operation temp erature, protective degree, grid certificate standard, certification logo, environmental logo, and serial No. of the product and so on.

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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 iMars MG750TL 750 Single-phase grid-tied solar inverter iMars MG1KTL 1000 Single-phase grid-tied solar inverter iMars MG1K5TL 1500 Single-phase grid-tied solar inverter IMars MG2KTL 2000 Single-phase grid-tied solar inverter iMars MG3KTL 3000 Single-phase grid-tied solar inverter iMars MG4KTL 4000 Single-phase grid-tied solar inverter iMars MG4K6TL 4600 Single-phase grid-tied solar inverter iMars MG5KTL 5000 Single-phase grid-tied solar inverter iMars MG3KTL-2M 3000 Single-phase grid-tied solar inverter iMars MG4KTL-2M 4000 Single-phase grid-tied solar inverter iMars MG4K6TL-2M 4600 Single-phase grid-tied solar inverter iMars MG5KTL-2M 5000

Note: Refer to the product specifications in section 2.3 for detailed information.

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INVT iMars MG series grid-tied solar inverters Product overview

Single-phase

MG750TL

MG1K1TL

MG1K5TL

MG2KTL

MG3KTL

MG4KTL

MG4K6TL

MG5KTL

MG3KTL

MG4KTL-2M

MG4K6TL-2M

MG5KTL-2M

Starting voltage

(V)

MPPT

voltage(V)

Operation

voltage (V)

MPPT/strings

per MPPT

Max. DC power

(W)

Max. input

current (A)

Max. inverter

array

DC switch

Optional

Null

Max.

(W)

Nominal

frequency

Voltage(V)

range

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

Max. AC

current (A)

Current (inrush)

5 A

ms)

6.5 A

ms)

9.5 A

ms)

18A

(3 ms)

Maximum

current

Maximum

protection

Power factor

≥0,99 (rated load)

Harmonic

distortion

Cooling

Natural cooling Natural cooling

Maximum

efficiency

97.40%

97.50%

97.60%

97.30%

97.40%

European

efficiency

96.50%

96.40%

96.50%

MPPT

efficiency

Protection

degree

Power

consumption

Isolation mode

Transformerless

Operation

(-25 ℃~ +60℃) ，derate after 45 ℃

2.4 Technical parameters

Table 2-3 Technical parameters of single-phase inverter

Model

Vmax PV 400 450 450 450 500 600 600 600 600 600 600 600

Recommended

DC side

Max. DC

voltage (V)

backfeed current to the

400 450 450 450 500 550 550 550 550 550 550 550

60 80 80 120 120 120 120 120 120 120 120 120

50-400 60-400 80-410 100-410 120-450 120-550 120-550 120-550 120-550 120-550 120-550 120-550

180-450 180-450 200-450 200-500 200-500 200-500 200-500 250-500 270-500 180-500 190-500 200-500

1/1 1/1 1/1 1/1 1/2 2/2 1/2 1/2 1/2 2/1 2/1 2/1

900 1200 1700 2200 3300 4000 4600 5000 3000 4000 4600 5000

8x1 9x1 10x1 12×2 15×2 18×2 18×1 18×1 18×1 14×2 15×2 16×2

46 Apeak impulse (0,38 ms duration)

Continuous output power

voltage /

frequency(Hz)

AC side

output fault

output overcurrent

System

range /

750 1100 1500 2000 3000 4000 4600 5000 3000 4000 4600 5000

Single phase, 230 Vac, 50 Hz

VDE0126& AR-N4105、AS4777.2/AS4777.3、CQC、G83-2、G59-3、C10/11、TF3.2.1、PEA

99.9%

IP65

< 1W

20 14 16① 18.3 20

3.6 4.5 6.5 9 13 16 18.3

peak

40 Apeak impulse (19,5 ms duration)

4 A 4.8 A 7.1 A 10 A 14 A

96.90% 97.20% 97.30% 97.40% 97.60% 97.60%

96.00% 96.10% 96.30% 96.50% 96.50% 96.50%

peak

13 A

(3 ms)

peak

< 3% (rated power）

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INVT iMars MG series grid-tied solar inverters Product overview

Single-phase

MG750TL

MG1K1TL

MG1K5TL

MG2KTL

MG3KTL

MG4KTL

MG4K6TL

MG5KTL

MG3KTL

MG4KTL-2M

MG4K6TL-2M

MG5KTL-2M

temperature

Relative humidity

Max.

altitude(m)

Overvoltage

category:

Displaying

LED/ LCD, backlit display

Systerm

language

Communication

RS485 (standard); handheld keypad; WiFi (optional)

DC terminal

SUNCLIX water-proof terminal

≤25

Installation

mode

Protection

Input overvoltage protection, input overcurrent protection, DC isolation monitoring, DC monitoring, grounding fault current monitoring, grid monitoring, island protection, short circuit protection, overheating prot ect i on

Remarks

①

G83: the maximum output current is 16A; others: the maximum output current is 18A.

Model

4% ~ 100%., no Condensation

<2000 (derate if the altitude＞2000)

II(DC side), III(AC side)

English, Chinese, German, Dutch

Noise dB(A)

≤25 ≤55

Wall installation

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INVT iMars MG series grid-tied solar inverters Product overview

(mm)

(kg)

MG4KTL /MG5KTL

365

360

160

2.5 Dimensions and weight

Figure 2.6 Inverter dimensions

Table 2-4 Inverter di mens ion and net weight

Model

MG750TL/MG1KTL / MG1K5TL /

MG2KTL /MG3KTL

MG3KTL-2M/ MG4K6TL/

MG4KTL-2M/MG4K6TL-2M/

MG5KTL-2M

280 300 138 9.5

420 360 160 17

Net weight

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INVT iMars MG series grid-tied solar inverters Product overview

MG2KTL/MG3KTL

MG5KTL-2M

Figure 2.7 Paper packages dimension

Table 2-5 Packages dimension and gross weight

Model

MG750TL/MG1KTL/MG1K5TL /

(mm) W (mm) D (mm)

411 418 249 12 Paper

Gross

weight (kg)

Packaging

Material

MG4KTL/MG4K6TL 518 480 284 16.5 Paper

MG3KTL-2M/ MG4K6TL/

MG4KTL-2M/MG4K6TL-2M/

573 480 284 18.5 Paper

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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. Only qualified electricians are allowed to install the inverter.

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INVT iMars MG series grid-tied solar inverters Installation

MG4K6TL-2M/MG5KTL-2M inverter

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. 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 are the same as that of the name plate;

(5) The delivery list of single-phase inverter is different from that of three-phase inverter. Below are the detailed lists: Packing list of single-phase inverter:

Figure 3.1 Packing list of single-phase inverter

Table 3-1 Detailed delivery list of single-phase inverter

No. Name Quantity

MG750TL/MG1KTL/MG1K5TL /

MG2KTL/MG3KTL/

2 Installation bracket 1

MG4KTL/MG4K6TL/MG5KTL/

MG3KTL-2M/MG4KTL-2M/

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INVT iMars MG series grid-tied solar inverters Installation

MG4K6TL-2M/MG5KTL-2M:2 pairs

No.

Installation tools

Instruction

Marking pen

Mark the installation hole

Electrodrill

Drill in the bracket or wall

Hammer

Hammer on the expansion bolts

Monkey wrench

Fix the installation bracket

Allen driver

Fasten the screws, remove and install AC wiring box

Straight screwdriver

For AC wiring

Megger

Measuring insulation performance and impedance

Multimeter

Check the circuit and AC and DC voltage

Electric iron

Weld communications cable

No. Name Quantity

3 4 Hexagon assembling bolt M4*16 2 5 Communication connector 1

6 Expansion bolts M6*60

7 DC connector

operation manual

MG750TL/MG1KTL/MG1K5TL/ MG2KTL/MG3KTL:3 MG4KTL/MG4K6TL/MG5KTL/ MG3KTL-2M/MG4KTL-2M/

MG4K6TL-2M/MG5KTL-2M:4 MG750TL/MG1KTL/MG1K5TL /

MG2KTL:1 pair MG3KTL/MG4KTL/MG4K6TL/MG5KTL /MG3KTL-2M/MG4KTL-2M/

3.2 Before installation

3.2.1 Installation tools

Table 3-2 Tools list

3.2.2 Installation place

Select installation place based on the following considerations:

(1) Height from ground level should be enough to ensure that display and status LEDs are

easy to read. (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. Refer to Figure 3.2. (4) The environment temperature is between -25 ℃~ 60℃.

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INVT iMars MG series grid-tied solar inverters Installation

Minimum clearance

Top

450mm

Bottom

450mm

(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. (7) The installation surface should be perpendicular to the horizontal line. Refer to Figure 3.3.

Figure 3.2 Installation space Ensure there is sufficient space for heat-releasing. In generally, below space requirement should be met: Table 3-3 Detailed installation space

Lateral 200mm

Figure 3.3 Installation position

 Do not remove any part and component of the inverter uninte nded; otherwise

damage to the device and physical injury may occur.

3.2.3 Connection cables

The user can select connection cable according the table below:

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INVT iMars MG series grid-tied solar inverters Installation

DC side

AC side

mm²

/MG3KTL

-2M/MG5KTL-2M

for outdoor use.

DC input

AC output

length >100m)

Table 3-4 Cable spec ifi cations

Mini cross-section

L N/PE

Model

MG750TL/MG1K1TL /

MG1K5TL / MG2KTL

MG4KTL/MG4K6TL/

MG5KTL/MG3KTL-2M

/MG4KTL-2M/MG4K6TL

Cross-section

(length ≤50m)

mm²

4 4 4

4 4 6

Cross-section

(length >50m) mm²

3.2.4 Miniature circuit breaker s

It is recommended strongly to install circuit breakers or fuses at the DC input and AC output to ensure safe installation and running.

 In order to protect the PCE, user and installer, external DC and AC circuit

breaker shall be equipped at the end-use application;

 The wiring shall be according local electric code. Choose proper cable for power

input and output lines. Input and output cable shall be PV private cables suitable

Table 3-5 Breakers specifications

MG750TL/MG1KTL/

MG3KTL/ MG3KTL-2M DC500V, C16A, 2P AC240V, C20A, 2P

MG4KTL/ MG4KTL-2M DC600V, C16A, 2P AC240V, C25A, 2P

Model

MG1K5TL

MG2KTL DC500V, C16A, 2P AC240V, C16A, 2P

Recommended DC

breakers (optional for

DC500V, C10A, 2P AC240V, C10A, 2P

Recommended AC

breakers

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INVT iMars MG series grid-tied solar inverters Installation

DC input

AC output

length >100m)

3-Ø8

4-Ø8

Model

MG5KTL/ MG4K6TL

/MG4K6TL-2M/MG5KTL-2M

Recommended DC

breakers (optional for

DC600V, C16A, 2P AC240V, C32A, 2P

Recommended AC

breakers

3.3 Mechanical installation

Since the installation place can be made by different construction materials, the inverter can be installed by different mounting methods. Take the typical installation environment as the example, the manual describes how to install the inverter on concrete wall. And because of different structure, the single-phase and three-phase inverter has different instillation modes. The inverter should be mounted in a vertical position of 90°to the horizontal line as shown in figure

3.3.

3.3.1 Installation of single-phase inverter

Figure 3.4 Installation bracket of 0.75~3kW inverter

Figure 3.5 Installation bracket of 4~5kW inverter

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INVT iMars MG series grid-tied solar inverters Installation

Installation hole

A(mm)

No.

Structure instruction

Installation holeΦ8

Hexagon assembling bolt hole M4

Table 3-6 Size of installation bracket

Model

MG750TL/MG1K1TL / MG1K5TL

/MG2KTL /MG3KTL

MG4KTL/MG4K6TL/MG5KTL/MG3KTL-2M/

MG4KTL-2M/MG4K6TL

Table 3-7 Instruction of installation bracket

Installation steps of single-phase inverter: (1) At first, take down the installation bracket from the machine by only removing M5 hex socket cap screws;

(2) Then use expansion bolts to fix the installation bracket at the proper location of the walls;

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

(4) Finally, fasten M5 hex socket cap screws connecting the inverter with the bracket. For firm installation, the operators cannot release the device until the inverter is installed on the bracket firmly.

195

260

Figure 3.6 Installation of single-phase inverter

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INVT iMars MG series grid-tied solar inverters Installation

SPD

Public Grid

iMars Grid-tied Solar Inverter

Communication Converter

SPD

Feeding Meter

Solar PV Modules

Monitoring Equipment

O F F

All cables must be firmly attached, undamaged, properly insulated and

3.4 Electrical installation

This section proposes to describe detailed electrical installation and related safety instructions.

Figure 3.7 Block diagram of the grid-tied solar system

 Improper operation during the wiring process can cause fatal injury to operator

or unrecoverable damage to the inverter. Only qualified personnel can perfo rm the wiring work.

 All electrical installations must be in accordance with local and national electrical

codes.



adequately dimensioned.

 Read and follow the instructions provided in this section while observing all

Note

safety warnings.

 Always note the rated voltage and current defined in this manual. Never e xceed

the limits.

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INVT iMars MG series grid-tied solar inverters Installation

4 4

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;

 Only qualified cables under the local electrical safety laws and regulations are

allowed to connect.

(2) Connect the out put cables of solar modules to the DC connector as figure 3.8 shows.

Loose the nut of connector and remove the isolation layer of the DC cable for about 15mm. Insert it into the connector and press until heart the lock sound. Finally fasten the nut. 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 solar modules connected with the inverter needs to be the configured ones

other than some connecting devices without authorized. Otherwise, device damage, unstable operation or fire may occur.

(3) Connect the DC connector with the inverter and ensure tightly-fastened; (4) Insert the screw-driver into the hole of the connector to remove the connector form the

(5) Unclench the pressed cover with screw-driver to remove the cables from the connector.

inverter.

- 26 -

INVT iMars MG series grid-tied solar inverters Installation

OPEN

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; (2) As shown in Figure 3.9, connect and fasten L, N and PE conductors of the single-phase

common grid to AC terminal, and then connect the terminal to the AC port of the inverter; (3) Fix and connect the DC output cables of PV board with the matched DC connectors, and then

connect the connectors to the DC port of the inverter.

 Only qualified cables under the local el ectrical safety laws and regulations are

allowed to connect.

- 27 -

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 -

INVT iMars MG series grid-tied solar inverters Operation

battery.

Run

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; (2) Ensure the mechanical installation meet the requirement mentioned in section 3.4; (3) Ensure the electrical installation meet the requirement mentioned in section 3.5; (4) Ensure all switches are “off”; (5) Ensure the voltage meet the requirement mentioned in section 2.4;

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

 Do check as above before any operation if the system or inverter needs to be

installed, refitted and maintained.

4.2 Grid-tied operation

 When power on the inverter for the first tim e, please refer to section 5.5 to

Note

Please start the inverter as follows:

(1) Ensure the requirements mentioned in section 4.1 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 indicators and information displayed on the screen. Refer to chapter 5

self-inspection----successful commissioning. “Warn” or “Fault” indicators are on or blinking: the inverter is power on, but fault occurs. Please refer to section 5.3 for detailed information, and then stop as the section 4.3 mentioned, finally settle the problems as chapter 7. If all faults are solved, do as chapter 4 mentioned.

complete grid certification choice.

 Keep the inverter power on at least 30 minutes to c harge for the internal clock

for detailed information.

Green indicator blinks, others off: the inverter is power on and in self-inspection;

Green indicator on, others off: the inverter is in power generation after

- 29 -

INVT iMars MG series grid-tied solar inverters Operation

contents

cycle

time monitoring software to read

running data, regularly back up all

make sure the parameters are set correctly.

solid, no damage or deformation. When

When inverter

the case cooling is normal.

See Section 4.4.2.

Check the cable connection and inverter

make sure they are connected

reliable.

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; (4) Wait at least 5 minutes until the internal parts and components are discharged. And then

stop the inverter.

4.4 Daily maintenance

The inverter can perform power generation, start and stop automatically even the da y and night shifts and seasons change in one year. In order to prolong the service life, daily maintenance and inspection are needed besides following the instructions mentioned in this manual seriously.

4.4.1 Regular maintenance

Maintenance

Store the operation data

Maintenance methods

Use realinverter inverter running data and stats. Check the monitoring software and inverter LCD screen to

Maintenance

Once each quarter

Check to make sure the inverter installation is

Check inverter operation status

Clean the surface

Check electrical connection

inverter running, check to make sure the sound and variables are normal. running, use thermal imager to check whether

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

terminals, reliably, not loose, and no damage, insulation

Every six months

- 30 -

INVT iMars MG series grid-tied solar inverters Operation

contents

cycle

on feature of inverter: use

the inverter, do "off" and "on" operation, to

time, make sure monitoring software can

necessary replaced.

Maintenance

Check the security features

Maintenance methods

Check the offmonitoring software or LCD and keyboard on

confirm its off-on feature intact. At the same

normally communicate with the inverter. Check the warning label on or around the inverter, if

Maintenance

Every six months

4.4.2 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 4.1 operating content. (5) Restart the inverter.

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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 -

INVT iMars MG series grid-tied solar inverters Display panel

Run Warn Fault

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; LED indicators are on, off and blinking. Please refer to table 5-1 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 5-1 Inverter state and LED indicators

Inverter state LED indicators Description

Stand-by

Self-inspection

Power

generation

Recoverable

fault

No power on. All indicators off.

Green indicator blinks in every 0.25s, others off. Power on and ready for self-inspection

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

- 33 -

INVT iMars MG series grid-tied solar inverters Display panel

Run Warn Fault

Inverter state LED indicators 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.

Unrecoverable fault

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

Note

Please refer to chapter 5 and 7 for detailed fault information and troubleshooting.

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

5.2 Operation panel

There are 4 buttons on the panel:

(1) “ESC”, exit and return ; (2) “

”, back to the front page and data increasing; ”，to the next page and data decreasing;

(3) “

(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.

- 34 -

INVT iMars MG series grid-tied solar inverters Display panel

LED indicator

LCD screen

Operation panel

Text Parameter

Display A

rea

Fault Code MenuStatus Area

Curve Graphic

Display A

rea

5.3 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. But it can be activated by pressing any button. Press “ENT” to enter into the main interface if the back ground illumination is on. 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.

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

Figure 5.2 Main interface

(1) The curve displays the power changing at the current day; (2) The words on the screen display the current key parameters of the inverter. Three lines of

words are displayed at a time, but if the inverter is in operation or stand-by state, the words are rolling forward at every 3s. And the user can press “

- 35 -

” or “ ” to look up the

INVT iMars MG series grid-tied solar inverters Display panel

Main Menu

Monit Param

History Statistics

Setup System Info Fault Info

Current State

E-tod

: 0Wh $-tod: €0. 00 P-in : 0. 00kW

History 0

2012/01

/05 11:32: 16

A005: Grid under freq

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.

5.4 Functions operation

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

Figure 5.3 Main interface

5.4.1 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 5.4. Go the front or next page through “ return through “ESC”.

” and “ ” and

Figure 5.4 Monitoring parameters

5.4.2 History

Press “ ” and “ ” in the main interface to select “History”, and then press “ENT” to view the parameters which is shown in figure 5.5.

Figure 5.5 History parameters

There are 32 history records in total. Press “ “ESC” to exit. The numbers on the top right is the serial No. of the record and the numbers in the second line display date when faults occur and settled. If the color of the third line illuminates, the fault occurs, if not, the fault is solved.

” and “ ” to review the history record and press

- 36 -

INVT iMars MG series grid-tied solar inverters Display panel

Statistical Menu

Lifetime

Partial Today

Last 7 days Last Month Last 30days

Setup Menu

Address

Keypad PWD Cash/price

Date/Time Language Set Model

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.

Figure 5.6 Statistic information The information in table 5-2 can be viewed in the statistical menu. Table 5-2 Statistic information

Content Detailed

Lifetime

Total operation time, total power produced, total power saved, total CO reduction in lifetime

Time statistics

Day statistics

Latest 7 days

Latest 1 month

Latest 30 days

Latest 1 year

Total power produced, total power saved, peak power and total CO reduction in statistical time

Total power produced, total power saved, peak power and total CO reduction in current day

Total power produced, total power saved and total CO

reduction in

latest 7 days Total power produced, total power saved and total CO

reduction in

latest 1 month Total power produced, total power saved and total CO

reduction in

latest 30 days Total power produced, total power saved and total CO

reduction in

latest 1 year

5.4.4 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 5.7.

Figure 5.7 Setting information

- 37 -

INVT iMars MG series grid-tied solar inverters Display panel

Current State E- tod : 0 Wh $- tod : €0. 00 P-in : 0. 00 kW

History 0 2012 / 01 / 05 11 : 32 : 16

A 005 : Grid under freq

Statistical Menu

Lifetime

Partial Today

Last 7 days

Last Month

Last 30 days

Setup Menu

Address

Keypad PWD

Cash / price

Date / Time

Language Set Model

Fault 1 : A 005 Grid under freq 2 : A 001 Input under Volt 3:

Control Menu

On / Off

Clear Restart

Factory

Setup Menu

Address

Keypad PWD

Cash / price

Date / Time

Language

Country

RS 485 Address

001

User Password

0000

Setup Cash Type : EUR Val / kWh : 00 . 50 €/1 kWh

EUR

Setup Date / Time Date : 2014 / 10 / 27 Time : 12 :14 :30

Setup Model : Independ

Independ

Parallel

User Period Start : 2014 - 10 - 24 End : 2014 - 10 - 29

Main Menu

Monit Param

History

Statistics

Setup

System Info Fault Info

V-pv 1 : 000 .0V

I -pv 1 : 000 .0A

V-pv 2 : 000 .0V

01. A001Alarm

Curr. Language : English

English

Chinese German

Dutch

Country : Australia

Germany

England Australia

Greece Denmark Holland

System Information

Part No .

Serial No . Soft Ver

Cert . Area

Run Param

Parameters can be set in this interface.

LCD menus:

- 38 -

INVT iMars MG series grid-tied solar inverters Display panel

Control Menu

On / Off

Clear

Restart

Factory

On / Off Ctrl

OFF

Clear all Record : Sure ？

Press ENT to execute .

Press ESC to cancel .

Restart

Press ENT to execute .

Press ESC to cancel .

Restore to Factory

Press ENT to execute .

Press ESC to cancel .

System Information

Part No .

Serial No . Soft Ver

Cert . Area

Part No .

iMars BG 5 KTL

Serial No .

BGTL 100 - 00

System Ver Version 1 : V 1 . 05 Version 2 : V 1 . 05

MCU Version

: V 1 . 05

Certificate Area

AS 4777

Run Param

UV Volt .

UV time . OV Volt

OV time UF Freq

UF time

ACUV Time

200ms

485 Address

001

User Password

0000

Table 5-3 Parameters setting

Setting item LCD display Instruction

RS485

Address

Enter into the interface and edit the data through “

“ENT” again to the next bit. After editing the three bits, press “ENT” to s ave the edition and press “ESC” to exit. Enter into the interface and edit the data

User

password

- 39 -

through “ “ENT” again to the next bit. After editing the four bits, press “ENT” to save the

” or “ ”. And then press

INVT iMars MG series grid-tied solar inverters Display panel

Setup Cash Type: EUR Val/

kWh: 00.50€/ 1 kWh

EUR

Setup Date

/Time

Date: 2012

/01/

Time:

12:14

:30

Curr. Language : English

English

Chinese German

Dutch

Country : Australia

Germany

England

Australia

Greece Denmark Holland

Setup Model: Independ

Independ

Parallel

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 setting interface with password. Enter into the interface and edit the currency type and cash through “

”. And then press “ENT” again to the

“

Setup Cash

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

Setup

Date/Time

and time through “ press “ENT” again to the next line. After editing the four bits, press “ENT” to save

” or “ ”. And then

the edition and press “ESC” to exit.， Enter into the interface and edit the

Language

language through “ press “ENT” again to save the edition and press “ESC” to exit.

” or “ ”. And then

The default language is English. Enter into the interface and select

Select

Country

country through “

” or “ ”. And then press “ENT” again to save the edition and press “ESC” to exit.

The DC input mode includes

Setup mode

- 40 -

“independent” and “parallel”: “independent mode” is the independent

” or

INVT iMars MG series grid-tied solar inverters Display panel

User Period

Start

: 2012-01- 01

End : 2012

-02-01

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. 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 5.4.8 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.

User period

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.

- 41 -

INVT iMars MG series grid-tied solar inverters Display panel

set power

P-Lmt

Mode

LmtPower

P.Factor

Limit Mode： Invalid

Invalid

Auto

Manual

Limit Power

100%

Power Factor

Grid Tied Mode

Normal Mode

Power Factor： 1.00

Input password

0000

Personal

MPP Start Volt

MPPT Volt

120V

Input password

0000

Setting item LCD display Instruction

The password is needed when enter into the interface of “Set power”. Get the password from the supplier if necessary (supplier password: 2678). There are 3 submenus: ①P-Lmt Mode: invalid (limited power function is invalid),auto (special for single phase) ,manual (set the limit of output value manually); ②

Set power

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%;

③p.Factor: includes normal model

(default value “1”), current advanced mode and current hysteresis mode and the setting rage is -0.9-0.99. (the machine of three phase only has the function of ③) This function is only valid for single phase inverters. The password is needed when enter into the personal

Personal

interface. Get the password from the supplier if necessary (supplier password:

2678). It can set MPPT starting voltage from 120V to 160V under the submenu of ”MPPT start volt”.

- 42 -

INVT iMars MG series grid-tied solar inverters Display panel

Run Param

UV Volt

UV time OV Volt

OV time

UF Freq

UF time

ACUV Volt(phase volt)

184V

ACUV Time

0.20s

ACOV Volt(phase volt)

263V

ACOV Time

0.20s

ACUF Freqency

47.6Hz

ACUF Time

0.20s

ACOF Freqency

51.4Hz

ACOF Time

0.20s

Input password

0000

Setting item LCD display Instruction

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

Run Param

(supplier password: 2678). Set ACUV Volt, ACUV time and others under the related submenus, and then press “ and “

” to modify, and finally press

“ENT” to confirm.

”

- 43 -

INVT iMars MG series grid-tied solar inverters Display panel

Run Param

UV volt 1

UV time

OV volt 1

OV time

1 UF Freq 1 UF time 1

ACUV Volt(phase volt)

115V

ACUV Time

00.04

309V

00.02s

ACUF Frequency

47.99Hz

00.12s

50.50hz

00.12s

Input Password

0000

196V

252V

0.19s

01.90s

49.49Hz

595s

50.2Hz

115s

Run Restart Time

060s

Island protect:on

OFF

ACOV Volt(phase volt)

ACOV Time

ACUF Time

ACOF Frequency

ACOF Time

ACUV Volt

(phase volt)

ACUV Time

ACOV Volt(phase volt)

ACOV Time

ACUF Frequency

ACUF Time

ACOF Frequency

ACOF Time

There are 2 protections under

Setting item LCD display Instruction

Run Param*

- 44 -

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

INVT iMars MG series grid-tied solar inverters Display panel

System Information

Part No .

Serial No .

Soft Ver

Cert . Area

Run Param

System Ver Version1 : V1 . 05 Version

2 :

.05

MCU Version

Fault 1: A 005 Grid under freq 2: A

001 Input under Volt

Control Menu

On/

Off

Clear Restart

Factory

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.

Figure 5.8 System information

The system information include “product model”, “serial No.”, “software version” and “certificate version”.

Figure 5.9 System version

5.4.6 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 5.10.

Figure 5.10 Fault information There are 8 pieces of fault information in the record which is shown in figure 5.10; otherwise it will display “No Fault!” Refer to section 5.4.2 for more detailed information.

5.4.7 Inverter control

Press “ ” and “ ” in the control interface, and then press “ENT” to view the sub-menu which is shown in figure 5.11.

Figure 5.11 Control interface

- 45 -

INVT iMars MG series grid-tied solar inverters Display panel

On/Off Ctrl

OFF

Restart Press ENT to execute. Press ESC to cancel.

Clear all Record: Sure

？

Press ENT to execute. Press ESC to cancel.

is to clear all setting

Restore to Factory Press ENT to execute. Press ESC to cancel.

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.

On/Off control

Press “ interface to select the operation. Press “ENT” to ensure the operation and press

” and “ ” in the control

“ESC” to return. Restart the inverter through the panel. And save the all settings and operation

Restart

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

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

Restore to

factory

parameters and history operation records through the panel, restore to the factory setting. Press “ENT” to ensure clear or press “ESC” to return.

5.4.8 Mode settings

The default mode of series grid-tied solar inverter is “independent”. But if the current of solar modules are joined into the inverter as figure 5.12 shows, it is necessary to switch the mode into “parallel”.

- 46 -

INVT iMars MG series grid-tied solar inverters Display panel

screen and keypad.

SOLAR INVERTER

Initialing……Waiting

>>>>>>>

Country:

Unset

Germany

UK Australia

Greece Denmark Holland

Country: Unset

Other

Denmark Holland

China Thailand

Greece

Figure 5.12 “Parallel” input mode

 Only where there is more than 10 0V DC v oltage input, LCD dis play working, an d

Note

AC switch off, can query and modify the inverter DC input mode via the LCD

5.5 Grid Certification Choice

Power on the inverter by DC input for the first time or after Restore factory settings, it will appear on the LCD screen prompts as follows:

Waiting a few seconds later, in the LCD screen will appear a list of countries as follows, requiring the user to choose what country of use.

As shown below:

Press the “

” or “ ” button to navigate the country, press the ENT button to complete the setting. After determine the location, please follow the user manual required with the proper use of inverter. The user can change the location through the following ways: LCD Screen：MENU→Main Menu: Setup→Setup Menu: Country→Country:

- 47 -

INVT iMars MG series grid-tied solar inverters Display panel

V-pv1: 000.0V

I -pv1: 000.0A

V-pv2: 000

.0V

01.A001

Alarm

Main Menu

Monit Param

History Statistics

Setup

System Info Fault Info

Setup Menu Address Keypad PWD Cash/price

Date/Time Language

Country

Country: China

Germany

Australia

Greece Denmark Holland

V-pv1: 000.0V

I -pv1: 000.0A

V-pv2: 000.0V

01.A001

Alarm

Main Menu

Monit Param

History Statistics

Setup

System Info

Fault Info

System Information Part No. Serial No. Soft Ver

Cert. Area

Run Param

Certificate Area

AS4777

Germany

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

Comparison Table: Available Countries and their grid certification

No. Country Certification Remark

VDE0126& AR-N4105 2 UK G83/G59 3 Australia AS4777 4 Greece VDE0126 5 Denmark TF321 6 Holland C10/C11 7 China CQC 8 Thailand PEA 9 Other VDE0126

- 48 -

INVT iMars MG series grid-tied solar inverters Display panel

Single-phase

voltage

Three-phase

voltage

Grid

frequency

New

Zealand

Reference Table: Grid Certification and Grid Voltage and Frequency of Some Countries

No. Country Certification

1 Germany 2 France 3 Greece 4 Turkey 5 Romania 6 Slovakia 7 Portugal 8 Poland

9 Hungary 10 Switzerland 11 Austria 12 UK G83-2/G59-3 240V 415V 50Hz 13 Australia 14 Singapore

15 16 Belgium

17 Luxembourg 18 Holland 19 Denmark TF3.2.1 220~230V 380~400V 50Hz 20 Thailand PEA 220V 380V 50Hz 21 China CGC/CF001 220V 380V 50Hz 22 Italy ENEL 230V 400V 50Hz

VDE0126&

AR-N4105

AS4777.2&AS4777.3

AS/NZS3100

C10/C11 220~230V 380~400V 50Hz

220~230V 380~400V 50Hz

230~240V 400~415V 50Hz

- 49 -

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 -

INVT iMars MG series grid-tied solar inverters Monitoring communication

a r n

R u n

E r r

o r

iMars E NET100

Inverter 001 Inverter 002

RS485

Inverter N

Ethernet

PhonExpert

WinExpert

Internet

WinExpert

Router

User wired network

WiFi

PhonExpert

WinExpert

Internet

WinExpert

Router

User wireless network

a r n

R u n

E r

r o r

WiFi

iMars WiFi100

Ethernet wired monitoring system solution

WiFi wireless monitoring system solution

iMars Grid- tied Solar Inverter

InfoExpert

RS485

Pin on inverter

Definition

+5VDC

A (RS485+)

B (RS485-)

GND

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.

6.1 Standard communication

Table 6-1 Pins on inverter instruction

Figure 6.1 Monitoring system of inverter

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INVT iMars MG series grid-tied solar inverters Monitoring communication

485

EXT

+5V

485+

485-

GND

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.

Figure 6.4 Detailed connection

(2) According to Table 6-1, 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

on www.invt-solar.com.

6.2 Optional communication

The optional communication modes include Ethernet, WiFi, which also need corresponding communication parts and components. All operation parameters of the inverter are output from port “RS485/EXT”, and then to the communication devices, finally after convertering, to the monitoring system of upper PC as standard Ethernet, WiFi signal. See figure 6.1. Table 6-2 Optional accessories

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INVT iMars MG series grid-tied solar inverters Monitoring communication

Automatic control of data flow, automatic identification and

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.

Note: the optional accessories are not standard-configured.

6.2.1 WiFi200 converter

6.2.1.1 WiFi200 Product Introduction

iMars WiFi200 communication converter has 1 RS485 and 1 WiFi communication port for the data transmission. This product is based on the embedded module with general serial port which meets the network standard, has built-in TCP/IP protocol stack for the transformation between the user serial port and WiFi port. The traditional serial device can transfer the data through Internet without any configuration modification. WiFi200 provides a complete and rapid solution of data transmission for serial devices.

Table 6-3 iMars WiFi200 has the following features:

Interface Parameters function

1. transmission direction of control data and no handshake signal is needed

RS485

interface

WiFi

interface

2. Transmission speed 300~115200Baud

3. Up to 32 devices of RS485

4. the maximum transmission distance 1200m

5. Flow indicator

6. Half duplex mode

1. Support data exchange between RS485 - WiFi interface

2. Meet the 802.11 b/g/n wireless standard

3. Wireless network AP/STA

4. Security mechanismWEP/WPA-PSK/WPA2-PSK/WAPI

5. Barrier-free transmission distance 100m

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INVT iMars MG series grid-tied solar inverters Monitoring communication

atically after the network disconnection,

Interface Parameters function

1. TCP Server, TCP Client, UDP mode and UDP Server mode

2. Operation interface, target IP address and interface can be set in random

3. Disconnect autom ensure the reliable TCP connection of the whole network

4. Support TCP/IP/UDP network protocol stack

5. IE configuration interface

Others

6. Operation mode, Transparent data transmission or agreement transfer mode

7. Input power supply: 5VDC~12V/170mA~300mA and the power is provided by the inverter directly

8. Working temperature: -20~70°C

9. Working humidity:10%-90%RH (no condensation)

10. Storage temperature: -40-80 ℃

11. Storage humidity: 5%-90%RH (no condensation)

12. Other frequency: 20MHz, 40MHz and automatic

WiFi200 is AP mode in the factory. It can be connected with the 485 communication interface of inverters and visited by computer or mobile software.

6.2.1.2 Monitoring solutions

WiFi200 communication converter has 3 monitoring solutions to establish the solar power generation system for different requirements: The first solution: direct connection. Short distance site control is available. The second solution: router LAN. Remote LAN monitoring is available. The third solution: router internet. Remote access internet control is available.

1. Direct connection

Figure 6.5 Direct connection solution

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INVT iMars MG series grid-tied solar inverters Monitoring communication

Direct connection solution is suitable for short distance monitoring. The wiring is as the figure above. Hardware and software devices such as iMars series solar inverters, WiFi200 communication converters, computers with the function of WiFi signal receiving), and WinExper t solar monitoring software are needed in the establishment of direct solar monitoring. WiFi200 operates in AP mode which is also the default mode of the module. The monitoring device can visit the inverter through wireless and wire modes. Refer to 6.2.1.3 for the configuration of WiFi200 communication converter and computers.

2. Router LAN

Figure 6.6 Router LAN solution Router LAN is suitable for remote LAN monitoring. The wiring is as the figure above. Hardware and software devices such as iMars series solar inverters, WiFi200 communication converters, routers, devices with the function of WiFi signal receiving (such as computers and mobile phones) are needed in the establishment of router internet monitoring. WinExpert solar monitoring software or mobile phone APP are needed for the operation and data viewing. Different configurations are needed in the wire or wireless connection between WiFi200 and routers, monitoring devices and routers. Refer to 6.2.1.3 for detailed operation.

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 ab ove. Hardware and software

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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. Different configurations are needed in the wire or wireless connection between WiFi200 and routers, monitoring devices and routers. Refer to 6.2.1.3 for detailed operation.

6.2.1.3 Installation and commissioning

1. Computer network configuration

Take the computer configuration as the example. The user needs to ensure there is wireless network card in the computer and the card can access the IP address automatically. After power on, the factory default value is AP hotspot mode. Please connect the hotspot through the wireless network and then the computer can access the IP address automatically.

2. Parameters setting （1）Log in the Web

Open the web browser (need to use more than IE7.0 browser or Google Chrome browser), input http//192.168.16.254 in the address bar. Input the user name: admin; Password: admin in the pop-up login window and then click "Ok".

Enter into the main interface:

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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  WIFI (CLIENT)-SERIAL – serial port to WIFI CLIENT  WIFI (AP)-SERIAL) – serial port to WIFI AP

Different operation modes display different interface. The precious two modes can not be supported by WiFi200, so mode (3) and (4) is introduced in this manual. Serial port to WIFI CLIENT (STA mode):

Serial port to WIFI AP:

Serial port configuration:

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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” Serial Framing Lenth: framing length of the serial port Serial Framing Timeout: framing time of the serial port Network Mode: network mode, select Client, Server or none Remote Server Domain/IP: The remote server domain name or IP address. For example,

192.168.200.1 Locale/Remote Port Number: Local or remote port number. Different network mode designates different parameters. In the Client mode, it designates the remote port number and in Server mode, it designates the local port number. Network Protocol: Network Protocol type, use tcp or udp protocol Network Timeout: Network Timeout. In Server mode, there is no data during the timeout Configuration submitting:

Click “Apply” to submit the current interface. If the network parameters are modified, it needs 25 seconds to submit. If only modifying the function of serial port, the submitting will be finished soon. Click “Cancel”to download the interface and the modified configuration will be lost.

（2）Configuration of direct monitoring

Select AP hotspot mode as the operation mode. SSID is the hotspot name and can be modified by

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INVT iMars MG series grid-tied solar inverters Monitoring communication

the user. The authenticated encryption is OPEN, WEP, WPA and so on. The user c an set the security according to the needs.

Select TCP Server in the configuration of the serial port.

（3）Configuration of router LAN monitoring

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. The password and authentication encryption need to be set according to the attribute of the wireless router.

Select TCP Server in the configuration of the serial port.

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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.

Select TCP Server in the configuration of the serial port. Input the remote IP address according to the actual. For example,“192.168.200.1”.

3. Commissioning

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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. WinExpert software introduction: WinExpert software can support two kinds of communication mode of serial port and network. When WiFi100 monitors the inverter, it is necessary to select network monitoring. Note: because of 485 communication and the influence of the WiFi100 communication converter, at the same time only one computer or mobile phone can transmit data with the inverter through WiFi100 converter; otherwise there will be data conflict to make WinExpert or PhonExpert monitoring software display the wrong data, and even lead to monitor software has burst automatically and shut down. Install WinExpert software on the computer (Microsoft XP or Win7 operating system).

Click "Set" menu to select "Set communicate information" menu.

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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”.

（1）Communication verification of WiFi200 and terminal devices

Complete the "Communication setting" of WinExpert solar monitoring software according to the above description. As shown in figure, if the "green light" on the below of the home page is on and display “Online”, the communication between WiFi200 and monitori ng devic es i s s uccess ful and i t can go to the next step.

Otherwise, as shown in figure, if the "red light" on the below of the home page is on and display “Offline”, the communication between WiFi200 and monitoring devices is not successful, please check WiFi200 network connections, network configuration and monitoring equipment again.

（2）Communication verification of WiFi200 and inverters

Ensure the successful communication between WiFi200 and monitoring devices, and then check the communication. As shown in the figure, select “Search inverter” in the operation menu of WinExpert software.

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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. So on, when all the inverters in the solar system are displayed in the search list, the solar system has successfully established communication with WiFi200. Otherwise, please check the communication address and RS485 communication connec tion which are not listed and repeat the above operation.

And then, the real-time data of the inverter can be monitored by the software.

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INVT iMars MG series grid-tied solar inverters Troubleshooting

7 Troubleshooting

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

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INVT iMars MG series grid-tied solar inverters Troubleshooting

Table 7-1 Fault code

Fault code

A001 Input UV Input undervoltage

A002 Bus UV Bus undervoltage DC input A003 Grid UV AC undervoltage Low voltage of the public grid

A004 Grid OV AC overvoltage High voltage of the public grid

A005 Grid UF AC underfrequency Low frequency of the public grid A006 Gri d OF AC overfrequency High frequency of the public grid A007 Clock Fail Clock alarm Wrong setting

A009 Cmd Shut Manual stutdown

A011 Grid Loss

Message Instruction Fault analysis

PV1 undervoltage PV2 undervoltage

Stop by the operation panel or upper PC

The public grid

disconnects.

Check if inverter AC connection is well

E001 Input OV Input overvoltage DC input overvoltage E003 Bus OV Bus overvoltage Internal bus voltage E004 Boost Fail Voltage-boost fault Voltage-boost fault of the inverter E005 Grid OC AC overcurrent Internal AC overcurrent E006 OTP Overtemperature Internal overtemperature

E007 Riso Low

E008 IGBT drv

Low isolation

impedance

IGBT drive

protection

Low isolation impedance of the external port system

IGBT drive protection of the inverter

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INVT iMars MG series grid-tied solar inverters Troubleshooting

Fault code

E009 Int Comm

E010 ILeek Fail

E011 Relay Fault Relay fault Internal relay fault

E012 Fan Fail Fan fault Internal fan fault

E013 Eeprom Memory error Internal memory error E014 Dc inject High DC injection High DC injection during AC output E015 OutputShort Output short-circuit Output short-circuit E018 Input OC Input overcurrent DC input overcurrent

E019 Incnst

E020 PowerReversed DC power reversed DC power reversed

Message Instruction Fault analysis

Internal

communication fault

Huge leakage

current

Data consistency

fault

Master-slave DSP communication disabled Error of master-slave DSP check bit

Huge leakage current of the system or inverter

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

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 .

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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

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Warranty Card

Fault Messages:

iMars series inverter 2012

Consumer information (please print):

Name: Business name: Address: Phone Number: City: State: Zip Code: Email:

Installer information:

Installer name: Installation Company: Contractor’s license number: Address: City: State: Zip Code: Email: Website: Modules used: Modules per string: Number of strings: System commission date:

Fault inverter information:

Model No.: Serial No.: Date of Delivery: Error Code: Error tips: Version1: Version2: MCU Version:

Signature:

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

INVT Warranty Terms and Conditions

INVT inverter provides five years’ quality assurance *Please keep the whole warranty card and purchase invoice as the basis for quality assurance *

 Standard warranty：

iMars MG Series inverter (Model: MG750TL/MG1KTL/MG1K5TL /MG2KTL/MG3KTL/MG4KTL/MG4K6TL/MG5KTL/MG3KTL-2M/ MG4KTL-2M/MG4K6TL-2M/MG5KTL-2M) from Shenzhen INVT Electric Co., Ltd. (herein after “INVT”). Have 60 months standard warranty period starting on the date of Shipment by INVT.

 Warranty extension：

The warranty period can be extended to 10 years from the date of shipment or no more than 126 months from the date of delivery by INVT, subject to additional cost. INVT als o o ffers w arr anty extens i ons to 1 5 a nd 20 years (please check the separate order form) . The warranty extension can be ordered while orders be confirmed and before shipment, and no more than twelve months after delivery by INVT. Warranty extension is no longer possible after the above-mentioned dates. Upon purchase of the warranty extension and once the unit has been delivered, INVT grants the customer a warranty certificate for each inverter confirming the extended warranty period.

 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.

- Copy of the startup report and startup date.

- Copy of warranty card (already filled out).

- Documentation detailing previous claims/exchanges (if applicable). If a device becomes defective or fault during the specified INVT Factory warranty period, one of the following services, as selected by INVT.

1) Depot Repair（For iMars inverter）.

2) Exchange for a replacement device of equiv alent val ue accordi ng to mod el and ag e（Only for iMars inverter）. In this case, the reminder of the warranty entitlement will be transferred to the replacement device. In such an event, you do not receive a new warranty card, as your entitlement is documented at INVT. INVT or the authorized service agencies will inform replacement date within 2 working days. The defective device is to be packed in the original packaging materials for return transport to the closest office of INVT.

 Exclusion of warranty claims:

To provide better service to INVT’s End Users, all INVT authorized Dealers or Distributors are requested to respond to End Users’ warranty claim, and INVT will replace any products or parts of the product during the Warranty Period proved to be defective in design or manufacture, provided always that the INVT’s obligations stated below will not apply where (the Dealers or Distributors are liable for investigation of the fol l owing):

1) “Warranty Card” not being sent back to Distributor/Dealer or INVT;

2) Failure to observe the user manual, the installation guide, and the maintenance regulations;

3) Product modified or design changed or parts replaced not approved by INVT;

4) Transport damage, Painting scratch caused by shipping pumping, it should claim to insurance company as soon as containers unload with enough evidence;

5) Modifications, changes, or attempted re pair s and er ase series number or seals by non INVT’s technician;

6) Failure to observe the applicable safety regulations (VDE standards, etc.);

7) Incorrect installation or commissioning;

8) The Product has been improperly stored and damaged while being stored by the Dealer or the end user;

9) Insufficient ventilation of the device;

10) The maintenance procedures relating to such product have not been observed or performed to an acceptable standard;

11) Incorrect use or inappropriate operation;

12) Force majeure (e.g., lightning, overvoltage, storm, fire).

Only INVT has the rights to revise the quality assurance contents mentioned-above; any trader or distributor has no rights to make any modification for warranty card provided by INVT, or represent INVT to express any opinion and behavior; INVT reserves the final interpretation right. If there is any question, users can dial the after-sales hotline.

Shenzhen INVT Electric Co., Ltd.

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.,

In dust ria l Auto mat io n:

Ele ct ric Power:

6 6 0 0 1 - 0 0 0 9 8

20 150 3 (V 2.0)

INVT iMars MG Series, MG750TL, MG1K5TL, MG1K1TL, MG3KTL Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual