Sofar 250KTL-HV User manual

SOFAR 250/255KTL-HV User Manual

All copy reserved ©Shenzhen SOFARSOLAR Co., Ltd.

SOFAR 250/255KTL-HV User Manual

All copy reserved ©Shenzhen SOFARSOLAR Co., Ltd.

Contents

Preface .................................................................................................................. - 1 -

1. Basic Safety Information ................................................................................ - 3 -

1.1. Requirement for Installation and Maintenance ..........................- 3 -

1.2. Symbols and signs ......................................................................... - 7 -

2. Product Characteristics .................................................................................. - 9 -

2.1. Intended Use ................................................................................... - 9 -

2.2. Function Description .................................................................... - 12 -

2.3. Electrical block diagram .............................................................. - 15 -

3. Inverter Storage .............................................................................................- 17 -

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

4.1. Installation Process ...................................................................... - 18 -

4.2. Checking Before Installation .......................................................- 18 -

4.3. Tools ................................................................................................- 21 -

4.4. Determining the Installation Position .........................................- 23 -

4.5. Moving of inverter ......................................................................... - 26 -

4.6. Installation ......................................................................................- 28 -

5. Electrical Connection ....................................................................................- 33 -

5.1. Electrical Connection ................................................................... - 34 -

5.2. Terminal Connector ...................................................................... - 34 -

5.3. Grounding Connection (PE) ....................................................... - 35 -

5.4. Connect grid side of inverter(AC-Output) .................................- 37 -

5.5. Connect the power cord of the tracking system (optional) ....- 44 -

5.6. Connect PV side of inverter（DC-Input）................................- 46 -

5.7. Communication Connection ....................................................... - 50 -

6. Commissioning of inverter ........................................................................... - 54 -

6.1. Cable Connection Inspection ........................................................- 54 -

6.2. Start Inverter ..................................................................................- 55 -

7. SOFAR Monitor APP(Optional) ................................................................... - 56 -

SOFAR 250/255KTL-HV User Manual

All copy reserved ©Shenzhen SOFARSOLAR Co., Ltd.

7.1.Download ........................................................................................ - 56 -

7.2. Account Registration and Login ....................................................- 57 -

7.3. Local Control ...................................................................................- 59 -

7.4. About the Software .........................................................................- 64 -

8. Operation interface ....................................................................................... - 66 -

8.1. Operation and Display Panel ......................................................- 66 -

8.2. Standard Interface ........................................................................- 67 -

8.3. Main Interface ............................................................................... - 70 -

8.4. Updating Inverter Software ......................................................... - 73 -

9. Trouble shooting and maintenance ............................................................ - 75 -

9.1. Normal outage power down operation ......................................- 75 -

9.2. Fault power-down operation ....................................................... - 75 -

9.3. Confirmation of troubleshooting site information .................... - 76 -

9.4. Maintenance ..................................................................................- 87 -

9.5. Fan Maintenance and Replacement Instructions ....................... - 89 -

10. Technical Data ............................................................................................. - 94 -

10.1. Input parameters (DC) ...............................................................- 95 -

10.2. Output Parameter (AC) ............................................................. - 96 -

10.3. Performance Parameter ............................................................- 97 -

10.4. General Data ...............................................................................- 98 -

11. Quality Assurance ....................................................................................... - 99 -

SOFAR 250/255KTL-HV User Manual

- 1 -

Preface

Notice

The products, services or features you purchased shall be subject to the

company's commercial contracts and terms. All or part of the products and

services described in this document may not within the scope of your

purchase. Unless additional terms and conditions in your contract, the

company does not make any statement or guarantee on the contents of this

document.

Save this Instruction

This manual must be considered as an integral part of the equipment.

Customer can print the electronic version to hard copy and keeping

properly for future reference. Anyone who operates the device at any time

must operate in accordance with the requirements of this manual.

The copyright of this manual belongs to Shenzhen SOFARSOLAR Co., Ltd.

Any corporation or individual should not plagiarize, partially cope or fully

copy (including software, etc.), not allow to duplication and publishment in

right of final interpretation. This manual subject to modify according to

user's or customer's feedback. Please check our website at

www.sofarsolar.com for lasted version.

Document Updates

V1.3 2023-09-19

Shenzhen SOFARSOLAR Co., Ltd

Location: building 11, Gaoxinqi science and technology building, District

67,XingDong Community, XinAn Street, BaoAn District, Shenzhen, China.

Postcode: 518000

Company Website: www.sofarsolar.com

Email: service@sofarsolar.com

Outline

This manual is an integral part of SOFAR 250/255KTL-HV. It describes the

assembly, installation, commissioning ,maintenance and failure of the

SOFAR 250/255KTL-HV User Manual

- 2 -

product. Please read it carefully before operating.

Scope of Validity

This manual contains important instructions for:

SOFAR 250KTL-HV、SOAFR 255KTL-HV

Target Group

This manual is for qualified electricians. The tasks described in this manual

only can be performed by qualified electricians.

Symbols Used

In order to ensure the safety of the user's person and property when using

the PV grid-connected inverter, as well as the efficient use of this product,

relevant safety operation information is provided in the manual and

highlighted with the appropriate symbols. It is important that you fully

understand and absolutely comply with this emphasized information to

avoid personal injury and property damage. The symbols used in this

manual are listed below.

“Danger”indicates a hazardous situation which, if not avoided,

will result in death or serious injury.

Danger

“Warning”indicates a hazardous situation which, if not avoided,

could result in death or serious injury.

Warning

“Caution”indicates a hazardous situation which, if not avoided,

could result in minor or moderate injury.

Caution

“Attention”indicates there are potential risks, if fail to prevent,

may lead to equipment cannot normally or property damage.

Attention

“Note”provides additional information and tips that are valuable

for the optimal operation of the product.

Note

SOFAR 250/255KTL-HV User Manual

- 3 -

1.Basic Safety Information

Outlines of this Chapter

Please read the instruction carefully. Faulty operation may cause serious

injury or death.

Safety Instruction

Introduce the safety instruction during installation and operation of SOFAR

250/255KTL-HV.

Symbols Instruction

This section gives an explanation of all the symbols shown on the inverter

and on the type label.

1.1. Requirement for Installation and Maintenance

Installation of SOFAR 250/255KTL-HV on-grid inverter must conform with

laws, regulations, codes and standards applicable in the jurisdiction.

Before installing and adjusting the produce, please read all of instructions,

cautions and warnings in this manual.

Before connecting the product to the electrical utility grid, contact the local

utility company for allowance. Also, this connection must be made only by

qualified electrician.

If the failure persists, please contact the nearest authorized maintenance

center. If you don't know which service center is closest to you, please

contact your local distributor. Don't repair the product by yourself, which

may lead serious injury or damage.

Prior to installing and maintaining the equipment, a DC switch should be

utilized to disconnect the high voltage DC from the PV array; otherwise, the

resulting high voltage may cause serious injury.

If you have any question or problem when you read the

following information, please contact Shenzhen SOFARSOLAR

CO., Ltd.

Note

SOFAR 250/255KTL-HV User Manual

- 4 -

Qualified Person

When inverter is working, it contains lethal voltages and went hot in some

area. Improper installation or misoperation could cause serial damage and

injury. To reduce the risk of personal injury and to ensure the safe

installation and operation of the product, only a qualified electrician is

allowed to execute transportation, installation, commissioning and

maintenance. Shenzhen SOFARSOLAR Co, Ltd does not take any

responsibility for the property destruction and personal injury because of

any incorrect use.

Label and Symbols

SOFAR 250/255KTL-HV has type label attach the side of product which

contact important information and technical data, the type label must

permanent attached to the product.

SOFAR 250/255KTL-HV has warming symbol attache the product which

contact information of safety operation. The warming symbol must

permanent attached to the product.

Installation location requirement

Please install the inverter according to the following section. Place inverter

in an appropriate bearing capacity objects (such as solid brick wall, or

strength equivalent mounting surface, etc.) and make sure inverter vertical

placed. A proper installation location must have enough space for fire

engine access in order for maintenance if faulty occur. Ensure the inverter

is installed in a wall ventilated environment and have enough air cooling

cycle. Air humidity should less than 90%.

SOFAR 250/255KTL-HV User Manual

- 5 -

Transportation Requirement

Inverter is in the good electrical and physical condition when it ship out from

factory. During transport, inverter must be placed in its original package or

other proper package. Transportation company should responsible for any

damage during transport period.

If you find any packing problems that may cause the damage of inverter or

any visible damage, please notice the responsible transportation company

immediately. You can ask your installer or SOFARSOLAR for help if

necessary.

Electrical Connection

Please comply with all the current electrical regulations about accident

prevention in dealing with the current inverter.

Before the electrical connection, use opaque material to cover the

PV modules or disconnect PV string DC switch. PV arrays will

produce dangerous voltage if it is exposure under sun

Danger

All operation must accomplish by certified electrical engineer Must

be trained;

Completely read the manual operation and understand all

information

Warming

Must get permission by local utility company before connecting to

grid and the connection must be done by certified electrical

engineers

Attention

Operation

Touching the utility grid or the terminal conductors can lead to lethal

electric shock or fire!

Do not touch non-insulated cable ends, DC conductors and any live

components of the inverter.

Attention to any electrical relevant instruction and document.

Danger

SOFAR 250/255KTL-HV User Manual

- 6 -

Enclosure or internal components may get hot during operation. Do

not touch hot surface or wear insulated gloves.

Keep it away from kids !

Attention

Maintenance and repair

Before any repair work, turn OFF the AC circuit breaker between

the inverter and electrical grid first, then turn OFF the DC switch.

After turning OFF the AC circuit breaker and DC switch wait for at

least 5 minutes before carry any maintenance or repair work.

Danger

Inverter should not work again until removing all faults. If any repair

work is required, please contact local authorized service centre.

Should not open the inverter cover without authorized permit,

SOFARSOALR does not take any responsibility for that.

Attention

EMC/Noise Level

Electromagnetic compatibility (EMC) refers to that on electrical equipment

functions in a given electromagnetic environment without any trouble or

error, and impose no unacceptable effect upon the environment. Therefore,

EMC represents the quality characters of an electrical equipment.

The inherent noise-immune character: immunity to internal electrical noise

External noise immunity: immunity to electromagnetic noise of external

system

Noise emission level: influence of electromagnetic emission upon

environment

Electromagnetic radiation from inverter may be harmful to health!

Please do not continue to stay away from the inverter in less than

20cm when inverter is working.

Danger

SOFAR 250/255KTL-HV User Manual

- 7 -

1.2. Symbols and signs

High voltage of inverter may be harmful to health!

Only certified engineer can operate the product;

Juveniles, Disable, should not use this product;

Danger

Caution of burn injuries due to hot enclosure!

Only touch the screen and pressing key of the inverter while it is

working.

Caution

PV array should be grounded in accordance to the requirements of

the local electrical grid company.

Attention

Ensure the maximum DC voltage input is less than the maximum

inverter DC voltage (including in low temperature condition). Any

damage cause by overvoltage, SOFARSOLAR will not take the

responsibility including warranty.

Warning

Signs on the Product and on the Type Label

SOFAR 250/255KTL-HV has some safety symbols on the inverter. Please

read and fully understand the content of the symbols before installation.

Symbols

Name

Explanation

This is a residual

voltage in the

inverter!

After disconnect with the DC side, there

is a residual voltage in the inverter,

operator should wait for 5 minutes to

ensure the capacitor is completely

discharged.

Caution of high

voltage and electric

shock

The products operates at high voltages.

Prior to performing any work on the

product, disconnect the product from

This manual suits for next models

Table of contents

Popular Inverter manuals by other brands

Fourgroup

Fourgroup Easy use and Programming Handbook

Velleman

Velleman PI300M user manual

Sungrow

Sungrow SG350HX-US user manual

WilTec

WilTec 61897 Operation manual

SMA

SMA SUNNY BOY STORAGE 2.5 Quick reference guide

Simplicity

Simplicity LANDLORD 316 product manual

Santak

Santak SMAX 3000 user manual

ATON

ATON RA.Store-3 user manual

ZIEHL-ABEGG

ZIEHL-ABEGG FXET4AMQ operating instructions

Tektronix

Tektronix CFG250 Operator's manual

Champion

Champion 200989 Operator's manual

Vanner

Vanner 20-500 Series owner's manual

GE GEP user manual

Astrel Group

Astrel Group Power Reducer Installation and instruction manual

MULTIQUIP

MULTIQUIP GDP-5H Operation and parts manual

GoWISE

GoWISE PS1007 user manual

Promate

Promate PM13500D ES Operator's manual

Mastervolt

Mastervolt WHISPER 3.5M3000 RPM user manual