Sofar 60KTLX-G3 User manual

SOFAR 60...80KTLX-G3
Shenzhen SOFARSOLAR Co.,Ltd.
USER
MANUAL

Preface
Basic Safety Information
Product Characteristics
2.1 Intended Use
2.2 Function Description
2.3 Electrical Block Diagram
2.4 Eciency curve
1.1 Requirement for Installation and Maintenance
1.2 Symbols and Signs
Inverter Storage
Installation
4.1 Installation Process
4.2 Checking Before Installation
4.3 Tools
4.4 Determining the Installation Position
4.5 Moving of Inverter
4.6 Installation
Electrical Connection
01
02
03
04
05
CONTENTS
21
14
14
14
16
17
18
19
13
03
03
06
01
08
08
10
11
12
5.1 Electrical Connection
5.2 Grounding Connection (PE)
5.3 Connect Grid Side of Inverter (AC-Output)
21
22
23

Operation interface
5.4 Connect PV Side Of Inverter(DC-Input）
5.5 Wiring method recommended
5.6 Communication Connection
5.7 Feed-in limitation connecting line
Commissioning of inverter
6.1 Cable Connection Inspection
6.2 Start Inverter
Trouble shooting and maintenance
9.1 Troubleshooting
10.1 Fan maintenance
10.2 Replacing a Fan
Maintenance
06
8.1 Operation and Display Panel
8.2 Standard Interface
8.3 Main Interface
8.4 Updating Inverter Software
08
09
10
27
29
30
32
33
33
33
39
39
39
41
45
46
46
54
54
56
SOFAR monitor APP
7.1 Software Downloads
7.2 Account registration and login
7.3 Local Monitoring
7.4 APP operation manual
07 34
39
34
36
38
11.1 Technical Data List
Technical Data
11 58
58

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 condi-
tions 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.
Copyright Declaration
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 any form and any way. All rights reserved, SOFAR-
SOLAR reserves the 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
V2.3 20231013
Revised version
Scope of Validity
This manual contains important instructions for: SOFAR 60KTLX-G3、SOFAR 80KTLX-G3
Outline
This manual is an integral part of SOFAR 60KTLX to 80KTLX-G3. It describes the assembly,
installation, commissioning ,maintenance and failure of the product. Please read it carefully
before operating.
Target Group
This manual is for qualified electricians. The tasks described in this manual only can be
performed by qualified electricians.
60...80KTLX-G3 User Manual
01

Symbols Used
The following types of safety instruction and general information appear in this
document as described below:
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60...80KTLX-G3 User Manual
DANGER
WARNING
CAUTION
ATTENTION
NOTE
“Danger”indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
“Warning”indicates a hazardous situation which, if not avoided,could result in death or
serious injury
“Caution”indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury
“Attention”indicates there are potential risks, if fail to prevent, may lead to equipment
cannot normally or property damage
“Note”provides additional information and tips that are valuable for the optimal opera-
tion of the product

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 60...80KTLX-G3.
Symbols Instruction
This section gives an explanation of all the symbols shown on the SOFAR 60...80KTLX-G3
on-grid inverter and on the type label.
1.1 Requirement for Installation and Maintenance
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 60...80KTLX-G3 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 60...80KTLX-G3 has warming symbol attache the product which contact informa-
tion of safety operation. The warming symbol must permanent attached to the product.
•Installation of SOFAR 60...80KTLX-G3 on-grid inverter must conform with laws, regula-
tions, 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 com-
pany 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.
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60...80KTLX-G3 User Manual
NOTE
If you have any question or problem when you read the following information, please
contact Shenzhen SOFARSOLAR CO., Ltd.

Installation location requirement
Please install the inverter according to the following section. Place inverter in an appropri-
ate 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%.
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 is necessary.
Electrical Connection
Please comply with all the current electrical regulations about accident prevention in
dealing with the current inverter.
All operation must accomplish by certified electrical engineer
• Must be trained;
• Completely read the manual operation and understand all information.
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60...80KTLX-G3 User Manual
DANGER
WARNING
ATTENTION
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.
Must get permission by local utility company before connecting to grid and the
connection must be done by certified electrical engineers.

DANGER
Operation
Maintenance and repair
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 unaccept-
able 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
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60...80KTLX-G3 User Manual
DANGER
ATTENTION
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.
Enclosure or internal components may get hot during operation. Do not touch hot
surface or wear insulated gloves.
Keep it away from kids!
DANGER
ATTENTION
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.
Inverter should not work again until removing all faults. If any repair work is required,
please contact local authorized service center.
Should not open the inverter cover without authorized permit, SOFARSOALR does not
take any responsibility for that.

1.2 Symbols and signs
Signs on the Product and on the Type Label
SOFAR 60...80KTLX-G3 has some safety symbols on the inverter. Please read and fully
understand the content of the symbols before installation.
Symbols Name Explanation
5min
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.
This is a residual
voltage in the
inverter
The products operates at high voltages. Prior to
performing any work on the product, disconnect the
product from voltage sources. All work on the
product must be carried out by qualified persons
only.
Caution of high
voltage and
electric shock
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60...80KTLX-G3 User Manual
DANGER
CAUTION
CAUTION
ATTENTION
High voltage of inverter may be harmful to health!
Only certified engineer can operate the product;
Juveniles, Disable, should not use this product;
Keep this product out of the reach of children;
Caution of burn injuries due to hot enclosure!
Only touch the screen and pressing key of the inverter while it is working
PV array should be grounded in accordance to the requirements of the local electrical
grid company
Ensure the maximum DC voltage input is less than the maximum inverter DC voltage
(including in low temperature condition). Any damage cause by overvoltage, SOFARSO-
LAR will not take the responsibility including warranty

The product can get hot during operation. Avoid
contact during operation. Prior to performing any work
on the product, allow the product to cool down
suciently
Caution of hot
surface
The product comply with the CE Certification
Comply with the
Conformite
Europeenne
(CE) Certification
This symbol indicates the position for the connections
of an additional equipment grounding conductor
Read all documentation supplied with the product
before install
Grounding
Terminal
Observe the
documentation
Positive pole and negative pole of the input voltage (DC)
Positive pole and
negative pole
Indicated the temperature allowance range
Temperature
RCM (Regulatory Compliance Mark)
The product complies with the requirements of the
applicable Australian standards.
RCM logo
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60...80KTLX-G3 User Manual

2. Product Characteristics
Outlines of this Chapter
Product Dimensions
Introduce the field of use and the dimensions of the SOFAR 60...80KTLX-G3 on-grid inverter.
Function Description
Introduce working principle and internal components of the SOFAR 60...80KTLX-G3 on-grid
inverter.
Electrical block diagram
Introduce the electrical block diagram of the product
2.1 Intended Use
The SOFAR 60...80KTLX-G3 on-grid inverter can transform a direct electric current (DC)
coming from a photovoltaic generator (PV) into an alternating electric current (AC)
Suitable for being fed into the utility grid.
The SOFAR 60...80KTLX-G3 on-grid inverter may only be operated with PV arrays (photovol-
taic module and cabling) for on grid condition. Do not use this product for any other or
additional purposes. Any damage or property loss due to any use of the product other
than described in this section, SOFARSOLAR will not take the responsibility. DC input of
the product must be PV module, other source such like DC sources, batteries will against
the warranty condition and SOFARSOLAR will not take the responsibility.
According to the SOFAR 60...80KTLX-G3 configurations, for the TT type of electricity grid，
the voltage between neutral and earth should be less than 30V. Inverters are compatible
with TN-S, TN-C, TN-C-S, TT, IT grid.
Figure 2-1 PV Grid-Tied System
Figure2-2 Overview of the grid types
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60...80KTLX-G3 User Manual
Supported grid types
Grid

Product Dimensions
The choice of optional parts of inverter should be made by a qualified technician who
knows the installation conditions clearly.
Dimensions Description
• SOFAR 60...80KTLX-G3
L×W×H=687*561*275mm
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60...80KTLX-G3 User Manual
Function description of inverter box bottom
Figure 2-3 Front, side and back of the machine (80KW)
Figure 2-4 Bottom view of the machine (80KW)
Figure 2-5 Bottom view of SOFAR 60...80KTLX-G3
687 275
512 550
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60...80KTLX-G3 User Manual
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10
Labels on the equipment
Note: label must NOT be hidden with objects and extraneous parts (rags, boxes, equip-
ment, etc.,); they must be cleaned regularly and kept visible at all times.
Figure 2-6 Product label
2.2 Function Description
DC power generated by PV arrays is filtered through Input Board then enter Power Board.
Input Board also offer functions such as insulation impedance detection and input DC
voltage/ current detection. DC power is converted to AC power by Power Board. AC power
is filtered through Output Board then AC power is fed into the grid. Output Board also
offer functions such as grid voltage/ output current detection, GFCI and output isolation
relay. Control Board provides the auxiliary power, controls the operation state of inverter
and shows the operation status by Display Board. Display Board displays fault code when
inverter is abnormal operation conditions. At the same time, Control Board can trigger the
replay to protect the internal components.
Function Module
A. Energy management unit
Remote control to start/ shunt down inverter through an external control.
B. Feeding reactive power into the grid
The inverter is able to produce reactive power, thus to feed it into the grid through the
setting of the phase shift factor. Feed-in management can be controlled directly by the
APP, or through a RS485 interface.(Optional)

60...80KTLX-G3 User Manual
11
C. Limited the active power fed into grid
If enable the limited of active power function, inverter can limit the amount of active
power fed into the grid to the desired value (expressed as percentage).
D. Self-power reduction when grid is over frequency
If grid frequency is higher than the limited value, inverter will reduce the output power to
ensure the grid stability.
E. Data transmission
Inverter can be monitored remotely through an USB stick logger(WIFI) or software
Storage Monitor(optional) which is based on RS485 interface.
F. Software update
USB interface for uploading the firmware, remotely uploading is available through an
USB stick logger(WIFI)
2.3 Electrical block diagram
SOFAR 60...80KTLX-G3 has 12 DC input strings, 6 MPPT trackers to tracking the maximum
powerpoint, then converters the direct current of PV array to grid-compliant, three phase
current and feeds in into the utility grid. Both DC and AC side has Surge Protection Device
(SPD).
Figure 2-7 Main circuit structure

60...80KTLX-G3 User Manual
2.4 Eciency curve
12
Figure 2-8 Power eciency curve(take 80KW for example)
93
95
97
99
101
5% 10% 20% 30% 50% 75% 100%
Efficieny(%)
%of Rated Output Power
Efficiency curve
550V
625V
800V

3. Inverter Storage
If inverter is not installing immediately, storage condition need meet below require-
ments:
• Place inverter into the original package and leave desiccant inside, sealed tight with
taps.
• Keep the storage temperature around -40℃～70℃, Relative humidity 5～95%, no
condensation
Figure 3-1 Storage temperature and humidity
• The maximum stacking layer number cannot exceed 4 layers.
• If the inverter be storage for more than half years, the inverter needs to be fully
examined and tested by qualified service or technical personnel before using.
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60...80KTLX-G3 User Manual

4. Installation
Outlines of this Chapter
This topic describes how to install this product, please read carefully before install.
4.1 Installation Process
Start check before
installation
prepare installation
tools
determine the
installation position
End install the rear panel moving the Inver install the Inver
4.2 Checking Before Installation
Checking Outer Packing Materials
Before unpacking, please check the condition of the outer package materials if any
damaged found, such as holes, cracks, please not unpack the product, contact your
distributor immediately. Recommend installing the product within 24 hours after unpack-
ing the package.
Checking Deliverable
After unpacking, please check according to following table, to see whether all the parts
were included in the packing, please contact your distributor immediately if anything
missing or damage.
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60...80KTLX-G3 User Manual
DANGER
CAUTION
ATTENTION
Do not install the product on flammable material.
Do not store this product in potentially explosive atmospheres.
The enclosure and heat sink will get hot during operation, please do not mount the
product at a easy to reach location.
Consider the weight of this product when doing transport and moving.
Choose an appropriate mounting position and surface.
At least two persons for installation.

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60...80KTLX-G3 User Manual
Figure 4-1Components and mechanical parts that inside the package
SOFAR 60KTLX-G3
×1
Rear Panel
×1
M8*80 expansion bolt
×4
PV- metal pin
×12
PV- input connector
×12
M6*30 Hexagon
screws (For locking
the Rear Panel)
×2
AC terminal
insulation partition
×5
Quality Certificate
×1
USB WiFi Stick
Logger
×1
AC waterproof cover
×1
PV+ metal pin
×12
PV+ input connector
×12
M4 cross screw (For
locking the
waterproof cover)
×6 pcs
M6*12 Hexagon
screws (For
Grounding)
×1 pcs
Documents
×3
COM connector
×1
①
③
⑤
⑦
⑨
⑪
⑬
②
④
⑥
⑧
⑩
⑫
⑭
⑬ ⑭

4.3 Tools
Prepare tools required for installation and electrical connection as following table:
Table 4-2 Installation tools
Description: Hammer Drill Recommend
drill @ 10mm
Function: Used to drill holes on the wall
Description: Removal Tool
Function: Remove PV Connector
Description: Wire Stripper
Function: Used to peel cable
Description: With an open end of larger
than or greater than 32 mm
Function:
Used to tighten expansion bolts
Description: M6
Function: M6 use to uninstall and install
the front top cover and down cover
Description: Crimping Tool
Function: Use to crimp cable on grid
side, load side and CT extensive cable
Description: Multimeter
Function:Check grounding cable, PV
positive and negative pole
Description: Level
Function: Ensure the rear panel is
properly installed
Description: ESD gloves
Function: Installer wear when installing
product
Description: Safety goggles
Function: Installer wear when installing
product
Description: Marker
Function: Mark signs
Description: Measuring Tape
Function: Measure distance
Description: Screwdriver
Function: Use to tighten and loosen
screws when installing AC power cable
Use to remove AC connectors from the
product
Description: Rubber Mallet
Function: Used to hammer expansion
bolts into holes
①
③
⑤
⑦
⑨
⑪
⑬
⑮ ⑯
②
④
⑥
⑧
⑩
⑫
⑭
Description: Torque wrench
Function: Connect AC connector
Description: Mask
Function: Installer wear when installing
product
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60...80KTLX-G3 User Manual

4.4 Determining the Installation Position
Select a appropriate location to install the product to make sure the inverter can work in a high
efficiency condition. When selecting a location for the inverter, consider the following:
Note: Install vertical or backward tilt within 0-15°, Do not install forward or upside down!
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60...80KTLX-G3 User Manual
Figure 4-2 Clearance for single inverter
Figure 4-1 Installation Position Selection
0...75°
50cm
80cm
50cm
80cm