Sofar Solar 17KTLX-G3 Manual


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S h e n z h e n S O FA R S O L A R C O . , L t d .
User manual
Solar Grid-tied Inverter
Product Model: SOFAR 15~24KTLX-G3
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
I
Catalog
Preface.........................................................................................................................
II
1. Basic Safety Information.....................................................................................
- 1 -
1.1. Requirement for Installation and Maintenance.................................- 1 -
1.2. Symbols and signs...............................................................................
- 4 -
2. Product Characteristics.......................................................................................
- 7 -
2.1. Intended Use.......................................................................................
- 7 -
2.2. Function Description........................................................................
- 11 -
2.3. Electrical block diagram....................................................................
- 12 -
2.4. Efficiency and derating curve...........................................................
- 12 -
3. Inverter Storage.................................................................................................
- 14 -
4. Installation........................................................................................................
- 15 -
4.1. Installation Process...........................................................................
- 15 -
4.2. Checking Before Installation.............................................................
- 15 -
4.3. Tools..................................................................................................
- 17 -
4.4. Determining the Installation Position..............................................- 19 -
4.5. Moving of inverter............................................................................
- 21 -
4.6. Installation........................................................................................
- 22 -
5. Electrical Connection........................................................................................
- 24 -
5.1. Electrical Connection........................................................................
- 25 -
5.2. Grounding Connection (PE)..............................................................
- 25 -
5.3. Connect grid side of inverter (AC-Output).......................................- 27 -
5.4. Connect PV side of inverter (DC-Input)............................................
- 31 -
5.5. Communication Connection.............................................................
- 33 -
6. Commissioning of inverter
................................................................................
- 38 -
6.1. Cable Connection Inspection............................................................
- 38 -
6.2. Start Inverter.....................................................................................
- 38 -
7. Operation interface...........................................................................................
- 40 -
7.1. Operation and Display Panel............................................................
- 40 -
7.2. Standard Interface............................................................................
- 41 -
7.3. Main Interface..................................................................................
- 43 -
7.4. Updating Inverter Software..............................................................
- 48 -
8. Trouble shooting and maintenance..................................................................
- 51 -
8.1. Troubleshooting ................................................................................
- 51 -
8.2. Maintenance .....................................................................................
- 62 -
8.3. Fan Maintenance..............................................................................
- 63 -
9. Technical Data...................................................................................................
- 64 -
10. Quality Assurance...........................................................................................
- 68 -
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
II
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.
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, SOFARSOLAR reserves the right of final
interpretation. This manual subject to modify according to user's or customer's
feedback. Please check our website at http://www.sofarsolar.com for lasted version.
The current Version updated at 20220218.
Shenzhen SOFARSOLAR Co., Ltd
Location: 11/F., Gaoxinqi Technology Building, No.67 Area, Xingdong Community,
Xin an Sub-district, Bao an District, Shenzhen City,China’ ’
Postcode 518000
Company Website www.sofarsolar.com
Email service@sofarsolar.com
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
- 1 -
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
15~24KTLX-G3
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 15~24KTLX-G3 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.
If you have any question or problem when you read the
following information, please contact Shenzhen SOFARSOLAR
CO., Ltd.
Note
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
- 2 -
Qualified Person
When inverter is working, it contains lethal voltages and went hot in some area.
Improper installation or maloperation 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 15~24KTLX-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 15~24KTLX-G3 has warming symbol attached 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 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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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 15~24KTLX-G3 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 voltage sources. All work
on the product must be carried out by
qualified persons only.
Caution of hot surface
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 sufficiently
Comply with the
Conformite Euroeenne (CE)
Certification
The product complies with the CE
Certification
Grounding Terminal
This symbol indicates the position for
the connections of an additional
equipment grounding conductor
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
- 6 -
Observe the
documentation
Read all documentation supplied with
the product before install
Positive pole and negative
pole
Positive pole and negative pole of the
input voltage (DC)
Temperature
Indicated the temperature allowance
range
RCM logo
RCM (Regulatory Compliance Mark)
The product complies with the
requirements of the applicable
Australian standards.
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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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 15KTLX-G315KTLX-G3-A17KTLX-G320KTLX-G320KTLX-G3-A
22KTLX-G324KTLX-G324KTLX-G3-A
L×W×H=520*430*189mm
Figure 2-3 Front, side and back of the machine (15~24K)
Figure 2-4a Bottom view(15~17K) Figure 2-4b Bottom view(20~24K)
Note: 15~24K supports 4-channel PV string input.
Figure 2-5 bracket dimensions
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Function description of inverter box bottom
1. DC Switch
5. Breather valve
2. DC negative poles connecters
6. COM Port (for RS485 communication)
3. DC positive poles connecters
7. AC output
4. USB Port (for WIFI or Ethernet
communication)
8. Fans
Figure 2-6 Bottom view of the SOFAR 15~24KTLX-G3
Labels on the equipment
Note: label must NOT be hidden with objects and extraneous parts (rags, boxes, equipment,
etc.,); they must be cleaned regularly and kept visible at all times.
8
1 2 3 4 5 6 7
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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acquisition stick (WIFI or Ethernet) is also available.
2.3. Electrical block diagram
Figure 2-8 Schematic diagram
2.4. Efficiency and derating curve
Figure 2-9 Power efficiency curve (take 20KW for example)
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
- 13 -
Figure 2-10 Rated Power ratio vs Grid Voltage
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
- 15 -
4.Installation
Outlines of this Chapter
This topic describes how to install this product, please read carefully before install.
Do NOT install the product on flammable material
Do NOT store this product in potentially explosive atmospheres
Dangers
The enclosure and heat sink will get hot during operation, please
do not mount the product at a easy to reach location
Caution
Consider the weight of this product when doing transport and
moving
Choose an appropriate mounting position and surface
At least two persons for installation
Attention
4.1. Installation Process
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
unpacking the package.
Checking Deliverable
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
- 17 -
8
M6*12 Hexagon screws
1 PCS
9
Manual
1PCS
10
Warranty Card
1PCS
11
Quality Certificate
1PCS
12
R-type terminal
5PCS
13
Communication
Terminal
1PCS
14
USB acquisition stick
(WIFI/Ethernet)
1 PCS (Optional)
4.3. Tools
Prepare tools required for installation and electrical connection as following
table:
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Figure 4-2 Installation tools
No
Tool
Description
Function
1
Hammer Drill
Recommend
drill @ 60mm
Used to drill holes on the wall
2
Screwdriver
Use to tighten and loosen
screws when installing AC
power cable
Use to remove AC connectors
from the product
3
Removal Tool
Remove PV Connector
4
Wire Stripper
Used to peel cable
5
M6 hexagon
wrench
M6 use to uninstall and install
the front top cover and down
cover
6
Crimping Tool
Use to crimp cable on grid
side, load side and CT
extensive cable
7
Multimeter
Check grounding cable, PV
positive and negative pole
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
- 19 -
8
Marker
Mark signs
9
Measuring
Tape
Measure distance
10
Level
Ensure the rear panel is
properly installed
11
ESD gloves
Installer wear when installing
product
12
Safety goggles
Installer wear when installing
product
13
Mask
Installer wear when installing
product
4.4. Determining the Installation Position
Select an 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!
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Figure 4-1Installation Position Selection
Figure 4-2Clearance for single inverter
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Figure 4-3 Clearance for multiple inverters
4.5. Moving of inverter
Unload the inverter from package, horizontally move to the install position. When
open the package, at least two operators insert the hands to the back of heat sink
part.
Figure 4-5 Move inverter from package (1)
Figure 4-6 Move inverter from package (2)
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Figure 4-8 Installation instruction (2)
Step 5User can use a lock to block the inverter in case of stealing (Optional)
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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5.Electrical Connection
Outlines of this Chapter
This section introduces the electrical connection for the product. Please read the
information carefully, it may helpful to understand the grounding wiring, DC input
connection, AC output connection and communication connection.
Caution:
Before performing electrical connections, ensure the DC switch is OFF and AC
circuit breaker is OFF. Waiting 5 minutes for the capacitor to be electrically
discharged.
Installation and maintenance should be done by certified electrical
engineer
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
Danger
For this product, the open circuit voltage of PV strings should not
greater 1100V
Note
The connected panel must meet the standard IEC61730A
String
Model
IscPV(maximum)
Maximum output current
(A)
SOFAR 15KTLX-G3
36A/36A
23.9A
SOFAR 15KTLX-G3-A
23.9A
SOFAR 17KTLX-G3
27.1A
SOFAR 20KTLX-G3
31.9A
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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SOFAR 20KTLX-G3-A
31.9A
SOFAR 22KTLX-G3
35.1A
SOFAR 24KTLX-G3
38.3A
SOFAR 24KTLX-G3-A
38.3A
Note: In the above table, the first value of IscPV is for MPPT1, the second value of
IscPV is for MPPT2.
5.1. Electrical Connection
Figure 5-1 flowchart for connecting cables to the inverter
5.2. Grounding Connection (PE)
Connect the inverter to the grounding electrode using ground cable
SOFAR 15~24KTLX-G3 is a transformerless inverter which requires the
positive pole and negative pole of the PV array are NOT grounded.
Otherwise, it will cause inverter failure. In the PV system, all
non-current-carrying metal parts (such as mounting frame, combiner box
enclosure, etc.) should be connected to earthed.
Note
Preparation: prepare the grounding cable (recommend greater than
4mm yellow-green outdoor cable)
²
²
²
²²
Procedure:
Step 1: Remove the insulation layer with an appropriate length using a wire
stripper shown as figure 5-2
SOFAR 15~24KTLX-G3 User manual
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Figure 5-2 Grounding connection instruction 1( )
Note the length of L2 should 2~3mm higher than L1
Step 2: Insert the exposed core wires into the OT terminal and crimp them by
using a crimping tool, as shown as figure 5.3. Recommend using OT terminal:
OT-M6, Cable: 4mm2
Figure 5-3 Grounding connection instruction 2( )
Note 1: L3 is the length between the insulation layer of the ground cable and
crimped part. L4 is the distance between the crimped part and core wires
protruding from the crimped part.
Note 2: The cavity formed after crimping the conductor crimp strip shall wrap the
core wires completely. The core wires shall contact the terminal closely.
Step 3: Tighten the OT terminal by using M6 screw. Recommend torque is 5N.m
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Figure 5-4 Inverter external grounding instruction diagram
5.3. Connect grid side of inverter (AC-Output)
SOFAR 15~24KTLX-G3 connect to utility grid by using AC power cable. The AC
connection must meet the requirement of local grid operator
Ban multiple Inverters use one circuit breaker
Ban connect loads between inverter and circuit breaker
Caution
Must use five core outdoor cable, the recommend AC cable and Residual current
breaker (RCB) as below table 5-1:
Model
Cross section
area of Cu cable
mm2
Muti-core
outdoor cable
( )mm
AC Circuit Breaker
specification
SOFAR
15KTLX-G3
6~12
recommend 10
18~25
40A/230V/3P current
leakage protection 0.1A
SOFAR
17KTLX-G3
6~12
recommend 10
18~25
40A/230V/3P current
leakage protection 0.1A
SOFAR
20KTLX-G3
6~12
recommend 10
18~25
50A/230V/3P current
leakage protection 0.1A
1. M6 screw 2. OT terminal 3. threaded hole
SOFAR 15~24KTLX-G3 User manual
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SOFAR
22KTLX-G3
7~14
recommend 12
18~25
63A/230V/3P current
leakage protection 0.1A
SOFAR
24KTLX-G3
7~14
recommend 12
18~25
63A/230V/3P current
leakage protection 0.1A
Table 5-1 The recommend AC cable and Residual current breaker (RCB)
Figure 5-5 Incorrect connection between load and inverter
The resistance at connection point must less than 2Ω. In case to have a properly
anti-islanding function, please choose the high-quality PV cable and ensure the
power loss is less than 1%. Meanwhile, the inverter AC side to grid connection
point must less than 100m. the relation between cable length, cross section area
and power loss as below:
Figure 5-6 relation between cable length, cross section area and power loss
SOFAR 15~24KTLX-G3 User manual
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The AC output terminal of this product is equipped with high current 5-core
terminal block and customized AC output waterproof cover, which can meet the
IP65 level requirements after installation. AC cable need customer self connect, the
out looking is as below figure 5-7:
Figure 5-7 SOFAR 15~24KTLX-G3 AC terminal connector picture
Wiring Procedure as following:
Step 1: Remove the AC waterproof cover screw with a screwdriver, and take out
the stopper in the PG waterproof joint.
Figure 5-8 Removing AC waterproof cover diagram
Step 2: Select the appropriate cable diameter according to table 5-1, process the
cable according to the following picture size requirements, and then pass through
PG waterproof joint;
Multi-core cable
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R type terminal, Insulating sleeve,
RNBS14-6 (8awg). terminal shall not be exposed.
Figure 5-9 AC cable connection instruction diagram (1)
Step 3: After assembling the PG waterproof connector, connect the cable to the AC
terminal block L1, L2, L3, N, PE contacts, and fasten them (4~5 N · m). Tighten the
lock nut of PG terminal clockwise (7~8 N · m).
Figure 5-10 AC cable connection instruction diagram (2)
SOFAR 15~24KTLX-G3 User manual
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5.4. Connect PV side of inverter (DC-Input)
Table 5-2 recommend DC input cable size (maximum tolerance voltage >= 1100V
PV cable)
Copper cable cross section areamm2
Cable OD (mm)
2.5~6.0
6.0~9.0
Table 5-2 Recommend DC cable size
Step1: Find the metal contact pins in the accessories bag, connect the cable
according below diagram (1.Positive cable, 2. negative cable)
Figure 5-11 DC cable connection 1( )
Step 2: Crimp the PV metal contact pin to the striped cable using a proper crimping
pliers;
Figure 5-12 DC cable connection(2)
Step 3: Insert wire into the connector cap nut and assemble into the back of male
or female plug, When you heard a “click”, the pin tact assembly is seated correctly.
(3. Positive Connector, 4. negative connector);
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Figure 5-13 DC cable connection(3)
Step 4: Measure PV voltage of DC input with multimeter, verify DC input cable
polar and connect DC connector with inverter until hearing a slight sound indicated
connection succeed.
Figure 5-14 DC cable connection(4)
Figure 5-15 Use a multimeter to check the positive and negative electrodes
Note
Please use multimeter to make sure the PV array positive pole and
negative pole!
Dealing If need to remove the PV connector from inverter side, please use
the Removal Tool as below diagram, move the connector gently.
Before, moving the positive and negative connector, please make
sure “DC Switch” is on OFF position.
NOTE
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Figure 5-16 Removal DC connector
5.5. Communication Connection
When layout the wiring diagram, please separate the communication
wiring and power wiring in case the signal be affected.
Note
15~24KTLX-G3 inverter has one USB Port and one COM Port, as shown in the
following figure.
1.USB Port 2.COM Port
Figure 5-17 Communication connection Port
5.5.1. USB Port
Port Description
USB port
USB flash disk access
Use for updating the software
USB acquisition stick
(WIFI or Ethernet) access
Use for remote data acquisition and
upgrading of inverter
1 2
Zoom in
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Procedure
For details, please refer to the user manual of USB acquisition stick.
5.5.2. COM Multi function communication port
Table 5-3 Recommend COM cable size
Name
Type
Outer diameter
(mm)
Area
(mm²)
RS485
Communication
Wire
Outdoor shielded twisted
pair meets local standards
2 or 3core4~8
0.25~1
Port Description
PIN
Define
Function
Note
1
RS485A
RS485 signal+
Wire connection
monitoring or multiple
inverter monitoring
2
RS485A
RS485 signal+
3
RS485B
RS485 signal-
4
RS485B
RS485 signal-
5
Electric meter
RS485A
Electric meter RS485
signal+
Wire connection Electric
meter
6
Electric meter
RS485B
Electric meter RS485
signal-
7
GND.S
Communication
ground
As RS485 signal ground or
DRMS port ground
8
DRM0
Remote shunt down
DRMS port
9
DRM1/5
DRMS port logical IO
10
DRM2/6
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11
DRM3/7
12
DRM4/8
13-16
Blank PIN
N/A
N/A
Procedure
5.5.3. Communications Port Description
This topic describes the functions of the RS485 and WIFI.
RS485
By RS485 interface, transfer the inverter power output information, alarm
information, operation state to the PC terminal or local data acquisition device,
then uploaded to the server.
SOFAR 15~24KTLX-G3 User manual
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Figure 5-18 Picture of the RS485/USB converter and PC terminal
If only one SOFAR 15~24KTLX-G3 is used, use a communication cable, refer to
section 5.5.2 for COM pin definition, and choose either of the two RS485 ports.
Figure 5-19 A single SOFAR 15~24KTLX-G3 connecting communications
If multiple SOFAR 15~24KTLX-G3 are used, connect all SOFAR 15~24KTLX-G3 in
daisy chain mode over the RS485 communication cable. Set different Modbus
address (1~31) for each inverter in LCD display.
Figure 5-20 Multi SOFAR 15~24KTLX-G3 connecting Communications
Register remote monitoring of SOFAR 15~24KTLX-G3 at its relevant website or APP
according to monitoring device SN.
SOFAR 15~24KTLX-G3 User manual
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WIFI / Ethernet
By the USB acquisition stick (WIFI / Ethernet), transfer the inverter power output
information, alarm information, operation state to the PC terminal or local data
acquisition device, then uploaded to the server. Register remote monitoring of
SOFAR 15~24KTLX-G3 at its relevant website or APP according to monitoring device
SN.
Figure 5-21 Connect one USB acquisition stick (WIFI version) to wireless router
Figure 5-22 Connect multiple USB acquisition stick (WIFI version) to wireless router
The length of the RS485 communication cable should be less
than 1000 m.
The length of the WIFI communication cable should be less than
100 m.
If multiple SOFAR 15~24KTLX-G3 are connected to the
monitoring device over an RS485/USB converter, a maximum of
31 inverters can be connected in a daisy chain.
Note
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Shenzhen SOFARSOLAR Co., Ltd. is not responsible for any consequences
arising out of incorrect country code selection.
If the inverter indicates any fault, please refer to Section 8.1 of this manual
trouble shooting for help.
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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7.Operation interface
Outlines of this chapter
This section introduces the display, operation, buttons and LED indicator lights
of SOFAR 15~24KTLX-G3 Inverter.
7.1. Operation and Display Panel
Buttons and Indicator lights
Butt
Butt
Butt
ButtButton
on
on
onon:
” Short press UP button = go up^
” Long press UP button = exit menu or current interface^
Short press DOWN button = go downv
” Long press DOWN button = enter menu or current interfacev
Indi
Indi
Indi
IndiIndicator
cator
cator
catorcator Light
Light
Light
LightLights:
s:
s:
s:s:
“GFI” Red light ON = GFCI faulty
“Normal” Green light flashing = counting down or checking
“Normal” Green light ON = Normal
Alarm” Red light ON= recoverable or unrecoverable faulty
Up button
Down button
GFCI lamp
Normal lamp
Alarm lamp
LCD screen
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Inverter working status, grid voltage and frequency
Inverter working status, USB status
Inverter faulty alarm
When control board successfully connected with communication board, the
LCD display the current state of the inverterdisplay as shown in the figure below.
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Inverter states includes: wait, check, normal and fault
Wait: Inverter is waiting to Check State when reconnect the system. In this
state, grid voltage value is between the max and min limits and so on; If not,
Inverter will go to Fault State or Permanent State.
Check: Inverter is checking isolation resistor, relays, and other safety
requirements. It also does self-test to ensure inverter software and hardware are
well functional. Inverter will go to Fault State or Permanent State if any error or
fault occurs.
Normal
Inverter enter to Normal Stateit is feeding power to the grid;
inverter will go to Fault State or Permanent state if any error or fault occurs.
Fault: Fault State: Inverter has encountered recoverable error. It should
recover if the errors disappear. If Fault State continues; please check the inverter
according error code.
When the control board and communication board connection fail, the LCD
display interface as shown in the figure below.
7.3. Main Interface
Long press the down button under standard interface to enter into main interface,
Main interface including below information:
Normal
---------Long press DOWN button
1.Enter Setting
2.Event List
3.SystemInfo
4.Display Time
5.Software Update
SOFAR 15~24KTLX-G3 User manual
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(A)Enter setting Interface as below
1.Enter Setting
--------Long press DOWN button
1.Set time
8.Set Input mode
2.Clear Energy
9.Set Language
3.Clear Events
10.MPPT Scan
4.Country Code
11.Logic Interface
5.On-Off Control
12.IV Curve Scan
6.Set Energy
13.Autotest Fast
7.Set Address
14.Autotest STD
Long press the button to Enter the main interface of "1. Enter Setting" and
long press to enter the setting menu. You can select the content you want to set by
short pressing the button.
Note1: Some settings need to enter the password (the default password is
0001), when entering the password, short press to change the number, long press
to confirm the current number, and long press after entering the correct password.
If "password error, try again" appears, you will need to re-enter the correct
password.
1. Set Time
Set the system time for the inverter.
2. Clear Energy
Clean the inverter of the total power generation.
3. Clear Events
Clean up the historical events recorded in the inverter.
4. Country Code
Long press button, enter interface, save the specific file into USB and insert USB
into inverter communication port
5. On-Off Control
Inverter on-off local control.
6. Set Energy
Set the total power generation. You can modify the total power generation
through this option.
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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7. Set address
Set the address (when you need to monitor multiple inverters
simultaneously)Default 01.
8. Set Input mode
SOFAR 15~24KTLX-G3 has 2 MPPT circuit, each MPPT circuit can work
interdependently, or divided into parallel mode. User can change the setting
according to the configuration
9. Set Language
Set the inverter display language.
10. MPPT Scan
Shadow scanning, when the component is blocked or abnormal, causing
multiple power peaks, by enabling this function, the peak point of maximum power
can be tracked.
11. Logic interface
Enable or disable logical interfaces. It is use for below standard Australia
(AS4777), Europe General (50549), German (4105)
12. IV Curve Scan
Shadow scanning, when the component is blocked or abnormal, causing
multiple power peaks, by enabling this function, the peak point of maximum power
can be tracked.
13. Autotest Fast
13.Autotest Fast
OK
Start Autotest
Long press the“ ”
to start
Testing 59.S1...
Wait
Test 59.S1 OK!
Wait
Testing 59.S2...
Wait
Test 59.S2 OK!
Wait
Testing 27.S1...
Wait
Test 27.S1 OK!
Wait
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Testing 27.S2...
Wait
Test 27.S2 OK!
Wait
Testing 81>S1...
Wait
Test 81>S1 OK!
Wait
Testing 81>S2…
Wait
Test 81>S2 OK!
Wait
Testing 81<S1...
Wait
Test 81<S1 OK!
Wait
Testing 81<S2...
Wait
Test 81<S2 OK!
Long press the
Auto Test OK!
Short press the“ ”
59.S1 threshold 253V 900ms
Short press the
59.S1: 228V 902ms
Short press the“ ”
59.S2 threshold 264.5V
200ms
Short press the“ ”
59.S2: 229V 204ms
Short press the
27.S1 threshold 195.5V
1500ms
Short press the“ ”
27.S1: 228V 1508ms
Short press the
27.S2 threshold 34.5V 200ms
Short press the“ ”
27.S2: 227V 205ms
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Short press the“ ”
81>.S1 threshold 50.5Hz
100ms
Short press the“ ”
81>.S1 49.9Hz 103ms
Short press the
81>.S2 threshold 51.5Hz
100ms
Short press the
81>.S2 49.9Hz 107ms
Short press the“ ”
81<.S1 threshold 49.5Hz
100ms
Short press the“ ”
81<.S1 50.0Hz 105ms
Short press the“ ”
81<.S2 threshold 47.5Hz
100ms
Short press the“ ”
81<.S2 50.1Hz 107ms
14. Autotest STD
14.Autotest STD
Long press the “ ”
The test procedure is same as Autotest Fast, but its much more time
consuming.
BEvent List
Event List is used to display the real-time event records, including the total number
of events and each specific ID No. and happening time. User can enter Event List
interface through main interface to check details of real-time event records, Event
will be listed by the happening time, and recent events will be listed in the front.
Please refer to below picture. Long press the button and short press the button to
turn the page in standard interface, then enter into “2. Event List interface.
2. Event List
1. Current event
2. History event
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Fault information
001 ID04 06150825
(Display the event sequence number, event ID
number, and event occurrence time)
(A) “SystemInfo” Interface as below
3.SystemInfo
------Long press DOWN button
1.Inverter Type
2.Serial Number
3.Soft Version
4.Hard Version
5.Country
6.Modbus Address
7.Input Mode
The user enters the main menu by long pressing the DOWN button, short
press and turns the page to select menu contents, then long press the button to
enter "3. SystemInfo". Turning the page down can select the system information to
view.
(B) Display Time
Long press the button and short press the button to turn the page in the
standard user interface to enter into “4. Display Time, then long press the button
to display the current system time.
(C) Software Update
User can update software by USB flash disk, SOFARSOLAR will provide the new
update software called firmware for user if it is necessary, the user needs to copy
the upgrade file to the USB flash disk.
7.4. Updating Inverter Software
SOFAR 15~24KTLX-G3 inverter offer software upgrade via USB flash drive
to maximize inverter performance and avoid inverter operation error caused by
software bugs.
Step 1turn off AC circuit breaker and DC switch, remove the communication
board cover as below figure. If the RS485 line has been connected, please release
the waterproof nut first and make sure the communication line is no longer the
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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force. Then remove the waterproof cover.
Figure 7-1 Remove communication broad cover
Step 2Insert USB into computer
Step 3
SOFARSOLAR service team will send the software code to user, after
user receive the file, please decompressing file and cover the original file in USB
flash drive.
Step 4
Insert USB flash disk into the USB port of inverter.
Step 5
Then turn on DC switch, srceen show recoverable fault(as AC
circuit breaker still open, inverter cannot detect grid power, so it may show
recoverable fault)
Step 6
Long press DOWNbutton to enter the menu, then short press
DOWNbutton to find "5. Software Updatein the LCD display, long press
DOWNbutton to enter input password interface.
Step 7
Input the password, if password is correct, and then begin the update
process.
Step 8
System update main DSP, slave DSP and ARM in turns. If main DSP
update success, the LCD will display Update DSP1 Success", otherwise display
"Update DSP1 Fail"; If slave DSP update success, the LCD will display"Update DSP2
Success", otherwise display "UpdateDSP2 Fail".
Step 9
After the update is completed, turn off the DC breaker, wait for the
LCD screen extinguish, then recover the communication waterproof and then turn
on the DC breaker and AC breaker again, the inverter will enter the running state.
User can check the current software version in Systemlnfo>>3.SoftVersion.
Note: If screen shows Communication fail,Update DSP1 fail,
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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8.Trouble shooting and
maintenance
8.1. Troubleshooting
This section describes the potential errors for this product. Please read carefully
for the following tips when doing the troubleshooting:
1) Check the warning message or faulty codes on the inverter information
panel
2) If not any error code display on the panel, please check the following
lists:
Is inverter be installed in a clean, dry, ventilated environment?
Is the DC switch turn off?
Are the cable cross section area and length meet the requirement?
Are the input and output connection and wiring in good condition?
Are the configuration settings correctly for the particular installation?
This section contains the potential errors, resolution steps, and provide users
with troubleshooting methods and tips
The process to check the event list can refers to Manual Chapter 7.3 (B)
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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List 8-1 Even list
Even
List ID
Event List
Name
Even List
Description
Even Reason & Solution
ID01
GridOVP
The power grid
voltage is too
high
If the alarm occurs occasionally, the
possible cause is that the electric grid is
abnormal occasionally. inverter
automatically returns to normal
operating status when the electric grid’s
back to normal.
ID02
GridUVP
The power grid
voltage is too
low
If the alarm occurs frequently, check
whether the grid voltage/frequency is
within the acceptable range. If no,
contact technical support. If yes, check
the AC circuit breaker and AC wiring of
the inverter.
ID03
GridOFP
The power grid
frequency is too
high
If the grid voltage/frequency is within
the acceptable range and AC wiring is
correct, while the alarm occurs
repeatedly, contact technical support to
change the grid over-voltage,
under-voltage, over frequency,
under-frequency protection points after
obtaining approval from the local
electrical grid operator.
ID04
GridUFP
The power grid
frequency is too
low
ID05
GFCIFault
GFCI Fault
If the fault occurs occasionally, the
possible cause is that the external
circuits are abnormal occasionally.
inverter automatically returns to normal
operating status after the fault is
rectified. If the fault occurs frequently
and lasts a long time, check whether
the insulation resistance between the
PV array and earth(ground) is too low,
then check the insulation conditions of
PV cable.
ID06
OVRT
OVRT faulty
There are internal faults of inverter,
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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turn OFF the DC switch , wait for 5“ ”
minutes, then turn ON the DC
switch . Check whether the fault is
rectified. If no, please contact technical
support.
ID07
LVRT
LVRT faulty
ID08
IslandFault
Islanding faulty
ID09
GridOVPInsta
nt1
Grid
instantaneous
voltage too high
1
ID10
GridOVPInsta
nt2
Grid
instantaneous
voltage too high
2
ID11
VGridLineFaul
t
Grid Line
voltage Faulty
ID12
InvOVP
Inverter
overvolatge
ID17
HwADFaultIGr
id
The grid current
sampling error
ID18
HwADFaultDC
I
The DCI
sampling error
ID19
HwADFaultVG
rid(DC)
Grid voltage
sampling faulty
( )DC side
ID20
HwADFaultVG
rid(AC)
Grid voltage
sampling faulty
( )AC side
ID21
GFCIDeviceFa
ult(DC)
Current leakage
sampling DC
side
There are internal faults of inverter,
turn OFF the DC switch , wait for 5“ ”
minutes, then turn ON the DC
switch . Check whether the fault is
rectified. If no, please contact technical
support.
ID22
GFCIDeviceFa
ult(AC)
Current leakage
sampling AC
side
ID23
HwADFaultIdc
Branch
Current Branch
sampling
faulty
ID24
HwADFaultIdc
DC input current
sampling faulty
ID29
ConsistentFau
The GFCI
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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ID44
PvConfigError
Input mode
incorrect
Please check the wiring of PV string,
whether each PV input is independent.
If the use method is not ruled out,
please contact the new energy
customer service of Capital Airlines.
ID45
CT Disconnect
CT Fault
Please check the wiring of input, output
and communication according to the
user's manual. If the use method is not
ruled out, please contact the new
energy customer service of Capital
Airlines.
ID46
ReversalConn
ection
Input reverse
connection
error
ID47
Reserved
Reserved
ID48
SNTypeFault
SN doesn’t
match Type
It is internal fault of inverter.
ID49
Reserved
Reserved
Ensure the installation position and
installation method meet the
requirements of this user manual.
Check whether the ambient
temperature of the installation position
exceeds the upper limit. If yes, improve
ventilation to decrease the
temperature.
Check whether the inverter has dust
and dust, whether there are foreign
matters blocking the fan at the air inlet.
If so, please improve the ventilation and
heat dissipation of the environment. It
is recommended that the inverter
should be cleaned once every half a
year.
ID50
TempFault_H
eatSink1
Heat sink1
over-temperatu
re protection
ID51
Reserved
Reserved
ID52
Reserved
Reserved
ID53
Reserved
Reserved
ID54
Reserved
Reserved
ID55
Reserved
Reserved
ID57
TempFault_E
nv1
environment
temperature1
protection
ID58
Reserved
Reserved
ID59
TempFault_In
v1
Model 1
over-temperatu
re protection
ID60
Reserved
Reserved
ID61
Reserved
Reserved
ID65
VbusRmsUnb
alance
Unbalanced
RMS value of
bus voltage
There are internal faults of inverter,
turn OFF the “DC switch”, wait for 5
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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minutes, then turn ON the “DC switch”.
Check whether the fault is rectified. If
no, please contact technical support.
ID66
VbusInstantU
nbalance
Unbalanced
instantaneous
value of bus
voltage
ID67
BusUVP
Bus
undervoltage
during grid
connection
If the configuration of the PV array is
correct, could be the sun irradiation is
too low. Once sun irradiation back to
normal, inverter will work back normal
ID68
BusZVP
Bus voltage is
low
There are internal faults of inverter,
turn OFF the DC switch , wait for 5“ ”
minutes, then turn ON the DC
switch . Check whether the fault is
rectified. If no, please contact technical
support.
ID69
PVOVP
PV overvoltage
ID70
Reserved
Reserved
ID71
LLCBusOVP
LLCBUS
overvoltage
ID72
SwBusRmsOV
P
Inverter bus
voltage
overvoltage
software
ID73
SwBusInstant
OVP
Inverter bus
voltage
instantaneous
value
overvoltagesoft
ware
ID81
Reserved
Reserved
There are internal faults of inverter,
turn OFF the DC switch , wait for 5“ ”
minutes, then turn ON the DC
switch . Check whether the fault is
rectified. If no, please contact technical
support.
ID82
DciOCP
Dci overcuurent
faulty
ID83
SwOCPInstant
Output
instantaneous
current
protection
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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ID84
SwBuckBoost
OCP
BuckBoost
software
overcurrent
ID85
SwAcRmsOCP
Output RMS
current
protection
ID86
SwPvOCPInsta
nt
PV overcurrent
software
protection
ID87
IpvUnbalance
PV parallel
unbalance
ID88
IacUnbalance
Output current
unbalance
ID89
AFCIFault
Arc Fault
ID97
HwLLCBusOV
P
LLC hardware
overvoltage
ID98
HwBusOVP
Inverter bus
hardware
overvoltage
ID99
HwBuckBoost
OCP
BuckBoost
hardware
overcurrent
ID100
Reserved
Reserved
There are internal faults of inverter,
turn OFF the DC switch , wait for 5“ ”
minutes, then turn ON the DC
switch . Check whether the fault is
rectified. If no, please contact technical
support.
ID102
HwPVOCP
PV hardware
overcurrent
ID103
HwACOCP
AC output
hardware
overcurrent
ID110
Overload1
Overload
Protection 1
ID111
Overload2
Overload
Protection 2
ID112
Overload3
Overload
Protection 3
SOFAR 15~24KTLX-G3 User manual
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ID113
OverTempDer
ating
Overtemperatur
e derating
Ensure the installation position and
installation method meet the
requirements of this user manual.
Check whether the ambient
temperature of the installation position
exceeds the upper limit. If yes, improve
ventilation to decrease the
temperature.
Check whether the inverter has dust
and dust, whether there are foreign
matters blocking the fan at the air inlet.
If so, please improve the ventilation and
heat dissipation of the environment. It
is recommended that the inverter
should be cleaned once every half a
year.
ID114
FreqDerating
Frequency
derating
If it occurs frequently, please check
whether the grid voltage and grid
frequency are within the allowable
range of the inverter; if not, please
contact the customer service of
SOFARSOLAR; if yes, please check
whether the connection between the
circuit breaker at the AC side and the
output cable is normal; if the grid
voltage and grid frequency are within
the allowable range of the inverter, and
the AC side wiring is confirmed to be
correct, the alarm still appears
frequently With the approval of the
local power operator, please contact
the customer service of new energy of
Capital Airlines to modify the protection
points of over / under voltage and over
/ under frequency of inverter grid.
ID115
FreqLoading
Frequency
loading
ID116
VoltDerating
Voltage derating
ID117
VoltLoading
Volatge loading
ID124
Reserved
Reserved
There are internal faults of inverter,
turn OFF the “DC switch”, wait for 5
ID125
Reserved
Reserved
SOFAR 15~24KTLX-G3 User manual
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ID156
SoftVerError
Inconsistent
software
version
ID157
Reserved
Reserved
ID158
Reserved
Reserved
ID161
ForceShutdo
wn
ForceShutdown
Remote control enables. If it is not
controlled by yourself, please
disconnect the DC switch of the
inverter, wait for 5 minutes, and then
turn on the DC switch. Observe whether
the fault has been eliminated after the
inverter is restarted. If not, please
contact the customer service of
SOFARSOLAR.
ID162
RemoteShutd
own
RemoteShutdo
wn
ID163
Drms0Shutdo
wn
Drms0 shunt
down
ID165
RemoteDerati
ng
RemoteDerating
Inverter shows ID83 when remote
derating. If no one operate this
function, please check the connection
(I/O) according to chapter 4.5
ID166
LogicInterface
Derating
Logical interface
derating
ID167
AlarmAntiRefl
uxing
Anti Refluxing
derating
ID169
FanFault1
Fan 1 Alarm
Check whether the inverter has dust
and dust, whether there are foreign
matters blocking the fan at the air inlet.
If so, please improve the ventilation and
heat dissipation of the environment. It
is recommended that the inverter
should be cleaned once every half a
year.
ID170
FanFault2
Fan 2 Alarm
ID171
FanFault3
Fan 3 Alarm
ID172
FanFault4
Fan 4 Alarm
ID173
FanFault5
Fan 5 Alarm
ID174
FanFault6
Fan 6 Alarm
ID177
Reserved
Reserved
ID178
Reserved
Reserved
ID179
Reserved
Reserved
ID180
Reserved
Reserved
ID181
Reserved
Reserved
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
- 62 -
ID182
Reserved
Reserved
ID193-
ID224
StringFuse_Fa
ult0-31
String fuse open
circuit alarm
There are internal faults of inverter,
turn OFF the “DC switch”, wait for 5
minutes, then turn ON the “DC switch”.
Check whether the fault is rectified. If
no, please contact technical support.
ID225-
ID240
Reserved
Reserved
/
Note: the above table is our general fault ID list, all fault IDs of this inverter can be
found in the above table.
8.2. Maintenance
Inverters generally do not need any daily or routine maintenance. But ensure
heat sink should not be blocked by dust, dirt or any other items. Before the
cleaning, make sure that the DC SWITCH is turned OFF and the circuit breaker
between inverter and electrical grid is turned OFF. Wait at least for 5 minutes
before the Cleaning.
Inverter cleaning
Please clean the inverter with an air blower, a dry & soft cloth or a soft bristle
brush. Do NOT clean the inverter with water, corrosive chemicals, detergent, etc.
Heat sink cleaning
For the long-term proper operation of inverters, ensure there is enough space
around the heat sink for ventilation, check the heat sink for blockage (dust, snow,
etc.) and clean them if they exist. Please clean the heat sink with an air blower, a
dry & soft cloth or a soft bristle brush. Do NOT clean the heat sink with water,
corrosive chemicals, detergent, etc.
Fan cleaning
For inverter SOFAR 15~24KTLX-G3 with fans, please check if inverter have
abnormal sound when inverter is operating. Check if fan on cracks, replace a new
fan when necessary. Refers to below section.
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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Nominal grid
voltage
3/N/PE,220V/380Vac,230V/400Vac
Grid voltage
range
310Vac-480Vac (According to local standard)
Nominal
frequency
50 / 60Hz
Grid frequency
range
45Hz-55Hz/54Hz-66Hz (According to local standard)
Active power
adjustable range
0~100%
THDi
<3%
Power factor
1 default (adjustable +/-0.8)
Performance
Max efficiency
98.60%
98.60%
98.60%
98.60%
98.60%
98.60%
98.60%
98.60%
European
weighted
efficiency
98.20%
98.20%
98.20%
98.20%
98.20%
98.20%
98.20%
98.20%
Self-consumption
at night
<1W
MPPT efficiency
>99.9%
Protection
DC reverse
polarity
protection
Yes
Anti-islanding
protection
Yes
Leakage current
protection
Yes
Ground fault
monitoring
Yes
PV-array string
fault monitoring
Yes
Anti-reverse
power controller
Yes
DC switch
Yes
AFCI
Optional
Input/ output
SPD
PV: type II standard, AC: type II standard
Maximum
0A
SOFAR 15~24KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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inverter
back-feed current
to the array
Output inrush
current and
duration
0.8A/2us
Maximum output
fault current and
duration
200A/1us
Maximum output
overcurrent
protection
45A
Communication
Power
management unit
According to certification and request
Communication
RS485/USB/ Bluetooth, Optional: WIFI /Ethernet
Operation data
storage
25 years
General Data
Ambient
temperature
range
-30~+60
Topology
Transformer-less
Degree of
protection
IP65
Allowable relative
humidity range
0~100%
Max. operating
altitude
4000m
Noise
40dB
40dB
40dB
40dB
40dB
40dB
40dB
40dB
Weight
20kg
20kg
22kg
22kg
22kg
23kg
23kg
23kg
Cooling
Fan
Dimension
520*430*189mm
Display
LCD & Bluetooth +APP
Warranty
5 years/ 7 years/ 10 years
Standard
EMC
EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4
Safety standard
IEC62109-1/2, IEC62116, IEC61727, IEC61683, IEC60068(1,2,14,30)


Produkt Specifikationer

Mærke: Sofar Solar
Kategori: Batterioplader
Model: 17KTLX-G3

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