Senergy SE 1KTL-S1, SE 2K5TL-S1, SE 3K6TL-S1, SE 3KTL-S1 User Manual

1K/2K/2K5/3K/3K6-S1
3K/3K6/4K/4K6/5K/6K-D1
User Manual
（Ver. 00)
Shenzhen Senergy Technology Co., Ltd.
1
Contents
Forward ........................................................................................................................................... 4
1. Safety Precautions ....................................................................................................................... 6
1.1 Personnel Safety .....................................................................................................................6
1.2 The PV Inverter Protection.....................................................................................................6
1.3 Installation Safety ...................................................................................................................7
1.4 Electrical Connections............................................................................................................7
1.5 Operating and Commissioning ...............................................................................................7
1.6 Maintenance ...........................................................................................................................8
1.7 Additional Information ...........................................................................................................8
2. Product Overview ........................................................................................................................ 9
2.1 Functional Models ..................................................................................................................9
2.2 Network Application ............................................................................................................10
2.3 Outline and Dimensions .......................................................................................................10
2.3.1 Outline .......................................................................................................................... 10
2.3.2 Dimensions ................................................................................................................... 12
2.4 Working Process...................................................................................................................13
2.4.1 Basic principle Description .......................................................................................... 13
2.4.2 Circuit Diagrams .......................................................................................................... 13
2.4.3 Working Modes ............................................................................................................ 14
3. Storage ....................................................................................................................................... 15
4. Installation ................................................................................................................................. 15
4.1 Checking the Outer Packing .................................................................................................16
4.3 Identify the PV inverter ........................................................................................................17
4.3.1 Nameplate ..................................................................................................................... 17
4.3.2 Compliance and Safety Symbols .................................................................................. 17
4.4 Determining the installation position ...................................................................................18
4.4.1 Basic requirements ....................................................................................................... 18
4.4.2 Installation Environment Requirements ....................................................................... 19
4.4.3 Carrier Requirements.................................................................................................... 19
4.4.4 Installation Space Requirements .................................................................................. 20
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4.5 Installing a Rear Panel ..........................................................................................................23
4.6 Installing the Inverter ...........................................................................................................26
5. Electrical Connections ............................................................................................................... 27
5.1 Connecting External Protection Ground (PGND) Cables ....................................................27
5.1.1 Preparation.................................................................................................................... 27
5.1.2 Procedure of grounding ................................................................................................ 28
5.2 Connecting AC Power Cables ..............................................................................................29
5.2.1 Preparation.................................................................................................................... 29
5.2.2 Procedure of Connecting AC cables ............................................................................. 30
5.3 Connecting the PV Strings ...................................................................................................31
5.3.1 Preparation.................................................................................................................... 32
5.3.2 Connecting DC input power cables Procedure ............................................................. 34
5.4 Connecting Communications Cables ...................................................................................37
5.4.1 WIFI, GPRS and RS485 communications ................................................................... 37
5.4.2 Bluetooth Communication............................................................................................ 38
5.5 Installation Verification ........................................................................................................39
6. Power on & Power off ............................................................................................................... 39
6.1 Powering On the inverter .....................................................................................................40
6.2 Powering Off the inverter .....................................................................................................40
7. User Interface ............................................................................................................................ 40
7.1 Checking inverter operation status .......................................................................................40
7.2 Viewing & setting data of inverter .......................................................................................41
7.3 Setting Standard Parameters .................................................................................................41
8. Maintenance .............................................................................................................................. 42
8.1 Routine Maintenance............................................................................................................42
8.2 Troubleshooting ...................................................................................................................43
8.3 Removing the Inverter ..........................................................................................................45
9. Quality Guarantee...................................................................................................................... 45
9.1 Quality terms ........................................................................................................................45
9.2 Liability waiver ....................................................................................................................46
10. The Inverter Disposal .............................................................................................................. 46
11. Technical Specifications .......................................................................................................... 47
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Forward
Dear User,
Thank you so much for your choosing the 1K/2K/2K5/3K/3K6-S1 PV Inverter Single
MPPT Route Input and 3K/3K6/4K/4K6/5K/6K-D1 PV Inverter Double MPPT Routes
Input, the latest generation of grid-tied PV Strings inverter (hereinafter referred to as the
inverter) designed and developed by Senergy!
This user manual describes the inverter in terms of its installation, electrical connections,
operation, commissioning, maintenance, and troubleshooting. Please read through the
manual carefully before installing and using the inverter, and keep the manual well for
future reference.
Application Model
Grid-tied PV string inverter
1K/2K/2K5/3K/3K6-S1 PV Inverter Single MPPT Route Input
3K/3K6/4K/4K6/5K/6K-D1 PV Inverter Double MPPT Routes Input
Intended Audience
This user manual is intended for photovoltaic (PV) inverter operating personnel and
qualified electrical technicians.
Notes:
This user manual is subject to continual update and revision (specific please in kind
prevail); the latest version of user manual and other more information about the product
are available from http://www.senergytec.com, and/or by consulting your dealer.
Symbol Conventions
4
Safety symbols used in this manual, which highlight potential safety risks and important
safety information, are listed as follows:
Symbol
Description
Indicates an imminently hazardous situation which, if not correctly
DANGER
followed, will result in serious injury or death.
Indicates a potentially hazardous situation which, if not correctly
WARNING
followed, could result in serious injury or death.
Indicates a potentially hazardous situation which, if not correctly
CAUTION
followed, could result in moderate or minor injury.
Indicates a potentially hazardous situation which, if not correctly
NOTICE
followed, could result in equipment failure to run, or property damage.
Calls attention to important information, best practices and tips:
Note
supplement additional safety instructions for your better use of the PV
inverter to reduce the waste of your resource.
Refer to documentation (Remind operators to refer to the documentation
shipped with the inverter).
This inverter must be installed by the '' Australia local agent professional person who
authorized by manufacturer''.
This professional person should familiar with Australia relevant electrical regulations
to ensure all installation comply with Electromechanical regulations.
5
1. Safety Precautions
Before beginning your journey, please read these safety precautions in the user manual
carefully.
1.1 Personnel Safety
a. The PV inverter must be installed, electronically connected, operated and maintained
through specially trained technician;
b. The qualified technician must be familiar with the safety regulations of electrical
system, working process of PV power generation system, and standards of local power
grid;
c. The technician must read through this user manual carefully and master it before any
operation.
1.2 The PV Inverter Protection
As soon as receiving the PV inverter, please check if it is damaged during
its transportation. If yes, please contact Senergy or your dealer
NOTICE
immediately.
a. Do not tamper with any warning signs on the inverter enclosure because these signs
contain important information about safe operation.
b. Do not remove or damage the nameplate on the inverter enclosure because it contains
important product information.
c. Do not remove the anti-dismantle label on the inverter enclosure because it is the basis
for product warranty.
6
1.3 Installation Safety
Please read the user manual carefully before installing the PV inverter;
warranty or liability will be void from Senergy if damage is caused by
installation faults.
NOTICE
a. Ensure there is no electronical connections around ports of the PV inverter before
installing;
b. Adequate ventilation must be provided for inverter installation location. Mount the
inverter in vertical direction, and ensure that no object is put on the heat sink affecting the
cooling. (For details, refer to Chapter 4 Installation)
1.4 Electrical Connections
Before installing the inverter, check all electrical ports to ensure no
damage and no short circuit. Otherwise personal casualty and/or fire
DANGER
will occur.
a. Input terminals of the PV inverter apply only to PV String input; do not connect any
other DC source to the input terminals.
b. Before connecting PV modules, ensure that is its voltage is within the safe range; when
exposed to any sunlight, PV modules can generate high voltage.
c. All electrical connections must meet the electrical standards of the country or region.
d. Cables used in electrical connections must be well fixed, good insulation, and with
appropriate specification.
1.5 Operating and Commissioning
While PV String operating, high voltage can lead to an electrical shock
hazard, and even cause personal casualties. Therefore, operate the PV
DANGER
inverter strictly according to the safety precautions in the user manual.
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a. Before getting the permission of electrical power sector in the country/ region, the gridtied PV inverter cannot generate power.
b. Follow the procedures of commissioning described in the user manual when
commissioning the PV inverter.
c. Do not touch any other parts’ surface except the DC switch when the PV inverter is
operating; its partial parts will be extremely hot and can cause burns.
1.6 Maintenance
Power OFF all electrical terminals before PV inverter maintenance; strictly
comply with the safety precautions in this document when operating the
DANGER
inverter.
a. For personal safety, maintenance personnel must wear appropriate personal protective
equipment (like insulation gloves and protective shoes) for the inverter maintenance.
b. Place temporary warning signs or erect fences to prevent unauthorized access to the
maintenance site.
c. Follow the procedures of maintenance stipulated in the manual strictly.
d. Check the relevant safety and performance of the inverter; rectify any faults that may
compromise the inverter security performance before restarting the inverter.
1.7 Additional Information
To avoid any other unforeseen risk, contact Senergy immediately, if there is
NOTICE
any issue found during operation.
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2. Product Overview
This chapter introduces inverter and describes its functional model, network application,
appearance, dimensions, working process etc.
2.1 Functional Models
Function
The inverter is a single-phase grid-tied PV string inverter (transformer less) that converts
the DC power generated by PV strings into AC power and feeds the power into the power
grid.
The inverter is transformerless inverter. Add an isolation transformer before
grounding the positive/ negative terminal of PV modules (like Thin Film
WARNING
module) for operation.
Do not connect PV modules in parallel to several PV inverters for operation.
WARNING
Models
Figure 2.1 shows a model number of the 1K/2K/2.5K/3K/3.6K/3K/3.6K/4K/4.6K/5K/6K,
using 3K as an example.
Figure 2.1 Model number description
9
2.2 Network Application
Grid-tied PV power systems
The inverter applies to grid-tied PV power systems for outdoor power stations. Typically,
a grid-tied PV power system consists of PV modules, grid-tied inverters (inverter), AC
distribution units (ACDUs), and low-voltage power grid, as shown in Figure 2.2.
Figure 2.2 Grid-tied PV power systems
2.3 Outline and Dimensions
2.3.1 Outline
Figures 2.3 to 2.6 show the outline of 1K/2K/2.5K/3K/3.6K/ 3K/3.6K/4K/4.6K/5K/6K
as follows:
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Figure 2.3 The Front view of 1K/2K/2.5K/3K/3.6K/ 3K/3.6K/4K/4.6K/5K/6K
The amplification effect of LED indicator area is shown in Figure 2.4.
Figure 2.4 The amplification effect of LED indicator
Figure 2.5 The Rear view of 1K/2K/2.5K/3K/3.6K/ 3K/3.6K/4K/4.6K/5K/6K
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Figure 2.6 The Bottom view of 1K/2K/2.5K/3K/3.6K/ 3K/3.6K/4K/4.6K/5K/6K
2.3.2 Dimensions
Figures 2.7 & 2.8 show the dimensions of 1K/2K/2.5K/3K/3.6K/
3K/3.6K/4K/4.6K/5K/6K as follows:
Figure 2.7 The dimension of 1K/2K/2.5K/3K/3.6K
12
Figure 2.8 The dimensions of 3K/3.6K/4K/4.6K/5K/6K
2.4 Working Process
2.4.1 Basic principle Description
The 3K/3.6K/4K/4.6K/5K/6K receives inputs from two strings of PV panel
(1K/2K/2.5K/3K/3.6K receives inputs from only one sting of PV panel). Then the inputs
are grouped into two independent MPPT routes inside the inverter to track the maximum
power point of the PV panel. The two MPPT power is then converted into DC Bus, then
the DC power is converted to AC power through an inverter circuit. Finally the AC
power is fed to the Power grid. EMI filer is used on both the DC and AC sides to reduce
the electromagnetic inference; Surge protection is supported on AC side.
2.4.2 Circuit Diagrams
Figure 2.9 shows the circuit diagram for the 1K/2K/2.5K/3K/3.6K.
Figure 2.9 shows the circuit diagram for the 1K/2K/2.5K/3K/3.6K.
13
Figure 2.10 shows the circuit diagram for the 3K/3.6K/4K/4.6K/5K/6K.
2.4.3 Working Modes
Three working modes of 1K/2K/2.5K/3K/3.6K/3K/3.6K/4K/4.6K/5K/6K are shown as
follows: standby, operating, and shutdown. Table 2.1 shows the conditions for the
1K/2K/3K/4K/5K/6K to switch between working modes.
Table 2.1 1K/2K/2.5K/3K/3.6K/3K/3.6K/4K/4.6K/5K/6K Working modes description
Modes
Description
Standby
The PV inverter enters the standby mode when
>the input voltage of PV Strings can enable auxiliary power supply to run, but
cannot meet the inverter operation requirements.
>the input voltage of PV Strings can meet the inverter operation requirements, but
cannot meet its minimum power requirements.
Operating
When the PV inverter is grid-tied and generates electricity, it
> tracks the maximum power point to maximize the PV String output.
> converts DC power from PV strings into AC power and feeds the power to the
power grid.
> enters the shutdown mode if detecting a fault or a shutdown command, and enters
the standby mode if detecting that the PV string output power does not meet the
requirements for grid-tied electricity generation.
Shutdown
The PV inverter switches from standby or operating mode to shutdown mode if
14
detecting a fault or a shutdown command.
The inverter switches from shutdown mode to standby mode if receiving a
Startup command or detecting that a fault is rectified.
3. Storage
This chapter describes inverter storage requirements.
The following storage instructions apply if the PV inverter will not be deployed
immediately:
>Do not unpack the inverter (put desiccant in the original box if the PV inverter is
unpacked).
>Store the PV inverter at a temperature range of -40°C to +70°C and with the relative
humidity of 0% to 100% (no condensing).
>The PV inverter should be stored in a clean and dry place and be protected from dust
and water vapor corrosion.
> A maximum of eight layers of inverters can be stacked.
> Do not position the inverter at a front tilt, excessive back tilt, or side tilt, or upside
down.
> Conduct periodic inspection during storage. Replace the packing materials immediately
if any rodent bites are found.
>Ensure that qualified personnel inspect and test the inverter before use if it has been
stored for a long time.
4. Installation
Do not install the PV inverter on flammable building materials.
DANGER
Do not install the inverter in an area that stores flammable or explosive
materials.
Do not install the PV inverter in a place where personnel are likely to
CAUTION
come into contact with its enclosure and heat sinks to avoid electrical
shock/ burn.
15
4.1 Checking the Outer Packing
>When receiving the goods, check that the packing materials are intact.
>After unpacking, check that the deliverables are complete, intact, and consistent with
your order list.
>Examine the PV inverter and its fittings for damage such as scraps and cracks.
If any such damage described above is found, contact the dealer immediately.
NOTICE
4.2 Moving 1K/2K/2.5K/3K/3.6K/ 3K/3.6K/4K/4.6K/5K/6K
16
After checking the outer packing intact and complete, move the PV inverter to the
designated installation position horizontally. Hold the handles on both sides of the 3K/
5K, as shown in Figure 4.1.
Figure 4.1 Moving the inverter
>Do not place the PV inverter with its wiring terminals contacting the floor
because the power ports and signal ports at the bottom of the device are not
CAUTION
designed to support the weight of the inverter.
>When placing the inverter on the floor horizontally, put foam or paper under
to protect its enclosure.
4.3 Identify the PV inverter
4.3.1 Nameplate
After moving the PV inverter from packing box, identify it by reading its nameplate labeled on
the side. The nameplate contains important product information: the model information,
communications/ technical specifications, and compliance
4.3.2 Compliance and Safety Symbols
17
Safety symbol
description
Electrical shock!
There are residual voltages in the PV inverter. It needs 5 minutes to
finish discharge.
The PV inverter must not be touched when in operation. Its enclosure
and heat sinks are extremely hot.
Electrical shock! The part charged. Only qualified and trained electrical
technicians are allowed to perform operations on the inverter.
Do not dispose the PV inverter with household garbage. Deal with the
inverter according to local regulations.
The PV inverter is compliant with CQC.
4.4 Determining the installation position
inverter applies to wall-mounting installation, as described below in detail.
4.4.1 Basic requirements
a. inverter is protected to IP65 and can be installed indoors or outdoors.
b. The installation method and position must be appropriate for the weight and
dimensions of inverter. For details, see Table 4.1.
Table 4.1 the weight and dimensions of 1K/2K/2.5K/3K/3.6K/3K/3.6K/4K/4.6K/5K/6K
Model
1K/2K/2.5K/3K/3.6K
3K/3.6K/4K/4.6K/5K/6K
Weight
9 kg
13 kg
Size (h*w*d)
285 mm *336 mm *125mm
335mm*426mm*125mm
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c. Do not install the inverter in a place where personnel are likely to come into contact
with its enclosure and heat sinks because these parts are extremely hot during operation.
d. Do not install the inverter in an area that stores flammable or explosive materials
4.4.2 Installation Environment Requirements
a. The ambient temperature must be below 50°C which ensures optimal operation of the
inverter and extends its service life.
b. The inverter must be installed in a well ventilated environment to ensure good heat
dissipation.
c. The inverter must be free from direct exposure to sunlight, rain, and snow to extend its
service life. It is recommended that the inverter be installed in a sheltered place. If no
shelter is available, build an awning, as shown in Figure 4.2.
Figure 4.2 Installation in a sheltered place (unit: mm)
4.4.3 Carrier Requirements
a. The carrier where the inverter is installed must be fire-proof. Do not install inverter on
flammable building materials.
b. The wall must be solid enough to bear the weight of the inverter.
c. Do not install inverter on a wall made of gypsum boards or similar materials with weak sound
insulation to avoid noise disturbance in a residential area.
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4.4.4 Installation Space Requirements
a. It is recommended that the inverter be installed at eye level to facilitate operation and
maintenance.
b. Reserve enough clearance around the inverter to ensure sufficient space for installation and
heat dissipation, as shown in Figure 4.3.
Figure 4.3 Installation Space Requirements for inverter (unit: mm)
c. When installing multiple inverter, install them along the same line (as shown in Figure 4.4) if
sufficient space is available, and install them in triangle mode (as shown in Figure 4.5) or in
stacked mode (as shown in Figure 4.6) if no sufficient space is available. The installation modes
ensure sufficient space for installation and heat dissipation.
20
Figure 4.4 Installation along the same line (unit: mm)
Figure 4.5 Installation in triangle mode (unit: mm)
21
Figure 4.6 Installation in stacked mode (unit: mm)
The clearance between multiple inverters must be increased to ensure proper
NOTICE
heat dissipation when they are installed in a hot area.
4.1.5 Installation Mode Requirements
a. Install the inverter upright or at a maximum back tilt of 15 degrees to facilitate heat
dissipation, as shown in Figures 4.7 & 4.8.
Figures 4.7 The correct installation
22
Figures 4.8 The wrong installation
The wrong installation will lead to the inverter operation failure.
NOTICE
4.5 Installing a Rear Panel
Before installing the inverter, secure the shipped rear panel to a wall.
When installing the inverter, you need to prepare the expansion bolts to install
NOTE
the rear panel. Ф10x50 stainless expansion bolts are recommended.
Step 1 Move out the rear panel from the packing case.
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Step 2 Determine the positions for drilling holes (as shown in Figure 4.9) using the rear
panel.
Figure 4.9 Determine the positions for drilling holes（unit：mm)
Step 3 Level the hole positions using a level, and mark the hole positions using a marker
(as shown in Figure 4.10).
Figure 4.10 mark the hole positions using a marker
Step 4 Drill holes using a hammer drill and install expansion bolts, as shown in Figure
4.11.
Before drilling the hole on the wall, ensure no damage on the electric
DANGER
wire and /or water pipe inside the wall.
24
a. Drill a hole in a marked position to a depth of 60 mm using a hammer drill with a Ф10
mm bit.
b. Partially tighten an expansion bolt, vertically insert it into the hole, and knock the
expansion bolt completely into the hole using a rubber mallet.
Figure 4.11 Drilling a hole and installing expansion bolt
Step 5 Align the rear panel with the holes, insert expansion bolts into the holes through
the real panel, and tighten the expansion bolts to a torque of 2-2.5 N·m using a torque
wrench, as shown in Figure 4.12.
Figure 4.12 Installing the rear panel
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4.6 Installing the Inverter
Follow below procedures:
Step 1 The installer to hold the handle at both sides of the inverter and then lift and stand
the inverter.
Step 2 Mount the inverter on the rear panel and keep them aligned with each other, as
shown in Figure 4.13.
Step 3 Tighten the two hexagon screws at the both sides of the inverter to a torque of
1.2N.m and 3N·m respectively. Screw specs for 1K/2K/2.5K/3K/3.6K and
3K/3.6K/4K/4.6K/5K/6K are M4 and M6 respectively, as shown in Figure 4.13.
Figure 4.13 Securing the inverter
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5. Electrical Connections
Before performing any electrical connections, ensure that both DC and
DANGER
AC SWITCH are OFF. Otherwise, the high voltage can result in fatal
injury.
Grounding the PV Strings needs below prerequisites:
CAUTION
An isolation transformer must be installed on the AC side of each inverter;
Ensure that the neutral wire must be disconnected from the PGND cable.
One isolation transformer is with one PV inverter: do not install a single isolation transformer for
several inverters; otherwise, circulating current generated by the inverters will lead to operation
failure.
Set Isolation to Input Grounded, With TF on the SE Touch.
5.1 Connecting External Protection Ground (PGND) Cables
5.1.1 Preparation
The ground cable and OT terminals have been prepared.
〉Ground cable: Outdoor copper-core cables with a cross sectional area of 4 mm2 or
more are recommended.
〉OT terminal: OT16/4
27
Good grounding for the inverter helps resist the impact of surge voltage and
NOTE
improve the EMI performance. Connect the PGND cable before connecting
the AC power cables, DC power cables, and communications cables.
5.1.2 Procedure of grounding
Step 1 Remove an appropriate length of the insulation layer from the PGND cable using a
wire Stripper; the length is a little bit longer than that of OT terminal’s crimping end by
2mm~3mm, as shown in Figure 5.1.
Figure 5.1 Remove the insulation layer
Step 2 Insert the exposed core wires into the crimping area of the OT terminal and crimp
them using hydraulic pliers, as shown in Figure 5.2.
Figure 5.2 Crimping OT terminal (unit: mm)
Step 3 Remove the ground screws from the ground points, as shown in Figure 5.3.
Figure 5.3 Remove the ground screws
28
Step 4 Secure the PGND cable (done by step 1 & 2) using the ground screw and tighten
the screw to a torque of 1.2 N·m using a socket wrench, as shown in Figure 5.4.
Figure 5.4 Secure the PGND cable
5.2 Connecting AC Power Cables
5.2.1 Preparation
The AC power cable and AC terminals have been prepared.
〉AC power cable: Outdoor copper-core cables are recommended. Table 5.1 describes
the specifications.
Table 5.1 AC output cable specifications
Inverter Model
Cross-sectional Area
Cable Outer
(mm2)
Diameter (mm)
Cable
type
Range
Recommended
Range
Recommended
Value
1K/2K/2.5K/3K/3.6K
outdoor
4~6
4
4~6
6
Value
10~14
14
cable
3K/3.6K/4K/4.6K/5K/6K outdoor
29
cable
An independent circuit breaker must be installed on the AC side of each
NOTE
inverter to ensure that the inverter can be safely disconnected from the
power grid.
An independent circuit breaker must be installed on the AC side of each the
inverter; Do not stall one circuit breaker for multiple the inverter.
WARNING
Do not connect loads between the AC output terminals of the inverter and circuit
breaker.
WARNING
5.2.2 Procedure of Connecting AC cables
Step 1 Remove an appropriate length of the jacket and insulation layer from the AC
output cable using a wire stripper, as shown in Figure 5.5.
Figure 5.5 Stripped length for the inverter (unit: mm)
Step 2 Insert the exposed core wires through nut of AC terminal, sleeve in the
intermediate, L terminal of line wire, N terminal of neutral wire, into E terminal of Earth
Wire, tighten the screw. The required torque is 0.8 N·m. After fixing the cables, tighten
the nut and sleeve in the intermediate, as shown in Figure 5.6.
30
Figure 5.6 Connecting connector
After AC wiring, route the AC connector into the AC terminal of the inverter and double
check it, as shown in Figure 5.7.
Figure 5.7 Connecting AC Cinnector
5.3 Connecting the PV Strings
31
PV Strings connection needs below prerequisites; otherwise, an
DANGER
electrical shock can occur.
PV modules generate electric energy when exposed to sunlight and can create an electrical shock
hazard. Therefore, when connecting the PV modules, shield them with opaque cloth.
Before connecting DC input power cables, ensure that the voltage on the DC side is within the
safe range and that the DC SWITCH on the inverter is OFF. Otherwise, high voltage may result
in electric shock.
When the inverter is grid-tied, it is not allowed to maintain DC input power cables, such as
connect or disconnect a string or a module in a string. Only after the inverter enters in shutdown
mode, it is allowable for preceding DC input power cables maintenance.
Grounding the PV Strings needs below prerequisites; otherwise, a fire
WARNING
can occur.
PV modules connected in series in each PV string must be of the same specifications.
The maximum open-circuit voltage of each PV string must be always lower than or equal to 600
V DC.
The maximum short circuit current of each PV string must be always lower than or equal to 16 A.
The positive and negative terminals of PV modules must be connected to the positive and
negative DC input terminals of the inverter respectively.
During the installation of PV strings and inverter, the positive or negative terminals of
PV strings cannot be connected with short circuit.
5.3.1 Preparation
Route collecting for the installation of PV strings and inverter
Inverter model
Number of Input Route
1K/2K/2.5K/3K/3.6K
Connected to route 1
3K/3.6K/4K/4.6K/5K/6K
Connected to route 2
32
PV Strings DC input cable and connectors have been prepared; Table 5.2 lists the
recommended outdoor copper-core DC input cable specifications.
Table 5.2 Recommended DC input cable recommended specifications
Inverter model
Cable Type
Cross-sectional Area (mm2)
Cable Outer
Diameter
(mm
Range
Recommended
Range
Value
1K/2K/2.5K/3K/3.6K
Common PV
4~6
4
5~8
cables in
3K/3.6K/4K/4.6K/5K/6K the industry
(model:
PV1-F)
Positive and negative DC input connectors are used, as shown in Figure 5.8 and Figure
5.9.
Figure 5.8 Positive connector compositions
33
Figure 5.9 Negative connector compositions
Positive and negative metal terminals are packed with positive and negative
NOTE
connectors respectively. After unpacking, keep the positive and negative
ones separate to avoid confusion
5.3.2 Connecting DC input power cables Procedure
Step 1 Remove an appropriate length of the insulation layer from the positive and
negative power cables using a wire stripper, as shown in Figure 5.10.
Figure 5.10 Removing the insulation layer from DC cables (unit: mm)
Step 2 Insert the exposed area of the positive and negative power cables into the metal
terminals of the positive and negative connectors respectively and crimp them using a
crimping tool, as shown in Figure 5.11.
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Figure 5.11 Crimping metal terminals
Step 3 Insert the crimped positive and negative power cables into the corresponding
positive and negative connectors until a "click" sound is heard, as shown in Figure 5.12.
Figure 5.12 Connecting positive and negative connectors
Step 4 Tighten the locking nuts on the positive and negative connectors using a removal
wrench, as shown in Figure 5.13.
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Figure 5.13 Locking a nut
Step 5 Measure the voltage of every route Strings using a multimeter. Ensure that the
voltage of each string is within the specified range: 600VDC and check that the polarities
of the DC input power cables are correct, as shown in Figure 5.14.
Figure 5.14 Checking the voltage of every PV String
Step 6 Pull out the blue dustproof plugs from the ends of the DC input connectors. Insert
the positive and negative connectors into the corresponding connector terminals of the
3K/5K until a "click" sound is heard, as shown in Figure 5.15.
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Figure 5.15 Connecting PV Strings
Step 7 After connecting the PV strings, ensure that all connectors are in position by
checking for resistance when a slight pull is applied.
5.4 Connecting Communications Cables
You can use the following communications modes of inverter to implement
communication: WIFI、GPRS、RS485, and Bluetooth. These communications Mode
are described below in detail.
5.4.1 WIFI, GPRS and RS485 communications
1K/2K/3K/4K/5K/6K relay other communication board to monitor its data through
communication interface. And the equipment and communication functions are listed in
Table 5.3.
Table 5.3 Communication modules
Communicatio
Function description
n mode
SE WIFI
WIFI module implements communication with Cloud server through wireless
network to monitor PV inverter’s data status. For more details, refer to SE
WIFI Product Application Manual.
SE GPRS_R
GPRS module implements communication with Cloud server through cellular
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to monitor PV inverter’s data status. For more details, refer to GPRS_R
Product Application Manual.
RS485 switching module monitors PV inverter’s data status through collecting
RS485
and uploading data to Cloud server. For more details, refer to RS485 switching
Product Application Manual.
You can choose and buy SE WIFI/SE GPRS_R/RS485 communication
NOTE
modules from Senergy.
5.4.2 Bluetooth Communication
3K/5K implements Short-range communication with mobile phone through Bluetooth,
and its parameter setting and data monitoring can be done by SE Touch, an APP in
mobile phone. For more details, refer to SE Touch User Manuel.
> Insert the Bluetooth antenna to the corresponding inverter terminal, as shown in Figure
5.16.
Figure 5.16 Insert the Bluetooth antenna
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SE WIFI/ SE GPRS/ SE Touch User Manual are available from
NOTE
http://www.senergytec.com.
5.5 Installation Verification
Ensure that the inverter runs normally, and check the following items after the inverter is
installed:
Table 5.4 Checking items after installation
1. No other objects put on the PV inverter.
2. All screws, especially the screws used for electrical connections, are tightened
3. The 3K/5K is installed correctly and securely.
4. Ground, AC, DC, and Communication cables are connected tightly/correctly and securely, with
no open circuit or short circuit using multimeter.
5. Idle terminals are sealed.
6. All safety warning symbols are intact and complete on the inverter.
6. Power on & Power off
Only professional staff can be allowed to power on and operate the
inverter to avoid electrical shock.
WARNING
39
6.1 Powering On the inverter
Step 1 Switch ON the AC circuit breaker.
Step 2 Set the DC SWITCH of the inverter to ON.
Step 3 Observe statuses of LED indicator lights on the inverter according to Table 7.1.
If the LED enters in grid-tied status, it means the inverter is operating
NOTE
successfully. If there is any abnormal situation, contact customer service
center of Senergy timely.
6.2 Powering Off the inverter
Step 1 Run a shutdown command on the inverter APP, SE Touch.
Step 2 Switch off the AC circuit breaker.
Step 3 Set the DC SWITCH to OFF.
After the inverter powers off, the remaining electricity and heat may
still cause electrical shock and burns. Therefore, only begin servicing
WARNING
the inverter ten minutes after the power-off.
7. User Interface
7.1 Checking inverter operation status
inverter operation status can be obtained from observing LED indicator status. For more
details, refer to Table 7.1 LED Indicator status.
Table 7.1 LED Indicator status
Indicator
Status
Meaning
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Grid-tie
Blinking
indicator
The PV Strings voltage meets requirement of the inverter
grid-tied power generation
Steady ON
The inverter is grid-tied, every cycle lasts 30s. The first
（blinking
seconds blinking display power size, after that the blink turns
displays power
to steady on. When
size）
less than 20% rated power, blink an interval of 30s;
20%~40%% rated power, blink twice every 30s;
40%~60% rated power, blink three times every 30s;
60%~80% rated power, blink four times every 30s;
80%~100%% rated power, blink five times every 30s
Communication
OFF
The inverter does not communicating properly.
indicator
Blinking
One of these communication mode is running normally:
Bluetooth, WIFI, GPRS, RS485.
Alarm indicator
OFF
No alarm in the grid-tied system
Blinking
There is alarm in the grid-tied system
7.2 Viewing & setting data of inverter
You can view & set data through inverter APP, SE Touch, which can be downloaded
from your mobile phone. For details about operation, refer to SE Touch User Manual.
7.3 Setting Standard Parameters
Step 1 Open APP and choose “Bluetooth”, click BLExxxx to login, then click the
function list and choose Setting.
Step 2 Click switch user, enter password “admin” to login with administrator account,
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Step 3 Then you can see the inverter current running standard code on the settings page,
if it is not, We can change the settings to AS4777.2 for Australia.
8. Maintenance
Before maintaining and commissioning the PV inverter and its
peripheral distribution, switch off all the charged terminals of the PV
WARNING
inverter, and wait at least 10 minutes after the inverter is powered off.
8.1 Routine Maintenance
Table 8.1 Maintenance checklist and interval
Check
Check
Item
Content
Maintain content
Maintenanc
e
Interval
PV inverter Statistically
receiving
maintain
the
status
of NA
Weekly
electrical yield, and monitor its abnormal
42
status
status.
PV inverter Check periodically that the heat sink is free Clean
cleaning
from dust and blockage.
periodically Weekly
the heat sink.
PV inverter Check that the inverter is not damaged or If
there
is
any monthly
running
deformed.
abnormal
status
Check for normal sound emitted during phenomenon, replace
operation of the inverter.
the relevant parts.
Check that all inverter communicating well
during operation.
PV inverter Check that AC, DC, and communication If
Electrical
cables are securely connected;
there
is
any Semiannuall
abnormal
y
Connections Check that PGND cables are securely phenomenon, replace
connected;
the
cable
or
re-
Check that cables are intact and there are connect it.
not wire aging;
8.2 Troubleshooting
When inverter enter in shutdown mode, the alarm light is illuminated. Table 8.2 describes
the troubleshooting measures for common fault alarms in the inverter.
Table 8.2 Common troubleshooting measures
Alarm
Causes
Measures Recommended
Grid
The grid voltage exceeds
1. If the alarm occurs accidentally, possibly the power
Over
the allowable range.
grid is abnormal accidentally. No extra action is
Name
Voltage
needed.
Grid
2. If the alarm occurs repeatedly, contact the local
Under
power operator. After receiving approval of the local
Voltage
43
Grid
power bureau, revise the electrical protection
Fault
parameters setting through SE Touch, APP on the PV
Over
inverter.
Frequency
3. If the alarm persists for a long time, check that the
Under
AC circuit breaker/ AC terminals is disconnected, or
Frequency
that the grid has a power outage.
PV Over
PV modules input voltage
Check whether the number of PV modules and adjust
Voltage
exceeds the inverter’s
it.
allowable range.
PV Under
PV modules input voltage
1. When the sun light intensity weakens, PV modules
Voltage
is under the inverter’s
voltage decreases. No action is needed.
default protection value.
2. If such phenomena occur when the sun light
intensity does not weaken, check if there is short
circuit, open circuit etc. in the PV strings.
Insulation
A short circuit exists
1. Check the insulation resistance against the ground
Resistance
between PV strings and
for the PV strings. If a short circuit has occurred,
Abnormal
protection ground.
rectify the fault.
PV strings are installed in a
2. If the insulation resistance against the ground is less
permanently moist
than the default value in a rainy environment, set
environment.
Insulation resistance protection on SE Touch.
Residual
The insulation resistance
1. If the alarm occurs accidentally, possibly the
Current
against the ground at the
external circuits are abnormal accidentally. The
Abnormal
input side decreases during
inverter automatically recover to the normal operating
inverter operation, which
status after the fault is rectified.
causes excessively high
2. If the alarm occurs repeatedly or lasts a long time,
residual current.
check whether the insulation resistance against the
ground of PC strings is too low.
PV
PV strings have been
1. Check whether the PV string is shielded.
Strings
shielded for a long time.
2. If the PV string is clean and not shielded, check
Abnormal
PV strings are
whether the PV modules are aging or deteriorated.
deteriorating.
PV
The cables of PV strings
Check whether the cables of PV strings are correctly
44
Strings
are connected reversely
connected. If they are connected reversely, reconnect
Reverse
during inverter installation.
the cables.
If can NOT eraser the preceding alarm according the measures
NOTE
recommended, contact your dealer timely.
8.3 Removing the Inverter
Perform the following procedures to remove the inverter:
Step 1 Disconnect all cables from the inverter, including communications cables, DC
input power cables, AC output power cables, and PGND cables, as shown in Figure 8.1.
Figure 8.1 Removing DC input connector
Step 2 Remove the inverter from the rear panel.
Step 3 Remove the rear panel.
Before removing DC input connector, double check DC input switch is
WARNING
turned to OFF to avoid inverter damage and personal injury.
9. Quality Guarantee
9.1 Quality terms
45
1) Where otherwise agreed to in a contract, quality warranty period of 3K/5K is 60
months.
2) As for the PV inverter which is defective or damaged within its quality warranty
period, Senergy shall repair or replace it for free.
3) The defective/damaged PV inverter replaced must be returned to Senergy.
9.2 Liability waiver
Warranty or liability will be void if damage is caused from below operations/situations. If
customer asks for maintenance service, Senergy can, at its discretions, provide paid
service.
1) The warranty period expired;
2) The damage caused during transit;
3) The damage caused by man;
4) The damage caused by force majeure including, but not restricted to the following:
earthquake, flood, fire, explosion, debris flow etc.
5) Operation in adverse environments beyond that described in the User Manual;
6) Any installation and operation environment beyond the relevant national standards;
7) Any installing, reconfiguring, or using faulty;
8) Any revising the product or modifying its software code without authorization;
9) Maintenance faulty caused by the technician personnel unauthorized by Sernegy;
10) Any operation ignoring the safety precautions stipulated in the User Manual.
10. The Inverter Disposal
The PV inverter and its packing case are made from environmental protection material. If
the inverter service life has expired, do NOT cut it away with household garbage; dispose
the inverter in accordance with local rules for disposal of electrical equipment waste.
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11. Technical Specifications
Inverter Model
SE 1KTL-S1
SE 2KTL-S1
SE 2K5TL-S1
SE 3KTL-S1
SE 3K6TL-S1
Max. Efficiency
97.7%
97.7%
97.8%
97.8%
97.8%
European efficiency
96.2%
96.8%
97.3%
97.3%
97.5%
Efficiency
Input
Max. input voltage
600V
Rating input voltage
360V
Max. input current
12.5A
11A
Starting voltage
90V/70V
MPPToperation voltage
70V-580V
range
Full load MPPT voltage
90V-520V
170V-520V
210V-520V
240V-520V
360V-520V
range
Max. number of inputs
1
Number of MPPT routes
1
Max. short circuit
15A
current
Max. back feed current
0A
Over voltage class
II
Output
Rated output power
1,000W
2,000W
2,500W
3,000W
3,600W
Max. apparent power
1,100VA
2,200VA
2,750VA
3,300VA
3,960VA
Max. active power
1,100W
2,200W
2,750W
3,300W
3,960W
4.8A
9.5A
11.9A
14.3A
17.2A
7A
13A
20A
24A
(PF=1)
Max. output current
Max. Inrush current
Max. output fault
10A
17A
current
Rated grid voltage
220V/230V/240V,L+N+PE
Grid voltage range*
160V-300V
Rated grid frequency
Grid frequency range**
THDi
DC off-sets current
Power factor
Over voltage class
50Hz/60Hz
45Hz-55Hz/55Hz-65Hz
<3%（Rated power）
<0.5%ln
>0.99 Rated power（Adjust range 0.8 lead----0.8lag）
III
Common specs
Topology
Protective class
Transformerless
I
47
Protection level
IP65
Pollution degree
PD3
Operating temperature
-25 degree~60 degree
range
Relative humidity
0－100%
Warranty
5 year
Cooling
Natural convection
Max. operating altitude
4000m
Noise
<25dB
Dimensions
285*336*125mm
Weight
Protection
8.8KG
Input DC switch, Anti-islanding, protection, Output short circuit protection, Input reverseconnection protection, AC surge protection, Insulation resistance detection, RCD
detection
Inverter Model
SE 3KTL-D1
SE 3K6TL-D1
SE 4KTL-D1
SE 4K6TL-D1
SE 5KTL-D1
SE 6KTL-D1
Max. Efficiency
97.7%
97.7%
97.7%
97.7%
97.7%
97.7%
European efficiency
97.2%
97.2%
97.3%
97.3%
97.3%
97.3%
Efficiency
Input
Max. input voltage
600V
Rating input voltage
360V
Max. input current
22A (2*11A)
Starting voltage
90V/70V
MPPToperation
70V-580V
voltage range
Full load MPPT
150V-520V
170V-520V
190V-520V
220V-520V
240V-520V
300V-520V
voltage range
Max. number of inputs
Number of MPPT
2(1/1)
2
routes
Max. short circuit
15A
current
Max. back feed
0A
48
current
Over voltage class
II
Output
Rated output power
3,000W
3,600W
4,000W
4,600W
5,000W
6,000W
Max. apparent power
3,300VA
3,680VA
4,400VA
5,060VA
5,500VA
6,600VA
Max. active power
3,300W
3,680W
4,400W
5,060W
5,500W
6,600W
13.6A
16.0A
19.1A
22.0A
23.8A
28.6A
33A
40A
(PF=1)
Max. output current
Max. Inrush current
Max. output fault
10A
19A
23A
27A
31A
current
Rated grid voltage
220V/230V/240V,L+N+PE
Grid voltage range*
160V-300V
Rated grid frequency
50Hz/60Hz
Grid frequency
45Hz-55Hz/55Hz-65Hz
range**
THDi
Power factor
Over voltage class
<3%（Rated power）
<0.5%ln
>0.99 Rated power（Adjust range 0.8 lead----0.8lag）
Common specs
Topology
Transformerless
Protective class
I
Protection level
IP65
Pollution degree
PD3
Operating
-25 degree~60 degree
temperature range
Relative humidity
Warranty
0－100%
5 year
49
Cooling
Natural convection
Max. operating
4000m
altitude
Noise
<25dB
Dimensions
335*426*125mm
Weight
Protection
12.8KG
Input DC switch, Anti-islanding, protection, Output short circuit protection, Input reverseconnection protection, AC surge protection, Insulation resistance detection, RCD detection
Note:
1) Sign * means Grid power voltage range can be set according to national voltage
standards;
2) Sign ** means Power grid frequency range can be set according to national grid
standards
3) The preceding technical specifications are subject to change without prior notice. The
listed specifications are for your reference only.
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Tel： (+86) 0755-85245541
Fax： (+86) 0755-85245541
Add：Room 514-515, Building A, Co-talent Creative Park, No. 2, LiuXian Road,
Block 68, Xin’an Street, Bao’an District, ShenZhen, China.
Postcode：518101
E-mail：[email protected]
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