PrimeVOLT PV 7KTL-D1P User manual

User Manual
Applicable model: 7K/8K/10K

Forward
Application Model
Intended Audience
Symbol Conventions
1 Safety Precautions
1 1 Personnel Safety.
1 2 The PV Inverter Protection.
1 3 Installation Safety.
1 4 Electrical Connections.
1 5 Operating and Commissioning.
1 6 Maintenance.
1 7 Additional Information.
2Overview
2 1 Functional Models.
2 2 Network Application.
2 3 Outline and Dimensions.
2 4 Working Process.
2 5 Working Modes.
3Storage
4Installation
4 1 Checking the Outer Packing.
4 2 Moving the inverter.
4 3 Identify the PV Inverter.
4 4 Installation Requirements.
4 5 Installing a Rear Panel.
4 6 Installing the Inverter.
Contents
ContentsContents Single-phase Grid-tied PV Strings Inverter User Manual
Single-phase Grid-tied PV Strings Inverter User Manual
Ⅰ

5 Electrical Connections
5 1 Connecting Protection Ground PGND Cables
)(
.
5 2 Connecting AC Output Cables.
5 3 Connecting the PV Strings.
5 4 Connecting Communication Cables.
5 5 Power limit (optional).
5 6 Installation Verification.
6 System Operation
6 1 Powering ON the Inverter.
6 2 Powering OFF the Inverter
.
7 User Interface
7 1 HMI specification definition.
7.2 LCD is automatic page turning display
8 Maintenance
8 1 Routine Maintenance.
8 2 The Inverter Troubleshooting.
8 3 Removing the Inverter.
9 Disposal of the Inverter
10 Technical Specifications
ContentsContents
Single-phase Grid-tied PV Strings Inverter User Manual
Ⅱ

Application Model
Intended Audience
Notes:
7K
8K
10K
This user manual introduces 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.
This user manual is intended for photovoltaic (PV) inverter operating personnel and qualified electrical
technicians.
This user manual is subject to change (specific please in kind prevail) without prior notice.
PV 7KTL-D1P is abbreviated as 7K.The models are abbreviqted in the following paragraphs.
ForwardForward Single-phase Grid-tied PV Strings Inverter User Manual
Single-phase Grid-tied PV Strings Inverter User Manual
Ⅲ
Forward
Grid-tied PV string inverter

Indicates an imminently hazardous situation which, if not correctly
followed, will result in serious injury or death.
Indicates a potentially hazardous situation which, if not correctly followed,
could result in serious injury or death.
Indicates a potentially hazardous situation which, if not correctly followed,
could result in moderate or minor injury.
Indicates a potentially hazardous situation which, if not correctly followed,
could result in equipment failure to run or property damage.
Calls attention to important information best practices and tips:
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).
Safety symbols used in this manual, which highlight potential safety risks and important safety information,
are listed as follows:
WARNING
CAUTION
DANGER
NOTICE
NOTE
REFER
SymbolConventions
Symbol Description
Single-phase Grid-tied PV Strings Inverter User Manual ForwardForward
Ⅳ

Before beginning your journey, please read these safety precautions in the User Manual carefully.
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.
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 name plate on the inverter’s enclosure because it contains important
product information.
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)
As soon as receiving the PV inverter, please check if it is damaged during
its transportation. If yes, please contact your dealer immediately.
Pleaseread the UserManualcarefullybeforeinstalling the PV inverter;
warranty or liability willbevoid fromour companyifdamage is caused
by installation faults.
NOTICE
NOTICE
1 Safety Precautions1 Safety Precautions Single-phase Grid-tied PV Strings Inverter User Manual
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01
1Safety Precautions
1.1 Personnel Safety
1.2 PV Inverter Protection
1.3 Installation Safety

a. Input terminals of the PV inverter apply only to input terminals of PV String; do not connect any other
DC source to the input terminals.
b. Before connecting PV modules ensure that 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.
a. Before getting the permission of electrical power sector in the country/region the grid-tied PV inverter
cannot start 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.
Before installing the inverter, check all electrical ports to ensure no damage
and no short circuit. Otherwise personal casualty and/or fire will occur.
While the inverter operating high voltage can lead to an electrical shock
hazard and even cause personal casualties. Therefore operate the PV inverter
strictly according to the safety precautions in the user manual.
Power OFF all electrical terminals before the inverter maintenance; strictly
comply with the safety precautions in this document when operating the
inverter.
DANGER
DANGER
DANGER
When the PV array is exposed to light, it supplies a d.c. voltage to the PCE.
WARNING
Single-phase Grid-tied PV Strings Inverter User Manual 1 Safety Precautions1 Safety Precautions
02
1.4 Electrical Connections
1.5 Operating and Commissioning
1.6 Maintenance

To avoid any other unforeseeable risk, contact your dealer immediately,
1 Safety Precautions1 Safety Precautions Single-phase Grid-tied PV Strings Inverter User Manual
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03
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.
if there is any issue found during operation.
NOTICE
1.7 Additional Information

This chapter introduces the inverter and describes its functional model, network application, appearance,
dimensions and working process etc.
This series 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 power grid.
Figure2.1 shows a model number of the inverter, using 8K as an example.
The series 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,AC distribution units, and low-voltage
power grid, as shown in Figure 2.2.
The inverter is transformer less. Add an isolation transformer before
grounding the positive negative terminal of PV modules (like Thin Film
module) for operation.
Do not connect PV modules in parallel to several PV inverters for operation.
WARNING
WARNING
Figure2.1 Model number descriptions
8K
Rated AC output power
Single-phase Grid-tied PV Strings Inverter User Manual 2 Overview2 Overview
04
2Overview
2.1 Functional Models
2.2 Network Application
2.2.1 Grid-tied PV Power Systems
2.1.2 Model Description
2.1.1 Function

PV strings inverter AC Distribution Unit low-voltage power grid
LCD (optional)
Figures2.3 to 2.7 show the outline of the inverters as follows:
Figure2.2 a low-voltage grid-tied PV power system.
Figure2.3 The outline and dimensions of the Inverter (unit: mm)
Figure2.4 The front view and amplification effect of LED indicator area
400mm
450mm
170mm
LED
Inverters have been tested as per AS/NZS 4777.2:2020 for three phase combinations.
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2.3 Outline and Dimensions
2.3.1 Outline

Figure2.7 The bottom view of this series inverter
Figure2.5 The rear view of this series inverter
2. Vent valve
3. PV input connectors
(2String)
4. COM2(RS-485/meter/CT/DI)
5. COM1(WIFI/GPRS/Ethernet/ RS-485)
6. AC output connector
ground interface
7K
2. Vent valve
3. PV input connectors
(3String)
4. COM2(RS-485/meter/CT/DI)
5. COM1(WIFI/GPRS/Ethernet/ RS-485)
6. AC output connector
ground interface
8K/10K
Figure2.6 The bottom view of this series inverter
12346
57
12346
57
1. DC isolation switch
7. External protection
1. DC isolation switch
7. External protection
Single-phase Grid-tied PV Strings Inverter User Manual 2 Overview2 Overview
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Figure 2.9 shows the circuit diagram for the 7K PV Inverter:
Figure 2.9 circuit diagram
DC
EMI
Filter
1
MPPT
Route1
tiucricretrevnI
retliFIMECA
PV DC
Switch
Relay
L
N
PE
MPPT
Route2
egrusCA
rotcetorp
DC
EMI
Filter
2
7-10K receive inputs from PV strings through DC switch and surge protection in order: there are 2 groups
of PV strings input terminals on DC input terminal of 7K there are 3 groups of PV strings input terminals on
8-10K with the 1st and 2nd routes terminals merging into one independent MPPT. Then the inputs are grouped
into two MPPT routes inside the inverter to track the maximum power point of the PV strings. These two MPPT
power is then converted into DC Bus which is then converted to AC power through an inverter circuit. Finally
the converted AC power is fed to the Power grid through the inverter. Surge protection and EMI filer are
supported on both the DC andAC sides to reduce electromagnetic interference.
Figure 2.10 circuit diagram
tiucricretrevnI
retliFIMECA
PV DC
Switch
Relay
L
N
PE
MPPT
Route2
egrusCA
rotcetorp
DC
EMI
Filter
1
MPPT
Route2
DC
EMI
Filter
2
MPPT
Route1
Figure 2.10 shows the circuit diagram for the 8-10K PV Inverter:
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2 Overview2 Overview
2.4 Working Process
2.4.1 Basic principle Description
2.4.2 Circuit Diagrams
07

Table2.1 Working modes description
Three working modes of the inverter are shown as follows: standby, operating and shut down.
Table 2.1 shows the conditions for the inverter to switch between working modes.
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 to-start requirements.>
but cannot meet its minimum power requirements.
When the PV inverter is grid-tied and generate selectricity, 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.
The PV inverter will enter to the shutdown mode if detecting a fault or a
shutdown command.
Modes
Standby
Operating
Description
The PV inverter switches from standby or operating mode to shutdown
mode if 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.
Shutdown
Instructions that if the equipment is used in a manner not specified
by the manufacturer, the protection provided by the equipment may
be impaired.
NOTICE
Single-phase Grid-tied PV Strings Inverter User Manual 2 Overview2 Overview
2.5 Working Modes
08

This chapter describes the storage requirements for the inverter.
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).
>󰀰󰀰

The PV inverter should be stored in a clean and dry place and be protected from dust and water vapor
corrosion.
>
The PV inverter a maximum of six 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.>
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3 Storage3 Storage
3Storage
09

a. When receiving the inverter check that the packing materials are intact.
b. After unpacking, check that the deliverables are complete, intact, and consistent with your order list.
c. Examine the PV inverter and its fittings for damage such as scraps and cracks.
Do not install the inverter on flammable building materials or in an area
that stores flammable or explosive materials.
Do not install the inverter in a place where personnel are likely to come into
contact with its enclosure and heat sinks to avoid electrical shock/burn.
Figures4.1 The deliverables: The inverter and its fittings
CAUTION
DANGER
Items
A
B
C
D
E
F
G
Deliverables
The inverter
M6 Screw
Rear panel
File package
PV terminal connector group
Removal tool for DC connector
Expansion screws (reserved for tightening the rear panel)
Inverters have been tested as per AS/NZS 4777.2:2020 for three phase combinations.
Single-phase Grid-tied PV Strings Inverter User Manual 4 Installation4 Installation
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4Installation
4.1 Checking the Outer Packing

Figure4.2 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 designed to support the weight of the inverter.
> When placing the inverter on the floor horizontally, put foam or
paper under to protect itsenclosure.
Afte moving the PV inverter from packing box, identify it by reading its nameplate labeled on the side of
the inverter. The nameplate contains important product information: the model information, communications/
technical specifications, and compliance symbols.
CAUTION
.
After checking the outer packing, move the PV inverter to the designated installation position horizontally.
Hold the handles on both sides of the inverter, as shown in Figure4.2.
If any damage mentioned above is found, contact the dealer immediately.
NOTICE
PV modules for non-isolated inverters. Non-isolated inverters shall be
provided with installation instructions that require PV modules that have
an IEC 61730 ClassArating. If the maximumAC mains operating voltage
is higher than the PV array maximum system voltage then the instructions
shall require PV modules that have a maximum system voltage rating
based upon theAC mains voltage.
NOTICE
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4.2 Moving the inverter
4.3 Identify the PV Inverter
4.3.1 Nameplate

Applies to wall-mounting installation, as described below in detail.
Basic Requirements
a. The 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 the inverter.
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.
󰀰
its service life.
Installation Environment Requirements
Electrical shock!
There are residual voltages in the PV inverter. It needs 5 minutes to finish
discharge.
5mins
The PV inverter must not be touched when in operation. Its enclosure and
heat sinks are extremely hot.
Electrical shock! This part is charged. Only qualified and/or trained
electrical technicians are allowed to perform operations on the inverter.
If the inverter service life has expired, dispose it in accordance with local
rules for disposal of electrical equipment waste. Do not dispose the PV
inverter with household garbage.
The PV inverter is compliant with TUV.
Safety symbol Description
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4.3.2 Compliance and Safety Symbols
4.4 Installation Requirements
4.4.1 Determining the installation Position

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 4.3.
Figure4.3 Installation environment with awning (unit: mm).
a. It is recommended that the inverter is 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 4.4.
a. The carrier where the inverter is installed must be fire-proof. Do not install the inverter on flammable
building materials.
b. The wall must be solid enough to bear the weight of the inverter.
c. Do not install the inverter on a wall made of gypsum boards or similar materials with weak sound
insulation to avoid noise disturbance in a residential area.
the fron tview
Awning
the lateral view
≥500
≥1000
Carrier Requirements
Installation Space Requirements
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the front view the lateral view
Figure4.4 Installation Space Requirements (unit: mm)
c. When installing multiple inverter, install them along the same line (as shown in Figure 4.5) if sufficient
space is available, and install them in triangle mode (as shown in Figure 4.6) or in stacked mode (as shown
in Figure 4.7) if no sufficient space is available.The installation modes ensure sufficient space for installation
and heat dissipation.
Figure4.5 Installation along the same line (unit: mm)
>500
>500
>600
>150 >150
150 150
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150
1000
100
300
Figure4.6 Installation in triangle mode (unit: mm)
Figure4.7 Installation in stacked mode (unit: mm)
The clearance between multiple inverters must be increased to ensure
proper heat dissipation when they are installed in a hot area.
NOTICE
150
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