CPS SCA-T Series Grid-tied PV Inverter

CPS SCA7-10KTL-PSM
Installation and Operation Manual

SHANGHAI CHINT POWER SYSTEMS CO., LTD

CPS SCA-SM Series Inverter

Contents
Forward ------------------------------------------------------------------------------------------------------------ 4
Application Model ------------------------------------------------------------------------------------------------- 4
Intended Audience ------------------------------------------------------------------------------------------------- 4
Symbol Conventions ---------------------------------------------------------------------------------------------- 5

1 Safety Precautions ------------------------------------------------------------------------------------------ 6
1.1 Personnel Safety----------------------------------------------------------------------------------------------- 6
1.2 The PV Inverter Protection ---------------------------------------------------------------------------------- 6
1.3 Installation Safety --------------------------------------------------------------------------------------------- 6
1.4 Electrical Connections---------------------------------------------------------------------------------------- 7
1.5 Operating and Commissioning ------------------------------------------------------------------------------ 7
1.6 Maintenance --------------------------------------------------------------------------------------------------- 7
1.7 Additional Information --------------------------------------------------------------------------------------- 8

2 Overview of the Inverter -------------------------------------------------------------------------------- 9
2.1 Functional Models -------------------------------------------------------------------------------------------- 9
2.2 Network Application------------------------------------------------------------------------------------------ 9
2.3 Outline and Dimensions -------------------------------------------------------------------------------------10
2.4 Working Process----------------------------------------------------------------------------------------------12
2.5 Working Modes-----------------------------------------------------------------------------------------------13

3 Storage ----------------------------------------------------------------------------------------------------------14
4 Installation ----------------------------------------------------------------------------------------------------15
4.1 Checking the Outer Packing --------------------------------------------------------------------------------15
4.2 Moving the inverter ------------------------------------------------------------------------------------------16
4.3 Identify the PV Inverter -------------------------------------------------------------------------------------16
4.4 Installation Requirements -----------------------------------------------------------------------------------17
4.5 Installing a Rear Panel ---------------------------------------------------------------------------------------21
4.6 Installing the Inverter ----------------------------------------------------------------------------------------24
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CPS SCA- SM Series Inverter

5 Electrical Connections ----------------------------------------------------------------------------------25
5.1 Connecting Protection Ground (PGND) Cables ---------------------------------------------------------25
5.2 Connecting AC Output Cables -----------------------------------------------------------------------------27
5.3 Connecting the PV Strings ----------------------------------------------------------------------------------30
5.4 Connecting Communication Cables------------------------------------------------------------------------34
5.5 Power limit (optional) ---------------------------------------------------------------------------------------35
5.6 Installation Verification --------------------------------------------------------------------------------------38

6 System Operation ------------------------------------------------------------------------------------------39
6.1 Powering ON the Inverter -----------------------------------------------------------------------------------39
6.2 Powering OFF the Inverter ---------------------------------------------------------------------------------39

7 User Interface ------------------------------------------------------------------------------------------------40
7.1 LED specification definition--------------------------------------------------------------------------------41
7.2 LCD is automatic page turning display -------------------------------------------------------------------43

8 Maintenance --------------------------------------------------------------------------------------------------44
8.1 Routine Maintenance ----------------------------------------------------------------------------------------44
8.2 The Inverter Troubleshooting -------------------------------------------------------------------------------45
8.3 Removing the Inverter ---------------------------------------------------------------------------------------47

9 Disposal of the Inverter ---------------------------------------------------------------------------------48

10 Technical Specifications -------------------------------------------------------------------------------49

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CPS SCA- SM Series Inverter

ForwardDear User,
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.

Application Model
Grid-tied PV string inverter
CPS SCA7KTL-PSM
CPS SCA8KTL-PSM
CPS SCA10KTL-PSM

Intended Audience
This user manual is intended for photovoltaic (PV) inverter operating personnel and qualified
electrical technicians.

Notes:
This user manual is subject to change (specific please in kind prevail) without prior notice.

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CPS SCA- SM Series Inverter

Symbol Conventions
Safety symbols used in this manual, which highlight potential safety risks and important safety
information, are listed as follows:
SymbolDescription

DANGER

Indicates an imminently hazardous situation which, if not correctly
followed, will result in serious injury or death.

WARNING

Indicates a potentially hazardous situation which, if not correctly
followed, could result in serious injury or death.

CAUTION

Indicates a potentially hazardous situation which, if not correctly
followed, could result in moderate or minor injury.

NOTICE

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:

NOTE

REFER

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).

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CPS SCA- SM Series Inverter

1 Safety Precautions
Before beginning your journey, please read these safety precautions in User Manual carefully.

1.1 Personnel Safety
a. The PV inverter must be installed, electronically connected, operated and maintained throughspecially 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
NOTICEAs soon as receiving the PV inverter, please check if it is damaged
during its transportation. If yes, please contact your dealer 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’s enclosure because it contains
important product information.

1.3 Installation Safety
NOTICE

Please read the User Manual carefully before installing the PV inverter;
warranty or liability will be void from our company if damage is caused
by installation faults.

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 invertical direction, and ensure that no object is put on the heat sink affecting the cooling. (Fordetails, refer to Chapter 4 Installation)

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CPS SCA- SM Series Inverter

1.4 Electrical Connections

DANGER

Before installing the inverter, check all electrical ports to ensure nodamage and no short circuit. Otherwise personal casualty and/or fire
will occur.

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 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 withappropriate specification.

1.5 Operating and Commissioning

DANGERWARNING

While the inverter operating, high voltage can lead to an electricalshock hazard, and even cause personal casualties. Therefore,
operate the PV inverter strictly according to the safety precautions in
the user manual.
When the photovoltaic array is exposed to light, it supplies a d.c.
voltage to the PCE.

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.

1.6 Maintenance

DANGER

Power OFF all electrical terminals before the inverter maintenance;
strictly comply with the safety precautions in this document when
operating the inverter.
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CPS SCA- SM Series Invertera. 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 themaintenance 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
NOTICETo avoid any other unforeseeable risk, contact your dealer immediately,
if there is any issue found during operation.

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CPS SCA- SM Series Inverter

2 Overview of the Inverter
This chapter introduces the inverter and describes its functional model, network application,
appearance, dimensions, and working process etc.

2.1 Functional Models
2.1.1 Function
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.

WARNING

The inverter is transformerless. Add an isolation transformer before
grounding the positive/ negative terminal of PV modules (like Thin
Film module) for operation.

WARNING

Do not connect PV modules in parallel to several PV inverters for
operation.

2.1.2 Model Description
Figure 2.1 shows a model number of the inverter, using xK as an example.

CPS

SCA

xK

TL
Transformerless
Rated AC output power
Product series
Chint power systems

Figure 2.1 Model number descriptions

2.2 Network Application
2.2.1 Grid-tied PV Power Systems
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.
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CPS SCA- SM Series Inverter

PV strings

inverter

AC Distribution Unit

low-voltage power grid

Figure 2.2 a low-voltage grid-tied PV power system

Inverters have been tested as per AS/NZS 4777.2:2020 for three-phase combinations.
And the Maximum number of single-phase inverters used in three-phase combinations is 3.

2.3 Outline and Dimensions
2.3.1 Outline
Figures 2.3 to 2.7 show the outline of the inverters as follows:

170mm

400mm

450mm

Figure2.3 The outline and dimensions of the Inverter (unit: mm)

LED
Figure 2.5 The front view and amplification effect of LED indicator area

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CPS SCA- SM Series Inverter

Figure 2.6 The rear view of this series inverter

CPS SCA7KTL-PSM
1. DC isolation switch
2. Vent valve
3. PV input connectors(2 MPPT inputs)
4. COM2 (RS485/meter/CT/DI)
5. COM1 (WIFI/GPRS/Ethernet/RS485)
6. AC output connector
7. External protection
1ground interface

2

3

4

5

6

7

6

7

Figure 2.7 The bottom view of this series inverter

CPS SCA8KTL-PSM/CPS SCA10KTL-PSM
1. DC isolation switch
2. Vent valve
3. PV input connectors(3 MPPT inpust)
4. COM2 (RS485/meter/CT/DI)
5. COM1 (WIFI/GPRS/Ethernet/RS485)
6. AC output connector
7. External protection
ground interface
1

2

3

4

5

Figure 2.8 The bottom view of this series inverter

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CPS SCA- SM Series Inverter

2.4 Working Process
2.4.1 Basic principle Description
CPS SCA7-10KTL-PSM receive inputs from PV strings through DC switch and surge protection inorder: there are 2 groups of PV strings input terminals on DC input terminal of CPS SCA 7KTL-PSM
there are 3 groups of PV strings input terminals on CPS SCA8-10KTL-PSM 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 thenconverted into DC Bus which is then converted to AC power through an inverter circuit. Finally theconverted AC power is fed to the Power grid through the inverter. Surge protection and EMI filer aresupported on both the DC and AC sides to reduce electromagnetic interference.

2.4.2 Circuit Diagrams
Figure 2.9 shows the circuit diagram for the CPS SCA7KTL-PSM PV Inverter :MPPTRoute2AC surge
protector

DC
EMI
Filter2

AC EMI Filter

MPPT
Route1Inverter circuit

DC
EMI
Filter
1

L
N
PE

Relay
PV DC
SwitchFigure 2.9 circuit diagram

Figure 2.10 shows the circuit diagram for the CPS SCA8-10KTL-PSM PV Inverter :MPPTRoute2AC surge
protector

DC
EMI
Filter2

AC EMI Filter

MPPT
Route1
Route2Inverter circuit

DC
EMI
Filter
1

L
N
PE

Relay

PV DC
SwitchFigure 2.10 circuit diagram

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CPS SCA- SM Series Inverter

2.5 Working Modes
Three working modes of the inverter are shown as follows: standby, operating, and shutdown.
Table 2.1 shows the conditions for the inverter to switch between working modes.

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 to-start requirements,
but cannot meet its minimum power requirements.
When the PV inverter is grid-tied and generates electricity, it

Operating> 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.
The PV inverter switches from standby or operating mode to shutdown

Shutdown

mode if detecting a fault or a shutdown command.
The inverter switches from shutdown mode to standby mode if receivinga Startup command or detecting that a fault is rectified.
Table 2.1 Working modes description

NOTICE

instructions that if the equipment is used in a manner not specified
by the manufacturer, the protection provided by the equipment may
be impaired.

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CPS SCA- SM Series Inverter

3 Storage
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).
> Store the PV inverter at a temperature range of -25℃ to +60℃ and with the relative humidityof 0% to 100% (no condensing).
> The PV inverter should be stored in a clean and dry place and be protected from dust andwater 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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CPS SCA- SM Series Inverter

4 Installation
DANGER

Do not install the inverter on flammable building materials or in anarea that stores flammable or explosive materials.

CAUTION

Do not install the inverter in a place where personnel are likely tocome into contact with its enclosure and heat sinks to avoid electricalshock/burn.

Inverters have been tested as per AS/NZS 4777.2:2020 for three-phase combinations.
And the Maximum number of single-phase inverters used in three-phase combinations is 3.

4.1 Checking the Outer Packing
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 yourorder list.
c. Examine the PV inverter and its fittings for damage such as scraps and cracks.

Items

DeliverablesA

The inverter

B

AC output connector

C

Rear panel

D

File package

E

DC terminal connector groupF

M6 ScrewG

Expansion screws (reserved for tightening the rear panel)
Figures 4.1 The deliverables: The inverter and its fittings

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CPS SCA- SM Series Inverter

NOTICE

If any damage mentioned above is found, contact the dealer
immediately.

NOTICEPV modules for non-isolated inverters. Non-isolated inverters shallbe provided with installation instructions that require PV modules
that have an IEC 61730 Class A rating. If the maximum AC mains
operating voltage is higher than the PV array maximum system
voltage then the instructions shall require PV modules that have amaximum system voltage rating based upon the AC mains voltage.

4.2 Moving the inverter
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 Figure 4.2.

Figure 4.2 Moving the inverter>Do not place the PV inverter with its wiring terminals contacting the
CAUTIONfloor because the power ports and signal ports at the bottom of thedevice 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 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 of the inverter. The nameplate contains important product information: the model
information, communications/technical specifications, and compliance symbols.
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CPS SCA- SM Series Inverter
4.3.2 Compliance and Safety Symbols
Safety symbol

5mins

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! 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 withlocal rules for disposal of electrical equipment waste. Do not dispose
the PV inverter with household garbage.
The PV inverter is compliant with TUV.

4.4 Installation Requirements
Applies to wall-mounting installation, as described below in detail.

4.4.1 Determining the Installation Position
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.
Installation Environment Requirements
a. The ambient temperature must be below 50℃ which ensures the inverter’s optimal
operation and extends its service life.

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CPS SCA- SM Series Inverterb. 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 isavailable, build an awning, as shown in Figure 4.3.
≥1000

Awning≥500

the front viewthe lateral view

Figure 4.3 Installation environment with awning (unit: mm)

Carrier Requirements
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 weaksound insulation to avoid noise disturbance in a residential area.
Installation Space Requirementsa.

It is recommended that the inverter be installed at eye level to facilitate operation andmaintenance.

b.

Reserve enough clearance around the inverter to ensure sufficient space for installationand heat dissipation, as shown in Figure 4.4.

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CPS SCA- SM Series Inverter

>500

>150

>150

>500

>600

the front viewthe lateral view

Figure 4.4 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 instacked mode (as shown in Figure 4.7) if no sufficient space is available. The installation
modes ensure sufficient space for installation and heat dissipation.

150

150

Figure 4.5 Installation along the same line (unit: mm)

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CPS SCA- SM Series Inverter

100

300

Figure 4.6 Installation in triangle mode (unit: mm)

150

150
1000

Figure 4.7 Installation in stacked mode (unit: mm)

NOTICEThe clearance between multiple inverters must be increased toensure proper heat dissipation when they are installed in a hot area.

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CPS SCA- SM Series Inverter
4.4.2 Installation Mode Requirements
Install the inverter upright or at a maximum back tilt of 15 degrees to facilitate heat dissipation.
Below are some correct / wrong installation modes, as shown in Figures 4.8&4.9.

The correct installation mode

upright

Lean backFigures 4.8 The correct installation mode

The wrong installation mode

Horizontally

Upside-downFigure 4.9 The wrong installation modes

NOTICEThe wrong installation will lead to failure of the inverter operation.

4.5 Installing a Rear Panel
Before installing the inverter, secure the shipped rear panel to a wall.

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CPS SCA- SM Series Inverter
Step 1 Move out the rear panel from the packing case.
Step 2 Determine the positions for drilling holes (as shown in Figure 4.10) using the rear
panel.
335mm
80mm
96mm

240mm

121mm
70mm

171mm
8

Figure 4.10 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 4.11).

level

Figure 4.11 mark the hole positions using a marker

Step 4 Drill holes using a hammer drill and install expansion bolts, as shown in Figure 4.12.

DANGER

Before drilling the hole on the wall, ensure no damage on theelectric wire and/or water pipe inside the wall.

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CPS SCA- SM Series Invertera. Drill a hole in a marked position to a depth of 60 mm using a hammer drill with a Ф10mm bitb. Partially tighten an expansion bolt, vertically insert it into the hole, and knock the expansion bolt
completely into the hole using a rubber mallet.

∅10, drilling depth: 60-65mm

Punch holes

Install expansion bolts

Figure 4.12 Punch holes and install expansion (uint: mm)

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
4.13.

73.5

240

8
Spec: M6; the required torque is 3 N·m

335

Figure 4.13 Installing the real panel

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CPS SCA- SM Series Inverter

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
4.14.
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. as shown in Figure 4.14.

The required torque is 3N·m
Spec: M6

Figure 4.14 Securing the inverter

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CPS SCA- SM Series Inverter

5 Electrical Connections

DANGER

Before performing any electrical connections, ensure that both DC
and AC Switches are OFF. Otherwise, fatal injury can occur due to

CAUTION

Grounding the PV Strings needs below prerequisites:

the high voltage caused from AC and DC cables.

An isolation transformer must be installed on the AC side of each inverter;
Ensure that the neutral wire of the isolation transformer must be disconnected from the
PGND cable.
One isolation transformer is with one PV inverter: do not install a single isolation transformer
for multiple inverters; otherwise, circulating current generated by the inverters will lead tooperation failure.
Select Isolation SET on the mobile APP, and set in Input Grounded, With TF.

5.1 Connecting Protection Ground (PGND) Cables
5.1.1 Preparation
The ground cable and OT terminals have been prepared.
a. Ground cable: Outdoor copper-core cables with a cross sectional area of 4 mm2 or more arerecommended.
b. Specification of screw:M4;the required torque is 1.2N·m.

OT 6 ~ 4

Key parameter
Product series code
Terminal product series code

NOTE

Good grounding for the inverter helps resist the impact of surge
voltage and improve the EMI performance. Connect the PGND cablebefore connecting the AC power cables, DC power cables, andcommunication cables.
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CPS SCA- SM Series Inverter

NOTE

It is recommended that the ground cable be connected to a nearby
ground position. For a system with multiple inverters connected inparallel, connect the ground points of all inverters to ensure
equipotential connections.

5.1.2 Wiring Procedures
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.
L1

L2=L1+ (2mm~3mm)

Figure 5.1 Stripped length (unit: mm)

Step 2 Insert the exposed core wires into the crimping areas of the OT terminal and crimp themusing hydraulic pliers, as shown in Figure 5.2.
L3<2mmL4< (0mm~1.5mm)

Figure 5.2 Crimping a cable (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

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CPS SCA- SM Series Inverter
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.

PE

Figure 5.4 Secure the PGND cable

5.2 Connecting AC Output Cables
5.2.1 Preparation
The AC power cable and AC terminals have been prepared.
a. AC power cable: Outdoor copper-core cables are recommended. Table 5.1 describes the specifications.

Cross-sectional Area (mm2)
Cable

Cable typeAC cable

multi-core
outdoor cable

Range

Recommended
Value

8~14

8

Cable Outer
Diameter (mm)
Range
14~20

Table 5.1 AC output cable specifications

b. The recommended specifications of circuit breaker are shown in the table below.
Recommended Value

Inverter ModelCPS SCA7KTL-PSM

40A

CPS SCA8KTL-PSM

50A

CPS SCA10KTL-PSM

50A
Table 5.2 Circuit breaker specifications

The RCD used on the main solar supply circuit should be Type A 100mA. This and all associated wiring
must be installed in accordance with AS /NZS 4777.1
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CPS SCA- SM Series Inverter

WARNINGAn independent circuit breaker must be installed on the AC side of each
inverter to ensure that the inverter can be safely disconnected from thepower grid.

WARNING

Do not connect loads between the AC output terminals of the inverterand circuit breaker.

5.2.2 Procedure of Connecting AC Cables

NOTICEFor your operation and safety sake, please prepare multi-stranded wire,
crimping terminals and a proper crimping tool before AC Wiring.

Step 1 Remove an appropriate length of the jacket and insulation layer from the AC output cable.
L1

specification: M6

L2=L1+(2mm-3mm)
120(recommend)
Figure 5.5 Stripped length (unit: mm)

Step 2 Insert the exposed core wires into the crimp area of the OT terminal and crimp them using
hydraulic pliers. Wrap the wire crimp area with heat shrink tubing or PVC insulation tape.

Heat shrink tubing
Figure 5.6 Crimping OT terminals

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CPS SCA- SM Series Inverter
Step 3 Insert the processed AC output cables through waterproof terminals with reserved wire
length for electrical connecting.

Figure 5.7 Connecting AC cable

Step 4 Rout AC output cables to L, N and PE on the AC terminal block respectively, and tighten
them using screw driver to a torque of 1.5N·m.

Figure 5.8 Connecting AC cable

Step 5 Aligning with the hole position on the AC terminal cover, use a screw driver to tighten screws
to a torque of 1.2 N·m.

Figure 5.9 Connecting AC Connector

Step 6 Use a torque wrench to tighten the locking cap on the AC cable to a torque of 5 N·m.

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CPS SCA- SM Series Inverter

5.3 Connecting the PV Strings
DANGERPV Strings connection needs below prerequisites; otherwise, anelectrical shock can occur.

PV modules generate electric energy when exposed to sunlight and can create an electricalshock 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.

WARNING

Grounding the PV Strings needs below prerequisites; otherwise, afire 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 its permitted range.
The maximum short circuit current of each PV string must be always lower than or equal
to its permitted range.
The positive and negative terminals of PV modules must be connected to the positive andnegative DC input terminals of the inverter respectively.
During the installation of PV strings and the 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.
Input Route

Number of Input Route1
2
3

Connected to any routeConnected to route 1 & 3
Connected to route 1, 2 & 3

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CPS SCA- SM Series Inverter
PV Strings DC input cable and connectors have been prepared; Table 5.2 lists the recommended
outdoor copper-core DC input cable specifications.

Cross-sectional Area (mm2)
Cable

Cable typeDC cablecommon PV
cables in theindustry(model: PV1-F)

Cable Outer
Diameter (mm)Range

Recommended
Value

Range

4~6

4

5~8

Table 5.2 Recommended DC input cable recommended specifications

Connectors of PV Strings: Positive and negative DC input connectors are used, as shownin Figure 5.8 and Figure 5.9.

1

2

1

2

the insulation layer

locking nut

the insulation layer

locking nut

Figure 5.10 Positive connector compositions

Figure 5.11 Negative connector compositions

Positive and negative metal connectors are packed with positive andNOTE

negative connectors respectively when shipped out. After unpacking,keep the positive and negative ones separate to avoid confusion.

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CPS SCA- SM Series Inverter
Procedures of connecting the PV Strings
Step 1 Remove an appropriate length of the insulation layer from the positive and negative
power cables using a wire stripper, as shown in below Figure.

Positive metal connector

8~10mmNegative metal connector

Figure 5.12 Removing insulation layer for DC cable (unit: mm)

Step 2 Insert the exposed areas of the positive and negative power cables into the metalterminals of the positive and negative connectors respectively and crimp them using a crimping
tool, as shown in Figure 5.13.

Figure 5.13 Crimping a metal connector

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 5.14.

Figure 5.14 Connecting positive and negative connectors

32

CPS SCA- SM Series Inverter
Step 4 Tighten the locking nuts on the positive and negative connectors using a removal
wrench, as shown in Figure 5.15.

Figure 5.15 Locking connectors

Step 5 Measure the voltage of every route Strings using a multimeter. Ensure that the polaritiesof the DC input power cables are correct, as shown in Figure 5.16.
480 00RANGE

MAXMIN

REL

Hz %

! !!

10A MAX

FUSED

h FE

COM

FUSED

Figure 5.16 Checking the voltage of every route Strings

Step 6 Insert the positive and negative connectors into their corresponding terminals of the inverter untila "click" sound is heard, as shown in Figure 5.17.

Figure 5.17 Connecting to the inverter

Step 7 After connecting the PV strings, ensure that all connectors are in position by checking for resistancewhen a slight pull is applied.
33

CPS SCA- SM Series Inverter

5.4 Connecting Communication Cables
5.4.1 Communication Mode Description
You can use the following communication modes to implement communication:
Bluetooth, WIFI, GPRS and RS485 all of which are described as follows.
Bluetooth Module
You can turn on the Bluetooth function of the mobile phone, and set parameters and monitor dataof the inverter through the mobile APP. For details about operation, refer to APP User Manual.
WIFI & GPRS & RS485 Modules
Following figure show inverter’s interface to connect WIFI, GPRS and RS485 accessory, pleaserefer user manual of accessory for connecting method and its setting.
ModuleFunction description
WIFI module implements communication with Cloud server through

WIFI

GPRS

wireless network to monitor PV inverter's data status.
For more details, refer to WIFI Product Application Manual.
GPRS module implements communication with Cloud server throughcellular to monitor PV inverter's data status.
For more details, refer to GPRS Product Application Manual.
RS485 switching module monitors PV inverter's data status through

RS485

NOTE

collecting and uploading data to Cloud server.
For more details, refer to RS485 switching Product Application Manual.
You can choose and buy WIFI/GPRS/RS485 communication
modules from our company.
Table 5.3 WIFI & GPRS & RS485 Modules Description

Download APP
Scan the QR code to download "Chint Connect" APP:
Note: You need to grant all access rights in all pop-up windows when installing the
APP or settingyour phone.

34

Chint

CPS SCA- SM Series Inverter

5.5 Power limit (optional)
Enabling Bluetooth communication on your mobile phone, you can set parameters about power limit
function to control inverter.
Chint

In general, the power limit function will be realized by wiring the digital meter externally andsetting the parameters internally in APP. (Find specific setting instruction in clause 5.5.1&5.5.2)
Yet, except “external wiring system+APP setting” mode to acheive power limit, two generation
control functions, generation and export limit, are provided by the inverter’s APP according toAustralian regulation AS/NZS 4777.2:2020. (Find specific setting instruction in clause 5.5.3)
5.5.1 Power Limit Control Setting：Wiring diagram of Inverter+CT
InverterPV strings

low-voltage power grid

Load

L
N

CT

1 2 3 4 5 6

N
L

B
A
Location Description Function
1
CT+
Power limit
2
CTALM

4

Reserved

D12

5

Reserved

D11

6

Reserved

GND

7

Reserved

KEY

WIFI Password Reset

APP Settings

CT+
CTALM
D12
D11
GND

123456

3

Customer Interface

KEY

Figure 5.18 Wiring diagram of Inverter+CT

Default

Setting steps:

Power Limit

Power Limit

Power limit function

Power limit function

DisableCT sensor

Power limit mode

Power limit mode

Meter on Grid

Power limit CT ratio
1000:1

Maximum feed in grid power(W)0Digital Power Meter Type
Unknown》

On GridPower limit CT ratio
1000:1

Maximum feed in grid power(W)0Digital Power Meter Type
DDSU666

Figure 5.19 Settings via APP

35--Power limit function set to “CTsensor”--Set the CT position to “on load” or“on grid” according to the CT
installed;--Set Power limit CT ratio only when
apply Inverter+CT mode;--Set maximum feed-in grid power if
needed.

CPS SCA- SM Series Inverter

5.5.2 Power Limit Control Setting：Wiring diagram of Inverter+Meter
Load
InverterPV strings

low-voltage power grid

N

1

25
24
6
5

12
10
9
3

L

11

4

2

N

L

1 2 3 4 5 6

N

L

B
A
Description Function
1A
1B
2A
2B
Power limit
PEPE

Customer Interface

RS485

A
B
A
B
PE
PE

ON
1

123456

Location
1
2
3
4
5
6

Figure 5.20 Wiring diagram of Inverter+Meter

APP Settings
Default

Setting steps:

Power Limit

Power Limit

Power limit function

Power limit function

DisableDigital Power Meter

Power limit mode

Power limit mode

Meter on Grid

Power limit CT ratio》

On GridPower limit CT ratio

1000:1

1000:1

Maximum feed in grid power(W)Maximum feed in grid power(W)00Digital Power Meter Type

Digital Power Meter Type

Unknown

DDSU666--Power limit function set to “Digital
Power Meter”--Set the meter position to “on load” or“on grid” according to the meter
installed;--Set maximum feed-in grid power if
needed.

Figure 5.21 Settings via APP

When Power limit function sets to “Digital Power Meter”, the RS485 of inverter will change toa Host that will communicate with digital meter using Modbus-RTU protocol with 9600 BPS, 8
data bit, 1 stop bit, no parity data format, with communication address 1. Please make surethat the meter is set to Modbus-RTU, 9600, 8-N-1 with address 1. About digital meter setting
operation, please refer to the meter user manual.

36

CPS SCA- SM Series Inverter

5.5.3 Power Limit Control Setting：Generation and Export Limits
The generation control function is used to control the active or apparent power output levels of an inverteror multiple inverter combination such that it meets a predetermined generation output level that may be lessthan the total rated apparent power of the inverter or multiple inverter combination.
Follow the steps below to set parameters.
1. Open Chint Connect APP, and connect to the inverter you used. (See specific instruction in APP Manual.)
2. Find ‘Power Limit’ manual in Overview page.
3. Choose limit types to enter corresponding parameters. Please set limit values according to actual
necessity and relevant local regulation.

GENERATION LIMITSGeneration limits

Hard Limit
Power

Export limits

On

Soft Limit
Power

VA

xxxxx
On

VA

xxxxx

EXPORT LIMITS
Hard Limit
Power

On

Soft Limit
Power

W

xxxxx
On
xxxxx

W

Note: Actual setting contents of the APP may be slightly different, so the screenshots here are only
for reference.

??? How to choose between Generation limit and Export limit?

If you need to limit the apparent power output level of an inverter, then choose ‘Generation limits’;If you need to limit the export power level from an inverter to the grid, then choose ‘Export limit’.

How to choose between Hard limit and Soft limit?
If Hard Limit is enabled, power generation/export value exceeded its set value for 15s, then the
inverter will be disconnected within 5s.
If Soft Limit is enabled, power generation/export value exceeded its set value, then the generation
limit control function shall operate to reduce the apparent power output/ the power export of theinverter or multiple inverter combination to less than the soft limit within 15 s.
In general, the Soft Limit value should be set to less than the Hard Limit value.

37

CPS SCA- SM Series Inverter

5.5.4 Country code configuration (only for Administrator)
Click "INV/ESI settings" button to enter the "Inverter Settings" page. Click "Initial" button to set
grid code, then get back and click "RW Register" button to set register parameters or modbus
address if necessary. Now you can click "Overview" button to see basic information.
Back

CUGW-XXXXXXXXX

Back-> Refresh: 2022-07-13 09:10:18 GMT+8
Model: DG-4G-CEB
SN: 5032115000387
Firmware version: 2.0009T51
Cloud server: solar.chintpower.com 1883
Status: Online
Internet: Wi-Fi
Wi-Fi Status: Ready
Baud Rate: 4800 NONE 1(AUTO)

Inverter Settings

XXXXXXXXXX

Modbus ID 1
Overview

InitialGrid code setting

RW RegisterX

XXXXXXXXXX
AU (AS4777.2:2020
Australia A)
AU (AS4777.2:2020
Australia B)
AU (AS4777.2:2020
Australia C)
AU (AS4777.2:2020
New Zealand)
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

INV/ESI Settings

RefreshInternet Settings

More...

Note:
Grid code setting can be selected under
Administrator mode only.

Note:
For Australian Market: Region settings must be selected during commissioning. To comply with
AS/NZS ����.�:����, please select from Region A/B/C. Please contact your local electricity grid
operator on which region to select.

Note on Regional Safety Settings

Regional Safety Setting is a mandatory selection when configuring the system—the system will
not operate if it is not selected.You may be prompted to update the inverter software. Do this if
requested. For convenience the Regional Safety Settings are set by selecting the Region from thelist provided in the app. The list is maintained with the latest settings required by AS4777.2:2020.
Selection of a region automatically selects Power Quality Response Mode settings, including:
Voltage balance mode (where available)
Voltage and frequency limits
Sustained operation for frequency variations
Grid Protection
Power Rate Limits
Frequency Response Limits

Voltage Disturbance WithstandVolt-Var response
Volt-Watt response
Fixed Power Factor Mode
Reactive Power mode

Note

The local grid operator may request a non-standard safety setting for an installation. If so,
contact our company for assistance in changing settings.
38

CPS SCA- SM Series Inverter

5.6 DRM Connection
In accordance with AS/NZS 4777.2:2020, the inverter should support DRM( Demand ResponseMode) function.
The port definition of DRM function and methods of its connection are shown as below.
Location Description Function
1
CT+
Power limit
2
CTALM

4

Reserved

D12

5

Reserved

D11

6

DRM 0

GND

7

DRM 0

KEY

WIFI Password Reset

KEY123456

3

Customer Interface
CT+
CTALM
D12
D11
GND

METHOD FOR ASSERTING DRM
ModeFunction

DRM 0

Short circuit COM & REF

No DRM

Open circuit COM & REF

5.7 Installation Verification
Check the following items after the inverter is installed according to Table 5.4.
1. No other objects put on the PV inverter.
2. All screws, especially the screws used for electrical connections, are tightened
3. The PV inverter is installed correctly and securely.
4. Ground, AC, DC, and Communications cables are connected tightly/correctly and securely.
5. Check there is no open circuit or short-circuits at AC and DC terminals using multimeter.
6. Waterproof connectors at AC terminals and RS485 ports are plugged with waterproof
plugs tightly.
7. Covers at AC terminals are tightened.
8. Idle terminals are sealed.
9. All safety warning symbols are intact and complete on the inverter.
Table 5.4 Self-check items after installation

39

CPS SCA- SM Series Inverter

6 System Operation
6.1 Powering ON the Inverter
Step 1: Switch ON the AC circuit breaker.
Step 2: If the inverter has a switch, turn the switch to "ON" state.
Step 3: Observe statuses of LED indicator lights on the inverter according to Table 7.2.

NOTE

When LED status lights display the inverter has entered
grid-connecting, it means the inverter is operating well. Any query
during operating the PV inverter, call your dealer.

6.2 Powering OFF the Inverter
Step 1: Run a shutdown command on the mobile APP.
Step 2: Switch off the circuit breaker at AC terminal.
Step 3: If the inverter has a switch, turn the switch to "OFF" to observe.

WARNING

After the inverter powers off, the remaining electricity and heat may
still cause electrical shock and body burns. Please only begin
servicing the inverter ten minutes after the power-off.

7 User Interface
Display screen of inverter is composed of LED indicator and ( LCD is optional for some models
of inverter). Led contains three color states, blue, green and red respectively. For more details,
refer to Table 7.1 LED specification definition.

LED

NOTE

You can view & set data of the inverter through inverter APP.
For details about operation, refer to APP User Manual.
APP User Manual is available for free from website.
40

CPS SCA- SM Series Inverter

7.1 LED specification definition
Description

StatusStandbyblink(slowly)

Normal statusonGreen led

Limited power operationon

Red ledRefer to the table below

Warning Definition

LCD Display

StatusGrid over voltage

A0 Grid OV

Red led blink(slowly)

Grid under voltage

A1 Grid UVRed led blink(slowly)

Grid absent

A2 Grid Loss

Red led blink(slowly)

Grid over frequency

A3 Grid OF

Red led blink(slowly)

Grid under frequency

A4 Grid UF

Red led blink(slowly)

PV over voltage

B0 PV OVRed led blink(quickly)

Insulation resistance abnormal(Earth Fault)

B1 Imp abn

Red led blink(quickly)

Leakage current abnormal(Earth Fault)

B2 Lkge abn

Red led blink(quickly)

Control power abnormal

C0 Powerfail

Red led on

Arc fault

C1 Arc fault

Red led on

Dc bias current abnormal

C2 OP Dc OC

Red led on

Inverter relay abnormal

C3 RLY abn

Red led on

Inverter over temperature

C5 SYS OT

Red led on

Leakage current HCT abnormal

C6 LkgCT abn

Red led on

System fault

C7 SYS err

Red led on

Fan fault

C8 FAN lockDC link under voltage

C9 Bus UV

Red led on

DC link over voltage

CA Bus OV

Red led on

Internal Communications Fault

CB COM err

Red led on

Software version incompatibility

CC FW Incomp

Red led on

EEPROM fault

CD EEP err

Red led on

Sampling inconsistency

CE Inconsis

Red led on

Boost circuit abnorma

CG Bst abn

Red led on

Remote off

CN RMT OFF

LED IndicatorBlue led

Table 7.1 LED specification definition

41

CPS SCA- SM Series Inverter

If the Inverter is malfunctioning, a samll horn symbol will appear in the APP interface. You can get
specific fault information by clicking on the small horn symbol as below images.

Via-Gateway 5***41122312
Running Inverter ID 1CPS SCAxxxxxxxxxxxx[ FW Master 0.00 ; Dupty 0.00 ]SN 0001012311321314124
Warranty period ends on 2032-10-01

B1- PV insulation abnormal
B2 - Leakage current abnormal
Last updated ：2022-07-28 15:21:11 +0800
Summary

DC

AC

Other

Version

Runtime Min.

Current Power kW

00.00

00.00

E-Today kWh

E-Month kMh

00.00

00.00

E-Annual kWh

E-Total kMh

00.00

00.00

Data

Settings

More42

CPS SCA- SM Series Inverter

7.2 LCD is automatic page turning display
Mode

Display content

Note
Model nameVersionPV voltage

The LCD display interface of theinverter standby state is shown inAC voltage

the following sequence:

Today Energy
Total Energy
Warning

The interface of LCD display forcountdown of inverter grid-Start counter down

connected is shown in the right
picture:Output power
Today Energy
Total Energy

The LCD display interface of theinverter grid-connected state is

Total Hours

shown in the figure on the right:

PV voltage
PV current
AC voltage
AC current
hour:minuteyear/month/day

43

CPS SCA- SM Series Inverter

8 Maintenance

WARNING

Before maintaining and commissioning inverter and its peripheral
distribution unit, switch off all the charged terminals of the inverter
and wait at least 10 minutes after the inverter is powered off.

8.1 Routine Maintenance
Maintaincontent

Check Item

Check Content

inverter output
statusStatistically maintain the status ofelectrical yield, and remotely monitor

NA

MaintenanceInterval
Weeklyits abnormal status.
PV inverter

Check periodically that the heat sink is

Clean periodicallycleaning

free from dust and blockage.

the heat sink.

PV inverter
running
statusPV inverter
Electrical
Connections

Check that the inverter is not damaged
or deformed.
Check for normal sound emitted during
inverter operation.
Check and ensure that all inverter
communications is running well.
Check that AC, DC, and communication
cables are securely connected;
Check that PGND cables are securely
connected;
Check that cables are intact and there
are not wire aging;

If there is any
abnormalphenomenon,
replace themonthly

relevant parts.
If there is any
abnormalphenomenon,
replace the cableor re-connect it.

Table 8.1 Maintenance checklist and interval

44

yearlySemiannually

CPS SCA- SM Series Inverter

8.2 The Inverter Troubleshooting
When the inverter has an exception, its basic common warning and exception handling methods
are shown in the table 8.2.
Alarm Name

CausesMeasures Recommended

The grid voltage
exceeds its
allowable range.

1. If the alarm occurs accidentally, possibly thepower grid is abnormal accidentally. No extra
action is needed.
2. If the alarm occurs repeatedly, contact the local
power station. After receiving approval of the local
power bureau, revise the electrical protection
parameters setting on the inverter through mobile APP.
3. If the alarm persists for a long time, check whether
the AC circuit breaker/AC terminals is disconnected
or not, or if the grid has a power outage.

PV Over
Voltage

PV modules input
voltage exceeds
the inverter’s
allowable range.

Check the number of PV modules and adjust it if need.

PV UnderVoltage

PV modules input
voltage is under
the inverter’s
defaulted
protection value.

1. When sunlight intensity weakens, PV modules
voltage decreases. No action is needed.
2. If such phenomena occur when sunlight intensity
does not weaken, check if there is short circuit, open
circuit etc. in the PV strings.

Insulation
Resistance
Abnormal

A short circuit
exists between
PV strings andprotection ground.
PV strings are
installed in along-term moist
environment.

1. Check the insulation resistance against the groundfor the PV strings. If a short circuit has occurred,
rectify the fault.
2. If the insulation resistance against the ground isless than the default value in a rainy environment, set
Insulation resistance protection on APP.

Grid
Over Voltage
Grid
Under Voltage
Over
Frequency
Under
Frequency

45

CPS SCA- SM Series Inverter

The insulation
resistance against

Residual
Current
Abnormalthe ground at the
input sidedecreases
during the inverter
operation, whichcauses excessively
high residual
current.

1. If the alarm occurs accidentally, possibly the external
circuits are abnormal accidentally. The inverter
automatically recovers to the normal operating status
after the fault is rectified.
2. If the alarm occurs repeatedly or lasts a long time,check whether the insulation resistance against the
ground of PC strings is too low.

PV Strings
AbnormalPV strings havebeen shielded fora long time.
PV strings are
deteriorating.

1. Check whether the PV string is shielded.
2. If the PV string is clean and not shielded, check
whether the PV modules are aging or deteriorated.

PV Strings
ReverseThe cables of PV
strings areconnected
reversely during theinverter installation.

Check whether the cables of PV strings are correctly
connected. If they are connected reversely, reconnect
the cables.

Abnormal internalenergy control
imbalance has
been triggered by
the PV Strings/grid
sharp change ofworking conditions

1. If the alarm occurs occasionally, the inverter can
automatically recover to the normal operating status
after the fault is rectified.
2. If the alarm occurs repeatedly, contact your dealer
for technical support.

EEPROM Fault

EEPROM
Component
damagedReplace the monitoring board.

Zero power
generation andYellow alarm lightilluminating inremote monitor
systemCommunications
outageIf modem or other data logger is used, please reboot
it; if still does not work after rebooting, contact yourdealer.

BUS Under
Voltage
BUS Over Voltage
Invert Module
Fault
BOOST Fault

46

CPS SCA- SM Series Inverter

remote monitor
displays zero

power generation
remote monitor
displays no output
voltage
Inverter off gridCommunications
outageIf modem or other data logger is used, please reboot
it; if still does not work after rebooting, contact yourdealer.

Output switch
tripping

Check if DC switch is damaged, and if not, switch it to
ON. If it still doesn’t work, contact your dealer.

1. Power grid fault;
2. DC switch

1. Wait till power is restored;
2. Turn DC switch to ON, and if DC switch trips a lot,

tripping

contact your dealer.

Table 8.2 Common troubleshooting measures

NOTE

If you cannot clear the preceding alarm according the measures
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.
Notes:
When removing DC input connector, insert the removal wrench to the bayonet, press thewrench down, and take out the connector carefully.
Step 2: Remove the inverter from the rear panel.
Step 3: Remove the rear panel.

WARNING

Before removing DC input connector, double check DC input switch
is turned to OFF to avoid inverter damage and personal injury.

47

CPS SCA- SM Series Inverter

9 Disposal of the Inverter
The PV inverter and its packing case are made from environment-friendly materials. If theinverter service life has expired, do NOT discard it with household garbage; dispose theinverter in accordance with local environmental laws and regulations.

48

CPS SCA- SM Series Inverter

10 Technical Specifications
Model

CPS SCA7KTL-PSM

CPS SCA8KTL-PSM

CPS SCA10KTL-PSM

Max.efficiency

98.2%

98.2%

98.2%

European efficiency

97.4%

97.5%

97.6%

Efficiency

Input (PV)Max. PV configuration (STC1)

133%

Max. input voltage (V)550

Rated input Voltage (V)360

Max. input current (A)40 (2*20)

50 (2*15+20)

Max. short circuit current (A)52 (2*26)

66 (2*20+26)

Start input voltage (V)90

MPPT operating voltage range (V)60-540Max. Number of PV Strings

3 (2/1)2 (1/1)
2

No. of MPPTs
Output (Grid)
Rated AC active power (W)

7000

8000

10000

Max. AC apparent power (VA)

7700

8800

10000

Max. AC active power(PF=1) (W)

7700

8800

10000

Max. AC output current (A)

35

40

45.5

Rated AC voltage (V)220/230, L+N+PE

AC voltage range (V)160-300 (Adjustable)
50/60

Rated Grid frequency (Hz)45-55 / 55-65 (Adjustable)

Grid frequency range (Hz)

<3% (Rated Power)

THDI<0.5%InDC current injection
Power factor>0.99@Rated power (Adjustable 0.8 Leading-0.8 Lagging)
90

Inrush Current (A)
1 STC : Standard Test Conditions.

49

CPS SCA- SM Series Inverter

Protection
SupportDC Switch
Anti-islanding protection

SupportAC overcurrent protection

SupportAC short circuit protection

SupportSupportDC reverse connection

DC Type III (Optional) / AC Type III

Surge Arrester
Insulation detection

Support

Leakage current protection

SupportGeneralTransferless

Topology
IP rating

IP65

Night Self Consumption<1W
Natural cooling

Cooling
Operating Temperature Range (℃)-25~60Relative Humidity Range

0~100%

Max. Operating Altitude (m)

4000
<30

Noise (dB)

400mm*450mm*170mm

Dimensions (W*H*D)

16

Weight (kg)
HMI & COM

Wirless & APP+LED, LCD (optional)

Display
Communication interface

WiFi /GPRS (optional)/RS485

Certification
IEC62109-1, IEC62109-2

SafetyGrid code

IEC61727/62116, ABNT 16149/16150, IEEE 1547, AS4777

Warranty

10 Years

Notes:
1) Grid power voltage range can be set according to national voltage standards;
2) 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.

50

Tel: +86 21 3779 1222-6300
Fax: +86 21 3779 1222-6003
Post code: 201614
E-mail: service.cps@chint.com
Add: Block 4, 3255 Sixian Road, SongJiang
District, Shanghai, P.R. China