Moso SF4.2KTN User manual

Solar Family PV Grid-tied Inverter
User Manual
Shenzhen MOSO Electric Co.,Ltd.
R

The Solar Family Series Inverter
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Tableof Contents
1 Notes....................................................................................................................................................1
1.1 Validity ......................................................................................................................................1
1.2 Target Group.............................................................................................................................. 1
1.3 Safety .........................................................................................................................................1
2Introduction .........................................................................................................................................6
2.1 Overview....................................................................................................................................6
2.2 Electrical Block Diagram...........................................................................................................6
2.3 Terminals of PV Inverter ...........................................................................................................7
2.4 Dimension and Weight .............................................................................................................. 8
3 Packaging List.................................................................................................................................. 10
4 Technical Data ................................................................................................................................. 11
4.1 Input（DC）...........................................................................................................................11
4.2 Output（AC）.........................................................................................................................11
4.3 Efficiency Safety and Protection.............................................................................................. 12
4.4 General Data ............................................................................................................................12
5 Function............................................................................................................................................. 14
6Installation.........................................................................................................................................15
6.1 Safety Instructions ...................................................................................................................15
6.2 Selecting the Installation location............................................................................................15
6.3 Preparation............................................................................................................................... 16
6.4Monuting the Bracket ............................................................................................................... 16
6.5Mounting the Inverter ...............................................................................................................18
6.6 Check Inverter Installation Status ............................................................................................ 19
6.7 Connector Guide ...................................................................................................................... 19
7 Operation .......................................................................................................................................... 23
7.1 LED Display ............................................................................................................................23
7.2 LCD Display............................................................................................................................ 24
8 Setting up Communication .............................................................................................................27
8.1 Communication Interface Type ...............................................................................................27
8.2 Communication........................................................................................................................27
9 Troubleshooting ...............................................................................................................................30
10 Decommissioning ..........................................................................................................................32
10.1 Dismantling............................................................................................................................ 32
10.2 Packaging............................................................................................................................... 32
10.3 Storage ...................................................................................................................................32
10.4 Disposal ................................................................................................................................. 32
11 Warranty.......................................................................................................................................... 33
The Solar Family Series Inverter
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1 Notes
This manual is an integral part of the inverter. Please read the product manual carefully before
installation, operation or maintenance. Keep this product manual for future reference.
1.1 Validity
This manual describes the assembly, installation, commissioning and maintenance of the following
inverters:
SF1.6KTN SF2.2KTN SF3KTN
SF3.6KTN SF4.2KTN SF4.6KTN SF5KTN
1.2 Target Group
This manual is for qualified personnel who have received training and demonstrated skills and
knowledge in the construction and operation of this device.
Qualified personnel are trained to deal with the dangers and hazards involved in installing electric
devices.
1.3 Safety
1.3.1 Appropriate Usage
The Solar Family Series are the PV inverters which convert the DC current of a PV generator into
AC current and feed it into the public grid.
Figure 1 PV Grid-tied System
PV Module Grid-tied inverter Grid

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1.3.2 Important Safety Instructions
Danger!
Danger to life due to high voltages in the inverter!
·All work on the inverter must be carried out by qualified personnel
only.
·The inverter is forbidden to be operated by children or persons with
limited physical or mental capabilities, persons who lack of
experience and knowledge can only operate the inverter under the
condition of being given supervision or instruction.
·Children should be supervised to ensure that they do not play with
the inverter.
Caution!
Danger of burn injuries due to hot enclosure parts!
·During operation, the upper lid of the enclosure and the enclosure
body may become hot.
·Only touch on the lower enclosure lid is allowed during operation.
Caution!
Possible damage to health as a result of the effects of radiation!
·Do not stay closer to the inverter (beyond 20cm is available) for a
long time.
Note!
Grounding the PV generator.
·Please recommend PV modules have an IEC 61730 Class A rating.
Please don’t connect the PV modules to GND.
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1.3.3 Glossary of Symbols
This section gives a glossary of all the symbols shown on the inverter and the type label.
●Symbols on the inverter
Symbol
Explanation
Danger to life due to high voltages in the inverter!
•There would be residual voltage in the inverter. The inverter requires
1 minute to discharging.
•Wait for 5 minutes before you open the upper lid or the DC lid.
Beware of hot surface.
·The inverter may become hot during operation. Avoid any contact to
the surface during operation.
Danger of high voltages
·Danger to life due to high voltages in the inverter!
Risk of electric shock!
·Only authorized personnel is allowed to set the DIP switch (SW1).
Requests the user to consult the manual
Indicates caution followed by important instructions
Equipment grounding conductor
AC voltage
You can operate the interface by tapping on it
·Tapping once: The background illumination switches on.
·Tapping again: Updating information.
Recovery and recycling.
ISO 7000-1641
Refer to the operating instructions
ISO 7000-0434
Caution,risk of danger

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●Symbols on the type label
SymbolExplanation
CE mark.
·The inverter complies with the requirements of the applicable CE
guidelines.
TUV mark.
·The inverter complies with the requirements of the applicable TUV
guidelines.
SAA mark.
·The inverter complies with the requirements of the applicable SAA
guidelines.
G59 mark.
·The inverter complies with the requirements of the applicable G59
guidelines.
G83 mark.
·The inverter complies with the requirements of the applicable G83
guidelines.
CQC mark.
•The inverter complies with the requirements of the applicable CQC
guidelines.
、
●Safety precaution
When using the product, please do remember the below information to avoid the fire, lightning or
other personal injury:
Warning!
Ensure that input DC voltage is less than Max. DC voltage.
·Over voltage may cause permanent damage to inverter or other
losses, which will not be included in warranty!
·This chapter contains important safety and operating instructions.
·Read and keep this operation Guide for future reference.
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Warning!
· Authorized service personnel must disconnect both AC and DC
power from the SF series inverter before attempting any
maintenance or cleaning or working on any circuits connected to
the SF series inverter.
Warning!
·The photovoltaic array is exposed to sunlight, it supplies DC voltage
to the inverter.

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2Introduction
2.1 Overview
Figure 2 Stereogram
2.2 Electrical Block Diagram
●Electrical block diagram
Figure 3 Electrical block diagram
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.3 Terminals of PV Inverter
Figure 4 Terminals of PV Inverter (SF1.6KTN/SF2.2KTN/SF3KTN)
Figure 5 Terminals of PV Inverter (SF3.6KTN/SF4.2KTN/SF4.6KTN/SF5KTN)

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2.4 Dimension and Weight
●Dimension
Figure6 SF1.6KTN/SF2.2KTN/SF3KTN
120mm
342mm
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Figure7 SF3.6KTN/SF4.2KTN/SF4.6KTN/SF5KTN
●Weight
Table 1
Model
SF1.6KTN SF2.2KTN SF3KTN SF3.6KTN SF4.2KTN SF4.6KTN SF5KTN
Weight [kg] 8 8 8 11 11 11 11
330mm

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3 Packaging List
Table 2
The Solar Family is shipped with the following items:
Figure 8
Item Name Quantity
A Solar Inverter 1
BMounting Frame 1
CMounting Screws 4
DMounting Frame Screws Sleeve 4
EMounting Screws 2
FManual 1
F
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4 Technical Data
4.1 Input（DC）
Table 3
Model SF1.6KTN SF2.2KTN SF3KTN SF3.6KTN SF4.2KTN SF4.6KTN SF5KTN
Max. DC
Power[W] 2200280036004400500054005800
Max. DC power
each MPP tracker
[W]
2200280036002200/2500/2700/2900
Max. DC
Voltage[V] 550550
Max.Input
Current of MPP
Tracker[A]
11 11 11/11
Number of MPP
Trackers / Strings
per MPP Tracker
1/1 2/1
MPPT Voltage
Range [V] 80-550 80-550 80-550 80-550 80-550 80-550 80-550
Nominal PV
Voltage [V] 360 360
Start
Voltage/On-Grid
Voltage
100/120 100/120
Overvoltage
category Ⅱ Ⅱ
4.2 Output（AC）
Table 4
Model SF1.6KTN SF2.2KTN SF3KTN SF3.6KTN SF4.2KTN SF4.6KTN SF5KTN
Max. AC
Power[W] 160022003000 3600 4200 4600 5000
Max. AC Current
[A] 7.3 10 13.7 16.4 19.1 20.9 22.7
Nominal AC
Voltage [V] 220/230/240220/230/240
AC Voltage
Range [V] 80-300 80-300
AC Grid
Frequency [Hz] 50/60 50/60

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Power Factor
(cosφ)0.8lagging-0.8leading 0.8lagging-0.8leading
THD
(at nominal
power)
<3% <3%
Overvoltage
Category Ⅲ Ⅲ
*Maximum Output power limited to 16amps up to a maximum power of 3.6KW, for G83.
Maximum Output power limited to 18amps up to a maximum power of 3.6KW, for G59.
4.3 Efficiency Safety and Protection
Table 5
Model SF1.6KTN SF2.2KTN SF3KTN SF3.6KTN SF4.2KTN SF4.6KTN SF5KTN
Max. Efficiency 97.5% 97.5% 97.5% 98% 98% 98% 98%
Euro-Efficiency 97.0% 97.0% 97.0% 97.6% 97.6% 97.6% 97.6%
MPPT Efficiency 99.9% 99.9%
Overvoltage /
Under-
Voltage Protection
Yes Yes
Shutdown
Voltage / Start
Voltage
Yes Yes
DC Isolation
Impedance
Monitoring
Yes Yes
Ground Fault
Protection Yes Yes
Grid Monitoring Yes Yes
Ground Fault
Current
Monitoring
Yes Yes
DC Injection
Monitoring Yes Yes
4.4 General Data
Table 6
Model SF1.6KTN SF2.2KTN SF3KTN SF3.6KTN SF4.2KTN SF4.6KTN SF5KTN
Dimension(W/H/
D) [mm]340/330/120 340/398/120
Weight [kg] 8 8 8 11 11 11 11
Cooling Concept Natural Convection Natural Convection
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Noise (typical)
[dB] ≤25dB ≤25dB
Operating
Temperature
Range [°C]
-25℃～+60℃/derating at 45℃-25℃～+60℃/derating at 45℃
Relative humidity
range0% ~ 100% (condensing) 0%~ 100% (condensing)
Pollution Degree External (III) Internal (II) External (III) Internal (II)
Protective class ClassⅠClassⅠ
Degree of
Protection IP65 IP65
Topology Transformerless Transformerless
Internal
Consumption( ni
ght ) [W]
<0.5W <0.5W
LCD display optopt
Communication
Interfaces RS485/ WiFi optional RS485/ WiFi optional
Standard
Warranty
6/10/15 years
Free/opt./opt. 6/10/15 years
Free/opt./opt.

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5 Function
【Fault Mode】
If any fault/error occurs, inverter stops generating power until the fault/error is cleared. Some
fault/error will recover itself, and some may need to restart manually to resolve.
CAUTION!
The inverter output power decrease is usual underthe condition of thermal
protection, but if it occurs frequently, you need to check the heat sink or consider
putting the inverter in the place where have better air flow, and if output power
decreases caused by electrical problem, please ask for professional supports.
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6Installation
6.1 Safety Instructions
Do not remove the enclosure upper lid. Inverter contains non-user practical parts. All wiring and
electrical installation should be conducted by a qualified service personnel and must meet national
requirements.
Both AC and DC voltage sources are terminated inside the PV Inverter. Please disconnect these
circuits before servicing.
When a photovoltaic panel is exposed to sunlight, it generates DC voltage. When connected to this
equipment, a photovoltaic panel will charge the DC capacitors.
Energy stored in this equipment’s DC capacitors presents a risk of electric shock. Even after the
unit is disconnected from the grid and photovoltaic panels, high voltages may still exist inside the
PV-Inverter. Do not remove the upper lid until at least 5 minutes after disconnecting all power
sources.
This unit is designed to feed power to the public power grid only. Do not connect this unit to an AC
source or generator. Connecting inverter to external devices could result in serious damage to your
equipment.
Carefully remove the unit from its packaging and inspect for external damage. If you find any
imperfection, please contact with your local distributor or service center.
Although designed to meet all safety requirements, some parts and surfaces of inverter are still hot
during operation. To reduce the risk of injury, DO NOT touch the heat sink at the back of the
PV-Inverter or nearby surfaces while Inverter is operating.
Check environment where system is installed.
Check whether the installation site fall into any of the following conditions:
●The ambient temperature is beyond the range of the optional temperature limitation. ( -25°C to
+60°C, -13°F to +140°F),(Power derating begins at 45°C).
●Installation altitude is higher than 2000m.
●Prone to be damaged by sea water
●Close to corrosive gas or liquid (for example, locations where chemicals are processed or the
location where feed lots of poultry).
●Exposed to direct sunlight.
●Prone to be damaged in flooding or icing time
●Little air flow or high humidity.
●Exposed to steam, vapor, or water.
●Exposed to direct cool air.
●Close to the television antenna or antenna cable.
6.2 Selecting the Installation location
The installation method and mounting location must be suitable for the weight and dimensions of
the inverter. Select a wall or solid vertical surface which is able to support the PV Inverter.
Mount on a solid surface, the mounting location must be accessible at all times.
Vertical installation or tilted backwards by max. 15°.
The connection area must point downwards.

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Do not install horizontally.
Figure 9
6.3 Preparation
Below tools are needed before installation.
Figure 10 Installation Tools
6.4 Mounting the bracket
Inverter requires adequate cooling space. Allow at least 20cm space above and below the inverter.
Figure 11
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Using the mounting frame as a template, drill 3 holes as illustrated in image
Figure 12
Figure 13
20CM
20CM
20CM
20CM