KStar KSG-1.5K-SM User manual

User Manual
KSG-1.5K/2K/3K/3.6K-SM
Solar Inverter
KSG-1.5K/2K/3K/3.6K-SM
Solar Inverter

1
Table of Contents
1 User Guide ......................................................................................2
2 Safety Instructions ..........................................................................3
3 Product Warranty ............................................................................4
4 Overview ........................................................................................5
4.1 Introduction of Grid-connected System ...................................5
4.2 Brief Introduction of PV Inverter.............................................6
4.3 Features Description.................................................................7
5 Installation.......................................................................................8
5.1 Packing ....................................................................................8
5.2 Installation of Inverter..............................................................8
5.3 Installation Location.................................................................9
5.4 Installation Procedure..............................................................10
5.5 Wiring......................................................................................12
5.6 Connection Procedure .............................................................13
6 Operation of Grid-connected Inverter ............................................14
6.1 Trial Operation ........................................................................15
6.2 Working Status ........................................................................15
6.3 LED Display............................................................................17
6.4 LCD Display ...........................................................................18
6.5 Max Power Point Tracking (MPPT) .......................................25
7 Communication Interface................................................................26
7.1 RS232......................................................................................26
7.2 RS485......................................................................................26
7.3 WLAN (optional) ....................................................................28
7.4 Remote control ........................................................................28
8 Trouble Shooting.............................................................................28
9 Specification ...................................................................................30

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1 User Guide
It is appreciating that you purchase KSG single-phase grid-connected
inverter produced by KSTAR. The product is non-transforming type
inverter, features reliable performance and advanced technology. It
converts DC currents from solar arrays into AC currents then fed to
municipal Electrical Grid.
This manual contains important safety and operational instructions
that must be accurately understood and followed before operating the
products.
Please refer to this manual once there is any problem during
installation or operation. Please contact your local distributors or
agent if not recovered by yourselves.
Thank you again for using our products, please read this manual
completely and hope you are satisfied with our products.
Please retain this manual for future reference.

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2 Safety Instructions
1. Electric Shock
The product has alternating current (AC) and direct
current (DC) connections, in order to avoid any electric
shocks during maintenance or before installation, please
make sure the disconnection of these AC or DC ports,
grounded for solar system and inverter.
2. Operation of Inverter
The product can be only operated or maintained by
professionals. The inverter can only be activated under
such situation: the housing or cover in good condition
without any damages, all screws are tightened in right
positions.
Before opening the inverters, it must be disconnected with
solar array and Grid. In order to discharge completely
from storage capacitance, you can’t touch the inverter
within at least 5 minutes after disconnection.
3. Requirement for Grid Connections
These inverters are only used for supply power for
municipal power grid, and don’t try to connect any other
energy resources with this inverter.
4. High Temperature Protection
During normal operation period, some parts (such as
cooling fins and cover) is heating. Sometimes it will reach
60℃. Please don’t touch these parts to avoid scald.

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3 Product Warranty
The warranty period of these inverters is 2 years. If you would like
to extend your warranty period, you can apply for it and keep up
warranty card well. The maintenance is free of charge during warranty
period. The packing material should be original or similar material
when the defective inverter is returned back to factory for repairing.
This product is guaranteed to cover all shortage or damage due to
design, production, or components. But the warranty doesn’t cover
the followings:
Beyond warranty period

No effective warranty card and product’s series number
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Damage caused improper delivery

Damage caused improper installation,unauthorized modification,

maintenance, or test, etc.
Damage caused by working in terrible environment which is not

complied with stipulations in this manual
Damage caused not comply with installation and operation range

in relative international standards or regulations
Damage caused by unnatural environment
