KStar KSG-1K-SM User Manual
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KStar KSG-1K-SM User Manual

Solar inverter
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KSG-1K/1.5K/2K/3K-SM
Solar Inverter
Solar Inverter
User Manual
201603 Ver 1.0

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Summary of Contents for KStar KSG-1K-SM

  • Page 1 KSG-1K/1.5K/2K/3K-SM Solar Inverter Solar Inverter User Manual 201603 Ver 1.0...

  • Page 2: Table Of Contents

    Table of Contents 1 User Guide..................2 2 Safety Instructions................3 3 Product Warranty................5 4 Overview...................6 4.1 Introduction of Grid-connected System.........6 4.2 Brief Introduction of PV Inverter...........7 4.3 Features Description..............8 5 Installation....,..............9 5.1 Packing ..................9 5.2 Installation of Inverter ..............9 5.3 Installation Location..............10 5.4 Installation Procedure..............10 5.5 Wiring..................12 5.6 Connection Procedure ..............14...

  • Page 3: User Guide

    1 User Guide It is appreciating that you purchase single-phase grid-connected inverter produced by our company. 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.

  • Page 4: Safety Instructions

    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.
  • Page 5 minutes after switching off the inverter. This ensures that the capacitors are electrically discharged. This product can cause a d c current in the external protective earth conductor. Where a residual current- operated protective (RCD) or monitoring (RCM) device is strongly recommend to used for protection in a case of direct or indirect contact, only an RCD or RCM of Type B is allowed on the supply side of this product;...

  • Page 6: Product Warranty

    3 Product Warranty If you 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.

  • Page 7: Overview

    4 Overview 4.1 Introduction of Grid-connected System Basically Grid-connected system is comprised of 4 portions: PV array, PV inverter, AC connection unit and Public Grid connection unit. Once PV arrays receive sun shines, they will generate DC current and feed into PV inverter which is configured between DC input and municipal AC grid.

  • Page 8: Brief Introduction Of Pv Inverter

    4.2 Brief Introduction of PV Inverter The inverter coverts DC current from solar units into AC current, and feeds to Municipal Electrical Grid. The inverter is designed and produced as per relative requirement of laws and regulations. The shape and functions of relative parts is described as follows: 1 ．...

  • Page 9: Features Description

    7. RS232 port: By this interface, user can use computer to communicate with the equipment. There is water proof cover to protect RS232 connectors. 8. RS485 port： To realize single inverter or multiple communications via RS485 port or optional WIFI data logger. 9.

  • Page 10: Installation

    5 Installation 5.1 Packing Please check carefully before opening the package of the equipment. It may cause the inverter damage in case the packing material is found damage, please contact with forwarder for claim. If necessary, Please feel free to contact us. 5.2 Installation of Inverter Please read the following installation instruction before you start your work so as to achieve best effect of the inverter.

  • Page 11: Installation Location

    5.3 Installation Location 1. The inverter is suitable to be installed on vertical or backwards tilt wall as shown above, the tilt angle should be less 15°. 2. Don’t install inverter on forward tilt wall. 3. Don’t install inverter on horizontal wall. 4.
  • Page 12 Clean the dust inside the holes, and insert expansion pipe into the holes. then turn the screw into the expansion pipe. The distance between nut and wall should be 10mm atleast. Hang the inverter onto screws(from top to bottom), and check both sides and keep the inverter in right position, then tighten screws as shown in following pictures.

  • Page 13: Wiring

    5.5 Wiring Remove wiring cover in the inverter, you will see below shown connection ports: DC Input Output Switch RS-232 RS-485 Connector for DC input, the polarity sequence is Input positive, negative (+,-). Please find label with polarity markers. RS-232 RS232 communication interface Switch To connect or disconnect “+”...
  • Page 14 Input and output cable shall be PV private cables suitable for outdoor use. Table: Miniature circuit breakers specifications DC input AC output Model Recommended DC Recommended AC breakers breakers KSG-1K-SM 800V/16A KSG-1.5K-SM 800V/16A KSG-2K-SM 800V/16A KSG-3K-SM 800V/16A Installation and Operation Manual...

  • Page 15: Connection Procedure

    Table: Wiring cable specifications DC input AC output Model Recommended DC cable Recommended AC cable KSG-1K-SM 2.5mm -4mm 2.5mm -4mm KSG-1.5K-SM 2.5mm -4mm 2.5mm -4mm KSG-2K-SM 2.5mm -4mm 2.5mm -4mm KSG-3K-SM 2.5mm -4mm 2.5mm -4mm 5.6 Connection Procedure 1. Connection with Municipal Electrical Grid First disconnect with municipal Grid by breaker, make sure it will not be connected again even due to accident.

  • Page 16: Operation Of Grid-Connected Inverter

    6 Operation of Grid-connected Inverter Working LED Presss button X X X X X X X X X X X X X X X X X X X X X X X X Error LED Installation and Operation Manual...

  • Page 17: Trial Operation

    6.1 Trial Operation The inverter can be activated only after the following inspections are well executed: 1. Correct connection for AC cables. 2. All solar arrays are connected with the inverter correctly. 3. Tighten all screws. 4. Turn on the breaker between DC and AC. 5.
  • Page 18 The following example shows the process when PV voltage is increased from 120V: Turn on the inverter, its model and version will be displayed first. XXXXXX The input voltage is less than start voltage, the inverter will be in stand-by status.

  • Page 19: Led Display

    2. F ault Status Inverter is always under intelligent monitoring condition after it gets started. It will become faulty status when any fault occurs (such as municipal voltage is overload, frequency is over range) or components failure. The faulty information can be displayed by LCD, at that time the red LED is on.

  • Page 20: Lcd Display

    please refer to below chapters. 6.4 LCD Display 1. Button and Back Lighting Operation There are two types of button press, short time press means pressing the button less than 0.5 second, and long time press means pressing the button more than 3 seconds. The short time press is used for page up, moving the cursor;...
  • Page 21 If there is long time button press happened when the display stays in some page, then this page of display will be locked. In the same way, long time button press can make a page of display switch between lock and unlock status. The LCD display will return to the first page “Power &...
  • Page 22 The password is “123” when enter the “Grid SPEC” menu. PASSWORD → ● 485 Address Setting Sub Menu Short time button press setting the number of this bit and long time button press COMM Address change to next bit. → ●...
  • Page 23 4. Identification of LCD Display Information Message display Working Conditions Description in English Normal working status Not Functioning Period No display PV voltage < 70V, the inverter is switched off Stand-by Stand-by PV voltage < start voltage PV voltage > 150V, the inverter get started Self-test Checking and self test all modules...

  • Page 24: Max Power Point Tracking (Mppt)

    6.5 Max Power Point Tracking (MPPT) Under any arrays or any conditions, the system can be rapidly tracked the max. power from the arrays. When the output power is trending to be stable, which expresses that the inverter reach its Max power, meanwhile maximum power will be received and transferred into AC to feed to municipal electricity Grid by the inverter.

  • Page 25: Communication Interface

    7 Communication Interface This product provides RS232 and RS485 communication modes, WLAN communication optional. 7.1 RS232 There is water proof RS232 (DB9 type) communication port. Please open the water proof cover before using RS232 port. Single inverter can be monitored by computer through RS232 interface. The cable length between inverter and the computer should be less 15M.

  • Page 26: Remote Control

    Please purchase external WIFI module from us if WLAN function is required on inverter which has been purchased with RS485 port. Pin corresponding relationship between inverter and GPRS/ WIFI unit. 7.3 Remote control The inverter can realize the remote SHUTDOWN and ON and power limit regulatory function by the associated monitoring software.

  • Page 27: Trouble Shooting

    8 Trouble Shooting It is very easy for the inverter’s maintenance. When you meet any problems, please refer to the following trouble shooting first, please contact your local distributor if the problem can’t be solved by yourself. The following sheet lists some basic questions may encounter in the operation.
  • Page 28 (1) Inverter’s temperature too high, put the inverter in cooling Over place. Temperature Fault (2) If fault still occurs, please contact distributor. (1) Restart the equipment and check whether faulty still exists Relay Fault (2) If fault still exists, please contact distributor. (1) DC component in output current too high, wait for 2 minutes after alarm occurs, and check whether the DCI Fault...

  • Page 29: Specification

    9 Specification Table 9.1 Technical Data Model KSG-1K-SM KSG-1.5K-SM KSG-2K-SM KSG-3K-SM DC-Input Parameters Max. Input Power (W) 1150 1600 2100 3100 Max. Input Voltage (Vdc) MPPT Operating Range (Vdc) 100-490 Max.input current per MPPT tracker (A) Rated Input Voltage (Vdc)
  • Page 30 200 - 240 49 - 51 Thailand 198 - 242 48 - 51 Local 150 - 280 45 - 55 Table 9.3 Model KSG-1K-SM KSG-1.5K-SM KSG-2K-SM KSG-3K-SM Vmax PV (Vdc) Isc PV (Adc) 13,2 13.2 13.2 15.6 Max. continuous input...
  • Page 31 MPPT tracker / strings 1 / 1 1 / 1 1 / 1 1 / 1 MPPT range (full 105 ~ 400 145 ~ 400 190 ~ 400 240 ~ 400 load) (Vdc) Nominal AC Frequency (Hz) Nominal AC voltage (Vac) Power factor (full >0.99...

This manual is also suitable for:

Ksg-1.5k-smKsg-2k-smKsg-3k-sm

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