KStar KSG-3.2K-DM User Manual
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KStar KSG-3.2K-DM User Manual

Solar inverter
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KSG-3.2K/4K/5K-DM
Solar Inverter
Solar Inverter
User Manual
201808 Ver 1.0

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Summary of Contents for KStar KSG-3.2K-DM

  • Page 1 KSG-3.2K/4K/5K-DM Solar Inverter Solar Inverter User Manual 201808 Ver 1.0...

  • Page 2: Table Of Contents

    Table of Contents 1 Safety Instructions ..............2 2 PV Inverter Overview ............4 3 Installation ................5 3.1 Package ................ 5 3.2 Installation of Inverter ..........6 3.3 Installation Location ............ 7 3.4 Installation Procedure ..........8 3.5 Electrical connection ........... 9 4 Operation of Inverter ............

  • Page 3: Safety Instructions

    1 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 4 capacitors are electrically discharged. This product can cause a DC current in the external protective earth conductor. Where residual current-operated protective (RCD) or monitoring (RCM) device is strongly recommend to use 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 5: Pv Inverter Overview

    2 PV Inverter Overview 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: 5．Meter/DRM 1．PV input ports 6．WLAN/GPRS...

  • Page 6: Installation

    3 Installation 3.1 Package 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. PV inverter *1 Installation rack *1 Expansion Bolts*4...

  • Page 7: Installation Of Inverter

    3.2 Installation of Inverter Please read the following installation instruction before you start your work so as to achieve best effect of the inverter. Recommend using a sun shade minimizing direct sunlight, the ambient air temperature should be lower than 40℃. Inverters should NOT be installed near inflammable and explosive items.

  • Page 8: Installation Location

    3.3 Installation Location The inverter is suitable to be installed on vertical wall as shown above. Don’t install inverter on forward tilt wall. Don’t install inverter on horizontal wall. Mount the inverter at height same as eyesight for easy operation and data reading.

  • Page 9: Installation Procedure

    3.4 Installation Procedure Figure 3.4-1 stick the installation formwork from the packing list to the wall. Use Φ10 driller kit to drill installation holes with reference of the following photo for the correct position. Figure 3.4-2 clean the dust inside the holes, and insert expansion pipe into the holes.

  • Page 10: Electrical Connection

    Electrical Grid. Only qualified cables under the local electrical safety laws and regulations are allowed to connect. Table: Wiring cable specifications DC input AC output Model Recommended AC Recommended DC cable KSG-3.2K-DM 2.5mm -4mm 2.5mm -6mm KSG-4K-DM 2.5mm -4mm -6mm KSG-5K-DM 2.5mm...
  • Page 11 3.5.1 AC Cable Connection Recommendation of AC cable: inner diameter is 12AWG (4mm²), outer diameter is Ø10mm. NOTE： ： ： ： Disconnect the grid power (switch off breaker) so as to avoid any reconnection by suddenness. 1．To strip off 26~28mm of outer sleeve of the cable, and strip off 8.5±0.5mm of the 3 wires.
  • Page 12 3.5.2 PV Input Connection Recommendation of PV input cable: inner diameter is 12AWG (4mm²)， outer diameter is Ø6mm. Connection of the connector: Inserting stripped conductor. Cross-sections: 2.5 to 62 mm. Outside diameter: 5.0 to 8 mm. Stripping length: 15 2. Close spring with the thumb or using combination pliers.
  • Page 13 3.5.3 Earth terminal connection The earth connecting terminal is on the side of inverter. The customer should select to grounding base on site condition. 3.5.4 Miniature circuit breakers It is recommended strongly to install circuit breakers or fuses at the DC input and AC output to ensure safe installation and running.
  • Page 14 3.5.5 Communication cable connection This product provides RS485/WLAN/GPRS communication modes. RS485 The pin definitions of the RS485 port: Signal Assignment (A)T/R+ (B)T/R- Common Common WLAN/GPRS Please purchase external WIFI/GPRS module from us if WLAN/GPRS function is required on inverter. 1- VCC 2- GND 3- 485A 4- 485B...
  • Page 15 3.5.6 Power Limiting Device & DRED Installation Connection method of Power Limiting device CT please refer to Figure PV panel Public power grid PV Inverter NOTE: Pin1-2 is used to make connection to CT device. You can find it in accessory bag.
  • Page 16 DRED Connection 1234 5678 1. Supported DRM command: DRM0, DRM5, DRM6, DRM7, DRM8. 2. Pay attention to the direction of CT when wiring. CT clip should be locked tight. White /Black cable should connect Line 2, black cable should connect Line 1. Tighten them with screwdriver. Make sure CT cables connected to the right output phase lines of inverter when in use.

  • Page 17: Operation Of Inverter

    4 Operation of Inverter Working LED System Info Model: XXXXX XXXXX XXXXX XXXXX XXXXX Press button DSP: V1.0 ARM: V1.1 SN: XXXXXXXXXXXX Error LED Installation and Operation Manual...

  • Page 18: Normal Working Status

    4.1 Normal Working Status 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. System Info Model: XXXXXX DSP: V1.0 ARM: V1.1 SN: XXXXXXXXXXXX The input voltage is less 150V but higher than 120V, Standby the inverter will be in stand-...

  • Page 19: Fault Status

    4.2 Fault 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: Led Display

    4.3 LED Display In the front panel, here are 2 LED displays: RED light and GREEN light. Under normal working condition, GREEN light keeps on. The display functions of these 2 LED lights are as follows: Working (GREEN light): it will be on during normal working status. But it will be off during night time when no current is from solar Arrays.
  • Page 21 4.4.2 Working Mode Display When the inverter is running in working mode, the short time button press can change the LCD display. What the LCD will display when you press the button is showed below. Normal Active PWR: 4993 W Apparent PWR: 5004 VA Normal...
  • Page 22 4.4.3 Setting Mode Display The inverter could enter the setting mode by long press when "MENU" showed on the LCD. The long press can make the display return to the upper level menu or exit the setting mode ,when the cursor point to the title of a page(top line of the page).
  • Page 23 ● Grid Specification Setting Sub Menu Attention ： ： ： ： Please check the LOCAL of inverter grid specification (Table9.2) whether meet the actual requirement and reset if not! STD. 1. China 2. Germany 3. Australia STD. S h o r t t i m e b u t t o n p r e s s move the cursor, and long 4.
  • Page 24 ● Run Setting Sub Menu Start-up Volt Input: 150 Unit: Range: 150→ → → → 450 Start Voltage Setting Run Setting Start-up Delay Input: 1. Start-up Volt Unit: 2. Start-up Delay Range: 20→ → → → 300 3. Min AC Volt Start Time Setting Min AC Volt...
  • Page 25 Power Factor Input: 0.000 Range: 0.80→ → → → 1.20 Power Factor Setting Run Setting Active Power 7. Power Factor Input: Unit: ﹪ ﹪ ﹪ ﹪ 8. Active Power % Range: 0→ → → → 100 9. Reactive Power % Active Power Setting Reactive Power...
  • Page 26 Export PWR Enable 1. Enable 2. Disable Run Setting DRED Enable 13. Export PWR Enb 1. Enable 2. Disable 14. DRED Enable 15. Power Gradient Power Gradient Input: 16.67 Unit: Range: 5→ → → → 100 ● COMM Address Setting Sub Menu Short time button press setting COMM Address the number of this bit and long...
  • Page 27 ● Record Operation Sub Menu Inquiry 2:F00-1(500) Grid Volt Low 05/20/2000 20:52:12 Record Run Record 1.Inquire 2.Clear Clear 1.Yes 2.No Clear Run Record ●Statistics Sub Menu Time Statistic Run: Grid: Unit: Hour Run Time and Grid Time Statistics Connected Time 1.Time Statistics Times: 2.Operation Times...
  • Page 28 E-Today Num: Unit: Daily Generation Statistics E-Week 4.E-Today Num: Unit: 5.E-Week 6.E-Month Weekly Generation E-Month Num: Unit: Monthly Generation E-Year Num: Unit: Statistics Yearly Generation 7.E-Year 8.E-Total E-Total Num: 1342 Unit: Total Generation Installation and Operation Manual...
  • Page 29 ●Date/Time Sub Menu Date/Time Date: 05/20/2000 Time: 21:03:46 Week:6 Default Setting ● Sub Menu Default Setting 1.RESET Installation and Operation Manual...
  • Page 30 4.4.4 LCD Display Information Message Working Conditions Description display in English Normal working status PV voltage < 70V, the inverter is Not Functioning Period No display switched off Stand-by Stand-by 120V< PV voltage <150V PV voltage > 150V, the inverter get Self-test Checking started and self-test all modules...
  • Page 31 Bus Under Volt Bus voltage is too low. Bus Over Volt Bus voltage is too high. Bus Volt Unbalance Bus voltage unbalance. PV arrays Insulation impedance is Isolation Fault too low. PV Over Current PV Input current is too high. Hardware Over Current Hardware current is too high.

  • Page 32: Trouble Shooting

    5 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 33 Inverter DC Current Disconnect PV input and restart the inverter after few minutes high (F11) and check whether fault still exists. Contact with your local distributor if the fault still exists. Amb Temperatur 1) Disconnect PV input and cool down the inverter then restart Over(F12) the inverter to see if it is back to normal operation.

  • Page 34: Specification

    6 Specification Table 6.1 Technical Data Model KSG-3.2K-DM KSG-4K-DM KSG-5K-DM DC-Input Parameters Max. Input Power (W) 3300 4200 5200 Max. Input Voltage (Vdc) MPPT Operating Range 100-490 (Vdc) Max. input current per MPPT tracker (A) Rated Input Voltage (Vdc) Numbers of Input...
  • Page 35 Ventilation natural cooling Consumption During <0.2 Night Time (W) Noise (dB) <25 Communication 4 lines characters display, the content can be exchanged by pressing button Communication Interface RS485/GPRS/WLAN Mechanical Parameters Dimensions (W×D×H) mm 305×150×465 Weight (Kg) 14.5 15.5 Table 6.2 Grid Specification (single-phase) Output Voltage Grid Output Frequency...

  • Page 36: Product Warranty

    7 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.

This manual is also suitable for:

Ksg-4k-dmKsg-5k-dm

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