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Vertex 3KW User Manual

3kw off-grid pv inverter
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User Manual
3KW Off-Grid PV Inverter

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  • Page 1 User Manual 3KW Off-Grid PV Inverter...

  • Page 2: Table Of Contents

    Table Of Contents Introduction ...................... 1 Important Safety Warning ................2 Unpacking & Overview ..................4 3-1. Packing List ....................4 3-2. Product Overview ..................4 Installation......................5 4-1. Selecting Mounting Location ................5 4-2. Mounting Unit ....................5 5. AC Input Connection .................... 7 5-1.

  • Page 3: Introduction

    1. Introduction This off-grid PV inverter can provide power to connected loads by utilizing PV power, AC power and battery power. When PV energy is sufficient, it will power connected loads and charge battery. When PV energy is not sufficient, this inverter will power connected loads and charge battery from AC power source.

  • Page 4: Important Safety Warning

    2. Important Safety Warning Before using the inverter, please read all instructions and cautionary markings on the unit and this manual. Store the manual where it can be accessed easily. This manual is for qualified personnel. The tasks described in this manual may be performed by qualified personnel only.
  • Page 5 CAUTION! Use only recommended accessories from installer . Otherwise, not-qualified tools may cause a risk of fire, electric shock, or injury to persons. CAUTION! To reduce risk of fire hazard, do not cover or obstruct the heat sink. CAUTION! Do not operate the Inverter if it has received a sharp blow, been dropped, or otherwise damaged in any way.

  • Page 6: Unpacking & Overview

    3. Unpacking & Overview 3-1. Packing List Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You should have received the following items inside of package: Inverter unit Software CD Manual USB cable 3-2. Product Overview PV connectors Grid connectors (AC input connection)

  • Page 7: Installation

    4. Installation 4-1. Selecting Mounting Location Consider the following points before selecting where to install: Do not mount the inverter on flammable construction materials.  Mount on a solid surface  This inverter can make noises during operation which may be perceived as a nuisance in ...
  • Page 8 1. Drill four holes in the marked locations Place the unit on the surface and align the with four screws. mounting holes with the four screws. 3. Check if the solar inverter is firmly Note: Recommended specs for screws. secured.

  • Page 9: Ac Input Connection

    5. AC Input Connection 5-1. Preparation Before connecting to AC input power source, please install a separate circuit breaker between inverter and AC power source. This will ensure the inverter can be securely disconnected during maintenance and fully protected from over current of AC input. NOTE1: Although this inverter is equipped with a fuse (F6 point on PCB, 250VAC/30A), it’s still necessary to install a separate circuit breaker for safety consideration.

  • Page 10: Pv Module (Dc) Connection

    6. PV Module (DC) Connection CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter and PV modules. NOTE: Please use 600VDC/25A circuit breaker. Please follow below steps to implement PV module connection: WARNING: This inverter is only compatible to two types of PV modules: single crystalline and poly crystalline.

  • Page 11: Battery Connection

    WARNING! It's very important for system safety and efficient operation to use appropriate cable for PV module connection. To reduce risk of injury, please use the proper recommended cable size as below. Conductor cross-section (mm AWG no. ≥3.35 6 - 12 CAUTION: Never directly touch terminals of the inverter.

  • Page 12: Load (Ac Output) Connection

    8. Load (AC Output) Connection WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC connection. To reduce risk of injury, please use the proper recommended cable size as below. Conductor cross-section (mm2) AWG no. ≥3.35 10 - 12 Step 1: Remove insulation sleeve 8 mm for three...

  • Page 13: Commissioning

    9. Commissioning Step 1: Check the following requirements before commissioning: Ensure the inverter is firmly secured  Check if the open circuit DC voltage of PV module meets requirement (Refer to Section  Check if connection of AC cable to AC power source is correct. ...

  • Page 14: Operation

    10. Operation 10-1. Interface This display is operated by four buttons. NOTICE: To accurately monitor and calculate the energy generation, please calibrate the timer of this unit via software every one month. For the detailed calibration, please check the user manual of bundled software. 10-2.
  • Page 15 Indicates PV input voltage or power. Volt: voltage, KW: power Indicates battery voltage or percentage. Volt: voltage, %: percentage Indicates charging current to battery. Indicates that the warning occurs. Indicates that the fault occurs. Indicates fault code or warning code. Indicates date and time, or the date and time users set for querying energy generation.

  • Page 16: Button Definition

    10-3. Button Definition Button Operation Function Enter query menu. Short press. If it’s in query menu, press this button to confirm selection or entry. ENTER/ON Press and hold the button for This inverter is able to provide power to approximately 1 second when connected loads via AC output connector.
  • Page 17 Setting Display Procedure Input voltage or frequency of AC input  Procedure Enter Enter Enter Down Down Frequency, voltage, power or percentage of AC output  Procedure Enter Enter Enter Down Down...
  • Page 18 Input voltage or power of PV input. Procedure Enter Enter Enter Down Down Battery voltage or percentage.  Procedure Enter Down Enter Enter Down...
  • Page 19 Date and time.  Procedure Enter Down Enter Enter Down Today or total energy generated.  Procedure Enter Down Enter Enter Down...

  • Page 20: Lcd Display

    Mode of query energy generated.  Energy generation display of selected day Procedure Enter Down Enter Up Down Sets year Flashes Enter Enter Enter Up Down Sets month Flashes Enter Returns to main menu Down Down Enter Up Down Sets day Flashes LCD Display: Energy generation display of selected month...

  • Page 21: Inverter Mode

    Energy generation display of selected year Procedure Enter Down Enter Down Enter Enter Up Down Sets year Flashes Enter Returns to main menu LCD Display: 10-5. Operation Mode & Display Inverter mode This inverter is working with DC/INV operation and not connecting to the grid. LCD Display Description This inverter is activated to generate...
  • Page 22 This inverter is activated to generate power to the loads via AC output connector. At the same time, the utility is out of range. PV power is generated, but not sufficient enough to power loads by itself. PV power and battery are providing power to connected loads at the same time.
  • Page 23 Inverter fault occurs. But this inverter is activated to generate power to the loads via AC output connector. PV power is charging battery and the utility is providing power to the connected loads. Note: Refer to section 10-2 for detailed fault reference. This inverter is activated to generate power to the loads via AC output connector.
  • Page 24 This inverter is disabled to generate power to the loads via AC output connector. PV power and the utility are not detected or available at this moment.

  • Page 25: Charging Management

    11. Charging Management Default Charging voltage Note Value It can be adjusted via software from Max. charging current 5Amp to 25Amp. It can be adjusted via software from Floating charging voltage(default) 54.0 Vdc 50Vdc to 56Vdc. = Floating charging voltage + 2Vdc. But the max.
  • Page 26 If using sealed lead acid battery, please set up the floating charging current according to below formula: The maximum floating charging current = Battery capacity (Ah) x 0.2 For example, if you are using 125 Ah battery, then, floating charging current is 125 x 0.2=25 (A).

  • Page 27: Maintenance & Cleaning

    12. Maintenance & Cleaning Check the following points to ensure proper operation of whole solar system at regular intervals. Ensure all connectors of this inverter are cleaned all the time.  Before cleaning this inverter, be sure to turn off all the breakers (AC breaker, battery ...

  • Page 28: Trouble Shooting

    13. Trouble Shooting When there is no information displayed in the LCD, please check if PV module connection is correctly connected. 13-1. Warning List There are 21 situations defined as warnings. When a warning situation occurs, icon will flash and the fault code area will display “WR” wordings. You may check software for the detailed warning situations.

  • Page 29: Fault Reference Codes

    (flashing) No electrical ground Ground loss Fan fault Problem found in Fan module 13-2. Fault Reference Codes When a fault occurs, the icon will flash as a reminder. See below for fault codes for reference. Situation Solution Fault Icon Fault Event Code (flashing) DC bus voltage exceeds the...
  • Page 30 Situation Solution Fault Icon Fault Event Code (flashing) PV input voltage exceeds Check if the open circuit the upper threshold voltage of PV modules is higher than 500VDC. If PV open circuit voltage is less than 500VDC and the error message remains, pelase contact your installer.
  • Page 31 Situation Fault Icon Solution Fault Event Code (flashing) A difference occurred in the Please disconnect AC readings from the main and breaker first and then secondary controllers disconnect DC breaker. After LCD screen is Communication with the completely off, turn on DC main and secondary breaker.
  • Page 32 Situation Fault Icon Solution Fault Event Code (flashing) Battery disconnected Check if battery cable is connected firmly. If error message remains, please contact your installer. Inverter current is too high Remove exessive loads. for a long time Then, restart the inverter. Short circuited on inverter Turn off the inverter.

  • Page 33: Specifications

    14. Specifications MODEL Vertex 2KW Vertex 3KW RATED POWER 2000 W 3000 W PV INPUT (DC) Maximum DC Voltage 350 VDC 500 VDC Work Voltage Range 100 VDC ~ 350 VDC 100 VDC ~ 500 VDC Full Load MPP Voltage Range...

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