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opti-solar Premium SP20000 User Manual

Solar hybrid 3phase pv inverter
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User Manual
Solar Hybrid 3Phase PV Inverter
SP20000 Premium
Version: 1.0

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Summary of Contents for opti-solar Premium SP20000

  • Page 1 User Manual Solar Hybrid 3Phase PV Inverter SP20000 Premium Version: 1.0...

  • 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. Preparation ................... 6 4-2. Unit Installation ................6 Grid (Utility) Connection ................ 7 5-1.

  • Page 3: Introduction

    1. Introduction This inverter can provide power to connected loads by utilizing PV power, utility power and battery power. SP20000 Premium Distribution Box PV module Electric grids Load Battery Figure 1 Basic hybrid PV System Overview Depending on different power situations, this inverter is designed to generate continuous power from PV solar modules (solar panels), battery, and the utility.

  • 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! Under high temperature environment, the cover of this inverter could be hot enough to cause skin burns if accidentally touched. Ensure that this inverter is away from normal traffic areas. CAUTION! Use only recommended accessories from installer. Otherwise, not-qualified tools may cause a risk of fire, electric shock, or injury to persons.

  • 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: Software CD Manual USB cable RS-232 cable 3-2. Product Overview PV connectors Grounding AC Grid connectors...

  • Page 7: Installation

    4. Installation Then, follow below steps to remove the UPS from the carton and pallet. Step 1: Remove carton and foams Step 2: Remove fixing plates on the two sides of the inverter as shown in the chart. After removing fixing plates, please put #screws back to inverter.

  • Page 8: Preparation

    4-1. Preparation Before connecting all wirings, please take off three covers by removing 4PCS screws as shown 4-2. Unit Installation Consider the following points before selecting where to install: It’s requested to have a clearance of approx. 80 cm to the front and back of the unit and approx.

  • Page 9: Grid (Utility) Connection

    5. Grid (Utility) Connection 5-1. Preparation NOTE 1: The overvoltage category of the AC input is III. It should be connected to the power distribution. NOTE 2: The inverter is built in a 63A/400V breaker to protect the inverter from AC power damage.

  • 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 1: Please use 1000VDC/20A circuit breaker. NOTE 2: The overvoltage category of the PV input is II. Please follow below steps to implement PV module connection: WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable: single crystalline, poly crystalline with class A-rated and CIGS modules.
  • Page 11 Step 2: Insert the ring terminal of PV wires flatly into PV connector according to polarities indicated on terminal block and tighten the terminal screws. RED cable to the positive terminal (+) BLACK cable to the negative terminal (-) CAUTION: Never directly touch terminals of the inverter. It will cause lethal electric shock.

  • Page 12: Battery Connection

    7. Battery Connection CAUTION: Before connecting to batteries, please install separately a DC circuit breaker between inverter and batteries. NOTE 1: Please only use sealed lead acid battery, vented and Gel battery. Please check maximum charging voltage and current when first using this inverter. If using Lithium iron or Nicd battery, please consult with installer for the details.

  • Page 13: Load (Ac Output) Connection

    8. Load (AC Output) Connection 8-1. Preparation CAUTION: To prevent further supply to the load via the inverter during any mode of operation, an additional disconnection device should be placed on in the building wiring Ring terminal: installation. WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC connection.

  • Page 14: Communication

    9. Communication The inverter is equipped with several communication ports and it is also equipped with a slot for alternative communication interfaces in order to communicate with a PC with corresponding software. This intelligent slot is suitable to install with SNMP card and Modbus card.

  • Page 15: Dry Contact Signal

    Dry Contact Signal There is one dry contact available on the back panel. It could be used to remote control for external generator. 10-1. Electric Parameter Parameter Symbol Max. Unit Relay DC voltage Relay DC current Note: The application of the dry contact should not exceed the electric parameter shown as above.

  • Page 16: Commissioning

    11. Commissioning Step 1: Check the following requirements before commissioning: Check if the open circuit DC voltage of PV module meets requirement (Refer to Section 6) Check if the open circuit utility voltage of the utility is at approximately same to the nominal expected value from local utility company.

  • Page 17: Initial Setup

    12. Initial Setup Before inverter operation, it’s required to set up “Operation Mode” via software. Please strictly follow below steps to set up. For more details, please check software manual. Step 1: After turning on the inverter and installing the software, please click “Open Monitor”...
  • Page 18 SECTION A: Standard: It will list local grid standard. It’s requested to have factory password to make any modifications. Please check local dealer only when this standard change is requested. CAUTION: Wrong setting could cause the unit damage or not working. Nominal Output Voltage: 230V.
  • Page 19 Allow to feed-in to the Grid: This option is only valid under Grid-tie and Grid-tie with backup modes. Users can decide if this inverter can feed-in to the grid. Allow battery to discharge when PV is available: This option is automatically determined by setting in “Load supply source (PV is available)”.
  • Page 20 It’s allowed to charge battery from PV power first. If it’s not sufficient, grid will charge battery. 2. PV only It is only allow PV power to charge battery. 3. None It is not allowed to charge battery no matter it’s from PV power or grid. Load supply source: When PV power is available: 1 PV, 2...
  • Page 21 PV energy supply priority setting: 1 Load, 2 Battery and 3 Grid. PV power will provide power to the load first. Then, it will charge battery. If there is any remaining power left, it will feed-in to the grid. Battery charging source: 1.
  • Page 22 Grid-tie with backup (III): PV energy supply priority setting: 1 Load, 2 Grid and 3 Battery PV power will provide power to the load first. If there is more PV power available, it will feed-in to the grid. If feed-in power reaches max. feed-in power setting, the remaining power will charge battery.
  • Page 23 battery power is running out, grid will back up the load. NOTE: This option will become ineffective during AC charging time and the priority will automatically become 1 Grid and 2 Battery order. Otherwise, it will cause battery damage. Grid-tie with backup (IV): Users are only allowed to set up peak time and off- peak electricity demand.
  • Page 24 Battery charging source: PV and grid charge battery PV power will charge battery first during off-peak time. If it’s not sufficient, grid will charge battery. Load supply source: 1 PV, 2 Grid, 3 Battery When battery is fully charged, remaining PV power will provide power to the load first.
  • Page 25 Off-Grid Off-Grid (I): Default setting for off-grid mode. PV energy supply priority setting: 1 Load, 2 Battery PV power will provide power to the load first and then charge battery. Feed-in to the grid is not allowed under this mode. At the same time, the grid relay is connected in Inverter mode.
  • Page 26 Grid will provide power to the load at first. If grid is not available, battery power will provide power backup. 2. 1 Battery, 2 Grid (Default) Battery power will provide power to the load at first. If battery power is running out, grid will back up the load.
  • Page 27 When PV power is not available: 1. 1 Grid, 2 Battery: Grid will provide power to the load at first. If grid is not available, battery power will provide power backup. 2. 1 Battery, 2 Grid: Battery power will provide power to the load at first. If battery power is running out, grid will back up the load.
  • Page 28 Load supply source: When PV power is available: 1 PV, 2 Battery, 3 Grid PV power will provide power to the load first. If it’s not sufficient, battery power will back up the load. Only after battery power is running, Grid will back up the load. When PV power is not available: 1.

  • Page 29: Operation

    13. Operation 13-1. 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. 13-2.

  • Page 30: Button Definition

    Indicates charging current to battery or discharging current from 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. Indicates solar panels.

  • Page 31: Query Menu Operation

    Short press. Return to previous menu. Press and hold the button ESC/OFF until the buzzer Turn off power to the loads. continuously sounds. Short press. Select last selection or increase value. If it’s in query menu, press this button to jump to next selection or decrease value.
  • Page 32 Frequency, voltage, power or percentage of AC output Procedure Input voltage or power of PV input. Procedure...
  • Page 33 Battery voltage or percentage. Procedure Date and time. Procedure...

  • Page 34: Operation Mode & Display

    Today or total energy generated. Procedure 13-5. Operation Mode & Display Below is only contained LCD display for grid-tie with backup mode (I). If you need to know other operation mode with LCD display, please check with installer. Inverter mode with grid connected This inverter is connected to grid and working with DC/INV operation.
  • Page 35 PV power is generated, but not sufficient enough to charge battery by itself. PV power and the utility are charging battery at the same time. And the utility is also supplying power to the connected load. This inverter is disabled to generate power to the loads via AC output.
  • Page 36 PV power is sufficient to provide power to loads and feed power back to the grid. PV power and utility are providing power to the connected loads because of insufficient PV power. Inverter mode without grid connected This inverter is working with DC/INV operation and not connecting to the grid. LCD Display Description PV power is sufficient to charge...
  • Page 37 Only PV power is available to provide power to connected loads. Bypass mode The inverter is working without DC/INV operation and connecting to the loads. LCD Display Description Only utility is charging battery and providing power to connected loads. Only utility is available to provide power to connected loads.
  • Page 38 If PV, battery or utility icons are flashing, it means they are not within acceptable working range. If they are not displayed, it means they are not detected.

  • Page 39: Charging Management

    14. Charging Management Default Charging Parameter Note Value It can be adjusted via software from Charging current 1Amp to 50Amp. It can be adjusted via software from Floating charging voltage (default) 448.0Vdc 384Vac to 480Vdc. Max. absorption charging voltage It can be adjusted via software from 432.0Vdc (default) 384Vac to 480Vdc.

  • Page 40: Maintenance & Cleaning

    15. 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 the solar panels, be sure to turn off PV DC breakers. Clean the solar panels, during the cool time of the day, whenever it is visibly dirty.

  • Page 41: Trouble Shooting

    16. Trouble Shooting When there is no information displayed in the LCD, please check if PV module, battery, or grid connection is correctly connected. NOTE: The warning and fault information can be recorded by remote monitoring software. 16-1. Warning List There are 17 situations defined as warnings.

  • Page 42: Fault Reference Codes

    16-2. Fault Reference Codes When a fault occurs, the icon will flash as a reminder. See below for fault codes for reference. Code Fault Event Possible cause Solution Bus voltage over Surge 1. Restart the inverter. 2. If the error message still remains, please contact your installer.
  • Page 43 R SCR Open Fault Internal Please contact your installer. components S SCR Open Fault failed. T SCR Open Fault Battery curr over Load fluctuates 1. Restart the inverter. 2. If the error message still Please contact your installer. Inv Volt Low Internal 1.

  • Page 44: Specifications

    17. Specifications MODEL SP20K Premium RATED POWER 20000 W PV INPUT (DC) Maximum DC Power 30000 W Nominal DC Voltage 720 VDC Maximum DC Voltage 950 VDC Working DC Voltage Range 500VDC ~ 950 VDC Start-up Voltage / Initial Feeding Voltage 500 VDC / 550 VDC MPP Voltage Range / Full Load MPP 550 VDC ~ 900 VDC / 625 VDC ~ 900 VDC...
  • Page 45 GENERAL PHYSICAL Dimension, D X W X H (mm) 559x 320x 909 Net Weight (kgs) 200kg INTERACE Communication Port RS-232/USB Optional SNMP, Modbus and AS-400 cards Intelligent Slot available ENVIRONMENT Protective Class Ingress Protection Rating IP20 Humidity 0 ~ 90% RH (No condensing) Operating Temperature -10 to 55°C (Power derating above 50°C) Altitude...

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