OmniPower OHY1P4805 User Manual
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OmniPower OHY1P4805 User Manual

5kw hybrid inverter
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Introduction
1.
OHY1P4805
5kW Hybrid Inverter
USER MANUAL
V3.0

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Summary of Contents for OmniPower OHY1P4805

  • Page 1 Introduction OHY1P4805 5kW Hybrid Inverter USER MANUAL V3.0...

  • Page 2: Table Of Contents

    Introduction Table of Contents Introduction ....................1 Important Safety Warning ................2 Unpacking & Overview ................. 4 Installation ..................... 5 Grid (Utility) Connection ................7 PV Module (DC) Connection ................ 9 Battery Connection ..................13 Load (AC Output) Connection ..............14 EMS Connection ..................16 10.

  • Page 3: Introduction

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

  • Page 4: Important Safety Warning

    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 Important Safety Warning 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/instruments from installer. Unsuitable tools may cause a risk of fire, electric shock, or injury to persons.

  • Page 6: Unpacking & Overview

    Unpacking & Overview 3. Unpacking & Overview 3-1. Packing List Before installation, please inspect the unit. Ensure that nothing inside the package is damaged. You should have received the following items inside of the package: Inverter unit PV connectors Mounting plate Fixing screws EMS port Software CD Manual USB cable...

  • Page 7: Installation

    Installation 4. Installation 4-1. Selecting Mounting Location Consider the following points before selecting where to install: • Do not mount the inverter on flammable materials. • Mount on a solid surface • This inverter can emit noises during operation which may be perceived as a nuisance in a living area.
  • Page 8 Installation Drill six holes at the marked Raise the inverter and place it over the locations for six screws supplied. mounting plate. The tightening torque is 35 N.m. 3. Fix the inverter in position with the Check if the inverter is firmly secured. two screws (M4*12) supplied.

  • Page 9: Grid (Utility) Connection

    Grid (Utility) Connection 5. Grid (Utility) Connection 5-1. Preparation Before connecting to AC utility, please install a separate AC circuit breaker between inverter and AC utility. This will ensure the inverter can be safely disconnected during maintenance and is fully isolated from the AC input. NOTE1: Although this inverter is equipped with a 250VAC/40A fuse, install a separate circuit breaker for safety.
  • Page 10 Grid (Utility) Connection 5-3. Connecting to the Generator Step 1: Check the generator voltage and frequency with a voltmeter. It should be the same as “VAC” value on the product label. Step 2: Turn off the circuit breaker. Step 3: Remove insulation sleeve 10 mm from all three conductors.

  • Page 11: Pv Module (Dc) Connection

    PV Module (DC) Connection 6. PV Module (DC) Connection CAUTION: Before connecting to PV modules, please install a DC circuit breaker/fuse separately between inverter and PV modules. NOTE1: Use a 1000VDC/10A circuit breaker / fuse. NOTE2: The overvoltage category of the PV input is II. Please follow below steps to implement PV module connection: WARNING: Because this inverter is not isolated, only three types of PV modules are acceptable: A-class rated monocrystalline, polycrystalline and CIGS modules.
  • Page 12 PV Module (DC) Connection Male terminal Crimping tool and spanner Cable preparation and connector assembly process: Strip one cable 8 mm on both ends and be careful NOT to nick or bend any of the strands. Insert stripped cable into female terminal and crimp female terminal as shown below.
  • Page 13 PV Module (DC) Connection Use spanner to screw compression nut tightly to female and male connector as shown below. Step 4: Check correct polarity of cable from PV modules to PV input connectors. Connect positive pole (+) of cable to positive pole (+) of PV input connector. Connect negative pole (-) of cable to negative pole (-) of PV input connector.
  • Page 14 PV Module (DC) Connection Recommended Panel Configuration Solar Panel SOLAR INPUT 1 SOLAR INPUT 2 Total Quantity Spec. Input (Min in serial: 11pcs; of panels (reference) Power Max. in serial: 18pcs) - 250Wp 11pcs in serial 11pcs 2750W - Vmp: 36.7Vdc - Imp: 6.818A 11pcs in serial 11pcs...

  • Page 15: Battery Connection

    Battery Connection 7. Battery Connection CAUTION: Before connecting batteries, please install an additional fuse / DC circuit breaker between inverter and batteries. NOTE1: Use only sealed lead acid, vented or Gel battery. Check maximum charging voltage and current before using this inverter. For Lithium iron or NiCad battery, please consult with installer for details.

  • Page 16: Load (Ac Output) Connection

    Load (AC Output) Connection 8. Load (AC Output) Connection CAUTION: To prevent continued supply to the load via the inverter during any mode of operation, an additional disconnection device (circuit breaker) must be installed. WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC connection.
  • Page 17 Load (AC Output) Connection Software Setting Please set up mains output in parameter setting of software. When “Emergency power supply control” is enabled and inverter is working in battery mode, it will cut off AC output but maintain limited power to the EMS port until battery voltage drops down to the setting value in “Battery voltage to cut-off AC output in battery mode”.

  • Page 18: Ems Connection

    EMS Connection 9. EMS Connection This port is available to provide limited power (230V/5A) for emergency lights, etc. 9-1 Interface Configuration There are four pins on this port. However, only Pin 1 (Line) and Pin 4 (Neutral) are useable. Use supplied cables to connect Pin 1 and Pin 4 shown as below. 9-2.

  • Page 19: Generator Connection

    10. Generator Connection Generator connection Connect to generator for power backup when utility is not available and battery is connected. Inverter will trigger generator via dry contact during low battery condition. Once generator is active, solar power will only charge battery and overload protection will be enabled automatically.

  • Page 20: Communication

    11. Communication 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 21: Dry Contact Signal

    12. Dry Contact Signal Dry Contact Signal There is one dry contact available. It can be used to remote control an external generator. 12-1. Electric Parameter Parameter Symbol Max. Unit Relay DC voltage Relay DC current Note: The application of the dry contact should not exceed the electric parameters shown above.
  • Page 22 12. Dry Contact Signal You can set the related parameters in software. Refer to below chart: www.sinetech.co.za...

  • Page 23: Relay Control Port

    13. Relay Control Port Relay Control Port This port is available to provide a power source (230V/8A) to trigger external relay. This function is only valid for Grid-tie with backup II mode. 13-1. Interface Configuration There are four pins on this port. However, only Pin 1 and Pin 4 are useable. Please use supplied cables to connect Pin 1 and Pin 4 shown as below.
  • Page 24 13. Relay Control Port Condition 3: 230V Power on Inverter not active or grid available. 13-3. Application Below the recommended circuit. Single phase inverter MODBUS Relay Control port AC grid AC OUTPUT 1 6 8 8 8 External relay 1 6 8 8 8 Communication www.sinetech.co.za...

  • Page 25: Application With Energy Meter

    14. Application with Energy Meter Application with Energy Meter With Modbus card II and energy meter, hybrid inverter can easily be integrated into an existing household. For details please refer to Modbus card II manual. Note: This application is only valid for Grid-Tie with Backup II mode. Equipped with Modbus card II, hybrid inverter is connected to energy meter with RS485 communication port.

  • Page 26: Commissioning

    15. Commissioning Commissioning Step 1: Check the following requirements before commissioning: • Ensure the inverter is firmly secured • Check if the open circuit DC voltage of PV modules meet requirement (Refer to Section 6) • Check if the utility voltage is approximately in line with the nominal expected value from utility.

  • Page 27: Initial Setup

    16. Initial Setup Initial Setup Before inverter operation, set up “Operation Mode” via software. 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 28 16. Initial Setup SECTION A: Standard: It will list local grid standard. A factory password is required to make any changes. Contact local dealer only when a change to the standard is required. CAUTION: Incorrect settings can cause damage to the unit or render it inoperable.
  • Page 29 16. Initial Setup Allow feeding into the Grid: This option is only valid under Grid-tie and Grid-tie with backup modes. Users can decide if this inverter can feed into 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 30 16. Initial Setup Battery charging source: 1. PV and Grid (Default) PV power will first charge battery. If power is insufficient, grid will charge battery. 2. PV only Only PV power is allowed to charge battery. 3. None No battery charging permitted. Load supply source: When PV power is available: 1 PV, 2...
  • Page 31 16. Initial Setup PV energy supply priority setting: Load, 2 Battery and 3 Grid. PV will first feed the load. Then it will charge battery. Any excess power will be fed into the grid. Battery charging source: 1. PV and Grid: PV power will first charge battery.
  • Page 32 16. Initial Setup Grid-tie with backup (III):  PV energy supply priority setting: Load, 2 Grid and 3 Battery PV power will provide power to the load first. Any excess PV power will be fed into the grid. If feed-in power reaches max setting, the remaining power will charge battery.
  • Page 33 16. Initial Setup When PV power is not available: 1. 1 Grid, 2 Battery: Grid will feed load first. If grid is not available, battery will provide backup. 2. 1 Battery, 2 Grid: Battery will feed the load first. If battery is running low, grid will back up the load.
  • Page 34 16. Initial Setup Working logic under off-peak time: PV energy supply priority: Battery, 2 Load and 3 Grid PV power will charge battery first. If PV power is sufficient, it will provide power to the loads. Any excess PV power will be fed into the grid. NOTE: The max feed-in grid power setting is under in parameter setting.
  • Page 35 16. Initial Setup OFF-GRID Off-Grid (I): Default setting for off-grid mode.  PV energy supply priority setting: Load, 2 Battery PV power will feed the load first and then charge battery. Feed into the grid is not allowed in this mode. The grid relay is connected in Inverter mode. The transfer time from inverter mode to battery mode will be less than 15ms.
  • Page 36 16. Initial Setup When PV power is not available: 1. 1 Grid, 2 Battery Grid will feed the load first. If grid is not available, battery will provide backup. 2. 1 Battery, 2 Grid (Default) Battery will feed the load first. If battery is running low, 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...
  • Page 37 16. Initial Setup Load supply source: When PV power is available: PV, 2 Grid, 3 Battery PV will feed the load first. If insufficient, grid will feed the load. If grid is not available, battery will back up. When PV power is not available: 1.
  • Page 38 16. Initial Setup Battery charging source: 1. PV or Grid: In case of excess PV power after supporting the loads, it will charge battery. In case PV power is not available, grid will charge battery. 2. PV only: PV only is allowed to charge battery. 3.

  • Page 39: Operation

    17. Operation Operation 17-1. Interface The display is controlled by four buttons. NOTICE: To accurately monitor and calculate the energy generation, calibrate the timer of this unit via software once a month. For the detailed calibration, check the user manual of bundled software. 17-2.
  • Page 40 17. Operation Indicates a fault. Indicates fault code or warning code. Indicates date and time, or the date and time users set for querying energy generation. Indicates solar panels. Icon flashing indicates PV input voltage or is out of range. Indicates utility.
  • Page 41 17. Operation 17-3. Button Definition Button Operation Function Enter query menu. Short press. If you are in query menu, press this button to confirm selection or entry. Press and hold the button This inverter is able to provide power to ENTER/ON for approximately 1 second connected...
  • Page 42 17. Operation Setting Display Procedure Input voltage or frequency of AC input  Procedure Frequency, voltage, power or percentage of AC output  Procedure www.sinetech.co.za...
  • Page 43 17. Operation Input voltage or power of PV input.  Procedure Battery voltage or percentage.  Procedure www.sinetech.co.za...
  • Page 44 17. Operation Date and time.  Procedure Today’s or total energy generated.  Procedure www.sinetech.co.za...
  • Page 45 17. Operation 17-5. Operation Mode & Display LCD display for grid-tie with backup mode (I). If you require details of other operation modes with LCD display, please check with your installer. Inverter mode with grid connected This inverter is connected to the grid and working with DC/INV operation. LCD Display Description PV power is sufficient to charge...
  • Page 46 17. Operation This inverter is disabled to generate power to the load. PV and utility are charging battery simultaneously due to insufficient PV power. This inverter is disabled to generate power to the load. PV is feeding power back to the grid. PV power is sufficient to provide power to loads and feed power back to the grid.
  • Page 47 17. Operation Inverter mode without grid connected This inverter is working in DC/INV operation and not connected to the grid. LCD Display Description PV power is sufficient to charge battery and provide power to the load. PV power is generated, but insufficient to support load on its own.
  • Page 48 17. Operation Standby mode : The inverter is working without DC/INV operation and load connected. LCD Display Description This inverter AC output is disabled; if AC output is enabled, an error has occurred on AC output. PV power is sufficient to charge battery. This inverter is blocked from feeding power to the load.

  • Page 49: Charging Management

    18. Charging Management Charging Management Default Charging Parameter Note Value Software adjustable from 10Amps to Charging current 100Amps. Software adjustable from 50Vdc to Floating charging voltage (default) 54.0 Vdc 60Vdc. Max. absorption charging voltage Software adjustable from 50Vdc to 56.0 Vdc (default) 60Vdc.
  • Page 50 18. Charging Management If using sealed lead acid battery, please set up the max charge current according to below formula: The maximum charging current = Battery capacity (Ah) x 0.2 For a 300 Ah battery, the maximum charge current is 300 x 0.2=60 (A). Use at least 50Ah battery because the minimum charge current is 10A.

  • Page 51: Maintenance & Cleaning

    19. Maintenance & Cleaning Maintenance & Cleaning Check the following points to ensure proper operation of your complete solar system at regular intervals. • Ensure all connectors of this inverter are clean. • Before cleaning the solar panels, be sure to turn off PV DC breakers. •...

  • Page 52: Trouble Shooting

    20. Troubleshooting Trouble Shooting When there is no information displayed in the LCD, please check if PV module/battery/grid connection is correctly connected. NOTE: The warning and fault information can be recorded by remote monitoring software. 20-1. Warning List There are 17 situations defined as warnings. When a warning situation occurs, icon will flash and display a warning code.
  • Page 53 20. Troubleshooting 20-2. Fault Reference Codes When a fault occurs, the icon will flash as a reminder. See below fault codes for reference. Situation Solution Fault Fault Event Possible cause Code Bus over voltage Surge 1. Restart the inverter. 2. If the error message persists, contact installer.
  • Page 54 20. Troubleshooting GFCI fault Leakage current 1. Check wires and panels exceeds the limit. which may cause the leakage. 2. If the error message PV ISO fault The resistance persists, contact installer. between PV and ground is too low. INV DC over current Utility fluctuates.

  • Page 55: Specifications

    21. Specifications Specifications MODEL RATED POWER 5000 W PV INPUT (DC) Maximum DC Power 10000 W Nominal DC Voltage 720 VDC Maximum DC Voltage 900 VDC Working DC Voltage Range 200 VDC to 900 VDC Start-up Voltage / Initial Feeding Voltage 250 VDC / 300 VDC MPP Voltage Range 250 VDC to 850 VDC...
  • Page 56 21. Specifications GENERAL PHYSICAL Dimension, D x W x H (mm) 600x460x204.2 Net Weight (kgs) 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 to 90% RH (No condensing) Operating Temperature -10 to 55°C (Power derating above 50°C) Altitude...

  • Page 57: Limited Product Warranty

    22. Limited Product Warranty Limited Product Warranty 2 Years Limited Warranty Sinetech Pty (Ltd) warrants that the Unit will be free from defects for 2 years following the date it was purchased. Please Note: The Limited Warranty is subject to a number of important exclusions and limitations.
  • Page 58 OHY1P4805 Sinetech. 2 Samantha Street, Strijdom Park, Randburg, Johannesburg Tel: (+27) 11 886-7874 (16 lines) Fax: (+27) 11 787 0178 sales@sinetech.co.za www.sinetech.co.za www.sinetech.co.za...

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