OmniPower OHY1P4803 User Manual
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OmniPower OHY1P4803 User Manual

3kw hybrid inverter
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OHY1P4803
3kW Hybrid Inverter
USER MANUAL
V2.2

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  • Page 1 OHY1P4803 3kW Hybrid Inverter USER MANUAL V2.2...

  • Page 2: Table Of Contents

    Table of Contents Table of Contents 1. Introduction ................... 1 2. Important Safety Warning ..............2 3. Unpacking & Overview ................4 3-1. Packing List ..................4 3-2. Product Overview ................4 4. Installation ..................... 5 4-1. Selecting Mounting Location ..............5 4-2.

  • 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 from installer. Unsuitable tools or instruments may cause 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 your package: Inverter unit Software CD Manual USB cable 3-2.

  • 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 onto flammable materials.  Mount on a solid surface  This inverter can emit noise during operation which may be perceived as a nuisance in a living area.
  • Page 8 Installation 1. Drill four holes in the marked Place the unit on the surface and align locations with four screws. the mounting holes with the four screws. 3. Check that the solar inverter is firmly Note: Recommended specs for screws. secured.

  • Page 9: Grid (Utility) Connection

    Grid (Utility) Connection 5. Grid (Utility) Connection 5-1. Preparation Before connecting to AC utility, install a separate AC circuit breaker between inverter and AC utility. This will ensure the inverter can be securely disconnected for maintenance and is fully isolated from the AC input. NOTE1: Although this inverter is equipped with a 250VAC/30A fuse, it’s still necessary to install a separate circuit breaker for safety consideration.
  • Page 10 Grid (Utility) Connection L→LINE (brown or black) →Ground (yellow-green) N→Neutral (blue) Step 5: Make sure the wires are securely connected. Chart 2 The tightening torque is 0.8 N.m. Step 6: For safe operation, please use one additional wire with a ring terminal to connect ground.

  • Page 11: Pv Module (Dc) Connection

    PV Module Connection 6. PV Module (DC) Connection CAUTION: Do NOT connect battery or any other DC source to PV connectors. This will cause inverter damage, which is NOT covered by warranty. CAUTION: Before connecting the PV modules, install a DC circuit breaker or fuse separately between inverter and PV modules.
  • Page 12 PV Module Connection Step 4: Confirm correct polarity of cable from PV modules and 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. Step 5: Make sure the wires are securely connected.

  • Page 13: Battery Connection

    Battery Connection 7. Battery Connection CAUTION: Before connecting to batteries, install a separate DC fuse or circuit breaker between inverter and batteries. NOTE: Only use sealed or vented lead acid or Gel batteries. Please check maximum charging voltage and current when commissioning this inverter. For Lithium iron or NiCad batteries, consult with installer for applicable details.
  • Page 14 Battery Connection To reduce risk of injury, use recommended cable sizes as indicated below: WARNING! It's very important 3KW,3KW Plus for system safety and efficient operation to use appropriate cables for battery connection. Model Nominal Grid Voltage 101/110/120/127 VAC 208/220/230/240 VAC Conductor cross-section (mm www.sinetech.co.za...

  • Page 15: Load (Ac Output) Connection

    Load Connection 8. Load (AC Output) Connection CAUTION: To prevent continued supply to the load from the inverter during any mode of operation, a disconnection device must be installed in the building distribution box WARNING! It's very important for system safety and efficient operation to use the appropriate cable for AC connection.

  • Page 16: Communication

    Communication 9. Communication The inverter is equipped with RS232 and USB 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. Follow below procedure to connect communication wiring and install the software.

  • Page 17: Commissioning

    10. Commissioning 10. Commissioning Step 1: Check the following before commissioning:  Ensure the inverter is firmly secured  Does the open circuit voltage of PV modules meet requirements (Refer to Section 6)  Check if the utility voltage is approximately the same as the nominal expected value ...

  • Page 18: Initial Setup

    11. Initial Setup 11. Initial Setup Before inverter operation, set up “Operation Mode” via software. Follow the steps below very closely. For more details, please check software manual. Step 1: After turning on the inverter and installing the software, please click “Open Monitor” to enter main screen of this software.
  • Page 19 11. Initial Setup inverter is only operated between two working logics based on defined peak time and off-peak time of electricity. Only peak time and off-peak time of electricity are able to be set up for optimized electricity usage. Grid-Tie: PV power only can feed back to the grid. ...
  • Page 20 11. Initial Setup AC output ON/Off Timer: Set up on/off time for AC output of inverter. If setting is 00:00/00:00, this function is disabled. Allow to charge battery: This option is automatically determined by setting in “Charging source”. It cannot be modified here. When “NONE” is selected in the charging source section, this option becomes unchecked as grey text.
  • Page 21 11. Initial Setup Grid-tie with backup  Grid-tie with backup (I) : PV energy supply priority setting: Battery, 2 Load and 3 Grid. PV power will charge battery first, and then provide power to the load. Any excess solar power will be fed into the grid. Battery charging source: 1.
  • Page 22 11. Initial Setup When PV power is not available: 1. 1 Grid, 2 Battery (Default) Grid will provide power to the load first. If grid is not available, battery power will provide backup power. 2. 1 Battery, 2 Grid Battery will provide power to the load first. If battery power is running out, grid will back up the load.
  • Page 23 11. Initial Setup Load supply source: When PV power is available: 1. 1 PV, 2 Battery, 3 Grid PV will provide power to the load first. If power is insufficient, battery will provide power to the load. When battery power is running out or not available, grid will back up the load.
  • Page 24 11. Initial Setup NOTE: The max feed-in grid power setting is available in parameter setting. Please refer to software manual. Battery charging source: 1. PV and Grid: Will charge battery from PV first. If power is insufficient, grid will charge battery. 2.
  • Page 25 11. Initial Setup  Grid-tie with backup (IV): Users are only allowed to set up peak time and off-peak electricity demand. Working logic during peak time: PV energy supply priority: Load, 2 Battery and 3 Grid PV will provide power to the load first. If PV power is sufficient, it will charge battery next.
  • Page 26 11. Initial Setup Working logic during 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. The remaining PV power will be fed to the grid. NOTE: The max feed-in grid power setting is available in parameter setting.
  • Page 27 11. Initial Setup Battery charging source: 1. PV and Grid: Will charge battery from PV power first. If it’s insufficient, grid will charge battery. 2. PV only: Only PV power is allowed to charge battery. 3. None: Neither PV nor grid is allowed to charge the battery Load supply source: When PV power is available: 1.
  • Page 28 11. Initial Setup Grid-Tie Under this operation mode, PV power only feeds-in to the grid. No priority setting is available. Off-Grid Off-Grid (I): Default setting for off-grid mode.  www.sinetech.co.za...
  • Page 29 11. Initial Setup PV energy supply priority setting: Load, 2 Battery PV will provide power to the load first and then charge battery. Feed-in to the grid is not allowed in this mode. The grid relay is connected in Inverter mode. As a result, the transfer time from inverter mode to battery mode will be less than 15ms.
  • Page 30 11. Initial Setup Off-Grid (II)  PV energy supply priority setting: Battery, 2 Load PV power will charge battery first. After battery is fully charged, if there is remaining PV power left, it will provide power to the load. Feed-in to the grid is not allowed under this mode.
  • Page 31 11. Initial Setup When PV power is not available: 1. 1 Grid, 2 Battery: Grid will provide power to the load first. If grid is not available, battery will provide power backup. 2. 1 Battery, 2 Grid: Battery will provide power to the load first. If battery power is running out, grid will back up the load.
  • Page 32 11. Initial Setup Load supply source: When PV power is available: 1 PV, 2 Battery, 3 Grid PV will provide power to the load first. If power is insufficient, battery power will back up the load. Only after battery power has run out and stopped providing the load, will Grid back up the load.

  • Page 33: Operation

    12. Operation 12. Operation 12-1. 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 month. For the detailed calibration, please check the user manual of bundled software.
  • Page 34 12. Operation Indicates PV input voltage or power. Volt: Voltage, KW: Power Indicates battery voltage or percentage. Volt: Voltage, %: Percentage Indicates charging current to battery. Indicates a warning. Indicates a fault. Indicates fault code or warning code. Indicates date and time, or the date and time users set for querying energy generation.

  • Page 35: Button Definition

    12. Operation 12-3. 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 36 12. Operation 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 www.sinetech.co.za...
  • Page 37 12. Operation Input voltage or power of PV input Procedure Enter Enter Enter Down Down  Battery voltage or percentage. Procedure Enter Enter Down Down Enter www.sinetech.co.za...
  • Page 38 12. Operation Date and time.  Procedure Enter Down Enter Enter Down  Today or total energy generated. Procedure Enter Down Enter Enter Down www.sinetech.co.za...
  • Page 39 12. Operation Mode of query energy generated.  Energy generation display of selected day Procedure LCD Display: Energy generation display of selected month Procedure Enter Down Enter Up Down Sets year Enter Flashes Enter Enter Enter Up Down Down Sets month Flashes Returns to main menu Down...

  • Page 40: Operation Mode & Display

    12. Operation LCD Display: 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: 12-5. Operation Mode & Display The following are only available from LCD display for grid-tie with backup mode (I). If you need information on the LCD display of other operation modes, please check with installer.
  • Page 41 12. Operation Inverter mode with grid connected This inverter is connected to grid and working with DC/INV operation. LCD Display Description PV power is sufficient to charge battery, provide power to the load, and feed excess into the grid. PV power is sufficient to charge the battery.
  • Page 42 12. Operation The inverter is disabled to generate power to the load. PV power 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 utility. No battery is connected or battery is not available.
  • Page 43 12. Operation 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 battery and provide power to the load. Utility is out of range. Icon is flashing.
  • Page 44 12. Operation Bypass mode The inverter is working without DC/INV operation and connecting to the loads. LCD Display Description PV power is not available. Utility is charging battery and providing power to the load. Icon is flashing. PV power and battery are not available.
  • Page 45 12. Operation Standby mode: The inverter is working without DC/INV operation and load connected. LCD Display Description The utility is out of range. The inverter is disabled on AC output or AC power output is enabled, but an error occurred on AC output. Only PV power is used to charge battery.

  • Page 46: Charging Management

    13. Charging Management 13. Charging Management Default Charge voltage Notes Values Software adjustable from 5 to 25Amp Max charge current Software adjustable from 50 VDC to 58 Float charge voltage(default) 54.0 Vdc VDC. Max absorption charge Software adjustable from 50 VDC to 56.0 Vdc voltage(default) 58 VDC.
  • Page 47 13. Charging Management For sealed lead acid battery, set up the max charge current according to this formula: The maximum charge current = Battery capacity (Ah) x 0.2 For a 125 Ah battery, the maximum charge current is 125 x 0.2=25 (A). Use at least a 25Ah battery as the settable minimum value of charge current is 5A.

  • Page 48: Applications With Energy Meter

    14. Applications with Energy Meter 14. Applications with Energy Meter With Modbus Card II and energy meter, your hybrid inverter can easily be integrated into a household. For details please refer to Modbus card II manual. For single inverter application: Equipped with Modbus card II, the hybrid inverter is connected to the energy meter via itsRS485 communication port.

  • Page 49: Maintenance & Cleaning

    15. Maintenance & Cleaning 15. Maintenance & Cleaning Check the following points to ensure proper operation of the solar system at regular intervals.  Ensure all connectors of this inverter are clean.  Before cleaning this inverter, be sure to turn off all the breakers [AC breaker, battery breaker / fuse and PV DC breaker / fuse(s) ].

  • Page 50: Trouble Shooting

    16. Troubleshooting 16. Trouble Shooting When there is no information displayed in the LCD, please check if PV modules are correctly connected. NOTE: The warning and fault information can be recorded by remote monitoring software. 16-1. Warning List When a warning situation occurs, icon will flash and the fault code area will display “WR”...

  • Page 51: Fault Reference Codes

    16. Troubleshooting End of battery discharge. Low voltage from excessive discharging. Battery voltage was below 42V. Battery is charging now but has not yet reached 50V. Warning Icon Description (flashing) Overload Overload Over temperature alarm Over temperature No electrical ground Ground loss 16-2.
  • Page 52 16. Troubleshooting Leave inverter to cool to room temperature. If the error message persists, please contact your installer PV input voltage exceeds Check if the open circuit upper threshold voltage of PV modules is above 500VDC. If PV open circuit voltage is below 500VDC and the error message remains, contact your installer.
  • Page 53 16. Troubleshooting PV insulation resistance is Check if the resistance too low between positive and negative poles to the ground is greater than 1MΩ If below 1MΩ contact your installer A difference occurred in the Please disconnect AC readings from the main and breaker first and then secondary controllers the DC breaker.
  • Page 54 16. Troubleshooting Battery disconnected Check if battery cable is connected firmly. If error message persists, please contact your installer. Inverter current is too high Remove excessive loads. for an extended time Then, restart the inverter. Short circuit on inverter Turn off the inverter. output Disconnect AC input circuit breaker first.
  • Page 55 16. Troubleshooting Charger failure Shut down the inverter completely. Restart the inverter to see if it’s ok. If error message persists, please contact your installer. Version mismatch between Shut down the inverter controller board and power completely. board Restart the inverter to see if it’s ok.

  • Page 56: Specifications

    17. Specifications 17. Specifications MODEL 3KW Plus RATED POWER 2000 W 3000 W PV INPUT (DC) Maximum DC Power 2250 W 3200 W 4500 W Nominal DC Voltage 300 VDC 360 VDC Maximum DC Voltage 350 VDC 500 VDC Start-up Voltage / Initial Feeding Voltage 80 VDC / 120 VDC 116 VDC / 150 VDC MPP Voltage Range...
  • Page 57 17. Specifications Nominal Output Voltage 101/110/120/127 VAC 208/220/230/240 VAC Output Frequency 50 Hz / 60 Hz (auto sensing) Output Waveform Pure sine wave Output Power 2000VA/2000W 3000VA/3000W Output Current 19.8A/18.2A/16.7A/15.7A 14.4A/13.6A/13A/12.5A Efficiency (DC to AC) BATTERY & CHARGER Nominal DC Voltage 48 VDC Maximum Battery Discharging Current 65 A...

  • Page 58: Limited Product Warranty

    18. Limited Product Warranty 18. 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 59 OHY1P4803 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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