1. Manuals
  2. Brands
  3. Master Power Manuals
  4. Inverter
  5. Omega ESS 5.5KW
  6. User manual

Master Power Omega ESS 5.5KW User Manual

Energy storage system
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
User Manual
Omega ESS
Energy Storage System
Version: 1.0

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Omega ESS 5.5KW and is the answer not in the manual?

Questions and answers

Related Manuals for Master Power Omega ESS 5.5KW

Summary of Contents for Master Power Omega ESS 5.5KW

  • Page 1 User Manual Omega ESS Energy Storage System 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 ................5 Installation ................... 7 4-1. Selecting Mounting Location............7 4-2. Mounting The System ..............7 Wiring Connection ................13 5-1.

  • Page 3: Introduction

    1. Introduction This energy storage system can provide power to connected loads by utilizing PV power, utility power and battery power and store surplus energy generated from PV solar modules for use when needed. When the sun has set, energy demand is high, or there is a black-out, you can use the energy stored in this system to meet your energy needs at no extra cost.

  • 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! In high temperature environment, the surface 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, disqualified tools may cause 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. To guarantee goods in good condition during transportation, we offer separate packages for inverter and battery unit. Inverter Package You should receive the following items inside of package: Inverter module PV connector...

  • Page 7: Product Overview

    3-2. Product Overview Inverter Module Side view Front view LCD display DC breaker Touchable function buttons Dry contact Power on/off button USB port PV connectors RS-232 port AC output BMS com. port AC input Battery connectors AC breaker Intelligent slot PV breaker...
  • Page 8 Battery Module Side view Front view Power on/off button Battery capacity indicators Battery status indicators RS485 port (BMS com. port) Extension port ID switch Battery connecters DC breaker...

  • Page 9: Installation

    4. Installation 4-1. Selecting Mounting Location Consider the following points to install the energy storage system: Do not mount the inverter on flammable construction materials.  Mount on a solid surface  This energy storage system might make noises during operation which may be ...
  • Page 10 This energy storage system should be installed battery modules first on the bottom and then inverter module on the top. Step 1: Remove side cover of battery module first. Step 2: Fix two mounting brackets on the top and bottom of the battery module separately with three flat-head screws as shown in the chart.
  • Page 11 Step 4: Drill φ8 holes on the remarked wall and insert one nylon plug inside of each hole. Fix two mounting brackets against the wall with screws, four for each bracket. Step 5: If there is one more battery module to stack on, please also remove side cover first.
  • Page 12 Step 8: Put the second battery module on the top of first battery module. Fix two L- shape plates to the first battery module with four round-head screws. Then, fix the second battery module to the wall with four screws. Step 9: Before installing inverter module, remove side cover first.
  • Page 13 Step 11: Drill φ8 holes on the remarked wall. Insert one nylon plug inside of each hole. Fix one mounting bracket against the wall with four screws.
  • Page 14 Step 12: Fix two L-shape plates on the bottom of the inverter module with four flat-head screws. Step 13: Put the inverter module on the top of second battery module. Fix mounting bracket with three flat-head screws. Then, fix two L-shape plates to the second battery module with four round-head screws.

  • Page 15: Wiring Connection

    5. Wiring Connection Before connecting all wires, be sure that side covers of inverter and battery modules are removed. This step should be executed before modules are installed to the wall. 5-1. Grid Connection 5-1-1. Preparation Before connecting to AC utility, please install a separate AC circuit breaker between surge protection device (SPD) and AC utility.

  • Page 16: Pv Module (Dc) Connection

    5-2. PV Module (DC) Connection CAUTION: Before connecting to PV modules, please install separately DC circuit breakers between inverter and PV modules. NOTE1: Please use 600VDC/30A circuit breaker. NOTE2: The overvoltage category of the PV input is II. Please follow the steps below to implement PV module connection: WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable: single crystalline and poly crystalline with class A-rated and CIGS modules.
  • Page 17 Insert striped cable into female terminal and crimp female terminal as shown below. Insert assembled cable into female connector housing as shown below. Insert striped cable into male terminal and crimp male terminal as shown below. Insert assembled cable into male connector housing as shown below. Then, use spanner to screw pressure dome tightly to female connector and male connector as shown below.
  • Page 18 Recommended Panel Configuration CAUTION: Do NOT touch the inverter to avoid electric shock. When PV modules are exposed to sunlight, it may generate DC voltage in the inverter. Solar Panel SOLAR INPUT 1 SOLAR INPUT 2 Total Q'ty of Spec. Input (Min in serial: 6pcs;...

  • Page 19: Battery Connection

    5-3. Battery Connection CAUTION: Before connecting to battery modules, please disconnect the DC breaker between inverter and batteries. Step 1: Use supplied two battery cables. Follow the polarity of battery printed near the battery terminal! Simply plug battery cable to battery terminals on inverter module and battery module as shown in the chart.
  • Page 20 Step 5: If there is second battery module to connect, use supplied battery cable inside of battery module package to connect the first battery module and second battery module. Follow the polarity of battery printed near the battery terminal! Plug battery cable to battery terminals on first battery module and second battery module as shown in the chart.

  • Page 21: Load (Ac Output) Connection

    5-4. Load (AC Output) Connection CAUTION: To prevent extra supply to the load via the inverter during any mode of operation, an additional disconnection device should be placed on in the building wiring installation. WARNING! For safety and efficiency, it's very important to use appropriate cable for AC connection.

  • Page 22: Communication

    6. Communication 6-1. Communication Connection The inverter is equipped with USB and RS-232 ports and a slot for alternative communication interfaces in order to communicate with a PC via corresponding software. This intelligent slot is suitable to install with SNMP card or Modbus card. Follow the procedure below to connect communication wiring and install the software.

  • Page 23: Dry Contact Connection

    6-2. Dry Contact Connection There is one dry contact available. It could be used to remote control for external generator. For Dry contact port, please remove insulation sleeve 8 mm for three conductors and insert three cables into ports. Electric Parameter Parameter Symbol Max.

  • Page 24: Commissioning

    7. 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 the requirement (Refer to  Section 5.2) Check if the voltage of the open circuit utility is approximately as same as the ...

  • Page 25: Initial Setup By Using Monitoring Software

    8. Initial Setup by using monitoring software Before inverter starts to operate, it’s required to set up “Operation Mode” via software. Please strictly follow the steps below to set up. For more details, please refer to software manual. Step 1: After turning on the inverter and installing the software, please click “Open Monitor”...
  • Page 26 SECTION A: Standard: It will list local grid standard. To make any modification, you’re requested to have factory password. Please check local dealer only when this standard change is requested. CAUTION: Wrong setting could cause damage to the unit or not working. Nominal Output Voltage: 230V.
  • Page 27 Allow battery to discharge when PV is available: This option is automatically determined by setting in “Load supply source (PV is available)”. When “Battery” is higher in priority than “Grid” in Load supply source (PV is available), this option is selected in default. Under Grid-tie, this option is invalid.
  • Page 28 Load supply source: When PV power is available: 1 PV, 2 Grid, 3 Battery If battery is not fully charged, PV power will charge battery first. And remaining PV power will provide power to the load. If it’s not sufficient, grid will provide power to the load.
  • Page 29 3. None It is not allowed to charge battery no matter it’s PV power or grid. Load supply source: When PV power is available: 1. 1 PV, 2 Battery, 3 Grid PV power will provide power to the load first. If it’s not sufficient, battery will provide power to the load.
  • Page 30 Battery charging source: 1. PV and Grid: It’s allowed to charge battery from PV power first. If it’s not sufficient, grid will charge battery. 2. PV only: PV power is only allowed to charge battery. 3. None: It is not allowed to charge battery no matter it’s PV power or grid. Load supply source: When PV power is available: 1.
  • Page 31 battery next. If there is remaining PV power left, it will feed-in to the grid. Feed-in to the grid is disabled in default. Battery charging source: PV only Only after PV power fully supports the load, the remaining PV power is allowed to charge battery during peak time.
  • Page 32 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 in this mode. At the same time, the grid relay is connected in Inverter mode.
  • Page 33 2. 1 Battery, 2 Grid (Default) Battery power will provide power to the load first. If 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.
  • Page 34 2. 1 Battery, 2 Grid: Battery power will provide power to the load first. If 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.

  • Page 35: Operation

    battery power will provide power backup. 2. 1 Battery, 2 Grid: Battery power will provide power to the load first. If 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.

  • Page 36: Lcd Display Icons

    LCD Display Icons Icon Function description Input Source Information Indicates the AC input voltage and frequency. Indicates the PV voltage, current and power. Indicates the battery voltage, charging stage, configured battery parameters, charging or discharging current. Configuration Program and Fault Information Indicates the setting programs.
  • Page 37 When battery is charging, it will present battery charging status. Status Battery voltage LCD Display <2V/cell 4 bars will flash in turns. Bottom bar will be on and the other 2 ~ 2.083V/cell three bars will flash in turns. C.C. mode Bottom two bars will be on and the C.V.
  • Page 38 Indicates setting program 03 “Output source priority” is selected as “SUB”. Indicates setting program 03 “Output source priority” is selected as “SBU”. AC Input Voltage Range Setting Display Indicates setting program 2B is selected as “ ”. The acceptable AC input voltage range will be within 90-280VAC.

  • Page 39: Lcd Setting

    LCD Setting After pressing and holding “ ” button for 3 seconds, the unit will enter the setting mode. Press “ ” or “ ” button to select setting programs. Press “ ” button to confirm you selection or “ ”...
  • Page 40 Mode 6 PV priority: Grid-tied only Grid-tied only Mode 7 PV priority: Off-Grid Load >> Battery Solar and Utility (default) Solar energy and AC will charge battery together. Battery is charged by Solar energy only. Charger source priority Charger is disabled. SBU (default) PV>>Battery>>Grid Load supply...
  • Page 41 Charge enabled (default) Charger disabled AC Charger Feed-in disabled Feed-in enabled (default) Feed-in to the grid function Battery feed-in enabled Battery feed-in disabled (default) Battery feed-in to the grid 00 (default) Increment of each click is 1 hour. AC charger ON timer: Set up time to turn on AC charger...
  • Page 42 Available options 08 (default) 01: AS4777 02: dk 03: RD1663 04: G83 05: Taiwan 06: USH 07: USL 08: VDE4105 (default) Regulation 09: Korea standard (*It’s requested 10: Hongsun enter password) 11: Sweden 12: Changyang 13: JET50 14: JET60 15: Denmark 16: EN50438 17: En50438Jak 18: G99...
  • Page 43 60A (default) The setting range is from 5A to 100A. Increment of Max. AC charging each click is 50A. current 56.0V (default) The setting range is from 50V to 62V. Increment of each click is 0.1 V. Bulk charging voltage 54V (default) The setting range is from 50V to 62V.
  • Page 44 Enabled Disabled (default) Generator compatible 60 seconds for sleep The selectable options are (default) 00, 01 (30s), 02(60s), 10(300s) and 20(600s). Sleep timer for If “00” is selected, LCD LCD backlight backlight is always on. Alarm on (default) Alarm off Alarm control 00 (default) The setting range is from...
  • Page 45 16 (default) The setting range is from 20 to 99. Real time setting – Year RGB LED Enable (Default) RGB LED Disable On/Off control for RGB LED Normal (default) Brightness of RGB High Normal (default) Lighting speed of RGB LED High LED on (default) Scrolling...
  • Page 46 Orange (default) Pink Yellow Green Background color of RGB LED Blue...
  • Page 47 USB Function Setting There are two USB function setting available, upgrade firmware and export data log. Please follow below procedure to operate USB function setting. Procedure LCD Screen Step 1: Insert an OTG USB disk into the USB port. If USB disk is detected, LCD will show .

  • Page 48: Operating Mode Description

    If any error occurs, error code will only show 3 seconds. After 3 seconds, it will automatically return to display screen. Operating Mode Description Operation mode Description LCD display Charging by utility and PV energy. Charging by utility. Standby mode Note: *Standby mode: No output is...
  • Page 49 Operation mode Description LCD display Charging by utility and PV energy. Charging by utility. Fault mode Note: *Fault mode: Errors are caused by PV energy and inside circuit error utility can charge or external reasons Charging by PV energy. batteries. such as over temperature, output short circuited and...
  • Page 50 Operation mode Description LCD display Charging by utility and PV energy. Charging by utility. The unit will provide output power from the Line Mode mains. It will also charge the battery at line mode. If “SUB” (solar first) is selected as output source priority and solar energy is not sufficient to provide the load, solar energy and the utility will provide the loads and...
  • Page 51 Operation mode Description LCD display If either “SUB” (solar first) or “SBU” is selected as output source priority and battery is not connected, solar energy and the utility will provide the loads. The unit will provide output power from the Line Mode mains.
  • Page 52 Operation mode Description LCD display PV energy will supply power to the loads and charge battery at the same time. No utility is available. Power from battery only. The unit will provide output Battery Mode power from battery and/or PV power.

  • Page 53: Select Displays

    Select Displays Selectable information LCD display Input Voltage=230V, Input frequency=50Hz Utility voltage/ Utility frequency PV1 voltage=260V, PV1 current=2.5A, PV1 power=500W PV voltage/ PV current/ PV Default power Display (PV1 and PV2 PV2 voltage=260V, PV2 current=2.5A, Screen switch every 5 PV2 power=500W seconds) Battery voltage=50.4V, Bulk charging voltage=56.4V, Charging current=20A...
  • Page 54 Battery voltage=50.4V, Floating charging voltage=54.0V, Charging current=20A Battery voltage, charging stage/ Configured battery Battery voltage=50.4V, Low DC cut-off voltage=44.0V, parameters/ charging current=0A Charging current Default Display Screen Output voltage=230V, Output frequency=60Hz Output voltage, load in Watt / Output Load in Watt=400W, Output frequency=60 Hz frequency...
  • Page 55 Real date Dec 14, 2020. Default Display Real date. Screen Real time 11:31 Real time. PV energy generated today = 0Wh. PV energy generated today PV energy generated this month = 0.5kWh. PV energy generated this month PV energy generated this year = 0.5kWh. PV energy generated this year...
  • Page 56 Total PV energy generated = 0.5kWh. Total PV energy generated Battery pack numbers = 3, battery group numbers = 1 Battery pack numbers & Battery group numbers Main CPU version 00.41. Main CPU version checking. Secondary CPU version 00.44. Secondary CPU version checking.

  • Page 57: Maintenance & Cleaning

    Maintenance & Cleaning Check the following points to ensure proper operation of the 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. ...

  • Page 58: Trouble Shooting

    11. Trouble Shooting When there is no information displaying 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. 11-1. Fault code reference When a fault occurs, the icon will flash as a reminder.
  • Page 59 Situation Solution Code Fault Event Leakage current exceeds the The ground voltage is too high. allowable range Please disconnect AC breaker first and then DC breaker. Check if grounding is connected properly after LCD screen completely shuts down. If grounding is correctly connected, turn on DC brearker.
  • Page 60 Situation Solution Code Fault Event Short circuited on inverter output Turn off the inverter. Disconnect AC circuit breaker first. Then, disconnect DC circuit breaker and then disconnect the loads. Please check if load circuit is ok. After removing the error, turn on the PV DC breaker and battery breaker.

  • Page 61: Warning Reference Codes

    11-2. Warning Reference Codes When a warning event occurs, the icon will flash as a reminder. 11-2-1. General warning codes Situation Solution Code Warning Event Restart the unit again. If problem still exists, Internal EEPROM failed please contact your installer. Battery low Recharge or replace the battery.

  • Page 62: Specifications

    Specifications MODEL 5.5KW Maximum PV Input Power 6500 W Rated Output Power 5500 W Maximum Charging Power 2880 W PV INPUT (DC) Nominal DC Voltage / Maximum DC Voltage 360 VDC / 500 VDC Start-up Voltage / Initial Feeding Voltage 116 VDC / 150 VDC MPP Voltage Range 120 VDC ~ 450 VDC...

  • Page 63: Appendix I: The Wi-Fi Operation Guide

    Appendix I: The Wi-Fi Operation Guide Introduction Wi-Fi module can enable wireless communication between off-grid inverters and monitoring platform. Users have complete and remote monitoring and controlling experience for inverters when combining Wi-Fi module with SolarPower APP, available for both iOS and Android based device. All data loggers and parameters are saved in iCloud. The major functions of this APP: Delivers device status during normal operation.
  • Page 64 2-2. Initial Setup Step 1: Registration at first time After the installation, please tap the shortcut icon to access the APP on your mobile screen. In the screen, tap “Register” to access “User Registration” page. Fill out all required information accordingly. You can scan the Wi-Fi Module PN by tapping icon .
  • Page 65 Step 2: Local Wi-Fi Network Configuration Now, you are in “Wi-Fi Config” page. There are detailed setup procedure listed in “How to connect?” section and you may follow it to connect Wi-Fi. Enter the “SettingsWi-Fi” and select connected Wi-Fi name. The connected Wi-Fi name is the same to your Wi-Fi PN number and enter default password “12345678”.
  • Page 66 Step 4: Tap “Confirm” to complete the Wi-Fi configuration between the Wi-Fi Module and the Internet. If the connection fails, please repeat Step 2 and 3. Step 5: Diagnose Function If the module is not monitoring properly, please tap “ ”...

  • Page 67: Solarpower App Operation

    2-3. Login and APP Main Function After finishing the registration and local Wi-Fi configuration, enter registered name and password to login. Note: Tick “Remember Me” for your login convenience afterwards. 3. SolarPower APP Operation 3-1. Overview After login is successfully, you can access “Overview” page to have overview of your monitoring devices, including operation status (normal, offline, alarm, and fault) as below diagram.
  • Page 68 3-2. Devices Tap the icon , you can enter Device List page. You can review all of the devices in “Device List”. You also can add or delete device in this page. Add device Delete device icon on the top right corner and enter part number by scanning QR code to add device.
  • Page 69 3-3. ME In ME page, users can modify “My information”, including【User’s Photo】,【Account security】, 【About】, 【Clear cache】 and【Log-out】, shown as below diagrams. 3-4. Device List In Device List page, you can pull down to refresh the device information and then tap any device you want to check up for its real-time status and related information as well as to change parameter settings.
  • Page 70 【Battery Mode】Inverter will power the load from the battery with or without PV power. Only PV power can charge battery at this mode. Device Alarm and Name Modification In this page, tap the icon on the top right corner to enter the device alarm page. Then, you can review alarm history and detailed information.
  • Page 71 【Basic Information】displays basic information of the inverter, including AC voltage, AC frequency, PV input voltage, Battery voltage, Battery capacity, Charging current, Discharging current, Output voltage, Output frequency, Output apparent power, Output active power and Load percent. Please slide up to see more basic information. 【Production Information】displays Model type (Inverter type), Main CPU version, Bluetooth CPU version and secondary CPU version.
  • Page 72 Parameter setting list: Item Description Output Source Priority Output source priority selection Input Voltage Range Input voltage range selection Output Setting AC Output Rating Voltage To set output rating voltage AC Output Rating To set output rating frequency Frequency Battery Type Select connected battery type Battery Cut-off Voltage Set battery cut-off voltage...
  • Page 73 Item Description Solar Supply Set solar power as priority to charge the battery or to Priority power the load. Reset PV If clicked, PV energy storage data will be reset. Energy Storage Start Time For The setting range of start charging time for AC Enable AC charger is from 00:00 to 23:00.

Table of Contents