ABOUT THIS MANUAL Purpose This manual describes the assembly, installation, operation and troubleshooting of this unit. Please read this manual carefully before installations and operations. Keep this manual for future reference. Scope This manual provides safety and installation guidelines as well as information on tools and wiring. SAFETY INSTRUCTIONS WARNING: This chapter contains important safety and operating instructions.
INTRODUCTION This is a multi-function inverter/charger, combining functions of inverter, MPPT solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD display offers user-configurable and easy-accessible button operation such as battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.
Product Overview 4KVA/5KVA single model 4KVA/5KVA parallel model 1-3KVA model 1. LCD display 2. Status indicator NOTE: For parallel model installation and operation, 3. Charging indicator please check separate parallel installation guide for 4. Fault indicator the details. 5. Function buttons 6.
INSTALLATION Unpacking and Inspection 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: The unit x 1 User manual x 1 Communication cable x 1 ...
Install the unit by screwing three screws. It’s recommended to use M4 or M5 screws. 1-3KVA 24V, 1KVA/3KVA 48V model 2-3KVA 24V/48V Plus, 4-5KVA 48V model Battery Connection CAUTION: For safety operation and regulation compliance, it’s requested to install a separate DC over-current protector or disconnect device between battery and inverter.
Page 8
Please follow below steps to implement battery connection: 1. Assemble battery ring terminal based on recommended battery cable and terminal size. 2. Connect all battery packs as units requires. It’s suggested to connect at least 100Ah capacity battery for 1-3KVA model and at least 200Ah capacity battery for 4KVA/5KVA model. NOTE: Please only use sealed lead acid battery or sealed GEL/AGM lead-acid battery.
AC Input/Output Connection CAUTION!! Before connecting to AC input power source, please install a separate AC breaker between inverter and AC input power source. This will ensure the inverter can be securely disconnected during maintenance and fully protected from over current of AC input. The recommended spec of AC breaker is 10A for 1KVA, 20A for 2KVA, 32A for 3KVA, 40A for 4KVA and 50A for 5KVA.
5. Make sure the wires are securely connected. CAUTION: Important Be sure to connect AC wires with correct polarity. If L and N wires are connected reversely, it may cause utility short-circuited when these inverters are worked in parallel operation. CAUTION: Appliances such as air conditioner are required at least 2~3 minutes to restart because it’s required to have enough time to balance refrigerant gas inside of circuits.
PV Module Selection: When selecting proper PV modules, please be sure to consider below parameters: 1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter. 2. Open circuit Voltage (Voc) of PV modules should be higher than min. battery voltage. Solar Charging Mode 1KVA 24V 2KVA 24V...
Communication Connection Please use supplied communication cable to connect to inverter and PC. Insert bundled CD into a computer and follow on-screen instruction to install the monitoring software. For the detailed software operation, please check user manual of software inside of CD. Dry Contact Signal There is one dry contact (3A/250VAC) available on the rear panel.
OPERATION Power ON/OFF Once the unit has been properly installed and the batteries are connected well, simply press On/Off switch (located on the button of the case) to turn on the unit. Operation and Display Panel The operation and display panel, shown in below chart, is on the front panel of the inverter. It includes three indicators, four function keys and a LCD display, indicating the operating status and input/output power information.
LCD Display Icons Icon Function description Input Source Information Indicates the AC input. Indicates the PV input Indicate input voltage, input frequency, PV voltage, battery voltage and charger current. Configuration Program and Fault Information Indicates the setting programs. Indicates the warning and fault codes. Warning: flashing with warning code.
LCD Setting After pressing and holding ENTER button for 3 seconds, the unit will enter setting mode. Press “UP” or “DOWN” button to select setting programs. And then, press “ENTER” button to confirm the selection or ESC button to exit. Setting Programs: Program Description...
Page 17
10A (Not available for 2-3KVA 24V Plus) 60A (default) Available options in 4K/5K model 100A 110A 120A Appliances (default) If selected, acceptable AC input voltage range will be within 90-280VAC. AC input voltage range If selected, acceptable AC input voltage range will be within 170-280VAC.
Page 18
Restart disable Restart enable (default) Auto restart when over temperature occurs 110V 120V (default) Output voltage (only available for 120Vac models) 50Hz (default) 60Hz Output frequency Available options in 1KVA 24V and 2KVA 24V Plus 120Vac model: 20A(default): Available options in 2-3KVA 24V and 2-3KVA 24V Plus models: 30A (default) Available options in 1KVA/3KVA 48V and 2-3KVA 48V Plus models:...
Page 19
Available options in 24V models: 22.0V 22.5V 23.0V (default) 23.5V 24.0V 24.5V 25.0V 25.5V Setting voltage point back to utility source when selecting “SBU priority” or Available options in 48V models: “Solar first” in program 01. 46V (default) Available options in 24V models: Battery fully charged Setting voltage point back 24.5V...
Page 20
26.5V 27V (default) 27.5V 28.5V Available options in 48V models: Battery fully charged 54V (default) If this inverter/charger is working in Line, Standby or Fault mode, charger source can be programmed as below: Solar first Solar energy will charge battery as first priority.
Page 21
Solar and Utility (Only available for Solar energy and utility will charge 4KVA/5KVA model) battery at the same time. Only Solar Solar energy will be the only charger source no matter utility is available or not. If this inverter/charger is working in Battery mode or Power saving mode, only solar energy can charge battery.
Page 22
If self-defined is selected in program 5, this program can be set up. Setting range is from 24.0V to 29.2V for 24V model and 48.0V to 58.4V for 48V model. Increment of each click is 0.1V. 24V model default to 27.0V 48V model default setting: 54.0V Floating charging voltage If self-defined is selected in program 5, this program can be...
Display Setting The LCD display information will be switched in turns by pressing “UP” or “DOWN” key. The selectable input voltage, input frequency, PV voltage, MPPT charging current, information is switched as below order: MPPT charging power, battery voltage, output voltage, output frequency, load percentage, load in VA, load in Watt, DC discharging current, main CPU Version and second CPU Version.
Page 24
Battery voltage=25.5V, discharging current=1A Battery voltage/ DC discharging current Output frequency=50Hz Output frequency Load percent=70% Load percentage When connected load is lower than 1kVA, load in VA will present xxxVA like below chart. Load in VA When load is larger than 1kVA (≧1KVA), load in VA will present x.xkVA like below chart.
Page 25
When load is lower than 1kW, load in W will present xxxW like below chart. Load in Watt When load is larger than 1kW (≧1KW), load in W will present x.xkW like below chart. Main CPU version 00014.04 Main CPU version checking Secondary CPU version 00003.03 Secondary CPU version checking...
Operating Mode Description Operation mode Description LCD display Charging by utility. Standby mode / Power saving mode Note: *Standby mode: The inverter is Charging by PV energy. No output is supplied by the not turned on yet but at this unit but it still can charge time, the inverter can charge batteries.
Power from battery and PV energy. The unit will provide output Battery Mode power from battery and PV power. Power from battery only. Fault Reference Code Fault Code Fault Event Icon on Fan is locked when inverter is off. Over temperature Battery voltage is too high Battery voltage is too low Output short circuited or over temperature is detected...
Warning Indicator Warning Warning Event Audible Alarm Icon flashing Code Fan is locked when Beep three times every inverter is on. second Battery is over-charged Beep once every second Low battery Beep once every second Overload Beep once every 0.5 second Output power derating Beep twice every 3 seconds Solar charger stops due...
SPECIFICATIONS Table 1 Line Mode Specifications 1KVA 24V 2KVA 24V Plus 2KVA 24V 3KVA 24V Plus 4KVA INVERTER MODEL 3KVA 24V 2KVA 48V Plus 5KVA 1KVA 48V 3KVA 48V Plus 3KVA 48V Input Voltage Waveform Sinusoidal (utility or generator) Nominal Input Voltage 120Vac or 230Vac 95Vac±...
Page 30
Table 2 Inverter Mode Specifications 1KVA 24V 1KVA 48V 2KVA 24V 3KVA 48V 4KVA INVERTER MODEL 3KVA 24V 2KVA 48V Plus 5KVA 2KVA 24V Plus 3KVA 48V Plus 3KVA 24V Plus 1KVA/0.8KW 1KVA/1KW 4KVA/3.2KW Rated Output Power 2KVA/1.6KW 2KVA/1.6KW 5KVA/4KW 3KVA/2.4KW 3KVA/2.4KW Pure Sine Wave...
Page 31
Table 3 Charge Mode Specifications Utility Charging Mode 2KVA 24V 1KVA 48V 1KVA 24V 3KVA 24V 2KVA 48V 3KVA 48V 4KVA INVERTER MODEL 2KVA 24V 2KVA 24V Plus Plus 120Vac 2KVA 48V Plus 5KVA Plus 120Vac 3KVA 24V Plus 3KVA 48V Plus 2/10A/ Charging Current (UPS) 10/20A...
Page 32
Joint Utility and Solar Charging (Only available for 4KVA and 5KVA model) Max Charging Current 120Amp Default Charging Current 60Amp Table 4 General Specifications 2KVA 24V Plus INVERTER 1KVA 24V 3KVA 24V 3KVA 24V Plus 2KVA 24V 4KVA 5KVA MODEL 1KVA 48V 3KVA 48V 2KVA 48V Plus...
TROUBLE SHOOTING Problem LCD/LED/Buzzer Explanation / Possible cause What to do Unit shuts down LCD/LEDs and buzzer automatically will be active for 3 The battery voltage is too low 1. Re-charge battery. during startup seconds and then (<1.91V/Cell) 2. Replace battery. process.