User Manual 1KVA-5KVA INVERTER / CHARGER Version: 1.
Table Of Contents ABOUT THIS MANUAL ..................................................................................................................................... 1 Purpose ............................................................................................................................................................ 1 Scope ...............................................................................................................................................................
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. Read and keep this manual for future reference. 1.
INTRODUCTION This is a multi-function inverter/charger, combining functions of inverter, 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 1KVA model 4KVA/5KVA parallel model 1. LCD display 2. Status indicator 3. Charging indicator 4. Fault indicator 2KVA/3KVA model NOTE: For parallel model installation and operation, please check separate parallel installation guide for the details. 5. Function buttons 6. Power on/off switch 7. AC input 8. AC output 9. PV input 10. Battery input 11. Circuit breaker 12. RS232 communication port 13. Parallel communication cable (only for parallel model) 14.
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 Software CD x 1 Preparation Before connecting all wirings, please take off bottom cover by removing two screws as shown below.
Install the unit by screwing three screws. 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. It may not be requested to have a disconnect device in some applications, however, it’s still requested to have over-current protection installed. Please refer to typical amperage in below table as required fuse or breaker size.
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. 3. Insert the ring terminal of battery cable flatly into battery connector of inverter and make sure the bolts are tightened with torque of 2-3 Nm. Make sure polarity at both the battery and the inverter/charge is correctly connected and ring terminals are tightly screwed to the battery terminals.
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. CAUTION!! There are two terminal blocks with “IN” and “OUT” markings.
WARNING: Be sure that AC power source is disconnected before attempting to hardwire it to the unit. 4. Then, insert AC output wires according to polarities indicated on terminal block and tighten terminal screws. Be sure to connect PE protective conductor ( ) first. →Ground (yellow-green) L→LINE (brown or black) N→Neutral (blue) 1KVA 2KVA~ 5KVA 5. Make sure the wires are securely connected. CAUTION: Important Be sure to connect AC wires with correct polarity.
PV Connection (Only apply for the model with solar charger) CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter and PV modules. WARNING! All wiring must be performed by a qualified personnel. WARNING! It's very important for system safety and efficient operation to use appropriate cable for PV module connection. To reduce risk of injury, please use the proper recommended cable size as below. Typical Amperage Gauge Torque Value 50A 8 AWG 1.4~1.
Maximum Power (Pmax) Max. Power Voltage Vmpp(V) Max. Power Current Impp(A) Open Circuit Voltage Voc(V) Short Circuit Current Isc(A) 260W 30.9V 8.42A 37.7V 8.89A Max. PV module numbers in series 1 30.9 x 1 ≒ 30 ~ 32 PV module numbers in parallel 6 50 A / 8.42 Total PV module numbers 1x6=6 Maximum PV module numbers in Series: 1 PV module numbers in Parallel: 6 Total PV module numbers: 1 x 6 = 6 Take 4K/5K model inverter as an example to select proper PV module.
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. It could be used to deliver signal to external device when battery voltage reaches warning level.
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: Fault: flashing with warning code.
In battery mode, it will present battery capacity. Load Percentage Battery Voltage LCD Display < 1.717V/cell 1.717V/cell ~ 1.8V/cell Load >50% 1.8 ~ 1.883V/cell > 1.883 V/cell < 1.817V/cell 1.817V/cell ~ 1.9V/cell 50%> Load > 20% 1.9 ~ 1.983V/cell > 1.983 < 1.867V/cell 1.867V/cell ~ 1.95V/cell Load < 20% 1.95 ~ 2.033V/cell > 2.033 Load Information Indicates overload. Indicates the load level by 0-24%, 25-50%, 50-74% and 75-100%.
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 Selectable option Escape 00 Exit setting mode Solar energy provides power to the loads as first priority.
50A (default) Available options only for 4K/5K model 60A 70A 80A 90A 100A 110A Appliances (default) If selected, acceptable AC input voltage range will be within 03 AC input voltage range 90-280VAC. UPS If selected, acceptable AC input voltage range will be within 170-280VAC. 04 Power saving mode enable/disable Saving mode disable If disabled, no matter connected load (default) is low or high, the on/off status of inverter output will not be effected.
Available options in 1K model: 10A 20A (default) Available options in 2K/3K model: 20A Maximum utility charging current 11 Note: If setting value in program 02 is smaller than that in program in 11, the inverter will apply charging current from program 02 for utility charger.
24.0V 24.5V 25.0V 25.5V Available options in 4K/5K model: 44V 45V 46V (default) 47V 48V 49V 50V 51V Available options in 1K model: Setting voltage point back 13 to battery mode when Battery fully charged 12.0V 12.3V 12.5V 12.8V 13.0V 13.3V 13.5V (default) 13.8V 14.0V selecting “SBU priority” or “Solar first” in program 01.
14.3V 14.5V Available options in 2K/3K model: Setting voltage point back 13 Battery fully charged 24V 24.5V 25V 25.5V 26V 26.5V 27V (default) 27.5V 28V 28.5V 29V to battery mode when selecting “SBU priority” or “Solar first” in program 01.
55V 56V 57V 58V 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. Utility will charge battery only when solar energy is not available. Utility first Utility will charge battery as first priority. Solar energy will charge battery 16 Charger source priority: only when utility power is not To configure charger available.
Overload bypass: When enabled, the unit will transfer to line mode if overload occurs in battery mode. Bypass disable (default) Record enable 25 Bypass enable Record disable (default) Record Fault code 1KVA default setting: 14.1V 2K/3KVA default setting: 28.2V 26 Bulk charging voltage (C.V voltage) 4K/5KVA default setting: 56.4V If self-defined is selected in program 5, this program can be set up. Setting range is from 12.0V to 14.6V for 1K model, 24.0V to 29.2V for 2K/3K model and 48.
1KVA default setting: 10.5V 2K/3KVA default setting: 21.0V 29 Low DC cut-off voltage 4K/5KVA default setting: 42.0V If self-defined is selected in program 5, this program can be set up. Setting range is from 10.0V to 12.0V for 1K model, 20.0V to 24.0V for 2K/3K model and 40.0V to 48.0V for 4K/5K model. Increment of each click is 0.1V.
Display Setting The LCD display information will be switched in turns by pressing “UP” or “DOWN” key. The selectable information is switched as below order: input voltage, input frequency, PV voltage, charging current, battery voltage, output voltage, output frequency, load percentage, load in Watt, load in VA, load in Watt, DC discharging current, main CPU Version and second CPU Version.
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. 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.
Secondary CPU version 00003.03 Secondary CPU version checking Operating Mode Description Operation mode Description LCD display Charging by utility and PV energy. Standby mode / Power saving mode Charging by utility. Note: *Standby mode: The inverter is not turned on yet but at this No output is supplied by the time, the inverter can charge unit but it still can charge battery without AC output. batteries. Charging by PV energy.
LCD display No charging. Operation mode Description Fault mode PV energy and utility can Note: charge batteries. *Fault mode: Errors are caused by inside circuit error or external reasons such as over temperature, output short circuited and so on. Utility can power loads when the unit starts up without Power from utility battery. (Only available in 4K/5K model with single operation) Charging by utility and PV energy. The unit will provide output Line Mode power from the mains.
Fault Reference Code Fault Code Fault Event 01 Fan is locked when inverter is off. 02 Over temperature 03 Battery voltage is too high 04 Battery voltage is too low 05 06 Icon on Output short circuited or over temperature is detected by internal converter components. Output voltage is abnormal. (For 1K/2K/3K model) Output voltage is too high.
SPECIFICATIONS Table 1 Line Mode Specifications INVERTER MODEL 1KVA 2KVA Input Voltage Waveform 3KVA 4KVA 5KVA Sinusoidal (utility or generator) Nominal Input Voltage 230Vac 170Vac± 7V (UPS); Low Loss Voltage 90Vac± 7V (Appliances) 180Vac± 7V (UPS); Low Loss Return Voltage 100Vac± 7V (Appliances) High Loss Voltage 280Vac± 7V High Loss Return Voltage 270Vac± 7V Max AC Input Voltage 300Vac Nominal Input Frequency 50Hz / 60Hz (Auto detection) Low Loss Frequency 40± 1Hz Low Loss Return F
Table 2 Inverter Mode Specifications INVERTER MODEL Rated Output Power 1KVA 2KVA 1KVA/0.8KW 3KVA 2KVA/1.6KW 3KVA/2.4KW 4KVA 4KVA/3.2KW Output Voltage Waveform Pure Sine Wave Output Voltage Regulation 230Vac± 5% Output Frequency 50Hz Peak Efficiency 90% Overload Protection 5KVA/4KW 5s@≥150% load; 10s@110%~150% load 2* rated power for 5 seconds Surge Capacity Nominal DC Input Voltage 5KVA 12Vdc 24Vdc 48Vdc 11.5Vdc 23.0Vdc 46.0Vdc @ load < 20% 11.0Vdc 22.0Vdc 44.
Table 3 Charge Mode Specifications INVERTER MODEL 1KVA 2KVA 3KVA Charging Algorithm 4KVA 5KVA 3-Step Utility Charging Mode AC Charging Current Bulk Charging Voltage Flooded Battery AGM / Gel Battery Floating Charging Voltage 20/30Amp 10/20Amp 2/10/20/30/40/50/60Amp (@VI/P=230Vac) (@VI/P=230Vac) 14.6 29.2 58.4 14.1 28.2 56.4 13.5Vdc 27Vdc 54Vdc Battery Voltage, per cell Charging Current, % 2.43Vdc (2.35Vdc) Voltage 2.
TROUBLE SHOOTING Problem Unit shuts down automatically during startup process. No response after power on. Mains exist but the unit works in battery mode. When the unit is turned on, internal relay is switched on and off repeatedly. LCD/LED/Buzzer Explanation / Possible cause LCD/LEDs and buzzer will be active for 3 seconds and then complete off. The battery voltage is too low (<1.91V/Cell) 1. Re-charge battery. 2. Replace battery. No indication. 1. The battery voltage is far too low. (<1.
Appendix: Approximate Back-up Time Table Model 1KVA Model 2KVA 3KVA Model 4KVA Load (VA) Backup Time @ 12Vdc 100Ah (min) Backup Time @ 12Vdc 200Ah (min) 100 766 1610 200 335 766 300 198 503 400 139 339 500 112 269 600 95 227 700 81 176 800 62 140 900 55 125 1000 50 112 Load (VA) Backup Time @ 24Vdc 100Ah (min) Backup Time @ 24Vdc 200Ah (min) 200 766 1610 400 335 766 600 198 503 800 139 339 1000 112 269 1200 95 227 1400 81 176 1600 62 140 180
Model 5KVA Load (VA) Backup Time @ 48Vdc 100Ah (min) Backup Time @ 48Vdc 200Ah (min) 500 613 1288 1000 268 613 1500 158 402 2000 111 271 2500 90 215 3000 76 182 3500 65 141 4000 50 112 4500 44 100 5000 40 90 Note: Backup time depends on the quality of the battery, age of battery and type of battery. Specifications of batteries may vary depending on different manufacturers.
