USER MANUAL
HYBRID SOLAR INVERTER/CHARGER
PRODUCT OVERVIEW
The product is a Hybrid Solar Inverter/Charger.
Unit Components:
- 1. LCD display
- 2. Status indicator
- 3. Charging indicator
- 4. Fault indicator
- 5. Function buttons
- 6. Power on/off switch
- 7. AC input
- 8. AC output
- 9. PV input
- 10. Battery input
- 11. RS232 communication port
- 12. RS485 communication port
- 13. Wire outlet hole
- 14. Grounding
Diagram Description: The product overview includes two views of the inverter. One view shows the side profile, highlighting ventilation grilles and mounting points. The other view shows the front panel with the LCD display, indicators, and function buttons. Rear panel views illustrate various input/output ports labeled numerically from 1 to 14, corresponding to the component list.
INSTALLATION
Unpacking and Inspection
Before installation, inspect the unit to ensure it is not damaged. The package should contain:
- The unit x 1
- User manual x 1
Preparation
Before connecting any wiring, remove the bottom cover by unscrewing two screws.
Diagram Description: An illustration shows the underside of the inverter with arrows pointing to two screws that need to be removed to access the bottom cover.
Mounting the Unit
Consider the following points when selecting an installation location:
- Do not mount the inverter on flammable construction materials.
- Mount on a solid surface.
- Install the inverter at eye level for easy LCD display readability.
- Maintain an ambient temperature between 0°C and 55°C for optimal operation.
- The recommended installation position is vertical against a wall.
- Ensure sufficient space around the unit for heat dissipation and wire management, as shown in the diagram.
Diagram Description: An illustration shows the inverter mounted vertically on a wall, with recommended clearance distances indicated: 50cm above and below, and 20cm on each side. A warning symbol is present next to the text.
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.
Install the unit by screwing three screws. M4 or M5 screws are recommended.
Diagram Description: An illustration shows the rear of the inverter with three mounting holes indicated, and a dimension of 200.00 mm between the top two holes.
Battery Connection
CAUTION: For safety and regulatory compliance, install a separate DC over-current protector or disconnect device between the battery and inverter. Over-current protection is required even if a disconnect device is not mandatory for specific applications. Refer to the table for required fuse or breaker size based on typical amperage.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It is very important for system safety and efficient operation to use appropriate cable for battery connection. To reduce risk of injury, use the proper recommended cable stripping length (L2) and tinning length (L1) as specified.
Recommended battery cable stripping length (L2) and tinning length (L1):
| Model | Maximum Amperage | Battery capacity | Wire Size | Cable mm² | L1 (mm) | L2 (mm) | Torque value |
| All Models | 137A | 100AH | 2AWG | 38 | 3 | 18 | 2~3 Nm |
Steps for battery connection:
- Remove insulation sleeve 18 mm for positive and negative cables based on the recommended stripping length.
- Connect all battery packs as required by the unit. Using the recommended battery capacity is advised.
- Insert the battery cable flatly into the battery connector of the inverter and tighten the bolts with a torque of 2-3 Nm. Ensure correct polarity at both the battery and the inverter/charger, and that battery cables are tightly screwed to the battery connector.
Diagram Description: Two diagrams illustrate battery connection terminals labeled 'BATTERY POS+ NEG-'. One shows a 12V MODEL configuration with two 12V batteries, another for 24V MODEL with four 12V batteries, and a third for 48V MODEL with eight 12V batteries, all connected in series. A warning symbol is present.
WARNING: Shock Hazard Installation must be performed with care due to high battery voltage in series.
CAUTION!! Do not place anything between the flat part of the inverter terminal, as this may cause overheating.
CAUTION!! Do not apply anti-oxidant substance on the terminals before they are connected tightly.
CAUTION!! Before making the final DC connection or closing the DC breaker/disconnector, ensure the positive (+) must be connected to positive (+) and negative (-) must be connected to negative (-).
AC Input/Output Connection
CAUTION!! Before connecting to the AC input power source, install a separate AC breaker between the inverter and the AC input power source. This ensures the inverter can be securely disconnected during maintenance and is protected from AC input over current. A 50A AC breaker is recommended.
CAUTION!! There are two terminal blocks marked "IN" and "OUT". Do NOT mis-connect input and output connectors.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It is very important for system safety and efficient operation to use appropriate cable for AC input connection. To reduce risk of injury, use the proper recommended cable size as below.
Suggested cable requirement for AC wires:
| Model | Gauge | Torque Value |
| 1.5KVA | 12AWG | 1.4~1.6Nm |
| 3.5KVA | 10AWG | 1.4~1.6Nm |
| 5.5KVA/6.2KVA | 8 AWG | 1.4~1.6Nm |
Steps for AC input/output connection:
- Before making AC input/output connection, ensure the DC protector or disconnector is open.
- Remove insulation sleeve 10mm for six conductors. Shorten phase L and neutral conductor N by 3mm.
- Insert AC input wires according to polarities indicated on the terminal block and tighten the terminal screws. Ensure the PE protective conductor [ground symbol] is connected first. The wiring convention is: Ground (yellow-green) → L (LINE, brown or black) → N (Neutral, blue).
Diagram Description: An illustration shows the AC input and output terminal blocks on the rear of the inverter. Arrows indicate the connection points for ACIN, ACOUT, L, N, and Ground.
WARNING: Be sure that the AC power source is disconnected before attempting to hardwire it to the unit.
- Then, insert AC output wires according to polarities indicated on the terminal block and tighten the terminal screws. Ensure the PE protective conductor [ground symbol] is connected first. The wiring convention is: Ground (yellow-green) → L (LINE, brown or black) → N (Neutral, blue).
Diagram Description: Similar to the AC input diagram, this shows the AC output terminal block with connection points for L, N, and Ground.
- 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 a utility short-circuit when these inverters are operated in parallel.
CAUTION: Appliances such as air conditioners require at least 2~3 minutes to restart to balance refrigerant gas. If a power shortage occurs and recovers quickly, it can damage connected appliances. To prevent this, check if the air conditioner has a time-delay function. Otherwise, this inverter/charger may trigger an overload fault and cut off output, potentially causing internal damage.
PV Connection
CAUTION: Before connecting to PV modules, install a separate DC circuit breaker between the inverter and PV modules.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It is very important for system safety and efficient operation to use appropriate cable for PV module connection. To reduce risk of injury, use the proper recommended cable size as below.
PV Module Connection Cable Size and Torque:
| Model | Typical Amperage | Cable Size | Torque |
| 1.5KVA (PVmax=160V) | 30A | 10 AWG | 1.4~1.6 Nm |
| 3.5KVA (PVmax=160V) | 40A | 8 AWG | 1.4~1.6 Nm |
| 3.5KVA | 15A | 12 AWG | 1.4~1.6 Nm |
| 5.5KVA | 18A | 12 AWG | 1.4~1.6 Nm |
| 6.2KVA | 27A | 12 AWG | 1.4~1.6 Nm |
PV Module Selection:
When selecting PV modules, consider the following parameters:
- The open-circuit voltage (Voc) of PV modules must not exceed the maximum PV array open-circuit voltage of the inverter.
- The open-circuit voltage (Voc) of PV modules should be higher than the minimum battery voltage.
Solar Charging Mode Specifications:
| INVERTER MODEL | 3.5KVA | 5.5KVA | 6.2KVA | 1.5K~3.5KVA (PVmax=160V) |
| Max. PV Array Open Circuit Voltage | 500VDC | 160VDC | ||
| PV Array MPPT Voltage Range | 60VDC~500VDC | 30-160V | ||
| Max. PV INPUT CURRENT | 15A | 18A | 27A | 30A(1.5K) / 50A(3.5K) |
PV Module Configuration Examples:
The following table lists recommended module configurations using 450Wp and 550Wp PV modules as examples.
Solar Panel Spec. (reference) - 450Wp: Vmp: 34.67Vdc, Imp: 13.82A, Voc: 41.25Vdc, Isc: 12.98A
Solar Panel Spec. (reference) - 550Wp: Vmp: 42.48Vdc, Imp: 12.95A, Voc: 50.32Vdc, Isc: 13.70A
| SOLAR INPUT | Q'ty of panels | Total input power | Inverter Model |
| 3 pcs in serial | 3 pcs | 1,350 W | 3.5KVA/5.5KVA/6.2KVA |
| 4 pcs in serial | 4 pcs | 1,800 W | |
| 5 pcs in serial | 5 pcs | 2,250 W | |
| 6 pcs in serial | 6 pcs | 2,700 W | |
| 7 pcs in serial | 7 pcs | 3,150 W | |
| 8 pcs in serial | 8 pcs | 3,600 W | |
| 9 pcs in serial | 9 pcs | 4,050 W | |
| 10 pcs in serial | 10 pcs | 4,500 W | |
| 11 pcs in serial | 11 pcs | 4,950 W | |
| 12 pcs in serial | 12 pcs | 5,400 W | |
| 6 pieces in serial and 2 sets in parallel | 12 pcs | 5,400 W | |
| 8 pieces in serial and 2 sets in parallel | 14 pcs | 6,300 W | 6.2KVA |
| 1 pcs in serial | 1 pcs | 450W | 3.5KVA(PVmax=160V) |
| 2 pcs in serial | 2 pcs | 900W | |
| 3 pcs in serial | 3 pcs | 1,350 W | |
| 3 pcs in serial | 3 pcs | 1,650 W | 3.5KVA/5.5KVA/6.2KVA |
| 4 pcs in serial | 4 pcs | 2,200 W | |
| 5 pcs in serial | 5 pcs | 2,750 W | |
| 6 pcs in serial | 6 pcs | 3,300 W | |
| 7 pcs in serial | 7 pcs | 3,850 W | |
| 8 pcs in serial | 8 pcs | 4,400 W | |
| 9 pcs in serial | 9 pcs | 4,950 W | |
| 4 pieces in serial and 2 sets in parallel | 8 pcs | 4,400 W | |
| 5 pieces in serial and 2 sets in parallel | 10 pcs | 5,500 W | |
| 6 pieces in serial and 2 sets in parallel | 12 pcs | 6,600 W | 6.2KVA |
| 1 pcs in serial | 1 pcs | 550W | 1.5K/3.5KVA(PVmax=160V) |
| 2 pcs in serial | 2 pcs | 1000W | |
| 3 pcs in serial | 3 pcs | 1,500 W | 3.5KVA(PVmax=160V) |
PV Module Wire Connection:
Steps:
- Remove insulation sleeve 10 mm for positive and negative conductors.
- Check the correct polarity of the connection cable from the PV modules and PV input connectors. Connect the positive pole (+) of the connection cable to the positive pole (+) of the PV input connector. Connect the negative pole (-) of the connection cable to the negative pole (-) of the PV input connector.
- Ensure the wires are securely connected.
Diagram Description: An illustration shows the PV input terminal block on the rear of the inverter. Arrows point to the positive and negative terminals, and a diagram shows the stripped end of a wire with dimensions for insulation removal (10mm) and maximum exposed conductor (3mm).
Final Assembly
After connecting all wiring, replace the bottom cover by screwing in the two screws.
Diagram Description: An illustration shows the rear of the inverter with all cables (AC, PV, Battery) connected, and the bottom cover being reattached.
OPERATION
Power ON/OFF
Once the unit has been properly installed and the batteries are connected, press the On/Off switch located on the case to turn on the unit.
Diagram Description: An illustration shows a hand pressing the power ON/OFF switch on the side of the inverter.
Operation and Display Panel
The operation and display panel is located on the front of the inverter. It includes three indicators, four function keys, and an LCD display that shows operating status and input/output power information.
Diagram Description: A close-up of the inverter's front panel shows the LCD display, three LED indicators (labeled AC/INV, CHG, FAULT), and four function keys (ESC, UP, DOWN, ENTER).
LED Indicator Guide:
| LED Indicator | Color | Status | Messages |
| AC/INV | Green | Solid On | Output is powered by utility in Line mode. |
| Flashing | Output is powered by battery or PV in battery mode. | ||
| CHG | Green | Solid On | Battery is fully charged. |
| Flashing | Battery is charging. | ||
| FAULT | Red | Solid On | Fault occurs in the inverter. |
| Flashing | Warning condition occurs in the inverter. |
Function Keys:
| Function Key | Description |
| ESC | To exit setting mode |
| UP | To go to previous selection |
| DOWN | To go to next selection |
| ENTER | To confirm the selection in setting mode or enter setting mode |
LCD Setting
To enter setting mode, press and hold the ENTER button for 3 seconds. Use the "UP" or "DOWN" buttons to select setting programs, and then press "ENTER" to confirm or "ESC" to exit.
Setting Programs:
| Program | Description | Selectable option | Explanation |
| 01 | Output source priority: To configure load power source priority | Solar first | Solar energy provides power to the loads as first priority. If solar energy is not sufficient, battery energy will supply power to the loads simultaneously. Utility provides power only when solar energy is unavailable or battery voltage drops to a low-level warning or a set point (program 12). |
| Utility first (default) | Utility provides power to the loads as first priority. Solar and battery energy supply power only when utility power is unavailable. | ||
| SBU priority | Solar energy provides power to the loads as first priority. If insufficient, battery energy supplies power. Utility provides power only when battery voltage drops to a low-level warning or a set point (program 12). | ||
| SUB priority | Solar energy is charged first, then powers the loads. If solar energy is insufficient, utility energy supplies power to the loads simultaneously. Note: SUB priority is for PVmax=500Vdc models only. | ||
| 02 | Maximum charging current: To configure total charging current for solar and utility chargers (Max. charging current = utility charging current + solar charging current) | 60A (default) | Acceptable charging current range is from Max. AC charging current to Max. charging current of SPEC, but not less than AC charging current (program 11). |
| 03 | AC input voltage range | Appliances (default) | Acceptable AC input voltage range within 90-280VAC. |
| UPS | Acceptable AC input voltage range within 170-280VAC. | ||
| Generator | Acceptable AC input voltage range within 170-280VAC and compatible with generators. Note: Generator output may be unstable. | ||
| 05 | Battery type | AGM (default) | If "User-Defined" is selected, battery charge voltage and low DC cut-off voltage can be set in programs 26, 27, and 29. Supports PYLON US2000 Protocol 3.5 Version. Standard communication Protocol from inverter supplier. |
| Flooded | |||
| User-Defined | |||
| 06 | Auto restart when overload occurs | Restart disable | Restart enable (default) |
| 07 | Auto restart when over temperature occurs | Restart disable | Restart enable (default) |
| 08 | Output voltage | 220V | 230V (default) |
| 240V | |||
| 09 | Output frequency | 50Hz (default) | 60Hz |
| 10 | Auto bypass | manual(default) | When "auto" is selected, if mains power is normal, it will automatically bypass, even if the switch is off. |
| auto | |||
| 11 | Maximum utility charging current | 30A (default) | Acceptable charging current range is within 2-Max. AC charging current of SPEC. |
| 12 | Setting voltage point back to utility source when selecting "SBU priority" or "Solar first" in program 01. | 48V models:46V (default) | Setting range is from 44.0V to 57.2V for 48V model, but max setting value must be less than program 13. |
| 24V models:23V (default) | Setting range is from 22.0V to 28.6V for 24V model, but max setting value must be less than program 13. | ||
| 12V models:11.5V (default) | Setting range is from 11.0V to 14.3V for 12V model, but max setting value must be less than program 13. | ||
| 13 | Setting voltage point back to battery mode when selecting "SBU priority" or "Solar first" in program 01. | Battery fully charged (default) | 48V models: Range 48V to full (program 26 - 0.4V), max value must be greater than program 12. 24V models: Range 24V to full (program 26 - 0.4V), max value must be greater than program 12. 12V models: Range 12V to full (program 13 - 0.4V), max value must be greater than program 12. |
| 16 | Charger source priority: To configure charger source priority | Solar first | Solar energy charges battery first. Utility charges battery only when solar is unavailable. |
| Solar and Utility (default) | Solar energy and utility charge battery simultaneously. | ||
| Only Solar | Solar energy is the only charger source, regardless of utility availability. If in Battery mode, only solar charges the battery if available and sufficient. | ||
| 18 | Buzzer mode | Mode1 | Buzzer mute |
| Mode2 | Buzzer sounds when input source changes or a specific warning/fault occurs. | ||
| Mode3 | Buzzer sounds when a specific warning or fault occurs. | ||
| Mode4 (default) | Buzzer sounds when there is a fault. | ||
| 19 | Auto return to default display screen | Return to default display screen (default) | Automatically returns to default display screen (Input voltage/output voltage) after 1 minute of inactivity. |
| Stay at latest screen | Display stays on the last screen viewed. | ||
| 20 | Backlight control | Backlight on (default) | |
| Backlight off | |||
| 23 | Overload bypass: When enabled, the unit will transfer to line mode if overload occurs in battery mode. | Bypass disable | |
| Bypass enable (default) |
BATTERY EQUALIZATION
Equalization function is added to the charge controller to reverse negative chemical effects like stratification and remove sulfate crystals from battery plates. If unchecked, sulfation reduces battery capacity. Periodic equalization is recommended.
How to Apply Equalization Function:
Enable battery equalization in LCD setting program 33 first. Then, apply using one of the following methods:
- Set equalization interval in program 37.
- Activate equalization immediately in program 39.
When to Equalize:
In float stage, when the set equalization interval is reached, or if equalization is activated immediately, the controller enters the Equalize stage.
Diagram Description: A graph illustrates the battery charging stages: BULK (Constant Current), ABSORPTION (Constant Voltage), FLOAT, and EQUALIZE. The graph shows voltage and current over time, with Equalize Voltage and Float Voltage levels indicated.
Equalize charging time and timeout:
In the Equalize stage, the controller charges the battery maximally until the battery voltage reaches the equalization voltage. Constant-voltage regulation maintains this voltage. The stage continues until the set battery equalized time is reached.
If the battery voltage does not reach the equalization voltage by the time the battery equalized time expires, the controller extends the time. If the voltage is still low when the battery equalized timeout setting is exceeded, equalization stops, and the controller returns to the float stage.
Diagram Description: A second graph illustrates the charging stages, similar to the first, but includes "Equalize Charging Time" and "Equalize Charging Timeout" indicators, showing how the process is managed over time.
SETTING FOR LITHIUM BATTERY
Lithium Battery Connection
For lithium battery use, only configured lithium batteries are supported. The battery has two connectors: RS485 port of BMS and a power cable.
Steps:
- Assemble battery terminals based on recommended battery cable and terminal size (refer to Lead-acid Battery connection section).
- Connect the RS485 port of the battery to the BMS(RS485) communication port of the inverter.
Diagram Description: An illustration shows the rear panel of the inverter with labeled ports, including the RS485 communication port and the BATTERY POS+/NEG- terminals. A separate diagram shows a lithium battery with its RS485 port and power cable.
Lithium battery communication and setting:
Ensure the BMS communication cable connects the battery and inverter. This cable transmits information and signals for lithium battery parameters, allowing the inverter to re-configure charging voltage, current, and discharge cut-off voltage, and to start/stop charging based on battery status.
RS485 Port Connection:
Connect the RS485 port of the battery to the inverter's RS485 communication port. Ensure Pin-to-Pin connection. The communication cable is included in the package. The inverter's RS485 port pin assignment is as follows:
| Pin number | RS485 Port |
| PIN1 | RS485-B |
| PIN2 | RS485-A |
| PIN7 | RS485-A |
| PIN8 | RS485-B |
LCD setting (for Lithium Battery)
After connecting, complete the following settings:
- Select program 05 as the lithium battery type.
- Confirm setting values for programs 41/42/43/44/45.
Note: Programs 43/44/45 are available only with successful communication and will replace functions of programs 12/13/29, making them unavailable.
LCD Display Information:
If communication between the inverter and battery is successful, the LCD will display the following information:
| Item | Description | LCD display |
| 1 | Communication successful icon | Li will be flashing |
| 2 | Max lithium battery charging voltage | Max lithium battery charging voltage is 56.0V. |
| 3 | Max lithium battery charging current | Max lithium battery charging current is 40A. |
| 4 | Lithium battery discharging is forbidden | Li will flash once every 1 second |
| 5 | Lithium battery charging is forbidden | Li will flash once every 2 second |
| 6 | Lithium battery SOC(%) | Lithium battery SOC is 63AH and 60% |
Setting for PYLON US2000 lithium battery
1). PYLONTECH US2000 lithium battery setting:
Dip Switch: There are 4 Dip Switches for baud rate and battery group address. "OFF" position is "0", "ON" position is "1".
- Dip 1: "ON" for baud rate 9600.
- Dip 2, 3, and 4: Reserved for battery group address. Set on the master battery (first battery) to configure group address.
NOTE: "1" is the upper position, "0" is the bottom position.
Diagram Description: An illustration shows a 4-position DIP switch labeled 1234, with the "ON" position indicated.
2). Process of install:
- Step 1: Use the RS485 cable to connect the inverter and Lithium battery.
- Step 2: Switch on the Lithium battery.
Diagram Description: A series of diagrams show the connection process: connecting the RS485 cable, switching on the battery, pressing the battery's start button, and turning on the inverter.
- Step 3: Press the battery's power button for more than three seconds to start; power output is ready.
- Step 4: Turn on the inverter.
- Step 5: Ensure battery type is set to "Li2" in LCD program 5.
If communication is successful, the battery icon [Li symbol] will light up on the LCD display.
Setting for lithium battery without communication
This guide is for lithium battery applications that avoid BMS protection without communication. Follow these settings:
1. Before starting setting, obtain the battery BMS specification:
- A. Max charging voltage
- B. Max charging current
- C. Discharging protection voltage
2. Set battery type as "USE" (user-defined).
| Program | Battery type | AGM (default) | Flooded | User-Defined |
| 05 | 05 AGn | 05 FLd | 05 USE |
If "User-Defined" is selected, battery charge voltage and low DC cut-off voltage can be set in programs 26, 27, and 29.
3. Set C.V voltage as Max charging voltage of BMS - 0.5V.
| Program | Bulk charging voltage (C.V voltage) | Details |
| 26 | If self-defined is selected in program 5, this program can be set up. Setting value must be more than or equal to program 27. Increment is 0.1V. 12V models: Default 14.1V, range 12.0V-15.5V. 24V models: Default 28.2V, range 24.0V-30.0V. 48V models: Default 56.4V, range 48.0V-62.0V. |
4. Set floating charging voltage as C.V voltage.
| Program | Floating charging voltage | Details |
| 27 | If self-defined is selected in program 5, this program can be set up. 12V models default: 13.5V, range 12.0V to value of program 26. 24V models default: 27.0V, range 24.0V to value of program 26. 48V models default: 54.0V, range 48.0V to value of program 26. |
5. Set Low DC cut-off voltage ≥ discharging protection voltage of BMS + 2V.
| Program | Low DC cut-off voltage | Details |
| 29 | If self-defined is selected in program 5, this program can be set up. Setting value must be less than program 12. Increment is 0.1V. Low DC cut-off voltage is fixed regardless of load percentage. 12V models default: 10.5V, range 10.0V-13.5V. 24V models default: 21.0V, range 20.0V-27.0V. 48V models default: 42.0V, range 40.0V-54.0V. |
6. Set Max charging current which must be less than the Max charging current of BMS.
| Program | Maximum charging current | Details |
| 02 | 60A (default) | If selected, acceptable charging current range is within 1-Max. charging current of SPEC, but not less than AC charging current (program 11). |
7. Setting voltage point back to utility source when selecting "SBU priority" or "Solar first" in program 01. The setting value must be ≥ Low DC cut-off voltage + 1V, or the inverter will warn of low battery voltage.
| Program | Setting voltage point back to utility source when selecting "SBU priority" or "Solar first" in program 01. | Details |
| 12 | 48V models: 46V (default). Range 44.0V-57.2V, max value must be less than program 13. 24V models: 23V (default). Range 22.0V-28.6V, max value must be less than program 13. 12V models: 11.5V (default). Range 11.0V-14.3V, max value must be less than program 13. |
Remark:
- It is recommended to finish settings without turning on the inverter (only LCD display, no output).
- Restart the inverter after finishing settings.
TROUBLE SHOOTING
Fault Reference Code:
| Fault Code | Fault Event | Icon on |
| 01 | Over temperature of inverter module | 01-ERROR |
| 02 | Over temperature of DCDC module | 02-ERROR |
| 03 | Battery voltage is too high | 03-ERROR |
| 04 | Over temperature of PV module | 04-ERROR |
| 05 | Output short circuited. | 05-ERROR |
| 06 | Output voltage is too high. | 06-ERROR |
| 07 | Overload time out | 07-ERROR |
| 08 | Bus voltage is too high | 08-ERROR |
| 09 | Bus soft start failed | 09-ERROR |
| 10 | PV over current | 10-ERROR |
| 11 | PV over voltage | 11-ERROR |
| 12 | DCDC over current | 12-ERROR |
| 13 | Over current or surge | 13-ERROR |
| 14 | Bus voltage is too low | 14-ERROR |
| 15 | Inverter failed (Self-checking) | 15-ERROR |
| 18 | Op current offset is too high | 18-ERROR |
| 19 | Inverter current offset is too high | 19-ERROR |
| 20 | DC/DC current offset is too high | 20-ERROR |
| 21 | PV current offset is too high | 21-ERROR |
| 22 | Output voltage is too low | 22-ERROR |
| 23 | Inverter negative power | 23-ERROR |
Warning Indicator:
| Warning Code | Warning Event | Audible Alarm | Icon flashing |
| 02 | Temperature is too High | Beep three times every second | 02△ |
| 04 | Low battery | Beep once every second | 04△ |
| 07 | Overload | Beep once every 0.5 second | 07△ OVERLOAD |
| 10 | Output power derating | Beep twice every 3 seconds | 10△ |
| 14 | Fan blocked | None | 14△ |
| 15 | PV energy is low | Beep twice every 3 seconds | 15△ |
| 19 | Lithium Battery communication is failed | Beep once every 0.5 second | 19△ |
| 21 | Lithium Battery over current | None | 21△ |
| E9 | Battery equalization | None | E9△ |
| bP | Battery is not connected | None | bP△ |
Trouble Shooting Guide:
| Problem | LCD/LED/Buzzer | Explanation / Possible cause | What to do |
| Unit shuts down automatically during startup process. | LCD/LEDs and buzzer will be active for 3 seconds and then complete off. | The battery voltage is too low | 1. Re-charge battery. 2. Replace battery. |
| No response after power on. | No indication. | 1. The battery voltage is far too low. 2. Battery polarity is connected reversed. | 1. Check if batteries and the wiring are connected well. 2. Re-charge battery. 3. Replace battery. |
| Mains exist but the unit works in battery mode. | Input voltage is displayed as 0 on the LCD and green LED is flashing. | Input protector is tripped | Check if AC breaker is tripped and AC wiring is connected well. |
| Green LED is flashing. | Insufficient quality of AC power. (Shore or Generator) | 1. Check if AC wires are too thin and/or too long. 2. Check if generator (if applied) is working well or if input voltage range setting is correct. (UPS→Appliance) Change output source priority to Utility first. | |
| When the unit is turned on, internal relay is switched on and off repeatedly. | LCD display and LEDs are flashing | Battery is disconnected. | Check if battery wires are connected well. |
| Buzzer beeps continuously and red LED is on. | Fault code 07 | Overload error. The inverter is overload 110% and time is up. | Reduce the connected load by switching off some equipment. |
| Fault code 05 | Output short circuited. | Check if wiring is connected well and remove abnormal load. | |
| Fault code 02 | Internal temperature of inverter component is over 100°C. | Check whether the air flow of the unit is blocked or whether the ambient temperature is too high. | |
| Fault code 03 | Battery is over-charged. | Return to repair center. | |
| The battery voltage is too high. | Check if spec and quantity of batteries meet requirements. | ||
| Fault code 06/22 | Output abnormal (Inverter voltage below than 190Vac or is higher than 260Vac) | 1. Reduce the connected load. 2. Return to repair center. | |
| Fault code 08/09/15 | Internal components failed. | Return to repair center. | |
| Fault code 13 | Over current or surge. | Restart the unit; if the error persists, return to repair center. | |
| Fault code 14 | Bus voltage is too low. | If wires are connected well, return to repair center. | |
| Another fault code |
SPECIFICATIONS
Table 1 Line Mode Specifications
| INVERTER MODEL | 1.5KVA PVmax=160V | 3.5KVA | 3.5KVA | 5.5KVA | 6.2KVA |
| Input Voltage Waveform | Sinusoidal (utility or generator) | ||||
| Nominal Input Voltage | 230Vac | ||||
| Low Loss Voltage | 170Vac±7V (UPS) 90Vac±7V (Appliances) | ||||
| Low Loss Return Voltage | 180Vac±7V (UPS); 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 Frequency | 42±1Hz | ||||
| High Loss Frequency | 65±1Hz | ||||
| High Loss Return Frequency | 63±1Hz | ||||
| Output Short Circuit Protection | Battery mode: Electronic Circuits | ||||
| Efficiency (Line Mode) | ≥95% ( Rated R load, battery full charged ) | ||||
| Transfer Time | 10ms typical (UPS); 20ms typical (Appliances) | ||||
Output power derating: When AC input voltage drops to 95V or 170V (depending on models), the output power will be derated.
Diagram Description: A graph shows "Output Power" versus "Input Voltage". The curve indicates that "Rated Power" is maintained up to 170V input, then drops to 50% Power between 90V and 170V, and is zero below 90V.
Table 2 Inverter Mode Specifications
| INVERTER MODEL | 1.5KVA PVmax=160V | 3.5KVA | 3.5KVA | 5.5KVA | 6.2KVA |
| Rated Output Power | 1.5KVA/1.5KW | 3.5KVA/3.5KW | 5.5KVA/5.5KW | 6.2KVA/6.2KW | |
| Output Voltage Waveform | Pure Sine Wave | ||||
| Output Voltage Regulation | 230Vac±5% | ||||
| Output Frequency | 50Hz or 60Hz | ||||
| Peak Efficiency | 94% | ||||
| Surge Capacity | 2* rated power for 5 seconds | ||||
| Nominal DC Input Voltage | 12Vdc | 24Vdc | 48Vdc | ||
| Cold Start Voltage | 11.0Vdc | 23.0Vdc | 46.0Vdc | ||
| Low DC Warning Voltage | Just for AGM and Flooded | ||||
| @ load < 20% | 11.0Vdc | 22.0Vdc | 44.0Vdc | ||
| @ 20% ≤ load < 50% | 10.7Vdc | 21.4Vdc | 42.8Vdc | ||
| @ load ≥ 50% | 10.1Vdc | 20.2Vdc | 40.4Vdc | ||
| Low DC Warning Return Voltage | Just for AGM and Flooded | ||||
| @ load < 20% | 11.5Vdc | 23.0Vdc | 46.0Vdc | ||
| @ 20% ≤ load < 50% | 11.2Vdc | 22.4Vdc | 44.8Vdc | ||
| @ load ≥ 50% | 10.6Vdc | 21.2Vdc | 42.4Vdc | ||
| Low DC Cut-off Voltage | Just for AGM and Flooded | ||||
| @ load < 20% | 10.5Vdc | 21.0Vdc | 42.0Vdc | ||
| @ 20% ≤ load < 50% | 10.2Vdc | 20.4Vdc | 40.8Vdc | ||
| @ load ≥ 50% | 9.6Vdc | 19.2Vdc | 38.4Vdc | ||
Table 3 Charge Mode Specifications
| Utility Charging Mode | |||||
| INVERTER MODEL | 1.5KVA PVmax=160V | 3.5KVA | 3.5KVA | 5.5KVA | 6.2KVA |
| Max Charging Current (PV+AC) (@ VI/P=230Vac) | 120Amp | 100Amp | 100Amp | 120Amp | |
| Max Charging Current (AC) (@VI/P=230Vac) | 80Amp | ||||
| Bulk Charging Voltage | Flooded Battery 14.6Vdc AGM / Gel Battery 14.1Vdc | 29.2Vdc 28.2Vdc | 58.4Vdc 56.4Vdc | ||
| Floating Charging Voltage | 13.5Vdc | 27Vdc | 54Vdc | ||
| Overcharge Protection | 15.5 Vdc | 33Vdc | 63Vdc | ||
| Charging Algorithm | 3-Step | ||||
Charging Curve Diagram Description: A graph shows "Battery Voltage, per cell" and "Charging Current, %" versus "Time". It illustrates the stages: BULK (Constant Current), ABSORPTION (Constant Voltage), and MAINTENANCE (Floating). Key points like T0, T1, and voltage levels (e.g., 2.43Vdc) are indicated.
| Solar Input | |||||
| INVERTER MODEL | 1.5KVA PVmax=160V | 3.5KVA | 3.5KVA | 5.5KVA | 6.2KVA |
| Rated Power | 900W | 1500W | 4000W | 5500W | 6500W |
| Max. PV Array Open Circuit Voltage | 160Vdc | 500Vdc | |||
| PV Array MPPT Voltage Range | 30Vdc~160Vdc | 60Vdc~500Vdc | |||
| Max. Input Current | 30A | 50A | 15A | 18A | 27A |
| Max. Charging Current(PV) | 60A | 100A | 100A | 120A | |
Table 4 General Specifications
| INVERTER MODEL | 1.5KVA PVmax=160V | 3.5KVA | 3.5KVA | 5.5KVA | 6.2KVA |
| Operating Temperature Range | -10°C to 55°C | ||||
| Storage temperature | -15°C~ 60°C | ||||
| Humidity | 5% to 95% Relative Humidity (Non-condensing) | ||||
| Dimension(D*W*H), mm | 358x295x105 | 438x295x105 | |||
| Net Weight, kg | 5.8 | 6.2 | 8.2 | 8.7 | |
