1. Introduction
This ECGSOLAX Hybrid Solar Inverter is a multi-function inverter/charger designed to provide uninterruptible power support in a portable size. It integrates the functions of an inverter, solar charger, and battery charger. The comprehensive LCD display allows users to configure various settings, including battery charging current, AC/solar charger priority, and acceptable input voltage, to suit different applications.
Figure 1: ECGSOLAX 1KW Hybrid Solar Inverter Overview
2. Key Features
- Pure sine wave inverter output.
- Configurable input voltage range for home appliances and personal computers via LCD settings.
- Configurable battery charging current based on applications via LCD settings.
- Configurable AC/Solar Charger priority via LCD settings.
- Compatible with mains voltage or generator power.
- Automatic restart function when AC power recovers.
- Comprehensive protection against overload, over-temperature, and short circuits.
- Smart battery charger design for optimized battery performance.
- Cold start function for reliable operation in various conditions.
- Wi-Fi Communication: Monitor inverter operation remotely via a mobile application.
Figure 2: Wi-Fi Communication Feature
2.1. Comprehensive Protection
The inverter is equipped with 360° protection features to ensure safe and reliable operation:
- Short Circuit Protection
- Over Voltage Protection
- Over Current Protection
- Under Voltage Protection
- Over-Load Protection
- Backfill Protection
- Over Charge Protection
- Over-Temperature Protection
Figure 3: Inverter Protection Features
3. Product Overview
3.1. Components
Figure 4: Inverter External Components
- LCD display
- Status indicator
- Charging indicator
- Fault indicator
- Function buttons
- Power on/off switch
- AC input
- AC output
- PV input
- Battery input
- Circuit breaker
- Output receptacles
3.2. LED Indicators and Function Keys
| LED Indicator | Color | 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 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 |
4. Specifications
| Parameter | MIN-1K |
|---|---|
| Phase | 1-phase |
| Maximum PV Array Power | 600W |
| Rated Output Power | 1000W |
| Maximum Solar Charging Current | 40A |
| Maximum (AC+ Solar) Charging Current | 80A |
| PV Array MPPT Voltage Range | 20-150VDC |
| Max. PV Array Open Circuit Voltage | 150VDC |
| Maximum AC Input Current | 30A |
| Nominal Operating Frequency | 50/60HZ |
| Nominal Output Voltage | 220/230/240VAC |
| Output Waveform | Pure sine wave |
| Efficiency (DC to AC) | 94% |
| Nominal DC Input Voltage | 12VDC |
| Dimension (D x W x H) | 286*240*91 mm |
| Net Weight | 3 kg |
| Operating Temperature | -10°C to 55°C |
For detailed specifications of other models, please refer to the product packaging or contact support.
5. Setup and Installation
5.1. System Connection Overview
Figure 5: General System Connection Diagram
Solar Charging:
- Max. VOC: 150VDC
- PV Array MPPT Voltage Range: 20-150VDC
- Max. PV Array Power: 1000W
- Solar Starting Voltage: 20V
- Solar Panels are Recommended in Series.
AC Charging:
- Max Charging current: 80A (AC charger + solar charger)
AC Output:
- Single Phase 230V
- Power: 1KW
Battery:
- 12V Battery: Lead-Acid battery, Lithium battery
5.2. 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.
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 battery connection. To reduce risk of injury, please use the proper recommended cable as below.
| Model | Wire Size | Cable (mm²) | Torque value (max) |
|---|---|---|---|
| 1.0KW 12V | 1 x 6AWG | 14 | 5 Nm |
| 1.5KW 24V | 1 x 6AWG | 14 | 5 Nm |
Please follow below steps to implement battery connection:
- Remove insulation sleeve 18 mm for positive and negative conductors.
- Suggest to put bootlace ferrules on the end of positive and negative wires with a proper crimping tool.
- Insert the battery wires flatly into battery connectors of inverter and make sure the bolts are tightened with torque of 2 Nm in clockwise direction. Make sure polarity at both the battery and the inverter/charge is correctly connected and conductors are tightly screwed into the battery terminals.
Recommended tool: #2 Pozi Screwdriver
Figure 6: Battery Wire Connection Detail
WARNING: Shock Hazard Installation must be performed with care due to high battery voltage in series.
CAUTION!! Before making the final DC connection or closing DC breaker/disconnector, be sure positive (+) must be connected to positive (+) and negative (-) must be connected to negative (-).
6. Operation
6.1. Operation with Battery Connected
Figure 7: Operation with Battery Connected
When the battery is connected, the inverter can draw power from solar panels, a generator, or the utility grid to charge the external battery packs. The charging voltage is adjustable. Power is then supplied to home appliances from the inverter, prioritizing solar and battery power.
6.2. Operation without Battery Connected
Figure 8: Operation without Battery Connected
In scenarios where no battery is connected, the inverter can still supply power to home appliances directly from solar panels, a generator, or the utility grid. This mode is suitable for direct power consumption without energy storage.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your ECGSOLAX Hybrid Solar Inverter.
- Cleaning: Keep the inverter's ventilation openings clear of dust and debris to ensure proper airflow and prevent overheating. Use a soft, dry cloth for cleaning the exterior. Do not use liquid cleaners.
- Connections: Periodically check all electrical connections (PV input, AC input/output, battery input) for tightness and signs of corrosion. Loose connections can lead to power loss or overheating.
- Battery Health: If using lead-acid batteries, regularly check their water levels and ensure terminals are clean and free of corrosion. Follow the battery manufacturer's maintenance guidelines.
- Environment: Ensure the inverter is installed in a cool, dry, and well-ventilated area, away from direct sunlight, moisture, and flammable materials.
- Firmware Updates: Check the manufacturer's website or contact support for any available firmware updates to improve performance or address potential issues.
8. Troubleshooting
This section provides guidance on common issues you might encounter with your inverter. Refer to the LED indicators and LCD display for diagnostic information.
8.1. Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning on | No DC input from battery/PV; Power switch off; Blown fuse/circuit breaker. | Check battery connections and voltage; Ensure PV input is sufficient; Turn on power switch; Check and replace fuse/reset breaker. |
| No AC output | Overload; Short circuit; Over-temperature; Battery low voltage. | Reduce load; Check for short circuits in connected appliances; Allow inverter to cool down; Charge battery. |
| Fault indicator (Red Solid On/Flashing) | Internal fault; Specific warning condition. | Note the specific fault code on the LCD (if any) and refer to the detailed fault code section in the full manual (if available). Try restarting the inverter. If persistent, contact support. |
| Battery not charging | No AC/PV input; Charging current setting too low; Battery fault. | Check AC/PV input sources; Adjust charging current via LCD settings; Inspect battery for damage. |
| Wi-Fi communication issues | Poor Wi-Fi signal; Incorrect network settings; App issues. | Ensure inverter is within Wi-Fi range; Verify network credentials; Restart inverter and router; Reinstall mobile app. |
If the problem persists after attempting these solutions, please contact customer support.
9. User Tips
- For optimal performance, ensure your solar panel array voltage and current are within the inverter's specified operating range.
- When connecting batteries, always double-check polarity to prevent damage to the inverter and batteries.
- Utilize the configurable settings on the LCD to prioritize AC or solar charging based on your energy needs and availability.
- Regularly monitor the inverter's status via the LCD display or the Wi-Fi communication app to catch potential issues early.
- Consider the total wattage of your connected appliances to avoid overloading the inverter, especially during peak usage.
10. Warranty and Support
For warranty information, technical support, or service requests, please contact your point of purchase or the ECGSOLAX customer service department. Keep your purchase receipt and product serial number handy when contacting support.
