1. Introduction
This ECGSOLAX Hybrid Solar Inverter is a versatile device combining the functions of an inverter, solar charger, and battery charger. It is designed to provide uninterruptible power support in a compact size. 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.
Key Features:
- Pure sine wave output.
- Configurable input voltage range for home appliances and personal computers via LCD setting.
- Configurable battery charging current based on applications via LCD setting.
- Configurable AC/Solar Charger priority via LCD setting.
- Compatible with mains voltage or generator power.
- Automatic restart while AC is recovering.
- Overload, over temperature, and short circuit protection.
- Smart battery charger design for optimized battery performance.
- Cold start function.
2. Product Overview
The ECGSOLAX 3KVA Hybrid Solar Inverter integrates multiple power management functions into a single unit. Below are the main components and their functions.
Front and Rear Panel Layout
Figure 2.1: Inverter Front and Rear Panel
- Power on/off switch
- AC input
- AC output
- PV input
- Battery input
- Circuit breaker
- RS232 communication port
- Dry contact
- Parallel communication cable (only for parallel model)
- Current sharing cable (only for parallel model)
The front panel features an LCD display for monitoring system status and configuring settings, along with function buttons (ESC, UP, DOWN, ENTER) for navigation.
3. Setup and Installation
Proper installation is crucial for the safe and efficient operation of your hybrid solar inverter. Please follow these guidelines carefully.
System Connection Diagram
Figure 3.1: Hybrid Power System Overview
This diagram illustrates a typical hybrid power system setup, integrating solar panels, a generator or utility grid, a 24V battery (lithium or lead-acid), the ECGSOLAX inverter, and various home appliances.
Battery Connection
The inverter requires a 24V battery system. Ensure correct polarity when connecting batteries.
Figure 3.2: Battery Wiring Diagram
NOTE: Please only use sealed lead acid battery or sealed GEL/AGM lead-acid battery for optimal performance and safety.
For a 24V system, connect two 12V batteries in series as shown in the diagram.
PV Panel Configuration (PWM L 3K)
The inverter is equipped with a PWM solar charge controller. Adhere to the following PV panel configuration for optimal charging:
Figure 3.3: Recommended PV Panel Configuration
- Maximum PV Panel Power: 1200 W
- Recommended Panel Setup: 6 pieces of 200W panels.
- Connection: 1 panel in series, 6 panels in parallel.
- Maximum Power Voltage (Vmpp): 30.9V (resulting in approximately 30-32VDC for the array).
- Maximum Power Current (Impp): 8.42A per module. Total PV module current in parallel should not exceed the maximum solar charging current of 50A.
- Open Circuit Voltage (Voc): 37.7V.
- Short Circuit Current (Isc): 8.89A.
WARNING: Do not exceed the maximum PV array open circuit voltage of 80VDC.
4. Operation
The inverter's operation is managed through its LCD display and function buttons.
LCD Display and Indicators
Figure 4.1: LCD Display and Control Panel
- LCD Display: Shows real-time system information such as input/output voltage, battery charge level, and operational mode.
- Charging Indicator: Illuminates when the battery is being charged.
- Fault Indicator: Illuminates to indicate a system error or malfunction. Refer to the troubleshooting section for details.
- Status Indicator: Shows the current operational status of the inverter.
- Function Buttons (ESC, UP, DOWN, ENTER): Used to navigate through menus and configure settings on the LCD.
Configurable Settings
Through the LCD interface, you can customize several operational parameters:
- Input Voltage Range: Adjust for compatibility with home appliances or personal computers.
- Battery Charging Current: Set the desired charging current for your battery bank.
- AC/Solar Charger Priority: Define whether AC power or solar power takes precedence for battery charging.
Refer to the detailed menu structure in the full manual (if available) for step-by-step instructions on configuring these settings.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your ECGSOLAX Hybrid Solar Inverter.
- Cleanliness: Keep the inverter's ventilation openings clear of dust and debris to prevent overheating. Use a dry cloth for cleaning.
- Connections: Periodically check all electrical connections (battery, PV, AC input/output) for tightness and signs of corrosion. Ensure they are secure.
- Battery Health: Monitor battery voltage and performance. Ensure the battery type is compatible (sealed lead acid or sealed GEL/AGM lead-acid battery).
- Environment: Ensure the inverter is installed in a well-ventilated area, away from direct sunlight, moisture, and flammable materials.
WARNING: Before performing any maintenance, ensure the inverter is turned off and disconnected from all power sources (PV, AC, and battery).
6. Troubleshooting
If you encounter issues with your inverter, refer to the fault indicator and the following general troubleshooting steps.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning on | No battery connection or low battery voltage; Power switch off; Circuit breaker tripped. | Check battery connections and voltage; Ensure power switch is ON; Reset circuit breaker. |
| No AC output | Overload; Short circuit; Over temperature; Battery low. | Reduce load; Check for short circuits in wiring; Allow inverter to cool down; Charge battery. |
| Battery not charging | PV input too low or disconnected; AC input disconnected; Charging current setting too low. | Check PV connections and sunlight; Verify AC input; Adjust charging current via LCD settings. |
| Fault indicator illuminated | Internal fault; Overload; Short circuit; Over temperature. | Note the error code on the LCD (if any); Refer to specific error codes in the full manual; Perform general troubleshooting for overload/short circuit/over temperature. |
If the problem persists after attempting these solutions, please contact customer support.
7. Specifications
Detailed technical specifications for the ECGSOLAX 3KVA Hybrid Solar Inverter (Model PS-3K-110V).
Figure 7.1: Technical Specifications
| Parameter | Value |
|---|---|
| Model | |
| Model Number | PS-3K-110V |
| Rated Power | 3000VA / 2400W |
| Input | |
| Voltage | 120VAC |
| Selectable Voltage Range | 170-280VAC (for personal computers); 90-280VAC (for home appliances) |
| Frequency Range | 50 Hz / 60 Hz (Auto detection) |
| Output | |
| AC Voltage Regulation (Batt. Mode) | 120VAC ± 5% |
| Surge Power | 6000VA |
| Efficiency (Peak) | 95% |
| Transfer Time | 10ms (for personal computers); 20ms (for home appliances) |
| Wave Form | Pure Sine Wave |
| Battery & AC Charger | |
| Battery Voltage | 24VDC |
| Floating Charge Voltage | 27VDC |
| Overcharge Protection | 31VDC |
| Maximum Charge Current | 30A |
| Solar Charger | |
| Maximum Charging Current | 50A |
| Charge Mode | PWM |
| Maximum PV Array Open Circuit Voltage | 80VDC |
| Standby Power Consumption | 2W |
| Maximum PV Array Power | 1200W |
| Physical | |
| Dimension (D*W*H) | 100 x 272 x 355 mm |
| Net Weight | 8 kg |
| Operating Temperature Range | 0-55°C |
| Certification | CE |
8. User Tips
- Battery Compatibility: Always ensure you use a compatible 24V battery system. The inverter is designed for sealed lead acid or sealed GEL/AGM lead-acid batteries. Using incorrect battery types or voltages can damage the inverter and batteries.
- Optimal PV Sizing: While the inverter supports up to 1200W of PV array power, consider your daily energy consumption and local solar irradiance to size your PV array appropriately for maximum efficiency.
- Ventilation: Ensure adequate airflow around the inverter. Proper ventilation is key to preventing overheating and maintaining performance, especially during high load operation.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your point of purchase or the manufacturer directly. Keep your purchase receipt and product serial number handy for faster service.
Manufacturer: ECGSOLAX
Model: PS-3K-110V
Serial Number: Refer to the product label (e.g., S/N 3326202101090071 as shown in Figure 2.1).
