About This Manual
This manual describes the installation, operation, and troubleshooting of this unit. It also provides safety and installation guidelines, as well as information on tools and wiring. Please read this manual carefully before any installation and use. Keep this manual for future reference.
Safety Instructions
WARNING: This chapter contains important safety and operating instructions. Read and keep this manual for future reference.
- Before using the unit, read all instructions and cautionary markings on the unit, batteries, and relevant sections of this manual.
- CAUTION -- To avoid danger, only charge deep cycle lead-acid rechargeable batteries. Charging other types of batteries may cause personal injury and damage.
- Do not disassemble the unit. Take it to a qualified service center when service or repair is required. Improper reassembly may result in electric shock or fire. If you need to use other types of batteries, you can contact after-sales service for advice.
- You must disconnect all wiring before attempting any maintenance or cleaning to reduce the risk of electric shock.
- CAUTION - Only qualified personnel may install this appliance with a battery.
- NEVER charge a frozen battery.
- For optimal operation of this inverter/charger, please follow the required specifications to select the appropriate cable size. It is very important to correctly operate this inverter/charger.
- Be careful when working with metal tools on or near batteries. There is a potential risk of dropping a tool and causing a spark or short circuit of batteries or other electrical parts, which could cause an explosion.
- Please strictly follow the installation procedure when disconnecting AC or DC terminals. Refer to the INSTALLATION section of this manual for details.
- GROUNDING INSTRUCTIONS - This inverter/charger must be connected to a permanent grounded wiring system. Ensure compliance with local requirements and regulations for installing this inverter.
- NEVER cause a short circuit on the AC output or DC input. DO NOT connect to the electrical grid in case of a DC input short circuit.
- Attention! Only qualified technicians are authorized to repair this appliance. If errors persist after following the troubleshooting table, please return this inverter/charger to the local dealer or service center for maintenance.
Introduction
This is a multifunctional inverter/charger, combining the functions of an inverter, solar charger, and battery charger to provide uninterrupted power supply. The LCD screen offers user-configurable and easily accessible button operation.
Features
- Pure sine wave inverter
- Configurable input voltage range for home appliances and personal computers via LCD setting
- Configurable battery charge current according to applications via LCD setting
- Configurable AC/solar charger priority via LCD setting
- Compatible with mains voltage or generator power
- Automatic restart during AC recovery
- Protection against overload, overheating, and short circuits
- Intelligent battery charger design for optimized battery performance
- Cold start function
System Architecture
The following illustration shows the basic application of this inverter/charger. It also includes the following devices for a functional system:
- Generator or Utility.
- Photovoltaic modules.
Consult your system integrator for other possible system architectures based on your needs.
This inverter can power all types of appliances at home or in an office environment, including motor-type appliances such as fans, refrigerators, and air conditioners.
Diagram Description (Figure 1 Hybrid Power System): The diagram illustrates the system connectivity. It shows a solar panel (optional) connected to the EDECOA unit. A generator or utility power source is also shown connecting to the unit. External battery packs are connected to the unit. Finally, various home appliances (light bulb, computer, fan, television) are shown connected to the unit's output.
Operation
On/Off
Once the unit is correctly installed and the batteries are properly connected, simply press the ON/OFF switch (located on the side of the unit) to turn on the inverter.
Control Panel and Display
The control panel and display shown below is located on the front panel of the inverter. It includes three indicators, four function keys, and an LCD screen indicating the operating status and input/output power information.
Diagram Description: An illustration of the inverter's front panel showing the LCD screen, indicator LEDs (AC/INV, CHG, FAULT), and function keys (ESC, UP, DOWN, ENTER).
LED Indicators
| LED Indicator | Status | Messages |
| AC/INV | Solid Green | Output is supplied by the mains in line mode. |
| AC/INV | Blinking Green | Output is supplied by battery or PV in battery mode. |
| CHG | Solid Green | Battery is fully charged. |
| CHG | Blinking Green | Battery is charging. |
| FAULT | Solid Red | A fault occurs in the inverter. |
| FAULT | Blinking Red | A warning condition occurs in the inverter. |
Function Keys
| Function Key | Description |
| ESC | Exit setting mode |
| UP | Go to the previous selection |
| DOWN | Go to the next selection |
| ENTER | Confirm selection in setting mode or enter setting mode |
LCD Screen
The LCD screen displays various operational parameters and status information.
LCD Screen Adjustment
After pressing the ENTER button for 3 seconds, the unit will enter setting mode. Press the UP or DOWN button to select setting programs. Then press ENTER to confirm the selection or ESC to exit.
| Program | Description | Available Option(s) | Default |
| Exit setting mode | COHGOE | Once selected, all programs will be restored to default. |
Display Parameter
The information displayed on the LCD screen can be switched by pressing the UP or DOWN key. The information display can be switched in the following order: input voltage, input frequency, PV voltage, charge current, PV power, battery voltage, output voltage, output frequency, charge percentage, Watt charge, VA charge, DC discharge current, processor version.
Display Information: Input Voltage / Output Voltage (Default Display)
LCD Screen: Input Voltage = 230 V, Output Voltage = 230 V
Diagram Description: Shows the EDECOA unit with input and output power flow indicators. Input voltage is displayed as 230V, output voltage as 230V. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: Input Frequency
LCD Screen: Input Frequency = 50 Hz
Diagram Description: Shows the EDECOA unit with input and output power flow indicators. Input frequency is displayed as 50 Hz, output voltage as 230V. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: PV Voltage
LCD Screen: PV Voltage = 100 V
Diagram Description: Shows solar panels, the EDECOA unit, and output to home appliances. Input PV voltage is displayed as 100V, output voltage as 230V. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: PV Current
LCD Screen: PV Current = 2.5 A
Diagram Description: Shows solar panels, the EDECOA unit, and output to home appliances. Input PV current is displayed as 2.5A, output voltage as 230V. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: PV Power
LCD Screen: PV Power = 500 W
Diagram Description: Shows solar panels, the EDECOA unit, and output to home appliances. Input PV power is displayed as 500W, output voltage as 230V. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: Charge Current
LCD Screen: Charge Current CA + PV = 40 A
Diagram Description: Shows AC input, PV input, battery charging, and output to home appliances. Battery status shows 40A, output voltage 230V. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
LCD Screen: Charge Current PV = 20A
Diagram Description: Shows PV input, battery charging, and output to home appliances. Battery status shows 20A, output voltage 230V. Status indicators show CHARGING, and load percentage (100%, 25%).
LCD Screen: Charge Current CA = 20 A
Diagram Description: Shows AC input, battery charging, and output to home appliances. Battery status shows 20A, output voltage 230V. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: Charge Power
LCD Screen: Charge Power CA + PV = 500 W
Diagram Description: Shows AC input, PV input, battery charging, and output to home appliances. Battery status shows 500W, output voltage 230V. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: PV Power
LCD Screen: PV Power = 500 W
Diagram Description: Shows solar panels, battery charging, and output to home appliances. Battery status shows 500W, output voltage 230V. Status indicators show CHARGING, and load percentage (100%, 25%).
Display Information: AC Charge Power
LCD Screen: AC Charge Power = 500 W
Diagram Description: Shows AC input, battery charging, and output to home appliances. Battery status shows 500W, output voltage 230V. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: Battery Voltage and Output Voltage
LCD Screen: Battery Voltage = 25.5 V, Output Voltage = 230 V
Diagram Description: Shows AC input, PV input, battery charging, and output to home appliances. Battery voltage is displayed as 25.5V, output voltage as 230V. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: Output Frequency
LCD Screen: Output Frequency = 50 Hz
Diagram Description: Shows battery voltage as 25.5V, output frequency as 50.0Hz. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: Charge Percentage
LCD Screen: Charge Percentage = 70
Diagram Description: Shows battery voltage as 25.5V, load percentage as 70%. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: Charge in VA/kVA
LCD Screen: Charge = 350 VA
Diagram Description: Shows battery voltage as 25.5V, load in VA as 350. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
LCD Screen: Charge = 1.5 kVA
Diagram Description: Shows battery voltage as 25.5V, load in kVA as 1.50%. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: Charge in W/kW
LCD Screen: Charge = 270 W
Diagram Description: Shows battery voltage as 25.5V, load in W as 270. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
LCD Screen: Charge = 1.2 kW
Diagram Description: Shows battery voltage as 25.5V, load in kW as 1.20. Status indicators show BYPASS, CHARGING, and load percentage (100%, 25%).
Display Information: Battery Voltage/DC Discharge Current
LCD Screen: Battery Voltage = 25.5 V, Discharge Current = 1 A
Diagram Description: Shows battery voltage as 25.5V, discharge current as 1A. Status indicators show CHARGING, and load percentage (100%, 25%).
Display Information: Processor Version
LCD Screen: Version No. 20.11
Diagram Description: Shows processor version as 01 20 11. Status indicators show CHARGING, and load percentage (100%, 25%).
Description of Operating Mode
Operation Mode
| Mode | Description | LCD Display |
| Standby Mode / Energy Saving Mode | No output, but the inverter can still charge batteries. | Charging by utility and PV energy. |
| *Standby Mode: The inverter is not yet powered on but is in standby. In this case, the inverter can charge the battery. | ||
| *Energy Saving Mode: If activated, the inverter's output will be turned off when the connected load is too low or not detected. | Charging by utility. | |
| Default Mode | Note: * Default Mode: Errors are caused by an internal circuit error or external reasons such as high temperature, short circuit, etc. | Charging by PV energy. |
| PV energy and mains can charge the batteries. | Charging by utility. | |
| Charging by PV energy. | ||
| No charge. | ||
| Line Mode | The inverter will supply power from the mains output. The battery will also be charged. | Recharge by mains and PV energy. |
| The inverter will supply power from the mains output. The battery will be charged. | Charging by mains. |
Description of Battery Equalization
The equalization function reverses the accumulation of negative chemical effects like stratification, a condition where acid concentration is higher at the bottom of the battery than at the top. This condition - sulfation - will reduce the overall battery capacity. Therefore, it is recommended to equalize the battery periodically. Equalization also helps to remove sulfate crystals that might be on the plates.
How to Apply the Equalization Function
First, activate the battery equalization function in configuration program 33 of the LCD monitoring screen. Then apply it using one of the following methods:
- Setting the equalization interval in program 34.
- Active equalization immediately in program 39.
When to Equalize
During the float phase, when the equalization interval setting (battery equalization cycle) arrives or equalization is active immediately, the controller begins to enter the equalization phase.
Diagram Description: A charge curve graph showing battery voltage versus time. It illustrates different charging stages: BULK (Constant Current), ABSORPTION (Constant Voltage), FLOAT, and EQUALIZE. The graph shows voltage levels (Equalize Voltage, Absorption Voltage, Float Voltage) and current levels (100%, 50%).
Equalize Charging Time and Delay
During the equalization phase, the controller provides energy to charge the battery as much as possible until the battery voltage reaches the battery equalization voltage. Then, a constant voltage regulation is applied to maintain the battery voltage at the battery equalization voltage. The battery will remain in the equalization phase until the battery equalization time is reached.
However, during the equalization phase, when the battery equalization time expires and the battery voltage does not reach the battery equalization voltage point, the charge controller will extend the battery equalization time until the battery voltage reaches the battery equalization voltage. If the battery voltage is still lower than the battery equalization voltage when the battery equalization delay is exceeded, the charge controller will stop equalization and return to the float phase.
Diagram Description: A charge curve graph similar to the previous one, but with an additional indication of "Equalize Charging Time". It shows the voltage levels and charging stages, highlighting the duration of the equalization phase.
Error Reference Code
In case of a fault, the ERROR icon lights up. Please check the fault code below when it occurs.
| Fault Code | Default Event | Icon |
| 01 | Fan is closed when the inverter is DEACTIVATED | 01 |
| 02 | Over temperature | 02 |
| 03 | Battery voltage is too high | 03 |
| 04 | Battery voltage is too low | 04 |
| 05 | Output short circuit or over temperature detected on internal converter components | 05 |
| 06 | Output voltage is too high | 06 |
| 07 | Overload time expired | 07 |
| 08 | Bus voltage is too high | 08 |
| 09 | Soft bus start failed | 09 |
| 51 | Overcurrent/Overtension | 51 |
| 52 | Bus voltage is too low | 52 |
| 53 | Soft start failure | 53 |
Warning Indicator
When a warning occurs, the [Warning Icon] icon lights up. Please check the error code below when it occurs.
| Warning Code | Warning Event | Audible Alarm | Icon |
| 01 | The fan is locked when the inverter is on. | Emits three beeps per second. | 01 |
| 03 | Battery overcharged | Emits one beep every second. | 03 |
| 04 | Low battery | Emits one beep every second. | 04 |
| 07 | Overload | Emits one beep every 0.5 seconds. | 07 |
| 10 | Reduction of output power | Emits two beeps every 3 seconds. | 10 |
| 12 | Solar charger stops due to low battery. | 12 | |
| 13 | Solar charger stops due to high PV voltage. | 13 | |
| 14 | Solar charger stops due to overload. | 14 |
Specifications
Table 1 Line Mode Specifications
| INVERTER MODEL | EM-101A | EM -152 A |
| Input Voltage Waveform | Sinusoidal (mains or generator) | |
| Nominal Input Voltage | 230 VAC | |
| Low Voltage Loss | 170 VAC ± 10 V (Inverter) 90 VAC ± 10 V (Home Appliances) | 180 VAC ± 10 V (Inverter) 100 VAC ± 10 V (Home Appliances) |
| Low Voltage Return Loss | 280 VAC ± 10 V | |
| High Voltage Loss Return Voltage | 270 VAC ± 10 V | |
| Max. AC Input Voltage | 30 0 VAC | |
| Nominal Input Frequency | 50 Hz / 60 Hz (auto-sensing) | |
| Low Frequency Cut-off | 40±1Hz | |
| Low Frequency Recovery | 42±1Hz | |
| High Frequency Cut-off | 65±1Hz | |
| High Frequency Recovery | 63±1Hz | |
| Output Short Circuit Protection | Circuit Breaker | |
| Efficiency (Line Mode) | > 95% (Rated load R, battery fully charged) | |
| Transfer Time | 10 ms | |
Table 2 Inverter Mode Specifications
| INVERTER MODEL | EM -101A | EM -152 A |
| Rated Power | 1 kVA / 1 kW | 1.5 kVA/ 1.5 kW |
| Output Voltage Waveform | Pure sine wave | |
| Output Voltage Regulation | 230 VAC ±5% | |
| Output Frequency | 50 Hz | |
| Max. Efficiency | 94% | |
| Overload Protection | 3s at ≥ 150% load; 5s at 100% ~ 150% load | |
| Surge Capability | 2 * rated power for 1 second | |
| Nominal DC Input Voltage | 12 V DC | 24 V DC |
| Cold Start Voltage | 11.5 V DC | 23.0 V DC |
| Low DC Voltage Warning | @ load < 50%: 11.25 V DC @ load ≥ 50%: 11.0 V DC | @ load < 50%: 22.5 V DC @ load ≥ 50%: 2 2.0 V DC |
| Low DC Return Voltage Warning | @ load < 50%: 11.75 V DC @ load ≥ 50%: 11.5 V DC | @ load < 50%: 23.5 V DC @ load ≥ 50%: 23.0 V DC |
| Low DC Cut-off Voltage | 10.75 V DC (for EM-101A @ load < 50%) 10.5 V DC (for EM-101A @ load ≥ 50%) 21.5 V DC (for EM-152A @ load < 50%) 21.0 V DC (for EM-152A @ load ≥ 50%) | |
| High DC Recovery Voltage | 15.5 V DC (EM-101A) 31 V DC (EM-152A) | |
| High DC Cut-off Voltage | 16.0 V DC (EM-101A) 3 2 V DC (EM-152A) | |
| Idle Power Consumption | <28W | |
Table 3 Charge Mode Specifications (Utility Charge Mode)
| INVERTER MODEL | EM -101 A | EM -152 A |
| Charge Algorithm | 3 - Stage | |
| Max. AC Charge Current | 40 A @ Vin = 230Vac | |
| Bulk Charge Voltage (V) | Flooded Battery: 14.6 V AGM Battery / Gel: 14.1 V | Flooded Battery: 29.2 V AGM Battery / Gel: 28.2 V |
| Float Charge Voltage | 13.5 V DC | 27.0 V DC |
Table 4 Charge Mode Specifications (MPPT Solar Charge Mode)
| INVERTER MODEL | EM -101 A | EM -152 A |
| Rated Power | 600 W | 1200 W |
| Max. PV Open Circuit Voltage | 1 50 V DC | |
| PV Panel MPPT Voltage Range | 20 - 1 50 V DC | 30-150 VCC |
| Max. PV Charge Current | 40A | |
| Max. Charge Current (PV + AC) | 80A | |
Table 4 Specifications (Continued)
| Model | EM -101 A | EM -152 A |
| Safety Certification | CE | |
| Operating Temperature Range | -10 ~ 50 °C | |
| Storage Temperature | -15~60 °C | |
| Dimensions (D*W*H) (mm) | 286 * 240 * 91 | |
| Net Weight (kg) | 3 | 3.5 |
Troubleshooting
| Problem | LCD/LED/Buzzer | Explanation / Possible Cause | What to do |
| Automatically shuts down during the startup process. | LCD and LED are active for 3 seconds then turn off. | Battery voltage is too low (<1.91 V/cell). | 1. Recharge the battery. 2. Replace the battery. |
| No response after power on. | No indication. | 1. Battery voltage is too low (<1.4 V/cell). 2. Battery polarity is reversed. | 1. Check if the batteries and wiring are firmly connected. 2. Replace the fuse. 3. Recharge the battery. 4. Replace the battery. |
| Mains exist but the unit operates in battery mode. | Input voltage displays 0 on the LCD and the green LED blinks. | The AC protector is tripped. | Check if the AC breaker is tripped and if the AC wiring is properly connected. |
| Green LED blinks. | Insufficient AC power quality (Mains or generator). | 1. Check if AC wires are too thin and/or too long. 2. Check if the generator (if applicable) is functioning well or if the input voltage range setting is correct. (UPS Device) | |
| Green LED blinks. | "Solar First" is selected. | Change the output source priority to utility. | |
| When the unit is on, the internal relay remains on and OFF repeatedly. | LCD and LEDs blink. | The battery is disconnected. | Check if the battery wires are properly connected. |
| The buzzer emits a continuous beep and the red LED is on. | Error Code 07 | Overload. The inverter is overloaded to 110% and the time has expired. | Reduce the connected load by turning off some equipment. |
| Error Code 05 | Output short-circuited. | Check if the wiring is properly connected and remove the abnormal load. | |
| Error Code 02 | Internal component temperature of the converter is above 120°C. | Check if the airflow to the unit is blocked or if the ambient temperature is too high. | |
| Error Code 03 | Internal component temperature of the inverter is above 100°C. | Check if the battery specifications and quantity meet the requirements. | |
| Error Code 01 | Battery is overcharged. | Replace the fan. | |
| Error Code 06/58 | Abnormal output (inverter input voltage below 190 VAC) or above 260 VAC) | 1. Reduce charging connections. 2. Return to repair center. | |
| Error Code 08/09/53/57 | Internal components have failed. | Return to repair center. | |
| Error Code 51 | Overcurrent or overvoltage | Restart and if it recurs, return to repair center. | |
| Error Code 52 | Bus voltage is too low | Restart and if it recurs, return to repair center. | |
| Error Code 55 | Output voltage imbalance | Check the battery connection. | |
| Error Code 56 | Battery connection problem or blown fuse | Check the battery connection. |
