EDECOA EG-624B / EG-422B Hybrid Inverter/Charger User Manual
Version: 2.3
About This Manual
This manual describes the assembly, installation, operation, and troubleshooting of this appliance. It also provides safety and installation guidelines, as well as information on tools and wiring. Please read this manual carefully before 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 precautionary markings on the unit, batteries, and all appropriate sections of this manual.
- CAUTION -- To avoid danger, only charge deep cycle lead-acid type 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. Incorrect 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 optimum operation of this inverter/charger, please follow the required specifications to select the appropriate cable size. This 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 the batteries or other electrical parts, which could cause an explosion.
- Please strictly follow the installation procedure when you need to disconnect the AC or DC terminals. Please refer to the INSTALLATION section of this manual for details.
- GROUNDING INSTRUCTIONS - This inverter/charger must be connected to a permanent wiring system with grounding. Please comply with local requirements and regulations for installing this inverter.
- NEVER short circuit the AC output or DC input. DO NOT connect to the electrical grid in case of 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 household 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 kinds of appliances at home or in an office environment, including motor-type appliances such as fans, refrigerators, and air conditioners.
Operation
Power 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.
LED Indicators
| LED Indicator | Status | Messages |
|---|---|---|
| AC/INV | Solid Green | Output is supplied by the mains in line mode. |
| Flashing Green | Output is supplied by battery or PV in battery mode. | |
| CHG | Solid Green | The battery is fully charged. |
| Flashing Green | The battery is charging. | |
| ▲ FAULT | Solid Red | A fault occurs in the inverter. |
| Flashing Red | A warning condition occurs in the inverter. |
Function Keys
| Function Key | Description |
|---|---|
| [Exit] | Exit setting mode |
| [Previous] | Go to the previous selection |
| [Next] | Go to the next selection |
| [Enter] | Confirm selection in setting mode or enter setting mode |
LCD Screen Icons
The LCD screen displays various icons to indicate the system status:
Input Source Information:
- AC Input: Indicates AC input.
- PV Input: Indicates PV input. Displays input voltage, input frequency, PV voltage, battery voltage, and charger current.
Configuration Program and Fault Information:
- Indicates the setting program number.
- Indicates warning and error codes.
- Warning: Flashing with warning code.
- Fault: Solid with fault code.
Output Information:
- Displays output voltage, output frequency, charge percentage, VA load, Watt load, and discharge current.
Battery Information:
- Indicates battery status.
Charging Information:
- Displays charging status.
Mode of Operation Information
- OVERLOAD: Indicates an overload.
- Unit connected to the public grid.
- Unit connected to the PV panel.
- AC BYPASS: The load is supplied by the mains.
- Utility charger circuit is functioning.
- DC/AC inverter circuit is functioning.
- Mute Function: The unit's alarm is deactivated.
LCD Screen Setting
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 the "ENTER" button to confirm the selection or the ESC button to exit.
Setting Programs:
| Program | Description | Available Option(s) | Default |
|---|---|---|---|
| 00 | Exit setting mode | GOX, GOE | Once selected, all programs will be restored to default. |
| 01 | Priority of output source: To configure the priority of the charging power source | SUB (Default) | Solar energy supplies electricity to loads in priority. If solar energy is insufficient to power all connected loads, mains power will be added. The battery supplies energy to the loads only under one of the following conditions: - Solar energy and public services are not available. - Solar energy is insufficient and public services are not available. |
| SBU | Solar energy supplies electricity to loads in priority. If solar energy is insufficient to power all connected loads, the battery energy will power the loads at the same time. | ||
| nTS | The public service supplies energy to the load only when the battery voltage drops to the warning voltage level or to the setting point of program 12. | ||
| USB | When solar energy is available, priority is given to utility → solar battery. When solar energy is not available, priority is given → to the service battery, while the battery is the backup power source. | ||
| 02 | Maximum charge current: to configure the total charge current for solar and utility chargers (Max. charge current = utility charge current + solar charge current) | 10A, 60A | 10A (maximum 120A) |
| 03 | AC input voltage range | APL (Default), UPS, Inondé | The AC input voltage range is between 90 and 280 VAC. |
| 05 | Battery Type | USE (User Defined), LIB | AGM (Default) |
| If "User Defined" is selected, the battery charge voltage and the low DC cut-off voltage can be configured in programs 26, 27 and 29. | |||
| When solar or mains power is available, set this item to LIB, the lithium battery will be activated in 3 seconds. | |||
| If selected, Lithium battery communication is specified for PACE 232 BMS. Lithium battery activation function is automatically activated. | |||
| If selected, Lithium battery communication is specified for PACE 485 BMS. Lithium battery activation function is automatically activated. | |||
| If selected, Lithium battery communication is specified for PYLON 485 BMS. Lithium battery activation function is automatically activated. | |||
| 06 | Automatic restart in case of overload | LFd (Default), LHE | LFd: Automatic restart disabled. LHE: Automatic restart enabled. |
| 07 | Automatic restart in case of overheating | LFd (Default), EFE | LFd: Automatic restart disabled. EFE: Automatic restart enabled. |
| 09 | Output frequency | 50 Hz (Default), 60 Hz | 50 Hz / 60 Hz |
| 10 | Output voltage | 220V, 230V (Default), 240V | Default: 230V |
| 11 | Maximum utility charge current | 2A (Minimum), 30A (Default) | 100A (maximum) |
| 12 | Setting the grid voltage point when selecting "SBU Priority" or "Solar First" in program 01. | 21.0V - 25.5V (EG-422B), 42.0V - 46.0V (EG-624B) | Default: 23.0V (EG-422B), 46.0V (EG-624B) |
| When SBU is selected in program 01 and LIP or LIL in program 05, you can define the battery level at which the inverter switches back to utility mode. If utility access has a delay, it will switch to utility after the delay. | |||
| 13 | Setting the battery mode voltage point when selecting "SBU Priority" or "Solar First" in program 01. | 24.0V - 29.0V (EG-422B), 48.0V - 58.0V (EG-624B) | Default: 27.0V (EG-422B), 54.0V (EG-624B) |
| When SBU is selected in program 01 and LIP or LIL in program 05, you can configure the battery level at which the inverter returns to battery mode. When the battery level is higher than this value, the inverter automatically switches to battery mode. | |||
| 16 | Priority of the charger source | SBU, SBU+Utility | If this inverter/charger operates in Line, Standby, or Fault mode, the charger source can be programmed as follows: SBU+Utility: Solar and utility will charge the battery simultaneously. |
| Solar First | Solar energy will charge the battery in priority. Mains power will charge the battery only when solar energy is not available. | ||
| Solar Only | Solar energy will be the sole source of energy supply, whether mains power is available or not. | ||
| If this inverter/charger is in battery mode or energy-saving mode, only solar energy is available to charge the battery. Solar energy will charge the battery if it is available and sufficient. | |||
| 18 | Alarm control | 60n (Default), 60F | 60n: Alarm enabled. 60F: Alarm disabled. |
| 19 | Return to default display | ESP (Default), HEP | ESP: If this option is selected, regardless of how the user changes the display, it will automatically return to the default display (input voltage/output voltage) within one minute after no button is pressed. HEP: If this option is selected, the display will remain on the previous screen after the user has finally changed it. |
| 20 | Backlight control | LON (Default), LOF | LON: Backlight enabled. LOF: Backlight disabled. |
| 22 | Emits a beep when the main source is interrupted | AON (Default), AOF | AON: Alarm enabled. AOF: Alarm disabled. |
| 23 | Overload bypass: When this option is activated, the unit switches to line mode if an overload occurs in battery mode. | bYd (Default), bYE | bYd: Bypass disabled. bYE: Bypass enabled. |
| 25 | Record error code | FEN (Default), FdS | FEN: Record enabled. FdS: Record disabled. |
| 26 | Bulk charge voltage (CV Voltage) | 28.2V (EG-422B Default), 56.4V (EG-624B Default) | This program is only available when the auto-defined option is selected in program 05. The setting range is between 24.0V and 29.2V for EG-422B and 48.0V to 58.4V for EG-624B. The increment of each click is 0.1V. |
| 27 | Float charge voltage | 27V (24V model Default), 54V (48V model Default) | The setting range is between 25.0V and 31.5V. The increment of each click is 0.1V. The setting range is between 48.0V and 61.0V. The increment of each click is 0.1V. |
| 29 | Low DC cut-off voltage | 20.0V (EG-422B Default), 40.0V (EG-624B Default) | This program can only be configured if the auto-defined option is selected in program 05. The setting range is between 24.0V and 29.2V for EG-422B and between 48.0V and 58.4V for EG-624B. The increment of each click is 0.1V. |
| 30 | Battery equalization | EEN, EdS | This program is available only when "Flooded" or "User Defined" is selected in program 05. |
| 31 | Battery equalization voltage | 29.4V, 58.4V | The setting range is between 25.0V and 31.5V. The increment of each click is 0.1V. The setting range is between 48.0V and 61.0V. The increment of each click is 0.1V. |
| 33 | Battery equalization time | 60 min (Default) | The setting range is between 5 and 900 minutes. The increment of each click is 5 minutes. |
| 34 | Battery equalization delay expired | 120 min (Default) | The setting range is between 5 and 900 minutes. The increment of each click is 5 min. |
| 35 | Equalization interval | 30 days (Default) | The setting range is from 0 to 90 days. The increment of each click is 1 day. |
| 36 | Activate equalization immediately | AEN (Default), AUS | This program is only available when the equalization function is activated in program 30. If "Activate" is selected in this program, the battery equalization is immediately activated and the main LCD screen displays " E9 ". If "Deactivate" is selected, the equalization function is canceled until the next scheduled equalization time arrives according to the setting of program 35. At this moment, " E9 " is not displayed on the main LCD screen. |
| 37 | Grid connection operation | OFF, HYd | OFF: Inverter in off-grid mode. No energy is fed into the grid. HYd: Inverter in grid-connected mode. The solar system supplies energy to the loads in priority, charges the battery in second priority, and supplementary energy will be fed into the grid. |
| 38 | Grid connection current | 10A | Limitation of the current fed into the grid. The increment of each click is 2A. |
| 39 | LED patterns | LON (Default), LOF | LON: LED lights are on. LOF: LED lights are off. |
| 41 | Dual output | L20 (Default), L2F | L20: Disabled. L2F: Enabled. |
| 42 | Voltage points where the inverter switches to dual output | 22.0V - 26.0V (EG-422B), 40.0V - 52.0V (EG-624B) | This program only works when program 41 is set to LZO. When the battery voltage is lower than the setting value, the main output is cut off and the secondary output continues to operate. Note: The maximum secondary power is only 33% of the full load, i.e., 1400W for EG-422B and 2067W for EG-624B. |
| 43 | BMS 48-70 communication address | DIS (Default), ENA | If program 05 is in LIL mode, you can change the postal address. The corresponding address for 48 is 02, for 49 it is 12, etc. |
| 44 | Delayed energy input | DIS (Default), ENA | When activated, there will be a 5s delay for grid power input. |
| 45 | Maximum secondary charge | By default, the maximum secondary charge is 33% of the maximum output power. The setting range is between 20% and 70%. |
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 load, charge in VA, CC discharge current, processor version.
Description of Operating Mode
| Operation Mode | Description | LCD Display |
|---|---|---|
| Standby Mode | AC input = 222 V PV Tension = 210V Battery Tension = 25V Output Tension = 0V Charge = 0 W CHG - Blinking INV/AC - ACTIVE |
|
| Note: The inverter is not yet powered on, but in this stage, the inverter can charge the battery without AC output. | ||
| AC input = 223 V PV Tension = 0 V Battery Tension = 25V Output Tension = 0V Charge = 0 W CHG - Blinking INV/AC - ACTIVE |
||
| AC input = 0 V PV Tension = 210V Battery Tension = 25V Output Tension = 0V Charge = 0 W CHG - Blinking |
||
| Line Mode | AC input = 22.4 V PV Current = 8.6 A Battery Current = 25A Output Tension = 222V Charge = 1.88 kVA CHG - Blinking INV/AC - ACTIVE |
|
| Grid Connection Operation | AC input = 224 V PV Tension = 0 V Battery Tension = 25V Output Tension = 222V Charge = 188 W CHG - Blinking INV/AC - ACTIVE |
|
| AC input = 22.4 V PV Current = 8.6 A Battery Current = 25A Output Tension = 222V Charge = 1.88 kVA CHG - Blinking INV/AC - ACTIVE |
||
| Battery Mode | AC input = 0 V PV Tension = 180V Battery Tension = 25V Output Tension = 230V Charge = 388 W CHG - Blinking INV/AC - Blinking |
|
| When operating in grid-connected mode, the utility icon blinks every 3 seconds. |
Lithium Battery Information
Lithium Battery Connection
The lithium battery connection is the same as the Battery Connection. Please read the following instructions regarding BMS connection.
- Before connecting, ensure the lithium battery and inverter are turned off. (It is recommended to install a circuit breaker for the lithium battery power cables and the inverter battery interface.)
- The RJ45 connector of the communication cable connects to the BMS port of the inverter, and the other RJ45 connector connects to the RS485 port of the lithium battery.
- You will find two types of connectors as shown on the left. The top one is the RJ45 to connect to the BMS port on the battery. The bottom one is the RJ45 to connect to the BMS port on the inverter.
| Description | LCD Display |
|---|---|
| LIC (Lithium Battery Communication Connection PACE 232 BMS) |
LIP Mode (BMS PACE 485)
Total Battery Voltage = 52.4 V
Battery Remaining Capacity = 23%
Battery Charge Current = 0A
Battery Discharge Current = 1A
Nominal Battery Voltage = 48 V
Total Battery Capacity = 100 Ah
Battery Remaining Capacity = 23%
Battery Charge/Discharge Time = 8
Ambient Battery Temperature = 28.2 °C
MOS Battery Temperature = 28.9 °C
Single Cell Battery Voltage = 32.7 V
Single Cell Battery Temperature = 28.5 °C
LIL Mode (Pylone 485 BMS)
Total Battery Voltage = 25.9 V
Battery Remaining Capacity = 11%
Battery Charge Current = 0A
Battery Discharge Current = 1A
Battery Charge Cycles = 12
Nominal Battery Capacity = 100 Ah
Minimum MOS Battery Temperature = 28.2 °C
Maximum MOS Battery Temperature = 28.9 °C
Maximum Single Cell Battery Voltage = 3.24 V
Minimum Single Cell Battery Voltage = 3.24 V
Maximum Single Cell Battery Temperature = 32.8 °C
Minimum Single Cell Battery Temperature = 31.5 °C
Description of Battery Equalization
The equalization function reverses the accumulation of negative chemical effects such as stratification, a condition in which acid concentration is higher at the bottom of the battery than at the top. This condition - sulfation - will reduce the overall capacity of the battery. Therefore, it is recommended to equalize the battery periodically. Equalization also helps to remove sulfate crystals that may be on the plates.
How to Apply the Equalization Function
First, activate the battery equalization function in the configuration program of the monitoring LCD screen 33. Then apply this function in the appliance using one of the following methods:
- Setting the equalization interval in program 34.
- Active equalization immediately in program 39.
When to Equalize
In float phase, when the equalization interval setting (battery equalization cycle) arrives or equalization is active immediately, the controller starts to enter the equalization phase.
Equalize Charging Time and Delay
In 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, in the equalization phase, when the battery equalization time has expired and the battery voltage has not reached 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 time delay is exceeded, the charge controller will stop equalization and return to the float phase.
Fault Reference Code
| Fault Code | Default Event | Icon |
|---|---|---|
| 01 | Fan is closed when inverter is DISABLED | |
| 02 | Over temperature | |
| 03 | Battery voltage is too high | |
| 04 | Battery voltage is too low | |
| 05 | Short circuit or over temperature detected on internal converter components | |
| 06 | Output voltage is too high | |
| 07 | Overload time | |
| 08 | Bus voltage is too high | |
| 09 | Bus soft start failed | |
| 11 | Main relay failed | |
| 13 | Solar charger stops due to high PV voltage | |
| 51 | Overcurrent/Overtension | |
| 52 | Bus voltage is too low | |
| 53 | Soft start failure | |
| 55 | DC overvoltage | |
| 57 | Current sensor failure | |
| 58 | Output voltage is too low |
Warning Indicator
| Warning Code | Warning Event | Audible Alarm | Flashing Icon |
|---|---|---|---|
| 01 | The fan is locked when the inverter is on. | Beeps three times per second | |
| 03 | Overcharged battery | Beeps once every second | |
| 04 | Low battery | Beeps once every second | |
| 07 | Overload | Beeps once every 0.5 seconds | |
| 10 | Output power reduction | Beeps twice every 3 seconds | |
| 15 | Photovoltaic energy is low | Beeps twice every 3 seconds | |
| Eq | Battery equalization in progress | - | |
| bp | Battery connection problem | - |
Lithium Battery Mode Warning Codes
| Warning Code | Warning Event | Cause of Event |
|---|---|---|
| 04 | Low battery voltage | Minimum single cell battery voltage in lithium < 2.85 V: Total battery voltage in lithium < 42 V (lithium battery 48 V): Lithium battery voltage < 22.4 V (lithium battery 24 V). |
| 05 | High battery voltage | Maximum single cell battery voltage in lithium > 3.55 V: Total battery voltage in lithium > 54 V (lithium battery 48 V): Total battery voltage in lithium > 28.8 V (lithium battery 24 V). |
| 06 | Low battery level | Current battery level ≤ 10% |
CHARACTERISTICS
Table 1 Line Mode Specifications
| INVERTER MODEL | EG-422B | EG-624B |
|---|---|---|
| Input voltage waveform | Sinusoidal (mains or generator) | |
Table 2 Inverter Mode Specifications
| INVERTER MODEL | EG-422B | EG-624B |
|---|---|---|
| Rated input voltage | 230 VAC | |
| Low voltage loss | 170 VAC ± 7 V (inverter) 90VAC± 7V (Household appliances) |
|
| Low voltage return | 180VAC ± 7V (inverter) 100VAC± 7V (Appliances) |
|
| High voltage loss | 280 VAC ±7V | |
| High voltage return | 270 VAC ±7V | |
| Maximum AC input voltage | 300 VCA | |
| Nominal input frequency | 50 Hz / 60 Hz (automatic detection) | |
| Low frequency cutoff | 40±1Hz | |
| Low frequency recovery | 42±1Hz | |
| High frequency cutoff | 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 typical (UPS): 20 ms typical (household appliances) | |
| Output power reduction: When the AC input voltage drops to 170V, the output power will be reduced. |
||
Table 2 Inverter Mode Specifications
| INVERTER MODEL | EG-422B | EG-624B |
|---|---|---|
| Rated power | 4.2 kW | 6.2 kW |
Table 3 Two Output Specifications
| Model | EG-422B | EG-624B |
|---|---|---|
| Full load | 4200 W | 6200 W |
| Max. main charge | 4200 W | 6200 W |
| Max. secondary charge | 1400 W | 2066W |
| Cut-off voltage of the main charge | 26 V CC | 52 V CC |
| Return voltage of the main charge | 27 V CC | 54 VCC |
Table 4 Charging Mode Specifications
Utility Charging Mode
| INVERTER MODEL | EG-422B | EG-624B |
|---|---|---|
| Charging algorithm | 3 - Stage | |
| AC charge current | 100 amperes (at Vinput = 230 V) | |
| Bulk charge voltage (V) | Flooded Battery: 29.2 AGM / Gel Battery: 28.2 |
Flooded Battery: 58.4 AGM / Gel Battery: 56.4 |
| Float charge voltage | 27.0 V CC | 54.0 V CC |
Solar Charging Mode (MPPT)
| INVERTER MODEL | EG-422B | EG-624B |
|---|---|---|
| Rated power | 6200 W | 6500 W |
| Max. open circuit voltage of PV array | 500 VCC | |
| Max. charge current (Mains charger + Solar charger) | 120 amperes | |
Table 5 Grid Connection Specifications
| Model | EG-422B | EG-624B |
|---|---|---|
| Nominal output voltage | 220/230/240 VCC | |
| Grid power input voltage range | 195~253 VAC | |
| Grid power input frequency range | 49 to 51 ± 1 Hz/59 to 61 ± 1 Hz | |
| Nominal output current | 18.2A | 26.9 A |
| Power factor range | >0.99 | |
| Maximum conversion efficiency | 97% | |
Table 6 General Specifications
| Model | EG-422B | EG-624B |
|---|---|---|
| Safety certification | CE | |
| Operating temperature range | -10 ~ 50 °C | |
| Storage temperature | -15~60 °C | |
| Humidity | 5%~95% relative humidity (without condensation) | |
| Dimensions (D*W*H) (mm) | 8.0 | 8.9 |
| Net weight (kg) | 358*442*116 | 358*442*116 |
TROUBLESHOOTING
| Problem | LCD/LED/Buzzer Display | Explanation / Possible Cause | What to do |
|---|---|---|---|
| Automatically stops during the startup process. | LCD/LED and buzzer active for 3 seconds, then turns off. | The battery voltage is too low (<1.91 V/cellule) | 1. Recharge the battery. 2. Replace the battery. |
| No response after powering on. No indication. | No indication. | The battery voltage is too low (<1.4 V/cellule) 2. Battery polarity is reversed. |
1. Check if the battery wires are too thin and/or too long. 2. Replace the fuse. 3. Recharge the battery. 4. Replace the battery. |
| The mains exist but the unit operates in battery mode. | The input voltage is displayed as 0 on the LCD screen and the green LED blinks. | The AC protector is triggered and the AC wiring is well connected. | 1. Check if the AC wires are too thin and/or too long. 2. Check if the generator (if any) is working properly or if the input voltage range setting is correct. (UPS→Appliance) Change the output source priority to utility. |
| When the unit is on, the internal relay remains on and OFF several times. | The green LED blinks. | Insufficient quality of alternating current. (Mains or generator) | Change the output source priority to utility. |
| The green LED blinks. | "Solar First" is selected. | Change the output source priority to utility. | |
| 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 by 110% and the time has expired. | Reduce the connected load by turning off some equipment. |
| Error Code 05 | Short circuit output. The temperature of the internal converter component is too high. |
Check if the wiring is properly connected and eliminate the abnormal load. Check if the airflow of the unit is blocked or if the ambient temperature is too high. |
|
| Error Code 02 | The temperature of the internal converter component of the inverter is higher than 100°C. | Return to the service center. | |
| Error Code 03 | The battery voltage is too high. | Check if the specifications and quantity of batteries meet the requirements. | |
| Error Code 01 | Fan fault. | Replace the fan. | |
| Error Code 06/58 | Abnormal voltage (input voltage lower than 190 VAC) or higher than 260 VAC. | 1. Reduce connections. 2. Return to the repair center. |
|
| Error Code 08/09/53/57 | Internal components have failed. | Return to the repair center. | |
| Error Code 51 | Overcurrent or overvoltage. | Restart and if it recurs, return for repair. | |
| Error Code 52 | Bus voltage too low. | Restart and if it recurs, return for repair. | |
| Error Code 55 | Output voltage imbalance. | Restart and if it recurs, return for repair. | |
| Error Code 56 | Battery connection or fuse blown problem. | Check the battery connection. |
