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USER’S MANUAL
SOLAR INVERTER
PV2024 HM &
PV3024 HM
Version 10/08/2018
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Table Of Contents
ABOUT THIS MANUAL ..................................................................................................................................... 3
Purpose ............................................................................................................................................................ 3
Scope ............................................................................................................................................................... 3
SAFETY INSTRUCTIONS .................................................................................................................................. 3
INTRODUCTION ............................................................................................................................................... 4
Features ........................................................................................................................................................... 4
Basic System Architecture ............................................................................................................................... 4
Product Overview ............................................................................................................................................. 5
INSTALLATION ................................................................................................................................................... 6
Unpacking and Inspection................................................................................................................................ 6
Preparation ...................................................................................................................................................... 6
Mounting the Unit ............................................................................................................................................. 6
Battery Connection .......................................................................................................................................... 7
AC Input/Output Connection ............................................................................................................................ 9
PV Connection ............................................................................................................................................... 10
Final Assembly ............................................................................................................................................... 11
Commuication connection ............................................................................................................................. 11
Dry Contact Signal ......................................................................................................................................... 12
OPERATION ..................................................................................................................................................... 12
Power ON/OFF ..................................................................................................................................................
Operation and Display Panel ......................................................................................................................... 12
LCD Display Icons ......................................................................................................................................... 14
LCD setting .................................................................................................................................................... 14
Fault Reference Code .................................................................................................................................... 19
Warning Indicator ........................................................................................................................................... 21
Operating State Description ........................................................................................................................... 21
Disply setting .................................................................................................................................................. 21
SPECIFICATIONS ........................................................................................................................................... 24
Table 1 Line Mode Specifications ................................................................................................................... 24
Table 2 Inverter Mode Specifications ............................................................................................................. 25
Table 3 Charge Mode Specifications .............................................................................................................. 26
Table 4 General Specifications ....................................................................................................................... 27
TROUBLE SHOOTING ..................................................................................................................................... 28
Appendix: Approximate Back-up Time Table ........................................................................................... 29
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ABOUT THIS MANUAL
Purpose
This manual describes the assembly, installation, operation and troubleshooting of this unit. Please read
this manual carefully before installations and operations. Keep this manual for future reference.
Scope
This manual provides safety and installation guidelines as well as information on tools and wiring.
SAFETY INSTRUCTIONS
WARNING: This chapter contains important safety and operating instructions. Read and
keep this manual for future reference.
1. Before using the unit, read all instructions and cautionary markings on the unit, the batteries and all
appropriate sections of this manual.
2. CAUTION --To reduce risk of injury, charge only deep-cycle lead acid type rechargeable batteries.
Other types of batteries may burst, causing personal injury and damage.
3. Do not disassemble the unit. Take it to a qualif ied service center when service or repair is required.
Incorrect re-assembly may result in a risk of electric shock or fire.
4. To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning.
Turning off the unit will not reduce this risk.
5. CAUTION – Only qualified personnel can install this device with battery.
6. NEVER charge a frozen battery.
7. For optimum operation of this inverter/charger, please follow required spec to select appropriate cable
size. It’s very important to correctly operate this inverter/charger.
8. Be very cautious when working with metal tools on or around batteries. A potential risk exists to drop
a tool to spark or short circuit batteries or other electrical parts and could cause an explosion.
9. Please strictly follow installation procedure when you want to disconnect AC or DC terminals. Please
refer to INSTALLATION section of this manual for the details.
10. Fuses (4 pieces of 40A, 32VDC for 2KVA and 6 pieces of 40A, 32VDC for 3KVA) are provided as
over-current protection for the battery supply.
11. GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a permanent grounded
wiring system. Be sure to comply with local requirements and regulation to install this inverter.
12. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input
short circuits.
13. Warning!! Only qualified service persons are able to service this device. If errors still persist after
following troubleshooting table, please send this inverter/charger back to local dealer or service center
for maintenance.
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INTRODUCTION
This is a multi-function inverter/charger, combining functions of inverter, solar charger and battery charger to
offer uninterruptible power support with portable size. Its comprehensive LCD display offers user-configurable
and easy-accessible button operation such as battery charging current, AC/solar charger priority, and
acceptable input voltage based on different applications.
Features
Pure sine wave inverter
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 to mains voltage or generator power
Auto restart while AC is recovering
Overload/ Over temperature/ short circuit protection
Smart battery charger design for optimized battery performance
Cold start function
IP20 rating, avoid direct sunlight
Basic System Architecture
The following illustration shows basic application for this inverter/charger. It also includes following devices to
have a complete running system:
Generator
PV modules (option)
Consult with your system integrator for other possible system architectures depending on your requirements.
This inverter can power all kinds of appliances in home or office environment, including motor-type appliances
such as tube light, fan, refrigerator and air conditioner.
Figure 1 Hybrid Power System
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Product Overview
2-3KVA single model
NOTE: For parallel model installation and Operation,
please check separate parallel installation guide for
the details.
1. LCD display
2. Status indicator
3. Discharging/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. Circuit breaker
12. RS-485 communication port
13. USB
15. Dry Contact
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INSTALLATION
Unpacking and Inspection
Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You should
have received the following items inside of package:
The unit x 1
User manual x 1
Communication cable x 1
USB cable x 1
Software CD x 1
Preparation
Before connecting all wirings, please take off bottom cover by removing two screws as shown below.
Mounting the Unit
Consider the following points before selecting where to install:
⚫ Do not mount the inverter on flammable construction
materials.
⚫ Mount on a solid surface, indoor IP20, avoid direct sunlight
⚫ Install this inverter at eye level in order to allow the LCD
display to be read at all times.
⚫ For proper air circulation to dissipate heat, allow a clearance
of approx. 200 mm to the side and approx. 300 mm above
and below the unit.
⚫ The ambient temperature should be between 0°C and 55°C
to ensure optimal operation.
⚫ The recommended installation position is to be adhered to
the wall vertically.
⚫ Be sure to keep other objects and surfaces as shown in the
below diagram to guarantee sufficient heat dissipation and
to have enough space for removing wires.
SUITABLE FOR MOUNTING ON CONCRETE OR
OTHER NON-COMBUSTIBLE SURFACE ONLY.
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Install the unit by screwing three screws.
Battery Connection
CAUTION: To 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 beaker size.
WARNING! All wiring must be performed by a qualified person.
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 and terminal size as below.
Recommended battery cable and terminal size:
Model
Typical
Amperage
Battery
capacity
Wire Size
Ring Terminal
Torque
value
Cable mm
2
Dimensions
D(mm)
L(mm)
2024
66A
100AH
1*6AWG
14
6.4
29.2
2~ 3 Nm
200AH
2*10AWG
8
6.4
23.8
2~ 3 Nm
3024
100A
100AH
1*4AWG
22
6.4
33.2
2~ 3 Nm
200AH
2*8AWG
14
6.4
29.2
2~ 3 Nm
Please follow below steps to implement battery connection:
1. Assemble battery ring terminal based on recommended battery cable and terminal size.
2. Connect all battery packs as below chart, It’s suggested to connect at least 100Ah capacity battery for
2KVA/3KVA model.
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3. Insert the ring terminal of battery cable flatly into battery connector of inverter and make sure the bolts are
tightened with torque of 2-3 Nm. Make sure polarity at both the battery and the inverter/charge is correctly
connected and ring terminals are tightly screwed to the battery terminals.
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 and the ring
terminal. Otherwise, overheating may occur.
CAUTION!! Do not apply anti-oxidant substance on the terminals before terminals are
connected tightly.
CAUTION!! Before making the final DC connection or closing DC breaker/disconnector, be sure
DC (+) must be connected to DC (+) and DC (-) must be connected to DC (-).
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AC Input/Output Connection
CAUTION!! Before connecting to AC input power source, please install a separate AC breaker between
inverter and AC input power source. This will ensure the inverter can be securely disconnected during
maintenance and fully protected from over current of AC input. The recommended spec of AC breaker is 20A
for 2KVA, 32A for 3KVA.
CAUTION!! There are two terminal blocks with “IN” and “OUT” markings. Please do NOT-misconnect input
and output connectors.
WARNING! All wiring must be performed by qualified personnel.
WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC input
connection. To reduce risk of injury, please use the proper recommended cable size as below.
Suggested cable requirement for AC wires
Model
Gauge
Torque Value
2024
14 AWG
0.8~ 1.0Nm
3024
12 AWG
1.2~ 1.6Nm
Please follow below steps to implement AC input/output connection:
1. Before making AC input/output connection, be sure to open DC protector or disconnector first.
2. Remove insulation sleeve 10mm for six conductors. And shorten phase L and neutral conductor N 3 mm.
3. Insert AC input wires according to polarities indicated on terminal block and tighten the terminal screws. Be
sure to connect PE protective conductor ( ) first.
→Ground (yellow-green)
L→LINE (brown or black)
N→Neutral (blue)
WARNING:
Be sure that AC power source is disconnected before attempting to hardwire it to the unit.
4. Then, insert AC output wires according to polarities indicated on terminal block and tighten terminal screws.
Be sure to connect PE protective conductor ( ) first.
→Ground (yellow-green)
L→LINE (brown or black)
N→Neutral (blue)
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5. Make sure the wires are securely connected.
CAUTION: Appliances such as air conditioner are required at least 2~3 minutes to restart because it's
required to have enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and
recovers in a short time, it will cause damage to your connected appliances. To prevent this kind of damage,
please check manufacturer of air conditioner if it's equipped with time-delay function before installation.
Otherwise, this inverter/charger will trig overload fault and cut off output to protect your appliance but
sometimes it still causes internal damage to the air conditioner.
PV Connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between
inverter and PV modules.
WARNING! All wiring must be performed by a qualified person.
WARNING! It's very important for system safety and efficient operation to use appropriate cable for PV
module connection. To reduce risk of injury, please use the proper recommended cable size as below.
Model
Typical Amperage
Cable Size
Torque
2024/40A
3024/40A
40A
8 AWG
1.4~1.6Nm
2024/60A
3024/60A
60A
8 AWG
1.4~1.6Nm
PV Module Selection:
When selecting proper PV modules, please be sure to consider below parameters:
1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.
2. Open circuit Voltage (Voc) of PV modules should be higher than min. battery voltage.
Solar Charging Mode
INVERTER MODEL
2024/40A
3024/40A
2024/60A
3024/60A
Max. PV Array Open Circuit Voltage
145Vdc
PV Array MPPT Voltage Range
30~130Vdc
Min. battery voltage for PV charge
17Vdc
Please follow below steps to implement PV module connection:
1. Remove insulation sleeve 10 mm for positive and negative conductors
2. Check correct polarity of connection cable from PV modules and PV input
connectors. Then, connect positive pole (+) of connection cable to positive
pole (+) of PV input connector. Connect negative pole (-) of connection cable
to negative pole (-) of PV input connector.
CAUTION: Important
Be sure to connect AC wires with correct polarity. If L and N wires are connected reversely, it may cause AC
short-circuit when these inverters are worked in parallel operation.
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Final Assembly
After connecting all wirings, please put bottom cover back by screwing two screws as shown below.
Communication Connection
Please use supplied communication cable to connect to inverter and PC. Insert bundled CD into a computer
and follow on-screen instruction to install the monitoring software. For the detailed software operation, please
check user manual of software inside of CD.
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Dry Contact Signal
There is one dry contact (3A/250VAC) available on the rear panel. It could be used to deliver signal to external
device when battery voltage reaches warning level.
Unit Status
Condition
Dry contact port
NC & C
NO & C
Power Off
Unit is off and no output is powered.
Close
Open
Power On
Output is powered from “AC in”
Close
Open
Output is
powered
from Battery
or Solar.
Program 01
set as AC
Battery voltage < Low DC
warning voltage
Open
Close
Battery voltage > Setting value
in Program 21 or battery
charging reaches floating stage
Close
Open
Program 01
is set as
SBU，Solar
first
Battery voltage < Setting value
in Program 20
Open
Close
Battery voltage>Setting value in
Program 21 or battery charging
reaches floating stage
Close
Open
OPERATION
Power ON/OFF
Once the unit has been properly installed and the batteries are connected, simply press On/Off switch
(located on the button of the case) to turn on the unit.
Operation and Display Panel
The operation and display panel, shown in below chart, is on the front panel of the inverter. It includes
three indicators, four function keys and a LCD display, indicating the operating status and input/output
power information.
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LED Indicator
LED Indicator
Messages
AC/INV
Green
Solid On
Output is powered by AC in Line mode.
Flashing
Output is powered by battery or PV in battery mode
CHG
Yellow
Flashing
Battery is charging or discharging.
FAULT
Red
Solid On
Fault occurs in the inverter.
Flashing
Warning condition occurs in the inverter.
Function Keys
Function Key
Description
MENU
Enter or exit setting mode or go to previous selection.
UP
Increase the setting data.
DOWN
Decrease the setting data.
ENTER
Enter setting mode and Confirm the selection in setting mode or go to next
selection.
LCD display
LED indicators
Function keys
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LCD Display Icons
Icon
Function description
Input Source Information and Output Information
Indicates the AC information.
Indicates the DC information.
Indicate input voltage, input frequency, PV voltage, battery voltage and
charger current.
Indicate output voltage, output frequency, load in VA, load in Watt and
discharging current.
Configuration Program and Fault Information
Indicates the setting programs.
Indicates the warning and fault codes.
Warning: flashing with warning code.
Fault: lighting with fault code.
Battery Information
Indicates battery level by 0-24%, 25-49%, 50-74% and 75-100% in battery
mode and charging status in line mode.
In AC mode, it will present battery charging status.
Status
Battery voltage
LCD Display
Constant
Current mode /
Constant
Voltage mode
<2V/cell
4 bars will flash in turns.
2 ~ 2.083V/cell
Bottom bar will be on and the other three
bars will flash in turns.
2.083 ~ 2.167V/cell
Bottom two bars will be on and the other
two bars will flash in turns.
> 2.167 V/cell
Bottom three bars will be on and the top
bar will flash.
Batteries are fully charged.
4 bars will be on.
In battery mode, it will present battery capacity.
Load Percentage
Battery Voltage
LCD Display
Load >50%
< 1.717V/cell
1.717V/cell ~ 1.8V/cell
1.8 ~ 1.883V/cell
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> 1.883 V/cell
50%> Load > 20%
< 1.817V/cell
1.817V/cell ~ 1.9V/cell
1.9 ~ 1.983V/cell
> 1.983V/cell
Load < 20%
< 1.867V/cell
1.867V/cell ~ 1.95V/cell
1.95 ~ 2.033V/cell
> 2.033V/cell
Load Information
Indicates overload.
Indicates the load level by 0-24%, 25-49%, 50-74% and 75-100%.
0%~24%
25%~49%
50%~74%
75%~100%
Mode Operation Information
Indicates unit connects to the generator.
Indicates unit connects to the PV panel.
Indicates load is supplied by generator power.
Indicates the solar charger is working.
Indicates the DC/AC inverter circuit is working.
Mute Operation
Indicates unit alarm is disabled.
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LCD Setting
After pressing and holding "ENTER" button for 2 seconds, the unit will enter setting mode. Press
"UP" or "DOWN" button to select setting programs. And then, press "ENTER" or "MENU" button
to confirm the selection and exit.
Setting Programs:
Program
Description
Selectable option
00
Exit setting mode
Escape
01
Output source
priority selection
Solar energy provides power to the loads as first
priority.
If battery voltage has been higher than the setting
in point 21 for 5 minutes, the inverter will turn to
battery mode, solar and battery will provide power
to the load at the same time.
When the battery voltage drops to the setting in
point 20, the inverter will turn to bypass mode,
“AC in” provides power to the load only, and solar
power will charge the battery at the same time.
Solar energy provides power to the loads as first
priority.
If battery voltage has been higher than the setting
in point 21 for 5 minutes, and the solar energy has
been available for 5 minutes, the inverter will turn
to battery mode, solar and battery will provide
power to the load at the same time.
When the battery voltage drops to the setting point
in program 20, the inverter will turn to bypass
mode, and “AC in” provides power to the load
only, and the solar will charge the battery at the
same time.
(default)
“AC in” will provide power to the loads as first
priority. Solar and battery energy will provide
power to the loads only when AC power is not
available.
02
AC input voltage
range
Appliances
(default)
If selected, acceptable AC input voltage range will
be within 90-280VAC.
UPS
If selected, acceptable AC input voltage range will
be within 170-280VAC.
VDE
If selected, acceptable AC input voltage range will
conform to VDE4105(184VAC-253VAC)
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GEN
When the user uses the device to connect the
generator，select the generator mode.
03
Output voltage
Set the output voltage (220VAC-240VAC)
04
Output frequency
50HZ(default)
60HZ
05
Solar supply
priority
Solar energy provides power to charge battery as
first priority
(default)
Solar energy provides power to the loads as first
priority
06
Overload bypass:
When enabled,
the unit will
transfer to line
mode if overload
occurs in battery
mode.
Bypass disabled
Bypass enabled
(default)
07
Auto restart
when overload
occurs
Restart disabled
(default)
Restart enabled
08
Auto restart
when over
temperature
occurs
Restart disabled
(default)
Restart enabled
10
Charger source
priority: To
configure charger
source priority
If this inverter/charger is working in Line, Standby or Fault mode,
charger source can be programmed as below:
Solar first
Solar energy will charge battery as first priority.
AC will charge battery only when solar energy is
not available.
Solar and AC
(default)
Solar energy and AC will charge battery at the
same time.
Only Solar
Solar energy will be the only charger source.
If this inverter/charger is working in Battery mode or Power saving
mode, only solar energy can charge battery. Solar energy will charge
battery if it's available and sufficient.
11
Maximum
charging current:
To configure total
charging current
40A (default)
Setting range is from 1 A to 70A.
Increment of each click is 1A.
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for solar and
generator.(Max.
charging
current=AC
current +solar
charging current)
60A (default)
Setting range is from 1 A to 80A.
Increment of each click is 1A.
13
Maximum AC
charging current
20A (default)
30A(Maximum current)
14
Battery type
AGM (default)
Flooded
GEL
LEAD
Lithium Ion
User-Defined
If "User-Defined" LI is selected, battery charge voltage and low
DC cut-off voltage can be set up in program 17, 18 and 19.
17
Bulk charging voltage
(C.V voltage)
24V model default setting: 28.2V
If self-defined is selected in program 14, this program can be set
up. Setting range is from 24.0V to 29.2V for 24Vdc model.
Increment of each click is 0.1V
18
Floating charging voltage
24V model default setting: 27.0V
If self-defined is selected in program 14, this program can be set
up. Setting range is from 24.0V to 29.2V for 24Vdc model.
Increment of each click is 0.1V
19
Low DC cut off battery
voltage setting
24V model default setting: 20.4V
If self-defined is selected in program 14, this program can be set
up. Setting range is from 20.0V to 24.0V for 24Vdc model.
Increment of each click is 0.1V. Low DC cut-off voltage will be
fixed to setting value no matter what percentage of load is
connected
20
Battery stop discharging
voltage when AC is
available
Available options for 24V models:
23V (default)
Setting range is from 22.0V to
29.0V
Increment of each click is 0.1V
21
Battery stop charging
Available options for 24V models:
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voltage when AC is
available
27.0V (default)
Setting range is from 22.0V to
29.0V.
Increment of each click is 0. 1V
22
Auto turn page
(default)
If selected, the display screen
will auto turn the display page.
If selected, the display screen
will stay at latest screen user
finally switches.
23 Backlight control
Backlight on
Backlight off (default)
24 Alarm control
Alarm on (default)
Alarm off
25 Beeps while primary source
is interrupted
Alarm on
Alarm off (default)
27 Record Fault code
Record enable (default)
Record disabled
After pressing and holding “MENU” button for 6 seconds, the unit will enter reset model. Press “UP” and
“DOWN” button to select programs. And then, press “ENTER” button to exit.
(default)
Reset setting disable
Reset setting enable
Fault Reference Code
Fault Code
Fault Event
Icon on
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01
Fan is locked when inverter is off
02
Inverter transformer over temperature
03
battery voltage is too high
04
Battery voltage is too low
05
Output short circuited
06
Inverter output voltage is high
07
Overload time out
08
Inverter bus voltage is too high
09
Bus soft start failed
11
Main relay failed
21
Inverter output voltage sensor error
22
Inverter “AC in” voltage sensor error
23
Inverter output current sensor error
24
Inverter “AC in” current sensor error
25
Inverter load current sensor error
26
Inverter “AC in” over current error
27
Inverter radiator over temperature
31
Solar charger battery voltage class error
32
Solar charger current sensor error
33
Solar charger current is uncontrollable
41
Inverter “AC in” voltage is low
42
Inverter “AC in” voltage is high
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43
Inverter “AC in” under frequency
44
Inverter “AC in” over frequency
51
Inverter over current protection error
52
Inverter bus voltage is too low
53
Inverter soft start failed
55
Over DC voltage in AC output
56
Battery connection is open
57
Inverter control current sensor error
58
Inverter output voltage is too low
Warning Indicator
Warning
Code
Warning Event
Icon flashing
61
Fan is locked when inverter is on.
62
Fan 2 is locked when inverter is on.
63
Battery is over-charged.
64
Low battery
67
Overload
70
Output power derating
72
Solar charger stops due to low battery.
73
Solar charger stops due to high PV voltage.
74
Solar charger stops due to over load.
75
Solar charger over temperature.
76
PV charger communication error.
77
Parameter error.
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Operating State Description
Operation state
Description
LCD display
Inverter state
PV energy is charging the battery
and generator is providing power
to the AC load.
PV is on
PV is off
Charge state
PV energy and generator are
charging the battery.
Bypass state
Error are caused by inside circuit
error or external reasons such as
over temperature, output short
circuited and so on.
Off-Grid state
The inverter will provide output
power from battery and PV
power.
Inverter power loads from PV energy
Inverter power loads from battery and PV energy
Inverter power loads from battery only
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Display Setting
The LCD display information will be switched in turns by pressing "UP" or "DOWN" key. The selectable
information is switched as below order: battery voltage, battery current, inverter voltage, inverter current, AC
voltage, AC current, load in Watt, load in VA, AC frequency, inverter frequency, PV voltage, PV charging power,
PV charging output voltage, PV charging current.
Stop state
The inverter stopped working.
Turn off the inverter by the soft
key and restart it.
Selectable information
LCD display
Battery voltage/DC discharging
current
Inverter output
voltage/Inverter output
current
“AC in” voltage/ “AC in” current
Load in Watt/VA
“AC in” frequency/Inverter
frequency
PV voltage and power
PV charger output voltage and
MPPT charging current
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SPECIFICATIONS
Table 1 Line Mode Specifications
INVERTER MODEL
2024
3024
Input Voltage Waveform
Sinusoidal
Nominal Input Voltage
230Vac
Low Loss Voltage
90Vac±7V(APL, GEN); 170Vac±7V(UPS)
186Vac±7V(VDE)
Low Loss Return Voltage
100Vac±7V(APL, GEN);180Vac±7V(UPS)
196Vac±7V(VDE)
High Loss Voltage
280Vac±7V(APL, UPS,GEN)
253Vac±7V(VDE)
High Loss Return Voltage
270Vac±7V(APL, UPS,GEN)
250Vac±7V(VDE)
Max AC Input Voltage
300Vac
Nominal Input Frequency
50Hz / 60Hz (Auto detection)
Low Loss Frequency
40HZ±1HZ(APL, UPS,GEN)
47.5HZ±0.05HZ(VDE)
Low Loss Return Frequency
42HZ±1HZ(APL, UPS,GEN)
47.5HZ±0.05HZ(VDE)
High Loss Frequency
65HZ±1HZ(APL, UPS,GEN)
51.5HZ±0.05HZ(VDE)
High Loss Return Frequency
63HZ±1HZ(APL, UPS,GEN)
50.05HZ±0.05HZ(VDE)
Output Short Circuit Protection
Line mode: Circuit Breaker
Battery mode: Electronic Circuits
Efficiency (Line Mode)
>95% ( Rated R load, battery full charged )
Transfer Time
10ms typical (UPS, VDE)
20ms typical (APL)
Output power derating:
When AC input voltage drops to
170V depending on models, the
output power will be de-rated
230Vac model:
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Table 2 Inverter Mode Specifications
INVERTER MODEL
2024
3024
Rated Output Power
2KVA/1.6KW
3KVA/2.4KW
Output Voltage Waveform
Pure Sine Wave
Output Voltage Regulation
230Vac±5%
Output Frequency
60Hz or 50Hz
Peak Efficiency
90%
Overload Protection
5s@≥150% load; 10s@110%~150% load
Surge Capacity
2* rated power for 5 seconds
Nominal DC Input Voltage
24Vdc
Cold Start Voltage
23.0Vdc
Low DC Warning Voltage
@ load < 20%
22.0Vdc
@ 20% ≤ load < 50%
21.4Vdc
@ load ≥ 50%
20.2Vdc
Low DC Warning Return Voltage
@ load < 20%
23.0Vdc
@ 20% ≤ load < 50%
22.4Vdc
@ load ≥ 50%
21.2Vdc
Low DC Cut-off Voltage
@ load < 20%
21.0Vdc
@ 20% ≤ load < 50%
20.4Vdc
@ load ≥ 50%
19.2Vdc
High DC Recovery Voltage
29Vdc
High DC Cut-off Voltage
30Vdc
No Load Power Consumption
<20W
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Table 3 Charge Mode Specifications
AC Charging Mode
INVERTER MODEL
2024
3024
Charging Current
@Nominal Input Voltage
20/30A
Absorption
Voltage
AGM / Gel/LEAD Battery
25Vdc
Flooded Battery
25Vdc
Refloat Voltage
AGM / Gel/LEAD Battery
27.4Vdc
Flooded Battery
27.4Vdc
Float Voltage
AGM / Gel/LEAD Battery
28.8Vdc
Flooded Battery
28.4Vdc
Charging Algorithm
3-Step(Flooded Battery, AGM/Gel Battery), 4-Step(LI)
Solar Charging Mode
INVERTER MODEL
2024/3024
Charging Current (MPPT)
40Amp
60Amp
System DC Voltage
24Vdc
Operating Voltage Range
30-130Vdc
Max. PV Array Open Circuit Voltage
145Vdc
Max PV Isc
40Amp
60Amp
Standby Power Consumption
2W
Battery Voltage Accuracy
+/-0.3%
PV Voltage Accuracy
+/-2V
Charging Algorithm
3-Step(Flooded Battery, AGM/Gel Battery),4-Step(LI)
Charging algorithm for
lead acid battery
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27
Charging algorithm for
Lithium battery
Joint AC and Solar Charging
INVERTER MODEL
2024/3024
Max Charging Current
70Amp
80Amp
Default Charging Current
40Amp
60Amp
Table 4 General Specifications
INVERTER MODEL
2024
3024
Safety Certification
CE
Back-feed current to array
0 Amp
0 Amp
Inrush current
30 Amp
30 Amp
Max output fault current
10.4 Amp
15.7 Amp
Max output overcurrent
protection
7.7 Amp
11.5 Amp
Operating Temperature Range
0°C to 55°C
Storage temperature
-15°C~ 60°C
Dimension (D*W*H), mm
272x 355 x 125
Net Weight, kg
10.5
11.5
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28
TROUBLE SHOOTING
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
(<1.91V/Cell)
1. Re-charge battery.
2. Replace battery.
No response after
power on.
No indication.
1. The battery voltage is far too
low. (<1.4V/Cell)
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
check if input voltage range
setting is correct
(Appliance→Wide)
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.
Internal temperature of inverter
component is over 90 ℃.
Check whether the air flow of
the unit is blocked or whether
the ambient temperature is too
high.
Fault code 02
Fault code 03
Battery is over charged.
Return to repair center.
The battery voltage is too high.
Check if spec and quantity of
batteries are meet
requirements.
Fault code 01
Fan fault
Replace the fan.
Fault code 06/58
Output abnormal (Inverter
voltage below than 202Vac or is
higher than 253Vac)
1. Reduce the connected load.
2. Return to repair center
Fault code
08/09/53/57
Internal components failed.
Return to repair center.
Fault code 51
Over current or surge.
Restart the unit, if the error
happens again, please return to
repair center.
Fault code 52
Bus voltage is too low.
Fault code 55
Output voltage is unbalanced.
Fault code 56
Battery is not connected well or
fuse is burnt.
If the battery is connected well,
please return to repair center.
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Appendix: Approximate Back-up Time Table
Model
Load (VA)
Backup Time @ 24Vdc 100Ah (min)
Backup Time @ 24Vdc 200Ah (min)
2KVA
200
766
1610
400
335
766
600
198
503
800
139
339
1000
112
269
1200
95
227
1400
81
176
1600
62
140
1800
55
125
2000
50
112
3KVA
300
449
1100
600
222
525
900
124
303
1200
95
227
1500
68
164
1800
56
126
2100
48
108
2400
35
94
2700
31
74
3000
28
67
Note: Backup time depends on the quality of the battery, age of battery and type of battery.
Specifications of batteries may vary depending on different manufacturers.
420-00288-01
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