User Manual
Table of Contents
ABOUT THIS MANUAL ..................................................................................................................... 1
Purpose ................................................................................................................................................ 1
Scope ................................................................................................................................................... 1
IMPORTANT SAFETY INSTRUCTIONS ............................................................................................. 1
INTRODUCTION .............................................................................................................................. 2
Features ............................................................................................................................................... 2
Basic System Architecture ...................................................................................................................... 2
Product Overview .................................................................................................................................. 3
INSTALLATION ................................................................................................................................ 4
Unpacking and Inspection ...................................................................................................................... 4
Preparation ........................................................................................................................................... 4
Mounting the Inverter/charger ............................................................................................................... 4
Grounding ............................................................................................................................................. 5
Battery Connection ................................................................................................................................ 5
AC Input/Output Connection .................................................................................................................. 6
PV Connection ....................................................................................................................................... 7
Final Assembly ...................................................................................................................................... 8
Communication Connection .................................................................................................................... 9
OPERATION ................................................................................................................................... 10
Power ON/OFF .................................................................................................................................... 10
Operation and Display Panel ................................................................................................................. 10
LCD Display Icons ................................................................................................................................ 11
LCD Setting ......................................................................................................................................... 13
Display Setting .................................................................................................................................... 17
Operating Mode Description ................................................................................................................. 20
Fault Reference Code ........................................................................................................................... 21
Warning Indicator ................................................................................................................................ 21
SPECIFICATIONS .......................................................................................................................... 22
Table 1: Line Mode Specif ications ......................................................................................................... 22
Table 2: Inverter Mode Specifications ................................................................................................... 23
Table 3: Charging Mode Specifications .................................................................................................. 24
Table 4 General Specifications .............................................................................................................. 24
TROUBLESHOOTING ..................................................................................................................... 25
1
ABOUT THIS MANUAL
Purpose
This manual describes the assembly, installation, operation and troubleshooting of this inverter/charger.
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.
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS– This manual contains important instructions that shall be
followed during installation and maintenance of the power conversion system
(Inverter/Charger).
1. Before using the inverter/charger, read all instructions and warnings marked on the inverter/charger,
the batteries and all appropriate sections of this manual.
2. CAUTION --To reduce risk of injury, charge it with only Li-ion type rechargeable batteries. It might
cause burst or result in physical injury and damage if you charge it with other types of the batteries.
3. Do not disassemble the inverter/charger at will. For servicing or repairs, it’s advised to take it to an
authorized service center. Incorrect re-assembly may result in a risk of electric shock or fire.
4. To reduce the risk of electric shock, unplug all wirings from the wall outlet before any maintenance or
cleaning. Turning off the inverter/charger 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 the batteries. A potential risk exists when
you drop tools on or around the batteries. Spark, short circuited batteries or other electrical parts might
cause an explosion.
9. Please strictly follow installation procedure when you want to disconnect AC or DC terminals. Please
refer to the INSTALLATION section of this manual for the details.
10. Fuses are provided for over-current protection of 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/charger.
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 staffs are able to operate this device. If errors still persist after
following the troubleshooting table, please send this inverter/charger back to the local dealer or service
center for maintenance.
14. The DC and AC circuits are isolated from the enclosure and that system grounding. If it’s required to be
compliance with Section 250 of the National Electrical Code, ANSI/NFPA 70, it’s is the responsibility of
the installer.
15. The Photovoltaic System Grounding shall be installed per the requirements of Section 690.41 through
690.47 of the National Electrical Code, ANSI/NFPA 70 and is the responsibility of the installer.
2
INTRODUCTION
This is a multi-functional inverter/charger, combining the functions of inverter, MPPT solar charger and battery
charger to offer uninterruptible power support with portability. Its comprehensive LCD display offers
user-configurable and easy-accessible button operation such as battery charging current, priority setting for
AC/solar charger, and acceptable input voltage setting to suit different applications.
Features
Pure sine wave inverter
Built-in MPPT solar charge controller
Configurable input voltage range for home appliances and personal computers via LCD setting
Configurable battery charging current to suit different applications via LCD setting
Configurable priority of AC/Solar Charger via LCD setting
Compatible to mains voltage or generator power
Automatic restart while AC is recovering
Overload/ Over temperature/ short circuit protection
Smart battery charger design to optimize battery performance
Cold start function
Basic System Architecture
The following illustration shows basic application of this inverter/charger. It also includes the following devices
to complete the whole running system:
Generator or Utility.
PV modules
Consult your system integrator for other possible system architectures depending on your requirements.
This inverter/charger can power all kinds of appliances at home or in the office, including motor-type
appliances such as tube light, fan, refrigerator and air conditioner.
Figure 1 Hybrid Power System
3
Product Overview
1. LCD display
2. Status indicator
3. 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. RS232 communication port
13. RS-485 communication port (Reserved)
14. Grounding
4
INSTALLATION
Unpacking and Inspection
Before installation, please inspect the inverter/charger. Be sure that nothing inside the package is damaged. You
should have received the following items inside the package:
The inverter/charger x 1
User manual x 1
Communication cable x 2 (RS232 cable and RS485 cable)
Software CD x 1
Preparation
Before connecting all wirings, please take off the cover of the bottom by removing the two screws as shown
below.
Mounting the Inverter/charger
Consider the following points before selecting where to install:
Do not mount the inverter/charger on any flammable
construction materials.
Mount this inverter/charger on a solid surface, like board
(thickness ≥ 15mm), metal frame, or cement wall.
Install this inverter/charger at eye level in order to read the LCD
display at all times.
The ambient temperature should be between 0°C and 55°C to
ensure optimal operation.
The inverter/charger should be adhered to the wall vertically.
Be sure to keep other objects away and leave the space in a
minimum as shown in the right diagram to guarantee
sufficient heat dissipation and enough space for replacing
wires.
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER
NON-COMBUSTIBLE SURFACE ONLY.
Install the inverter/charger by screwing three screws as shown in the diagram.
It’s recommended to use M4 or M5 screws.
5
Grounding
CAUTION: For safety, it’s requested to connect the device to the ground first. Proper grounding can not only
remove the unwanted “electrical noise” but can even make surge protection device work better. Please refer to
the typical requirement in the table below as required grounding cables.
Suggested cable requirement for grounding
Gauge
Torque Value
Color
8 AWG
2.52 Nm
Green
Please refer to the diagram below to complete the grounding:
Battery Connection
CAUTION: For safety operation and regulation compliance, it’s requested to install a separate DC over-current
protector or disconnect the device between battery and inverter/charger. It may not be necessary to
disconnect the device for some applications, however, it’s requested to have over-current protection installed.
Please refer to the typical amperage in the table below as required fuse or size of the breaker.
CAUTION: To reduce the risk of f ire, connect only to a Battery circuit provided with 50 amperes maximum
branch-circuit overcurrent protection in accordance with the NEC, ANSI/NFPA 70.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It's very important for system safety and efficient operation to use
appropriate cable for battery connection. To reduce risk of injury, please use
proper cables and suitable size of terminal recommended below.
Recommended battery cables and size of terminal:
Model
Typical
Amperage
Battery
Capacity
Wire Size
Ring Terminal
Torque Value
Cable
mm2
Dimensions
D (mm)
L (mm)
2KVA 48V
33A
100AH
1*10AWG
5
6.4
22.5
2.07~ 2.3 Nm
Please follow the steps below to implement the battery connection:
1. Assemble battery ring terminal according to the recommended battery cable and terminal size.
2. Connect all battery packs according to the requirement of the inverter/charger. It’s suggested to connect at
least 100Ah capacity battery.
3. Insert the ring terminal of battery cable flatly into battery connector of inverter/charger and make sure the
bolts are tightened with torque of 2-3 Nm. Make sure polarities at both the battery and the
inverter/charger is correctly connected and ring terminals are tightly screwed to the battery terminals.
Ring terminal:
6
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/charger terminal and the
ring terminal. Otherwise, overheating may occur.
CAUTION!! Do not apply any anti-oxidant substance on the terminals before the terminals are
connected tightly.
CAUTION!! Before making the final DC connection or closing DC breaker/disconnector, be sure
positive (+) must be connected to positive (+) and negative (-) must be connected to negative (-).
AC Input/Output Connection
CAUTION!! To reduce the risk of fire, connect only to an AC line circuit provided with 30 amperes maximum
branch-circuit overcurrent protection in accordance with the National Electric Code, ANSI/NFPA 70 by the
installer.
CAUTION!! There are two terminal blocks with “IN” and “OUT” markings. Please do NOT mis-connect input
and output connectors.
WARNING! All wiring must be performed by the 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 recommended cable size as below.
Suggested cable requirement for AC wires
Gauge
Torque Value
12 AWG
2.07~ 2.3 Nm
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 from the six conductors. And short-circuit 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)
7
WARNING:
Be sure that AC power source is disconnected before attempting to hardwire it to the
inverter/charger.
4. Then, insert AC output wires according to polarities indicated on terminal block and fasten the terminal
screws. Be sure to connect PE protective conductor ( ) first.
→ Ground (yellow-green)
L→ LINE (brown or black)
N→ Neutral (blue)
5. Make sure the wires are securely connected.
PV Connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between the
inverter/charger and PV modules.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It's very important for system safety and efficient operation to use appropriate cable for PV
module connection.
To reduce risk of injury, please use the recommended cable size as below.
Typical Amperage
Cable Size
Torque
45 A
6 AWG
3.6 Nm
PV Module Selection:
When selecting proper PV modules, please be sure to consider the parameters below:
1. Open circuit Voltage (Voc) of PV modules can’t exceed the maximum voltage of the PV array open circuit of
the inverter/charger.
CAUTION: Important
Be sure to connect AC wires with correct polarity. If L and N wires are connected reversely, it may cause utility
short-circuited.
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 with
the manufacturer of the air conditioner if it’s equipped with time-delay function before installation. Otherwise,
this inverter/charger will cause overload fault and cut off the output to protect your appliance but sometimes it
still causes internal damage to the air conditioner.
CAUTION: Important
Be sure that the AC output / neutral is not bonded to ground inside of the inverter.
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