Anern 3.2KW User manual
1
3.2
KW / 5KW
HYBRID SMART SOLAR SYSTEM
VERSION:1.0
USER MANUAL
2
Table Of Contents
1 ABOUT THIS MANUAL.................................................................................................................................. 3
1.1 PURPOSE ...................................................................................................................................................... 3
1.2 SCOPE........................................................................................................................................................... 3
2 SAFETY INSTRUCTIONS .............................................................................................................................. 3
3 INTRODUCTION ............................................................................................................................................. 4
3.1 FEATURES ..................................................................................................................................................... 4
3.2 BASIC SYSTEM ARCHITECTURE ................................................................................................................... 4
3.3 PRODUCT OVERVIEW ................................................................................................................................... 5
4 INSTALLATION ............................................................................................................................................... 7
4.1 UNPACKING AND INSPECTION ...................................................................................................................... 7
4.2 PREPARATION ............................................................................................................................................... 7
4.3 MOUNTING THE UNIT ................................................................................................................................... 7
4.4 BATTERY CONNECTION ................................................................................................................................ 8
4.5 AC INPUT/OUTPUT CONNECTION ................................................................................................................ 9
4.6 PV CONNECTION ........................................................................................................................................ 10
4.7 FINAL ASSEMBLY ....................................................................................................................................... 10
4.8 COMMUNICATION CONNECTION................................................................................................................. 12
5 OPERATION ................................................................................................................................................... 13
5.1 POWER ON/OFF ........................................................................................................................................ 13
5.2 OPERATION AND DISPLAY PANEL ............................................................................................................... 13
5.3 LCD DISPLAY ICONS .................................................................................................................................. 15
5.4 LCD SETTING ............................................................................................................................................ 17
5.5 DISPLAY SETTING ....................................................................................................................................... 24
5.6 OPERATING MODE DESCRIPTION ............................................................................................................... 27
5.7 BATTERY EQUALIZATION DESCRIPTION ..................................................................................................... 29
5.8 FAULT REFERENCE CODE ........................................................................................................................... 31
5.9 W
ARNING INDICATOR ................................................................................................................................. 31
6 SPECIFICATIONS ......................................................................................................................................... 32
TABLE 1 LINE MODE SPECIFICATIONS ...................................................................................................................... 32
TABLE 2 INVERTER MODE SPECIFICATIONS .............................................................................................................. 33
TABLE 3 CHARGE MODE SPECIFICATIONS ................................................................................................................. 34
TABLE 4 GENERAL SPECIFICATIONS .......................................................................................................................... 34
7 TROUBLE SHOOTING ................................................................................................................................. 35
8 APPENDIX: APPROXIMATE BACK-UP TIME TABLE .......................................................................... 36
3
1 ABOUT THIS MANUAL
1.1 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.
1.2 Scope
This manual provides safety and installation guidelines as well as information on tools and wiring.
2 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 qualified 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. One piece of 150A fuse is 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.
4
3 INTRODUCTION
This is a multi-function inverter/charger/solar system, 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. Users can flexibly match battery capacity.
3.1 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
Users can select standard battery packages or external batteries
3.2 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 or Utility.
PV modules
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
5
Product Overview
1. LCD display
2. AC output Reserve
3. Power on/off switch
4. DC breaker
5. PV input
6. AC output
7. AC input
8. Communication port
9. GND terminal
10. Circuit breaker
6
ENERGY BOX：
1.Built-in battery specification to select 100AH-250AH/12V.
2. Battery shall be put in sequence according to the direction shown in the picture.
3. Maximum load bearing 300KG.
4. Each battery needs to be fixed with a scaffold.
5. Note that the battery connection terminal is not in contact with the battery box.
External battery method
1. Users can set up their own external batteries according to their own needs.
2. The external battery pack voltage shall be in line with the system requirement voltage（3.2KW/24V
5KW/48V），Battery capacity reference back-up time.
3. The external battery access location is the DC breaker input side. Note the positive and negative polarity
of the battery, and the battery pack cannot be short-circuited.
4. Please keep DC breaker in OFF state before accessing the battery pack.
7
4 INSTALLATION
4.1 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
Software CD x 1
DC Fuse x 1
Ring terminal x 1
4.2 Preparation
Before connecting all wirings, please take off bottom cover by removing two screws as shown below.
4.3 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
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. 20 cm to the side and approx. 50
cm 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 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.
8
4.4 Battery Connection
CAUTION: For 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 breaker size.
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 the proper recommended cable as below.
If the customer chooses the external battery.
Recommended battery cable size:
Model Wire Size Cable (mm
2
) Torque value（max）
3.2KW/5KW 1 x 2AWG 35 2 Nm
Please follow below steps to implement battery connection:
1. Remove insulation sleeve 18 mm for positive and negative conductors.
2. Suggest to put bootlace ferrules on the end of positive and negative wires
with a proper crimping tool.
3. Fix strain relief plate to the inverter by supplied screws as shown in below
chart.
4. Connect all battery packs as below chart.
5. .Insert the battery wire flat into the DC breaker input side to ensure that the bolt is tightened 2nm clockwise.
Ensure that the polarity between the battery and the inverter / charging is connected correctly, and the wire is
tightly screwed into the DC breaker terminal.
WARNING: Shock Hazard
Installation must be performed with care due to high battery voltage in series.
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
(-).
9
4.5 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 32A for
3.2KVA and 50A for 5KVA.
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 a 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 Cable (mm2) Torque Value
3.2KW 12 AWG 4 1.2 Nm
5KW 10 AWG 6 1.2 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 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)
5. Make sure the wires are securely connected.
10
4.6 PV Connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter
and PV modules.
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 Wire Size Cable (mm
2
) Torque value（max）
3.2KW/5KW 1 x 12AWG 4 1.2 Nm
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.
INVERTER MODEL 3.2KW 5KW
Max. PV Array Open Circuit Voltage 500Vdc
PV Array MPPT Voltage Range 120Vdc~450Vdc
Take 250Wp PV module as an example. After considering above two parameters, the recommended module
configurations are listed as below table.
Solar Panel Spec.
(reference)
- 250Wp
- Vmp: 30.1Vdc
- Imp: 8.3A
- Voc: 37.7Vdc
- Isc: 8.4A
- Cells: 60
SOLAR INPUT Q'ty of panels
Total input
power
(Min in serial: 6 pcs, max. in serial: 13 pcs)
6 pcs in serial 6 pcs 1500W
8 pcs in serial 8 pcs 2000W
12 pcs in serial 12 pcs 3000W
13 pcs in serial 13 pcs 3250W
8 pieces in serial and 2 sets in parallel 16 pcs 4000W
10 pieces in serial and 2 sets in parallel 20 pcs 5000W
PV Module Wire Connection
4.7 Final Assembly
After connecting all wirings, please put bottom cover back by screwing two screws as shown below.
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.
12
4.7 Communication Connection
1． 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.
2． Wi-Fi cloud communication (option):
Please use supplied communication cable to connect to inverter and Wi-Fi module. Download APP and installed
from APP store, and Refer to “Wi-Fi Plug Quick Installation Guideline” to set up network and registering. The
inverter status would be shown by mobile phone APP or webpage of computer.
3． GPRS cloud communication (option):
Please use supplied communication cable to connect to inverter and GPRS module, and then applied external
power to GPRS module. Download APP and installed from APP store, and Refer to “GPRS RTU Quick Installation
Guideline” to set up network and registering. The inverter status would be shown by mobile phone APP or
webpage of computer.
13
5 OPERATION
5.7 Power ON/OFF
Side view of unit
Once the unit has been properly installed and the batteries are connected well, simply press On/Off switch
(located on the button of the case) to turn on the unit.
5.8 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.
LED Indicator
LED Indicator Messages
Green Solid On Output is powered by utility in Line mode.
Flashing Output is powered by battery or PV in battery mode.
Green Solid On Battery is fully charged.
Flashing Battery is charging.
LCD display
LED indicators
Function keys
14
Red Solid On Fault occurs in the inverter.
Flashing Warning condition occurs in the inverter.
Function Keys
Function Key Description
ESC To exit setting mode
UP To go to previous selection
DOWN To go to next selection
ENTER To confirm the selection in setting mode or enter setting mode
15
5.9 LCD Display Icons
Icon Function description
Input Source Information
Indicates the AC input.
Indicates the PV input
Indicate input voltage, input frequency, PV voltage, charger ,charger power,
battery voltage.
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
Output Information
Indicate output voltage, output frequency, load percent, load in VA, load in
Watt and discharging current.
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.
Floating mode. Batteries are fully charged. 4 bars will be on.
16
In battery mode, it will present battery capacity.
Load Percentage Battery Voltage LCD Display
Load >50%
< 1.85V/cell
1.85V/cell ~ 1.933V/cell
1.933V/cell ~ 2.017V/cell
> 2.017V/cell
Load < 50%
< 1.892V/cell
1.892V/cell ~ 1.975V/cell
1.975V/cell ~ 2.058V/cell
> 2.058V/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 mains.
Indicates unit connects to the PV panel.
Indicates load is supplied by utility power.
Indicates the utility charger circuit is working.
Indicates the DC/AC inverter circuit is working.
Mute Operation
Indicates unit alarm is disabled.
17
5.10 LCD Setting
After pressing and holding ENTER button for 3 seconds, the unit will enter setting mode. Press “UP” or “DOWN”
button to select setting programs. And then, press “ENTER” button to confirm the selection or ESC button to
exit.
Setting Programs:
Program
Description Selectable option
00 Exit setting mode
Escape
01
Output source priority:
To configure load power
source priority
Utility first (default)
Utility will provide power to the
loads as first priority.
Solar and battery energy will
provide power to the loads only
when utility power is not available.
Solar first
Solar energy provides power to
the loads as first priority.
If solar energy is not sufficient to
power all connected loads, utility
will supply power to the loads at
the same time.
Battery provides power to the
loads only when any one condition
happens:
- Solar energy and utility is not
available.
- Solar energy is not sufficient and
utility is not available.
SBU priority
Solar energy provides power to
the loads as first priority.
If solar energy is not sufficient to
power all connected loads, battery
energy will supply power to the
loads at the same time.
Utility provides power to the loads
only when battery voltage drops
to either low-level warning voltage
or the setting point in program 12.
02
Maximum charging current:
To configure total charging
current for solar and utility
chargers.
(Max. charging current =
utility charging current +
solar charging current)
10A
20A
30A
40A
18
50A
60A (default)
70A
80A
03 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.
05 Battery type
AGM (default)
Flooded
User-Defined
If “User-Defined” is selected,
battery charge voltage and low DC
cut-off voltage can be set up in
program 26, 27 and 29.
06 Auto restart when overload
occurs
Restart disable (default)
Restart enable
07 Auto restart when over
temperature occurs
Restart disable (default)
Restart enable
09 Output frequency
50Hz (default)
60Hz
10 Output voltage
220V
230V (default)
240V
11
Maximum utility charging
current
Note: If setting value in
program 02 is smaller than
that in program in 11, the
inverter will apply charging
current from program 02 for
utility charger.
2A
10A
20A
30A (default)
40A
50A
19
60A
80A
12
Setting voltage point back
to utility source when
selecting “SBU priority” or
“Solar first” in program 01.
Available options in 3.2KVA model:
22.0V
22.5V
23.0V (default)
23.5V
24.0V
24.5V
25.0V
25.5V
Available options in 5KVA model:
44V
45V
46V (default)
47V
48V
49V
50V
51V
13
Setting voltage point back
to battery mode when
selecting “SBU priority” or
“Solar first” in program 01.
Available options in 3.2KVA model:
Battery fully charged
24V
20
24.5V
25V
25.5V
26V
26.5V
27V (default)
27.5V
28V
28.5V
29V
Available options in 5KVA model:
Battery fully charged
48V
49V
50V
51V
52V
53V
54V (default)
55V
56V
57V
58V
This manual suits for next models
1
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