Replus IH3KW-48-V User manual

User manual
SineON Series
IH3KW-48-V
Customer Service
Renesola South Africa (Pty) Ltd.
Admin Adress: Building F,Upper Grayston Oce Park,
152 Ann Crescent,Sandton,Gauteng,South Africa 2196
Warehouse,Sales and Technical Address:Unit 2,
Rambo Junction,400 Roan Crescent,Corporate Park
North,Randjes Park Ext.129,Midrand,South Africa.
Email: [email protected]
Web: www.renesola.com (NYSE: SOL)

1 Introducon 1
2 Important Safety Warning 2
3 Unpacking & Overview
Installaon
Grid (Ulity) Connecon
4
3.1 Packing List 4
3.2 Product Overview
4.1 Selecng Mounng Locaon
4.2 Mounng Unit
4
5
5
6
4
5
PV Module (DC) Connecon
6
5.1 Protecon 7
7
5.2 Connecng to the AC Ulity 8
12.1 Interface 27
12.2 LCD Informaon Define 27
12.3 Buon Definion 28
12.4 Query Menu Operaon 29
12.5 Operaon Mode & Display 32
16.1 Warning List 40
16.2 Fault Reference Codes 41
9
Baery Connecon
711
Load (AC Output) Connecon
812
Communicaon
913
Commissioning
10 14
Inial Setup
11 15
Operaon
12 27
Charging Management
13 36
Applicaons with Energy Meter
14 38
Maintenance & Cleaning
15 39
Trouble Shoong
16 40
Specificaons
17 45
Content
Thank you very much for selecng our product!
This manual provides important informaon and suggesons with
respect to installaon, use and troubleshoong. Please read this
manual carefully before installing or using the product and pay close
aenon to the safety recommendaons.
The inverter is warranted to be free from defects for a period of two
years from date of shipment to the original end user.
Noce: ReneSola® is not responsible for any damage to the controller
due to lightning strikes, misuse, incorrect baery parameters used,
unreasonable system configuraon, unauthorized repairs or
exceeding the specified parameter.
Warranty:

This hybrid PV inverter can provide power to connected loads
by ulizing PV power, ulity power and baery power.
Before using the inverter, please read all instrucons and
cauonary markings on the unit and this manual. Store the
manual where it can easily be accessed.
This manual is for qualified personnel only. The tasks described
in this manual may be performed by qualified persons only.
Convenons used:
WARNING! Warnings idenfy condions or pracces that
could result in personal injury.
CAUTION! Cauon idenfy condions or pracces that could
result in damaged to the unit or other equipment connected.
WARNING! Before installing and using this inverter, read all
instrucons and cauonary markings on the inverter and all
appropriate secons of this guide.
Introduction
1Important Safety Warning 2
Figure 1 Basic Hybrid PV System Overview
Depending on different power situaons, this hybrid inverter is
designed to generate connuous power from PV solar modules
(solar panels), baery, and the ulity. When MPP input voltage
of PV modules is within an acceptable range (see specificaon
for details), this inverter can generate power and feed back into
the grid (ulity) while also charging the baeries. This inverter is
only compable with PV module types of single crystalline and
poly crystalline. Do not connect any PV array types other than
these two types of PV modules to the inverter. See Figure 1 for a
simple diagram of a typical solar system with this hybrid
inverter.
Note: When the PV input voltage is lower than 250V the PV input will
de-rate.
1 2
Hybrid inverter
Distribuon Box
Electric grids
PV module
Baery
Load
General Precauon
WARNING! Normally grounded conductors may be ungrounded
and energized when a ground fault is indicated.
WARNING! This inverter is heavy. It should be lied by at least
two persons.
CAUTION! Authorized service personnel should reduce the risk
of electrical shock by disconnecng AC, DC and baery power
from the inverter before aempng any maintenance, cleaning
or working on any circuits connected to the inverter. Turning
off controls will not reduce this risk. Internal capacitors can
remain charged for 5 minutes aer disconnecng all sources of
power.
CAUTION! Do not disassemble this inverter yourself. It contains
no user-serviceable parts. Aempng to service this inverter
yourself may cause a risk of electrical shock or fire and will void
the manufacturer’s warranty.
CAUTION! To avoid a risk of fire and electric shock, make sure
that exisng wiring is in good condion and that the wire is not
undersized. Do not operate the Inverter with damaged or
substandard wiring.

Symbols used in Equipment Markings
Refer to the operang instrucons
Cauon, risk of danger
Cauon, risk of electric shock
Cauon, hot surface
Inverter unit Soware CD Manual USB cable
Before installaon, please inspect the unit. Be sure that nothing
inside the package is damaged. You should have received the
following items in the package:
Unpacking & Overview
3
3.1 Packing List
1) PV connectors
2) Grid connectors
3) Baery connectors
4) AC output connectors (Load connecon)
5) RS-232 communicaon port
6) USB communicaon port
7) Intelligent slot
8) Grounding
9) LCD display panel (Please check secon 10 for detailed LCD
operaon)
10) Operaon buons
3.2 Product Overview
CAUTION! In a high temperature environment, the cover of this
inverter could be hot enough to cause skin burns if accidentally
touched. Ensure that this inverter is away from normal traffic
areas.
3 4
CAUTION! Use only recommended accessories from installer.
Non-appropriate tools may present a risk of fire, electric shock,
or injury to persons.
CAUTION! To reduce the risk of a fire hazard, do not cover or
obstruct the cooling fan.
CAUTION! Do not operate the Inverter if it has received a sharp
blow, been dropped, or damaged in any way. If the Inverter is
damaged, request an RMA (Return Material Authorizaon).
Cauon, risk of electric shock, Energy
storage med discharge

Installation
4
4.1 Selecting Mounting Location
Do not mount the inverter on flammable construcon
materials.
Mount on a solid surface.
This inverter can make noise during operaon which may be
perceived as a nuisance in a living area.
Install this inverter at eye level in order to allow the LCD
display to easily be read.
For proper air circulaon to dissipate heat, allow a clearance
of approx. 20 cm to the side and approx. 50 cm above and
below the unit.
Dusty condions on the unit may impair the performance of
this inverter.
The ambient temperature should be between 0°C and 40°C
and relave humidity should be between 5% and 85% to
ensure opmal operaon.
The recommended installaon posion is to be adhered to
(vercal).
For proper operaon of this inverter, please use appropriate
cables for grid connecon.
The polluon degree of the inverter is PD2. Select an
appropriate mounng locaon. Install the solar inverter in a
protected area that is dry, free of excessive dust and has
adequate air flow. Do NOT operate it where the temperature
and humidity is beyond the specified limits. (Please see
specificaons for limits).
The installaon posion must not prevent access to
disconnects.
This inverter is designed to IP20 specificaons and is for
indoor applicaons only.
Regularly clean the fan filter.
5 6
WARNING! Remember that this inverter is heavy! Please be
carefully when liing out of the package.
WARNING!! FIRE HAZARD.
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER
NON-COMBUSTIBLE SURFACE ONLY.
Consider the following points before selecng where to install:
Installaon to the wall must be implemented with the
appropriate screws and the inverter must be affixed securely.
1. Drill four holes in the
marked locaons with four
screws. Vercal distance
between holes 320mm and
horizontal distance 416.5mm.
2. Place the unit on the surface
and align the mounng holes
of the inverter with the four
drilled holes.
The inverter only can be used in a CLOSED ELECTRICAL
OPERATING AREA.
4.2 Mounting Unit
3. Ensure that the solar
inverter is firmly secured.
Note: Recommended
specificaons for screws.
416.5
320

Model ReneSola SineON IH3KW-48-V
Nominal Grid Voltage 208/220/230/240 VAC
Conductor cross-secon (mm2) 4~6
Ground 64.3 21.8 1.2~ 2 Nm
Grid (Utility) Connection
5
5.1 Preparation
Recommended wire and terminal size:
Wire type Torque value
Cable mm Dimensions
D (mm) L (mm)
Ring Terminal
7 8
CAUTION: To prevent risk of electric shock, ensure that the
ground wire is properly earthed before operang this hybrid
inverter no maer whether the grid is connected or not.
Before connecng to AC ulity, please install a separate AC
circuit breaker between the inverter and AC ulity. This will
ensure that the inverter can be securely disconnected during
maintenance and fully protected from over current on the AC
input side.
NOTE1: Although this inverter is equipped with a 250VAC/30A
fuse, it’s sll necessary to install a separate circuit breaker for
safety consideraon. Please use a 250VAC/30A circuit breaker
between inverter and AC ulity.
NOTE2: The overvoltage category of the AC input is III. It should
be connected to the power distribuon.
5.2 Connecting to the AC Utility
Step 1: Check the grid voltage and frequency with an AC
voltmeter. It should be the same as the “VAC” value on the
product label.
Step 2: Turn off the circuit breaker.
Step 3: Remove 8mm of the
insulaon sleeve on three of the
conductors. Shorten phase L and
neutral conductor N by 3 mm.
Refer to chart 1.
Step 5: Make sure the wires are
securely connected. The reference
ghtening torque is 0.82 N.m.
Step 6: For safe operaon, please use a wire with a ring
terminal to connect grounding. Refer to Chart 3.
L→LINE (brown or red)
→Ground (yellow-green)
N→Neutral (blue or black)
Step 4: Connect wires according to polaries indicated on the
terminal block. Be sure to connect PE protecve conductor
( ) first.
WARNING! It's very important for system safety and efficient
operaon to use the appropriate cables for grid (ulity)
connecon. To reduce risk of injury, please use the proper
recommended cable size as below.
Suggested cable requirement for AC wire
Chart 1
Chart 2
Chart 3
Ring terminal:
2

PV Module (DC) Connection
6
9 10
WARNING: This inverter is non-isolated, therefore only three
types of PV modules are acceptable: single crystalline, poly
crystalline and only class A-rated CIGS modules.
To avoid malfuncon, do not connect PV modules that has a
possibility of leakage current to the inverter. For example,
grounded PV modules will cause leakage current to the
inverter. When using CIGS modules, be sure NOT to ground the
PV modules.
CAUTION: It’s suggested to have a PV juncon box with surge
protecon installed. It will assist to prevent inverter damage
when lightning strikes the PV modules.
CAUTION: Exceeding the maximum input voltage can destroy
the unit!! Check the system before wire connecon.
CAUTION: Never directly touch terminals of the inverter. It may
cause lethal electric shock.
CAUTION: Do NOT touch the inverter to avoid electric shock.
When PV modules are exposed to sunlight, it may generate DC
voltages to the inverter.
CAUTION: Do NOT connect the baery or DC source to the PV
connectors. It will cause damage to the inverter.
CAUTION: Before connecng to PV modules, please install a
separate DC circuit breaker between the inverter and the PV
modules.
NOTE1: Use a 600VDC/25A circuit breaker.
NOTE2: The overvoltage category of the PV input is II.
WARNING! It's very important for system safety and efficient
operaon to use appropriate cable for PV module connecon. To
reduce risk of injury, please use the proper recommended cable
size as below.
Please follow below steps to implement PV module connecon:
Step 1: Check the input voltage of PV array modules. The
acceptable input voltage of the solar inverter is 250VDC -
450VDC. This system is supplied with only one PV array input.
Make sure that that the maximum current from the PV array to
the PV input connector is 18A.
Step 2: Disconnect the circuit breaker.
Step 3: Remove 10mm of the insulaon sleeve for the posive
and negave conductors. Refer to Chart 4.
Step 4: Check for the correct polarity on the connecon cable
from the PV modules and the PV input connectors. Connect the
posive pole (+) of the connecon cable to the posive pole (+)
of the PV input connector. Connect the negave pole (-) of the
connecon cable to the negave pole (-) of PV input connector.
Refer to Chart 5.
Step 5: Make sure that the wires are securely connected.
The reference ghtening torque is 1.22 N.m.
Chart 4 Chart 5
Conductor cross-secon (mm )
4~6
2

Model
Nominal Baery Voltage
Conductor cross-secon (mm2)
ReneSola SineON IH3KW-48-V
48VDC
35
Nominal Grid Voltage
Conductor cross-secon (mm2)
208/220/230/240 VAC
4 ~ 6
CAUTION: It’s only allowed to connect the load to “AC Output
Connector”. Do NOT connect the ulity to “AC Output
Connector”.
CAUTION: Be sure to connect L terminal of load to L terminal of
“AC Output Connector” and N terminal of load to N terminal
of “AC Output Connector”. The G terminal of “AC Output
Connector” is connected to grounding of the load. Do NOT
mis-connect.
CAUTION: This inverter is not allowed to operate in parallel.
Please do NOT parallel connect more than one unit in AC
output connector. This will damage this inverter.
WARNING! It's very important for system safety and efficient
operaon to use appropriately sized cable for baery connecon.
To reduce risk of injury, please use the proper recommended
minimum cable size as below.
Chart 6 Chart 7 Chart 8
Chart 9
Battery Connection
7
11 12
CAUTION: Before connecng to the baeries, please install a
separate DC circuit breaker between the inverter and the
baeries.
NOTE: Use only sealed, vented or Gel lead acid baeries. Check
the minimum and maximum charging voltage and current when
first using this inverter. If using Lithium iron or Nicd baery,
please consult with the installer for the details.
NOTE: Use a 60VDC/100A circuit breaker.
Follow the steps bellow to implement baery connecon:
Step 1: Check the nominal voltage of baeries. The nominal
input voltage for hybrid inverter is 48VDC.
Step 2: Use two baery cables. Remove 12mm from the
insulaon sleeve and insert the bare conductor into cable ring
terminal. Refer to Chart 6.
Step 3: Following baery polarity guide printed near the baery
terminal! Place the external baery cable ring terminal over the
baery terminal. Refer to Chart 7.
RED cable to the posive terminal (+);
BLACK cable to the negave terminal (-).
Step 4: Make sure the wires are securely connected. The
reference ghtening torque is 2.04 N.m.
Load (AC Output) Connection
8
CAUTION: To prevent further supply to the load via the inverter
during any mode of operaon, an addional disconnecon
device should be placed in the building wiring installaon.
WARNING! It's very important for system safety and efficient
operaon to use appropriate cable for AC connecon. To reduce
risk of injury, please use the proper recommended cable size as
below.
Step 1: Remove 8mm from the insulaon sleeve for three
conductors. Shorten phase L and neutral conductor N by 3 mm.
Refer to Chart 8.
Step 2: Connect wires according to polaries indicated on
terminal block. Be sure to connect PE protecve conductor (
Ground symbol to be inserted ) first. Refer to Chart 9.
L→LINE (brown or red)
→Ground (yellow-green)
N→Neutral (blue or black)
Step 3: Make sure the wires are securely connected.
The reference ghtening torque is 0.82 N.m.

The inverter is equipped with RS232 and USB ports and it is
also equipped with a slot for alternave communicaon
interfaces in order to communicate with a PC with
corresponding soware. This intelligent slot is suitable to install
an SNMP card or Modbus card. Follow the procedure below to
connect communicaon wiring and install the soware.
Install monitoring soware on your computer. Detailed
informaon is listed in the next chapter. Aer soware is
installed, you may iniate the monitoring soware and extract
data through the communicaon port.
NOTE: If using the modbus card as your communicaon
interface, install the separately bundled soware. Consult
with your local dealer for more informaon.
Step 1: Check the following requirements before
commissioning:
Ensure the inverter is firmly mounted.
Check if the open circuit DC voltage of PV module meets
requirement (Refer to Secon 6).
Check if the open circuit ulity voltage of the ulity is at
approximately the same as the nominal expected value from
local ulity company.
Check if connecon of AC cable to grid (ulity) is correct if
the ulity is required.
Full connecon to PV modules.
Ensure that the AC circuit breaker (only applied when the
ulity is required), baer circuit breaker and DC circuit
breakers are installed correctly.
Step 2: Switch on the baery circuit breaker and then connect
the PV DC breaker. Aer that, if there is ulity connecon,
switch on the AC circuit breaker. The inverter is now turned on.
There is however no output generaon for loads. Then:
If LCD lights up to display the current inverter status,
commissioning has been successful. Aer pressing “ON”
buon for 1 second when the ulity is detected, the inverter
will start to supply power to the loads. If no ulity exists,
press the “ON” buon for 3 seconds. The inverter will start
to supply power to the loads.
If the red LED lights up, or warning/fault indicator appears
on LCD, an error has occurred. Please inform your installer.
Step 3: Insert CD into your computer and install monitoring
soware in your PC. Follow below steps to install soware.
1. Follow the on-screen instrucons to install the soware.
2. When your computer restarts, the monitoring soware will
appear as shortcut icon located in the system tray.
Communication
9Commissioning 10
For RS232 port, you should use a DB9 cable as follows:
For USB port, you should use a USB cable as follows:
For SNMP or MODBUS card, you should use RJ45 cables as
follows:
13 14

Before inverter operaon, it’s required to set up “Operaon
Mode” via soware. Please strictly follow below steps to set up.
For more details, please check soware manual.
Step 1: Aer turning on the inverter and installing the soware,
please click “Open Monitor” to enter main screen of this
soware.
Step 2: Log in into soware first by entering default password
“administrator”.
Step 3: Select Device Control>>MyPower Management. It is to
set up inverter operaon mode and personalized interface.
Refer to diagram below.
Mode
There are three operaon modes: Grid-e with backup,
Grid-Tie and Off-Grid.
Grid-e with backup: PV power can feed-in back to grid,
provide power to the load and charge baery. There are four
opons available in this mode: Grid-e with backup I, II, III, IV
and V. In this mode, users can configure PV power supply
priority, charging source priority and load supply source
priority. However, when Grid-e with backup IV opon is
selected in PV energy supply priority, the inverter is only
operated between two working logics based on defined peak
me and off-peak me of electricity. Only peak me and
off-peak me of electricity are able to be set up for
opmized electricity usage.
Grid-Tie: PV power only can feed-in back to grid.
Off-Grid: PV power only provides power to the load and
charge baery. No feed-in back to the grid is allowed.
SECTION A:
Standard: It will list local grid standard. It’s requested to have
factory password to make any modificaons. Please check local
dealer only when this standard change is requested.
CAUTION: Incorrect sengs could cause the unit damage or not
working.
SECTION B:
This secon contents may be different based on different
selected types of operaons.
When baery voltage <xx.x V. the AC starts charging: When
selected, once the baery voltage is lower than the seng (xx.x
V), AC will start to charge baery. When this condion is
selected, it’s allowed to enter seng voltage. Otherwise, it’s
impossible to enter any values.
AC charging duraon: This is the me of day that AC (grid) is
allowed to charge baery. When the duraon is set up as
0:00-00:00, there is no me limitaon for AC to charge baery.
AC output ON/Off Timer: Set up on/off me for AC output of
inverter. If seng it as 00:00/00:00, this funcon is disabled.
Nominal Output Voltage: There are 5 opons for high voltage
system to select, 240V, 230V, 220V, 208V and 202V.
Nominal Output Frequency: There are two opons to select,
50HZ or 60HZ.
Initial Setup
11
15 16

Allow to charge baery: This opon is automacally determined
by seng in “Charging source”. It’s not allowed to modify here.
When “NONE” is selected in charging source secon, this opon
becomes unchecked as grey text.
Allow AC to charge baery: This opon is an automacally
determined by seng in ”Charging source” and cannot be
modified here. When “Grid and PV” or “Grid or PV” is selected in
charging source secon, this opon is default selected. Under
Grid-e mode, this opon is invalid.
Allow to feed-in to the Grid: This opon is only valid under
Grid-e and Grid-e with backup modes. Users can decide if this
inverter can feed-in to the grid.
Allow baery to discharge when PV is available: This opon is
automacally determined by seng in “Load supply source (PV
is available)”. When “Baery” is higher priority than “Grid” in
Load supply source (PV is available), this opon is default
selected. Under Grid-e, this opon is invalid.
Allow baery to discharge when PV is unavailable: This opon is
automacally determined by seng in “Load supply source (PV
is unavailable)”. When “Baery” is higher priority than “Grid” in
Load supply source (PV is unavailable), this opon is default
selected. Under Grid-e mode, this opon is invalid.
Allow baery to feed-in to the Grid when PV is available: This
opon is only valid in Grid-e with backup II or Grid-e with
backup III modes.
Allow baery to feed-in to the Grid when PV is unavailable: This
opon is only valid in all opons of Grid-e with backup mode.
PV energy supply priority seng:
1 Baery, 2 Load and 3 Grid.
PV power will charge baery first, then provide power to the
load. If there is any remaining power le, it will feed-in to the
grid.
Baery charging source:
1. PV and Grid (Default)
It is allowed to charge the baery from PV power first. If it’s
not sufficient, grid will charge baery.
2. PV only
Only PV power will be used to charge baery.
3. None
The baery will not be charged by this inverter.
Load supply source:
When PV power is available:
1 PV, 2 Grid, 3 Baery
If baery is not fully charged, PV power will charge baery first.
Remaining PV power will provide power to the load. If it’s not
sufficient, grid will provide power to the load. If grid is not
available at the same me, baery power will back up.
When PV power is not available:
1. 1 Grid, 2 Baery (Default)
Grid will provide power to the load at first. If grid is not
available, baery power will provide power backup.
2. 1 Baery, 2 Grid
Baery power will provide power to the load at first. If
baery power is running out, grid will back up the load.
NOTE: This opon will become ineffecve during AC charging
me and the priority will automacally become 1 Grid and 2
Baery order. Otherwise, it will cause baery damage.
Grid-tie with backup
Grid-e with backup (I) :
st nd rd
st nd
st nd
st nd
st nd
rd
17 18

st nd
PV energy supply priority seng:
1 Load, 2 Baery and 3 Grid.
PV power will provide power to the load first. Then, it will
charge baery. If there is any remaining power le, it will
feed-in to the grid.
Baery charging source:
1. PV and Grid
It’s allowed to charge baery from PV power first. If it’s not
sufficient, grid will charge baery.
2. PV only
It is only allow PV power to charge baery.
3. None
It is not allowed to charge baery no maer it’s PV power or
grid.
Load supply source:
When PV power is available:
1. 1 PV, 2 Baery, 3 Grid
PV power will provide power to the load first. If it’s not
sufficient, baery power will provide power to the load.
When baery power is running out or not available, grid will
back up the load.
2. 1 PV, 2 Grid, 3 Baery
PV power will provide power to the load first. If it’s not
sufficient, grid will provide power to the load. If grid is not
available at the same me, baery power will back up.
When PV power is not available:
1. 1 Grid, 2 Baery: Grid will provide power to the load at
first. If grid is not available, baery power will provide power
backup.
2. 1 Baery, 2 Grid: Baery power will provide power to the
load at first. If baery power is running out, grid will back up the
load
NOTE: This opon will become ineffecve during AC charging
me and the priority will automacally become 1 Grid and 2
Baery order. Otherwise, it will cause baery damage.
Grid-e with backup (II) :
st nd rd
st nd rd
st nd
st nd
st nd
rd
st nd
PV energy supply priority seng:
1 Load, 2 Baery and 3 Grid.
PV power will provide power to the load first. Then, it will
charge baery. If there is any remaining power le, it will
feed-in to the grid.
Baery charging source:
1. PV and Grid
It’s allowed to charge baery from PV power first. If it’s not
sufficient, grid will charge baery.
2. PV only
It is only allow PV power to charge baery.
3. None
It is not allowed to charge baery no maer it’s PV power or
grid.
Load supply source:
When PV power is available:
1. 1 PV, 2 Baery, 3 Grid
PV power will provide power to the load first. If it’s not
sufficient, baery power will provide power to the load.
When baery power is running out or not available, grid will
back up the load.
2. 1 PV, 2 Grid, 3 Baery
PV power will provide power to the load first. If it’s not
sufficient, grid will provide power to the load. If grid is not
available at the same me, baery power will back up.
When PV power is not available:
1. 1 Grid, 2 Baery: Grid will provide power to the load at
first. If grid is not available, baery power will provide power
backup.
2. 1 Baery, 2 Grid: Baery power will provide power to the
load at first. If baery power is running out, grid will back up the
load
NOTE: This opon will become ineffecve during AC charging
me and the priority will automacally become 1 Grid and 2
Baery order. Otherwise, it will cause baery damage.
Grid-e with backup (III):
st nd rd
st nd rd
st nd
st nd
st nd
rd
19 20

Working logic under peak me:
PV energy supply priority: 1 Load, 2 Baery and 3 Grid
PV power will provide power to the load first. If PV power is
sufficient, it will charge baery next. If there is remaining PV
power le, it will feed-in to the grid. Feed-in to the grid is
default disabled.
Baery charging source: PV only
Only aer PV power fully supports the load, the remaining PV
power is allowed to charge baery during peak me.
Load supply source: 1 PV, 2 Baery, 3 Grid
PV power will provide power to the load first. If PV power is not
sufficient, baery power will back up the load. If baery power
is not available, grid will provide the load. When PV power is not
available, baery power will supply the load first. If baery
power is running out, grid will back up the load.
Working logic under off-peak me:
PV energy supply priority: 1 Baery, 2 Load and 3 Grid
PV power will charge baery first. If PV power is sufficient, it will
provide power to the loads. The remaining PV power will feed to
the grid.
NOTE: The max. feed-in grid power seng is available in
parameter seng. Please refer to soware manual.
Baery charging source: PV and grid charge baery
PV power will charge baery first during off-peak me. If it’s not
sufficient, grid will charge baery.
Load supply source: 1 PV, 2 Grid, 3 Baery
When baery is fully charged, remaining PV power will provide
power to the load first. If PV power is not sufficient, grid will
back up the load. If grid power is not available, baery power
will provide power to the load.
Grid-e with backup (IV):
Users are only allowed to set up peak me and off-peak
electricity demand.
st nd rd
st nd rd
st nd rd
rdst nd
PV energy supply priority seng:
1 Load, 2 Baery and 3 Grid
PV power will provide power to the load first. If PV power is
sufficient, it will charge baery next. If there is remaining PV
power le, it will feed-in to the grid.
Baery charging source:
1. PV and Grid: It’s allowed to charge baery from PV power
first. If it’s not sufficient, grid will charge baery.
2. PV only: It is only allow PV power to charge baery.
3. None: It is not allowed to charge baery no maer it’s PV
power or grid.
Load supply source:
When PV power is available:
1. 1 PV, 2 Baery, 3 Grid
PV power will provide power to the load first. If it’s not
sufficient, baery power will provide power to the load.
When baery power is running out or not available, grid will
back up the load.
2. 1 PV, 2 Grid, 3 Baery
PV power will provide power to the load first. If it’s not
sufficient, grid will provide power to the load. If grid is not
available at the same me, baery power will back up.
When PV power is not available:
1. 1 Grid, 2 Baery: Grid will provide power to the load at
first. If grid is not available, baery power will provide power
backup.
2. 1 Baery, 2 Grid: Baery power will provide power to
the load at first. If baery power is running out, grid will back
up the load
NOTE: This opon will become ineffecve during AC charging
me and the priority will automacally become 1 Grid and 2
Baery order. Otherwise, it will cause baery damage.
Grid-e with backup (V): Under this mode, inverter will
automacally disconnect from grid to allow baery to support
loads when baery can not discharge due to high grid voltage.
st nd rd
st nd rd
st nd rd
st nd
st nd
st nd
21 22

PV energy supply priority seng: 1 Load, 2 Baery
PV power will provide power to the load first and then charge
baery. Feed-in to the grid is not allowed under this mode. At
the same me, the grid relay is connected in Inverter mode.
That means the transfer me from inverter mode to baery
mode will be less than 15ms. Besides, it will avoid overload fault
because grid can supply load when connected load is over 3KW.
Baery charging source:
1. PV or Grid: If there is remaining PV power aer supporng
the loads, it will charge baery first. Only unl PV power is
not available, grid will charge baery. (Default)
2. PV only: It is only allow PV power to charge baery.
3. None: It is not allowed to charge baery no maer it’s PV
power or grid.
st nd
Load supply source:
When PV power is available:
1. 1 PV, 2 Baery, 3 Grid (Default)
PV power will provide power to the load first. If it’s not
sufficient, baery power will provide power to the load. When
baery power is running out or not available, grid will back up
the load.
2. 1 PV, 2 Grid, 3 Baery
PV power will provide power to the load first. If it’s not
sufficient, grid will provide power to the load. If grid is not
available at the same me, baery power will back up.
When PV power is not available:
1. 1 Grid, 2 Baery
Grid will provide power to the load at first. If grid is not
available, baery power will provide power backup.
2. 1 Baery, 2 Grid (Default)
Baery power will provide power to the load at first. If baery
power is running out, grid will back up the load.
NOTE: This opon will become ineffecve during AC charging
me and the priority will automacally become 1 Grid and 2
Baery order. Otherwise, it will cause baery damage.
st nd rd
st nd
st nd
st nd
st nd
rd
Grid-Tie
Under this operaon mode, PV power only feeds-in to the
grid. No priority seng is available.
Off-Grid
Off-Grid (I): Default seng for off-grid mode.
PV energy supply priority seng: 1 Baery, 2 Load
PV power will charge baery first. Aer baery is fully charged,
if there is remaining PV power le, it will provide power to the
load. Feed-in to the grid is not allowed under this mode. At the
same me, the grid relay is connected in Inverter mode. That
means the transfer me from inverter mode to baery mode
will be less than 15ms. Besides, it will avoid overload fault
because grid can supply load when connected load is over 3KW.
st nd
Off-Grid (II)
23 24

PV energy supply priority seng: 1 Load, 2 Baery
PV power will provide power to the load first and then charge
baery. Feed-in to the grid is not allowed under this mode. The
grid relay is NOT connected in Inverter mode. That means the
transfer me from inverter mode to baery mode will be less
than 15ms.
st nd
Off-Grid (III)
Baery charging source:
1. PV or Grid: If there is remaining PV power aer supporng
the loads, it will charge baery first. Only unl PV power is
not available, grid will charge baery.
2. PV only: It is only allow PV power to charge baery.
3. None: It is not allowed to charge baery no maer it’s PV
power or grid.
NOTE: It’s allowed to set up AC charging duraon.
Load supply source:
When PV power is available: 1 PV, 2 Grid, 3 Baery
PV power will provide power to the load first. If it’s not
sufficient, grid will provide power to the load. If grid is not
available at the same me, baery power will back up.
When PV power is not available:
1. 1 Grid, 2 Baery: Grid will provide power to the load at
first. If grid is not available, baery power will provide power
backup.
2. 1 Baery, 2 Grid: Baery power will provide power to
the load at first. If baery power is running out, grid will back
up the load.
NOTE: This opon will become ineffecve during AC charging
me and the priority will automacally become 1 Grid and 2
Baery order. Otherwise, it will cause baery damage.
st nd
st nd
st nd
st nd
rd
Baery charging source:
1. PV or Grid: If there is remaining PV power aer supporng
the loads, it will charge baery first. Only unl PV power is
not available, grid will charge baery.
2. PV only: It is only allow PV power to charge baery.
3. None: It is not allowed to charge baery no maer it’s PV
power or grid.
NOTE: It’s allowed to set up AC charging duraon.
Load supply source:
When PV power is available: 1 PV, 2 Baery, 3 Grid
PV power will provide power to the load first. If it’s not
sufficient, baery power will back up the load. Only aer baery
power is running out and stop providing the load, Grid will back
up the load. At this me, baery power is in low level and PV
power only can charge baery when “Allow to charge baery” is
enabled. Only when baery voltage is back to re-discharging
point, PV power will provide power to the load again.
When PV power is not available:
1. 1 Grid, 2 Baery: Grid will provide power to the load at
first. If grid is not available, baery power will provide power
backup.
2. 1 Baery, 2 Grid: Baery power will provide power to the
load at first. If baery power is running out, grid will back up the
load.
NOTE: This opon will become ineffecve during AC charging
me and the priority will automacally become 1 Grid and 2
Baery order. Otherwise, it will cause baery damage.
st nd
st nd
st nd
st nd
rd
25 26

NOTE: If backlight shuts off, you may acvate it by pressing any
buon. When an error occurs, the buzzer will connuously
sound. You may press any buon to mute it.
Display
Buon Operaon Funcon
Funcon
Indicates AC input voltage or frequency.
Vac: voltage, Hz: frequency
ENTER/ON
Short press.
Short press. Return to previous menu.
Short press.
Short press.
Enter query menu.
Press and hold the
buon for approximately
1 second when the ulity
is detected or 3 seconds
without the ulity.
Press and hold the
buon unl the buzzer
connuously sounds.
This inverter is able to provide
power to connected loads via AC
output connector.
If it’s in query menu, press this
buon to jump to next selecon
or decrease value.
Mute alarm in standby mode or
baery mode.
Turn off power to the loads.
Turn off power to the loads.
If it’s in query menu, press this
buon to confirm selecon or
entry.
ESC/OFF
Down
UP
Indicates solar panels.
Icon flashing indicates PV input voltage or is out of
range.
Indicates ulity.
Icon flashing indicates ulity voltage or frequency
is out of range.
Indicates baery condion. And the lace of the
icon indicates baery capacity.
Indicates AC output for loads is enabled and
inverter is providing power to the connected
loads.
Indicates AC output for loads is enabled but there
is no power provided from inverter. At this me,
no baery and the ulity are available. Only PV
power exists but is not able to provide power to
the connected loads.
Indicates PV input voltage or power.
Volt: voltage, KW: power
Indicates baery voltage or percentage.
Volt: voltage, %: percentage
Indicates charging current to baery.
Indicates that the warning occurs.
Indicates that the fault occurs.
Indicates fault code or warning code.
Indicates date and me, or the date and me
users set for querying energy generaon.
Indicates AC output power, voltage, frequency, or
load percentage.
KW: power, Vac: Voltage, Hz: frequency, %: Load
percentage
NOTICE: To accurately monitor and calculate the energy
generaon, please calibrate the mer of this unit via soware
every one month. For the detailed calibraon, please check the
user manual of bundled soware.
Real-me operaon status
Secon 12-5 describes all
operaon condions when the
inverter is set up at “Grid-e
with backup (I)” mode.
Operation
12
This display is operated by
four buons.
12.1 Interface
12.3 Button Definition
12.2 LCD Information Define
Icon
Icon
flashing indicates baery is not connected.
Indicates overload.
Indicates PV energy generated.
flashing indicates the baery voltage is too low.
27 28

Setting Display Procedure
Input voltage or frequency of AC input
Input voltage or frequency of AC input
Frequency, voltage, power or load percentage of AC output
Input voltage or power of PV input.
Baery voltage or capability percentage.
Date and me.
Today or total energy generated.
Mode of query energy generated.
Procedure
The display shows current contents that have been set. The
displayed contents can be changed in query menu via buon
operaon. Press ‘Enter’ buon to enter query menu. There are
seven query selecons:
12.4 Query Menu Operation
Procedure
Frequency, voltage, power or percentage of AC output
Procedure
Input voltage or power of PV input.
Procedure
Baery voltage or percentage.
Procedure
Date and me.
29 30

Procedure
Today or total energy generated.
Procedure
Mode of query energy generated.
Energy generaon display of selected day
LCD Display:
Energy generaon display of selected month
Procedure
LCD Display:
Inverter mode with grid connected
LCD Display:
LCD Display Descripon
Energy generaon display of selected year
Procedure
12.5 Query Menu Operation
Below is only contained LCD display for grid-e with backup
mode (I). If you need to know other operaon mode with LCD
display, please check with installer.
This inverter is connected to grid and working with DC/INV
operaon.
PV power is sufficient to charge
baery, provide power to loads,
and then feed in to the grid.
PV power is sufficient to charge
the baery first. However,
remaining PV power is not
sufficient to back up the load.
Therefore, remaining PV power
and the ulity are supplying
power to the connected load.
PV power is generated, but not
sufficient enough to charge
baery by itself. PV power and
the ulity are charging baery at
the same me. And the ulity is
also supplying power to the
connected load.
31 32

LCD Display Descripon
Inverter mode without grid connected
This inverter is working with DC/INV operaon and not
connecng to the grid.
PV power is sufficient to charge
baery and provide power to the
connected loads. At the same
me, the ulity is out of range.
icon is flahsing.
PV power is generated, but not
sufficient enough to power loads
by itself. PV power and baery
are providing power to the
connected loads at the same
me. At the same me, the
ulity is out of range. icon
is flahsing.
PV power is not detected or
available at this moment. Only
baery power is available to
provide power to connected
loads. At the same me, the
ulity is out of range. and
icons are flahsing.
Only PV power is available to
provide power to connected
loads. At the same me, the
ulity is out of range. No baery
is connected or baery is not
available to use at this moment.
and icons are
flahsing.
This inverter is disabled to
generate power to the loads via
AC output. PV power is sufficient
to charge baery first.
Remaining PV power will feed in
back to grid.
This inverter is disabled to
generate power to the loads via
AC output. PV power and ulity
are charging baery at the same
me because of insufficient PV
power.
This inverter is disabled to
generate power to the loads via
AC output. PV power is feeding
power back to the ulity. No
baery is connected or baery is
not available to use at this
moment. icon is flashing.
PV power is sufficient to provide
power to loads and feed power
back to ulity.No baery is
connected or baery is not
available to use at this moment.
icon is flashing.
PV power and ulity are
providing power to the
connected loads because of
insufficient PV power. No baery
is connected or baery is not
available to use at this moment.
icon is flashing.
33 34

Charging Management
13
LCD Display Descripon
Bypass mode
The inverter is working without DC/INV operaon and
connecng to the loads.
PV power is not detected or
available. Only ulity is charging
baery and providing power to
connected loads. icon is
flashing.
PV power and baery are not
detected or available to use at
this moment. Only ulity is
available to provide power to
connected loads. and
icons are flashing.
LCD Display
Baery type
Sealed lead acid
baery
AGM/Gel baery
Bulk Charging Voltage
56 53.6 V
56.4 54.0 V
Recommended floang
charging voltage
Descripon
Standby mode :
The inverter is working without DC/INV operaon and load
connected.
This inverter can connect to baery types of Sealed lead acid
baery, Vented baery and Gel baery. Below is recommended
bulk charging voltage and floang charging voltage table based
on different baery types.
The ulity is out of range. This
inverter is disabled on AC output
or even AC power output is
enabled, but an error occurs on
AC output. Only PV power is
sufficient to charge baery.
icon is flashing.
This inverter is disabled to
generate power to the loads via
AC output. PV power is not
detected or available at this
moment. Only ulity is available
to charge baery. icon is
flashing.
This inverter is disabled to
generate power to the loads via
AC output connector. PV power
and the ulity are not detected
or available at this moment.
Three icons are flashing.
Charging voltage Default
Value
25A
54.0 Vdc
56.0 Vdc
60.0 Vdc
Max. charging current
Baery overcharge protecon
Max. absorpon charging
voltage(default)
Floang charging voltage
(default)
Note
This can be adjusted via
soware from 5Amp to
25Amp.
It can be adjusted via
soware from 50Vac to
58Vdc.
It can be adjusted via
soware from 50Vac to
58Vdc.
This value is 2 Vdc higher
than max. charging voltage.
Charging process based on
default seng.
3 stages:
First – max. charging voltage
increases to 56V;
Second- charging voltage will
maintain at 56V unl charging
current is down to 5 Amp;
Third- go to floang charging
at 54V.
35 36