FuturaSun Optor Tri 5K User manual

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INSTALLATION MANUAL
HYBRID INVERTER
Optor Tri
5K/6K/8K/10K/12K
V 2023.06-MM

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CONTENTS
INFORMATION REGARDING THIS MANUAL ............................................................................................................................ 4
HOW TO USE THIS MANUAL .................................................................................................................................................... 4
1. SAFETY WARNINGS .............................................................................................................................................................. 4
2. DESCRIPTION OF THE PRODUCT .......................................................................................................................................... 4
2.1 PRODUCT OVERVIEW .................................................................................................................................................... 5
2.2 PRODUCT DIMENSIONS ................................................................................................................................................. 6
2.3 PRODUCT FEATURES ...................................................................................................................................................... 7
2.4 PRODUCT FEATURES ...................................................................................................................................................... 7
3. INSTALLATION ...................................................................................................................................................................... 8
3.1 LIST OF COMPONENTS................................................................................................................................................... 8
3.2 INSTALLATION INSTRUCTIONS ...................................................................................................................................... 9
3.2.1 INSTALLATION PRECAUTIONS ................................................................................................................................ 9
3.2.2 SELECTION OF THE INSTALLATION WALL .............................................................................................................. 9
3.2.3 INSTALLING THE INVERTER .................................................................................................................................. 10
3.3 CONNECTING THE BATTERIES ..................................................................................................................................... 11
3.3.1 SPECIFICATIONS OF THE FUNCTION TERMINALS ................................................................................................ 13
3.3.2 CONNECTION OF THE TEMPERATURE SENSOR FOR LEAD/ACID BATTERIES ...................................................... 14
3.4 CONNECTION OF THE GRID AND THE BACKUP LOAD ................................................................................................. 15
3.5 PHOTOVOLTAIC FIELD CONNECTION .......................................................................................................................... 17
3.5.1 PHOTOVOLTAIC MODULE SELECTION AND PHOTOVOLTAIC GENERATOR CONFIGURATION ........................... 18
3.5.2 CONNECTING THE MODULE STRING CABLES....................................................................................................... 18
3.6 CT CONNECTION .......................................................................................................................................................... 20
3.6.1 CONNECTION WITH EXTERNAL METER CHNT DTSU 666..................................................................................... 21
3.6.2 CONNECTION WITH EXTERNAL METER EASTRON SDM630 MODBUS V2 .......................................................... 22
3.7 EARTH CONNECTION ................................................................................................................................................... 22
3.8 WI-FI PLUG CONNECTION ............................................................................................................................................ 23
3.9 DIAGRAM OF TYPICAL ONGRID CONNECTION ........................................................................................................... 23
3.11 DIAGRAM OF SINGLE-PHASE CONNECTION WITH PARALLEL INVERTER ................................................................. 25
4 OPERATION ......................................................................................................................................................................... 27
4.1 SWITCHING ON USING THE ON/OFF BUTTON ............................................................................................................ 27
4.2 DISPLAY AND SIGNALLING LEDS.................................................................................................................................. 27
5 LCD DISPLAY ICONS ............................................................................................................................................................. 28
5.1 MAIN SCREEN .............................................................................................................................................................. 28
5.1.1 MENU STRUCTURE ............................................................................................................................................... 29
5.2 SOLAR / INVERTER / LOAD / GRID / BATTERY INFORMATION .................................................................................. 30

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5.3 ENERGY DATA PAGES AND CURVES ............................................................................................................................ 31
5.4 MAIN SETUP MENU PAGE ........................................................................................................................................... 32
5.5 BASIC SETTINGS ........................................................................................................................................................... 32
5.6 BATTERY SETTING ........................................................................................................................................................ 33
5.7 SYSTEM WORK MODE ................................................................................................................................................. 35
5.8 GRID SETTINGS ............................................................................................................................................................ 37
5.9 CEI 0-21 SELF-CHECK .................................................................................................................................................... 38
5.10 GEN PORT USE ........................................................................................................................................................... 40
5.11 ADVANCED FUNCTION .............................................................................................................................................. 41
5.12 DEVICE INFO .............................................................................................................................................................. 41
6 POSSIBLE OPERATING DIAGRAMS ...................................................................................................................................... 42
7 ERROR MESSAGES ............................................................................................................................................................... 44
7.1 LIST OF ERROR MESSAGES .......................................................................................................................................... 45
8. CONFIGURATION OF THE WI-FI PLUG AND MONITORING APP ........................................................................................ 48
9. TECHNICAL DATA ............................................................................................................................................................... 53
10. APPENDIX I ....................................................................................................................................................................... 54
11. APPENDIX II ...................................................................................................................................................................... 55

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INFORMATION REGARDING THIS MANUAL
The manual mainly provides product information, and installation, operation and maintenance guidelines. It does not,
however, include information regarding the photovoltaic sector.
HOW TO USE THIS MANUAL
Read the manual and other related documents carefully before any work on the inverter. All documentation must be stored
carefully and always be available in case of need. Contents may be periodically updated or revised as a result of product
development. The information contained in this manual is subject to change without notice. For a copy of the latest version
of this manual please contact [e-mail]
1. SAFETY WARNINGS
This section contains important safety and operation instructions.
Before using the inverter, read the instructions and warnings of the batteries to be installed, and the corresponding sections
in the instruction manual.
Do not open/disassemble/tamper with the inverter. If maintenance or repair is required, contact a licensed professional
installer.
Incorrect installation may result in electric shock and/or fire.
To avoid the risk of electric shock, disconnect all cables before attempting any maintenance or cleaning. Switching off the
inverter alone cannot eliminate the risk of electric shock.
ATTENTION: this product may only be installed by qualified personnel.
Never charge a battery that is below its operating temperature limit.
For optimal operation, use DC and AC power cables with appropriate cross-sections depending on the electrical currents
and powers.
Take great care when working with metal tools in the vicinity of the batteries. Dropping an instrument can cause a spark
or short circuit in batteries or other electrical components, or even explosion.
Strictly follow the procedures in this manual when disconnecting the terminals of the AC or DC connections. Refer to the
“Installation” section of this manual for the details.
Earthing instructions: this inverter must be strictly and correctly connected to a permanent earthing system. The local
requirements and regulations for installing the inverter must be observed.
Short circuits of the AC output and the DC input must always be avoided. Do not connect the inverter to the electric power
supply if the DC input is short-circuited.
2. DESCRIPTION OF THE PRODUCT
This inverter is a multifunctional product: it combines the functions of an inverter, a solar charge controller and a battery
charger to supply low-power electricity without interruption. Thanks to easily accessible buttons, its detailed LCD screen
allows the user to operate and configure the machine as battery charger, with solar/AC charge and flexible input voltages
according to different applications.

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2.1 PRODUCT OVERVIEW
1 : INVERTER INDICATORS 7: RS 485 PORT FOR METER 13 : GRID CONNECTION
2 : LCD DISPLAY 8: BATTERY INPUT CONNECTORS 14: LOAD CONNECTION
3 : FUNCTION BUTTONS 9: FUNCTION TERMINALS 15: GENERATOR CONNECTION
4 : ON/OFF BUTTON 10: MODBUS PORT 16: WI-FI INTERFACE
5 : DC DISCONNECTOR 11: BMS PORT
6 : PARALLEL PORT 12: PV INPUT - 2 MPPTs

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2.2 PRODUCT DIMENSIONS

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2.3 PRODUCT FEATURES
- Self-consumption and feed into the grid
- Automatic restart
- Programmable power supply priority for the batteries or the grid
- Different operating modes: OnGrid, OffGrid and EPS
- Battery charging current and voltage selectable from display depending on application
- Display-selectable battery charging priority (grid, solar, generator)
- Compatible with grid or generator power supply
- Overload, overtemperature and short-circuit protection
- Smart battery charger design for optimised battery performance
- Smart battery charger design for optimised battery performance
- Possibility of not feeding energy into the grid
- WI-FI monitoring and equipped with 2 MPPTs.
- Three-stage adjustable smart MPPT solar charging for optimised battery performance
- Programmable hourly charging and discharging of the batteries
- Possibility of feeding a load with excess energy (SMART LOAD)
2.4 PRODUCT FEATURES
The following picture shows the typical inverter operating diagram
It includes the following devices:
- Generator or public grid
- Photovoltaic field
For other possible solution diagrams in accordance with your needs, please consult your trusted technician.
This inverter can power any domestic appliance, including appliances with motor such as refrigerators or air conditioners,
as long as the maximum power output of the inverter is not exceeded.
AC Line
DC line
Grid
Generator
Batteries
Solar
Backup Load
Cloud Service
PV
Smart Load
Grid Inverter
TA
Domestic loads
connected to the grid
Smartphone

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3. INSTALLATION
3.1 LIST OF COMPONENTS
Check the components before the installation. Make sure that no components are damaged. The following components
must be in the inverter package:
1 x Hybrid Inverter
1 x Wall mounting bracket
4 x M8*80 stainless steel
bolts
1 x Communication cable for
parallel operation
1 x L-shaped hexagon key
1 x Temperature sensor
1 x User Manual
Manual
1 x WI-FI adapter
3 x Current Transformer DC+ / DC- connectors

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3.2 INSTALLATION INSTRUCTIONS
3.2.1 INSTALLATION PRECAUTIONS
The inverter is designed for outdoor use (IP65). The chosen installation site must comply with the following conditions:
· Avoid exposing the inverter to direct sunlight
· Do not install the inverter in areas where flammable materials are present
· Do not install the inverter in potentially explosive environments
· Avoid exposing the inverter to direct jets of cold air
· Do not install the inverter near a TV aerial or near aerial cables
· Do not install the inverter at an altitude above 2000 metres above sea level
· Do not install the inverter in rooms with humidity > 95% or directly exposed to atmospheric precipitation (rain and
snow)
Before connecting the cables, remove the metal cover by removing the screws as shown below:
3.2.2 SELECTION OF THE INSTALLATION WALL
The vertical installation wall must be suitable to support the weight of the inverter and any associated batteries, and must
be made of non-flammable material.
The installation height must be so that the LCD display of the inverter is at eye level and the user can read it correctly.
The temperature of the installation environment must be between -40 °C and 60 °C
For proper air circulation, necessary for heat dissipation and for maintenance, leave a free area as shown in the following
figure:

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3.2.3 INSTALLING THE INVERTER
The inverter is heavy: be very careful when unpacking and handling it.
To drill the fixing holes in the installation wall, choose the appropriate drill bit and drill 4 holes between 52 and 60 mm
deep
Use a hammer to insert the supplied expansion bolts into the holes.
Secure the installation bracket by tightening the bolts.
Lift the inverter, hook it onto the mounting bracket and insert and tighten the two M4 safety screws, as shown in the
following two pictures

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3.3 CONNECTING THE BATTERIES
To connect the batteries, use cables with dimensions as shown in the table below:
Optor model Cable size Cable cross-
section (mm
2
)
Torque value (max)
5 kW 2 AWG 35 24.5 Nm
6 / 8 kW 1 AWG 50 24.5 Nm
10 / 12 kW 1/0 AWG 50 24.5 Nm

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All wiring must be carried out by qualified professionals.
The battery connections must be made with cables of the correct cross-sections, as shown in the table
above, to avoid possible damage and sources of danger.
Two cables with appropriate battery connectors are required for connecting the battery.
Ensure that the polarities of the batteries match those of the inverter ( + + , - - )
To connect the battery cables to the inverter, loosen the screws (size M10), insert the eyelet connectors and then tighten
the screws to a torque of 24.5 Nm
The installation must be carried out with great care. Before making the DC connections and closing the DC
switch, if any, make sure that the positive (+) of the inverter is connected to the positive (+) of the battery and
the negative (-) of the inverter is connected to the negative (-) of the battery. A connection with reversed
polarity will damage the inverter.
If lithium batteries are used, the BMS communication cable must also be connected between inverter and batteries, to the
BMS CAN or BMS 485 port, depending on the type of communication required by the batteries. Only lithium batteries that
are expressly compatible with the inverter can be used. In case of doubt, please contact the Technical Support Service of
FuturaSun
POSITIVE BATTERY INPUT +
NEGATIVE BATTERY INPUT -
EXAMPLE OF BMS COMMUNICATION
CABLE CONNECTION
(UZ ENERGY BATTERIES)

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3.3.1 SPECIFICATIONS OF THE FUNCTION TERMINALS
INVERTER
MODBUS
PARALLEL A
PARALLEL B
RS 485 METER
PARALLEL A: Inverter parallel
communication port 1 (CAN interface)
PARALLEL B: Inverter parallel
communication port 2 (CAN interface)
METER 485: RS485 port for communication
with external meter
MODBUS: MODBUS RTU communication
port
BMS
: BMS port for communication with the
batteries (CAN or RS485)
12345678
CN1
CONNECTOR CN1:
1-2 (TEMP): terminals for temperature probe connection
(only in case of lead-acid batteries)
3-4 (CT 1): CT connection terminals PHASE 1 (R)
5-6 (CT 2): CT connection terminals PHASE 2 (S)
7-8 ( CT3): CT connection terminals PHASE 3 (T)
CONNECTOR CN2:
G-S (1-2) :
Dry contact for generator start signal. To use the contact, activate the "GEN SIGNAL" option in the
BATTERY SETTINGS menu. The contact will be closed when the conditions set for the generator start request
are fulfilled.
G-V (3-4) : Dry contact. When the inverter is in OffGrid mode and
the "Signal Island Mode" option in the "ADVANCED FUNCTION
menu is active, the contact is also active (closed)
GRID_RY (5-6) : Confidential
RSD (7-8) : A 12Vdc output is provided from these two terminals when
the inverter is switched on and the batteries are connected.
1 2 3 4 5 6 7 8
CN2
BMS
RELAY
G
S
COIL
GS:
GENERATOR START SIGNAL

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3.3.2 CONNECTION OF THE TEMPERATURE SENSOR FOR LEAD/ACID BATTERIES
If the inverter is connected to, and operated with, lithium batteries with corresponding BMS communication, installing and
connecting the temperature sensor is not necessary.
1
2
TEMPERATURE SENSOR

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3.4 CONNECTION OF THE GRID AND THE BACKUP LOAD
A circuit breaker with thermal-magnetic and differential protection between the inverter and the grid is required when
connecting the inverter to the grid.
Use the table below to choose the appropriate switch for the inverter being connected.
Optor model Thermal-magnetic circuit
breaker
Differential
5K / 6K C10 A 300 mA class A-AC
8K / 10K C16 A 300 mA class A-AC
12K C20 A 300 mA class A-AC
When connecting the backup output, install a switch also between the LOAD output and the load supply line, sized for the
maximum load current.
The switches ensure that the inverter is protected against overloads and can be disconnected during maintenance.
Be very careful not to reverse the connection of the lines in the "GEN" "LOAD" "GRID" AC terminals
All wiring must be carried out by qualified personnel only. For the safety of the system, it is mandatory to use
cables of the appropriate type and cross-section, as shown below, to avoid risks and to ensure efficient
operation.
Optor model Cable cross-section
mm
2
for GRID
Cable cross-section
mm
2
for LOAD
Terminal clamping torque
5K / 6K / 8K /
10K / 12K
6 – 10 4 – 6 1.2 Nm
Before connecting the cables to the AC switches, make sure that there is no voltage in the conductors. Then connect the
cables to the correct terminal clamps (L1-L2-L3-N-PE) and tighten them to the indicated torque. Any loads that may be
damaged if the supply voltage is suddenly cut off must be switched off before opening the relevant AC switches.
It is strongly recommended to also install SPDs (surge protection device) in all AC lines coming into or going out of the
inverter, so that the inverter is protected against voltage surges. Failures caused by voltage surges external to the inverter
are not covered by the warranty.

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GEN (GENERATOR)
LOAD
GRID
GEN (GENERATOR)
LOAD
GRID
N

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3.5 PHOTOVOLTAIC FIELD CONNECTION
The inverter has 2 MPPTs and a physical input for the strings for each MPPT.
Although the inverter is equipped with an on-board DC disconnector, it is strongly recommended that a DC switchboard is
also installed, with, for each string:
- a pair of fuses of appropriate rating depending on the photovoltaic modules
- a Class II overvoltage arrester (SPD)
- a DC disconnector of suitable voltage
-
For the connection of the module strings, use a solar cable that complies with the regulations in force in the country of
installation and with a cross-section as shown in the table below, depending on the length of the cable
Optor model Solar cable cross-section mm2
5K / 6K / 8K / 10K / 12K 4-6
The inverter is not equipped with an isolation transformer and has a function for controlling the insulation
resistance of the photovoltaic field. Therefore, it is forbidden to connect photovoltaic modules with possible
current leakage to the earth. It is, therefore, not possible to use modules that require earthing of one or both
poles, NEGATIVE (-) and/or POSITIVE (+).
Inverter failures caused by voltage surges coming from the photovoltaic field are not covered by the
warranty.
PV1 = MPPT1 PV2 = MPPT2

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3.5.1 PHOTOVOLTAIC MODULE SELECTION AND PHOTOVOLTAIC GENERATOR CONFIGURATION
Photovoltaic modules that do not require one of the poles to be earthed must be used with this inverter. The modules must
be class A certified according to IEC 61730
The string configuration - both the number of modules per string and the number of strings - must comply with the voltage
and current operating ranges of the inverter.
Both the minimum and maximum string voltage and the minimum and maximum string current must be calculated
according to the minimum and maximum temperature range of the installation site. The calculated values must always be
within the operating ranges of the inverter.
Special configurations can be agreed with FuturaSun technicians
Inverter failures caused by incorrect configuration of the photovoltaic field are not covered by the warranty.
PV input parameters
5K
6K
8K
10K
12K
Maximum DC power (W)
6500W 7800W
10400W
13000W
15600W
Input voltage (V)
550V (160V~800V)
MPPT
Range (V)
200~650V
Starting voltage (V)
160V
Maximum input current (A)
13A+13A
MPPT number
2
Number of strings per MPPT
1+1
1+1
1+1
2+1
2+1
3.5.2 CONNECTING THE MODULE STRING CABLES
Before connecting the string cables to the inverter, ensure the following:
- No AC voltage is connected to any of the inverter terminals (GRID, LOAD, GEN)
- Set the DC disconnector to OFF and check that there is no voltage in the DC cables
- Crimp the supplied DC connectors to the string cables as shown below.
Before connecting the strings to the inverter, check that there are no earth faults in the PV field and that the
polarities of the strings match the polarities of the inverter inputs.
DC+ AND DC- CONNECTORS SUPPLIED WITH THE INVERTER
DC+ male
connector
DC
-
female connector

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Open the plastic connector shell by unscrewing the lower cap
Strip the string cables by approximately 7mm and run the cables inside the unscrewed caps.
Insert the metal conductors of the solar cables into the appropriate holes in the metal parts of the connectors and crimp
with a suitable crimping tool, checking that the cable is as tight as it should.
Insert the crimped pins into their plastic counterparts and screw them on to complete the connector assembly
Connect the connectors to the inverter respecting the polarities
Incorrect or imperfectly executed crimping can cause conduction resistances and overheat the connectors,
causing damage to the connectors and the inverter.
Always pay close attention to any voltage present in the string cables before working on them
7 mm
7 mm
CRIMPING
TOOL

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3.6 CT CONNECTION
Only the LINE conductor (L) - and not the NEUTRAL (N) - must pass through the CT
BLACK WIRE
WHITE WIRE
INVERTER
!!! THE ARROW OF THE CT
MUST POINT TOWARDS THE
INVERTER
NO!!!
BACKUP
LOAD OK
BACKUP
LOAD
NO!!!
BACKUP
LOAD OK
BACKUP
LOAD
GRID