SAJ Suntrio Plus Series User manual
Suntrio Plus Series
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User Manual
SAJ Solar Inverter
Suntrio Plus Series
www.saj-electric.com
Suntrio Plus Series
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Preface
Thank you for choosing an SAJ solar inverter. We are pleased to provide
you with first-class products and exceptional service.
This manual includes information for installation, operation, maintenance,
trouble shooting and safety. Please follow the instructions of this manual
so that we can ensure delivery of our professional guidance and
wholehearted service.
Customer-orientation is forever our commitment. We hope this document
proves to be of great assistance in your journey for a cleaner, greener
world.
Please check for the latest version at www.saj-electric.com
Guangzhou Sanjing Electric Co., Ltd.
Zero-Carbon Innovator
Suntrio Plus Series
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Content
Preface.................................................................................................... - 1 -
Chapter 1 Safety Precautions .............................................................. - 4 -
1.1 Scope of Application ............................................................................... - 4 -
1.2 Safety Instructions................................................................................... - 4 -
1.3 Target Group............................................................................................ - 5 -
Chapter 2 Preparation.......................................................................... - 6 -
2.1 Safety Instructions................................................................................... - 6 -
2.2 Explanations of Symbols......................................................................... - 8 -
Chapter 3 Product Information.......................................................... - 10 -
3.1 Application Scope of Products .............................................................. - 10 -
3.2 Specification for Product Model ........................................................... - 11 -
3.3 Overview and Dimensions of products ................................................. - 11 -
3.4 Datasheet ............................................................................................... - 12 -
Chapter 4 Instructions for installation ............................................... - 14 -
4.1 Safety Instructions................................................................................. - 14 -
4.2 Pre-installation Check ........................................................................... - 14 -
4.3 The Determination of the Installation Method and Position................. - 16 -
4.4 Mounting Procedure.............................................................................. - 18 -
Chapter 5 Electrical Connection........................................................ - 20 -
5.1 Safety Instruction for Hot-line Job........................................................ - 20 -
5.2 Specifications for Electrical Interface................................................... - 21 -
5.3 AC Side Connection.............................................................................. - 21 -
5.4 DC Side Connection.............................................................................. - 23 -
5.5 Communication Connection.................................................................. - 26 -
Chapter 6 Debugging Instructions..................................................... - 27 -
Suntrio Plus Series
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6.1 Introduction of Human-computer Interface .......................................... - 27 -
6.2 First Run Setup...................................................................................... - 28 -
6.3 Monitoring Operation............................................................................ - 36 -
Chapter 7 Fault Code and Troubleshooting....................................... - 37 -
Chapter 8 Recycling and Disposal .................................................... - 40 -
Chapter 9 Guarantee Service............................................................. - 41 -
Chapter 10 Contact SAJ .................................................................... - 42 -
Suntrio Plus Series
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Chapter 1 Safety Precautions
1.1 Scope of Application
This User Manual describes instructions and detailed procedures for installing,
operating, maintaining, and troubleshooting of the following SAJ grid-tie inverters:
Suntrio Plus 4K; Suntrio Plus 5K; Suntrio Plus 6K;
Suntrio Plus 8K; Suntrio Plus 10K
Please keep this manual all time available in case of emergency.
1.2 Safety Instructions
DANGER
· DANGER indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING
· WARNING indicates a hazardous situation which, if not avoided, can result in death or
serious injury or moderate injury.
CAUTION
· CAUTION indicates a hazardous condition which, if not avoided, can result in minor or
moderate injury.
NOTICE
· NOTICE indicates a situation that can result in potential damage, if not avoided.
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1.3 Target Group
Only qualified electricians who have read and fully understood all safety
regulations contained in this manual can install, maintain and repair the inverter.
Operators must be aware of the high-voltage device.
Suntrio Plus Series
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Chapter 2 Preparation
2.1 Safety Instructions
DANGER
· Dangerous due to electrical shock and high voltage.
· Do not touch the operating component of the inverter, it might result in burning or death.
· To prevent risk of electric shock during installation and maintenance, please make sure that
all AC and DC terminals are plugged out.
· Do not touch the surface of the inverter while the housing is wet, it might lead to electrical
shock.
· Do not stay close to the inverter while there are severe weather conditions including storm,
lighting, etc.
· Before opening the housing, the SAJ inverter must be disconnected from the grid and PV
generator; you must wait at least five minutes to let the energy storage capacitors fully
discharged after disconnecting from power source.
WARNING
·The installation,service, recycling and disposal of the inverters must be performed by
qualified personnel only in compliance with national and local standards and regulations.
·Any unauthorized actions including modification of product functionality of any form may
cause lethal hazard to the operator, third parties, the units or their property. SAJ is not
responsible for the loss and these warranty claims.
·The SAJ inverter must only be operated with PV generator. Do not connect any other source
of energy to the SAJ inverter.
·Be sure that the PV generator and inverter are well grounded in order to protect properties
and persons.
CAUTION
·The PV inverter will become hot during operation. Please do not touch the heat sink or
peripheral surface during or shortly after operation.
·Risk of damage due to improper modifications.
·Risk of damage due to improper modifications.
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NOTICE
·Public utility only
·The PV inverter is designed to feed AC power directly to the public utility power grid; do
not connect AC output of the inverter to any private AC equipment.
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2.2 Explanations of Symbols
Symbol Description
Dangerous electrical voltage
This device is directly connected to public grid, thus all work to the inverter shall
only be carried out by qualified personnel.
DANGER to life due to high electrical voltage!
There might be residual currents in inverter because of large capacitors. Wait 5
MINUTES before you remove the front lid.
NOTICE, danger!
This is directly connected with electricity generators and public grid.
Danger of hot surface
The components inside the inverter will release a lot of heat during operation. Do
not touch metal plate housing during operating.
An error has occurred
Please go to Chapter 9 “Troubleshooting” to remedy the error.
This device SHALL NOT be disposed of in residential waste
Please go to Chapter 8 “Recycling and Disposal” for proper treatments.
Without Transformer
This inverter does not use transformer for the isolation function.
Security Certificate
The inverter complies with European product safety instructions.
CE Mark
Equipment with the CE mark fulfills the basic requirements of the Guideline
Governing Low-Voltage and Electro-magnetic Compatibility.
SAA Mark
The inverter complies with the requirement of Equipment and Product Safety Act in
Australia.
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CQC Mark
The inverter complies with the safety instructions from China's Quality Center.
No unauthorized perforations or modifications
Any unauthorized perforations or modifications are strictly forbidden, if any
defect or damage (device/person) is occurred, SAJ shall not take any
responsibility for it.
Suntrio Plus Series
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Chapter 3 Product Information
3.1 Application Scope of Products
Suntrio Plus series products are grid-tie single phase inverters without transformers,
and the inverters are important components of grid-tie solar power systems.
The Suntrio Plus inverters change the DC generated by solar panels into AC which
is in accordance with the requirements of public grid, and send the AC into the grid,
Table 3.1 shows the structural diagram of the typical application system of Suntrio
Plus inverters.
Name Description Remarks
A Solar panels
Monocrystalline or polycrystalline silicon, and thin-film PV
modules with II protection and need no ground connection
B Inverters Suntrio Plus 4K/5K/6K/8K/10K
C Metering
equipment
Standard metering tool for measuring the output electric power
of inverters
D Power grid
TT，TN-C，TN-S，TN-C-S
Table 3.1 Systematic Configuration Diagram
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3.2 Specification for Product Model
Suntrio Plus XK
①②
①Suntrio Plus represents for product name.
②XK represents rated power XkW of inverter, for example 5K means 5kW.
3.3 Overview and Dimensions of products
The dimensions of Sununo Plus series products is shown in Figure 3.2.
Figure 3.2 Dimensions of Sunttrio Plus 4K/5K/6K/8K/10K
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3.4 Datasheet
Sunttrio Plus 4K/5K/6K/8K/10K
Type Suntrio
Plus 4K
Suntrio
Plus 5K
Suntrio
Plus 6K
Suntrio
Plus 8K
Suntrio
Plus 10K
Input (DC)
Max. DC Power [W] 4200 5300 6300 8400 10500
Max. DC Voltage [V] 1000
MPPT Voltage Range [V] 160-900
Nominal DC Voltage [V] 600
Start Voltage[V] 180
Min. DC Voltage[V] 150
Max. DC Input Current PV1 /
PV2 [A] 11/11 22/11
Number of MPPT 2
Number of DC Connection Sets
per MPPT 1/1 2/1
DC Switch Integrated
Output (AC)
Rated AC Power [VA]
(@230V,50Hz) 4000 5000 6000 8000 10000
Max. AC Apparent Power [VA] 4000 5000 6000 8000 10000
Rated AC Current[A] 5.8 7.2 8.7 11.6 14.5
Max. AC Current [A] 6.4 8.1 9.7 12.9 15.9
Nominal AC voltage/ range 3/N/PE, 220/380V,230/400V,240/415V;180V-280V/312V-485V
Grid frequency/ range 50Hz,60Hz /44Hz-55Hz,54-65Hz
Power factor,adjustable 0.9 leading~0.9 lagging
Total Harmonic Distortion
(THDi) < 3% (at nominal power)
Feed-in Phase / Connection
Phase 3 /3
Efficiency
Max. Efficiency 97.8% 97.8% 97.8% 98.0 98.0
Euro Efficiency (at 600Vdc) 97.0% 97.2% 97.4% 97.5 97.6
MPPT Accuracy >99.5%
Protection
Internal Over-voltage
Protection Integrated
DC Insulation Monitoring Integrated
DCI Monitoring Integrated
GFCI Monitoring Integrated
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Grid Monitoring Integrated
AC Short Circuit Current
Protection Integrated
Thermal Protection Integrated
Anti-island protection
monitoring AFD
Interface
DC Connection MC4/H4
AC Connection Plug-in connector
LCD Display 3.5 inch Graphic LCD Display, Backlight, Inverter Parameter and
Data Display
Display Language Multi Language
Datalogger & Communication 1*RS485/1*RS232/WiFi(Optional)
General Data
Topology Transformerless
Consumption at Night [W] <0.6
Consumption at Standby [W] <10
Operating Temperature Range -25°C to +60°C(45°C to 60°C with derating)
Cooling Method Natural Convection
Ambient Humidity 0% to 100% Non-condensing
Altitude Up to 2000m (without power derating)
Noise [dBA] <29
Ingress Protection IP65 (Indoor & Outdoor Installation)
Mounting Rear Panel
Dimensions (H*W*D) [mm] 530*355*190 530*355*200
Net Weight [kg] 22 24.6
Standard Warranty [Year] 5 (standard)/10/15/20/25 (Optional)
Certificates
IEC62109-1/2, IEC61000-6-2/3, IEC61683, IEC60068-2,
IEC62116, IEC61717, PEA/MEA, NRS 097-2-1, UTE-C-15-712-1,
VDE0126-1-1/A1, VDE-AR-N 4105, AS4777.2, AS4777.3,
C-TICK, CQC NB/T 32004, G83-2,NBR 16149, NBR 16150,
TF 3.2.1
Suntrio Plus Series
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Chapter 4 Instructions for installation
4.1 Safety Instructions
DANGER
· Dangerous to life due to potential fire or electricity shock.
· Do not install the inverter near any inflammable or explosive items.
· This inverter will be directly connected with HIGH VOLTAGE power generation device;
the installation must be performed by qualified personnel only in compliance with national
and local standards and regulations.
NOTICE
· This equipment is suit for the pollution degree II.
· Inappropriate or the harmonized installation environment may jeopardize the life span of
the inverter.
· Installation directly exposed under intensive sunlight is not recommended.
· The installation site must have good ventilation condition.
4.2 Pre-installation Check
4.2.1 Check the Package
Although SAJ’s inverters have surpassed stringent testing and are checked before
they leave the factory, it is possible that the inverters may suffer damages during
transportation. Please check the package for any obvious signs of damage and if
such evidence is present, do not open the package and contact your dealer as soon as
possible.
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4.2.2 Check the Assembly Parts
After opening the package, please refer to Table 4.1 and 4.2 to check the
completeness of the assembly parts. Please contact your dealer if anything is
damaged or missing.
A B C D
E F G H
I J
Table 4.1 Assembly Parts List
Sequence Number Name Quantity Unit Remarks
A Inverter 1 Set
B Rear Panel 1 piece
C DC connector
2
Pair
Suntrio Plus 4K/5K/6K
3 Suntrio Plus 8K/10K
D RS485 Connector 1 piece
E M6×50 hex head screw 3 piece
F Expansion tube 3 piece
G M5×12 hex head screw and
gasket 2 piece
H AC connector 1 piece
I User Manual 1 Copy
J Warranty card 1 Copy
Table 4.2 Quantity of Assembly Parts and Instructions
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4.3 The Determination of the Installation Method and Position
4.3.1 Mounting Method
Please mount the inverter rightly as shown in Figure4.1 below.
Figure 4.1 Mounting Method
①The equipment employs natural convection cooling, and it can be installed
indoor or outdoor.
② Please install the equipment under the guidance of Figure4.1. Vertical
installation on floor level is recommended. Mount vertically or tilted backwards by
max. 15°. Never install the inverter tilted forward, sideways, horizontally or upside
down.
③Install the inverter at eye level for convenience when checking the LCD display
and possible maintenance activities.
④When mounting the inverter, please consider that disassembly for service work
may be required.
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4.3.2 Installation Position
Do not expose the inverter to direct solar irradiation as this could cause power derating due to
overheating.The ambient temperature should be between -25°C ～+60°C （-13° F ～140° F）
to ensure optimum operation.Choose locations with sufficient air exchange. Ensure additional
ventilation,when necessary.
To make sure the installation spot is suitably ventilated, if multiple SAJ grid-tie solar inverters
are installed in the same area, the following safety clearance in Figure4.2 shall be followed for
appropriate ventilation conditions.
30CM
50CM50CM30CM
30CM
50cm
80cm30cm
50cm
50cm
50cm
30cm80cm 80cm
80cm 80cm
30cm 30cm
50cm
50cm
50cm
50cm
50cm
50cm
Figure 4.2 Minimum Clearance
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4.4 Mounting Procedure
4.4.1 Mark the Positions of the Drill Holes of the Rear Panel
The position of the drill holes can be determined by using rear panel. See Figure 4.3
below:
Figure 4.3 Dimensions of Rear Panel
4.4.2 Drill Holes and Place the Expansion Tubes
According to the guides, drill 3 holes in the wall as shown in Figure 4.4 (in
conformity with position marked in the above mentioned figure), and then place
expansion tubes in the holes using a rubber mallet.
Figure 4.4 Drill Holes
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4.4.3 Mount the Screws and the Rear Panel
The panels should be mounted in the mounting position by screws as shown in
Figure 4.5.
Figure 4.5 Mount the Rear Panel
4.4.4 Mount the Inverter
Carefully mount the inverter to the rear panel. Make sure that the rear part of the
equipment is closely mounted to the rear panel.
Figure 4.6 Mount the Inverter
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