SAJ Suntrio Plus 17K, Suntrio Plus 33K, Suntrio Plus 40K, Suntrio Plus 60K, Suntrio Plus 50K User Manual

User Manual

SAJ Solar Inverter

Suntrio Plus Series

www.saj-electric.com

Suntrio Plus Series

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Preface

Thank you for choosing a 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 and greener
world.

Please check for the latest version at www.saj-electric.com

Guangzhou Sanjing Electric Co., Ltd.

Building e-Energy management solution provider

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Content

Preface..................................................................................................... - 1 -

Content.................................................................................................... - 2 -

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 of products...............................................................................- 11 -

3.4 Datasheet.................................................................................................. - 13 -

Chapter 4 Instructions for installation................................................ - 17 -

4.1 Safety Instructions....................................................................................- 17 -

4.2 Pre-installation Check..............................................................................- 17 -

4.3 The Determination of the Installation Method and Position.................. - 18 -

4.4 Mounting Procedure.................................................................................- 20 -

Chapter 5 Electrical Connection.........................................................- 24 -

5.1 Safety Instruction for Hot-line Job..........................................................- 24 -

5.2 Specifications for Electrical Interface.....................................................- 25 -

5.3 AC Side Connection.................................................................................- 25 -

5.4 DC Side Connection................................................................................ - 27 -

5.5 Communication Connection.................................................................... - 30 -

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Chapter 6 Debugging Instructions......................................................- 32 -

6.1 Introduction of Human-computer Interface............................................ - 32 -

6.2 First Run Setup.........................................................................................- 33 -

6.3 Monitoring Operation.............................................................................. - 42 -

Chapter 7 Fault Code and Troubleshooting........................................- 43 -

Chapter 8 Recycling and Disposal..................................................... - 46 -

Chapter 9 Guarantee Service..............................................................- 47 -

Chapter 10 Contact SAJ..................................................................... - 48 -

SAJ Warranty Policy.......................................................................... - 49 -

Warranty Card........................................................................................- 53 -

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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-tied

inverters:

Suntrio Plus 12K; Suntrio Plus 15K; Suntrio Plus 17K; Suntrio Plus 20K;

Suntrio Plus 25K; Suntrio Plus 33K; Suntrio Plus 40K; Suntrio Plus 50K

；

Suntrio Plus 60K

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.

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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, or 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, or 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 for at least five minutes to let the energy storage capacitors fully
be 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 safety of
people’s life and property.

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.

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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
for 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 as 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.

CQC Mark

The inverter complies with the safety instructions from China's Quality Center.

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No unauthorized operations or modifications

Any unauthorized operations or modifications are strictly forbidden, if any
defect or damage (device/person) occurs, SAJ shall not take any responsibility
for it.

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Chapter 3 Product Information

3.1 Application Scope of Products

Suntrio Plus series products are grid-tied three phase inverters without

transformers, and the inverters are important components of grid-tied 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 12K/15K/17K//20K/25K/33K/40K/50K/60K

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

1

②

①

Suntrio Plus represents for product name.

②

XK represents rated power XkW of inverter, for example 12K means 12kW.

3.3 Overview of products

Figure 3.2 Overview of Suntrio Plus 12K/15K/17K/20K

Figure 3.3 Overview of Suntrio Plus 25K/33K

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Figure 3.4 Overview of Suntrio Plus 40K/50K/60K

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3.4 Datasheet

Sunttrio Plus 12K/15K/17K/20K

Type

Suntrio Plus

12K

Suntrio Plus

15K

Suntrio Plus

17K

Suntrio Plus

20K

Input (DC)

Max. DC Power [W]

14520 18150 20570 24200

Max. DC Voltage [V]

1000

MPPT Voltage Range [V]

180-900

Nominal DC Voltage [V]

600

Start Voltage[V]

200

Min. DC Voltage[V]

180

Max. DC Input Current PV1 / PV2 [A]

22/11 22/22 22/22 22/22

Number of MPPT 2

Number of DC Connection Sets per
MPPT

2/1 2/2 2/2 2/2

DC Switch Integrated

Output (AC)

Rated AC Power [W]
(@230V,50Hz)

12000 15000 17000 20000

Max. AC Power [VA]

13200 16500 18700 22000

Rated AC Current[A]

17.4 21.7 24.6 29.0

Max. AC Current [A]

20.0 25.0 28.3 33.0

Nominal AC voltage/ range 3/N/PE, 220/380V,230/400V,240/415V;180V-280V/312V-485V

Grid frequency/ range 50Hz,60Hz /44Hz-55Hz,54Hz-65Hz

Power factor,adjustable 0.8 leading~0.8lagging

Total Harmonic Distortion (THDi)

< 3% (at nominal power)

Feed-in Grid

3L+N+PE

Efficiency

Max. Efficiency

98.3% 98.4% 98.5% 98.5%

Euro Efficiency (at 600Vdc)

98.0% 98.1% 98.2% 98.2%

MPPT Accuracy >99.5%

Protection

Internal Over-voltage Protection

Integrated

DC Insulation Monitoring Integrated

DCI Monitoring Integrated

GFCI Monitoring Integrated

Grid Monitoring Integrated

AC Short Circuit Current Protection

Integrated

Thermal Protection Integrated

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AC Surge Protection

Ⅲ

（Integrated），Ⅱ（Optional）

Low Voltage Ride Through Integrated

String Current Monitoring Integrated

Anti-PID Module Optional

DC Fuse Optional

DC Surge Protection

Ⅱ

（Optional）

Anti-island protection monitoring

AFD

Interface

DC Connection MC4/H4

AC Connection Terminal Block

LCD Display

3.5 inch Graphic LCD Display

Display Language English

Communication Port 2*RS485+1*RS232

Communication Mode Wi-Fi/GPRS/Ethernet (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

Intelligent Fan

Ambient Humidity 0 to 100% Non-condensing

Altitude 3000m (>2000m power derating)

Noise [dBA]

<35

Ingress Protection IP65 (Indoor & Outdoor Installation)

Mounting Rear Panel

Dimensions (H*W*D) [mm]

640*450*232

NetWeight[kg]

29 33

Standard Warranty [Year] 5 (standard)/10/15/20/25 (Optional)

Certificates

IEC62109-1/2, IEC61000-6-2/3, IEC61683, IEC60068-2, IEC62116,
IEC61727, 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

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Sunttrio Plus 25K/33K/40K/50K/60K

Type

Suntrio Plus

25K

Suntrio Plus

33K

Suntrio Plus

40K

Suntrio Plus

50K

Suntrio Plus

60K

Input (DC)

Max. DC Power [W]

30300 36300 48400 60500 72000

Max. DC Voltage [V]

1000

MPPT Voltage Range [V]

180-900 280-900

Nominal DC Voltage [V]

600

Start Voltage[V]

200 300

Min. DC Voltage[V]

180 250

Max. DC Input Current PV1 / PV2 [A]

22/22/22 40/30/30 40/40/40

Number of MPPT 3

Number of DC Connection Sets per
MPPT

2/2/2 4/3/3 4/4/4

DC Switch Integrated

Output (AC)

Rated AC Power [W]
(@230V,50Hz)

25000 30000 40000 50000 60000

Max. AC Power [VA]

27500 33000 44000 55000 60000

Rated AC Current[A]

36.2 43.5 58.0 72.5 87.0

Max. AC Current [A]

42.0 50.0 65.0 80.0 90.0

Nominal AC voltage/ range 3/N/PE, 220/380V,230/400V,240/415V;180V-280V/312V-485V

Grid frequency/ range 50Hz,60Hz /44Hz-55Hz,54Hz-65Hz

Power factor,adjustable 0.8 leading~0.8lagging

Total Harmonic Distortion (THDi)

< 3% (at nominal power)

Feed-in Grid

3L+N+PE

Efficiency

Max. Efficiency

98.6% 98.8% 98.8% 98.8% 98.9%

Euro Efficiency (at 600Vdc)

98.4% 98.5% 98.5% 98.5% 98.6%

MPPT Accuracy >99.5%

Protection

Internal Over-voltage Protection

Integrated

DC Insulation Monitoring Integrated

DCI Monitoring Integrated

GFCI Monitoring Integrated

Grid Monitoring Integrated

AC Short Circuit Current Protection

Integrated

Thermal Protection Integrated

AC Surge Protection

Ⅱ

（Integrated）

Low Voltage Ride Through Integrated

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String Current Monitoring Integrated

Anti-PID Module Optional

DC Fuse Optional

DC Surge Protection

Ⅱ

（Integrated）

Anti-island protection monitoring

AFD

Interface

DC Connection MC4/H4

AC Connection Terminal Block

LCD Display

3.5 inch Graphic LCD Display

Display Language English

Communication Port 2*RS485+1*RS232

Communication Mode Wi-Fi/GPRS/Ethernet (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

Intelligent Fan

Ambient Humidity 0 to 100% Non-condensing

Altitude 3000m (>2000m power derating)

Noise [dBA]

<35

Ingress Protection IP65 (Indoor & Outdoor Installation)

Mounting Rear Panel

Dimensions (H*W*D) [mm]

700*530*260 800*550*280

NetWeight[kg]

48 68

Standard Warranty [Year] 5 (standard)/10/15/20/25 (Optional)

Certificates

IEC62109-1/2, IEC61000-6-2/3, IEC61683, IEC60068-2, IEC62116,
IEC61727, 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

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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 suitable for the pollution degree II.

· Inappropriate or unharmonized 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 C hec

k

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.

4.2.2 Check the Assembly Parts

Please refer to the Packing List inside the package container.

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4.3 The Determination of the Installation Method and Position

4.3.1 Mounting Method

Please mount the inverter correctly as shown in Figure4.1 below.

Figure 4.1 Mounting Method

①

The 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.

③

Install the inverter at eye level for convenience when checking the LCD display

and possible maintenance activities.

④

When mounting the inverter, please consider that disassembly for service work

may be required.

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,if necessary.

To make sure the installation spot is suitably ventilated, if multiple SAJ grid-tied
solar inverters are installed in the same area, the following safety clearance in
Figure4.2 shall be followed for appropriate ventilation conditions.

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30CM

50CM50CM30CM

30CM

50cm

80cm

50cm

50cm

50cm

80cm 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.

508.5

348

120

400

457

Figure 4.3 Dimensions of Rear Panel Suntrio Plus 12K/15K/17K/20K

538

200.4

279.6

498

Figure 4.4 Dimensions of Rear Panel Suntrio Plus 25K/33K

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558

324

120

388

∅

8

261

Figure 4.5 Dimensions of Rear Panel Suntrio Plus 40K/50K/60K

4.4.2 Drill Holes and Place the Expansion Tubes

According to the guides, drill 3 holes in the wall as shown in Figure 4.6、4.7、4.8

(in conformity with position marked in the above mentioned figure), and then

place expansion tubes in the holes using a rubber mallet.

Figure 4.6 Drill Holes Suntrio Plus 12K/15K/17K/20K

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Figure 4.7 Drill Holes Suntrio Plus 25K/33K

Figure 4.8 Drill Holes Suntrio Plus 40K/50K/60K

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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 4.9.

Figure 4.9 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 4.10 Mount the Inverter

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Chapter 5 Electrical Connection

5.1 Safety I nstruction for Hot-line Job

Electrical connection must only be operated on by professional technicians. Please

keep in mind that the inverter is a bi-power supply equipment. Before connection,

necessary protective equipment must be employed by technicians including

insulating gloves, insulating shoes and safety helmet.

DANGER

· Dangerous to life due to potential fire or electricity shock.

· When power-on, the equipment should be in conformity with national rules and
regulations.

· The direct connection between the converter and high voltage power systems must be
operated by qualified technicians in accordance with local and national power grid
standards and regulations.

WARNING

·W

hen the photovoltaic array is exposed to light, it supplies a d.c voltage to the inverter.

NOTICE

·Electrical connection should be in conformity with proper stipulations, such as

stipulations for cross-sectional area of conductors, fuse and ground protection.

·The overvoltage category on DC input port is II,and that on AC output port is III.

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5.2 Specifications for Electrical Interface

Figure 5.1 Electrical Interface

Table 5.1 Specifications for Interface

Code Name

A DC Input

B RS232/Wi-Fi Port

C Decompression valves

D AC output

E RS485 Port

F Ground Connecting port

GDCSwitch

5.3 AC Side Connection

Type

Recommended copper cable
cross section area（mm²）

external diameter（mm）

Suntrio Plus 12K

4×6+1×4 15.6

Suntrio Plus 15K/17K/20K

4×10+1×6 18.1

Suntrio Plus 25K/33K

4×16+1×10 20.8

Suntrio Plus 40K/50K/60K

4×35+1×16 27.1

Table 5.2 Recommended Specifications of AC Cables

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5.3.1 Open the lid of installion area.

Figure 5.2 open cover

There are some optional functons can be added into the inverter,such as AC surge

protection(Class 2),DC suege protection,Anti-PID,and DC fuses. Them are

installed in the inverters before they leave the factory.

5.3.2 Feed AC cable t hrough the AC cable hole, and connect the cable to
terminals as the marks L1,L2,L3,N,PE shows.

Figure 5.3 Connect the Cables

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5.3.3 Secure all parts of the AC waterproof connector tightly.

Figure 5.4 Screw the Connector

5.3.4 Cover the lid and tighten the screws

Figure 5.5 Cover the lid

5.4 DC Side Connection

Cross-sectional Area of Cables（mm²）

Outside Diameter of the

Cables（mm）

Scope Recommended Value

4.0-6.0 4.0 4.2~5.3

Table5.3 Recommended Specifications of DC Cables

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DC connector is made up of the positive connector and the cathode connector

1. Insulated Enclosure 2. Lock Screw 3. Positive Connector

Figure 5.6 Positive Connector

1. Insulated Enclosure 2. Lock Screw 3. Cathode Connector

Figure 5.7 Cathode Connector

NOTICE

·Please place the connector separately after unpacking in order to avoid confusion for connection
of cables.

·Please connect the positive connector to the positive side of the solar panels, and connect the
cathode connector to the cathode side of the solar side. Be sure to connect them in right position.

Connecting Procedures:

(1)Tighten the lock screws on positive and cathode connector.

(2)Use specified strip tool to strip the insulated enclosure of the positive and

cathode cables to the appropriate length.

1.Positive Cable 2. Cathode Cable

Figure 5.8 Connecting Cables

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（3）

Feed the positive and cathode cables into corresponding lock screws.

（4）

Put the metal positive and cathode terminals into positive cable and cathode

cable whose insulated enclosure has been stripped, and crimp them tightly with a

wire crimper. Make sure that the withdrawal force of the pressed cable is bigger

than 400N.

（5）

Plug the pressed positive and cathode cables into relevant insulated enclosure,

a “click” should be heard or felt when the contact cable assembly is seated

correctly.

（6）

Fasten the lock screws on positive and negative connectors into respondent

insulated enclosure and make them tight.

（7）

Connect the positive and cathode connectors into positive and negative DC

input terminals of the inverter, a “click” should be heard or felt when the contact

cable assembly is seated correctly.

1. Connection Port

Figure 5.9 Connect the Inverter

NOTICE

·Before inserting the connector into the DC input terminal of the inverter, please make
sure that the DC switch of the inverter is OFF.

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5.5 Communication Connection

Suntrio Plus 12K/15K/17K/20K/25K/33K/40K/50K/60K is equipped with a
RS232 and RS485 interface.

Figure 5.10 Pins of Nine Serial Port Cable

Table 5.5 Instruction of Nine Serial Port Pins

Pin No. Name

1DCD

（

Data Carrier Detect

）

2RxD

（

Received Data

）

3TxD

（

Transmitted Ready

）

4DTR

（

Data Terminal

）

5GND

（

Signal Ground

）

6DSR

（

Data Send Ready

）

7 RTS (Request To Send)

8CTS(ClearToSend)

9 RI(Ring Indicator)

1）RS232 can externally connect with Wi-Fi module.For more details, please refer

to the operating manual of Wi-Fi module.

2）RS232 can externally connect with Wi-Fi module.For more details, please refer

to the operating manual of Ethernet module.

3）RS232 can externally connect with Wi-Fi module.For more details, please refer

to the operating manual of GPRS module.

When using RS485 for monitoring, multi- point monitoring can be achieved by

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connecting the inverter with RS485 cable. Each connection port should be attached

to the connector as shown in Figure 5.11 and Table 5.4. Make sure the connection

is tight and secure.

Figure 5.11 3 Ports connector

Table 5.4 RS485 Assembly Sequence of RS485

Number of connector Color of cable

1B-

2A+

3 Metal-shielded wire

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Chapter 6 Debugging Instructions

6.1 Introduction of Human-computer Interface

Figure 6.1 Human-computer Interface

Object Description

A

Communication light: blue light flashing = receiving data
yellow light flashes = sending data

B

Status indicator lamp: Red LED light = Fault; Green LED light = operation;
when red and green light are all off, the inverter is in initializing state or
countdown for grid-tie.

C

Power indicator light: yellow light: the power system of inverter is operating
normally

D◀

Moves the cursor or the focus point to the left

E ▶

Moves the cursor or the focus point to the right

F(ENT) Starts the menu / button to confirm selection

G

▲

Moves the cursor up or increases the setting value

H

▼

Moves the cursor down or reduces the setting value

The inverter provides five buttons for inquiry of operational information and

parameters, these five buttons can be used repeatedly.

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6.2 First Run Setup

6.2.1 Set the Country

When the solar inverter begins to run for the first time, please configure the time of

usage, and the inverter LCD will display as below:

Figure 6.2 Set the Time

Users can press Up, Down, Left, Right and ENT buttons to set local time and

confirm the selection.Then the inverter will display the interface for country

selection as shown in Figure 6.3:

Figure 6.3 Set The Country

Please press the "ENT" button, LCD will show the countries for option. Users can

press "

"or" " to select the correct country and press "ENT" button to confirm

the selection.

Note: The configuration of the country of usage must be set before inverter starts

to run for its first time, otherwise the inverter will not be on-gird.If users can not

locate the corresponding country, please abort the setting and contact the after

sales for confirmation.

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6.2.2 State

If the country has been set the LCD shows the machine type when the inverter is

started up, then it automatically displays the inverter operation status: Initialization,

Normal,Wait, Fault or Update.

Data name Explanation

Initialization Initialization of the system

Normal The inverter in normal (function) operation

Wait The inverter in stand-by state

Fault A fault occurs during operation

Update The state of updating firmware

Turn on the AC switch, the LCD begins to count backwards, after this, the inverter

initiates connection to the grid.

6.2.3 LCD Menu

Figure 6.4 LCD Menu

Suntrio Plus Series

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6.2.4 Settings of General Parameters of the Inverter

LCD Display Operation Steps

1. Settings of figures

Graph Set

In the main LCD interface, press
“ENT” button to enter into the
selection of “Graph”, press or
to select. The LCD displays
daily, monthly, yearly and gross
generating capacity.

2. Settings of System Parameter

Communicate Set

1. In the main LCD interface,
press “ENT” button, then press
▶to enter into “Setting”.

2. Press ENT to enter into”
Communication Settings”. Press
▼and▲to set the
communication address of Wi-Fi
and RS485. The Fault address is

1.

Suntrio Plus Series

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Language & Time

1. In the main LCD interface,
press “ENT” button, then press
▶to enter into “Setting”.

2. Press▼andthenpressENTto
enter into “Language & Time”.
Press▲and ▼to set the
language, date and time.

Grid Compliance

1. In the main LCD interface,
press “ENT” button, then press
to enter into “Setting”.

2. Press▼andthenpressENTto
enter password and enter into
country setting.
Attention: Please contact SAJ if
you need password.

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Grid Compliance

3. Press▲and▼to select
country,
Then click OK to save the
changes.

Clear Errors

1. In the main LCD interface,
press “ENT” button, then press
▶ to enter into “Setting”.

2. Press▼andthenpressENTto
enter into “Clear Fault Records”,
click OK or return back.

1. In the main LCD interface,
press “ENT” button, then press
▶ to enter into “Setting”.

Power

1230W

E-Today

11.33 kWh

T-Today

1.7 h

T-Total

4.6 h

15-07-09 15：47

Graph

Setting Run-Info

About

0

3.7

7.4

11.1

14.8

18.5

22.2

25.9

29.6

kW

33.3

3 5 7 9 11 13 15 17 19 21h

E-Total

14.35 kWh

E-Today 11.33 kWhNormal

Communicate Set
Language & Time
Grid Compliance

Clear Energy
LCD Setting
Factory Reset
Change Password
PV Mode Setting
Exit

Clear Error

Power

1230W

E-Today

11.33 kWh

T-Today

1.7 h

T-Total

4.6 h

15-07-09 15：47

Graph

Setting Run-Info

About

0

3.7

7.4

11.1

14.8

18.5

22.2

25.9

29.6

kW

33.3

3 5 7 9 11 13 15 17 19 21h

E-Total

14.35 kWh

E-Today 11.33 kWhNormal

Communicate Set
Language & Time
Grid Compliance
Clear Error

LCD Setting
Factory Reset
Change Password
PV Mode Setting
Exit

Clear Energy

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Clear Energy

2. Press▼andthenpressENTto
enter into “Clear Energy”, click
OK or return back.

LCD Setting

1. In the main LCD interface,
press “ENT” button, then press
▶ to enter into “Setting”.

2. Press▼andthenpressENTto
enter into “Display Settings”,
andthenpress▲and▼to
change the sleep time of LCD,
click OK or return back.

Factory Reset

1. In the main LCD interface,
press “ENT” button, then press
▶ to enter into “Setting”.

Power

1230W

E-Today

11.33 kWh

T-Today

1.7 h

T-Total

4.6 h

15-07-09 15：47

Graph

Setting Run-Info

About

0

3.7

7.4

11.1

14.8

18.5

22.2

25.9

29.6

kW

33.3

3 5 7 9 11 13 15 17 19 21h

E-Total

14.35 kWh

E-Today 11.33 kWhNormal

Communicate Set
Language & Time
Grid Compliance
Clear Error
Clear Energy

Factory Reset
Change Password
PV Mode Setting
Exit

LCD Setting

Power

1230W

E-Today

11.33 kWh

T-Today

1.7 h

T-Total

4.6 h

15-07-09 15：47

Graph

Setting Run-Info

About

0

3.7

7.4

11.1

14.8

18.5

22.2

25.9

29.6

kW

33.3

3 5 7 9 11 13 15 17 19 21h

E-Total

14.35 kWh

E-Today 11.33 kWhNormal

Communicate Set
Language & Time
Grid Compliance
Clear Error
Clear Energy
LCD Setting

Change Password
PV Mode Setting
Exit

Factory Reset

Suntrio Plus Series

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Factory Reset

2. Press▼andthenpressENTto
enter password, and then enter
into Factory Settings.
Attention: Please contact SAJ if
you need password.

3. Click OK to save the changes.

Change Password

1. In the main LCD interface,
press “ENT” button, then press
▶ to enter into “Setting”.

2. Press▼and then press ENT to
enter password, and then enter
into Reset Password.
Attention: Please contact SAJ if
you need password.

Power
1230W

E-Today

11.33 kWh

T-Today

1.7 h

T-Total

4.6 h

15-07-09 15：47

Graph

Setting Run-Info

About

0

3.7

7.4

11.1

14.8

18.5

22.2

25.9

29.6

kW

33.3

3 5 7 9 11 13 15 17 19 21h

E-Total

14.35 kWh

E-Today 11.33 kWhNormal

Communicate Set
Language & Time
Grid Compliance
Clear Error
Clear Energy
LCD Setting
Factory Reset

PV Mode Setting
Exit

Change Password

Suntrio Plus Series

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Change Password

3. Enter the new password and
click OK to save the change.

PV Mode Setting

1. In the main LCD interface,
press “ENT” button, then press
▶ to enter into “Setting”.

2.Press▼andthenpressENTto
enter into “PV Mode Setting”.
Press▲and ▼to choose PV
mode.then choose to confirm.
1-- PV1,PV3,PV2 independent
2--PV1//PV2; PV3 independent
3--PV1//PV3; PV2 independent
4--PV2//PV3; PV1 independent
5-- PV1//PV2// PV3
Attention: This mode shall be
set before the inverter is
connected to the power grid, and
don’t set it when the inverter is
being connected to the grid.

Power

1230W

E-Today

11.33 kWh

T-Today

1.7 h

T-Total

4.6 h

15-07-09 15：47

Graph

Setting Run-Info

About

0

3.7

7.4

11.1

14.8

18.5

22.2

25.9

29.6

kW

33.3

3 5 7 9 11 13 15 17 19 21h

E-Total

14.35 kWh

E-Today 11.33 kWhNormal

Communicate Set
Language & Time
Grid Compliance
Clear Error
Clear Energy
LCD Setting
Factory Reset
Change Password

Exit

PV Mode Setting

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6.2.5 Inquiry of Parameters of Inverter

1. Inquiry of Operating Parameters

1. In the main LCD interface, press
“ENT” button, then press ▶ to

enter into “Parameters”.

2. Press ENT to enter into
“Run-Info”, then press ▼or▲to
select the needed parameters,press
ENT to enter and to check the
parameters.

2. Inquiry of the Information of Inverter

1. In the main LCD interface, press
“ENT” button, then press ▶ to

enter into “About”.

2. Press ENT to enter into “About”
to check the equipment type, series
number, machine code, software
version of display panel,
mainframe version of the control
panel and the settings of country.

Power

1230W

E-Today

11.33 kWh

T-Today

1.7 h

T-Total

4.6 h

15-07-09 15：47

Graph Setting

Run-Info

About

0

3.7

7.4

11.1

14.8

18.5

22.2

25.9

29.6

kW

33.3

3 5 7 9 11 13 15 17 19 21h

E-Total

14.35 kWh

E-Today 11.33 kWhNormal

DC-Parameters
Error-Records
Module-Inform
Exit

AC-Parameter

Power

1230W

E-Today

11.33 kWh

T-Today

1.7 h

T-Total

4.6 h

15-07-09 15：47

Graph Setting Run-Info

About

0

3.7

7.4

11.1

14.8

18.5

22.2

25.9

29.6

kW

33.3

3 5 7 9 11 13 15 17 19 21h

E-Total

14.35 kWh

E-Today 11.33 kWhNormal

Suntrio Plus Series

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6.3 Monitoring Operation

The equipment is equipped with a RS232 and a RS485 interface, and the RS232
interface can be connected to Wi-Fi module, Ethernet module, GPRS module
which can be used in the monitoring of the operation status.

①

By connecting the Internet through Wi-Fi module and uploading the inverter
data to the server, users can monitor the operational information of the inverter by
web version web portal or mobile APP (please download the mobile APP from
SAJ official website) remotely.

②

By connecting the Internet through Ethernet module and uploading the inverter
data to the server, users can monitor the operational information of the inverter by
web version web portal or mobile APP (please download the mobile APP from
SAJ official website) remotely.

③

By connecting the Internet through GPRS module and uploading inverter data to
the server, users can monitor the operational information of the inverter by web
version web portal or mobile APP (please download the mobile APP from SAJ
official website) remotely.

Users can apply a Modbus protocol through RS485 together with a SAJ Logger to
monitor the data of the inverter. For detailed operation please refer to the SAJ
Logger User Manual.

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Chapter 7 Fault Code and Troubleshooting

LCD displays Fault codes as shown in the table below:

Error Code Explanation

01 Relay Error Master

02 Storer Error Master

03 High Temperature Master

04 Low Temperature Master

05 Lost Interior Communication Master

06 GFCI Devices Error Master

07 DCI Devices Error Master

08 Current Sensor Master

09/11/13 L1/L2/L3 Voltage High Master

10/12/14 L1/L2L3 Voltage Low Master

15/16/17 L1/L2/L3 Average Voltage of 10 minutes High Master

18/20/22 L1/L2/L3 Frequency High Master

19/21/23 L1/L2/L3 Frequency Low Master

24/25/26 L1/L2/L3 Grid Lost Error Master

27 GFCI Error Master

28/29/30 L1/L2/L3 DCI Error Master

31 Insulation Error Master

32 Bus Voltage Unbalance Master

33 Bus Voltage High Master

34 Bus Voltage Low Master

35/36/37 L1/L2/L3 Current High Master

38 Bus Voltage High Of Hardware Master

39/40 PV1/PV2,PV3 Current High of Hardware Master

41/42/43 L1/L2/L3 Current High of Hardware of Grid Master

45/46/47/48 Fan 1/2/3/4 Error Master

50 Lost interior communication Slave

51/52/53 L1/L2/L3 Data Consistency of Voltage Error Slave

54/55/56 L1/L2/L3 Data Consistency of Frequency Error Slave

Suntrio Plus Series

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57 Data Consistency of GFCI Slave

58/59/60 L1/L2/L3 Data Consistency of DCI Slave

61/63/65 L1/L2/L3 Grid Voltage High Slave

62/64/66 L1/L2/L3 Grid Voltage Low Slave

67/69/71 L1/L2/L3 Frequency High Slave

68/70/72 L1/L2/L3 Frequency Low Slave

73/74/75 L1/L2/L3 No Grid Error Slave

76/77/80 PV1 /PV2/PV3 Voltage High Slave

78/79/82 PV1/PV2/PV3 Current High Slave

81

Lost Communication Between Display board & Control board
Master

83

Grouding detect Error Master

84

PV Input Error Master

Table7.1 Error Code

General troubleshooting methods for inverter are as follows:

Table 7.2 Troubleshooting

Error Troubleshooting

Relay Error

If this error occurs frequently, please contact your distributor or
phone SAJ.

Storer Error

If this error occurs frequently, please contact your distributor or
phone SAJ.

Temperature High
Error

Check whether the radiator is blocked, whether the inverter is in too
high or too low temperature, if the above mentioned are in normal,
please contact your distributor or phone SAJ.

GFCI Device Error

If this error occurs frequently, please contact your distributor or
phone SAJ.

DCI Device Error

If this error occurs frequently, please contact your distributor or
phone SAJ.

Current Sensor Error

If this error occurs frequently, please contact your distributor or
phone SAJ.

AC Voltage Error

·Check the connection between the inverter and the grid.

·Check the settings of the on-grid standards of the inverter.

·If the volt of the grid is higher than the volt regulated by local grid,
please inquire the local grid workers whether they can adjust the volt
at the feed point or change the value of the regulated volt.

·If the voltage of the grid is in regulated range as allowed and LCD

Suntrio Plus Series

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still in this error, please contact your distributor or phone SAJ.

Frequency Error

Check the set of country and check the frequency of the local grid, if
the above mentioned are in normal, please contact your distributor or
phone SAJ.

No Grid Error

Check the connection status between the AC side of the inverter and
the grid, if the above mentioned are in normal, please contact your
distributor or phone SAJ.

GFCI Error

Check the insulation resistance of the positive side and cathode side
of the solar panel; check whether the inverter is in wet environment;
check the grounding of the inverter. If the above mentioned are in
normal, please contact your distributor or phone SAJ.

DCI Error

If this error exists always, please contact your distributor or phone
SAJ.

ISO Error

Check the insulation resistance of the positive side and cathode side
of the solar panel; check whether the inverter is in wet environment;
check whether the grounding of the inverter is loose or not. If the
above mentioned are in normal, please contact your distributor or
phone SAJ.

Current High

Check the connection status between the inverter and the grid and
test whether the volt of the grid is stable or not, if the above
mentioned are in normal, please contact your distributor or phone
SAJ.

Bus Voltage High

Check the settings of the solar panel. SAJ’s system design software
can help you.If the above mentioned are in normal, please contact
your distributor or phone SAJ.

PV Current High

If this error exists always, please contact your distributor or phone
SAJ.

PV Voltage Fault

Check the settings of the solar panel. SAJ’s system design software
can help you. If the above mentioned are in normal, please contact
your distributor or phone SAJ.

Lost Communication

Check the connection of communication cables between control

board and display board. If the above mentioned are in normal,

please contact your distributor or phone SAJ.

Grouding detect
Error

Check Gird phase line connect to ground or not. If the above

mentioned are in normal, please contact your distributor or phone

SAJ.

PV Input Error Check PV mode setting is right or not.If the above mentioned are in

normal, please contact your distributor or phone SAJ.

Suntrio Plus Series

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Chapter 8 Recycling and Disposal

This device should not be disposed as residential waste. An Inverter that has

reached the end of its life and is not required is to be returned to your dealer or you

must find an approved collection and recycling facility in your area.

Suntrio Plus Series

-47-

Chapter 9 Guarantee Service

Please refer to the warranty card.

Suntrio Plus Series

-48-

Chapter 10 Contact SAJ

Guangzhou Sanjing Electric Co., Ltd.

SAJ Innovation Park, No.9, Lizhishan Road, Guangzhou Science City, Guangdong,

P.R.China.

Postcode: 510663

Web: http: //www.saj-electric.com

Technical Support & Service

Tel: [phone]

Fax: [phone]

E-mail: [e-mail]

International Sales

Tel: [phone] 8588/6660 0086

Fax:[phone]

E-mail: [e-mail]

Domestic Sales

Tel: [phone]

Fax: [phone]

Suntrio Plus Series

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SAJ Warranty Policy

Standard Warranty Period

Guangzhou Sanjing Electric, Co., Ltd (“SAJ”) grants a standard warranty period of

66 months (5.5 years) for the Sununo-TL Series inverters & Suntrio-TL Series

inverters and Sununo Plus Series inverters & Suntrio Plus Series inverters, starting

from the date of shipment from SAJ factory or 60 months (5 years) starting from

the date of purchased invoice marked (whichever is longer).

Extension of Warranty

The purchaser of SAJ inverters (Sununo-TL Series inverters & Suntrio-TL Series

inverters and Sununo Plus Series inverters & Suntrio Plus Series inverters) should

extend the warranty period in 18 months from the date of settlement or 30 months

from the date of shipment from SAJ by providing the serial number of the unit and

purchased receipt (whichever is shorter). You can purchase the warranty extension

for 10 years, 15 years, 20 years or 25 years but do not apply the extension beyond

the specified date, or else your application will be unacceptable. Please refer to the

Warranty Extension Order Form for more details.

Once the purchase of the warranty extension goes into effect, SAJ will send the

warranty extension certificate to the customer for confirming the extended

warranty period.

Warranty Conditions

If your inverter gets fault and requires troubleshooting, please contact your

distributor or dealer directly. Alternatively, feedback briefly to SAJ service hotline

for logging and send your warranty card to our service department by fax/email to

process the warranty claim.

During the Warranty Period, SAJ covers all costs for replacing any product or parts

Suntrio Plus Series

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of the product proved to be defective in design or manufacture. To claim the

warranty under the warranty policy of SAJ, you need to supply us with the

following information and documentation regarding the faulty inverter:

1.Product Model No.(e.g. Suntrio Plus 20K) and serial number.

(e.g.22030G1825EN00001)

2. Copy of the invoice and warranty certificate of the inverter.

3. Copy of the installation report and installation date.

4.Error message on LCD screen (if available) or any information which would be

helpful to determine the defect.

5.Detailed information about the entire system (modules, circuits, etc.).

6.Documentation of previous claims/exchanges (if applicable).

After receiving above information, SAJ will decide how to proceed the service

1.Repaired by SAJ factory, or SAJ authorized service center overhaul.

2.Repaired on-site by SAJ Service Center.

3. Offer a replacement device of equivalent value according to model and age.

In the case of an exchange, the remaining portion of the original warranty period

will be transferred to the replacement device. You will not receive a new certificate,

as your entitlement is documented at SAJ.

If the inverter needs to be replaced following assessment, SAJ will send a

replacement unit immediately. The defective inverter should be sent back to the

closest SAJ Service Center by packing in its original package if possible.

Suntrio Plus Series

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Service after warranty expiration

If the inverters for maintenance are out of warranty, SAJ charges an on-site service

fee, parts, labor cost and logistic fee to end-user. Detailed standard refers to the

listed table.

Item Return Factory Maintenance On-site Maintenance

Without parts

replacement

Labor + Logistic fee

(to & from SAJ)

Labor + On-site attendance

fee

With parts replacement

Labor + Parts + logistic fee

(to & from SAJ)

Labor + On-site attendance

fee + Parts

■ On-site attendance fee: Cost of travel and time for the technician in attending

on-site.

■ Parts: Cost of replacement parts (including any shipping/admin fee that may

apply).

■ Labor: Labor time fee charged for the technician, who is repairing, maintaining,

installing (hardware or software) and debugging the faulty product.

■ Logistic fee: Cost of delivery, tariff and other derived expense when defective

products are sent from user to SAJ or/and repaired products are sent from SAJ to

user.

Exclusion of Liability

Any defect caused by the following circumstances will not be covered by the

manufacturer’s warranty (the Dealers or Distributors are responsible and

authorized by SAJ for the following investigation):

◆

“Warranty Card” not being sent back to Distributor/Dealer or SAJ;

◆

Product modified, parts replaced or attempt to maintain;

◆

Changes, or attempted repairs and erasing of series number or seals by non SAJ

Suntrio Plus Series

-52-

technician;

◆

Incorrect installation or commissioning;

◆

Failure to comply with the safety regulations (VDE standards, etc.);

◆

The inverter has been improperly stored and damaged while being stored by the

Dealer or the end user;

◆

Transport damage (including scratch caused by movement inside

packaging during shipping).A Claim should be made directly to shipping

company/insurance Company as soon as the container/packaging is unloaded and

such damage is identified;

◆

Failure to follow any / all of the user manual, the installation guide and the

maintenance regulations;

◆

Improper use or misuse of the inverter;

◆

Insufficient ventilation of the inverter;

◆

Influence of foreign objects and force majeure (lightning, grid overvoltage,

severe weather, fire, etc.)

◆

For further information on SAJ warranty regulation and reliability, please visit

our website: www.saj-electric.com.

Suntrio Plus Series

-53-

Warranty Card

The installer should fill in the second form while installing the inverter. For

warranty claim, please complete the below forms and send this page to SAJ

attached with the Customer’s invoice.

For Customer to fill in

Name:

City: Country: Zip:

Tel: Fax: E-mail:

Information on Device

Device type: Serial No.(S/N):

Invoice No: Commissioning date::

Fault time:

Error message (Display reading):

Brief fault description & photo:

Signature:

Date:

Suntrio Plus Series

-54-

For Installer to fill in

Modules Used:

Modules Per String: No. of String:

Installation Company: Contractor License Number:

Company:

City: Country: Zip:

Tel: Fax: E-mail:

Signature:

Date:

Guangzhou Sanjing Electric CO., LTD.

ADD: SAJ Innovation Park, No.9, Lizhishan Road, Science City,

Guangzhou High-tech Zone, Guangdong, P.R.China

Zip: 510663 Tel: [phone] Fax: [phone]

Web: http: //www.saj-electric.com

Edition No: V1.01