SAJ Sunfree 4K, Sunfree 5K, Sunfree 4K-HC, Sunfree 5K-HC User Manual

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User Manual

SAJ Hybrid Solar Inverter

Sunfree Series

www.saj-electric.com

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Preface

Thank you for choosing an SAJ hybrid 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

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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 input wire Connection ..................................................................... - 22 -

5.4 Backup Output Connection ................................................................... - 23 -

5.5 PV Connection .................................................................................... - 25 -

5.6 Battery connection ................................................................................ - 28 -

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5.7 Communication Connection .................................................................. - 29 -

Chapter 6 Debugging Instructions ..................................................... - 31 -

6.1 Introduction of Human-computer Interface .......................................... - 31 -

6.2 First Run Setup ...................................................................................... - 32 -

6.3 Monitoring Operation and Battery manage system .............................. - 55 -

Chapter 7 Fault Code and Troubleshooting ....................................... - 56 -

Chapter 8 Recycling and Disposal .................................................... - 60 -

Chapter 9 Guarantee Service ............................................................. - 61 -

Chapter 10 Contact SAJ ..................................................................... - 62 -

SAJ Warranty Policy .......................................................................... - 63 -

Warranty Card ...................................................................................... - 67 -

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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 hybrid solar

inverters:

Sunfree 5K, Sunfree 4K, Sunfree 5K-HC, Sunfree 4K-HC,

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

· There is possibility of during 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 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 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

Equipment standard with China Quality Inspection Center safety directive.

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.

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Chapter 3 Product Information

3.1 Application Scope of Products

Sunfree series products are hybrid solar inverters without transformers, and the

inverters are important components of energy storage systems.

The Sunfree 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,

Reduce the load pressure of the grid.

When the grid failure, provide 230V AC source to supply important loads,

achieve off-grid backup power supply function.

Figure3.1 Sunfree series application

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3.2 Specification for Product Model

Sunfree 5k -HC

① ② ③

① Sununo Plus represents for product name. ② XK represents rated power XkW of inverter, for example 5K means 5kW. ③ HC represents the inverter has the function of high charge current.

3.3 Overview and Dimensions of products

The dimensions of Sununo Plus series products is shown in Figure 3.2.

Sunfree 4K/5K/4K-HC/5K-HC

Figure 3.2 Dimensions of Sunfree series Products

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3.4 Datasheet

Sunfree 4K/5K specification sheet

MODEL Sunfree 4K Sunfree 5K

DC Input Data

Max. PV Array Power [W] 4200 5200

Maximum PV Array Open Circuit Voltage [v] 580

MPPT Range @ Operating Voltage [v]

90～550

Start Voltage [v] 120

Min. DC Voltage [v] 80

Max. DC Input Current PV1/PV2[A] 11 / 11

Number of DC Connection/MPPT Tracker Number

2 / 2

DC Switch Integrated

Battery Data

Battery Type Li-ion battery / Lead-acid battery

Battery Voltage/Range of Voltage [v]

48 / 42～58

Maximum/Rated Charge Current [A] 50 / 50

Min. Battery Capacity [AH] 100

Charging Curve

3-Stage Adaptive With Maintenance / 3-Stage

Adaptive With Maintenance

Grid-Tie Operation

Rated Output Power [W] 36801 / 4000 4600² / 5000

Rated Output Current [A] 16 / 17.4 20 / 21.7

Rated Grid voltage/Range [v]

220V，230V，240V / 180V～280V

Rated Grid Frequency / Range [Hz] 50Hz / 60 Hz ± 5 Hz

Power Factor >0.99

Total Harmonic Distortion (THDi) <3%

AC Output Data

Rated Output Power 36801W/ 4000VA 4600²W/ 5000VA

AC Voltage Regulation [v] 230 ± 1%

Rated Output Frequency Regulation [Hz] 50 ± 0.02

Total Harmonic Distortion (THDi)

<5%（non-linear load）；<3%（Linear load）

Overload（Batt. Mode）

6000VA(150% 10s) 7500VA(150% 10s)

Overload（Grid. Mode）

6000VA(150% 1min) 7500VA(150% 1min)

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Efficiency

Max. Efficiency 97.60%

Euro Efficiency 97.00%

MPPT Adaptation Efficiency >99.5%

Protection

AC Short Circuit Protection

Integrated

Overload Protection

Integrated

DC Voltage High/Low Protection

Integrated

AC Voltage High/Low Protection Integrated

AC Frequency High/Low Protection Integrated

High Temperature Protection Integrated

Anti-islanding protection

Integrated

Valley Peak Period Selection

Integrated

Interface

PV Connection Type MC4/H4

Battery Connection Type Terminal Block

AC Connection Type Terminal Block

Display LCD

Communication

RS485*2& RS232（Integrated）；Wi-Fi / GPRS /

Ethernet（Optional）

General Data

Topology Transformerless

Protection Degree IP65

Ambient Temperature Range

-25～60℃（45～60℃ derating）

Relative humidity

0～100%（No Condensing）

Max. Operating Altitude 2000m

Noise emision <25dB

Cooling method Nature convection

Dimensions（W×H×D）

470mm*470mm*200mm

Weight 30kg

Certification CE & VDE & SAA

Standard Warranty 5 Years

1.Meet the grid standard that AC current per phase not exceeding 16A.

2.Meet the VDE - ARN - N 4105 that biggest apparent power of single-phase is 4600 VA.

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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 be well ventilated.

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 uncertain 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

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.

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A B C D E

F G H I

Table 4.1 Assembly Parts List

Object Name Number Unit Remarks

A Inverter 1 Set

B Rear Panel 1 Piece

C DC Connector 2 Pair

D M6×50 hex head screw 3 Piece

E Expansion tube 3 Piece

M5×12 hex head screw

and gasket

2 Piece

G AC connector 1 Piece

H H4 Splitter 1 Piece

I User Manual 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

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 forwards, 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 the solidly of wall for inverter,

including accessories. Please ensure the Rear Panel tightly.

Before installation, make sure that the wall has enough strength to hold the screws

and bear the weight of the equipment, Please make sure the equipment is installed

properly.

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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）（This temperature range is not equivalent to the temperature range required by the battery pack）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

hybrid solar inverters are installed same area, the following safety clearance in

Figure 4.2 shall be followed for proper ventilation conditions.

50CM

30CM

50CM

30CM

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 mounting position should be marked as shown in Figure 4.3.

Figure 4.3 Dimensions of rear panel of Sunfree inverter

4.4.2 Drill Holes and Place the Expansion Tubes

According to the guides, drill 4 holes in the wall (in conformity with position marked

in Figure 4.4, and then place expansion tubes in the holes using a rubber mallet.

260

100

Ø8

Figure 4.4 Drill holes dimensions of Sunfree inverter

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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 of Sunfree inverter

4.4.4 Mount the Inverter

Carefully mount the inverter to the rear panel as shown in Figure 4.6, Make sure

that the rear part of the equipment is closely mounted to the rear panel.

Figure 4.6 Mount Sunfree inverter

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Chapter 5 Electrical Connection

5.1 Safety Instruction 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 in conformity with national rules and regulations.

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

WARNING

· When the photovoltaic array is exposed to light, it supplies a DC voltage to the inverter.

NOTICE

·Electrical connection should 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,on AC output port is III.

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5.2 Specifications for Electrical Interface

Figure 5.1 Electrical Interface of Sunfree inverter

Table 5.1 Specifications for Interface

Code Name

A Battery Plug Terminal

B RS485 & DRM Port

C RS232 /Wi-Fi Port

D DC Input

E DC Switch

F AC Output

G Backup Plug Terminal

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5.3 AC input wire Connection

Caution：For safety operation and regulation compliance, it`s requested to install a breaker

(600V/60A) between grid and inverter.

Cable Cross-sectional area（mm²）

External diameter（mm）

Range Recommend

4.0-6.0 4.0 4.2~5.3

Table 5.2 Recommended Specifications of AC Cables

5.3.1 Open the waterproof cover, feed the AC cable through the AC waterproof hole.

Figure 5.2 Thread the cables

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5.3.2 Connect the cables according to connection marks of L, N and PE.

Figure 5.3 Connect the Cables

5.3.3 Secure all parts of the AC connector tightly.

Figure 5.4 Screw the Connector

5.4 Backup Output Connection

Cable Cross-sectional area（mm²）

External diameter（mm）

Range Recommend

4.0-6.0 4.0 4.2~5.3

Table 5.3 Recommended Specifications of AC output Cables

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5.4.1 Feed the AC cable through the AC waterproof hole.

Figure 5.5 Feed cable

5.4.2 Connect the cables according to connection marks of L, N and PE.

Figure 5.6 Connect cable

5.4.3 Screw all parts of the AC connector.

Figure 5.7 Screw the connector

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5.4.4 Connect the AC connector to the equipment securely, ensuring the pins are connected directly. Then the connection of AC cable is completed.

Figure5.8 Connect the Inverter

5.5 PV 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

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

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

Figure 5.9 Positive Connector

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

Figure 5.10 Cathode Connector

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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 with appropriate length.

1.Positive Cable 2. Cathode Cable

Figure 5.11 Connecting Cables

（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,

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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 corresponding

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 5.12 Connect the Inverter

NOTICE

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

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5.6 Battery connection

Caution：For safety operation and regulation compliance, it`s requested to install a breaker

(600V/150A) between battery and inverter.

Cross-sectional Area of Cables（mm²）

Outside Diameter of the

Cables（mm）

Scope Recommended Value

22-25 22 25~30

Table5.4 Recommended Specifications of DC Cables

5.6.1 Open the waterproof cover, then feed the battery cable through the AC waterproof hole.

Figure5.13 Open the Waterproof Cover

5.6.2 Fixing the battery cable on the battery’s copper terminal by positive and negative in order.

Figure 5.14 Connect the Battery Cable

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5.7 Communication Connection

5.7.1 Serial Port Definition

Sunfree Series Hybrid Inverter has a RS232 communication port Integrated .

Figure 5.15 9-Pin serial port

Pin Number Description Effect

DCD（Data Carrier Detect）

Data carrier detection

RxD（Received Data）

Serial data input

TxD（Transmitted Ready）

Serial data output

DTR（Data Terminal）

Data terminal ready

GND（Signal Ground）

Ground line

DSR（Data Send Ready）

Data Send Ready

7 RTS (Request To Send) Request To Send

8 CTS (Clear To Send) Clearly Send

9 RI (Ring Indicator) Ringtone

Table 5.5 9-Pin serial port introduction

(1) RS232 connect with Wi-Fi module, please reference Wi-Fi user manual.

(2) RS232 connect with Ethernet module, please reference Ethernet user manual.

(3) RS232 connect with GPRS module, please reference GPRS user manual.

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5.7.2 RJ45 Pin Port Definition.

Left

1 EXT SYNC

2 GND

3 NONE

4 CANH

5 CANL

6 GND

7 RS485-A+

8 RS485-B-

Right

1 DRM 1/5

2 DRM 2/6

3 DRM 3/7

4 DRM 4/8

5 RefGen

6 Com/DRM 0

7 V+

8 V-

Table 5.6 RJ45 pin port definition

5.7.3 Open the waterproof cover, pass the prepared communication cable through each component, insert corresponding communication port, then tighten the screws.

Figure 5.16 Connection of communication cable

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Chapter 6 Debugging Instructions

6.1 Introduction of Human-computer Interface

ESC

ENT

POWER

FAULT

RUN

ESC

ENT

POWER

FAULT

RUN

A B C

DE F

Figure 6.1 Human-computer Interface

Table 6.1 Instructions of the Interface

Object Description

Yellow LED light = Power - After the equipment is powered on, the yellow LED

light will go on

Red LED light = Error - The red LED light will go on when an Error occurs, it

will go off automatically after Errors are resolved

Green LED light = operation - The green LED light will flash when the equipment

is in normal operation.

Down/Right Click

Up/Left Click

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The inverter provides two buttons for inquiry of operational information and

parameters, these two buttons can be used repeatedly.

Name of the button Operation Description

ESC

Press time shorter than 2 second

Return to parent menu or cancel the demand

Press time longer than 2 second

Cut off output to load

ENT

Press time shorter than 2 second

Move the cursor to the right or enter submenu or edit status

Press time longer than 2 second

Turn on output load

Table 6.2 Instructions for buttons

6.2 First Run Setup

6.2.1 System time setting

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

system, and the inverter LCD will display as below:

Figure 6.2.1-1 System time setting

When the cursor selected the edit box, press ENT to edit status, set the target value

by pressing or . If Press time longer than 2 seconds, the value will decrease or

increase quickly. With the edit status, switching different value setting by pressing

ENT. Drop out of edit status by pressing ESC. With the edit status, switch different

edit box or button by pressing or .

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Operating and interface description：

With user selected the edit box of Date, edit the system date by pressing ENT, and

switch to the setting of M/D/Y, set the target value by pressing or , drop out of

edit status by pressing ESC. Same operation as edit system time.

Note: With the cursor selected the edit box, appear dialog box to request setting

system time while press ESC. This dialog box prompt user not across the debugging

at first time running. LCD will display as below:

Figure 6.2.1-2 System time setting (Prompt by ESC)

6.2.2 Battery data setting

While inverter using at first time, after set system time, then set the battery data,

LCD will display as below:

Figure 6.2.2-1 Battery setting

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Operating and interface description：

With user selected the edit box of Battery Type, edit the battery species by pressing

ENT, switch the selected object by pressing or , drop out of edit status by

pressing ESC; Selected the edit box of Battery Capacity, set the battery capacity,

selected the edit box of Discharge, set the Battery discharge depth.

Note: With the cursor selected the edit box, appear dialog box to request setting

system time while press ESC. This dialog box prompt user not across set battery

data.

Figure 6.2.2-2 Battery setting（Prompt by ESC）

6.2.3 Set The Country

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

country of usage, and the inverter LCD will display as below:

Figure 6.2.3-1 Country setting

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Operating and interface description：

Users can press "▼ " or"▲ " to select the correct country and press "ENT" button to

confirm the selection.

While a country contain several compliances, they will occur the next to this country, as shown below：

Figure 6.2.3-2 Country setting（Country with several compliances）

LCD will show countries to selected, users could press or to move cursor

“>” , select correct country and press “ENT”.

If users can not fond out the corrsponding country,please stop the setting and

contact the after sales for confirmatior.

Note: With the cursor selected the edit box, appear dialog box to request setting

system time while press ESC. This dialog box prompt user set country grid

compliance, not across this step.

Figure 6.2.3-3 Grid compliance setting（Prompt by ESC）

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6.2.4 Inverter System Main Interface

After the country has been set, system will reset and show main interface, as show

below. ( Standby mode ).

Figure 6.2.4-1 Main Interface

If system running normally, main screen will show the power flowing illustration, as

show below.

Figure 6.2.4-2 Power flow illustration（System running normally）

If system running in different states, power flow illustration will switch as states. For

example, when in Off-grid state, cut off the Grid, the dynamic power flow arrow will

disappear. When no PV power, the PV dynamic power flow arrow will disappear.

When no load output, the load output dynamic power flow arrow will disappear.

In system main screen, user could press or to view chart.

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Figure 6.2.4-3 PV power and daily generation

Figure 6.2.4-4 Power Trading of Grid and daily generation

Figure 6.2.4-5 Load power and daily generation

As above three figures, the power and daily generation, the figure show the PV,

loads or trading of Grid in all day long. E-Today representative the daily power

generation.

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Figure 6.2.4-6 Daily generation in this month

In the figure above, show the PV input all days in this month.

Figure 6.2.4-7 Daily sell to Grid in this month.

In the figure above, show the daily output all days in this month.

Figure 6.2.4-8 Daily buy from Grid in this month

In the figure above, show the daily input from Grid all days in this month.

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Figure 6.2.4-9 Daily load consumption in this month

In the figure above, show the daily output from load all days in this month.

Figure 6.2.4-10 Monthly PV, trading with Grid, load consumption in this year

In the figure above, as show monthly power of PV, Grid(Trading power), and load

output. It also show the accumulate PV, Grid, and load power in this year in the right

of figure.

1.1

2.2

3.3

4.4

5.5

6.6

7.7

8.8

9.9

10.0

11.0

0 2016 2017 2018 2019 2020 2021 Year

kWh

E-Total

5.48kWh

Sell

E-Total

4.30kWh

Buy

E-Total

3.28kWh

Load

E-Total

4.46kWh

Figure 6.2.4-11 Totally PV, Trading power and load consumption

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In the figure above, it shows the annual power of PV, Grid(trading power) and load

output in recent 6 years. It also show the finally accumulate power of PV, Grid, and

load power in this year in the right of figure.

With system interface status, user can back to system power flow main screen by

pressing ESC button. If pressing ENT button, main screen will occur the drop-down

menu, as show blow.

Figure 6.2.4-12 Drop-down menu

User could press or to selected the corresponding option

Figure 6.2.4-13 Switch menu option left/right

While the option has been selected, press ENT button to next interface. Figure below shows the main edit interface that enter the ‘Graph’：

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Figure 6.2.4-14 Main edit interface

If the menu option has the second menu interface, it will appear by press the ENT

button. The figure below shows the second menu of “Setting”:

Figure 6.2.4-15 The second menu of “Setting”

The figure below shows the second menu of “Run-Info”:

Figure 6.2.4-16 The second menu of “Run-Info”

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The figure below shows the interface of “About” by pressing ENT.

Figure 6.2.4-17 The interface of“About”

The main edit interface, press or to select menu icon, as shown below:

Figure 6.2.4-18 Menu icon selected

By the main edit interface, press ESC button to back menu option selected status;

press ENT button to enter the subinterface of main menu icon. The figure below shows the PV parameter while selected the PV panels：

Figure 6.2.4-19 PV parameter

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In the main edit interface, by selected inverter icon, press ENT button to show the

parameter of inverter’s running information:

Figure 6.2.4-20 Information of inverter’s running

In main edit interface, by selected Grid icon, press ENT button to show the

parameter of inverter’s output information:

Figure 6.2.4-21 Information of inverter’s output

In main edit interface, by selected battery icon, press ENT button to show the

parameter of inverter’s battery information. (The figure below shows the Li-ion

battery )

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Figure 6.2.4-22 Information of Li-ion battery

Figure 6.2.4-23 Information of Lead-acid battery

In main edit interface, by selected load icon, press ENT button to show the

parameter of load’s output information.

Figure 6.2.4-24 Information of load’s output

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Selected the “Run-Info” in menu, press ENT to the second menu, then select “Error

Records”, press ENT to enter error and warning, as shown below:

Figure 6.2.4-25 Error and warning

Selected the “Setting” in menu, press ENT to the second menu, then select “Mode

Setting”, press ENT to enter the interface of choosing running mode, as shown

below:

Figure 6.2.4-26 Parameter setting of Smart Home Mode

With this mode, press or to switch Sell Energy Setup, AC Charge Setup, AC

DisCharge Setup.

To set up “Sell Energy Setup”, press or to switch Enable or Disable, as shown

below.

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Figure 6.2.4-27 Sell Energy Setup

To set up “AC Charge Setup” and “AC DisCharge Setup”, if not to add parameter,

the default will show no parameter, as shown below:

Figure 6.2.4-28 Add AC Charge/Discharge Setup

To set up AC Charge/Discharge parameter, in the interface of add “AC

Charge/Discharge Setup”, press or to select different edit box, press ENT to

enter edit status, press ESC to out edit status. With the alone parameter has selected

status, press ESC button to select current parameter, then edit these information by

or , as shown below.

Figure 6.2.4-29 Edit the AC Charge/Discharge Setup parameter

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In the alone parameter selected records, select “Workday” to choose working date,

press ENT to select or cancel, press ESC to return to previous interface, as shown

below:

Figure 6.2.4-30 Select WorkDay’s interface

Seting prevent revense folw, as shown below:

Figure 6.2.4-31

Prevent revense folw Setup

Select “Setting” in menu, press ENT button to pull out the second menu, select

“Battery Setting” and press ENT button to enter battery parameter setup interface, as

shown below:

2016-09-16 18:26:31

Graph Setting Run-Info About

Enable

Disable

Meter Addr:

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Figure 6.2.4-32 Interface of Battery parameter setup

Select “Setting” in menu, press ENT button to pull out the second menu, select

“System Setting” and press ENT button to enter system parameter setup interface, as

shown below:

Figure 6.2.4-33 Interface of system parameter setup

With the interface of system parameter setup, press or to select corresponding

parameter, For example the option of “Language Setting”.

Figure 6.2.4-34 System language setup

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E.g select option of“Date&Time Setting”。

Figure 6.2.4-35 System date and time setup

E.g select option of “Display Setting”

Figure 6.2.4-36 Parameter of display setup

E.g select option of “Factory Setting”

Figure 6.2.4-37 Factory setting

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E.g select option of “Clear Energy”

Figure 6.2.4-38 Clear Energy

E.g select option of “Clear Error Records”

Figure 6.2.4-39 Clear Error Records

E.g select option of “Grid Compliance”

Figure 6.2.4-40 Grid Compliance setup

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E.g select option of “Communication Set”

Figure 6.2.4-41 Communication Set

E.g select option of “Change Password”

Figure 6.2.4-42 Change Password

To change system password, enter the interface of changing system password, input

a new password, then can be changing the general admin’s password. System super

admin’s password is “658513”, can not be changed.

E.g select option of“Beep&Led Setting”.

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Figure 6.2.4-43 Setup of Beep and Led

While occur error or warning in system, LCD will appear prompt box to show the

information about the error or warning. As shown below:

Figure 6.2.4-44 Interface of warning

While occur error or warning, LCD will display the prompt box above, if system has

error alarm, the prompt box will appear and system beep will work, the status light

will become red all the time.

The prompt interface of input password, as shown below:

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Figure 6.2.4-45 The prompt interface of input password

In the interface of password input, press or to edit the password. ENT button for

entering edit status, press or again to input the password. ESC button for out of

edit status, select “OK” to enter next interface.

ENT button pressing time longer than 2s, LCD will appear prompt box of input load,

press ENT to confirm, inverter begin to enter loading status. As shown below:

Figure 6.2.4-46 Prompt of input load

Figure 6.2.4-47 Process of input load

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ESC button pressing time longer than 2s, LCD will appear prompt box of cutoff

load, press ENT to confirm, inverter begin to out of load. As shown below:

Figure 6.2.4-48 Process of cutoff load

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6.3 Monitoring Operation and Battery manage system

The equipment is equipped with an RS232 interface, RS232 can transfer to Wi-Fi

module, Ethernet module and GPRS module, which can be used in the monitoring of

the operation status.

By connecting the internet through a Wi-Fi module and uploading the data of the

inverter to 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’s official website) remotely.

By connecting the internet through a Ethernet module and uploading the data of the

inverter to 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’s official website) remotely.

By connecting the internet through a GPRS module and uploading the data of the

inverter to 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’s official website) remotely.

The equipment is equipped with an RS485 interface, RS485 can be connected to

battery manage system, while battery parameter of inverter match with the

communication protocol of battery manage system, inverter would obtain the data as

the protocol from battery manage system.

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Chapter 7 Fault Code and Troubleshooting

Code Fault Information Explanation Fault type

01 Relay Err Relay Error Error

02 GFCI Device Err GFCI Devices Error Error

03 Fan Err Fan Error Error

04 Eeprom Err Storer Error Error

05 Lost Com.M<->S Err Interior Communication Error

06 ISO Err Insulation Error Error

07 Temp.High Err High Temperature Error

08 Temp.Low Err Low Temperature Error

09 Bus Volt.High Err Bus Voltage High Error

10 Bus Volt.Low Err Bus Voltage Low Error

11 GFCI Err GFCI Error Error

12 DCI Err DCI Devices Error Error

13 HWBus Volt.High Err Bus Voltage High Of Hardware Error

14 HWPV1 Curr.High Err PV1 Current High of Hardware Error

15 HWPV2 Curr.High Err PV2 Current High of Hardware Error

16 HWInv Curr.High Err Inverter Current High of Hardware Error

17 Inv Short Err Inverter short circuit error Error

18 Over Load Err Output overload error Error

19 PV1 Volt.High Err PV1 Voltage High Error

20 PV2 Volt.High Err PV2 Voltage High Error

21 PV1 Curr.High Err PV1 Current High Error

22 PV2 Curr.High Err PV2 Current High Error

23 SPS Err Auxiliary power error Error

24 EPO Err Emergency stop Error

25 Grid Volt.High Warn Voltage of Grid High Alarm

26 Grid Volt.Low Warn Voltage of Grid Low Alarm

27 Grid Freq.High Warn Frequency of Grid High Alarm

28 Grid Freq.Low Warn Frequency of Grid Low Alarm

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29 Grid Loss Warn Grid Lost Alarm

30 Grid Volt.10min Warn Average voltage of 10 minutes Alarm

32 PV Low Warn PV Voltage Low Alarm

34 Bat Volt.High Warn Battery voltage high Alarm

36 Bus SoftTimeOut Err Bus soft start time out Error

37 Lost Com.M<->S Err Lost interior communication Error

38 GND Loss Err Ground error Error

39 Bus Volt.High Err Bus Voltage High Error

40 Discharge Err Discharge failure Error

41 Bus Volt.Consis Err

Data Consistency of Bus Voltage

Error

42 Grid Volt.Consis Err

Data Consistency of Grid Voltage

Error

43 Grid Freq.Consis Err

Data Consistency of Grid

Frequency Error

Error

44 GFCI Consis Err Data Consistency of GFCI Error Error

45 DCI Consis Err Data Consistency of DCI Error

46 DVI Consis Err Data Consistency of DVI Error

47 CHG1 Curr Err Charging bridge 1 current error Error

48 CHG2 Curr Err Charging bridge 2 current error Error

57 Grid Volt.High Warn Voltage of Grid High Alarm

58 Grid Volt.Low Warn Voltage of Grid Low Alarm

59 Grid Freq.High Warn Frequency of Grid High Alarm

60 Grid Freq.Low Warn Frequency of Grid Low Alarm

61 Grid Loss Warn Grid Loss Alarm

62 Battery Open Warn Battery open Alarm

63 Battery High Warn Voltage of Battery High Alarm

64 Battery Low Warn Voltage of Battery Low Alarm

65 Lost Com.H<->M Err

Lost communication between

interface with main control panel

Error

66 HMI Eeprom Err Interface storer error Error

67 HMI RTC Err Interface RTC error Error

68 BMS Device Err Battery management system error Error

69 BMS Cell Volt.H Warn

Voltage of Battery management

Alarm

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system cell High

70 BMS Cell Volt.L Warn

Voltage of battery management

system cell Low

Alarm

71 BMS CHG Curr.H Warn

Battery management system charge

current high

Alarm

72 BMS Voltage Low Warn

Voltage of Battery management

system Low

Alarm

73 BMS Lost.Conn Warn Battery management system lost Alarm

Table 7.1 Warning & Error Code

Fault Information Troubleshooting

Relay Error