SAJ H2 Series User manual

Tel: [phone] Fax: [phone] Web: www.saj-electric.com
GUANGZHOU SANJING ELECTRIC CO.,LTD Add: SAJ Innovation Park,No.9, Lizhishan Road,Science City, Guangzhou High-tech Zone , Guangdong, P.R.China
H2 series
instruction manual
H2-3~6K-S2
SAJ HYBRID SOLAR INVERTER

HYBRID SOLAR INVERTER H2 SERIES

TABLE OF
contents
TRANSPORTATION
9.
Sta Up and Shut Down Inveer

1.1
Scope of
Application
1.2 Safety
1.2.1 Safety instruction
1.
SAFETY
precautions
This User Manual describes instructions and detailed procedures for installing, operating, main-
taining, and troubleshooting of the following SAJ hybrid solar inveers:
Please read the user manual carefully before any installation, operation and maintenance and
follow the instruction during installation and operation. Please keep this manual all time avail -
able in case of emergency.
Only qualied electricians who have read and fully understood all safety regulations contained
in this manual can install, maintain and repair the inveer. Operators must be aware of the
HYBRID SOLAR INVERTER INSTRUCTION MANUAL
high-voltage device.
DANGER
· DANGER indicates a hazardous situation, which, if not avoided, will result in death or serious inju.
WARNING
· WARNING indicates a hazardous situation, which, if not avoided, can result in death or serious inju or moderate inju.
CAUTION
· CAUTION indicates a hazardous condition, which, if not avoided, can result in minor or moderate inju.
NOTICE
· NOTICE indicates a situation that can result in potential damage, if not avoided.
01 02

1.2.2 Explanations of Symbols 1.2.3 Safety Instructions
Symbol
Description
This device is directly connected to public grid, thus all work to the inveer shall only be
carried out by qualied personnel.
Danger to life due to high electrical voltage!
There might be residual currents in inveer 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 suace
The components inside the inveer 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.
CE Mark
With CE mark & the inveer fullls the basic requirements of the Guideline Governing
Low-Voltage and Electro-magnetic Compatibility.
RCM Mark
Equipment meets safety and other requirements as required by electrical safety
laws/regulations in Australian and New Zealand.
No unauthorized peorations or modications
Any unauthorized peorations or modications are strictly forbidden, if any defect or
HYBRID SOLAR INVERTER INSTRUCTION MANUAL
damage (device/person) occurred, SAJ shall not take any responsibility for it.
· Do not touch the operating component of the inveer; 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 suace of the inveer while the housing is wet, otherwise, it might cause electrical shock.
· Do not stay close to the inveer while there are severe weather conditions including storm, lighting, etc.
· Before opening the housing, the SAJ inveer must be disconnected from the grid and PV generator; you must wait
for at least ve minutes to let the energy storage capacitors completely discharged after disconnecting from power
source.
WARNING
· The installation, seice, recycling and disposal of the inveers must be peormed by qualied personnel only in
compliance with national and local standards and regulations.
· Any unauthorized actions including modication of product functionality of any form may cause lethal hazard to the
operator, third paies, the units or their propey. SAJ is not responsible for the loss and these warranty claims.
· The SAJ inveer must only be operated with PV generator. Do not connect any other source of energy to the SAJ
inveer.
· Be sure that the PV generator and inveer are well grounded in order to protect propeies and persons.
CAUTION
sholy after operation.
· Risk of damage due to improper modications.
NOTICE
· Public utility only.
· The inveer is designed to feed AC power directly to the public utility power grid; do not connect AC output of the
inveer to any private AC equipment.
03 04
5min
Dangerous electrical voltage
· There is possibility of dying due to electrical shock and high voltage.
·The inveer will become hot during operation. Please do not touch the heat sink or peripheral suace during or

Figure 2.1
System oveiew
2.
PRODUCT
oveiew
H2 series is a hybrid photovoltaic inveer and it is applicable to both on-grid and o-grid solar
systems. The energy generated by PV system will be fed to loads rst, and then the surplus
energy can charge the batte for later use, if there is still excess more energy, it will be expo -
ed to the grid. H2 inveer can signicantly improve the self-consumption rate of solar energy
HYBRID SOLAR INVERTER INSTRUCTION MANUAL
and lower the dependency on grid.
H2 series
05 06

HYBRID SOLAR INVERTER INSTRUCTION MANUAL
2.3 Datasheet
2.2 Appearance
2.1 Packing list
Inveer Handle PV Plug Batte Plug Screw & expansion
bolt& washer
Figur
Dimensions of H2 series Product
07
13.6 16.7 18.2 22.7 27.3Max.Output Current [A]
Eciency
Max.Batte Charging/
Discharging Eciency
Max. Eciency
Euro Eciency
97.6%
97.0%
96.6%
Protection
AC Sho-circuit Protection Integrated
Overload Protection Integrated
Anti-islanding Protection Integrated(AFD)
AC Surge Protection Type II
DC Surge Protection Type II
AFCI Optional
Residual Current Mon-
itoring Unit
Batte Input Reverse
Polarity Protection
Integrated
Integrated
Inteace
Communication
PV Input
Batte
AC Output
Display
Communication Po
Wi-Fi/Ethernet/4G(Optional)/PLC(Optional)
CAN+RS485+DRM+CT+RS232
LED+LCD+APP(Bluetooth)
Plug-in connector
Quick Connector
MC4/H4
General Data
Noise [dBA]
Topology
Operating Temperature
Range
Cooling Method
Ambient Humidity
Altitude
<25
4000m(>3000m power derating)
0% ～ 100% Non-condensing
Natural Convection
-25°C to +60°C
Non-isolated
Mounting
Ingress Protection
Rear Panel
IP65
Weight [kg]
Dimensions[H*W*D] [mm]
17.6
󶀅499.0*385.5*193.5mm
Applicable Standard
Standard Warranty [Year]
CEI 0-21, VDE4105-AR-N, VDE0126-1-1, EN50438, G98, G99,
EN50549, AS4777.2,IEC62109-1&-2, EN61000-6-1/2/3/4
5 (standard)/10/15/20/25 (Optional)
Type H2-3K-S2 H2-3.6K-S2 H2-4K-S2 H2-5K-S2 H2-6K-S2
PV String Input
Max. PV Array Power
[Wp]@STC 4500 5400 6000 7500 9000
Max. DC Voltage[V]
MPPT Voltage range [V]
550
90 - 500
Nominal DC Voltage[V] 360
Sta Voltage/Min. Input 100
Max. DC Input Current [A] 16/16
Number of MPPT 2
No. of Strings per MPPT 1 / 1
Batte Input
Rated Charging/
Discharging Power [W] 3000 3680 4000 5000 6000
Batte Type Lithium batte
Batte Voltage Range [V] 85 - 450
Max. Charging/Disch-
arging Current [A] 30 / 30
AC Output (On-grid)
3000 3680 4000 4999 6000
3000 3680 4000 4999 6000
Max. AC Current from
Utility Grid [A]
15.0 16.7 20.0 21.727.3
AC Output [Back-up Mode]
Grid Frequency/ Ran-
ge [Hz]
Nominal AC Voltage [V]
3000 3680 4000 4999 6000Max. Output Power [VA]
Total Harmonic Disto-
ion[THDi]
Power Factor [cos φ]
Rated Output Voltage [V]
100
55
55
50, 60
L/N/PE, 220, 230
< 3%（ at nominal power）
0.8 leading~0.8 lagging
230Vac，L/N/PE
Rated Output Frequen-
cy [Hz] 50/60
Output THDv (@ Liner
Load) <3%
Max. AC Over Current
Protection[A]
Max. AC Fault Current[A]
Current Inrush[A]
Rated AC Power[W]
Max. AC Current
Output to Utility Grid [A]
Max. Sho Circuit Current
[A] 19.2/19.2
26.1 32.0 34.8 43.5 52.2
3600,60s 4416, 60s 4800, 60s 6000, 60s 7200, 60s
Peak Output Apparent
Power [VA]
Type H2-3K-S2 H2-3.6K-S2 H2-4K-S2 H2-5K-S2 H2-6K-S2
08
Rated Apparent
power[VA]
Communication
module （Optional）
3300 3680 4400 4999 6000
Max. Apparent
power[VA]
Voltage[V]
Rated/

3.
INSTALLATION
notes
The Determination
of the Installation
HYBRID SOLAR INVERTER INSTRUCTION MANUAL
3.1.1 Mounting position
DANGER
· Dangerous to life due to potential re or electricity shock.
· Do not install the inveer near any inammable or explosive items.
NOTICE
· This equipment meets the pollution degree II.
· Inappropriate or the harmonized installation environment may jeopardize the life span of the inveer.
· Installation directly exposed under intensive sunlight is not recommended.
· The installation site must be well ventilated.
The equipment employs natural convection cooling, and it can be installed indoor or outdoor.
(1) Do not expose the inveer to direct solar irradiation as this could cause power derating due
Figure 3.1
Mounting Method
09 10
to overheating.
(2) Mount veically or tilted backwards by max. 15 ° . Never install the inveer tilted forwards,
sideways, horizontally or upside down.
(3) Install the inveer at eye level for convenience when checking the display and possible
maintenance activities.
3.1
Position

HYBRID SOLAR INVERTER INSTRUCTION MANUAL
3.2
Mounting
Procedure
The mounting position should be marked as shown in Figure3.3.
2.Drill Holes and Place the Expansion Tubes
Drill 4 holes in the wall (in conformity with position marked in Figure 3.4, and then
place expansion tubes in the holes using a rubber mallet.
(4) When mounting the inveer, please consider the solidness of wall for inveer, including
accessories. Please ensure the Rear Panel mount tightly.
To make sure the installation spot is suitably ventilated, if multiple SAJ hybrid solar inveers are
Figure 3.4
Drill holes dimensions of H2 inveer
50CM
50CM
50CM
50CM
30CM
11 12
Figure3.3 Dimensions of
1.Mark the Positions of the Drill Holes of the Rear Panel
are installed same area.
Installation Environment Requirements
 •The installation environment must be free of inammable or explosive materials.
 • Install the device away from heat source.
 • Do not install the device at a place where the temperature changes extremely.
 •Keep the device away from children.
•Do not install the device at daily working or living arears, including but not limited to the following areas:
bedroom, lounge, living room, study, toilet, bathroom, theater and attic.
•When installing the device at the garage, please keep it away from drive way.
•Keep the device from water sources such as taps, sewer pipes and sprinklers to prevent water seepage.
•The product is to be installed in a high trac area where the fault is likely to be seen.
Note: When installing outdoors, the height of the device from the ground should be considered to
prevent the device from soaking in water. The specic height is determined by the site environment.

HYBRID SOLAR INVERTER INSTRUCTION MANUAL
3.Secure the Screws and the Rear Panel
The panels should be secured onto the mounting position by screws as shown in Figure 3.5.
4.Mount the Inveer
Carefully mount the inveer into the rear panel as shown in Figure 3.6. Make sure that the rear
pa of the equipment is closely mounted into the rear panel.
Figure3.5
Mount the Rear Panel of H2 inveerr
Figure 3.6
Mount H2 inveer
13 14

4.
ELECTRICAL
connection
4.1
Safety Instruction
for Hot-line Job
4.2
Specications for
HYBRID SOLAR INVERTER INSTRUCTION MANUAL
Electrical Inteace
DANGER
· Dangerous to life due to potential re or electricity shock.
· When power-on, the equipment should in conformity with national rules and regulations.
· The direct connection between the inveer and high voltage power systems must be operated by qualied technicians
in accordance with local and national power grid standards and regulations.
· The PV arrays will produce lethal high voltage when exposed to sunlight.
WARNING
· Any improper operation during cable connection can cause device damage or personal inju
Electrical connection must only be operated on by professional technicians. Please keep in
mind that the inveer is a bi-power supply equipment. Before connection, necessa protective
equipment must be employed by technicians including insulating gloves, insulating shoes and
safety helmet.
Figure 4.1
Electrical Inteace of H2 inveer
1615

4.3
Ground Connection
4.4
AC Grid Wire and
Backup Output
HYBRID SOLAR INVERTER INSTRUCTION MANUAL
Connection
Table4.1
Specications for Inteace
Figure 4.2
Inveer ground protection
Table 4.2
Recommended
Specications of AC Cables
Figure4.3
Thread the cables
Figure4.4
Procedure:
Connect the Cables
1.Open the waterproof cover, feed the AC cable through the AC waterproof hole.
2.Fix the cables according to conductor marks of L, N and PE.
Code
ADC Switch
DC Input
DC Input
Batte Input
BMS/ CAN/ EMS/ METER/ DRM
CT/ Inveer Parallel po
4G/ Wi-Fi
Backup
Grid
Ground Connection
B
C
D
E
F
G
H
I
J
Name
1817
If the grid-connection distance is too far, please amplify diameter selection of the
AC cable as per the actual condition.
8~14 8
Additional grounding cable cross-sectional area (mm²): 8
Remove the screw on the ground terminal and secure the cable with a
screwdriver.

4.5
HYBRID SOLAR INVERTER INSTRUCTION MANUAL
PV Connection
4.During o grid operation time, PE line at the BACK-UP end will remain to be connected with
the PE line at the power grid end inside the inveer. (Only applicable to market in Australia)
3.Secure all pas of the grid and backup connector tightly.
Figure 4.5
Screw the Connector
Table 4.3
Recommended
Specications of DC Cables
Figure4.7
Positive and negative connectors
Figure4.8
Connecting Cables
DC connector is made up of the positive connector and the negative con-
nector
Connecting Procedures:
1. Use specied strip tool to strip the insulated enclosure of the positive
and negative cables with appropriate length (8-10mm).
·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 negative connector
to the negative side of the solar side. Be sure to connect them in right position.
20
19
4.4.1
Multiple Inveer
Combinations
Inveer
1 Phase
Test Circuit
Connection
3 Phase
Inveer
1 Phase
Inveer
1 Phase
The inveer should not be installed in multiple phase combinations.
1. Insulated Enclosure 2. Lock Screw3. Positive/ Negative Connector

HYBRID SOLAR INVERTER INSTRUCTION MANUAL
4.6
Batte
Connection
1. Connection Po
2. Feed the positive and negative cables into corresponding lock screws and crimp them tightly
with a wire crimper. Make sure that the withdrawal force of the pressed cable is larger than
400N.
3. Plug in the pressed positive and negative cables into relevant insulated enclosure, a “click”
sound should be heard when the contact cable assembly is seated correctly.
4. Fasten the lock screws on positive and negative connectors into corresponding insulated
enclosure and make them tight.
5. Connect the positive and negative connectors into positive and negative DC input terminals
of the inveer, a “click” sound should be heard when the contact cable assembly is seated cor -
rectly.
Figure4.9
Connect to the Inveer
Table 4.4
Recommended
Specications of DC Cables
Figure 4.10
Open the waterproof cover
If lithium batte is connected, it is not required to install a breaker be -
tween batte and inveer.
Procedure：
1.Open the waterproof cover, then feed the batte cable through the AC waterproof
hole.
· Before inse the connector into DC input terminal of the inveer, please make sure that the DC switch of the inveer is OFF.
·Please use the original H4 terminal to install.
22
21

HYBRID SOLAR INVERTER INSTRUCTION MANUAL
4.7
Eah Fault Alarm
4.8
Communication
Figure 4.11
Connection
4.8.1 Serial Po Denition
Batte Terminal
Figure 4.12
Connect the Batte Cable
Figure 4.13
9-Pin serial po
This inveer complies with IEC 62109-2 clause 13.9 for eah fault alarm
monitoring. If an Eah Fault Alarm occurs, the second LED indicator will
be lit up until the error being solved and inveer functioning properly.
H2 series hybrid inveer has a RS232 communication po integrated.
Table 4.5 9-Pin
USB inteace with Wi-Fi module, please reference Wi-Fi user manual.
serial po introduction
3.Fix the batte cable on the batte copper terminal by positive and
negative in order.
Note：Batte temperature can be detected by temperature sensor that
integrated in the batte module, and the temperature data can be
2.• Strip o the insulation skin of DC cable, the core is exposed to 15mm,
reviewed on eSAJ App.
• Open the spring using a 3mm wide bladed screwdriver
• Carefully inse the stripped wire all the way in
• The wire ends have to be visible in the spring
• Close the spring. Make sure that the spring is snapped in
• Inse the cable into the sleeve
• Tighten the cable gland
2423

HYBRID SOLAR INVERTER INSTRUCTION MANUAL
Note: The hybrid inveer is with expo limitation function, which can be realized by connecting
SAJ recommended sma meter to the hybrid energy storage system. Users can contact SAJ for
fuher details for the sma meters. If users have no intention to set the expo limitation func -
tion, please ignore chapter 4.8.4.
If users have purchased the sma meter that recommended by SAJ, before setting the expo
limitation function, users shall connect the meter to the system as below:
4.9
4.8.2 RJ45 Pin Po Denition
System Connection
4.8.4
Sma Meter Connection
4.8.3
Figure 4.14
Inse the communication cable
9-Pin serial po
Figure 4.15
Connection of communication cable
Figure 4.16
Sma meter wiring
Open the waterproof cover, pass the crimped communication cable
through waterproof cover, inse cable to the corresponding communica -
tion po, then tighten waterproof cover with screws.
2625
The system connection in Australia and New Zealand is as below, the neutral cable of AC
and backup side must be connected together for the safety reason.
Note: DO NOT connect the PE terminal of BACKUP side.
/BMS
EMS/METER
PORT1PORT0

Caution：For safety operation and regulation compliance, it is requested to install
4.10
a breaker (63A) between grid and inveer.
Connection
Diagram
4.11
External AC Circuit
Breaker and Residual
Figure 4.17
Current Device
H2 Connection diagram
HYBRID SOLAR INVERTER INSTRUCTION MANUAL
Please install a circuit breaker to ensure the inveer is able to disconnect
from grid safely. The inveer is integrated with a RCMU, however, an
external RCD is needed to protect the system from tripping, either type A
or type B RCD are compatible with the inveer.
The integrated leakage current detector of inveer is able to detect the
real time external current leakage. When a leakage current detected
exceeds the limitation, the inveer will be disconnected from grid quickly,
if an external residual current device is connected, the action current
should be 30mA or higher.
28
Note：The backup PE line and eahing bar must be grounded properly. Otherwise, backup
function may be inactive during blackout.
Battery
On-grid Load
AC Breaker
1 2
562425
3 4
A+
B-
L N
IA White( )
IA Blue( )
GridPower Meter
Back-up Load
Rs485
Mete
AC Breaker
BMS
BAT
L
N
PE
L
N
PE
AC
BACKUP
GRID
RCD
Normal
Loads
RCD Backup
Loads
Smart
meter
CT L
N
PE
L
N
PE
L
N
PE
Distribution box
H2 Inverter
BMS
PV
BAT H2 Inverter
L
N
PE
L
N
PE
AC
BACKUP
GRID
RCD
Normal
Loads
RCD Backup
Loads
Smart
meter
CT L
N
PE
L
N
PE
L
N
PE
Distribution box
BMS
PV
The system connection for grid system without special requirements is as below.

5.
DEBUGGING
Figure 5.1
LED indicators 3029
HYBRID SOLAR INVERTER INSTRUCTION MANUAL
5.1 Sta Up and Shut Down Inveer
5.1.1 Start Up
5.1.2 Shut Down
(1)Connect the AC circuit breaker
(2)Connect the DC circuit breaker between inveer and batte(if applicable)
(3)Turn ON the batte(if applicable)
(4)Turn ON the DC switch on the inveer
(5)Install the communication module into the inveer
(6)Setup the initial setting for inveer on eSAJ Home
(7)Obsee the LED indicators on the inveer to ensure the inveer is running properly
Automatically shut down, when the solar light intensity is not strong enough during sunrise
andsunset or the output voltage of photovoltaic system is less than the minimum input power
of inveer, inveer will shut down automatically.
5.2 Introduction of
LED Indicator
Shut down manually, disconnect AC side circuit breaker rst, if multiple inveers are connected,
disconnect the minor circuit breaker prior to disconnection of main circuit breaker. Disconnect
the DC switch after inveer has repoed grid connection lost alarm.

HYBRID SOLAR INVERTER INSTRUCTION MANUAL
Log in to eSAJ Home, if you do not have an account, please register rst.
Go to the “Tool” inteace and select “Remote Conguration”
Click on “Bluetooth” and activate the Bluetooth function on your phone, then click on “Next”
Choose your inveer according to your inveer SN’s tail numbers
Click on the inveer to enter inveer setting
Select the corresponding count and grid code for initial setting, please contact your local grid
operator for which grid compliance to select
31 32
eSAJ Home
5.4
eSAJ APP
Connection
5.4.1 Account Login
5.3

3433
5.4.2 Local connection
Select “Local Connection”
Enter password “123456”
Click on "Bluetooth" and activate the Bluetooth function on your phone, then click on "Next"
Choose your inveer according to your inveer SN's tail numbers
Click on the inveer to enter inveer setting
Select the corresponding count and grid code for
Open eSAJ APP and click on the dot icon on the top righ corner
7
5.4.3 Inveer Setting Review
After commissioning, the device info including device basic info, running info and event info
can be viewed. Count and grid code can be viewed from initial setting.