SH3.0 - 3.6 - 4.0 - 5.0 - 6.0RS User Manual

User Manual
1-phase Hybrid Inverter

SH3.0RS/SH3.6RS/SH4.0RS/SH5.0RS/SH6.0RS
SH3.0RS/
SH3.6RS/SH4.0RS/SH5.0RS/
SH6.0RS1-phase Hybrid
InverterUser ManualSH3.0-6.0RS-
UEN-Ver13-202204
SH3.0-6.0RS-UEN-Ver13-202204
All Rights Reserved
All Rights Reserved

No part of this document can be reproduced in any form or by any means without the prior
written permission of Sungrow Power Supply Co., Ltd (hereinafter "SUNGROW").
Trademarks
and other Sungrow trademarks used in this manual are owned by
SUNGROW.
All other trademarks or registered trademarks mentioned in this manual are owned by their
respective owners.
Software Licenses
• It is prohibited to use data contained in firmware or software developed by SUNGROW,

in part or in full, for commercial purposes by any means.
• It is prohibited to perform reverse engineering, cracking, or any other operations that

compromise the original program design of the software developed by SUNGROW.
I
About This Manual
The manual mainly contains the product information, as well as guidelines for installation,
operation, and maintenance. The manual does not include complete information about the
photovoltaic (PV) system. Readers can get additional information at www.sungrowpower.
com or on the webpage of the respective component manufacturer.
Validity
This manual is valid for the following model of low-power grid-connected PV string inverters:
• SH3.0RS
• SH3.6RS
• SH4.0RS
• SH5.0RS
• SH6.0RS
It will be referred to as "inverter" hereinafter unless otherwise specified.

Target Group
This manual is intended for professional technicians who are responsible for installation, op-
eration, and maintenance of inverters, and users who need to check inverter parameters.
The inverter must only be installed by professional technicians. The professional technician
is required to meet the following requirements:
• Know electronic, electrical wiring and mechanical expertise, and be familiar with electri-
cal and mechanical schematics.
• Have received professional training related to the installation and commissioning of elec-
trical equipment.
• Be able to quickly respond to hazards or emergencies that occur during installation and
commissioning.
• Be familiar with local standards and relevant safety regulations of electrical systems.
• Read this manual thoroughly and understand the safety instructions related to
operations.
How to Use This Manual
Please read this manual carefully before using the product and keep it properly at a place
for easy access.
All contents, pictures, marks, and symbols in this manual are owned by SUNGROW. No part
of this document may be reprinted by the non-internal staff of SUNGROW without written
authorization.
Contents of this manual may be periodically updated or revised, and the actual product pur-
chased shall prevail. Users can obtain the latest manual from support.sungrowpower.com
or sales channels.
II
Symbols
This manual contains important safety instructions, which are highlighted with the following
symbols, to ensure personal and property safety during usage, or to help optimize the prod-
uct performance in an efficient way.
Please carefully understand the meaning of these warning symbols to better use the manual.
Indicates high-risk potential hazards that, if not avoided, may lead to death or seri-
ous injury.
Indicates moderate-risk potential hazards that, if not avoided, may lead to death or
serious injury.
Indicates low-risk potential hazards that, if not avoided, may lead to minor or mod-
erate injury.
Indicates potential risks that, if not avoided, may lead to device malfunctions or fi-
nancial losses.
“NOTE” indicates additional information, emphasized contents or tips that may be

helpful, e.g., to help you solve problems or save time.
III
Contents
All Rights Reserved .....................................................................................................I
About This Manual......................................................................................................II
1 Safety Instructions ............................................................................................1
1.1 Unpacking and Inspection ...............................................................................1
1.2 Installation Safety ...........................................................................................1
1.3 Electrical Connection Safety............................................................................2
1.4 Operation Safety ............................................................................................4
1.5 Maintenance Safety ........................................................................................4
1.6 Disposal Safety ..............................................................................................5
2 Product Description ..........................................................................................6
2.1 System Introduction ........................................................................................6
2.2 Product Introduction........................................................................................7
2.3 Symbols on the Product ..................................................................................8
2.4 LED Panel .....................................................................................................9
2.5 DC Switch....................................................................................................10
2.6 PV Energy Storage System (PV ESS) ............................................................ 11
2.6.1 PV Energy Storage System (PV ESS)................................................... 11
2.6.2 Declaration For Back-Up Function ........................................................12
2.7 Retrofitting the Existing PV System ................................................................13
3 Function Description ......................................................................................15
3.1 Safety Function ............................................................................................15
3.1.1 Protection...........................................................................................15
3.1.2 Earth Fault Alarm ................................................................................15
3.2 Energy Conversion and Management ............................................................15
3.2.1 Power Derating ...................................................................................15
3.2.2 DRM (“AU”/“NZ”).................................................................................16
3.2.3 Regular Operational Voltage Range .....................................................16
3.2.4 Regular Operational Frequency Range .................................................16
3.2.5 Reactive Power Regulation..................................................................17
3.3 Battery Management ....................................................................................17
3.3.1 Charge Management...........................................................................18
V
3.3.2 Discharge Management.......................................................................19
3.4 PID Recovery Function .................................................................................20
3.5 Communication and Configuration .................................................................21
3.6 Import Power Limit Function ..........................................................................21
4 Unpacking and Storage .................................................................................22
4.1 Unpacking and Inspection .............................................................................22
4.2 Inverter Storage ...........................................................................................22
5 Mechanical Mounting .....................................................................................24
5.1 Safety during Mounting .................................................................................24
5.2 Location Requirements .................................................................................24
5.2.1 Environment Requirements..................................................................25
5.2.2 Carrier Requirements ..........................................................................25
5.2.3 Angle Requirements............................................................................25
5.2.4 Clearance Requirements .....................................................................26
5.3 Installation Tools...........................................................................................27
5.4 Moving the Inverter .......................................................................................28
5.5 Installing the Inverter.....................................................................................29
6 Electrical Connection .....................................................................................31
6.1 Safety Instructions ........................................................................................31
6.2 Terminal Description .....................................................................................32
6.3 Electrical Connection Overview .....................................................................34
6.4 Backup Wiring Diagram ................................................................................35
6.5 External Grounding Connection .....................................................................38
6.5.1 External Grounding Requirements........................................................38
6.5.2 Connection Procedure.........................................................................38
6.6 AC Cable Connection ...................................................................................39
6.6.1 AC Side Requirements ........................................................................39
6.6.2 Connecting the AC Cable ....................................................................40
6.7 DC Cable Connection ...................................................................................43
6.7.1 PV Input Configuration ........................................................................44
6.7.2 Assembling the PV Connectors ............................................................45
6.7.3 Installing the PV Connector..................................................................46
6.8 Emergency Load Connection (Backup) ..........................................................47
6.9 Battery Connection .......................................................................................50
6.9.1 Connecting the Power Cable................................................................51
6.9.2 Connecting the CAN Cable ..................................................................53
VI
6.9.3 Connecting the Enable Cable...............................................................53
6.10 WiNet-S Connection ...................................................................................53
6.10.1 Ethernet Communication ...................................................................54
6.10.2 WLAN Communication ......................................................................56
6.11 Meter Connection .......................................................................................56
6.12 RS485 Connection......................................................................................59
6.13 DRM Connection ........................................................................................59
7 Commissioning ...............................................................................................63
7.1 Inspection before Commissioning ..................................................................63
7.2 Powering on the System ...............................................................................63
7.3 App Preparation ...........................................................................................64
7.4 Creating a Plant............................................................................................64
7.5 Initializing the Device ....................................................................................67
7.6 Configuring the Plant ....................................................................................70
8 iSolarCloud App ..............................................................................................73
8.1 Brief Introduction ..........................................................................................73
8.2 Installing the App ..........................................................................................73
8.3 Account Registration.....................................................................................74
8.4 Login ...........................................................................................................75
8.4.1 Requirements .....................................................................................75
8.4.2 Login Procedure .................................................................................75
8.5 Initial Settings...............................................................................................77
8.5.1 Feed-in Limitation ...............................................................................77
8.5.2 Backup Mode......................................................................................78
8.6 Function Overview........................................................................................78
8.7 Home ..........................................................................................................78
8.8 Run Information............................................................................................79
8.9 Records .......................................................................................................80
8.9.1 Chart..................................................................................................80
8.9.2 Fault Alarm Record .............................................................................81
8.9.3 Event Record......................................................................................82
8.10 More ..........................................................................................................82
8.10.1 System Parameters...........................................................................83
8.10.2 Running Time ...................................................................................84
8.10.3 Regular Parameters ..........................................................................84
8.10.4 Off-grid Parameters ...........................................................................85
VII
8.10.5 Active Power Regulation ....................................................................85
8.10.6 Reactive Power Regulation ................................................................86
8.10.7 Battery Discharge Time .....................................................................89
8.10.8 Battery Forced Charge Time ..............................................................89
8.10.9 Communication Parameters...............................................................90
8.10.10 Firmware Update.............................................................................91
8.10.11 Grounding Detection ........................................................................92
8.10.12 Frequency Shift Power Control .........................................................92
8.10.13 Import Power Limit...........................................................................93
9 System Decommissioning ............................................................................94
9.1 Decommissioning the Inverter .......................................................................94
9.1.1 Disconnecting the Inverter ...................................................................94
9.1.2 Dismantling the Inverter.......................................................................94
9.1.3 Disposal of the Inverter........................................................................95
9.2 Decommissioning the Battery ........................................................................95
10 Troubleshooting and Maintenance ............................................................96
10.1 Troubleshooting..........................................................................................96
10.2 Maintenance ............................................................................................ 104
10.2.1 Maintenance Notices ....................................................................... 104
10.2.2 Routine Maintenance....................................................................... 105
11 Appendix ...................................................................................................... 106
11.1 Technical Data .......................................................................................... 106
11.2 Quality Assurance..................................................................................... 111
11.3 Contact Information................................................................................... 111
VIII
1 Safety Instructions
When installing, commissioning, operating, and maintaining the product, strictly observe the
labels on the product and the safety requirements in the manual. Incorrect operation or work
may cause:
• Injury or death to the operator or a third party.
• Damage to the product and other properties.
• The safety instructions in this manual are only supplements and cannot cover
all the precautions that should be followed. Perform operations considering ac-
tual onsite conditions.
• SUNGROW shall not be held liable for any damage caused by violation of gen-
eral safety operation requirements, general safety standards, or any safety in-
struction in this manual.
• When installing, operating, and maintaining the product, comply with local laws
and regulations. The safety precautions in this manual are only supplements
to local laws and regulations.
1.1 Unpacking and Inspection
Check all safety signs, warning labels and nameplates on devices.

Ensure that the safety signs, warning labels and nameplates must be clearly visible
and cannot be removed or covered before the device is decommissioned.
After receiving the product, check whether the appearance and structural parts of
the device are damaged, and check whether the packing list is consistent with the
actual ordered product. If there are problems with the above inspection items, do
not install the device and contact SUNGROW in time.
1.2 Installation Safety
Make sure there is no electrical connection before installation.

Before drilling, avoid the water and electricity wiring in the wall.
1
1 Safety Instructions User Manual
Improper installation may cause personal injury!
• If the product supports hoisting transport and is hoisted by hoisting tools, no

one is allowed to stay under the product.
• When moving the product, be aware of the product weight and keep the balance
to prevent it from tilting or falling.
Before operating the product, must check and ensure that tools to be used have
been maintained regularly.
1.3 Electrical Connection Safety
Before electrical connections, please make sure that the inverter is not damaged,
otherwise it may cause danger!
Before electrical connections, please make sure that the inverter switch and all
switches connected to the inverter are set to "OFF", otherwise electric shock may
occur!
The PV string will generate lethal high voltage when exposed to sunlight.
• Operators must wear proper personal protective equipment during electrical

connections.
• Must ensure that cables are voltage-free with a measuring instrument before
touching DC cables.
• Respect all safety instructions listed in relevant documents about PV strings.
Danger to life due to a high voltage inside the inverter!
• Be sure to use special insulation tools during cable connections.
• Note and observe the warning labels on the product, and perform operations
strictly following the safety instructions.
• Respect all safety instructions listed in this manual and other pertinent
documents.
2
User Manual 1 Safety Instructions
Batteries deliver electric power, resulting in burns or a fire hazard when they are
short circuited, or wrongly installed.
Lethal voltages are present at the battery terminals and cables connecting to the
inverter. Severe injuries or death may occur if the cables and terminals in the inver-
ter are touched.
Damage to the product caused by incorrect wiring is not covered by the warranty.
• Electrical connection must be performed by professionals.
• All cables used in the PV generation system must be firmly attached, properly
insulated, and adequately dimensioned.
Check the positive and negative polarity of the PV strings, and connect the PV con-
nectors to corresponding terminals only after ensuring polarity correctness.
During the installation and operation of the inverter, please ensure that the positive
or negative poles of PV strings do not short-circuit to the ground. Otherwise, an
AC or DC short-circuit may occur, resulting in equipment damage. The damage
caused by this is not covered by the warranty.
Comply with the safety instructions related to PV strings and the regulations re-
lated to the local grid.
3
1 Safety Instructions User Manual
1.4 Operation Safety
• When the inverter is running, do not touch its enclosure.
• When the inverter is running, it is strictly forbidden to plug and unplug any con-
nector on the inverter.
• When the inverter is running, do not touch any wiring terminal of the inverter.
Otherwise, electric shock may occur.
• When the inverter is running, do not disassemble any parts of the inverter. Oth-
erwise, electric shock may occur.
• When the inverter is running, it is strictly forbidden to touch any hot parts of the
inverter (such as the heat sink). Otherwise, it may cause burns.
• If the inverter is equipped with a DC switch, do not operate it when the inverter
is running. Otherwise, device damage or personal injury may occur.
1.5 Maintenance Safety
Risk of inverter damage or personal injury due to incorrect service!
• Before any service work, first disconnect the grid-side AC circuit breaker and
check the inverter status. If the inverter indicator is off, please wait until night to
disconnect the DC switch. If the inverter indicator is on, directly disconnect the
DC switch.
• After the inverter is powered off for, measure the voltage and current with pro-
fessional instrument. Only when there is no voltage nor current can operators
who wear protective equipment operate and maintain the inverter.
• Even if the inverter is shut down, it may still be hot and cause burns. Wear pro-
tective gloves before operating the inverter after it cools down.
Touching the power grid or the contact points and terminals on the inverter con-
nected to the power grid may lead to electric shock!
• The power grid side may generate voltage. Always use a standard voltmeter to
ensure that there is no voltage before touching.
To prevent misuse or accidents caused by unrelated personnel: Post prominent

warning signs or demarcate safety warning areas around the inverter to prevent
accidents caused by misuse.
4
User Manual 1 Safety Instructions
To avoid the risk of electric shock, do not perform any other maintenance opera-
tions beyond this manual. If necessary, contact SUNGROW for maintenance. Oth-
erwise, the losses caused is not covered by the warranty.
1.6 Disposal Safety
Please scrap the product in accordance with relevant local regulations and stand-
ards to avoid property losses or casualties.
5
2 Product Description
2.1 System Introduction
The inverter is a transformerless 1-phase hybrid inverter. As an integral component in the

power system, the inverter is designed to convert the direct current power generated from
the PV modules or batteries into grid-compatible AC current and feeds the AC current to the
utility grid.
The 1-phase hybrid inverters are applicable to both on-grid and off-grid PV systems. With
the integrated Energy Management System (EMS), they can control and optimize the en-
ergy flow so as to increase the self-consumption of the system.
• The inverter must only be operated with PV strings with class II protection in ac-
cordance with IEC 61730, application class A. It is not allowed for the positive
pole or the negative pole of the PV strings to be grounded. This can cause the
inverter to be destroyed.
• Damages to the product due to a faulty or damaged PV installation are not cov-
ered by warranty.
• Any use other than the one described in this document is not permitted.
• During the installation and operation of the inverter, please ensure that the posi-
tive or negative polarities of PV strings and those of batteries do not short-cir-
cuit to the ground. Otherwise, an AC or DC short-circuit may occur, resulting in
equipment damage. The damage caused by this is not covered by the warranty.
• Do not short-circuit the Backup port during operation. Otherwise, the inverter
or power distribution system will be seriously damaged. The loss is not covered
by the SUNGROW warranty.
• Do not connect any local load between the inverter and the AC circuit breaker.
• For the TT utility grid, the N line voltage to ground must be 30 V or less.
• The utility grid must be a TN system for the off-grid application.
• The system is not suitable for supplying life-sustaining medical devices. It can-
not guarantee backup power in all circumstances.
• The inverter applies only to the scenarios described in this manual.
6
User Manual 2 Product Description
2.2 Product Introduction

Model Description
The model description is as follows (take SH5.0RS as an example):
Appearance
The following figure shows the appearance of the inverter. The image shown here is for
reference only. The actual product received may differ.
figure 2-1 Inverter Appearance
No. Name Description

1 DC switch To safely disconnect the DC circuit whenever necessary.
Information about COM2 pin definition, supported DRM
2 Label
modes, etc.
3 Hanger To hang the inverter on the wall-mounting bracket.
The LED screen indicates the running information and the
4 LED pannel LED indicator indicates the current working state of the
inverter.
7
2 Product Description User Manual

To clearly identify the product, including device model, S/N,
5 Nameplate important specifications, marks of certification institutions,
etc.
Electrical connec- PV terminals, battery terminal, AC terminal, additional
6
tion area grounding terminal and communication terminals.
Dimensions
The following figure shows the dimensions of the inverter.
figure 2-2 Dimensions of the Inverter
Inverter Model W (mm) H (mm) D (mm)
SH3.0RS / SH3.6RS / SH4.0RS / SH5.0RS

490 340 170
/ SH6.0RS
2.3 Symbols on the Product
Symbol Explanation
Parameters on the PV side.
Parameters on the battery side.
Parameters on the AC on-grid side.
Parameters on the AC backup side.
Regulatory compliance mark.
TÜV mark of conformity.
CE mark of conformity.
8
Symbol Explanation
UKCA mark of conformity.
The inverter does not have a transformer.
Do not dispose of the inverter together with household waste.
Disconnect the inverter from all the external power sources be-
fore maintenance!
Read the user manual before maintenance!
Burn danger due to the hot surface that may exceed 60℃.
Danger to life due to high voltages!

Do not touch live parts for 10 minutes after disconnection from
the power sources.
Only qualified personnel can open and maintain the inverter.
Additional grounding point.
* The table shown here is for reference only. The actual product received may differ.
2.4 LED Panel
The LED panel with a display screen and an indicator is on the front of the inverter.
figure 2-3 LED Panel
(a) Normal state (b) Error state

1 E-day Today’s energy yield
2 Pac Real-time AC output power
3 SOC Battery SOC (State of Charge)
9

To indicate the working state of the inverter.
LED
4 Touch it to switch the information in normal state or view multiple
indicator
error codes in error state.
5 Error code The error code in the figure is just an example.
• In normal state, the E-day, Pac and SOC information will be displayed alternately. Also
you can touch the LED indicator to switch the information.
• In error state, touch the LED indicator to view multiple error codes.
• If there is no operation for 5 minutes, the display screen will be off. Touch the LED indica-
tor to activate it.
table 2-1 State description of the LED indicator
LED color State Definition

On The inverter is operating normally.
The inverter is at standby or startup state (not

Flashing
feeding power into the grid).
Blue
On A system fault has occured.
Red
Off Both the AC and DC sides are powered down.
Gray
Voltage may still be present in AC side circuits after the indicator is off. Pay atten-
tion to the electricity safety during operating.
2.5 DC Switch
The DC switch is used to safely disconnect the DC circuit whenever necessary.

The inverter operates automatically when input and output requirements are met. Rotate the
DC switch to the “OFF” position to stop the inverter when a fault occurs or when you need to
stop the inverter.
10
Turn the DC switch to the “ON” position before restarting the inverter.
2.6 PV Energy Storage System (PV ESS)

2.6.1 PV Energy Storage System (PV ESS)
The following figure shows inverter application in a PV energy storage system.
figure 2-4 PV Energy Storage System
Item Description Note

Compatible with monocrystalline silicon, polycrystalline sili-
A PV strings
con, and thin-film modules without grounding.
B Inverter SH3.0RS, SH3.6RS, SH4.0RS, SH5.0RS, SH6.0RS.
C Metering device Meter cupboard with power distribution system.
D Utility grid TT，TN-C，TN-S, TN-C-S.
Common loads, which will be lack of power when grid is
E Loads
blackout.
Protected house Loads, connected to inverter backup port, which need unin-
F
loads terrupted power supply.
G Battery (optional) A Li-ion battery.
The following figure shows the common grid configurations.
11
2.6.2 Declaration For Back-Up Function
The following statement involves SUNGROW general policies about the hybrid inverters de-
scribed in this document.
1 For hybrid inverters, the electrical installation typically includes connection of the inverter
to both PV modules and batteries. If there is no available power from batteries or PV
modules in backup mode, the backup power supply will be automatically terminated.
SUNGROW shall hold no liability for any consequences arising from failing to observe
this instruction.
2 Normally, the Back-Up switching time is less than 10 ms. However, some external fac-
tors may cause the system to fail on Back-Up mode. Therefore, the users must be aware
of conditions and follow the instructions as below:
• Do not connect loads that are dependent on a stable energy supply for a reliable
operation.
• Do not connect the loads whose total capacity is greater than the maximum Back-Up
capacity.
• Do not connect the loads that may cause very high start-up current surges, such as air-
conditioner, high-power pump, vacuum cleaner, and hair drier.
• Due to the condition of the battery itself, battery current might be limited by some factors,
including but not limited to the temperature and weather.
Declaration For Back-Up Overload Protection
The inverter will restart in case of overload protection. The time required for restarting will in-
crease (10 min at most) if overload protection repeats. Try to reduce Back-Up load power
within maximum limitation or remove the loads which may cause very high start-up current
surges.
12
2.7 Retrofitting the Existing PV System
The hybrid inverter is compatible with any single-phase PV grid-connected inverters. An ex-
isting PV system can be retrofitted to be a PV ESS with the addition of the hybrid inverter.
The power generation from the existing PV inverter will be firstly provided to the loads and
then charge the battery. With the energy management function of the hybrid inverter, the
self-consumption of the new system will be greatly improved.
Retrofit the Existing PV Inverter(s) to the Hybrid Inverter On-grid Port
figure 2-5 Retrofit the Existing PV Inverter(s) to the Hybrid Inverter On-grid Port
The AC terminal of the PV inverter and the GRID terminal of the hybrid inverter are com-
bined to the grid.
13
Retrofit the Existing PV Inverter(s) to the Hybrid Inverter Off-grid Port
figure 2-6 Retrofit the Existing PV Inverter(s) to the Hybrid Inverter Off-grid Port
The off-grid port retrofits the existing PV system in order to maximize the use of PV energy
by allowing the PV inverter to work even when off-grid.
The AC terminal of the PV inverter and the BACK-UP terminal of the hybrid inverter are com-
bined to the backup loads.
The PV inverter power cannot exceed the nominal power of the hybrid inverter .
• In zero-export scenario, the hybrid inverter can only ensure no power exported
to grid itself but does not ensure zero-export for the PV inverter. Please contact
the PV inverter manufacturer for its zero-export solution.
• PV modules for hybrid inverter are optional.
14
3 Function Description
3.1 Safety Function

3.1.1 Protection
Several protective functions are integrated in the inverter, including short circuit protection,
grounding insulation resistance surveillance, residual current protection, anti-islanding pro-
tection, DC overvoltage / over-current protection, etc.
3.1.2 Earth Fault Alarm
The device gives an alarm if there is a grounding fault. If the AC side is poorly grounded or
not grounded, the buzzer rings, and the LED indicator turns red.
3.2 Energy Conversion and Management
The inverter converts the DC power from the PV array or the battery to the AC power, in con-
formity with the grid requirements. It also transmits the DC power from the PV panel to the
battery.
With the bidirectional converter integrated inside, the inverter can charge or discharge the
battery.
Multiple string MPP trackers are used to maximize the power from PV strings with different
orientations, tilts, or module structures.
3.2.1 Power Derating
Power derating is a way to protect the inverter from overload or potential faults. In addition,
the derating function can also be activated following the requirements of the utility grid. Sit-
uations requiring inverter power derating are:
• over-temperature (including ambient temperature and module temperature)
• high input voltage
• grid under-voltage
• grid over-voltage
• grid over-frequency
• power factor (when values out of the rated values)
15
3 Function Description User Manual
3.2.2 DRM (“AU”/“NZ”)
The inverter provides a terminal block for connecting to a demand response enabling device
(DRED). The DRED asserts demand response modes (DRMs). The inverter detects and ini-
tiates a response to all supported demand response commands within 2s.
The following table lists the DRMs supported by the inverter.
table 3-1 Demand Response Modes (DRMs)
Mode Explanation
DRM0 The inverter is in the state of “Turn off”.
DRM1 The import power from the grid is 0.
DRM2 The import power from the grid is no more than 50 % of the rated power.
DRM3 The import power from the grid is no more than 75 % of the rated power.
The import power from the grid is 100 % of the rated power, but subject to
DRM4
the constraints from other active DRMs.
DRM5 The feed-in power to the grid is 0.
DRM6 The feed-in power to the grid is no more than 50 % of the rated power.
DRM7 The feed-in power to the grid is no more than 75 % of the rated power.
The feed-in power to the grid is 100 % of the rated power, but subject to
DRM8
the constraints from other active DRMs.
The DRED may assert more than one DRM at a time. The following shows the priority order
in response to multiple DRMs.
Multiple Modes Priority Order

DRM1…DRM4 DRM1 > DRM2 > DRM3 > DRM4
DRM5…DRM8 DRM5 > DRM6 > DRM7 > DRM8
3.2.3 Regular Operational Voltage Range
The inverters can operate within the allowable voltage range for at least the specified obser-
vation time. The setting of the conditions depends on whether the connection is due to a nor-
mal operational start-up or an automatic reconnection after tripping of the interface
protection.
When the voltage level is out of the operational levels, the inverter will disconnect from the
grid within the protection time. If a disturbance lasts less than the required protection time,
the inverter can reconnect to the grid once the voltage level goes back to normal levels after
the disturbance.
3.2.4 Regular Operational Frequency Range
The inverter can operate within its frequency range for at least the specified observation
time. The setting of conditions depends on whether the connection is due to a normal opera-
tional start-up or an automatic reconnection after tripping of the interface protection.
16
User Manual 3 Function Description
When the frequency level is outside the operational levels, the inverter will disconnect from
the grid. If a disturbance lasts less than the required protection time, the inverter can recon-
nect to the grid once the frequency level goes back to normal levels after the disturbance.
3.2.5 Reactive Power Regulation
The inverter is capable of operating in reactive power regulation modes for the purpose of
providing support to the grid. The reactive power regulation mode can be set via the iSolar-
Cloud App.
3.3 Battery Management
Li-ion battery from SUNGROW and BYD are compatible with the PV ESS，further battery
models will be made compatible in the furture.
The currently supported battery brands and models are shown in the following table.
Brand Model Firmware Version

SUN-
SBR096/128/160/192 ≥ SBRBCU-S_22011.01.05
GROW
Battery-Box Premium HVS 5.1, 7.7, Battery management system (BMS)
10.2 version ≥ 3.16
BYD
Battery-Box Premium HVM 8.3, 11.0, Battery management unit (BMU) ver-
13.8, 16.6, 19.3, 22.1 sion ≥ 3.7
The table is continually updated. If the battery model is not in the table, consult
SUNGROW if it is supported.
To maximize the battery life, the inverter will perform battery charge, discharge, and battery
maintenance based on the battery status communicated by the BMS.
The recommended parameters listed in this section may be updated or revised due
to product development. Please refer to the manual supplied by the battery manu-
facturer for the latest information.
State Definition
In order to avoid overcharging or deep discharging of the battery, three battery statuses ac-
cording to different voltage ranges has been defined, as shown in the following table.
17
table 3-2 Battery Status Definition
Port Voltage / SOC

Type
Empty Normal Full
SUNGROW
5 %...100 %
(SBR096/128/160/ SOC < 5 % SOC = 100 %
(by default)
192)
BYD (Battery-Box
5 %...100 %)
Premium HVM / SOC < 5 % SOC = 100 %
(by default)
HVS)
The SOC limits of Li-ion batteries can be modified via the iSolarCloud App by qualified
personnel.
If the battery has not been used or fully charged for a long time, it is recommended
to fully charge the battery manually every 15 days to ensure battery life and
performance.
3.3.1 Charge Management

Backup Charge Management
The emergency charge management function is to protect the battery from the damage
caused by long time excessive discharge. The inverter cannot respond to discharge com-
mand during emergency charge. The following tables describe the emergency charge condi-
tions for different types of batteries.
18
table 3-3 Backup Charge Management for Li-ion Battery
Status Conditions
Either of the following conditions is met:
• SOC ≤ (Min. SOC) – 3% (valid only when the Min. SOC is ≥ 3 %).
Trigger
• A battery under-voltage warning is triggered.
• An emergency charge command is reported to the inverter.

All the following conditions are met:
• SOC ≥ (Min. SOC) – 1% (valid only when the Min. SOC is ≥ 3 %).
Finish
• The battery under-voltage warning is cleared.
• The emergency charge command reported to the inverter is cleared.
table 3-4 Default SOC Conditions for Li-ion Battery Backup Charge
Type Trigger SOC Finishing SOC

SUNGROW SOC ≤ 2 % SOC ≥ 4 %
BYD (Battery-Box Premium HVM /
SOC ≤ 2 % SOC ≥ 4 %
HVS)
Normal Charge Management

When the battery voltage is within the normal range, the inverter can charge the battery if
the PV power is higher than the load power and can ensure that the battery is never over-
charged.
The maximum allowable charge current is limited to the smaller value among the following:
• the maximum charge current of the inverter (30A);
• the maximum / recommended charge current from the battery manufacturer.
For this reason, the battery charge power may not reach the nominal power.
• If the PV voltage is higher than the upper limit value of MPP voltage (560 V),
the battery cannot charge.
• The hybrid inverter will start to charge the battery when the export power value
exceeds a pre-defined threshold value of 70 W.
3.3.2 Discharge Management
Discharge management can effectively protect the battery from deep discharging.
The maximum allowable discharge current is limited to the smaller value among the
following:
• the maximum discharge current of the inverter (30A);
• the maximum / recommended discharge current from the battery manufacturer.
19
For this reason, the battery discharge power may not reach the nominal power.
• If the PV voltage is higher than the upper limit value of MPP voltage (560 V),
the battery cannot discharge.
• The hybrid system will start to discharge the battery when the import power
value exceeds a threshold value of 70 W.
3.4 PID Recovery Function
The inverter is equipped with PID phenomenon recovery function to improve the PV power
generation. During the power generation process, the inverter could carry out a main Anti-
PID function without any influence to the grid side thanks to a particular technology.
• P-type panels
The PID recovery function only applies to P-type panels. When it is enabled, the inverter ris-
es the potential between the negative pole of PV arrays of P-type panels and the ground
through PID module, to recover the PID effect.
figure 3-1 PID Recovery Scheme
• The PID recovery function is inapplicable to N-type panel, please disable it;
• About 20W is consumed during PID recovery at night.
Keep the DC switch "ON" in the PID recovery process. During the process, there is
voltage hazard between inverter / PV module live conductors and ground. Do not
touch any of them.
20
3.5 Communication and Configuration
The inverter provides various ports for device and system monitoring, including RS485,
Ethernet, WLAN, and CAN; various parameters can be configured for optimal operation. All
the inverter information is accessible through the iSolarCloud App.
3.6 Import Power Limit Function
Import power means the total power purchased from grid, which includes power to charge
the battery from grid via inverter, power consumed by local loads and loads connected to in-
verter backup port from grid. Following local regulations, calculate the maximum system tol-
erable power based on the wire and circuit breaker that required by the selected model, and
the value can be set as the Import Power Limit.Import Power Limit can be set on the iSo-
larCloud App.
21
4 Unpacking and Storage
4.1 Unpacking and Inspection
The product is thoroughly tested and strictly inspected before delivery. Nonetheless, dam-
age may still occur during shipping. For this reason, please conduct a thorough inspection
after receiving the product.
• Check the packing case for any visible damage.
• Check the scope of delivery for completeness according to the packing list.
• Check the inner contents for damage after unpacking.
Contact SUNGROW or the transport company in case of any damage or incompleteness,

and provide photos to facilitate services.
Do not dispose of the original packing case. It is recommended to store the device in the
original packing case when the product is decommissioned.
After receiving the product, check whether the appearance and structural parts of
the product are damaged, and check whether the packing list is consistent with the
actual ordered product. If there are problems with the above inspection items, do
not install the device and contact SUNGROW in time.
If any tool is used for unpacking, be careful not to damage the product.
4.2 Inverter Storage
Proper storage is required if the inverter is not installed immediately.
• Store the inverter in the original packing case with the desiccant inside.
• The storage temperature must be always between -30℃ and +70℃, and the storage rel-
ative humidity must be always between 0 and 95 %, non-condensing.
• In case of stacking storage, the number of stacking layers should never exceed the limit
marked on the outer side of the packing case.
• The packing case should be upright.
• If the inverter needs to be transported again, pack it strictly before loading and transport-
ing it.
• Do not store the inverter in places susceptible to direct sunlight, rain, and strong electric
field.
22
User Manual 4 Unpacking and Storage
• Do not place the inverter in places with items that may affect or damage the inverter.
• Store the inverter in a clean and dry place to prevent dust and water vapor from eroding.
• Do not store the inverter in places with corrosive substances or susceptible to rodents
and insects.
• Carry out periodic inspections. Inspection shall be conducted at least once every six
months. If any insect or rodent bites are found, replace the packaging materials in time.
• If the inverter has been stored for more than a year, inspection and testing by professio-
nals are required before it can be put into operation.
Please store the inverter according to the storage requirements. Product damage
caused by failure to meet the storage requirements is not covered by the warranty.
23
5 Mechanical Mounting
Respect all local standards and requirements during mechanical installation.
5.1 Safety during Mounting
Make sure there is no electrical connection before installation.

Before drilling, avoid the water and electricity wiring in the wall.
Poor installation environment will affect system performance!
• Install the inverter in a well-ventilated place.
• Ensure that the heat dissipation system or vent is not blocked.
• Do not install the inverter in an environment with flammable and explosive ob-
jects or smoke.
Improper handling may cause personal injury!
• When moving the inverter, be aware of its weight and keep the balance to pre-
vent it from tilting or falling.
• Wear proper protective equipment before performing operations on the inverter.
• The bottom terminals and interfaces of the inverter cannot directly contact the
ground or other supports. The inverter cannot be directly placed on the ground.
5.2 Location Requirements
Select an optimal mounting location for safe operation, long service life and expected
performance.
• The inverter with protection rating IP65 can be installed both indoors and outdoors.
• Install the inverter at a place convenient for electrical connection, operation, and
maintenance.
24
User Manual 5 Mechanical Mounting
5.2.1 Environment Requirements

• The installation environment must be free of inflammable or explosive materials.
• The location should be not accessible to children.
• The ambient temperature and relative humidity must meet the following requirements.
• Inverters free from direct sunlight, direct rain and snow have longer service life. Consider
sheltered places as the installation location.
• The inverter should be well ventilated. Ensure air circulation.
5.2.2 Carrier Requirements
The mounting structure where the inverter is installed must comply with local/national stand-
ards and guidelines. Ensure that the installation surface is solid enough to bear four times
the weight of the inverter and is suitable for the dimensions of the inverter.
5.2.3 Angle Requirements
Install the inverter vertically. Never install the inverter horizontally, or at forward/backward
tilted, side tilted, or upside down.
25
5 Mechanical Mounting User Manual
5.2.4 Clearance Requirements
Reserve enough clearance around the inverter to ensure sufficient space for heat
dissipation.
In case of multiple inverters, reserve specific clearance between the inverters.
26
Install the inverter at an appropriate height for ease of viewing the screen and LED indicator
and operating switch(es).
5.3 Installation Tools
Installation tools include but are not limited to the following recommended ones. If necessary,
use other auxiliary tools on site.
table 5-1 Tool specification
Goggles Earplugs Dust mask Protective gloves
Insulated shoes Utility knife Marker Wrist strap
Wire cutter Wire stripper Hydraulic plier RJ45 crimping tool
27
MC4 terminal Tube terminal Electric screwdriver Hammer drill (φ10)

crimping tool (4 crimping tool (0.5 (M4, M5, M6)
mm2–6 mm2) mm2–1.0 mm2)
Phillips screwdriver Vacuum cleaner Measuring tape Heat shrink tubing

(M4)
Heat gun Wrench (33 mm, 35 MC4 terminal Multimeter (≥ 600

mm) wrench Vdc)
Rubber mallet Allen wrench (T27)
5.4 Moving the Inverter
Before installation, remove the inverter from the packing case and move it to the installation
site. Follow the instructions below as you move the inverter:
• Always be aware of the weight of the inverter.
• Lift the inverter using the handles positioned on both sides of the inverter.
• Move the inverter by one or two people or by using a proper transport tool.
• Do not release the equipment unless it has been firmly secured.
28
Improper handling may cause personal injury!
• Arrange an appropriate number of personnel to carry the inverter according to

its weight, and installation personnel should wear protective equipment such
as anti-impact shoes and gloves.
• Attention must be paid to the center of gravity of the inverter to avoid tilting dur-
ing handling.
• Placing the inverter directly on a hard ground may cause damage to its metal
enclosure. Protective materials such as sponge pad or foam cushion should be
placed underneath the inverter.
• Move the inverter by holding the handles on it. Do not move the inverter by
holding the terminals.
5.5 Installing the Inverter
Inverter is installed on the wall by means of wall-mounting bracket and the expansion plug
sets.
The expansion plug set shown below is recommended for the installation.
(1) Self-tapping (2) Expansion tube (3) Fender washer (4) Spring washer
screw M6
step 1 Place the wall-mounting bracket to a proper position on the wall. Mark the positions and drill
the holes.
Observe the level on the bracket and adjust until the bubble is in the middle
position.
The depth of the holes should be about 70 mm.
29
* The image shown here is for reference only. The actual product received may differ.
step 2 Place the expansion tubes into the holes. Then secure the wall-mounting bracket to the wall
firmly with the expansion bolt sets.
step 3 Lift the inverter and slide it down along the wall-mounting bracket to make sure they match
perfectly. Use two screw sets to lock both left and right sides.
- - End
30
6 Electrical Connection
6.1 Safety Instructions

connections.
• Must ensure that cables are voltage-free with a measuring instrument before
touching DC cables.
• Before electrical connections, please make sure that the inverter switch and all
switches connected to the inverter are set to "OFF", otherwise electric shock
may occur!
• Ensure that the inverter is undamaged and all cables are voltage free before
performing electrical work.
• Do not close the AC circuit breaker until the electrical connection is complete.
Damage to the product caused by incorrect wiring is not covered by the warranty.
• Electrical connection must be performed by professionals.

connections.
• All cables used in the PV generation system must be firmly attached, properly
insulated, and adequately dimensioned.
All electrical connections must comply with local and national / regional electrical
standards.
• Cables used by the user shall comply with the requirements of local laws and
regulations.
• Only with the permission of the national / regional grid department, the inverter
can be connected to the grid.
31
6 Electrical Connection User Manual
• All vacant terminals must be covered with waterproof covers to prevent affect-
ing the protection rating.
• When the wiring is completed, seal the gap of cable inlet and outlet holes with
fireproof / waterproof materials such as fireproof mud to prevent foreign matter
or moisture from entering and affecting the long-term normal operation of the
inverter.
• Comply with the safety instructions related to PV strings and the regulations re-
lated to the utility grid.
The cable colors in figures in this manual are for reference only. Please select ca-
bles according to local cable standards.
6.2 Terminal Description
All electrical terminals are located at the bottom of the inverter.
figure 6-1 Terminals
* The image shown here is for reference only. The actual product received may differ.
table 6-1 Terminal Description
Decisive Volt-
No. Name Description age
Classification
MC4 terminals for PV input.
PV1+, PV1–, PV2+,
1 The terminal number depends on in- DVC-C
PV2–
veter model.
PV4+/BAT+, PV4–/ Connectors for the battery power
2 DVC-C
BAT- cables
32
User Manual 6 Electrical Connection
Decisive Volt-
No. Name Description age
Classification
Communication connection for RSD,
3 COM2 BMS, RS485, DRM/DI, DO and DVC-A
smart energy meter.
Communication accessory port to be
4 COM1 connected to WiNet-S communica- DVC-A
tion module.
5 BACKUP AC terminal for Backup loads DVC-C
6 GRID AC terminal to connect to the grid. DVC-C
7 Additional grounding terminal. Not applicable
PV3± and PV4± are not applicable to Hybrid inverter.

Do not connect PV strings to PV4±/BAT± ports.
The pin definition of COM2 terminal is shown in the following label.
figure 6-2 Label of COM2 Terminal
table 6-2 Label Description of COM2 Terminal
Label Description
Meter A2, B2 For Smart Energy Meter
CAN H, L For Li-ion battery communication via CAN protocol.
For inverter daisy chain (Reserved)
RS485 A1, B1
For Li-ion battery communication via RS485 protocol.
RSD-1,
RSD Reserved (Detail availability contact SUNGROW)
RSD-2
EN_H, EN_
Enable Enable the battery with a voltage of 12V.
G
33
Label Description
D1/5, D2/6, For external Demand Response Enabling Device ("AU"/
DRM D3/7, D4/8, "NZ")
R, C For Ripple Control Receiver
DO COM, NO Reserved (Detail availability contact SUNGROW)
RJ45-CAN H, L For Li-ion battery communication via CAN protocol.
6.3 Electrical Connection Overview
The electrical connection should be realized as follows:
(A) Router (B) Battery (C) PV string

(D) Inverter (E) AC circuit breaker (F) Smart energy meter
(G) Grid (H) Backup loads (I) Monitoring device
table 6-3 Cable Requirements
No. Cable Type Cable Diameter Cross-section

CAT 5E outdoor
Ethernet
1 shielded network 4.8 – 6 mm 0.08 – 0.2 mm2
cable
cable
Complying with
Battery
2 600 V and 35A 5.5 – 8 mm 6 mm2
power cable
standard
Outdoor multi-core
copper wire cable
3 PV cable complying with 6 – 9 mm 4 – 6 mm2
600 V and 16 A
standard
Communica- Shielded twisted
4 4.8 – 6 mm 0.5 – 1.0 mm2
tion cable pair
34
No. Cable Type Cable Diameter Cross-section

CAT 5E outdoor
shielded network 4.8 – 6 mm 0.08 – 0.2 mm2
cable
4 – 6 mm2 (Rec-
Backup Outdoor 3-core ommend
5 10 – 21 mm
cable copper wire cable SH3.0RS: 4 mm2,
Others: 6 mm2)
Additional Outdoor single-
The same as that of the PE wire in the
6 Grounding core copper wire
AC cable
cable cable
Outdoor 3-core 6 – 16 mm2 (Rec-
7 AC cable 12 – 25.8 mm
copper wire cable ommend 10 mm2)
If local standard have other requirements for cables, set the cable specification according to
the local standard.
6.4 Backup Wiring Diagram

For AU/NZ/SA
For Australia, New Zealand and South Africa, the neutral cable of GRID side and BACK-UP
side must be connected together. Otherwise BACK-UP function will not work.
NO. SH3.0/3.6/4.0/5.0/6.0RS
① 40A/600V DC breaker *
② ≤63A/230V/400V AC breaker
③ 32A/230V/400V AC breaker
④ Depends on loads
⑤ Depends on household loads and inverter capacity
⑥⑦ 30mA RCD (Comply with local regulation)
35
Note 1: * If the battery is integrated with a readily accessible internal DC breaker, no addi-
tional DC breaker is required.
Note 2: The recommended values in the table are for reference only. The actual values must
comply with local standard and actual conditions.
Note 3: The rated current of breaker ② is suggested to lower than that of breaker ⑤.
Note 4: If the rated current of on-site power cables are lower than those recommended
above, the breakers specification should be considered to match the power cables in first
priority.
Note 5: The AC port takes power from the grid and is set according to the grid circuit breaker.
For other countires
For other countires, the following diagram is an example for grid systems without special re-
quirement on wiring connection.
NO. SH3.0/3.6/4.0/5.0/6.0RS
⑤ Depends on household loads and inverter capacity (Optional)
⑥⑦ 30mA RCD (Recommended)
⑧ 300mA RCD (Recommended)
36
priority.
For TT system
In the TT system, the following diagram is an example for grid systems without special re-
quirement on wiring connection.
NO. SH3.0/3.6/4.0/5.0/6.0RS
⑤ Depends on household loads and inverter capacity (Optional)
⑥⑦ 30mA RCD (Recommended)
⑧ 300mA RCD (Recommended)
priority.
37
6.5 External Grounding Connection
Electric shock!
• Make sure that the ground cable is connected reliably. Otherwise, it may cause
electric shock.
• Since the inverter is not equipped with a transformer, neither the negative elec-
trode nor the positive electrode of the PV string can be grounded. Otherwise,
the inverter will not operate normally.
• Connect the grounding terminal to the protective grounding point before AC ca-
ble connection, PV string connection, and communication cable connection.
The external protective grounding terminal must meet at least one of the following
requirements.
• The cross-sectional area of the AC side grounding cable is not less than 10
mm2 for copper wire or 16 mm2 for aluminum wire. It is recommended that both
the external protective grounding terminal and the AC side grounding terminal
be reliably grounded.
• If the cross-sectional area of the AC side grounding cable is less than 10 mm2
for copper wire or 16 mm2 for aluminum wire, ensure that both the external pro-
tective grounding terminal and the AC side grounding terminal are reliably
grounded.
The grounding connection can be made by other means if they are in accordance
with the local standards and regulations, and SUNGROW shall not be held liable
for the possible consequences.
6.5.1 External Grounding Requirements
All non-current carrying metal parts and device enclosures in the PV power system should
be grounded, for example, brackets of PV modules and inverter enclosure.
When there is only one inverter in the PV system, connect the external grounding cable to a
nearby grounding point.
When there are multiple inverters in the PV system, connect grounding points of all inverters
and the PV array frames to the equipotential cable (according to the onsite conditions) to im-
plement an equipotential connection.
6.5.2 Connection Procedure
Additional grounding cable and OT/DT terminal are prepared by customers.
38
step 1 Prepare the cable and OT/DT terminal.
(1) Heat shrink tubing (2) OT/DT terminal
step 2 Remove the screw on the grounding terminal and fasten the cable with a screwdriver.
step 3 Apply paint to the grounding terminal to ensure corrosion resistance.
- - End
6.6 AC Cable Connection

6.6.1 AC Side Requirements
Only with the permission of the local grid department, the inverter can be con-
nected to the grid.
39
Before connecting the inverter to the grid, ensure the grid voltage and frequency comply with
requirements, for which, refer to "Technical Date". Otherwise, contact the electric power
company for help.
AC Circuit Breaker
An independent two-pole circuit breaker must be installed on the output side of the inverter
to ensure safe disconnection from the grid. The recommended specifications are as follows.
Recommended Specifica- Recommended Specifica-

Inverter Model
tion (back-up) tion (on-grid)
SH3.0/3.6/4.0/5.0/6.0RS 32 A ≤ 63 A
Testing to AS/NNZS 4777.2:2020 Section for multiple phase combinations has not
been conducted.
AC circuit breakers should be installed on the output side of the inverter and the
grid side to ensure safe disconnection from the grid.
• Determine whether an AC circuit breaker with greater overcurrent capacity is re-

quired based on actual conditions.
• Do not connect any local load between the inverter and the AC circuit breaker.
• Multiple inverters cannot share one AC circuit breaker.
Residual Current Monitoring Device

With an integrated universal current-sensitive residual current monitoring unit included, the
inverter will disconnect immediately from the mains power once a fault current with a value
exceeding the limit is detected.
However if an external residual current device (RCD) (type A is recommended) is mandatory,
the switch must be triggered at a residual current of 300 mA (recommended). RCD of other
specifications can also be used according to local standard.
6.6.2 Connecting the AC Cable

step 1 Disconnect the AC circuit breaker and secure it against reconnection.
step 2 Unscrew the swivel nut and take out the sealing ring.
40
step 3 Thread the AC cable through the swivel nut, appropriate sealing and waterproof cover in
sequence.
step 4 Strip the cable jacket and the wire insulation as shown in the following figure.
step 5 Crimp the OT/DT terminal.
41
step 6 Remove the waterproof lid from the GRID terminal.
step 7 Fix all the wires to the terminals according to the assignment and tighten to a torque of 2.0
N•m with a screwdriver.
Observe the terminal assignment. Do not connect any phase line to the "PE" termi-
nal or PE wire to "N" terminal. Otherwise, unrecoverable damage to the inverter
may follow.
42
step 8 Secure the AC waterproof cover to the inverter with a torque of 1.2 N•m and tighten the swiv-
el nut to a torque of 5 N•m–6 N•m.
step 9 Connect the PE wire to ground and the phase lines and the “N” line to AC circuit breaker.
Then connect the AC circuit breaker to electric board.
step 10 Make sure all wires are firmly installed via the right torque tool or dragging the cables slightly.
- - End
6.7 DC Cable Connection
43
• Make sure the PV array is well insulated to ground before connecting it to the
inverter.
• Make sure the maximum DC voltage and the maximum short circuit current of
any string never exceed inverter permitted values specified in "Technical Data".
• Check the positive and negative polarity of the PV strings, and connect the PV
connectors to corresponding terminals only after ensuring polarity correctness.
• During the installation and operation of the inverter, please ensure that the posi-
tive or negative electrodes of PV strings do not short-circuit to the ground. Oth-
erwise, an AC or DC short-circuit may occur, resulting in equipment damage.
The damage caused by this is not covered by the warranty.
• Electric arc or contactor over-temperature may occur if the PV connectors are

not firmly in place, and SUNGROW shall not be held liable for any damage
caused.
• If the DC input cables are reversely connected or the positive and negative ter-
minals of different MPPT are shorted to ground at the same time, while the DC
switch is in the "ON" position, do not operate immediately. Otherwise, the inver-
ter may be damaged. Please turn the DC switch to "OFF" and remove the DC
connector to adjust the polarity of the strings when the string current is lower
than 0.5 A.
The following requirements about PV string connection must be met. Otherwise, it

may cause irreversible damage to the inverter, which is not covered by the
warranty.
• Mixed use of different brand or model of PV modules in one MPPT circuit, or PV

modules of different orientation or angles in a string may not damage inverter
but will cause system bad performance!
• The inverter enters standby state when the input voltage ranges between 560 V
and 600 V. The inverter returns to running state once the voltage returns to the
MPPT operating voltage range, namely, 40 V to 560 V.
6.7.1 PV Input Configuration

• The inverters have two PV inputs, each with independent MPP tracker. Each DC input
area can operate independently.
• The PV strings to two DC input areas may differ from each other, including PV module
type, number of PV modules in each string, angle of tilt, and installation orientation.
44
figure 6-3 PV Input Configuratinon
Prior to connecting the inverter to PV inputs, the following electrical specifications must be
met simultaneously:
Inverter Model Open-circuit Voltage Limit Max. Current for Input Connector
SH3.0/3.6/4.0/
600 V 20 A
5.0/6.0RS
6.7.2 Assembling the PV Connectors
High voltage may be present in the inverter!
• Ensure all cables are voltage-free before performing electrical operations.
• Do not connect the DC switch and AC circuit breaker before finishing electrical
connection.
To ensure IP65 protection, use only the supplied connector.
step 1 Strip the insulation from each DC cable by 7 mm–8 mm.
step 2 Assemble the cable ends with the crimping pliers.
45
1: Positive crimp contact 2: Negative crimp contact
step 3 Lead the cable through cable gland, and insert the crimp contact into the insulator until it
snaps into place. Gently pull the cable backward to ensure firm connection. Tighten the ca-
ble gland and the insulator (torque 2.5 N.m to 3 N.m).
step 4 Check for polarity correctness.
If the PV polarity is reversed, the inverter will be in a fault or alarm state and will
not operate normally.
- - End
6.7.3 Installing the PV Connector

step 1 Rotate the DC switch to “OFF” position.
46
step 2 Check the cable connection of the PV string for polarity correctness and ensure that the
open circuit voltage in any case does not exceed the inverter input limit of 600V.
step 3 Connect the PV connectors to corresponding terminals until there is an audible click.
step 4 Follow the foregoing steps to connect PV connectors of other PV strings.
step 5 Seal any unused PV terminal with a terminal cap.
- - End
6.8 Emergency Load Connection (Backup)
Risk of inverter damage due to incorrect cable connection. Do not connect the grid
power wires to BACKUP port.
47
Do not short-circuit the Backup port during operation. Otherwise, the inverter or
power distribution system will be seriously damaged. The loss is not covered by
the SUNGROW warranty.
step 1 Unscrew the swivel nut of the AC connector.
step 2 Thread the AC cable of appropriate length through the swivel nut, the sealing ring and the
housing.
step 3 Remove the cable jacket by less than 45 mm, and strip the wire insulation by 12 mm–16 mm.
step 4 Open the clamp on the spring-loaded terminal and fully insert the wires into the correspond-
ing holes. Then close the clamp and push the terminal plug into the housing until there is an
audible click.
48
Observe the plug assignment.
• Do not connect the L line to the "PE" terminal or the PE wire to the "N" terminal.
Otherwise, unrecoverable damage to the inverter may follow.
• Do not connect the L line and the N line in reverse, otherwise the inverter may
not operate normally.
step 5 Ensure that the wires are securely in place by slightly pulling them. Tighten the swivel nut to
the housing.
step 6 Remove the waterproof lid from the BACKUP terminal.
step 7 Lift the locking part upwards and insert the AC connector into the BACKUP terminal on the
bottom side of the inverter. Then press the locking part and lock it with the screw.
49
step 8 Connect the other ends to the emergency loads. Pull all the lines outward lightly to check
whether they are firmly installed.
- - End
6.9 Battery Connection
This section mainly describes the cable connections on the inverter side. Refer to the in-
structions supplied by the battery manufacturer for the connections on the battery side and
configuration.
Only use properly insulated tools to prevent accidental electric shock or short cir-
cuits. If insulated tools are not available, use electrical tape to cover the entire ex-
posed metal surfaces of the available tools except their tips.
The plug connector must be connected only by trained electricians.
Do not disconnect under load!

Battery connectors must not be disconnected while under load. They can be
placed in a no load state by shutting down the inverter completely.
During the installation and operation of the inverter, please ensure that the positive
or negative polarities of batteries do not short-circuit to the ground. Otherwise, an
AC or DC short-circuit may occur, resulting in equipment damage. The damage
caused by this is not covered by the warranty.
50
The hybrid inverter is not connected to a battery and does not support off-grid op-
eration functions.
6.9.1 Connecting the Power Cable
A fuse with the specification of 150 V / 125 A (type: Bussmann BS88 125LET) is integrated
to the BAT- terminal.
A two-pole DC circuit breaker with overcurrent protection (voltage rating not less
than 100 V and current rating not less than 100 A) should be installed between the
inverter and the battery.
If the battery is integrated with a readily accessible internal DC breaker, no addi-
All power cables are equipped with water-proof direct plug-in connectors, which match the
battery terminals at the bottom of the inverter.
6.9.1.1 Assembling the SUNCLIX Connector
During assembly, be careful not to contaminate, pull out, or shift, the seal in the ca-
ble gland. A contaminated or shifted seal impairs strain relief and leak tightness.
figure 6-4 SUNCLIX Connector Components
1: Spring 2: Sleeve 3: Insert 4: Cable gland
step 1 Strip the insulation from the cable by 15 mm.
51
step 2 Pry the connection open and pull the sleeve and the insert apart.
step 3 Insert the stripped cable into the cable gland up to the stop. The stranded wire can be seen
inside the spring. Press the spring down until it audibly snaps into place.
step 4 Push the insert into the sleeve and tighten the cable gland (torque 2 N·m).
- - End
6.9.1.2 Installing the SUNCLIX Connector
Only connect these connectors with other SUNCLIX connectors. When making the
connections, always observe the specifications regarding nominal voltage and
nominal current. The smallest common value is permissible.
52
step 1 Plug the connectors into PV4+/BAT+ and PV4-/BAT- terminals.
step 2 Ensure that the connectors are securely in place.
- - End
6.9.2 Connecting the CAN Cable
The CAN cable enables the communication between the inverter and the Li-ion battery from
SUNGROW and BYD.
• Pin terminal connection
Refer to the section "6.11 Meter Connection" for details. Plug the wires into the H and L ter-
minals according the labels on the bottom of the inverter.
• RJ45 connection
Refer to the section "6.13 DRM Connection" for details. Plug the wires into the RJ45–CAN
terminal on the bottom of the inverter.
6.9.3 Connecting the Enable Cable
The Enable cable along with the RS485 cable, are used for communication between the in-
verter and the Li-ion battery.
For detailed connection description of the RS485 cable, refer to the section "6.12 RS485
Connection".
For detailed connection description of the Enable cable, refer to the section "6.11 Meter Con-
nection". Plug the wires into the EN_H and EN_G terminals according the labels on the bot-
tom of the inverter.
6.10 WiNet-S Connection
The WiNet-S module supports Ethernet communication and WLAN communication. It is not
recommended to use both communication methods at the same time.
For details, see the quick guide for the WiNet-S module. Scan the following QR code for the
quick guide.
53
6.10.1 Ethernet Communication

step 1 (Optional) Strip the insulation layer of the communication cable with an Ethernet wire strip-
per, and lead the corresponding signal cables out. Insert the stripped communication cable
into the RJ45 plug in the correct order, and crimp it with a crimper.
1: RJ45 plug 2：Protective cap
Skip this step if a standard network cable with RJ45 plug is prepared.
step 2 Unscrew the swivel nut from the communication module and take out the inner sealing ring.
step 3 Unscrew the housing from the communication module.
54
step 4 Thread the network cable through the swivel nut and gasket. Afterwards, route the cable into
the opening of the sealing. Finally, insert the cable through the housing.
step 5 Insert the RJ45 plug into the front plug connector until there is an audible click and tighten
the housing. Install the gasket and fasten the swivel nut.
step 6 Remove the waterproof lid from the COM1 terminal and install WiNet-S.
55
step 7 Slightly shake it by hand to determine whether it is installed firmly.
- - End
6.10.2 WLAN Communication

step 1 Remove the waterproof lid from the COM1 terminal.
step 2 Install the module. Slightly shake it by hand to determine whether it is installed firmly, as
shown below.
step 3 Refer to the guide delivered with the module for the set-up.
- - End
6.11 Meter Connection
step 1 Remove the cable jacket and strip the wire insulation.
56
step 2 (Optional) When using a multi-strand wire cable, connect the wire head to the cord end ter-
minal. In case of single-strand copper wire, skip this step.
step 3 Unscrew the swivel nut from the connector.
step 4 Remove the seal and route the cable into the opening of the sealing.
57
step 5 Plug the wires into the corresponding terminals as shown in the following figure. Ensure that
the wires are securely in place by slightly pulling them.
step 6 Remove the waterproof lid from the COM2 terminal.
step 7 Insert the terminal plug into the COM2 terminal at the bottom side of the inverter and then in-
stall the housing.
58
step 8 Slightly pull out the cable and then fasten the swivel nut. Lock the connector with the screw.
- - End
6.12 RS485 Connection
The RS485 connection is reserved for inverter daisy chain. The availability will be updated in
the upcoming manual version.
For detailed connection description, refer to the section "6.11 Meter Connection". Plug the
wires into the A1 and B1 terminals according the labels on the bottom of the inverter.
6.13 DRM Connection
DRM and Ripple Control support only one function at the same time.
DRM
In Australia and New Zealand, the inverter supports the demand response modes as speci-
fied in the standard AS/NZS 4777.
The following figure shows the wiring between the inverter and the external DRED.
59
table 6-4 Method of Asserting DRM
Asserted by Shorting Terminals Switch Operation on External

Mode
on Inverter DRED
DRM0 R&C Close S1 and S5
DRM1 D1/5 & C Close S1
DRM5 D1/5 & R Close S5
Ripple Control
In Germany, the grid company uses the Ripple Control Receiver to convert the grid dispatch-
ing signal and send it as a dry contact signal.
Wiring of the ripple control receiver dry contact cables is shown in the figure below:
step 1 (Optional) Strip the insulation layer of the communication cable with an Ethernet wire strip-
per, and lead the corresponding signal cables out. Insert the stripped communication cable
into the RJ45 plug in the correct order, and crimp it with a crimper.
60
1: RJ45 plug 2：Protective cap
Skip this step if a standard network cable with RJ45 plug is prepared.
step 2 Unscrew the swivel nut from the connector.
step 3 Remove the seal.
61
step 4 Lead the cable through the cable gland.
step 5 Plug the wires into the corresponding terminals as shown in the following figure. Ensure that
the wires are securely in place by slightly pulling them.
step 6 Slightly pull out the cable and then fasten the swivel nut. Lock the connector with the screw.
- - End
62
7 Commissioning
7.1 Inspection before Commissioning
Check the following items before starting the inverter:
• All equipment has been reliably installed.
• DC switch(es) and AC circuit breaker are in the "OFF" position.
• The ground cable is properly and reliably connected.
• The AC cable is properly and reliably connected.
• The DC cable is properly and reliably connected.
• The communication cable is properly and reliably connected.
• The vacant terminals are sealed.
• No foreign items, such as tools, are left on the top of the machine or in the junction box (if
there is).
• The AC circuit breaker is selected in accordance with the requirements of this manual
and local standards.
• All warning signs & labels are intact and legible.
7.2 Powering on the System
If all of the items mentioned above meet the requirements, proceed as follows to start up the
inverter for the first time.
step 1 Turn on the AC circuit breaker between the inverter and the grid.
step 2 (Optional) Connect the external DC circuit breaker between the inverter and the battery pack
if a battery is equipped.
step 3 (Optional) Power on the battery pack manually if a battery is equipped.
step 4 Rotate the DC switch of the inverter to "ON" position.
step 5 If the irradiation and grid conditions meet requirements, the inverter will operate normally.
Observe the LED indicator to ensure that the inverter operates normally. Refer to "2.4 LED
Panel" for LED screen introduction and LED indicator definition.
step 6 Refer to the quick guide for WiNet-S for its indicator definition.
- - End
63
7 Commissioning User Manual
7.3 App Preparation
step 1 Install the iSolarCloud App with latest version. Refer to "8.2 Installing the App".
step 2 Register an account. Refer to "8.3 Account Registration". If you have got the account and
password from the distributor/installer or SUNGROW, skip this step.
step 3 Download the firmware package to the mobile device in advance. Refer to “Firmware Upa-
date”. This is to avoid download failure due to poor on-site network signal.
- - End
7.4 Creating a Plant
Screenshots of creating a plant are for reference only. For details, refer to the actual screen.
step 1 Open the App, tap at the upper right corner and tap Select Server. Choose the same
server as when registering.
figure 7-1 Selecting the Server
step 2 Enter the account and password on the login screen and tap Login to enter the App home
screen.
step 3 Tap the icon at the upper right corner to enter the creating screen.
64
User Manual 7 Commissioning
figure 7-2 Creating Power Plant
step 4 Select plant type to RESIDENTIAL and inverter type to HYBRID.
figure 7-3 Selecting Plant/Inverter Type
step 5 Scan the QR code on the communication device or manually enter the serial number of the
communication device. Tap Next after the QR code is identified or the serial number entered
is correct and then tap CONFIRM. Your mobile device is thus connected to the WiNet-S
successfully.
figure 7-4 Connecting Mobile Device to WiNet-S
step 6 Select the Internet access mode to WLAN or ETHERNET according to actual connection.
The following description is for WLAN access mode.
65
figure 7-5 Selecting Internet Access Mode
step 7 The EASYCONNECT INSTRUCTION screen will prompt. Press the multi-function button on
the WiNet-S module once to turn on EasyConnect mode. The WLAN indicator on WiNet-S
blinks quickly when this mode is turned on. Return to the App and the screen displays suc-
cessful connection to the inverter WLAN. Tap NEXT.
figure 7-6 Turn on EasyConnect Mode
The EasyConnect mode can be used only when the router is 2.4 GHz.
If the EasyConnect mode fails, refer to the WiNet-S quick guide for the instructions
of other modes.
step 8 Connect the inverter to router network. Enter network name and password. Tap NEXT and
the screen display prompt information of successful connection to the router network.
figure 7-7 Connecting Inverter to Router Network
- - End
66
7.5 Initializing the Device
The inverter is successfully connected to the router.

If there is no latest equipment upgrade package, skip steps 1 and 2.
The actual initializing procedure may differ due to different countries. Please follow the ac-
tual App guidance.
step 1 If a latest equipment upgrade package is available, the following prompt window pops up.
Tap UPDATE NOW to download the latest update package.
figure 7-8 Upgrade Reminder
step 2 After download, it would take around 15 minutes to update. After successful upgrade, the
screen will show the version numbers before and after the upgrade as well as the upgrade
time. Tap NEXT.
figure 7-9 Upgrading Inverter
If the communication equipment is upgraded, after successful upgrade, check and

confirm that the phone is connected to the inverter WLAN.
step 3 Tap Country/Region and select the country where the inverter is installed at.
The parameter Country/Region must be set to the country (region) where the inver-
ter is installed at. Otherwise, the inverter may report errors.
For the commissioning process – country code must be selected before the inver-
ter can operate.
67
step 4 When the country is set to Australia, additionally set the applicable network service provider
and then the grid type.
The image shown here is for reference only. Refer to the actual interface for the supported
network service providers.
table 7-1 Description of Network Service Provider and Grid Type
Network Service Provider Grid Type

AS/NZS 4777.2:2015 /
AS/NZS 4777.2:2020
/
Australia A
AS/NZS 4777.2:2020
/
Australia B
AS/NZS 4777.2:2020
/
Australia C
• STNW1170: single-phase ＜ 10 kVA &

ENERGEX & Ergon Energy three-phase ＜ 30 kVA
• STNW1174: 30 kVA ＜ Pn ≤ 1500 kVA
• ≤ 10 kVA per phase (or 30 kVA per three

Jemena phase)
• ELE GU 0014: 30 kVA–200 kVA

Endeavour Energy MDI 0043
Ausgrid NS194
68
Network Service Provider Grid Type
• ≤ 5 kVA for single-phase & 30 kVA for

CitiPower & Powercor three-phase
• ＞ 30 kVA three-phase
• UE-ST-2008.1: ≤ 10 kVA for single-

United Energy phase & 30 kVA for three-phase
• UE-ST-2008.2: ＞ 30 kVA three-phase

Embedded Generation Notice Photovoltaic
PowerWater
Systems:2020
• TS129-2019: < 10 kW for single-phase

& 30 kW for three-phase
SA Power Networks
• TS130-2017: > 30 kW & ≤ 200 kW
• TS131-2018: > 200 kW
• HPC-9DJ-13-0001-2019: ≤ 10kVA for

single-phase & 30 kVA for three-phase
Horizon Power
• HPC-9DJ-13-0002-2019: > 30kVA &
≤1MVA
westernpower EDM＃33612889-2019
AusNet Services Basic Micro Embedded Generation: 2020
* For compliance with AS/NZS 4777.2:2020, please select from Australia A/B/C. Please con-
tact your electricity grid operator for which region to use.
step 5 Initialize parameters according to local grid requirements, including grid type, reactive power
regulation mode, etc. The screen displays that the inverter is successfully configured.
69
figure 7-10 Initializing Parameters
- - End
7.6 Configuring the Plant
The inverter is successfully added to the plant and initialized. Refer to the guidance in pre-
vious sections.
The distributor/installer who creates a plant for the end user needs to get the end user's e-
mail address. In configuring a plant, the e-mail address is required, and each e-mail address
can be registered only once.
step 1 The App screen will display the added inverter. Tap NEXT to configure the plant.
figure 7-11 Display the Added Inverter
step 2 Fill in the plant information. The fields marked with * must be filled in.
70
figure 7-12 Entering Plant Information
step 3 (Optional) Fill in the tariff information. The electricity price can be set to a specific value or
Time-of-Use tariff.
figure 7-13 Entering Tariff Information
step 4 Fill in the end user's e-mail address. The first time you fill in the end user's e-mail address,
the system will create an account for the end user and send an email to the end user. The
end user can activate the account via the email.
The Distributor/installer creates plants for the end user and can manage the plants
by default.
71
figure 7-14 Entering Owner's e-mail
step 5 Tap NEXT to wait for the inverter to connect to the iSolarCloud.
figure 7-15 Configuration Completed
step 6 (Optional) Tab View live data for the device, tick Inverter or Total Plant Devices and tab
ALL PLANTS OPEN. The clock symble indicates that the live data view function is success-
fully enabled. Tab the inverter to view the live data about voltage, current, power or curve.
Contact Sungrow service to enable live data function of devices. Once enabled,
live data function is available for 3 hours per day by default. To make it available
for 24 hours, contact SUNGROW.
step 7 Tab BACK to the COMPLETED screen. Tab PDF REPORT to export the plant configuration
report.
step 8 Tab BACK to the COMPLETED screen. Tab DASHBOARD to return and manually refresh
the page until the newly created plant is displayed with status commissioned.
- - End
Inverter has export limit control but this function is not certified to AS/NZS
4777.2:2020.
72
8 iSolarCloud App
8.1 Brief Introduction
The iSolarCloud App can establish communication connection to the inverter via the WLAN,
providing remote monitoring, data logging and near-end maintenance on the inverter. Users
can also view inverter information and set parameters through the App.
* To achieve direct login via WLAN, the wireless communication module developed and
manufactured by SUNGROW is required. The iSolarCloud App can also establish communi-
cation connection to the inverter via Ethernet connection.
• This manual describes only how to achieve near-end maintenance via WLAN
direct connection.
• Screenshots in this manual are based on the V2.1.6 App for Android system,
and the actual interfaces may differ.
8.2 Installing the App

Method 1
Download and install the App through the following application stores:
• MyApp (Android, mainland China users)
• Google Play (Android, users other than mainland China ones)
• App Store (iOS)

Method 2
Scan the following QR code to download and install the App according to the prompt
information.
The App icon appears on the home screen after installation.
73
8 iSolarCloud App User Manual
8.3 Account Registration
The account distinguishes two user groups, end user and distributor/installer.
• The end user can view plant information, create plants, set parameters, share plants, etc.
• The distributor/installer can help the end user to create plants, manage, install, or main-
tain plants, and manage users and organizations.
step 1 Tap REGISTER to enter the registration screen.
step 2 Select the relevant server for your area.
step 3 Select End user or Distributor/Installer to enter the corresponding screen.
74
User Manual 8 iSolarCloud App
step 4 Fill in the registration information, including email, verification code, password and affirm-
ance and country (region). The distributor/installer has the permission to fill in the company
name and the code of upper level distributor/installer.
The code of upper level distributor/installer can be obtained from the upper level
distributor/installer. Only when your organization belongs to the upper level distrib-
utor/installer organization, can you fill in the corresponding code.
step 5 Tick Accept privacy protocol and tap Register to finish the registration operation.
- - End
8.4 Login
8.4.1 Requirements
The following requirements should be met:
• The AC or DC side of the inverter is powered-on.
• The WLAN function of the mobile phone is enabled.
• The mobile phone is within the coverage of the wireless network produced by the com-
munication module.
8.4.2 Login Procedure

step 1 For the WiNet-S module, press the multi-function button 3 times to enable the WLAN hot-
spot. No password is required and the valid time is 30 minutes.
75
figure 8-1 Enabling the WLAN Hotspot
step 2 Connect the mobile phone to the WLAN network named as "SG-xxxxxxxxxxx" (xxxxxxxxxxx
is the serial number indicated on the side of the communication module).
step 3 Open the App to enter the login screen. Tap Local Access to enter the next screen.
step 4 Select WLAN and select the device (SN), then enter the password and tap LOGIN.
• If the WiFi signal, serial number or inverter related data information cannot be
found, unplug and reinsert the Winet-S or press the multi-function button of the
Winet-S three times.
• The default account is "user" and the initial password is "pw1111" which should
be changed for the consideration of account security. Tap "More" at the lower
right corner on home page and choose "Change Password".
figure 8-2 WLAN Local Access
step 5 If the inverter is not initialized, navigate to the quick setting screen to initialize the protection
parameters. For details, please refer to "Initial Settings".
76
The "Country/Region" must be set to the country where the inverter is installed at.
Otherwise, the inverter may report errors.
figure 8-3 WLAN Local Access
step 6 After finishing the settings, tap TUNR ON DEVICE at the upper right corner and the device
will be initialized. The App will send start instructions and the device will start and operate.
step 7 After initialization settings, the App will return automatically to the home page.
- - End
8.5 Initial Settings

8.5.1 Feed-in Limitation
The function of the feed-in limitation is to control the amount of power injected in the grid by
the plant. In some situations，this function is also called as Export limitation or Zero ex-
port. The feed-in limitation function requires the using of Smart Energy Meter. Without the
Smart Energy Meter, the feed-in limitation function will be unavailable.
table 8-1 Description of feed-in limitation parameters
Parameter Default value Range

Feed-in Limitation Off On / Off
Feed-in Limitation Value Rated power 0 ~ Rated power
Feed-in Limitation Ratio 100.0% 0 ~ 100%
Rated Power of Original Power
Depends on inverter power of other companies
Generation Systems
77
8.5.2 Backup Mode
The backup mode is off by default, the user can set an amount of Reserved Battery SOC
for Off-Grid. It is the minimum battery level in the on-grid state and will be supplied to the
Backup loads in case of grid blackout.
8.6 Function Overview
The App provides parameter viewing and setting functions, as shown in the following figure.
figure 8-4 App Function Tree Map
8.7 Home
Home page of the App is shown in the following figure.
78
figure 8-5 Home
table 8-2 Home page description

Shows the PV power generation power, feed-in
power, etc. The line with an arrow indicates energy
1 Load flow chart
flow between connected devices, and the arrow
pointing indicates energy flow direction.
2 Today yield Shows today power generation of the inverter
Direct Power Con-
3 Shows electricity directly consumed by loads today
sumption of Today
4 Battery SOC Indicates remaining battery capacity
Today Self-consu Indicates today self-consumption rate of the PV
5
Rate system
Includes menus of Home, Run Information, Re-
6 Navigation bar
cords, and More.
If the inverter runs abnormally, the fault icon appears on the upper left corner of the
screen. Users can tap the icon to view detailed fault information and corrective measures.
8.8 Run Information
Tap Run Information on the navigation bar to enter the corresponding screen, as shown in
the following figure.
79
figure 8-6 Run Information
The run information includes the PV information, inverter information, input, output, grid in-
formation, load information, and battery information.
8.9 Records
Tap Records on the navigation bar to enter the screen, as shown in the following figure.
figure 8-7 Records
On Records screen, users can view chart and check fault alarm record.
8.9.1 Chart
Tap Chart to enter the screen showing daily power generation, as shown in the following
figure.
80
figure 8-8 Power Curve
The App displays power generation records in a variety of forms, including daily power gen-
eration graph, monthly power generation histogram, annual power generation histogram,
and total power generation histogram.
table 8-3 Description of power generation records
Item Description
Daily power generation Indicates today power generation, charging, feed-in power,
graph and direct consumption power
Monthly power generation Indicates monthly power generation, charging, feed-in
histogram power, and direct consumption power
Annual power generation Indicates annual power generation, charging, feed-in power,
histogram and direct consumption power
Total power generation Indicates total power generation, charging, feed-in power,
histogram and direct consumption power
8.9.2 Fault Alarm Record
Tap Fault Alarm Record to enter the screen, as shown in the following figure.
81
figure 8-9 Fault Alarm Record
Click " " to select a time segment and view corresponding records.
Select one of the records in the list and click the record, to view the detailed fault info as
shown in following figure.
figure 8-10 Detailed fault alarm info
8.9.3 Event Record
Tap Event Record to enter the screen, as shown in the following figure.
figure 8-11 Event Record
Click to select a time segment and view corresponding records.
8.10 More
Tap More on the navigation bar to enter the screen, as shown in the following figure.
82
figure 8-12 More
The More screen supports the following operations:
• Set parameters including inverter system parameters and energy management

parameter.
• Upgrade inverter firmware (ARM/DSP/PVD/CPLD).
8.10.1 System Parameters
Tap Settings→System Parameters to enter the corresponding screen, as shown in the fol-
lowing figure.
figure 8-13 System Parameters
* The image shown here is for reference only.
83
Boot/Shutdown
Tap Boot/Shutdown to send the boot/shutdown instruction to the inverter.
For Australia and New Zealand, when the DRM state is DRM0, the "Boot" option will be
prohibited.
Date Setting/Time Setting
The correct system time is very important. Wrong system time will directly affect the data
logging and power generation value. The clock is in 24-hour format.
Software Version
Version information of the current firmware.
8.10.2 Running Time
Tap Settings→Operation Parameters→Running Time to enter the corresponding screen,

on which you can set Connecting Time and Reconnecting Time.
figure 8-14 Running Time
table 8-4 Description of running time parameters
Parameter Explanation Default Range

The time that the inverter takes to enter in-
Connecting
to the running mode from the standby 60s 10s ~ 900s
Time
mode in fault-free state
The time that the inverter takes to recover
Reconnect-
from the fault state to normal state (the in- 60s 0s ~ 3600s
ing Time
verter is not running)
8.10.3 Regular Parameters
Tap Settings→Operation Parameters→Regular Parameters to enter the screen, as

shown in the following figure.
figure 8-15 Regular Parameters
After connecting the load to the DO terminals, a relay control signal will be transmitted.
Users can flexibly set the control mode of DO configuration according to individual demand.
84
table 8-5 The control mode of DO configuration
Mode Setting description

Off -
Grounding Detection See "8.10.11 Grounding Detection"
8.10.4 Off-grid Parameters
Tap Settings→Operation Parameters→Off-grid Parameters to enter the screen, as

shown in the following figure.
figure 8-16 Off-grid Parameters
Refer to the description in "8.5.2 Backup Mode" .
8.10.5 Active Power Regulation
Tap Settings→Power Regulation Parameters→Active Power Regulation to enter the

screen, as shown in the following figure.
figure 8-17 Active Power Regulation
table 8-6 Description of active power regulation
Parameter Description Default Range

Switch for activating/deactivating the
Active Power Soft
function of active power soft start after On On/Off
Start after Fault
a fault occurs
Active Power Soft The soft start time required for raising
Start Time after active power from 0 to rated value 600s 1s ~ 1200s
Fault after a fault occurs
85

Active Power Gra- Set whether to enable active power
On On/Off
dient Control gradient control
Active Power De- Decline gradient of inverter active
cline Gradient power per minute 3%/min ~
39%/min
Active Power Ris- Rising gradient of inverter active 6000%/min
ing Gradient power per minute
Switch for activating/deactivating the
Active Power Set-
function of active power setting Off On/Off
ting Persistence
persistence
Active Power Limit Switch for limiting active power On On/Off
Active Power Limit The ratio of active power limit to rated
100.0% 0 ~ 100%
Ratio power in percentage
Ripple Control Switch for Ripple Control Off On/Off
8.10.6 Reactive Power Regulation
Tap Settings→Power Regulation Parameters→Reactive Power Regulationto enter the

screen, as shown in the following figure.
figure 8-18 Reactive Power Regulation
table 8-7 Description of reactive power regulation

Reactive Power Switch for activating/deactivating the
Setting function of reactive power setting On On / Off
Persistence persistence
Off / PF /
Reactive Power
- Off Qt / Q(P) /
Regulation Mode
Q(U)
table 8-8 Descriptions of reactive power regulation mode:
Mode Descriptions
Off The PF is fixed at +1.000.
PF The reactive power can be regulated by the parameter PF (Power Factor).
Qt The reactive power can be regulated by the parameter Q-Var limits (in %).
Q(P) The PF changes with the output power of the inverter.
Q(U) The reactive power changes with the grid voltage.
86
“Off” Mode
The reactive power regulation function is disabled. The PF is limited to +1.000.
“PF” Mode
The power factor is fixed and reactive power setpoint is calculated according to the current
power. The PF ranges from 0.8 leading to 0.8 lagging.
Leading: the inverter is sourcing reactive power to the grid.
Lagging: the inverter is injecting reactive power into the grid.
“Qt” Mode
In the Qt mode, system rated reactive power is fixed, and the system injects reactive power
according to the delivered reactive power ratio. The Reactive Power Ratio is set through
the App.
The setting range of the reactive power ratio is 0~100% or 0~-100%, corresponding to the
ranges of inductive and capacitive reactive power regulation respectively.
“Q(P)” Mode
The PF of the inverter output varies in response to the output power of the inverter.
table 8-9 “Q(P)” Mode Parameter Descriptions:
Parameter Explanation Range

Select corresponding curve according to
Q(P) Curve A, B, C*
local regulations
Output power at P1 on the Q(P) mode
QP_P1 10% ~ 100%
curve (in percentage)
QP_P2 20% ~ 100%
QP_P3 20% ~ 100%
Power factor at P1 on the Q(P) mode
QP_K1
curve
Power factor at P2 on the Q(P) mode Curve A/C: 0.8 ~ 1
QP_K2
curve Curve B: - 0.6 ~ 0.6
Power factor at P3 on the Q(P) mode
QP_K3
curve
QP_ Voltage percentage for Q(P) function
100% ~ 110%
EnterVoltage activation
Voltage percentage for Q(P) function
QP_ExitVoltage 90% ~ 100%
deactivation
Power percentage for Q(P) function
QP_ExitPower 1% ~ 20%
deactivation
Unconditional activation/deactivation of Q
QP_EnableMode Yes / No
(P) function
* Curve C is reserved and consistent with Curve A currently.
87
figure 8-19 Q(P) Curve

“Q(U)” Mode
The reactive power output of the inverter will vary in response to the grid voltage.
table 8-10 “Q(U)” Mode Parameter Descriptions:
Parameter Explanation Range

Select corresponding curve according to lo-
Q(U) curve A, B, C*
cal regulations
Voltage hysteresis ratio on the Q(U) mode
Hysteresis Ratio 0 ~ 5%
curve
Grid voltage limit at P1 on the Q(U) mode
QU_V1 80% ~ 100%
curve
Value of Q/Sn at P1 on the Q(U) mode
QU_Q1 -60% ~ 0
curve
QU_V2 80% ~ 110%
curve
QU_Q2 -60% ~ 60%
curve
QU_V3 100% ~ 120%
curve
QU_Q3 -60% ~ 60%
curve
QU_V4 100% ~ 120%
curve
QU_Q4 0 ~ 60%
curve
QU_EnterPower Active power for Q(U) function activation 20% ~ 100%
QU_ExitPower Active power for Q(U) function deactivation 1% ~ 20%
Unconditional activation/deactivation of Q Yes / No / Yes,
QU_EnableMode
(U) function Limited by PF
* Curve C is reserved and consistent with Curve A currently.
88
When selecting Q(U) curve model, select Q(U) model voltage in AU, and Q(U)
model ratio in other regions.
figure 8-20 Q(U) Curve
8.10.7 Battery Discharge Time
Tap Settings→Energy Management Parameter→Battery Discharge Time to enter the

corresponding screen, as shown in the following figure.
figure 8-21 Battery Discharge Time
8.10.8 Battery Forced Charge Time
Tap Settings→Energy Management Parameter→Battery Forced Charge Time to enter

the corresponding screen.
89
figure 8-22 Battery Forced Charge Time
When there is no PV power, the power imported from the grid charges the energy system
during the time period until the target SOC is reached.
It is recommended to set the time period in off-peak tariff time. The time period 1 is in priority
to the time period 2 if two periods overlap. The charging energy comes from the excess PV
energy in priority and then from the grid. The inverter will take charging power from the grid
in the case of PV energy shortage.
8.10.9 Communication Parameters
Tap Settings→Communication Parameters to enter the screen, as shown in the following

figure.
figure 8-23 Communication Parameters
• The device address ranges from 1 to 246.
• The IP adress, gateway, subnet mask, preferred DNS server and alternate DNS server
can be modified only when the DHCP is set to Off.
• Acquire the IP adress, gateway, subnet mask, preferred DNS server and alternate DNS
server from the network professional.
90
8.10.10 Firmware Update
To avoid download failure due to poor on-site network signal, it is recommended to download
the firmware package to the mobile device in advance.
step 1 Enable the "Mobile data" of the mobile device.
step 2 Open the App, enter the account and password on the login screen. Tap Login to enter the
home screen.
step 3 Tap More→Firmware Download to enter corresponding screen on which you can view the
device list.
step 4 Select the device model before downloading the firmware. Tap the device name in the de-
vice list to enter the firmware upgrade package detail interface, and tap behind the firm-
ware upgrade package to download it.
step 5 Return to the Firmware Download screen, tap in the upper right corner of the screen to
view the downloaded firmware upgrade package.
step 6 Login the App via local access mode. Refer to "8.4 Login".
step 7 Tap More on the App home screen and then tap Firmware Update.
step 8 Tap the upgrade package file, a prompt box will pop up asking you to upgrade the firmware
with the file, tap CONFIRM to perform the firmware upgrade.
step 9 Wait for the file to be uploaded. When the upgrade is finished, the interface will inform you of
the upgrade completion. Tap Complete to end the upgrade.
- - End
91
8.10.11 Grounding Detection
Contact SUNGROW to obtain the advanced account and corresponding password

before setting the earth detection parameters.
Unauthorized personnel are not allowed to log in with this account. Otherwise,
SUNGROW shall not be held liable for any damages caused.
Tap More→Settings→Operation Parameters→Grounding Detection to enter the corre-

sponding screen.
figure 8-24 Grounding Detection
If the grounding detection is enabled, the DO relay will switch on automatically to signal the
external alarm if the value exceeds the grounding detection alarm value. The buzzer inside
the inverter will beep.
The PV insulation resistance fault (fault sub-code 039) will trigger the DO relay to signal the
external alarm.
8.10.12 Frequency Shift Power Control
Tap More→Settings→Operation Parameters→Other Parameters to enter the corre-

sponding screen.
Parameter Default value Range

Frequency Shift Power
OFF ON / OFF
Control
Frequency Shift Test OFF ON / OFF
Set Test Frequency 50.00 Hz 50.00 ~ 55.00 Hz
If PV inverters are connected on the AC side during battery-backup operation, the hybrid in-
verter must be able to limit their output power. This limitation becomes necessary when, for
example, the hybrid inverter's battery is fully charged and the power available from the PV
system exceeds the power requirement of the connected loads.
To prevent excess energy from overcharging the battery, the hybrid inverter automatically
detects the problem and changes the frequency at the AC output. This frequency adjustment
is analyzed by the PV inverter. As soon as the power frequency of the battery-backup grid
92
increases beyond the value specified in Set Test Frequency, the PV inverter limits its output
power accordingly.
Before retrofitting the existing PV system to an off-grid port, the Frequency Shift Power
Control parameter needs to be enabled. It must be ensured that the connected PV inverters
limit their power at the AC output via the hybrid inverter due to changes in frequency. The
frequency-dependent active power limitation PF must be set in the PV inverter.
When the battery SOC is greater than 85%, the Hybrid inverter will standby before
starting when switching off-grid, and does not support seamless switching.
8.10.13 Import Power Limit
Import power is the sum of the battery charging power and the load power of the Backup.
Following local regulations, calculate the maximum system tolerable power based on the
wire and circuit breaker that required by the selected model, and the value can be set as the
Import Power Limit. The setup steps are shown below.
Tap More→Settings→Operation Parameters→Other Parameters to enter the
corresponding screen.
93
9 System Decommissioning
9.1 Decommissioning the Inverter

9.1.1 Disconnecting the Inverter
Danger of burns!
Even if the inverter is shut down, it may still be hot and cause burns. Wear protec-
tive gloves before operating the inverter after it cools down.
For maintenance or other service work, the inverter must be switched off.
Proceed as follows to disconnect the inverter from the AC and DC power sources. Lethal
voltages or damage to the inverter will follow if otherwise.
step 1 Disconnect the external AC circuit breaker and secure it against reconnection.
step 2 Rotate the DC switch to the "OFF" position for disconnecting all of the PV string inputs.
step 3 Wait about 10 minutes until the capacitors inside the inverter completely discharge.
step 4 Ensure that the DC cable is current-free via a current clamp.
- - End
9.1.2 Dismantling the Inverter
Risk of burn injuries and electric shock!

Do not touch any inner live parts until for at least 10 minutes after disconnecting
the inverter from the utility grid and the PV input.
Before dismantling the inverter, disconnect both AC and DC connections.
step 1 Refer to "6 Electrical Connection" for the inverter disconnection of all cables in reverse steps.
step 2 Dismantle the inverter referring to "5 Mechanical Mounting" in reverse steps.
step 3 If necessary, remove the wall-mounting bracket from the wall.
step 4 If the inverter will be reinstalled in the future, please refer to "4.2 Inverter Storage" for a prop-
er conservation.
- - End
94
User Manual 9 System Decommissioning
9.1.3 Disposal of the Inverter
Users take the responsibility for the disposal of the inverter.
Please scrap the inverter in accordance with relevant local regulations and stand-
ards to avoid property losses or casualties.
Some parts of the inverter may cause environmental pollution. Please dispose of
them in accordance with the disposal regulations for electronic waste applicable at
the installation site.
9.2 Decommissioning the Battery
Decommission the battery in the system after the inverter is decommissioned. Proceed as
follows to decommission a Li-ion battery.
step 1 Disconnect the DC circuit breaker between the battery and the inverter.
step 2 Disconnect the communication cable between the battery and the inverter.
step 3 Wait for about 1 minute and then use the multimeter to measure the port voltage of the
battery.
step 4 If the battery port voltage is zero, disconnect the power cables from the battery module.
- - End
SUNGROW is not liable for disposal of the battery.
95
10 Troubleshooting and Maintenance
10.1 Troubleshooting
Once the inverter fails, the fault information can be displayed on the App interface. If the in-
verter is equipped with an LCD screen, the fault information can be viewed on it.
The fault codes and troubleshooting methods of all Hybrid inverters are detailed in the table
below. The device you purchase may only contain some of the fault information, and when
the inverter fails, you can check the corresponding information through the fault codes from
the mobile App.
Alarm ID Alarm Name Corrective Measures

Generally, the inverter will be reconnected to the grid
after the grid returns to normal. If the fault occurs
repeatedly:
1. Measure the actual grid voltage, and contact the lo-
cal electric power company for solutions if the grid
2, 3, 14, 15 Grid overvoltage voltage is higher than the set value.
2. Check whether the protection parameters are ap-
propriately set via the App or the LCD. Modify the
overvoltage protection values with the consent of the
local electric power operator.
3. If the fault still exists, contact SUNGROW.
repeatedly:
1. Measure the actual grid voltage, and contact the lo-
cal electric power company for solutions if the grid
4, 5 Grid undervoltage
voltage is lower than the set value.
propriately set via the App or the LCD.
3. Check whether the AC cable is firmly in place.
96
User Manual 10 Troubleshooting and Maintenance

Grid Generally, the inverter will be reconnected to the grid
8
overfrequency after the grid returns to normal. If the fault occurs
repeatedly:
1. Measure the actual grid frequency, and contact the
local electric power company for solutions if the grid
Grid
9 frequency is beyond the set range.
underfrequency
propriately set via the App or the LCD.
repeatedly:
1. Check whether the grid supplies power reliably.
Grid Power 2. Check whether the AC cable is firmly in place.
10
Outage 3. Check whether the AC cable is connected to the
correct terminal (whether the live wire and the N wire
are correctly in place).
4. Check whether the AC circuit breaker is connected.
1. The fault can be caused by poor sunlight or damp
environment, and generally the inverter will be recon-
Excess Leakage nected to the grid after the environment is improved.
12
Current 2. If the environment is normal, check whether the AC
and DC cables are well insulated.
repeatedly:
13 Grid abnormal 1. Measure the actual grid, and contact the local elec-
tric power company for solutions if the grid parameter
exceeds the set range.
97
10 Troubleshooting and Maintenance User Manual

repeatedly:
1. Measure the actual grid voltage. If grid phase vol-
tages differ greatly, contact the electric power com-
Grid voltage
17 pany for solutions.
imbalance
2. If the voltage difference between phases is within
the permissible range of the local power company,
modify the grid voltage imbalance parameter through
the App or the LCD.
1. Check whether the corresponding string is of re-
verse polarity. If so, disconnect the DC switch and ad-
just the polarity when the string current drops below
0.5 A.
28, 29, 208, PV reverse con-
448-479 nection fault
*The code 28 to code 29 are corresponding to PV1 to
PV2 respectively.
*The code 448 to code 479 are corresponding to
string 1 to string 32 respectively.
0.5 A.
532-547, PV Reverse Con-
2. If the alarm still exists, contact SUNGROW.
564-579 nection Alarm
98

Check whether the voltage and current of the inverter
is abnormal to determine the cause of the alarm.
1. Check whether the corresponding module is shel-
tered. If so, remove the shelter and ensure module
cleanness.
2. Check whether the battery board wiring is loose, if
548-563, PV Abnormal so, make it reliably connected.
580-595 Alarm 3. Check if the DC fuse is damaged. If so, replace the
fuse.
Generally, the inverter will resume operation when
the internal or module temperature returns to normal.
If the fault persists:
1. Check whether the ambient temperature of the in-
verter is too high;
Excessively High
2. Check whether the inverter is in a well-ventilated
37 Ambient
place;
Temperature
3. Check whether the inverter is exposed to direct
sunlight. Shield it if so;
4. Check whether the fan is running properly. Replace
the fan if not;
Excessively Low Stop and disconnect the inverter. Restart the inverter
43 Ambient when the ambient temperature rises within the opera-
Temperature tion temperature range.
99

Wait for the inverter to return to normal. If the fault oc-
curs repeatedly:
1. Check whether the ISO resistance protection value
is excessively high via the app or the LCD, and en-
sure that it complies with the local regulations.
Low System Insu-
39 2. Check the resistance to ground of the string and
lation Resistance
DC cable. Take corrective measures in case of short
circuit or damaged insulation layer.
3. If the cable is normal and the fault occurs on rainy
days, check it again when the weather turns fine.
1. Check whether the AC cable is correctly connected.
Grounding cable 2. Check whether the insulation between the ground
106
fault cable and the live wire is normal.
1. Disconnect the DC power supply, and check
whether any DC cable is damaged, the connection
terminal or fuse is loose or there is a weak contact. If
so, replace the damaged cable, fasten the terminal or
88 Electric Arc Fault fuse, and replace the burnt component.
2. After performing step 1, reconnect the DC power
supply, and clear the electric arc fault via the App or
the LCD, after that the inverter will return to normal.
3. Contact SUNGROW if the fault persists.
1. Check if the meter is wrongly connected.
2. Check if the input and output wiring of the meter is
Reverse Connec-
reversed.
84 tion Alarm of the
3. If the existing system is enabled, please check if
Meter/CT
the rated power setting of the existing inverter is
correct.
1. Check whether the communication cable and the
Meter Communi- terminals are abnormal. If so, correct them to ensure
514 cation Abnormal reliable connection.
Alarm 2. Reconnect the communication cable of the meter.
1. Check whether the output port is connected to ac-
Grid
323 tual grid. Disconnect it from the grid if so.
Confrontation
100

Inverter Parallel terminals are abnormal. If so, correct them to ensure
75 Communication reliable connection.
Alarm 2. Reconnect the communication cable of the meter.
terminals are abnormal. If so, correct them to ensure
BMS communica-
714 reliable connection.
tion fault
2. Reconnect the communication cable of the meter.
1. Check and correct polarity of cable connection be-
Abnormal battery
716 tween the battery and the inverter.
connection
Generally, the battery can automatically recover. In
case the alarm persist for a long time:
932–935, 1. If the alarm is caused by ambient temperature,
937, 939, Battery alarm such as over temperature alarm or low temperature
964 alarm, take measures to change the ambient temper-
ature, such as improving heat dissipation conditions.
2. If the fault persists, contact battery manufacturer.
1. In case of abnormal battery voltage, check whether
the battery power cable connection is abnormal (re-
703, 707, verse connection, loose, etc.). If so, correct it to en-
708, 711, sure reliable connection.
712, 715,
2. Check whether the battery real-time voltage is ab-
717, 732–
normal if the battery power cable is correctly con-
737, 739, Battery fault
nected. If so, contact the battery manufacturer. If not,
832–837,
contact SUNGROW.
839, 844,
3. In case of abnormal battery temperature, take
864, 866–
measures to change the ambient temperature, such
868, 870
as improving heat dissipation conditions.
4. If the fault persists, contact battery manufacturer.
101

7, 11, 16,
19–25, 30–
34, 36, 38,
40–42, 44–
50, 52–58,
60–68, 85,
87, 92, 93,
100–105,
107–114,
1. Wait for the inverter to return to normal.
116–124,
2. Disconnect the AC and DC switches, and recon-
200–211,
System Fault nect the AC and DC switches 15 minutes later to re-
248–255,
start the inverter.
300–322,
324–326,
401–412,
600–603,
608, 612,
616, 620,
622–624,
800, 802,
804, 807,
1096–1122
1. Wait for the inverter to return to normal.
nect the AC and DC switches 15 minutes later to re-
605 System Fault start the inverter.
3. Check whether the relay and the fuse are faulty.
Replace them if necessary.
59, 70–72,
74, 76, 82,
83, 89, 77– 1. The inverter can continue running.
81, 216–218, 2. Check whether the related wiring and terminal are
220–231, abnormal, check whether there are any foreign mate-
System Alarm
432–434, rials or other environmental abnormalities, and take
500–513, corresponding corrective measures when necessary.
515–518, 3. If the alarm persists, please contact SUNGROW.
900, 901,
910, 911
102

MPPT Reverse
264-283 0.5 A.
Connection
1. The inverter can continue running.
2. Check whether the related wiring and terminals are
Boost Capacitor
abnormal, check whether there are any foreign mate-
332-363 Overvoltage
rials or other environmental abnormalities, and take
Alarm
corresponding corrective measures when necessary.
3. If the alarm persists, please contact SUNGROW.
Boost Capacitor nect the AC and DC switches 15 minutes later to re-
364-395
Overvoltage Fault start the inverter.
1. Check whether the number of PV modules of the
corresponding string is less than other strings. If so,
disconnect the DC switch and adjust the PV module
configuration when the string current drops below 0.5
A.
String Current 2. Check whether the PV module is shaded.
1548-1579
Reflux 3. Disconnect the DC switch to check whether the
open circuit voltage is normal when the string current
drops below 0.5 A. If so, check the wiring and config-
uration of the PV module.
4. Check whether the orientation of the PV module is
abnormal.
If the communication cable between the hybrid inverter and the battery is not con-
nected correctly during the first installation, the battery may not work properly or
the parameter information of the battery may not be displayed on the inverter.
Please check the communication cable to ensure a correct connection.
103
10.2 Maintenance
10.2.1 Maintenance Notices
The DC switch can be secured with a lock in the OFF position or a certain angle beyond the
OFF position.（For countries “AU” and “NZ”）
Risk of inverter damage or personal injury due to incorrect service!
• Be sure to use special insulation tools when perform high-voltage operations.
• Before any service work, first disconnect the grid-side AC circuit breaker and
check the inverter status. If the inverter indicator is off, please wait until night to
disconnect the DC switch. If the inverter indicator is on, directly disconnect the
DC switch.
• After the inverter is powered off for 10 minutes, measure the voltage and cur-
rent with professional instrument. Only when there is no voltage nor current
can operators who wear protective equipment operate and maintain the inverter
• Even if the inverter is shut down, it may still be hot and cause burns. Wear pro-
tective gloves before operating the inverter after it cools down.
To prevent misuse or accidents caused by unrelated personnel: Post prominent

warning signs or demarcate safety warning areas around the inverter to prevent
accidents caused by misuse.
Restart the inverter only after removing the fault that impairs safety performance.
As the inverter contains no component parts that can be maintained, never open
the enclosure, or replace any internal components.
To avoid the risk of electric shock, do not perform any other maintenance opera-
tions beyond this manual. If necessary, contact SUNGROW for maintenance. Oth-
erwise, the losses caused is not covered by the warranty.
Touching the PCB or other static sensitive components may cause damage to the
device.
• Do not touch the circuit board unnecessarily.
• Observe the regulations to protect against electrostatic and wear an anti-static

wrist strap.
104
10.2.2 Routine Maintenance

Item Method Period
Check the temperature and dust of the Six months to a year
System clean inverter. Clean the inverter enclosure if (depending on the dust con-
necessary. tents in air)
Check whether all cable are firmly con-
nected in place.
Electrical 6 months after commissioning
Check whether there is damage to the
connection and then once or twice a year.
cables, especially the surface in con-
tact with metal.
• Visual check for any damage or de-

formation of the inverter.
General status • Check any abnormal noise during

the operation. Every 6 months
of the system
• Check each operation parameter.
• Be sure that nothing covers the

heat sink of the inverter.
105
11 Appendix
11.1 Technical Data

Parameter SH3.0RS SH3.6RS
Input (DC)
Recommended max. PV input
10000 Wp 10700 Wp
power
Max. PV input voltage 600 V
Min. operating PV voltage / Start-
40 V / 50 V
up input voltage
Rated PV input voltage 360 V
MPP voltage range 40 V - 560 V
No. of independent MPP inputs 2
Default No. of PV strings per
1
MPPT
Max. PV input current 32 A（16 A / 16 A)
Max. DC short-circuit current 40 A（20 A / 20 A)
Input / Output (AC)
Max. AC input power from grid 10000 VA 10700 VA
Rated AC output power 3000 W 3680 W
Max. AC output power 3000 VA 3680 VA
Rated AC output apparent power 3000 VA 3680 VA
Rated AC output current (at
13.1 A 16.0 A
230V)
Max. AC output current 13.7 A 16.0 A
Rated AC voltage 220 V / 230 V / 240 V
AC voltage range 154 V - 276 V
Rated grid frequency / Grid fre- 50Hz / 45 - 55Hz
quency range 60Hz / 55 - 65Hz
Harmonic (THD) < 3 % (of rated power)
> 0.99 at default value at rated power
Power factor at rated power / Ad-
(adj. 0.8 overexcited / leading to 0.8 underexcited /
justable power factor
lagging)
Feed-in phases / connection
1/1
phases
106
User Manual 11 Appendix

Efficiency
Max. efficiency / European
97.4% / 97.0% 97.5% / 97.1%
efficiency
Protection
Grid monitoring Yes
DC reverse polarity protection Yes
AC short circuit protection Yes
Leakage current protection Yes
Surge Protection DC Type II / AC Type II
DC switch (solar) Yes
DC fuse (battery) Yes
PID recovery function Yes
Battery input reverse polarity
Yes
protection
Battery Data
Battery type Li-ion battery
Battery voltage 80 V - 460 V
Max. charge / discharge current 30 A / 30 A
Max. charge / discharge power 6600 W
General Data
Dimensions (W x H x D) 490 mm x 340 mm x 170 mm
Weight 18.5 kg
Mounting method Wall-mounting bracket
Topology (Solar / Battery) Transformerless / Transformerless
Degree of protection IP65
Operating ambient temperature
-25℃ to 60℃
range
Allowable relative humidity range 0 - 100 %
Cooling method Natural convection
Max. operating altitude 4000 m
Display LED digital display, LED indicator
Communication RS485 / Ethernet / WLAN / CAN
DI / DO DI * 4 / DO * 1 / DRM
DC connection type MC4 (PV) / Sunclix（Battery）
AC connection type Plug and play
Country of manufacture China
Backup Data （on grid mode）
107
11 Appendix User Manual

Rated output power for backup
6000 W
load
Rated output current for backup
27.3 A
load
Backup Data（off-grid mode）
Rated voltage 220 V / 230 V / 240 V (±2 %)
Frequency range 50 Hz / 60 Hz (±0.2 %)
Total output THDv for linear load <2%
Switch time to emergency mode < 10 ms
Rated output power 3000 W / 3000 VA 3680 W / 3680 VA
Peak output power 8400 VA，10s
Parameter SH4.0RS SH5.0RS SH6.0RS

Input (DC)
Recommended max. PV
11000 Wp 12000 Wp 13000 Wp
input power
Max. PV input voltage 600 V
Min. operating PV voltage /
40 V / 50 V
Start-up input voltage
Rated PV input voltage 360 V
MPP voltage range 40 V - 560 V
No. of independent MPP
2
inputs
Default No. of PV strings
1
per MPPT
Max. PV input current 32 A（16 A / 16 A)
Max. DC short-circuit
40 A（20 A / 20 A)
current
Input / Output (AC)
Max. AC input power from
11000 VA 12000 VA 13000 VA
grid
4999 W for "AU",
Rated AC output power 4000 W 5000 W for 6000 W
others
4999 VA for "AU",
Max. AC output power 4000 VA 5000 VA for 6000 VA
others
108

4999 VA for "AU",
Rated AC output apparent
4000 VA 5000 VA for 6000 VA
power
others
Rated AC output current 21.7 A for "AU",
17.4 A 26.1 A
(at 230V) 21.8 A for others
21.7 A for "AU",
Max. AC output current 18.2 A 27.3 A
22.8 A for others
Rated AC voltage 220 V / 230 V / 240 V
AC voltage range 154 V - 276 V
Rated grid frequency / Grid 50Hz / 45 - 55Hz
frequency range 60Hz / 55 - 65Hz
Harmonic (THD) < 3 % (of rated power)
Power factor at rated
> 0.99 at default value at rated power
power / Ajustable power
(adj. 0.8 overexcited / leading-0.8 underexcited / lagging)
factor
Feed-in phases / connec-
1/1
tion phases
Efficiency
Max. efficiency / European
97.6% / 97.2% 97.7% / 97.3% 97.7% / 97.3%
efficiency
Protection
Grid monitoring Yes
DC reverse polarity
Yes
protection
AC short circuit protection Yes
Leakage current protection Yes
Surge protection DC Type II /AC Type II
DC switch (solar) Yes
DC fuse (battery) Yes
PID recovery Yes
Battery input reverse polar-
Yes
ity protection
Battery Data
Battery type Li-ion battery
Battery voltage 80 V - 460 V
Max. charge / discharge
30 A / 30 A
current
109
11 Appendix User Manual

Max. charge / discharge
6600 W
power
General Data
Dimensions (W x H x D) 490 mm x 340 mm x 170 mm
Weight 18.5 kg
Mounting method Wall-mounting bracket
Topology (solar / battery) Transformerless / Transformerless
Degree of protection IP65
Operating ambient temper-
-25℃ to 60℃
ature range
Allowable relative humidity
0 - 100 %
range
Cooling method Natural convection
Max. operating altitude 4000 m
Display LED digital display, LED indicator
Communication RS485 / Ethernet / WLAN / CAN
DI / DO DI * 4 / DO * 1 / DRM
DC connection type MC4 (PV) / Sunclix（Battery）
AC connection type Plug and play
Country of manufacture China
Backup Data （on grid mode）
Rated output power for
6000 W
backup load
Rated output current for
27.3 A
backup load
Backup Data （off-grid mode）
Rated voltage 220 V / 230 V / 240 V (±2 %)
Frequency range 50 Hz / 60 Hz (±0.2 %)
Total output THDv for line-
<2%
ar load
Switch time to emergency
< 10ms
mode
5000 W / 5000 6000 W / 6000
Rated output power 4000 W / 4000 VA
VA VA
Peak output power 8400VA，10s
110
11.2 Quality Assurance
When product faults occur during the warranty period, SUNGROW will provide free service
or replace the product with a new one.
Evidence
During the warranty period, the customer shall provide the product purchase invoice and
date. In addition, the trademark on the product shall be undamaged and legible. Otherwise,
SUNGROW has the right to refuse to honor the quality guarantee.
Conditions
• After replacement, unqualified products shall be processed by SUNGROW.
• The customer shall give SUNGROW a reasonable period to repair the faulty device.
Exclusion of Liability
In the following circumstances, SUNGROW has the right to refuse to honor the quality
guarantee:
• The free warranty period for the whole machine/components has expired.
• The device is damaged during transport.
• The device is incorrectly installed, refitted, or used.
• The device operates in harsh conditions beyond those described in this manual.
• The fault or damage is caused by installation, repairs, modification, or disassembly per-

formed by a service provider or personnel not from SUNGROW.
• The fault or damage is caused by the use of non-standard or non-SUNGROW compo-

nents or software.
• The installation and use range are beyond stipulations of relevant international
standards.
• The damage is caused by unexpected natural factors.
For faulty products in any of above cases, if the customer requests maintenance, paid main-
tenance service may be provided based on the judgment of SUNGROW.
11.3 Contact Information
In case of questions about this product, please contact us.

We need the following information to provide you the best assistance:
• Model of the device
• Serial number of the device
• Fault code/name
• Brief description of the problem
For detailed contact information, please visit: https://en.sungrowpower.com/contactUS.
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User Manual

1-phase Hybrid Inverter

All Rights Reserved

• It is prohibited to use data contained in firmware or software developed by SUNGROW,

• It is prohibited to perform reverse engineering, cracking, or any other operations that

It will be referred to as "inverter" hereinafter unless otherwise specified.

“NOTE” indicates additional information, emphasized contents or tips that may be

• Injury or death to the operator or a third party.

• Damage to the product and other properties.

1.1 Unpacking and Inspection

Check all safety signs, warning labels and nameplates on devices.

1.2 Installation Safety

Make sure there is no electrical connection before installation.

Improper installation may cause personal injury!

• If the product supports hoisting transport and is hoisted by hoisting tools, no

1.3 Electrical Connection Safety

• Operators must wear proper personal protective equipment during electrical

• Respect all safety instructions listed in relevant documents about PV strings.

Danger to life due to a high voltage inside the inverter!

• Be sure to use special insulation tools during cable connections.

• Electrical connection must be performed by professionals.

1.4 Operation Safety

• When the inverter is running, do not touch its enclosure.

1.5 Maintenance Safety

Risk of inverter damage or personal injury due to incorrect service!

To prevent misuse or accidents caused by unrelated personnel: Post prominent

1.6 Disposal Safety

2.1 System Introduction

The inverter is a transformerless 1-phase hybrid inverter. As an integral component in the

• The utility grid must be a TN system for the off-grid application.

• The inverter applies only to the scenarios described in this manual.

2.2 Product Introduction

figure 2-1 Inverter Appearance

No. Name Description

No. Name Description

figure 2-2 Dimensions of the Inverter

Inverter Model W (mm) H (mm) D (mm)

SH3.0RS / SH3.6RS / SH4.0RS / SH5.0RS

2.3 Symbols on the Product

Parameters on the PV side.

Parameters on the battery side.

Parameters on the AC on-grid side.

Parameters on the AC backup side.

Regulatory compliance mark.

TÜV mark of conformity.

UKCA mark of conformity.

The inverter does not have a transformer.

Do not dispose of the inverter together with household waste.

Read the user manual before maintenance!

Danger to life due to high voltages!

Additional grounding point.

2.4 LED Panel

figure 2-3 LED Panel

(a) Normal state (b) Error state

No. Name Description

No. Name Description

table 2-1 State description of the LED indicator

LED color State Definition

The inverter is at standby or startup state (not