Sungrow SH5.0RT User manual

User Manual
3-Phase Hybrid Inverter
SH5.0RT / SH6.0RT / SH8.0RT / SH10RT
SH5.0_6.0_8.0_10RT-UEN-Ver16-202106
WWW.SUNGROWPOWER.COM

I
All Rights Reserved
AAllll RRiigghhttss RReesseerrvveedd
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").
TTrraaddeemmaarrkkss
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.
SSooffttwwaarree LLiicceennsseess
•It is prohibited to use data contained in firmware or software developed by SUN-
GROW, 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.

II
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. The reader can get additional information about other de-
vices at wwwwww..ssuunnggrroowwppoowweerr..ccoomm or on the webpage of the respective component
manufacturer.
VVaalliiddiittyy
This manual is valid for the following inverter models:
•SH5.0RT
•SH6.0RT
•SH8.0RT
•SH10RT
They will be referred to as "inverter" hereinafter unless otherwise specified.
TTaarrggeett GGrroouupp
This manual is intended for inverter owners who will have the ability to interact with the
inverter and qualified personnel who are responsible for the installation and commis-
sioning of the inverter. Qualified personnel should have the following skills:
•Training for installation and commissioning of electrical system, as well as dealing
with hazards
•Knowledge of the manual and other related documents
•Knowledge of the local regulations and directives
HHooww ttoo UUssee TThhiiss MMaannuuaall
Read the manual and other related documents before performing any work on the inver-
ter. Documents must be stored carefully and be available at all times.
Contents may be periodically updated or revised due to the product development. The
manual content of subsequent versions of the inverter may be subject to change. The
latest manual can be found at ssuuppppoorrtt..ssuunnggrroowwppoowweerr..ccoomm.
SSyymmbboollss
Important instructions contained in this manual should be followed during installation,
operation and maintenance of the inverter. They will be highlighted by the following
symbols.
Indicates a hazard with a high level of risk that, if not avoided, will result in death
or serious injury.

III
Indicates a hazard with a medium level of risk that, if not avoided, could result in
death or serious injury.
Indicates a hazard with a low level of risk that, if not avoided, could result in mi-
nor or moderate injury.
Indicates a situation that, if not avoided, could result in equipment or property
damage.
Indicates additional information, emphasized contents or tips that may be
helpful, e.g. to help you solve problems or save time.

V
CCoonntteennttss
All Rights Reserved.....................................................................................................I
About This Manual.....................................................................................................II
1 Safety .............................................................................................................. 1
1.1 PV Panels..................................................................................................... 1
1.2 Utility Grid .................................................................................................... 1
1.3 Inverter ........................................................................................................ 2
1.4 Batteries ...................................................................................................... 3
2 Product Description .................................................................................... 4
2.1 System Introduction ..................................................................................... 4
2.2 Product Introduction..................................................................................... 4
2.3 Symbols on the Product ............................................................................... 6
2.4 LED Indicator ............................................................................................... 7
2.5 DC Switch.................................................................................................... 7
2.6 PV Energy Storage System (PV ESS)............................................................ 8
2.6.1 PV ESS Introduction............................................................................ 8
2.6.2 Declaration For Back-Up Function ...................................................... 9
2.6.3 Energy Management.......................................................................... 9
2.7 Parallel System .......................................................................................... 11
2.8 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.............................................. 17
3.2.5 Reactive Power Regulation ............................................................... 17
3.2.6 Load Control..................................................................................... 17
3.3 Battery Management.................................................................................. 17

VI
3.3.1 Charge Management........................................................................ 19
3.3.2 Discharge Management ................................................................... 20
3.4 Communication and Configuration ............................................................. 21
4 Unpacking and Storage ........................................................................... 22
4.1 Unpacking and Inspection.......................................................................... 22
4.2 Scope of Delivery....................................................................................... 23
4.3 Inverter Storage ......................................................................................... 24
5 Mechanical Mounting .............................................................................. 25
5.1 Safety during Mounting .............................................................................. 25
5.2 Location Requirements .............................................................................. 25
5.2.1 Environment Requirements............................................................... 25
5.2.2 Carrier Requirements........................................................................ 26
5.2.3 Angle Requirements ......................................................................... 26
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................................................................................... 31
6.3 Electrical Connection Overview .................................................................. 33
6.4 Additional Grounding Connection ............................................................... 37
6.4.1 Additional Grounding Requirements.................................................. 37
6.4.2 Connection Procedure...................................................................... 37
6.5 AC Cable Connection ................................................................................. 38
6.5.1 AC Side Requirements...................................................................... 38
6.5.2 Assembling the AC Connector .......................................................... 39
6.5.3 Installing the AC Connector............................................................... 41
6.6 DC Cable Connection................................................................................. 43
6.6.1 PV Input Configuration...................................................................... 44
6.6.2 Assembling the PV Connectors ......................................................... 45
6.6.3 Installing the PV Connector ............................................................... 46
6.7 Communication Connection ....................................................................... 48
6.7.1 Ethernet Connection......................................................................... 48
6.7.2 WiNet-S Connection......................................................................... 50
6.7.3 RS485 Connection ........................................................................... 53

VII
6.8 Smart Energy Meter Connection................................................................. 56
6.9 Battery Connection..................................................................................... 57
6.9.1 Connecting the Power Cable............................................................. 57
6.9.2 Connecting the CAN Cable ............................................................... 59
6.9.3 Connecting the Enable Cable............................................................ 59
6.10 DO Connection......................................................................................... 60
6.11 DI Connection .......................................................................................... 61
6.11.1 Assembling the COM Connector..................................................... 62
6.11.2 Installing the COM Connector ......................................................... 64
6.12 Backup Connection.................................................................................. 65
7 Commissioning ........................................................................................... 67
7.1 Inspection before Commissioning............................................................... 67
7.2 Commissioning Procedure ......................................................................... 67
7.3 App Preparation......................................................................................... 68
7.4 Creating a Plant.......................................................................................... 68
7.5 Initializing the Device.................................................................................. 71
7.6 Configuring the Plant.................................................................................. 72
8 iSolarCloud App ......................................................................................... 77
8.1 Brief Introduction........................................................................................ 77
8.2 Installing the App........................................................................................ 77
8.3 Account Registration.................................................................................. 78
8.4 Login ......................................................................................................... 79
8.4.1 Requirements................................................................................... 79
8.4.2 Login Procedure............................................................................... 79
8.5 Initial Settings............................................................................................. 81
8.5.1 Feed-in Limitation............................................................................. 81
8.5.2 Off-grid Mode .................................................................................. 81
8.5.3 Reactive Power Regulation Mode ..................................................... 81
8.6 Function Overview ..................................................................................... 84
8.7 Home......................................................................................................... 85
8.8 Run Information ......................................................................................... 86
8.9 Records ..................................................................................................... 86
8.9.1 Chart................................................................................................ 87
8.9.2 Fault Alarm Record........................................................................... 88
8.10 More........................................................................................................ 88
8.10.1 System Parameters ........................................................................ 89

VIII
8.10.2 Running Time ................................................................................. 90
8.10.3 Regular Parameters........................................................................ 90
8.10.4 Off-grid Parameters........................................................................ 91
8.10.5 Active Power Regulation ................................................................. 91
8.10.6 Reactive Power Regulation ............................................................. 92
8.10.7 Battery Discharge Time................................................................... 92
8.10.8 Battery Forced Charge Time ........................................................... 93
8.10.9 Load Control................................................................................... 93
8.10.10 Communication Parameters ......................................................... 95
8.10.11 Firmware Update.......................................................................... 96
8.10.12 Grounding Detection .................................................................... 97
8.10.13 Parallel Configuration.................................................................... 97
8.10.14 Frequency Shift Power Control ..................................................... 98
9 System Decommissioning ...................................................................... 99
9.1 Decommissioning the Inverter .................................................................... 99
9.1.1 Disconnecting the Inverter ................................................................ 99
9.1.2 Dismantling the Inverter .................................................................. 100
9.1.3 Disposal of the Inverter ................................................................... 100
9.2 Decommissioning the Battery................................................................... 101
10 Troubleshooting and Maintenance ................................................. 102
10.1 Troubleshooting ..................................................................................... 102
10.2 Maintenance.......................................................................................... 108
10.2.1 Maintenance Notices.................................................................... 108
10.2.2 Routine Maintenance.................................................................... 109
10.2.3 Replacing the Button Cell.............................................................. 109
11 Appendix .................................................................................................. 110
11.1 Technical Data ....................................................................................... 110
11.2 The Compatibility for Backup under Off-grid Scenario............................. 115
11.3 Quality Assurance .................................................................................. 116
11.4 Contact Information ............................................................................... 116

1
1Safety
The device has been designed and tested strictly according to international safety regu-
lations. Read all safety instructions carefully prior to any work and observe them at all
times when working on or with the device.
Incorrect operation or work may cause:
•Injury or death to the operator or a third party;
•Damage to the device and other properties.
All detailed work-related safety warnings and notes are specified at critical points in this
manual.
The safety instructions in this manual cannot cover all the precautions that
should be followed. Perform operations considering actual onsite conditions.
SUNGROW shall not be held liable for any damage caused by violation of the
safety instructions in this manual.
1.1 PV Panels
PV strings will produce electrical power when exposed to sunlight and can
cause a lethal voltage and an electric shock.
•Always keep in mind that the inverter is dual power supplied. Electrical oper-
ators must wear proper personal protective equipment: helmet, insulated
footwear, gloves, etc.
•Before touching the DC cables, operator must use a measuring device to en-
sure that the cable is voltage-free.
•The opeator must follow all warnings on the PV strings and in its manual.
1.2 Utility Grid
Follow the regulations related to the utility grid.

2
All electrical connections must be in accordance with local and national
standards.
Only with the permission of the local utility grid company, the inverter can be
connected to the utility grid.
1.3 Inverter
Danger to life from electric shocks due to live voltage
Do not open the enclosure at any time. Unauthorized opening will void warranty
and warranty claims and in most cases terminate the operating license.
Risk of inverter damage or personal injury
•Do not connect or disconnect the PV, battery and AC connectors when the
inverter is running.
•Wait at least 10 minutes for the internal capacitors to discharge after all
electric devices are removed and the inverter is powered off.
•Ensure that there is no voltage or current before connecting or disconnecting
the PV， battery and AC connectors.
All safety instructions, warning labels, and nameplate on the inverter:
•Must be clearly legible.
•Should not be removed or covered.
Risk of burns due to hot components!
Do not touch any hot parts (such as the heat sink) during operation. Only the DC
switch can safely be touched at any time.
1 Safety User Manual

3
Only qualified personnel can perform the country setting. Unauthorized altera-
tion may cause a breach of the type-certificate marking.
Risk of inverter damage due to electrostatic discharge (ESD)!
By touching the electronic components, you may damage the inverter. For in-
verter handling, be sure to:
•avoid any unnecessary touching;
•wear a grounding wristband before touching any connectors.
1.4 Batteries
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
inverter are touched.
Improper settings or maintenance can permanently damage the battery.
Incorrect inverter parameters will lead to the premature aging of battery.
User Manual 1 Safety

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2Product Description
2.1 System Introduction
•The inverter must only be operated with PV strings with class II protection in
accordance with IEC 61730, application class A. It is not allowed for the posi-
tive 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
covered by warranty.
•Any use other than the one described in this document is not permitted.
For the TT utility grid, the N line voltage to ground must be 30 V or less.
The three-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 energy flow so as to increase the self-consumption of the system.
2.2 Product Introduction
MMooddeell DDeessccrriippttiioonn
The model description is as follows (take SH10RT as an example):
AAppppeeaarraannccee
The image shown here is for reference only. The actual product received may differ.

5
ffiigguurree 22--11 Inverter Appearance
NNoo.. NNaammee DDeessccrriippttiioonn
1LED indicator panel Indicates the current working state of the inverter.
2 DC switch Used to safely disconnect the DC circuit.
3Electrical connec-
tion area
Includes DC terminals, AC terminals, battery termi-
nals, communication terminals and additional
grounding terminal.
4Hanger Used to hang the inverter on the wall-mounting
bracket.
DDiimmeennssiioonnss
The following figure shows the dimensions of the inverter.
User Manual 2 Product Description

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ffiigguurree 22--22 Dimensions of the Inverter
WW ((mmmm)) HH ((mmmm)) DD ((mmmm)) WWeeiigghhtt ((kkgg))
460 540 170 27
2.3 Symbols on the Product
SSyymmbbooll EExxppllaannaattiioonn
RCM mark of conformity.
TÜV mark of conformity.
CE mark of conformity.
Do not dispose of the inverter together with household waste.
The inverter does not have a transformer.
Disconnect the inverter from all the external power sources
before maintenance!
Read the user manual before maintenance!
Burn danger due to hot surface that may exceed 60℃.
2 Product Description User Manual

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SSyymmbbooll EExxppllaannaattiioonn
Danger to life due to high voltages!
Only qualified personnel can open and service the inverter.
Do not touch live parts for 10 minutes after disconnection
from the power sources.
Additional grounding point.
2.4 LED Indicator
The LED indicator on the front of the inverter indicates the working state of the inverter.
table 2-1 LED indicator description
LLEEDD iinnddiiccaattoorr LLEEDD ssttaattee DDeeffiinniittiioonn
Blue
ON The inverter is running in the on/off-grid
mode.
Twinkling The inverter is at standby or startup state
(without on/off-grid operation).
Red
ON A system fault has occurred.
Gray
OFF Both the AC and DC sides are powered
down.
2.5 DC Switch
The DC switch is used to safely disconnect the DC cirrcuit 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.
Turn the DC switch to the “ON” position before restarting the inverter.
User Manual 2 Product Description

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2.6 PV Energy Storage System (PV ESS)
2.6.1 PV ESS Introduction
By directly connecting a battery module to the inverter, the conventional PV system can
be upgraded to be an Energy Storage System (ESS).
The system is capable of operating off-grid to ensure an emergency power supply for
protected loads in the event of a grid interruption or blackout, which may be caused by:
•islanding;
•under-voltage;
•under-frequency or over-frequency.
•Under any connection, either grid-connection or off-grid application, please
be sure that the potential voltage between N and PE line is not higher than
30V, otherwise, inverter will stop generating power.
•The system is not suitable for supplying life-sustaining medical devices. It
cannot guarantee backup power in all circumstances.
ffiigguurree 22--33 PV Energy Storage System (PV ESS)
table 2-2 System Compositions
IItteemm DDeessccrriippttiioonn RReemmaarrkk
APV strings
Compatible with monocrystalline silicon, poly-
crystalline silicon, and thin-film without
grounding.
B Inverter SH5.0RT / SH6.0RT / SH8.0RT / SH10RT
CThree-phase Smart
Energy Meter
Measures the export power and communicates
with the inverter via the RS485 port.
DUtility grid Grid grounding system types: TT, TN
EBattery (optional) A Li-ion battery
2 Product Description User Manual

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IItteemm DDeessccrriippttiioonn RReemmaarrkk
FBackup loads Protected house loads directly connected to the
inverter.
G Normal Loads Non protected house loads, they will disconnect
in case of grid failure.
2.6.2 Declaration For Back-Up Function
The following statement involves SUNGROW general policies about the hybrid inverters
described in this document.
1 For hybrid inverters, the electrical installation typically includes connection of the in-
verter 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 ter-
minated. 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 20 ms. However, some external
factors 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
non-frequency conversion air conditioning, vacuum cleaner or half-wave loads such
as hair dryer, heat gun, hammer drill. Refer to "11.2 The Compatibility for Backup
under Off-grid Scenario"for recommended loads.
•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.
DDeeccllaarraattiioonn FFoorr BBaacckk--UUpp OOvveerrllooaadd PPrrootteeccttiioonn
The inverter will restart in case of overload protection. The time required for restarting
will increase (5 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.
2.6.3 Energy Management
The battery discharges to provide energy to loads. If the battery is empty or there is not
enough power from the battery system, the grid shall supply the power, first to Backup
loads, then normal loads.
When the grid is present, the bypass function of the hybrid inverter is activated and the
Backup loads will be directly connected to the grid via the bypass switch integrated in
the inverter.
User Manual 2 Product Description

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If the Smart Energy Meter is abnormal or not equipped, the inverter will run normally,
however, the battery can be charged but not allowed to discharge. In this case the feed-
in power setting will be ineffective, and the DO function for optimized mode will be
disabled.
EEnneerrggyy MMaannaaggeemmeenntt dduurriinngg DDaayyttiimmee
The energy management system (EMS) works in self-consumption mode by default.
•Scenario 1: PV power generation ≥ Load power consumption
– First，PV power will go to Backup loads first, then normal loads and the battery.
– Moreover，If the battery is fully charged, the excess will go to the grid. The feed-
in power will not surpass the feed-in limitation value in initial settings.
•Scenario 2: PV power generation ＜ Load power consumption
– First，battery will discharge and provide the energy missing.
– Moreover，inverter will draw power from the mains if the power from the PV and
battery is less than the load power.
With current No current
EEnneerrggyy MMaannaaggeemmeenntt dduurriinngg NNiigghhtt
During night, with energy available, the battery will discharge to supply power for loads.
Alternatively, the grid will supply power for the loads in case the discharge power of the
battery is insufficient.
2 Product Description User Manual