Sungrow SH3K6-30 User manual

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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 Power Supply Co., Ltd.
All other trademarks or registered trademarks mentioned in this document are owned
by their respective owners.
SSooffttwwaarree LLiicceennsseess
•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.
Sungrow Power Supply Co., Ltd.
Address: NNoo..11669999 XXiiyyoouu RRdd..,, NNeeww && HHiigghh TTeecchh ZZoonnee,, HHeeffeeii,, 223300008888,, CChhiinnaa..
Email: iinnffoo@@ssuunnggrrooww..ccnn
Tel: [phone]
Website: wwwwww..ssuunnggrroowwppoowweerr..ccoomm

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About This Manual
The manual mainly describes the product information, guidelines for installation,
operation and maintenance. The manual cannot include complete information about the
photovoltaic (PV) system. The reader can get additional information about other devices
at wwwwww.. ssuunnggrroowwppoowweerr.. ccoomm or on the webpage of the respective component
manufacturer.
VVaalliiddiittyy
This manual is valid for the following inverter models:
•SH3K6-30
•SH4K6-30
•SH5K-30
They will be referred to as "inverter" hereinafter unless otherwise specified.
TTaarrggeett GGrroouupp
This manual is intended for:
•qualified personnel who are responsible for the installation and commissioning of the
inverter; and
•inverter owners who will have the ability to interact with the inverter.
HHooww ttoo UUssee TThhiiss MMaannuuaall
Read the manual and other related documents before performing any work on the
inverter. Documents must be stored carefully and be available at all times.
Contents may be periodically updated or revised due to the product development. It is
probably that there are changes of manual in the subsequent inverter edition. The latest
manual can be acquired via visiting the website 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.
SSyymmbbooll EExxppllaannaattiioonn
Indicates a hazard with a high level of risk that, if not avoided, will
result in death or serious injury.
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 minor or moderate injury.

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SSyymmbbooll EExxppllaannaattiioonn
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.

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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 Battery ......................................................................................................... 3
1.5 Skills of Qualified Personnel.......................................................................... 4
2 System Solution ........................................................................................... 5
2.1 Product Introduction..................................................................................... 5
2.1.1 Model Description............................................................................... 5
2.1.2 Appearance........................................................................................ 5
2.1.3 Dimensions ........................................................................................ 6
2.1.4 LCD Panel .......................................................................................... 7
2.2 PV Energy Storage System (PV ESS)............................................................ 8
2.3 Retrofitting the Existing PV System ............................................................. 11
3 Function Description ................................................................................ 13
3.1 Safety Function.......................................................................................... 13
3.1.1 Protection......................................................................................... 13
3.1.2 Earth Fault Alarm.............................................................................. 13
3.1.3 SPI and Auto Test ("IT")..................................................................... 13
3.2 Energy Conversion and Management......................................................... 13
3.2.1 Power Derating................................................................................. 14
3.2.2 DRM ("AU"/"NZ").............................................................................. 15
3.2.3 Regular Operational Voltage Range .................................................. 16
3.2.4 Regular Operational Frequency Range.............................................. 18
3.2.5 Reactive Power Regulation ............................................................... 20
3.2.6 Active Power Response.................................................................... 20
3.2.7 Load Control..................................................................................... 21
3.3 Battery Management.................................................................................. 21
3.3.1 Charge Management........................................................................ 22

VI
3.3.2 Discharge Management ................................................................... 24
3.3.3 Maintenance Management............................................................... 24
3.4 Communication and Configuration ............................................................. 24
4 Unpacking and Storage ........................................................................... 25
4.1 Unpacking and Inspection.......................................................................... 25
4.2 Identifying the Inverter................................................................................ 25
4.3 Scope of Delivery....................................................................................... 26
4.4 Inverter Storage ......................................................................................... 28
5 Mechanical Mounting .............................................................................. 30
5.1 Safety during Mounting .............................................................................. 30
5.2 Location Requirements .............................................................................. 30
5.2.1 Installation Environment Requirements ............................................. 30
5.2.2 Carrier Requirements........................................................................ 31
5.2.3 Installation Angle Requirements ........................................................ 31
5.2.4 Installation Clearance Requirements ................................................. 31
5.3 Installation Tools......................................................................................... 32
5.4 Moving the Inverter .................................................................................... 33
5.5 Installing the Inverter .................................................................................. 33
6 Electrical Connection ............................................................................... 35
6.1 Safety Instructions...................................................................................... 35
6.2 Terminal Description................................................................................... 36
6.3 Electrical Connection Overview .................................................................. 38
6.4 Additional Grounding Connection ............................................................... 39
6.4.1 Additional Grounding Requirements.................................................. 40
6.4.2 Connection Procedure...................................................................... 40
6.5 AC Cable Connection ................................................................................. 41
6.5.1 AC Side Requirements...................................................................... 41
6.5.2 Assembling the AC Connector .......................................................... 41
6.5.3 Installing the AC Connector............................................................... 43
6.6 DC Cable Connection................................................................................. 44
6.6.1 PV Input Configuration...................................................................... 44
6.6.2 DC Side Requirements...................................................................... 45
6.6.3 Assembling the PV Connectors ......................................................... 46
6.6.4 Installing the PV Connectors ............................................................. 47
6.7 Communication Connection ....................................................................... 48
6.7.1 Ethernet Connection......................................................................... 49

VII
6.7.2 WLAN Connection............................................................................ 51
6.7.3 RS485 Connection ........................................................................... 51
6.8 Smart Energy Meter Connection................................................................. 53
6.9 Battery Connection..................................................................................... 56
6.9.1 Connecting the Power Cable............................................................. 56
6.9.2 Connecting the CAN Cable ............................................................... 58
6.10 Emergency Load Connection (Backup) .................................................... 59
6.11 DO Connection......................................................................................... 61
6.12 DRM/SPI Connection ............................................................................... 63
6.12.1 DRM Connection ("AU"/"NZ") ......................................................... 63
6.12.2 SPI Connection ("IT") ...................................................................... 65
7 Commissioning ........................................................................................... 69
7.1 Inspection before Commissioning............................................................... 69
7.2 Button Introduction..................................................................................... 69
7.3 Powering on the System............................................................................. 70
7.4 LCD Initial Settings ..................................................................................... 71
7.4.1 Setting the Country ........................................................................... 71
7.4.2 Adding the Existing Inverter............................................................... 74
7.4.3 Setting Feed-in Power ...................................................................... 75
7.4.4 Setting System Time......................................................................... 75
7.4.5 Setting Backup Function................................................................... 75
7.4.6 Setting Reactive Power Regulation ("DE") ......................................... 76
7.4.7 Initializing.......................................................................................... 76
7.5 Result Verification....................................................................................... 77
7.5.1 Energy Meter Installation and Connection ......................................... 77
7.5.2 Battery Information ........................................................................... 79
7.5.3 System Time..................................................................................... 80
8 System Decommissioning ...................................................................... 81
8.1 Decommissioning the Inverter .................................................................... 81
8.1.1 Disconnecting the Inverter ................................................................ 81
8.1.2 Dismantling the Inverter .................................................................... 82
8.1.3 Disposal of the Inverter ..................................................................... 82
8.2 Decommissioning the Battery..................................................................... 82
9 Troubleshooting and Maintenance ...................................................... 84
9.1 Troubleshooting ......................................................................................... 84
9.1.1 Troubleshooting of the LED Indicator ................................................ 84

VIII
9.1.2 Troubleshooting of the Errors............................................................ 84
9.2 Maintenance.............................................................................................. 97
9.2.1 Maintenance .................................................................................... 98
9.2.2 Replacing the Button Battery............................................................. 98
10 Appendix II:: LCD Operation ................................................................ 100
10.1 Main Screen........................................................................................... 100
10.2 LCD Menu.............................................................................................. 101
10.3 Starting and Stopping the Inverter .......................................................... 103
10.4 Advanced Settings................................................................................. 104
10.4.1 Inputting Password....................................................................... 104
10.4.2 Setting Backup Function............................................................... 104
10.4.3 Adding the Existing Inverter .......................................................... 105
10.4.4 Setting Feed-in Power .................................................................. 105
10.4.5 Setting Battery Type...................................................................... 105
10.4.6 Setting Battery Usage Time........................................................... 106
10.4.7 Setting Forced Charge.................................................................. 107
10.4.8 Setting the Protective Parameters................................................. 107
10.4.9 Setting Reactive Power Regulation................................................ 110
10.4.10 Setting Active Power Response .................................................. 110
10.4.11 Setting Limit Power Ramp........................................................... 110
10.4.12 Setting DO Function.................................................................... 110
10.4.13 Setting the Communication Parameters ...................................... 113
10.4.14 DRM Switch Setting.................................................................... 113
10.4.15 Factory Reset ............................................................................. 113
10.4.16 Multiple Parallel Setting............................................................... 114
10.5 Setting System Time .............................................................................. 114
10.6 Setting the Country................................................................................. 114
10.7 Viewing the Error Codes......................................................................... 116
10.7.1 Viewing Active Error...................................................................... 116
10.7.2 Viewing Error Record.................................................................... 117
10.8 Self-test (Italy)........................................................................................ 117
11 Appendix II: Reactive Power Regulation ........................................ 120
11.1 "PF" mode ............................................................................................. 120
11.2 "Qt" mode .............................................................................................. 120
11.3 "Q(P)" Mode........................................................................................... 120
11.3.1 For Countries "IT" and "TH" ........................................................... 121

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11.3.2 For Countries except "IT" and "TH"................................................ 122
11.4 "Q(U)" Mode .......................................................................................... 123
11.4.1 For Countries "IT" and "TH" ........................................................... 123
11.4.2 For Countries except "IT" and "TH"................................................ 124
12 Appendix III: Active Power Response ............................................. 127
12.1 Volt-watt Response................................................................................ 127
12.1.1 For the Country "IT" ...................................................................... 127
12.1.2 For Countries "AU" and "NZ"......................................................... 127
12.2 Frq-Watt Response................................................................................ 128
12.2.1 For the Country "IT" ...................................................................... 129
12.2.2 For Countries except "IT" .............................................................. 131
12.3 Volt-watt Response (Charging)............................................................... 132
13 Appendix IV: Technical Data .............................................................. 135
13.1 Inverter .................................................................................................. 135
13.2 Meter..................................................................................................... 138
13.3 Quality Assurance .................................................................................. 138
13.4 Contact Information ............................................................................... 139

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1Safety
The inverter has been designed and tested strictly according to international safety
regulations. Read all safety instructions carefully prior to any work and observe them at
all times when working on or with the inverter.
Incorrect operation or work may cause:
•injury or death to the operator or a third party;
•damage to the inverter and other properties.
All detailed work-related safety warnings and notes will be 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 multiple power supplied. Electrical
operators must wear proper personal protective equipment: helmet,
insulated footwear, gloves, etc.
•Before touching the DC cables, operator must use a measuring device to
ensure that the cable is voltage-free.
•The operator must follow all warnings on the PV strings and in its manual.
1.2 Utility Grid
Follow the regulations related to the utility grid.

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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 when the inverter is running. 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 disconnect the PV connectors or battery connectors when the
inverter is running.
•Wait at least 10 minutes for the internal capacitors to discharge after the
battery is powered off. Ensure that there is no voltage or current before
disconnecting any 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

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Only qualified personnel can perform the country setting. Unauthorized
alteration 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
inverter handling, be sure to:
•avoid any unnecessary touching;
•wear a grounding wristband before touching any connectors.
WWaarrnniinngg LLaabbeell
LLaabbeell DDeessccrriippttiioonn
Disconnect the inverter from all the external power sources
before maintenance!
Do not touch live parts for 10 minutes after disconnection
from the power sources.
Burn danger due to hot surface that may exceed 60°C.
Danger to life due to high voltages!
Only qualified personnel can open and maintain the inverter.
Read the user manual before maintenance!
1.4 Battery
Batteries deliver electrical 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.
User Manual 1 Safety

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Provide sufficient ventilation for the battery system to prevent flames and
sparks from the explosive hydrogen gas that the batteries release.
Due to the dangers of hydrogen gas and battery electrolyte:
•locate batteries in a designated area, complying with the local regulations;
•protect the enclosure against destruction;
•do not open or deform the battery;
•whenever working on the battery, wear suitable personal protective
equipment (PPE) such as rubber gloves, rubber boots and goggles;
•rinse acid splashes thoroughly with clear water for a long time and consider
consulting a doctor.
Improper settings or maintenance can permanently damage the battery.
Incorrect inverter parameters will lead to the premature aging of battery.
1.5 Skills of Qualified Personnel
All installations must be performed by qualified personnel who should have:
•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
1 Safety User Manual

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2System Solution
•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
positive pole or the negative pole of the PV strings or battery 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.
The single-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.
2.1 Product Introduction
2.1.1 Model Description
The device model description is as follows:
Table 2-1 Power Level Description
MMooddeell NNoommiinnaall OOuuttppuutt PPoowweerr NNoommiinnaall GGrriidd VVoollttaaggee
SH3K6-30 3680 W
220 Vac / 230 Vac / 240 Vac
(single phase)
SH4K6-30 4600 W
SH5K-30 4990 W (AS4777)
5000 W (not AS4777)
2.1.2 Appearance
The following figure shows the inverter appearance.

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FFiigguurree 22--11 Inverter Appearance
*The image shown here is for reference only. The actual product you receive may differ.
NNoo.. NNaammee DDeessccrriippttiioonn
1Grid terminal To feed power into the utility grid.
The emergency loads also can be supplied from the grid.
2 Backup terminal To connect emergency loads.
3 PV terminals Positive and negative PV input connectors (two pairs).
4DC switch To safely disconnect the DC circuit.
5Communication
terminals
RS485, Ethernet, CAN, DO, DRM and SPI.
6 Wi-Fi terminal To connect the Wi-Fi module.
7 Battery connection BAT+ and BAT-.
8Additional
grounding terminal
For reliable grounding.
9LCD panel To indicate the current working state of the inverter or
change inverter settings.
10 Nameplate Clearly identify the product, including the SN, password,
technical data, certifications, etc.
2.1.3 Dimensions
The following figure shows the dimensions of the inverter.
2 System Solution User Manual

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FFiigguurree 22--22 Dimensions (unit: mm)
*The image shown here is for reference only. The actual product you receive may differ.
2.1.4 LCD Panel
The LCD panel with an indicator and four buttons is on the front of the inverter.
FFiigguurree 22--33 LCD Panel
NNoo.. NNaammee DDeessccrriippttiioonn
1 Screen To display the information.
2 Indicator
To indicate the current working state of the inverter.
For detailed definition, see "Table 7-6 State Descriptions of the
LED Indicator".
3 Buttons To view information and set parameters.
For detailed functions, see "Table 7-1 Button Functions".
User Manual 2 System Solution

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2.2 PV Energy Storage System (PV ESS)
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;
•undervoltage or overvoltage;
•underfrequency or overfrequency.
The error codes will be displayed on the LCD screen.
•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
cannot guarantee backup power in all circumstances.
FFiigguurree 22--44 Inverter Application in PV Energy Storage System (PV ESS)
Table 2-2 System Compositions
IItteemm DDeessccrriippttiioonn RReemmaarrkkss
APV strings
Compatible with monocrystalline silicon,
polycrystalline silicon, and thin-film without
grounding.
B Inverter SH3K6-30 / SH4K6-30 / SH5K-30.
C
Smart Energy Meter
(single-phase for
example)
Measures the feed-in power and communicates
with the inverter via the RS485 port.
DUtility grid Grid grounding system types: TT, TN.
2 System Solution User Manual