Sungrow SH3K6-30 User manual

SH3.6_4.6_5K-30-UEN-Ver11-201908 Version：1.1
User Manual
SH3K6 / SH4K6 /
SH5K-30
Grid-Connected
Hybrid Inverter

I
About This Manual
Applicability
This manual is applicable to the following inverter type:
SH3K6-30
SH4K6-30
SH5K-30
They will be referred to as “inverter” hereinafter unless otherwise specified.
Target Group
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 via the
LCD operation.
How to Use The Manual
Read the manual and other related documents before any work on the inverter
is carried out. Documents must be stored carefully and be available at all times.
All rights to the content of this manual are owned by Sungrow Power Supply
Co., Ltd. (hereinafter “SUNGROW”). No part of this document can be modified,
distributed, reproduced or published in any form or by any means without prior
written permission from SUNGROW.
Content may be periodically updated or revised due to product development.
The information in this manual is subject to change without notice. The latest
manual can be acquired at www.sungrowpower.com.
Symbols
Safety instructions will be highlighted with the following symbols.
Symbol
Explanation
Indicates a hazard with a high level of risk that, if not
avoided, will result in death or serious injury.

II
Symbol
Explanation
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.
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.

III
Contents
About This Manual.....................................................................I
1Safety....................................................................................1
2System Solution..................................................................5
2.1 PV Energy Storage System (PV ESS) ......................................8
2.2 Retrofitting System.................................................................. 11
3Function 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
3.2Energy Conversion and Management.....................................14
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
3.3.2 Discharge Management ..........................................................24
3.3.3 Maintenance Management......................................................24
3.4 Communication and Configuration..........................................24
4Unpacking and Storing.....................................................25
4.1 Unpacking and Inspecting.......................................................25
4.2 Delivery Contents....................................................................26
4.3 Storing the Inverter..................................................................27
5Mechanical Mounting........................................................28

IV
5.1 Location Requirements............................................................28
5.2 Tools ........................................................................................30
5.3 Installing the Inverter................................................................32
5.4 Installing the Energy Meter......................................................33
6Electrical Connection .......................................................34
6.1 Terminal Description ................................................................34
6.2 Grounding the Inverter.............................................................36
6.3 Energy Meter Connection........................................................37
6.3.1 On the Meter Side................................................................... 37
6.3.2 On the Inverter Side................................................................ 39
6.4 Grid Connection.......................................................................40
6.4.2 Assembling the AC Connector................................................. 41
6.4.3 Installing the AC Connector..................................................... 42
6.5 PV Connection.........................................................................43
6.5.1 PV Input Configuration............................................................ 43
6.5.2 Connecting the Inverter to the PV Strings ............................... 45
6.6 Communication Connection.....................................................47
6.6.1 Ethernet Connection ............................................................... 47
6.6.2 Wi-Fi Connection..................................................................... 50
6.6.3 RS485 Connection.................................................................. 50
6.7 Battery Connection ..................................................................52
6.7.1 Connecting the Power Cable................................................... 52
6.7.2 Connecting the CAN Cable ..................................................... 53
6.8 Emergency Load Connection (Backup)...................................55
6.9 DO Connection........................................................................56
6.10 DRM / SPI Connection.............................................................58
6.10.1 DRM Connection (“AU”/“NZ”)................................................ 58
6.10.2 SPI Connection (“IT”) ............................................................ 60
7Commissioning .................................................................64
7.1 Inspection before Commissioning............................................64
7.2 Button Introduction...................................................................64
7.3 Powering on the System..........................................................65

V
7.4 LCD Initial Settings..................................................................66
7.4.1 Setting the Country Code........................................................66
7.4.2 Adding the Existing Inverter.....................................................68
7.4.3 Setting Feed-in Power.............................................................69
7.4.4 Setting System Time ...............................................................69
7.4.5 Setting Backup Function..........................................................69
7.4.6 Setting Reactive Power Regulation ("DE") ..............................70
7.4.7 Initializing ................................................................................70
7.5 Result Verification....................................................................71
7.5.1 Energy Meter Installation and Connection...............................71
7.5.2 Battery Information..................................................................73
7.5.3 System Time ...........................................................................73
8Troubleshooting and Maintenance..................................74
8.1 Troubleshooting.......................................................................74
8.1.1 Troubleshooting of LED Indicators...........................................74
8.1.2 Troubleshooting of the Errors..................................................74
8.2 Maintenance............................................................................83
8.2.1 Routine Maintenance ..............................................................83
8.2.2 Replacing the Button Battery...................................................83
9System Decommissioning ...............................................84
9.1 Decommissioning the Inverter.................................................84
9.2 Decommissioning the Battery..................................................85
10 Appendix I: LCD Operation..............................................86
10.1 Main Screen............................................................................86
10.2 LCD Menu...............................................................................87
10.3 Starting and Stopping the Inverter...........................................89
10.4 Advanced Settings ..................................................................89
10.4.1 Inputting Password................................................................89
10.4.2 Setting the Backup Function..................................................90
10.4.3 Adding the Existing Inverter...................................................90
10.4.4 Setting Feed-in Power...........................................................90
10.4.5 Setting the Battery Type ........................................................90

VI
10.4.6 Setting the Battery Usage Time............................................. 92
10.4.7 Setting Forced Charge.......................................................... 92
10.4.8 Setting the Protective Parameters......................................... 93
10.4.9 Setting Reactive Power Regulation....................................... 95
10.4.10 Setting Active Power Response .......................................... 95
10.4.11 DO Function Setting............................................................ 95
10.4.12 Setting the Communication Parameters.............................. 97
10.4.13 DRM Switch Setting ............................................................ 98
10.4.14 Factory Reset...................................................................... 98
10.5 Setting the Time.......................................................................99
10.6 Setting the Country..................................................................99
10.7 Viewing the Error Codes........................................................100
10.8 Self-test (Italy)........................................................................101
11 Appendix II: Reactive Power Regulation......................104
11.1 “PF” mode..............................................................................104
11.2 “Qt” Mode...............................................................................104
11.3 “Q(P)” Mode...........................................................................105
11.3.1 Country Italy (“IT”)............................................................... 105
11.3.2 Country Brazil (“BRA”)......................................................... 106
11.3.3 Countries except "IT" and “BRA”......................................... 106
11.4 “Q(U)” Mode...........................................................................107
11.4.1 Country Italy (“IT”)............................................................... 107
11.4.2 Countries except "IT"........................................................... 108
12 Appendix III: Active Power Response...........................110
12.1 Volt-watt Response................................................................110
12.1.1 Country Italy (“IT”)................................................................110
12.1.2 For Countries except Italy ....................................................110
12.2 Frq-Watt Response................................................................111
12.2.1 Country Italy (“IT”)................................................................111
12.2.2 For Countries except Italy ....................................................113
12.3 Volt-watt Response (Charging)..............................................115
13 Appendix IV: Technical Data..........................................117

VII
13.1 Inverter.................................................................................. 117
13.2 Energy Meter......................................................................... 119
13.3 Quality Assurance .................................................................120

1
1 Safety
General Safety
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; or
damage to the inverter and property safety of the operator or a third party.
Lethal voltage!
PV strings will produce electrical power when exposed to sunlight
and can cause a lethal voltage and an electric shock.
Only qualified personnel can perform the wiring of the PV panels.
All electrical connection
s must be in accordance with local and
national standards.
Only with the permission of the utility grid,
the inverter can be
connected to the utility grid.
Inverter
A warning label and a nameplate are pasted on the side of the inverter.
Tab. 1-1 Symbols on the Inverter
Symbol
Explanation
Disconnect the inverter from all the external power sources
before service!
Do not touch live parts until 10 minutes after disconnection
from the power sources.

1 Safety User Manual
2
Symbol
Explanation
There is a danger from a hot surface that may exceed
60°C.
Danger to life due to high voltages!
Only qualified personnel
can open and service the
inverter.
Check the user manual before service!
Regulatory compliance mark.
Do not dispose of the inverter together with household
wastes.
The inverter does not have a transformer.
TUV mark of conformity.
CE mark of conformity.
Danger to life from electric shock due to live voltage
Do not open the enclosure when the inverter is working. Unauthorized
opening will void guarantee and warranty claims and in most cases
terminate the operating license.
When the enclosure lid is removed, live components can be touched
which can result in death or serious injury due to electric shock.
Danger to life from electric shock due to damaged inverter
Only operate the inverter when it is technically faultless and in a safe
state.
Operating a damaged inverter can lead to hazardous situations that can
result in death or serious injuries due to electric shock.

User Manual 1 Safety
3
Risk of inverter damage or personal injury
Do not pull out PV connectors, AC connector or battery connectors
while the inverter is running. De-energize from all power sources. Wait
10 minutes for the internal capacitors to discharge. Verify that there is
no voltage or current before pulling any connector.
All the warning labels and nameplate on the inverter body:
must be clearly visible; and
must not be removed, covered or pasted.
Risk of burns due to hot components
Do not touch any hot parts (such as heat sinks) during operation. Only
the LCD panel and the DC switch can safely be touched at any time.
Only qualified personnel can change the country setting.
Unauthorized alteration of the country setting 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; and
wear a grounding wristband before touching any connectors.
Batteries
Batteries deliver electric power, resulting in burns or a fire hazard when
they are short circuited, or wrongly installed.
Lethal voltages are present in the battery terminals and cables in the
inverter. Severe injuries or death may occur if the cables and terminals
in the inverter are touched.

1 Safety User Manual
4
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.
Skills of Qualified Personnel
Qualified personnel must have the following skills:
training in the installation and commissioning of the electrical system, as well
as the dealing with hazards;
knowledge of the manual and other related documents; and
knowledge of the local regulations and directives.

5
2 System Solution
The inverter must only be operated with PV strings of protection class
II in accordance with IEC 61730, application class A. It is not permitted
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 covered by warranty.
Any use other than that described in this chapter is not permitted.
The single-phase hybrid inverters are applicable to both on-grid and off-grid PV
systems. With the Energy Management System (EMS) integrated, it can control
and optimize the energy flow so as to increase the self-consumption of the
system.
Inverter
The type description is as follows:
SH 5K
Code of power level
Code of Sungrow hybrid inverter
-30
Inverter version
Tab. 2-1 Power Level Description
Type
Nominal Output Power
Nominal Grid Voltage
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 System Solution User Manual
6
The following figure shows the inverter appearance, which is for reference only.
The actual product that you receive may differ.
123467
9
8
5
10
Type
S/N A**********
SH5K-30
PV Input
AC Input and output
SUNGROW tOW9R SUttLY /O., LT5.
WWW.SUNGROWPOWER.COM MADE IN CHINA
Grid Monitoring: VDE 0126-1-1 VDE-AR-N 4105
Battery
xxxxxxxxx
Password **********
600V
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx xxxxxxxxx xxxxxxxxx
xxxxxxxxx
xxxxxxxxx xxxxxx
xxxxxx
Backup output
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
xxxxxxxxx
Fig. 2-1 Inverter Appearance
No.
Name
Description
1 Grid 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).
4
DC switch
To disconnect the DC current safely
5
Communication
terminals
RS485, Ethernet, CAN, DO, DRM and SPI
6
Wi-Fi terminal
To connect the Wi-Fi module
7
Battery connection
BAT+ and BAT-
8
Second PE terminal
For reliable grounding
9 LCD panel
The display and four buttons can be used to
access current operating data or change inverter
settings.
10 Nameplate
Clearly identify the product, including the SN,
password, technical data, certifications, etc.

User Manual 2 System Solution
7
The following figure shows the dimensions of the inverter.
D (170)
W (457)
H (515)
Fig. 2-2 Dimensions (unit: mm)
The LCD panel with an indicator and four buttons is on the front of the inverter.
3
Fig. 2-3 LCD Display Panel
No.
Name
Description
1
Screen
To display the information.
2 Indicator
Green and red can be indicated via the indicator, from
which user can know the current status. For detailed
definition, see Tab. 7-5.
3 Buttons
User can operate the LCD menu via the four buttons.
For detailed functions, see Tab. 7-1.

2 System Solution User Manual
8
Energy Meter
The SUNGROW Energy Meter is installed next to the main switch to detect the
electrical measured values at the grid-connected point. It communicates with
the inverter via an RS485 connection. The dimensions are shown below.
Front view Side view
18 65
117
35
45.3
Fig. 2-4 single-phase Meter Dimensions (unit: mm)
Back view Side view
72
85
45 27
45
35
Fig. 2-5 Three-phase Meter Dimensions (unit: mm)
The single-phase Energy Meter and the three-phase Energy Meter
are alternative in the delivery. The meter figures in this document
have been created for the single-
phase Energy Meter unless
otherwise specified.
More detailed information on the Smart Energy Meter can be found
in the respective Quick Installation Guide.
2.1 PV Energy Storage System (PV ESS)
With a battery module for the immediate storage of energy, the conventional PV
system can be upgraded to be an Energy Storage System (ESS).
The system is capable of operating as an off-grid system to ensure an
emergency power supply for emergency loads in the event of a grid interruption

User Manual 2 System Solution
9
or blackout. The grid interruption or blackout may be caused by:
Islanding;
under-voltage;
under-frequency; or
over-frequency.
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. A power outage must not lead to personal injury.
Battery Home appliance
Emergency loads
A B
C
D
EF
G
Fig. 2-6 Inverter Application in PV Energy Storage System (PV ESS)
Tab. 2-2 System Compositions
Item
Description
Remark
A PV strings
Monocrystalline silicon, polycrystalline
silicon, and thin-film without grounding
B
Inverter
SH3K6-30 / SH4K6-30 / SH5K-30
C
Sungrow Energy
Meter (single-phase
for example)
Measures the feed-in power and
communicates
with the inverter via the
RS485 port.
D
Utility grid
Grid grounding system types: TT, TN
E
Household load
Devices that consume energy
F Battery (optional) A Li-ion battery or a lead-acid battery
G
Emergency loads
-

2 System Solution User Manual
10
Energy Management during Daytime
The energy management system (EMS) works in self-consumption mode by
default. The PV power will go to emergency loads and house loads first, then
the battery. Then if the battery is fully charged the excess will go to the grid, the
feed-in power should be not more than the limit value in zero-export setting in
initial commissioning.
If the PV power is less than the load power, the battery will discharge and
provide the energy shortfall. The inverter will draw power from the mains if the
power from the PV and battery is less than the load power.
Day
Home appliance
PV power generation
No current
With current
Emergency loads
Energy Management during Night
The battery discharges to provide energy to loads. If the battery is empty or
there is not enough power from the battery system, the unmet power will be
supplied by the grid first to emergency loads and house loads.
No current
With current
Night
Home appliance
Emergency loads
When the grid is present, the bypass function of the hybrid inverter works and
the emergency loads will be directly connected to the grid via the bypass relay
integrated in the inverter. The emergency loads are preferentially supplied with
PV or battery energy, and is supplemented by the grid when the PV and battery
energy are insufficient.