SunSynk SUNSYNK-25K-SG01HP3-EU-BM2 User manual

v.19 (08/21/23)
SUNSYNK-25K-SG01HP3-EU-BM2
SUNSYNK-30K-SG01HP3-EU-BM3
SUNSYNK-40K-SG01HP3-EU-BM4
SUNSYNK-50K-SG01HP3-EU-BM4
THREE-PHASE
HYBRID INVERTER
PLEASE RETAIN FOR
FUTURE REFERENCE
USER MANUAL
www.sunsynk.com
[email protected]
[email protected]

THREE PHASE HI 25/50kW | Installer Manual2
PREFACE
This Installer Manual contains information for proper installation, operation, maintenance, and care of the
Sunsynk Three-Phase Hybrid Inverter. A deep understanding of the instructions described in this document
will help you get the most out of your new inverter.
This document should be read thoroughly, and all the procedures described in this manual should be
followed carefully. If you have questions or concerns about this product's operation and maintenance,
please get in touch with our customer support.
All personnel involved in this machine's installation, setup, operation, maintenance, and repair should read
and understand this manual, mainly its safety instructions. Substandard performance and longevity, property
damage, and personal injury may result from not knowing and following these instructions.
In order to ensure long product life, Sunsynk recommends that you utilize the product and perform
maintenance by correctly following the instructions described in this guide. The manufacturer's warranty
does not cover any damage resulting from the neglect of these instructions.
Sunsynk assumes no liability for damage caused by the operation contrary to what is specied in this
operating manual.
All information in this User Guide is based on the latest product information available at the time of printing
approval. Sunsynk reserves the right to make changes at any time without notice and without incurring any
obligation.
Please always keep this manual with the inverter as a reference for everyone using this product.

THREE PHASE HI 25/50kW | Installer Manual3
SAFETY 4
General Safety 4
Symbols/Safety Signs 4
Safety Instructions 6
Product Disposal 6
PRODUCT INTRODUCTION 7
System Overview 7
Product Size 8
Features 9
Basic System Architecture 10
Product Handling Requirements 10
TECHNICAL SPECIFICATIONS 11
INSTALLATION 13
Parts List 13
Selecting the Mounting Area 14
Mounting the Inverter 15
Function Port Denition 17
Battery Connection 18
Grid and Backup Load Connection 20
PV Connection 21
PV Module Selection 21
PV Module Wiring 22
Connecting the CT Coil 24
Meter Connection 25
CHNT Meter 25
CHNT Meter with CT Coil 26
Earth Connection (MANDATORY) 27
Wiring System for Inverter 28
Wiring Diagram 29
Typical Application of Diesel Generator 31
Three Phase Parallel Connection 32
OPERATION 33
Switching ON/OFF 33
Display 33
LED indicators 33
Function buttons 33
LCD operation ow chart 34
Home page 35
Status Page 35
System Flow Page 36
Setup Page 37
Basic Setup 38
Set Time (Clock) 38
Set Company Name / Beeper / Auto dim 38
Factory Reset and Lock Code 39
Inverter Remote Control 40
Battery Setup Page 40
Generator & Battery Page 41
Battery Discharge Page 43
Setting Up a Lithium Battery 45
Program Charge & Discharge Times 47
Grid Supply Page 51
Paralleling Inverters Advanced Settings 55
Connecting the DRM’s 58
Solar Power Generated 59
Grid Power 59
Advanced Settings for Wind Turbines 60
Advanced Settings for Auxiliary Load 61
OPERATION MODES 64
Mode I: Basic 64
Mode II: With Generator 64
Mode III: With Smart-Load 65
Mode IV: AC Couple 65
FAULT CODES 66
COMMISSIONING 71
Start-Up / Shutdown Procedure 71
Inverter Commissioning Info 71
GDFI Fault 72
MAINTENANCE 72
APPENDIX A 73
APPENDIX B 75
Table of Contents

THREE PHASE HI 25/50kW | Installer Manual4
SAFETY
This device should only be used in accordance with the instructions within this manual and in compli-
ance with local, regional, and national laws and regulations. Only allow this device to be installed, oper-
ated, maintained, and repaired by other people who have read and understood this manual. Ensure the
manual is included with this device should it be passed to a third party.
DO NOT allow minors, untrained personnel, or person(s) suering from a physical or mental impairment
that would aect their ability to follow this manual, install, maintain or repair this device.
Any untrained personnel who might get near this device while it is in operation MUST be informed that it
is dangerous and instructed carefully on how to avoid injury.
General Safety
Symbols/Safety Signs
This symbol indicates information that if
ignored, could result in personal injury,
physical damage or even death due to
incorrect handling.
CE mark is attached to the solar
inverter to verify that the unit follows
the provisions of the European Low
Voltage and EMC Directives.
Risk of burn. Refer to the operating instructions.
5min
Risk of electric shock.
DO NOT touch the terminal or remove
the shell within 5 minutes after discon-
necting all power.
The UKCA marking is used for products
placed on the market in Great Britain
(England, Scotland and Wales). The
UKCA marking applies to most prod-
ucts for which the CE marking could be
used.
Keep the equipment well-ventilated.
ONLY qualied personnel should install
or perform maintenance work on the
units.
This product's batteries contain an ex-
plosive, self-reactive material that could
blow up when heated.
Warranty Void if Seal is Broken
Be careful when touching the inverter!
It is an electrical product with risk of
electric shock and heating.
Store below 25°C.
Indicates that this product is recyclable. Keep the product out of reach of chil-
dren!
Keep away from open ames and
moisture.
Avoid unsuitable shoes for installing
and operating the inverter.

THREE PHASE HI 25/50kW | Installer Manual5
V DC 48 V
230V
15.70 A
BATTERY INPUT
Battery Discharge Voltage, Battery
Discharge Current, Input Voltage Type,
Battery Discharge Power.
V DC 48 V
230V
15.70 A
AC OUTPUT
Output Voltage, Input Voltage Type, Ac
Output Rated Current, Max AC Current,
Output Frequency, Max AC ISC, Power
Factor & AC Output Rated Power.
V DC 48 V
230V
15.70 A
TEMPERATURE
Ambient, Min & Max.
V DC 48 V
230V
15.70 A
PV INPUT
PV Input Voltage, Number of MPPT's,
MPPT Input Current & Max PV ISC.
V DC 48 V
230V
15.70 A
Net Weight in Kilograms.
V DC 48 V
230V
15.70 A
Protective Conductor Terminal or Earth
Ground Terminal.
V DC 48 V
230V
15.70 A
Single Phase.
V DC 48 V
230V
15.70 A
Three Phase.
V DC 48 V
230V
15.70 A
Inverter DC to AC.
WARRANTY REGISTRATION
Scan the QR code to access our web-
site and sign up for the manufacturer’s
warranty.
MANUAL DOWNLOAD
Download the latest version of the
instruction manual by scanning the QR
code.
Do not dispose the device, accesso-
ries, and packaging with regular waste.
Follow local ordinances or contact the
manufacturer for disposal guidance.
V DC 48 V
230V
15.70 A
CONTINUOUS OUTPUT
CURRENT
Maximum Continuous Output Current,
Output Frequency and Voltage, & AUX
(programmable AC output on battery
SOC).
3

THREE PHASE HI 25/50kW | Installer Manual6
Safety Instructions
This chapter contains important safety and operating instructions. Read and keep this manual for future
reference.
Before using the inverter, please read the instructions and warning signs of the battery and correspond-
ing sections in the instruction manual.
Do not disassemble the inverter. If you need maintenance or repair, take it to a professional service
center.
Improper reassembly may result in electric shock or re.
To reduce risk of electric shock, disconnect all wires before attempting any maintenance or cleaning.
Turning o the unit will not reduce this risk.
Never charge a frozen battery.
For optimum operation of this inverter, please follow required specication to select appropriate cable
size. It is very important to correctly operate this inverter.
Be very cautious when working with metal tools on or around batteries. Dropping a tool may cause a
spark or short circuit in batteries or other electrical parts, even cause an explosion.
Please strictly follow installation procedure when you want to disconnect AC or DC terminals.
Please refer to "Installation" section of this manual for the details.
Grounding instructions - this inverter should be connected to a permanent grounded wiring system. Be
sure to comply with local requirements and regulation to install this inverter.
Never cause AC output and DC input short circuited. Do not connect to the mains when DC input short
circuits.
Product Disposal
DO NOT dispose this product with domestic waste!
Electrical devices should be disposed of in accordance with regional directives on electronic and/ or elec-
tronic-waste disposal. In case of further questions, please consult your supplier. In some cases, the supplier
can take care of proper disposal.
WARNING
HIGH LIFE RISK DUE TO FIRE OR ELECTROCUTION.
Sunsynk Three-Phase Hybrid Inverter can only be installed by a qualied licensed electrical contractor.
This is not a DIY product.

THREE PHASE HI 25/50kW | Installer Manual7
PRODUCT INTRODUCTION
The Sunsynk Three-Phase Hybrid Inverter is a multifunctional inverter, combining functions of inverter, solar
charger and battery charger to oer uninterruptible power support with portable size. Its comprehensive
LCD display oers user congurable and easy accessible button operation such as battery charging, AC/solar
charging, and acceptable input voltage based on dierent applications.
System Overview
1. Inverter Indicators 7. Parallel Port 13. Grid
2. LCD Display 8. CAN Port 14. Function Port
3. Function Buttons 9. DRM Port 15. Load
4. Power on/o button 10. BMS Port 16. PV Input
5. DC switch 11. RS485 Port 17. Battery Input
6. Meter Port 12. Generator Input 18. WiFi Interface
1
2
3
4
5
16
17
18
7
6
8
9
11
10
12
13
14
15

THREE PHASE HI 25/50kW | Installer Manual8
Product Size

THREE PHASE HI 25/50kW | Installer Manual9
Features
INTERACTIVE
Easy and straightforward to understand LCD display;
Supporting Wi-Fi or GSM monitoring;
Visual power ow screen;
Built-in 2 strings for 1 MPP tracker and 1 string for 1 MPP tracker;
Smart settable 3-stage MPPT charging for optimised battery performance;
Auxiliary load function;
Multi-inverter function: grid-tied and o-grid;
COMPATIBLE
Compatible with mains electrical grid voltages or power generators;
Compatible with wind turbines;
230V/400V Three-phase Pure Sinewave Inverter;
It can power up both single-phase and 3-phase loads;
Self-consumption and feed-in to the grid;
Auto restart while AC is recovering;
Maximum charging/discharging current of 50A + 50A;
DC and AC coupled to retrot existing solar system;
Compatible with high-voltage batteries (600V);
CONFIGURABLE
Fully programmable controller;
Programmable supply priority for battery or grid;
Programmable multiple operation modes: on-grid/o-grid & UPS;
Congurable battery charging - current/voltage based on applications by LCD setting;
Congurable AC / solar / generator charger priority by LCD setting;
6 time periods for battery charging/discharging;
SECURE
Overload/over-temperature/short-circuit protection;
Smart battery charger design for optimised battery protection;
Limiting function installed to prevent excess power overow to the grid;
Isolation transformer design;
APPLICATIONS
Marine (vessel power management);
Power shedding (home/oce/factory);
UPS (fuel-saving systems);
Remote locations with solar and wind generators;
Building sites;
Telecommunication;

THREE PHASE HI 25/50kW | Installer Manual10
Basic System Architecture
The following diagram explains the basic application and architecture of this 3-Phase Inverter.
It also includes the following devices to have a Complete running system.
Generator or Utility
PV modules
Batteries
Normal and smart loads
Monitoring system
Consult with your system integrator for other possible system architectures depending on your require-
ments.
This inverter can power all kinds of appliances in the home or one environment, including motor-type appli-
ances such as refrigerators and air conditioners.
Product Handling Requirements
Two people stand on both sides of the machine, holding two handles to lift the machine.

THREE PHASE HI 25/50kW | Installer Manual11
TECHNICAL SPECIFICATIONS
Model
SUNSYNK-
25K-SG01HP3-
EU-BM2
SUNSYNK-
30K-SG01HP3-
EU-BM3
SUNSYNK-40K-
SG01HP3-EU-
BM4
SUNSYNK-50K-
SG01HP3-EU-
BM4
Battery Input Date
Battery Type Li-Ion
Max. Charging Current 50A+50A
Max. Discharging Current 50A+50A
Number of battery input 2
Charging Strategy for Li-lon Battery Self-adaption to BMS
PV String Input Data
Max. DC Input Power 32500W 39000W 52000W 65000W
Max. DC Input Voltage 1000V
Start-up Voltage 180V
MPPT Range 150-850V
Full Load DC Voltage Range 450-850V 360-850V 360-850V 450-850V
Rated DC Input Voltage 600V
PV Input Current 36+36A 36+36+36A 36+36+36+36A
Max.PV Isc 55+55A 55+55+55A 55+55+55+55A
No. Of MPPT Trackers 2 3 4
No. Of Strings Per MPPT Tracker 2+2 2+2+2 2+2+2+2
AC Output Data
Rated AC Output and UPS Power 25000W 30000W 40000W 50000W
Max. AC Output Power 27500W 33000W 44000W 55000W
Peak Power(o grid) 1.5 time of rated power, 10 S
AC Output Rated Current 37.9/36.3A 45.5/43.5A 60.7/58.0A 75.8/72.5A
Max. AC Current 50A 60A 70A 83.3A
Max. Continuous AC Pass through 200A
Generator input/Smart load
/AC couple current
37.9/150
/37.9A
45.5/150
/45.5A
60.7/150
/60.7A
75.8/150
/75.8A
Power Factor 0.8 leading to 0.8 lagging
Output Frequency and Voltage 50/60Hz; 3L/N/PE 220/380, 230/400Vac
Grid Type Three Phase
DC injection current (mA) <0.5%1n
Eciency
Max. Eciency 97.60%
Euro Eciency 97.00%
MPPT Eciency >99%

THREE PHASE HI 25/50kW | Installer Manual12
Model
SUN-25K-
SG01HP3-EU-
BM2
SUN-30K-
SG01HP3-EU-
BM3
SUN-40K-
SG01HP3-EU-
BM4
SUN-50K-
SG01HP3-EU-
BM4
Protection
PV Input Lightning Protection Integrated
Anti-islanding Protection Integrated
PV String Input Reverse Polarity
Protection Integrated
Insulation Resistor Detection Integrated
Residual Current Monitoring Unit Integrated
Output Over Current Protection Integrated
Output Shorted Protection Integrated
Output Over Voltage Protection DC Type II / AC Type III
Battery Over Current Protection Fuses
Certications and Standards
Grid Regulation VDE4105,IEC61727/62116,VDE0126,AS4777.2,CEI 0 21,EN50549-1,
G98,G99,C10-11,UNE217002,NBR16149/NBR16150
EMC/Safety Regulation IEC62109-1/-2, NBT32004-2018, EN61000-6-1,EN61000-6-2,
EN61000-6-3, EN61000-6-4
General Data
Operating Temperature Rande -40~60 ºC, >45 ºC Derating
Cooling Intelligent air cooling
Noise ≤45 dB
Communication with BMS RS485; CAN
Weight 80 Kg
Size 527W×894H×294D mm
Protection Degree IP65
Installation Style Wall-mounted
Warranty 5 years

THREE PHASE HI 25/50kW | Installer Manual13
INSTALLATION
Parts List
Check the equipment before installation. Please make sure nothing is damaged in the package. You should
have received the items in the following package:
Three-Phase Smart Meter
SET ESC
Hybrid Inverter
x1
Wall Mounting
Bracket x1
Stainless Steel Anti-Colli-
sion Bolt M12x60 x4
L-type Hexagon Wrench
x1
Parallel Communication
Cable x1
Stainless Steel Mounting
Screws M4*12 x2
Meter (Opitional)
x1 User Manual x1 Data Logger x1
Battery Plug Connectors
x4
DC+/DC- Plug Connector
Including Metal Terminal
xN
T-type Wrench
x1
Sensor Clamp
x3

THREE PHASE HI 25/50kW | Installer Manual14
Selecting the Mounting Area
For proper heat dissipation, allow a clearance of approximately 500mm to the side, 500mm above and below
the unit, and 1000mm to the front of the unit.
DO NOT install the inverter in the following areas:
Areas with high salt content, such as the marine environment. It will deteriorate the metal parts and
possibly lead to water/dampness penetrating the unit.
Areas lled with mineral oil or containing splashed oil or steam, such as those found in kitchens. It will
deteriorate plastic parts of the unit, causing those parts to fail or allowing water/damp to penetrate the
unit.
Areas that generate substances that adversely aect the equipment, such as sulphuric gas, chlorine gas,
acid, or alkali. These can cause the copper pipes and brazed joints to corrode and fail to conduct elec-
tricity reliably.
Areas that can cause combustible gas to leak, which contains suspended carbon-bre or ammable
dust, or volatile inammable such as paint thinner or gasoline.
Areas where there may be gas leaks and where gas may settle around the unit as this is a re risk.
Areas where animals may urinate on the unit or ammonia may be generated.
High altitude areas (over 4000 metres above sea level).
Environments where precipitation or humidity is above 95%
Areas where the air circulation is too low.
ALSO CONSIDER:
Installing the indoor unit, outdoor unit, power supply cable, transmission cable, and remote control cable
at least 1 metre away from any television or radio receiver. This will prevent TV reception interference or
radio noise. This will prevent radio signal interference from external units that might interfere with the
Wi-Fi or GSM monitoring.

THREE PHASE HI 25/50kW | Installer Manual15
Mounting the Inverter
Select installation locations that are adequate to support the weight of the converter.
Install this inverter at eye level to allow the LCD to be read anytime.
To ensure optimal operation, an appropriate ambient temperature is between -25 and 60°C.
Be sure to keep other objects and surfaces, as shown in the gure to guarantee sucient heat dissipa-
tion and have enough space to remove wires.
For proper air circulation to dissipate heat, allow a clearance of approximately 50cm to the side.
WARNING
Risk of injury (Heavy Object).
Remember that this inverter is heavy, so users must carefully handle the unit during installation,
especially when mounting or removing it from a wall.
Choose the recommended drill head (as shown below) to drill 4 holes on the wall, 62-70mm deep.
1. Use a proper hammer to t the expansion bolt into the holes.
2. Carry the inverter and hold it, ensure the hanger aims at the expansion bolt, and x the inverter on the
wall.
3. Fasten the screw head of the expansion bolt to nish the mounting.
If children under 10 years old may approach the unit, take preventive measures so they cannot reach
and touch the unit.
Install the indoor unit on the wall where the oor height is higher than 1600mm.
Before connecting all wires, please take the metal cover o, removing the screws as shown below:
62-70mm
[(2.44in) to (2,75in)]

THREE PHASE HI 25/50kW | Installer Manual16
Inverter hanging plate installation

THREE PHASE HI 25/50kW | Installer Manual17
Function Port Denition

THREE PHASE HI 25/50kW | Installer Manual18
Please follow below steps to implement battery connection:
1. Pass the cable through the terminal:
WARNING
Reverse Polarity.
Before making the nal DC connection or closing DC breaker/disconnect, be sure positive (+) must be
connected to the positive (+) and negative (-) must be connected to the negative (-). A reverse polarity
connection on the battery will damage the inverter.
WARNING
All wiring/connecting must be performed by qualied personnel. In addition, connecting the battery
with a suitable cable is essential for safe and ecient operation of the system
Battery Connection
For safe operation and compliance, an individual DC overcurrent protector or disconnection device is
required to connect the battery and the inverter. Users are recommended to utilise a suitable fuse and DC
isolator (see next page). Switching devices may not be required in some applications, but overcurrent pro-
tectors must be used. Please refer to the typical amperage in the table below for the required fuse or circuit
breaker size.
Model Cross section (mm2)
Range Recommended value
25/30/40/50KW 16.0~25.0 (6~4AWG) 16.0(6AWG))
2. Put on the rubber ring:

THREE PHASE HI 25/50kW | Installer Manual19
3. Crimp terminals:
4. Fasten terminal with a bolt:
5. Fasten the terminal with outer cover:
NOTE:
Depending on the battery type, the inverter should be capable of controlling the battery BMS. There-
fore, you need to set the protocol of the BMS on both the battery and the inverter.
When using more than one battery, the rst battery will be the master, and the other batteries will be
the slaves. Please, check the battery manufacturer's specications for proper operation.
To verify if the battery is communicating, access the Li BMS menu as detailed in section 5.13, 'Setting
Up a Lithium Battery', and check whether the values are realistic. It is important that the charge and
discharge limits on that page match the numbers expected for the number of connected batteries.

THREE PHASE HI 25/50kW | Installer Manual20
Grid and Backup Load Connection
Before connecting to the grid, please install a separate AC breaker between the inverter and the grid. Also,
it is recommended that installs an AC breaker between the backup load and inverter. This will ensure that
the inverter can be securely disconnected during maintenance and fully protected from overcurrent. For the
25/30/40/50KW model, the recommended AC breaker for the backup load is 180A.
There are three terminal blocks marked as GRID, LOAD, and GEN. Please do not confuse input and output
connections. External AC SPD is compulsory on all Sunsynk inverters.
WARNING
All wiring must be performed by qualied personnel. System safety and ecient operation need to
use appropriate cable for AC input connection. To reduce the risk of injury, please use the proper
recommended cables as below.
Please follow the steps below to implement GRID, LOAD, and GEN port connections:
1. Before making GRID, LOAD, and GEN port connections, make sure to turn o the AC breaker or
disconnector rst.
2. Remove a 10mm sleeve from each wire, unscrew the bolts, insert the cables according to the polarities
indicated on the terminal block and tighten the terminal screws. Ensure the connection is complete.
Model Wire size Cable (mm2) Torque value (max)
25/30/40/50KW 4/0 AWG 107 28.2Nm
Backup Load Connection
Grid Connection
Model Wire size Cable (mm2) Torque value (max)
25/30/40/50KW 4/0 AWG 107 28.2Nm