SunSynk ECCO SUN-5K-SG05LP1-EU User manual

ECCO
HYBRID INVERTER
Global Tech China Ltd, 3 Floor, Wai Yip Industrial Building.
171 Wai Yip Street, Kwun Tong, Kowloon, Hong Kong.
Tel: [phone] Fax: [phone]
www.sunsynk.com / [email protected]
USER MANUAL
v.9 (04/28/23)
SUN-3.6/5/6/7.6/8K-SG05LP1-EU
PLEASE RETAIN FOR
FUTURE REFERENCE

ECCO SG05LP1 | User Manual2
Table of Contents
1. SAFETY 5
1.1. General Safety 5
1.2. Symbols 5
1.3. Safety Instructions 6
1.4. Disposal Remarks 6
2. PRODUCT INTRODUCTION 7
2.1. Product Overview 7
2.2. Product Size 8
2.3. Product Features 9
2.4. Basic System Architecture 10
3. TECHNICAL SPECIFICATIONS 11
4. INSTALLATION 13
4.1. Parts List 13
4.2. Selecting the Mounting Area 14
4.3. Mounting the Inverter 15
4.4. Battery Connection 16
4.4.1. Function Port Denition 18
4.4.2. Recommended DC Battery Protection 19
4.5. Connecting a Lithium Battery 19
4.6. Battery Temperature Sensor Connection 21
4.7. Connecting the AC 22
4.7.1. Recommended AC Surge Protector 23
4.8. PV Connection 24
4.8.1. PV module selection 24
4.8.2. PV module wiring 24
4.8.3. PV Protection 25
4.9. Installing the CT Coil 25
4.11. Meter Connection 27
4.11.1. System Connection for the CHNT Meter 27
4.10. Earth Connection (MANDATORY) 27
4.12. Wiring System for Inverter 29
4.13. Single-Phase Parallel Connection Diagram 30
4.14. Three-Phase Parallel Inverter 31
4.15. Typical Application Diagram of Diesel Generator 32

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5. OPERATION 33
5.1. Switching ON/OFF 33
5.2. Display 33
5.2.1. LED indicators 33
5.2.2. Function buttons 33
5.3. LCD operation ow chart 34
5.4. Home page 35
5.5. Status Page 35
5.6. System Flow Page 36
5.7. Setup Page 37
5.8. Basic Setup 38
5.8.1. Set Time (Clock) 38
5.8.2. Set Company Name / Beeper / Auto dim 38
5.8.3. Factory Reset and Lock Code 39
5.9. Battery Setup Page 40
5.10. Generator & Battery Page 41
5.11. Battery Discharge Page 43
5.12. Setting Up a Lithium Battery 45
5.13. Program Charge & Discharge Times 51
5.14. Grid Supply Page 55
5.15. Advanced Settings for Paralleling Inverters 59
5.16. Connecting the DRM’s 62
5.17. Advanced Function Setup 63
5.18. Solar Power Generated 63
5.19. Grid Power 64
5.20. Advanced Settings for Wind Turbines 65
5.21. Advanced Settings for Auxiliary Load 66
6. OPERATING MODES 69
6.1. Mode I: Basic 69
6.2. Mode II: With Generator 69
6.3. Mode III: With Smart Load 70
6.4. Mode IV: AC Couple 70
7. Fault Codes 72

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8. COMMISSIONING 76
8.1. Start-Up / Shutdown Procedure 76
8.2. Information for Commissioning the Inverter 76
8.3. GDFI Fault 77
9. MAINTENANCE 77
APPENDIX A 78
APPENDIX B 79
APPENDIX C 79
APPENDIX D 79
APPENDIX E 79

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1. 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.
1.1. General Safety
1.2. Symbols
WARNING This symbol indicates information that if ignored, could result in personal
injury or even death due to incorrect handling.
CAUTION This symbol indicates information that if ignored, could result in personal
injury or physical damage due to incorrect handling.
PLEASE NOTE Indicates information that is considered important, but not hazard-related.

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1.3. 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 the 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 the required specications to select the appropri-
ate cable size. It is very important to operate this inverter correctly.
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 causing an explosion.
Please strictly follow the installation procedure when you want to disconnect AC or DC terminals.
Please refer to this manual's "Installation" section for details.
Grounding instructions - this inverter should be connected to a permanent grounded wiring system. Be
sure to comply with local requirements and regulations to install this inverter.
Never cause AC output and DC input to short-circuit. Do not connect to the mains when DC input short
circuits.
1.4. Disposal Remarks
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.
The Sunsynk Ecco Hybrid Inverter can only be installed by a qualied licensed electrical contractor.
This is not a DIY product.

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2. PRODUCT INTRODUCTION
The Sunsynk Ecco Hybrid Inverter is a multifunctional inverter combines the functions of an inverter, solar
charger and battery charger to oer uninterruptible power support with a portable size. Its comprehensive
LCD display oers user-congurable and easily accessible button operations such as battery charging, AC/
solar charging, and acceptable input voltage based on dierent applications.
1. Inverter Indicators 7. DRMs Port 13. Grid
2. LCD Display 8. Parallel port 14. PV input with two MPPT
3. Function Buttons 9. Function Port 15. Battery
4. Battery Input Connectors 10. RS 485 Port 16. Temperature sensor
5. BMS 485 Port 11. Generator input 17. WiFi Interface
6. BMS CAN Port 12. Load 18. Fan*
*Note: For some hardware versions, it doesn't have this fan.
2.1. Product Overview

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2.2. Product Size

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2.3. Product Features
INTERACTIVE
Easy and simple to understand display
Supporting Wi-Fi or GSM monitoring
Visual power ow screen
Parallel / multi invert function grid-tied and o-grid
COMPATIBLE
Compatible with main electrical grid voltages or power generators
Compatible with wind turbines
Self-consumption and feed-in to the grid
Auto restart while AC is recovering
Auto earth bond feature (Via a relay)
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
SECURE
Overload/over-temperature/short-circuit protection
Smart battery charger design for optimized battery protection
Limiting function installed to prevent excess power overow to grid
APPLICATIONS
Marine (vessel power management)
Power shedding (home/oce/factory)
UPS (fuel-saving systems)
Remote locations with solar and wind generators
Building sites
Military locations
Telecommunication

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2.4. Basic System Architecture
The following illustration shows the basic application of this inverter.
It also includes following devices to have a Complete running system.
Generator or Utility
PV modules
Consult with your system integrator for other possible system architectures depending on your require-
ments.
This inverter can power all kinds of appliances in home or once environment, including motor type applianc-
es such as refrigerator and air conditioner.

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3. TECHNICAL SPECIFICATIONS
Model SUN-3.6K-
SG05LP1-EU
SUN-5K-
SG05LP1-EU
SUN-6K-
SG05LP1-EU
SUN-7.6K-
SG05LP1-EU
SUN-8K-
SG05LP1-EU
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range 40~60V
Max. Charging Current 90A 120A 135A 190A 190A
Max. Discharging Current 90A 120A 135A 190A 190A
Charging Curve 3 Stages/Equalisation
External Temperature
Sensor Yes
Charging Strategy for Li-Ion
Battery Self-Adaptation to BMS
PV String Input Data
Max. DC Input Power 4680W 6500W 7800W 9880W 10400W
PV Input Voltage 370V (125V~500V)
MPPT Range 150~425V
Start-up Voltage 125V
Full Load DC Voltage Range 300~425V 200~425V
PV Input Current 13A+13A 26A+26A
Max. PV Isc 17A+17A 34A+34A
No. of MPPT / Strings Per
MPPT 2/1+1
AC Output Data
Rated AC Output and UPS
Power 3600W 5000W 6000W 7600W 8000W
Max. AC Power 3690W 5500W 6600W 8360W 8800W
Peak Power (o-grid) 2 times of rated power, 10 S
AC Output Rated Current 16.4A 22.7A 27.3A 34.5A 36.4A
Max AC Current 18A 25A 30A 38A 40A
Max Continuous AC
Passthrough 35A 40A 50A
Output Frequency and
Voltage 50/60Hz; L/N/PE 220/230Vac (single phase)
Grid Type Single-Phase
Current Harmonic Distor-
tion THD<3%(Linear load<1.5%)
Eciency
Max. Eciency 97.60%
MPPT Eciency 97.00%
Euro Eciency 99.90%
Protection
Integrated
PV Input Lightning Protection, Anti-islanding Protection, PV String Input
Reverse Polarity Protection,Insulation Resistor Detection, Residual Current
Monitoring Unit, Output Over Current Protection,Surge protection

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Certications and Standards
Grid Regulation CEI 0-21, VDE-AR-N 4105, NRS 097, IEC 62116, IEC 61727, G99, G98, VDE
0126-1-1, RD 1699, C10-11
Safety EMC / Standard IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2
General Data
Operating Temperature
Range -45~60°C, >45°C Derating
Cooling Natural Cooling
Noise <30dB
Communication with BMS RS485; CAN
Weight 20.5kg
Size 330W x 580H x232D mm
Protection Degree IP65
Installation Style Wall-mounted
Warranty 5 years

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4. INSTALLATION
4.1. 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:
Datalogger x1

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4.2. Selecting the Mounting Area
This Sunsynk Ecco Hybrid Inverter is designed for outdoor use (IP65).
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 pos-
sibly lead to water/dampness penetrating the unit.
Areas lled with mineral oil or containing splashed oil or steam such as found in kitchens. It will deterio-
rate plastic parts of the unit, causing those parts to fail or allow 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 2000 metres above sea level).
Environments where precipitation or humidity are above 95%.
Areas where the air circulation is too low.
Areas exposed to direct sunlight.
Before connecting all wires, please take o the metal cover by removing screws as shown below:
Considering the following points before selecting where to install:
Please select a vertical wall with load-bearing capacity for installation, suitable for installation on concrete
or other non-ammable surfaces, installation is shown below.
Install this inverter at eye level in order to allow the LCD display to be read at all times.
The ambient temperature is recommended to be between -40~60ºC to ensure optimal operation.
Be sure to keep other objects and surfaces as shown in the diagram to guarantee sucient heat dissipa-
tion and enough space to remove wires.

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4.3. Mounting the Inverter
WARNING
For proper air circulation to dissipate heat, allow a clearance of approx. 50cm to the side and approx.
50cm above and below the unit. And 100cm to the front.
Install the indoor unit on the wall where the oor height is higher than 1600mm.
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.
Choose the recommended drill head (as shown below pic) to drill 4 holes in the wall, 62-70mm deep.
1. Use a proper hammer to t the expansion bolt into the holes.
2. Carry and hold the inverter, 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.
WARNING
Risk of injury (Heavy Object).
Remember that this inverter is heavy so users must be careful in handling the unit during installation
especially when mounting or removing it from a wall.

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4.4. Battery Connection
For safe operation and compliance, a separate DC over-current protector or disconnect device is required
between the battery and the inverter. In some applications, switching devices may not be required but
over-current protectors are still required. Refer to the typical amperage in the table below for the required
fuse or circuit breaker size.
Model Wire Size Cable(mm2) Torque value (max.)
3.6/5/6Kw 3AWG 25 5.2N.m
7.6/8kW 2AWG 35 24.5N.m

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Please follow below steps to implement battery connection:
1. Please choose a suitable battery cable with correct connector which can well t into the battery termi-
nals.
2. Use a suitable screwdriver to unscrew the bolts and t the battery connectors in, then fasten the bolt by
the screwdriver, make sure the bolts are lightened with torque of 5.2 N.M in clockwise direction.
3. Make sure polarity at both the battery and inverter is correctly connected.
4. In case of children touch or insects go into the inverter, please make sure the inverter connector is fas-
ten to waterproof position by twist it clockwise.
CAUTION
Reverse Polarity.
Before making the nal DC connection or closing DC breaker/disconnect, be sure positive(+) must be
connect to positive(+) and negative(-) must be connected to negative(-). Reverse polarity connection
on battery will damage the inverter.
CAUTION
All wiring/connecting must be performed by qualied personnel. Before making the nal DC con-
nection or closing the DC Breaker/disconnection device, ensure the inverter unit is wired correctly. A
reverse-polarity connection on the battery will damage the inverter.
24mm
8.4mm
DC Battery Input

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4.4.1. Function Port Denition

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4.4.2. Recommended DC Battery Protection
4.5. Connecting a Lithium Battery
When connecting a Lithium battery, follow the connection steps below and check ‘Setting up a Lithium Bat-
tery’ to connect with an inverter.
1. Connect the correct diameter of cable in accordance with the battery manufacture specications along
with recommended safety devices.
2. Connect a communication cable from the batteries to the inverter in compliance with the battery manu-
facturer guidelines. The cables have two ends, one to be specically connected to the BMS and another
to be connected to the inverter, do not connect them incorrectly.
3. Connect the power and communication cables to the inverter correctly.

ECCO SG05LP1 | User Manual20
PLEASE NOTE
When connecting more than one battery, ensure they are set in the conguration of ‘master and
slave’.
PLEASE NOTE
Depending on the battery type, the inverter should be capable of controlling the batteries 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 the section ‘Setting
Up a Lithium Battery’ and check whether the values are realistic. It is important that the charge and
discharge limits in that page match the numbers expected for the number of batteries physically con-
nected.