SunSynk SUNSYNK-6K-SG02LP1 User guide

R
ACK
-
MOUNTED
H
YBRID PARITY
(SUPER) INVERTER
INSTALLER MANUAL
SUNSYNK-6K-SG02LP1 / SUNSYNK-7.6K-SG02LP1
Global Tech Chin
a Ltd, 3 Floor, Wai Yip Industrial Building.
171 Wai Yip Street, Kwun Tong, Kowloon, Hong Kong.
Tel: [phone] Fax: [phone]
www.sunsynk.com / [e-mail]
www.globaltechhk.com
Version 5
.0 (05/20/2021)

INDEX
1. SAFETY 4
1.1. G
ENERAL
S
AFETY
I
NFORMATION
4
1.2. S
YMBOLS
4
1.3. S
AFETY
I
NSTRUCTIONS
5
1.4. D
ISPOSAL
R
EMARKS
5
2. PRODUCT INTRODUCTION 6
2.1. S
YSTEM
O
VERVIEW
6
3. TECHNICAL SPECIFICATIONS 8
3.1. S
YSTEM
D
IAGRAM
9
4. INSTALLATION 10
4.1. S
ELECTING THE
M
OUNTING
A
REA
10
4.2. M
OUNTING THE
I
NVERTER
11
4.3. B
ATTERY
C
ONNECTION
12
4.4. C
ONNECTING A
L
ITHIUM
B
ATTERY
13
4.5. B
ATTERY
T
EMPERATURE
C
ONNECTION
14
4.6. C
ONNECTING THE
AC 16
4.7. I
NSTALLING THE
CT C
OIL
18
4.8. E
ARTH
C
ONNECTION
(MANDATORY) 20
4.9. C
ONNECTING THE
PV 21
4.9.1. PV M
ODULE
S
ELECTION
21
4.9.2. PV M
ODULE
W
IRING
21
5. OPERATION 23
5.1. D
ISPLAY
23
5.2. S
WITCHING
ON/OFF 24
5.3. H
OME
P
AGE
24
5.4. S
TATUS
P
AGE
25
5.5. S
YSTEM
F
LOW
P
AGE
26
5.6. S
ETUP
P
AGE
27
5.7. S
ET
T
IME
(C
LOCK
) 28
5.8. S
ET
C
OMPANY
N
AME
/ B
EEPER
/ A
UTO DIM
28
5.9. F
ACTORY
R
ESET AND
L
OCK
C
ODE
29
5.10. B
ATTERY
S
ETUP
P
AGE
30
5.11. G
ENERATOR AND
B
ATTERY
P
AGE
31
5.12. B
ATTERY
D
ISCHARGE
P
AGE
34
5.13. S
ETTING
U
P A
L
ITHIUM
B
ATTERY
35
5.14. P
ROGRAM
C
HARGE
/ D
ISCHARGE
T
IMES
P
AGE
38

5.15. G
RID
S
UPPLY
V
OLTAGE AND
F
REQUENCY
– G
RID
S
UPPLY
P
AGE
41
5.15.1. R
EACTIVE POWER SETTING
(QV) 41
5.15.2. A
CTIVE POWER SETTING
(VW): 42
5.15.3. V
OLT
V
ARIABLE
M
ODE
(V
OLT
-
VAR
- VV) 43
5.16. A
DVANCED
S
ETTINGS FOR
P
ARALLELING
I
NVERTERS
46
5.17. S
OLAR
P
OWER
G
ENERATED
48
5.18. G
RID
P
OWER
49
5.19. A
DVANCED
S
ETTINGS FOR
W
IND
T
URBINE
49
5.20. A
DVANCED
S
ETTINGS FOR
A
UXILIARY
L
OAD
51
5.21. A
DVANCED
S
ETTINGS FOR
P
EAK
P
OWER
S
HAVING
52
5.22. F
AULT
C
ODES
53
6. COMMISSIONING 57
6.1. S
TARTUP
/ S
HUTDOWN
P
ROCEDURE
57
6.2. I
NFORMATION FOR
C
OMMISSIONING THE
I
NVERTER
57
6.3. GDFI F
AULT
58
7. MAINTENANCE 59
APPENDIX A 59
APPENDIX B 59
APPENDIX C 60
APPENDIX D 60
APPENDIX E 60

Page | 4
1. SAFETY
1.1. General Safety Information

This device should only be used in accordance o instructions within this manual and
in compliance with local, regional and national laws and regulations. Only allow this
device to be installed, operated, maintained, repaired by other persons who have also
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) suffering from a physical or
mental impairment that would affect 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.
1.2. Symbols
This symbol indicates information that if ignored, could result in personal
injury or even death due to incorrect handling.
This symbol indicates information that if ignored, could result in personal
injury or physical damage due to incorrect handling.
Indicates information that is considered important, but not hazard-related.
WARNING
CAUTION
NOTICE
SAFETY

Page | 5
1.3. Safety Instructions

Be sure to read this manual thoroughly before installation.

Do not attempt to install the inverter by yourself. Installation work must be carried out
in compliance with national wiring standards and by suitably qualified personnel only.
Do not turn on the power until all installation work is complete.

Do not disassemble the inverter. If you need repair or maintenance, contact a
professional service centre.

Always use an individual power supply line protected by a circuit breaker and operating
on all wires with a distance between contacts of at least 3mm for this unit.

The unit must be correctly grounded and the supply line must be equipped with a
suitable breaker and RCD to protect people.

Disconnect all wires/cables before performing any maintenance or cleaning to reduce
the risk of electrical shock.

The unit is not explosion-proof, so it should not be installed in an explosive
atmosphere.

Never touch electrical components immediately after the power supply has been
turned off since the system can still have residual energy, so electric shock may occur.
Therefore, after turning off the power, always wait 5 minutes before touching electrical
components.

This unit contains no user-serviceable parts. Always consult an authorised contractor
for repairs.
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 electronic-waste disposal. In case of further questions, please consult
your supplier. In some cases, the supplier can take care of proper disposal.
HIGH LIFE RISK DUE TO FIRE OR ELECTROCUTION.
The Sunsynk Three-Phase Hybrid Inverter can only be installed by a qualified
licensed electrical contractor. This is not a DIY product.
WARNING

Page | 6
2. PRODUCT INTRODUCTION
The Sunsynk Three-Phase Hybrid Inverter is a highly efficient power management tool
that allows the user to hit those ‘parity’ targets by managing power-flow from multiple
sources such as solar, mains power (grid) and generators, and then effectively storing and
releasing power as and when utilities require.
2.1. System Overview
INTERACTIVE

Easy and simple to understand display

Supporting Wi-Fi or GSM monitoring

Visual power flow screen

Smart settable 3-stage MPPT charging for optimized battery performance

Auxiliary load function

Parallel / multi invert function grid-tied and off-grid
COMPATIBLE

Compatible with main electrical grid voltages or power generators

Compatible with wind turbines

220V single phase, pure sinewave inverter

Self-consumption and feed-in to the grid

Auto restart while AC is recovering

Auto earth bond feature (Via a relay)
1. LCD Display
2. Function Buttons
3. ON/OFF Button
4. RS485 Port
5. CAN Bus Port
6. Grid Port
7. Gen Port
8. Load Port
9. MPPT Inputs
10. I/O Inputs
11. Battery Input Connections
12. DC Switch
PRODUCT INTRODUCTION

Page | 7
CONFIGURABLE

Fully programmable controller

Programmable supply priority for battery or grid

Programmable multiple operation modes: on-grid/off-grid & UPS

Configurable battery charging - current/voltage based on applications by LCD setting

Configurable 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 overflow to grid
APPLICATIONS

Marine (vessel power management)

Power shedding (home/office/factory)

UPS (fuel-saving systems)

Remote locations with solar and wind generators

Building sites

Military locations

Telecommunication

Page | 8
3. TECHNICAL SPECIFICATIONS
Model SUNSYNK-6K-SG02LP1 SUNSYNK-7.6K-SG02LP1
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range 40~60V
Max. Charging Current 135A 190A
Max. Discharging Current 135A 190A
Charging Curve 3 Stages/Equalisation
External Temperature Sensor Optional
Charging Strategy for Li-Ion Battery Self-Adaptation to BMS
PV String Input Data
Max. DC Input Power 7800W 9880W
PV Input Voltage 370V (100V~500V)
MPPT Range 125~425V
Start-up Voltage 150V
PV Input Current 18A+9A 22A+22A
No. of MPPT Trackers 2
No. of Strings Per MPPT Tracker 2+1 2+2
AC Output Data
Rated AC Output and UPS Power 6000W 7600W
Max. AC Power 6600W 8360W
Peak Power (off-grid) 2 times of rated power, 10 S
AC Output Rated Current 25A 31.7A/33A
Max AC Output Current 27.5A 34.9A/36.3A
Max Continuous AC Passthrough 40A 50A
Output Frequency and Voltage 50/60Hz; 120/240Vac(split phase), 208Vac(2/3), 230Vac(single phase)
Grid Type Split phase, 2/3 phase, Single phase
Current Harmonic Distortion THD<3%(Linear load<1.5%)
Efficiency
Max. Efficiency 97.60%
MPPT Efficiency 96.50%
Euro Efficiency 99.90%
Protection
PV Arc Fault Detection Integrated (Except European Type)
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 Integrated
Certifications and Standards
Grid Regulation UL1741, IEEE1547, RULE21, VDE0126, AS4777, NRS2017, G98,G99, IEC61683,
IEC62116, IEC61727
Safety Regulation IEC62109-1, IEC62109-2
EMC EN61000-6-1, EN61000-6-3, FCC 15 Class B
General Data
Operating Temperature Range -25~60°C, >45°C Derating
Cooling Fan
Noise <30
Communication with BMS RS485; CAN
Warranty 5 years
TECHNICAL SPECIFICATIONS

Page | 9
3.1. System Diagram

Page | 10
4. INSTALLATION
4.1. Selecting the Mounting Area
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 filled with mineral oil or containing splashed oil or steam such as found in
kitchens. It will deteriorate plastic parts of the unit, causing those parts to fail or allow
water/damp to penetrate the unit.

Areas that generate substances that adversely affect 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 electricity reliably.

Areas that can cause combustible gas to leak, which contains suspended carbon-fibre
or flammable dust, or volatile inflammable 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 fire 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 are above 95%

Areas where the air circulation is too low.
INSTALLATION

Page | 11
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.

If children under 10 years old may approach the unit, take preventive measures so that
they cannot reach and touch the unit.

Install the indoor unit on the wall where the height from the floors is higher than
1600mm.

For proper heat dissipation, allow a clearance of approximately 500mm to the side,
500mm above nd below the unit, and 1000mm to the front of the unit.
4.2. Mounting the Inverter

An appropriate ambient temperature is between -25 ~ 60°C to ensure optimal operation.

Be sure to keep other objects and surfaces as shown in the figure to guarantee sufficient
heat dissipation and have enough space to remove wires.

For proper air circulation to dissipate heat, allow a clearance of approximately 50cm to
the side.

Page | 12
4.3. Battery Connection

Battery connection
For safe operation and compliance, an individual DC overcurrent protector or
disconnection device is required for the connection of the battery and the inverter. Users
are recommended to utilise a suitable fuse and DC isolator (see next page). In some
applications, switching devices may not be required, but overcurrent protectors must be
used. Please refer to the typical amperage in the table below for the required fuse or circuit
breaker size.
A minimum battery cable size of 50mm diameter is recommended for the 6kW and
7.6kW inverters.
Risk of injury (Heavy Object)
Remember that this inverter is heavy so users must be careful in handling the
unit during installation.
CAUTION

Page | 13

Recommended DC Surge Protector
:
4.4. Connecting a Lithium Battery
When connecting a Lithium battery, follow the connection steps below and check ‘Setting
up a Lithium Battery’ to connect with an inverter.
1) Connect the correct diameter of cable in accordance with the battery manufacture
specifications along with recommended safety devices.
2) Connect a communication cable from the batteries to the inverter in compliance
with the battery manufacturer guidelines. The cables have two ends, one to be
specifically 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.
All wiring/connecting must be performed by qualified personnel.
Before making the final DC connection 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.
CAUTION

Page | 14
4.5. Battery Temperature Connection
When connecting more than one battery, ensure they are set in the configuration of
‘master and slave’.
NOTICE

Page | 15
Without a remote temperature sensor, lead-acid batteries may undercharge or overcharge
depending on the ambient temperature of the installation environment. This may result in
a fire hazard.
Depending on the battery type, the inverter should be capable of controlling the
batteries BMS. Therefore, you need to set the protocol of the BMS on both the battery
and the inverter.
When using more than one battery, the first battery will be the master, and the other
batteries will be the slaves. Please, check the battery manufacturer specification for
proper operation.
To verify if the battery is actually communicating access the Li BMS menu as detailed
in section ‘Setting Up a Lithium Battery’ and check whether the values are realistic or
not. It is important that the charge and discharge limits in that page match the numbers
expected for the number of batteries physically connected.
NOTICE

Page | 16
4.6. Connecting the AC
GEN/AUX Generator connection.
GRID This works like a conventional grid-tied inverter. It is both an input
and output connection for non-essential load and supply
LOAD Connection of essential loads such as lighting, security systems,
and Internet
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 off the
AC breaker or disconnector first.
2) Remove 10mm sleeve from each wire, unscrew the bolts, insert the wires according
to the polarities indicated on the terminal block and tighten the terminal screws.
Ensure the connection is complete.
All wiring and cable sizes must comply with your particular country’s wiring
regulations and Codes of Practices
Ensure that suitable disconnection devices and RCDs are fitted.
CAUTION

Page | 17
3) Then, insert AC output wires according to polarities indicated on the terminal block
and tighten the terminal. Make sure to connect corresponding N wires and PE wires
to related terminals as well.
4) Ensure the wires are securely connected.
5) Check that the AC power source is isolated before attempting to connect it to the
inverter. Insert AC output wires according to the polarities indicated on the terminal
block and tighten the terminal screws. Be sure to connect corresponding N wires
and PE wires to the correct terminals and ensure the wires are securely connected.

Recommended AC Surge Protector
Please ensure you use suitable protection devices. Switchgear and fuses must be
following the local wiring standards. A figure of the complete system is presented below.

Page | 18
4.7. Installing the CT Coil
The CT coil is one of the most important parts of the Sunsynk Parity inverter. This device
reduces the power of the inverter to prevent feeding power to the grid. This feature is also
known as "Zero Export".
1) Fit the coil (sensor) around the live cable on the main fuse feeding the building and
run the cable back to the inverter. This cable can be extended up to an extra 10m
using a similar cable.
2) Connect the other end of the CT coil into the inverter terminals marked as CT coil.

Page | 19
IMPORTANT
If the CT coil is fitted in the wrong
way then this variable will have
negative instead of positive
values when the power is flowing
into the house/inverter. Also, the
inverter export limiting function
will not work properly.

Page | 20
4.8. Earth Connection (MANDATORY)
An Earth Cable shall be connected to earth plate on the grid size in order to prevent electric
shock if the original protective conductor fails.
All neutrals can be linked together to maintain the neutral bond. When Neural Earth bond
is required for ‘Off-grid’ operation, then it has to be removed on ‘Grid-Tied’ operation.
If an Earth Bond is required between neutral and earth and your system is a hybrid system
then you can have a permanent earth wire since this can cause faults with an RCD before
the inverter.
Since the inverter is a true hybrid then the bond must only be made when the inverter is
operating in Islanding Mode. To accommodate this, Sunsynk provides an AC output,
which is connected to the A/T/S connections whenever the inverter is running on Island
Mode. Therefore, you can simply connect the coil of an AC relay to the ATS 240
connections. Next, you need to select Signal Island Mode on the battery charge menu
(click on the gear icon -> battery icon), as shown in the figure below.