SunSynk Hybrid Inverter with a Generator Instruction Manual

v1 (04/17/21)
Installing the Sunsynk Hybrid
Inverter with a Generator
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] / www.globaltechhk.com

INDEX
1. INTRODUCTION ........................................................................................................................ 3
2. SAFETY ..................................................................................................................................... 3
2.1. SYMBOLS ................................................................................................................................. 4
2.2. SAFETY INSTRUCTIONS ................................................................................................................ 4
3. COMMISSIONING ..................................................................................................................... 5
3.1. CONNECTING THE BATTERIES ........................................................................................................ 5
3.2. CONNECTING THE LOAD ............................................................................................................... 6
3.3. CONNECTING THE GENERATOR ...................................................................................................... 6
3.4. CONNECTING THE PV .................................................................................................................. 7
3.5. SYSTEM DIAGRAM ..................................................................................................................... 9
3.6. POWER UP ............................................................................................................................. 10
3.7. SETTING UP A LITHIUM BATTERY ................................................................................................. 10
3.8. TESTING THE GENERATOR .......................................................................................................... 15
3.9. CONNECTING THE ATS TO THE INVERTER ....................................................................................... 16
3.10. SOFTWARE UPDATE ................................................................................................................ 18
4. PROGRAMMING THE INVERTER TO WORK WITH A GENERATOR ............................................. 20
4.1. SETTING UP TIME AND DATE ...................................................................................................... 21
4.2. SETTING UP THE GRID ............................................................................................................... 22
4.3. SETTING UP THE BATTERIES ........................................................................................................ 23
4.4. SELECTING THE AUX PORT .......................................................................................................... 27
4.5. SELECT SYSTEM MODE .............................................................................................................. 29
4.6. USING THE GRID PORT .............................................................................................................. 33
5. FINAL CONSIDERATIONS ......................................................................................................... 34

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1. INTRODUCTION
This manual presents instructions to installing the Sunsynk Hybrid Inverter with a
generator. All the procedures described in this manual should be followed carefully. If
you have questions or concerns about the operation and maintenance of this product,
please contact our customer support.
All personnel involved in the installation, setup, operation, maintenance, and repair of
this machine 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.
2. SAFETY
 Use this device only in accordance with this instruction manual, as well as all
applicable local and national laws and regulations. Only allow this device to be
installed, operated, maintained, repaired, etc. by others who have also read and
understood the user manual. Ensure that this manual is included with this device if
it is ever given or sold to a third party.
 DO NOT allow minors, untrained personnel, or personnel suffering from physical or
mental impairment that would affect their ability to follow this manual to install,
operate, maintain, or repair this device.
 Any untrained personnel who might be near the device while it is in operation MUST
be informed that it is dangerous and fully instructed on how to avoid injury during its
use.

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2.1. Symbols
This symbol indicates information that, if ignored, could result possibly
in personal injury or even death due to incorrect handling.
This symbol indicates information that, if ignored, could possibly result
in personal injury or physical damage due to incorrect handling.
Indicates information considered important, but not hazard-related.
2.2. Safety Instructions
 Be sure to read this manual thoroughly before installation.
 Do not attempt to install the inverter by yourself. Installation work must be performed
following national wiring standards by authorised 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 before performing any maintenace or clearning to reduce the
risk of electric 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.
WARNING
CAUTION
NOTICE
HIGH LIFE RISK DUE TO FIRE OR ELECTROCUTION.
The Sunsynk Hybrid Inverter can only be installed by a qualified licensed
electrical contractor. This is not a DIY product.
WARNING

5
3. COMMISSIONING
3.1. Connecting the Batteries
When connecting a Lithium battery, follow the connection steps bellow and then check
section 3.7 “Setting Up a Lithium Battery” to set it up in the inverter:
1) Connect a properly power cable following the battery manufacturer specification and
recommend safety devices.
2) Connect communication cable from the batteries to the inverter, properly following
the battery manufacturer specifications. The cables have two ends, one to be
specifically connected to the BMS and the another one to be connected to the
inverter, do not mix them up.
3) Connect the power and communication cables to the inverter correctly.
 Battery connection of the 3.6kW/5.5kW model
When connecting more batteries, ensure the they are set in the correct
configuration master and slave.
NOTICE

6
 Battery connection of the 8kW model
For safe operation and compliance, an individual DC overcurrent protector or
disconnection device is required for the connection of the battery and the inverter. It is
recommended to utilize a suitable fuse and DC isolator (see next page). In some
applications, switching devices may not be required but overcurrent protectors are still
required.
3.2. Connecting the Load
Connect the load to the “Load” port in the inverter utilizing appropriate protection
devices.
3.3. Connecting the Generator
Connect the generator to the “Gen” port.
 Bottom view of the 3.6kW/5.5kW model

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 Bottom view of the 8kW model
3.4. Connecting the PV
The 3.6kW and 5.5kW models have only one MPPT controller with a maximum input
current of 9Amp.
The 8.8kW inverter has two built-in MPPT controllers, MPPT 1 and MPPT 2. Therefore,
two individual arrays can be connected to each MPPT for better performance. The
maximum current of the array connected to each MPPT is 18Amp.
 Before connecting to PV modules, install a separate DC circuit breaker between the
inverter and PV modules.
 To avoid any malfunction, do not connect any PV modules with possible current
leakage to the inverter. For example, grounded PV modules will cause current
leakage to the inverter. Open-circuit voltage (Voc) of PV modules does not exceed
max. PV array open-circuit voltage open-circuit voltage (Voc) of PV modules should
be higher than min. start voltage.

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8.8 kW PV Connection
5.5kW PV panels are connected via the MC4 connectors located at the bottom of
the inverter
 Before connecting to PV modules, install a separate DC circuit breaker between the
inverter and PV modules.
 To avoid any malfunction, do not connect any PV modules with possible current
leakage to the inverter. For example, grounded PV modules will cause current
leakage to the inverter. Open-circuit voltage (Voc) of PV modules does not exceed
max. PV array open-circuit voltage open-circuit voltage (Voc) of PV modules should
be higher than min. start voltage.

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3.5. System Diagram
Ensure you have used appropriate safety devices in accordance with local
wiring regulations.
WARNING

10
3.6. Power Up
1) Switch on the inverter by pressing the green start button.
2) Switch on the Battery Isolator.
3)
Switch on the Solar Isolator if solar is used.
4)
The system should now start running.
3.7. Setting Up a Lithium Battery
The first thing to do after the system power-up is to check that the lithium battery is
communicating correctly with the inverter. If it is not communicating with the inverter,
you need to set up the battery on the Battery Setup screen before moving forward with
the commissioning.
The startup should be performed by a qualified engineer since there is a high
risk of electruction while the covers are off.
WARNING

11
1) On the Home Page, press the gear icon on the top-right corner.
2) Click on the Battery icon.
3) On the Battery Setup screen:

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a) Select “Lithium”.
b) Select the communication protocol specified by the manufacturer guide or select
from the list below.
c) Press “OK”.
Brand Model
48V
Storage
Inverter
RS485
or CAN
Inverter
Setup Notes
Pylon or
Equivalent
US2000  CAN 0
RS485 5
US20000-PLUS  CAN 0
RS485 5
DYNESS
B4850  CAN 0
B48100  CAN 0 Short Lione 6&7 at
inverter side
POWERBOX F  CAN 0
POWERBOX 9.6  CAN 0
SolarMD
SS4037  CAN To be used with V2
Logger
http://solarmd.co.za/inv
erter-compatibility-
solarmd/sunsynk-and-
solar-md/
SS4074  CAN
SS202  CAN
Freedomwon
Freedom Lite
Commercial 52V
and HV Models
 CAN
www.freedomwon.co.z
a/storage/2019/09/free
dom-lite-commercial-
installation-manual-
rev-2-september-
2019.pdf
REVOV 1st and 2nd life  RS485
PINS 1&2 must be
Swopped at Battery
side.
SHOTO No Voltage Base Charge
settings must be used.
HUBBLE No Voltage Base Charge
settings must be used.
CCGX 48Vxxxx  CAN 0 Need confirm CAN_H
CAN_L
SACRED
SUN 48Vxxxx  RS485 1 Cut Line 3, 6, 8
SOLAX 48Vxxxx  CAN 0
KOK 48Vxxxx  RS485 2
UZ ENERGY
UZ-EB51.2-100-
A11  CAN 0
Topakpower 48Vxxxx  RS485 4

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Hai Ying HY48050  CAN 0
Re-Power LS4850  CAN 0
Herewin
Technology HY48050  CAN 0
GenixGreen  RS485 6
Sunwoda H4850M  RS485 7
X-ratong 48Vxxxx  RS485 8
Enershare
Technology BMS48150  RS485 9
PYLON 3.0  RS485 12
Murata  RS485 11
GS10000  RS485 3
BPE  CAN 0
ABOET  CAN 0
VISION
Group  CAN 13
Alpha  CAN 0
Backbone
B-LFP51.2V
100Ah and B-
LFP51.2V
125Ah
 CAN 0
 Float voltage 54.5V
 Absorption V 55.00V
 Disable equalisation
0 Days
 Shutdown 20%
 Low Batt 35%
 Restart 50%
4) Go back to the Settings Page and click on “LI BMS”:

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5) You should see a screen with the BMS information, like the figure below:
If some information is not displayed correctly on the screen, there is a communication
error. Thus, stop and fix this problem. Follow the steps below:
a) Check if your data cable is the correct type.
b) Check if you are plugging the cable into the correct sockets. Usually, RS 485 is
employed, but some battery manufacturers use others.
Some types of lithium battery the BMS cannot be controlled by Sunsynk inverter.
In this case, treat the battery as a lead-acid type and set the charging and
discharging protocol following the battery manufacturer specification.
NOTICE

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3.8. Testing the Generator
After setting up the battery, follow the steps below to test the generator:
1) Fit a switch directly to the A/T/S leads.
2) Switch on the generator to automatic.
3) Plug the generator into the inverter.
4) Switch all isolators on.
5) Close the switch.
6) The generator should start up automatically.
7) Open the switch. The generator should stop.
It is important to check if your generator comes with this simple automatic function
because if it doesn’t, the generator will not be able to run automatically from the
inverter.
NOTICE

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3.9. Connecting the ATS to the Inverter
The inverter has three relays. Depending upon the function that is needed, these
relays will operate differently.
Both GV and GS can start the generator, but this depends upon the setting you
select. GV and GS are both dry contacts N/ O (normally open).
For general operation, we will use the GV Terminal.
If you are using the Earth bond feature, then GS will start the generator. But, if you
are not using the earth bond feature, then GV will start the generator.
NOTICE

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If you are using the 8.8kW inverter, then this connection would be terminals 7+8.

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3.10. Software Update
Check if you need to update the software running in the inverter. For this manual it
refers to:
MCU 2159 - 3.6K
MCU 3160 - 5.5K
MCU 3878 - 8.8K
UI Version E417
The software version is show on the navigation page:
Before going on site, check if your software is updated. We strongly recommend you
have it updated.
You can update the software in three ways:
1) Wi-Fi data logger.
2) GSM data logger.
3) Hand held programmer.
The easiest method is to use a GSM data logger, which is simply plugged into the
bottom of the unit, and there is no need to carry out any setup. The only drawback with
the GSM data logger is that the updating time is long and can typically take up to 2
hours.
The Wi-Fi data logger relies on a good Wi-Fi signal and needs to be set up. Please
refer to the data logger setup procedure.

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If an update is required, then please contact one of the Sunsynk service engineers with
the data logger number, and the update can be done remotely. When carrying out an
update, please be patient as it can take some time.
For very experienced engineers then the update can be done using a handheld
programmer but care has to be taken if done incorrectly will damage the inverter
NOTICE

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4. PROGRAMMING THE INVERTER TO WORK WITH A GENERATOR
Before programming the inverter, ensure that:
1) The battery is communicating properly.
2) The inverter starts up correctly.
3) The generator A/T/S is functioning correctly.
4) The inverter’s software is updated.
Now that you have performed all the connections and all of the peripherals are working
well, it is time to program the inverter. The following sections will describe how to do
that.