Growcol 30 kW User manual

- 0 -
V1.0
User Manual
Energy Storage Inverter

CONTENTS
1About This Manual ............................................................................................................ 1
1.1Preface ............................................................................................................................1
1.2Applicable products ........................................................................................................1
1.3 Content abstract ............................................................................................................1
1.4 Symbols..........................................................................................................................1
2Safety Instructions............................................................................................................. 3
2.1 Personnel Requirements................................................................................................3
2.2 Safety Warning Operation .............................................................................................3
2.3 Device Identification Protection ....................................................................................3
2.4 Electricity Safety Matters...............................................................................................4
2.5 Environmental Space Requirements..............................................................................4
2.6 On-line test specification ...............................................................................................5
2.7 Touch Screen Parameter Setting....................................................................................5
2.8 Maintenance Or Overhaul Specifications ......................................................................5
2.9 Product Scrapping..........................................................................................................6
2.10 Other Considerations...................................................................................................6
3Product introduction ......................................................................................................... 7
3.1 Introduction of energy storage system..........................................................................7
3.2 Product Appearance.......................................................................................................8
3.3 Product Application........................................................................................................9
3.4 Product Features............................................................................................................9
3.5 Communication Solutions............................................................................................10
3.6 Technical Parmeter Table.............................................................................................11
4Inverter Mode and Function ........................................................................................... 12
4.1 Working Mode Introduction ........................................................................................12
4.2 Introduction of Inverter Status ....................................................................................13
5Mechanical Installation Guidance ................................................................................... 15
5.1 Precautions Before Installation....................................................................................15
5.2 Installation Process ......................................................................................................15
5.3 Installation Preparation ...............................................................................................16
5.4 Machine Transportation ..............................................................................................17
5.5 Location and Fixation...................................................................................................19
5.6 Design And Installation Of Air Ducts............................................................................21
6Electrical Installation Guidance ....................................................................................... 23

6.1 Cable Requirements.....................................................................................................23
6.2 Connection Terminal....................................................................................................24
6.3 Wiring Specification .....................................................................................................24
6.4 Fixation and Protection of Connecting Cables.............................................................25
6.5 Remove Switch Baffle And Lower Panel ......................................................................25
6.6 Installation dimension wiring diagram.........................................................................26
6.7 DC Side Wiring..............................................................................................................26
6.8 AC Side Wiring..............................................................................................................27
6.9 Communication cable wiring .......................................................................................28
6.10 System Grounding......................................................................................................28
6.11 Installation Is Complete .............................................................................................29
7Test Run........................................................................................................................... 30
7.1 Pre-Boot Check.............................................................................................................30
7.2 Start-Up Operation Flow..............................................................................................31
7.3 Shutdown Operation Flow ...........................................................................................34
8Touch Screen Operational Guidelines............................................................................. 36
8.1 Introduction of Touch Screen ......................................................................................36
8.2 Alarm Buzzer ................................................................................................................37
8.3 Communication Settings..............................................................................................37
8.4 Main interfaces introduction .......................................................................................38
8.5 Advanced Settings........................................................................................................45
8.6 Energy storage inverter program upgrade...................................................................46
9Maintenance and troubleshooting.................................................................................. 47
9.1 Explain..........................................................................................................................47
9.2 Matters Needing Attention..........................................................................................47
9.3 Fault Handling ..............................................................................................................49
Appendix I: Quality Assurance................................................................................................. 56

1
1About This Manual
1.1Preface
Dear Customer:
Thank you for using the Energy Storage Inverter. We sincerely hope that our product can
meet your needs. We also invite you to put forward more valuable suggestions on the
product performance and function.
1.2Applicable products
This manual is applicable to the product types as follows:
Type power
Split model
integrated model
Integrated model
30 kW
√
√
50 kW
√
100 kW
√
150 kW
√
√
250 kW
√
√
500 kW
√
√
1.3 Content abstract
For users, the manual details the product information, installation instructions, operation,
maintenance and troubleshooting. Before installing and debugging or running any
equipment, the user must read and understand all the instructions contained in this
manual and be familiar with the relevant safety symbols.
Readers need to have a certain degree of electrical theory, electrical wiring and
professional mechanical knowledge. Before installing this product, please read this
manual carefully and ensure that the relevant personnel can easily access and use it.
The contents, pictures, logos, symbols, etc. used in this manual are owned by the
company. Non-company personnel are not allowed to publicly reproduce all or part of
the content without written authorization.
1.4 Symbols
In order to ensure the safety of the user's personal and property when using the product,
and to better use the product, the manual provides relevant information and highlights it
with appropriate symbols.
The following list of symbolic hints may be used in this manual, please read them carefully.

2
WARNING
DANGER
NOTE
CAUTION
Danger" indicates that there is a high potential hazard which, if not avoided, will
result in death or serious injury.
Warning" indicates that there is a moderate potential hazard which, if not avoided,
may result in death or serious injury.
"Caution" indicates that there is a low potential hazard which, if not avoided, may
result in moderate or minor injury.
"Note" indicates that there is a potential risk which, if not avoided, may result in
abnormal operation of the equipment or property damage.
"Instruction" is the additional information in the manual to emphasize or supplement
the content. It may also provide tips or tricks for optimized use of the product, which
can help you solve one problem or save your time.
Please pay attention to the warning labels on the product, which include:
Label
Meaning
This label indicates there is high voltage within the product, and touch
maycause an electric shock.
This symbol indicates that the temperature here is higher than the acceptable
range of the human body, and do not contact in order to avoid personal injury.
This symbol indicates here is the protective grounding (PE) terminal, and solid
grounding is needed to ensure operators’ safety.

3
2Safety Instructions
2.1 Personnel Requirements
Only professional electricians or qualified personnel can operate the product.
Operators should be fully familiar with the structure and working principle of the whole energy storage
system.
Operators should be fully familiar with this manual " Energy Storage Inverter User Manual"
Operators should be fully familiar with the relevant standards in the country/area where the project is
located.
It is strictly forbidden to maintain or overhaul the equipment when it is live!
At least two persons must be ensured to be present during maintenance or
overhaul of the equipment. The equipment has been disconnected safely and
waited for 15 minutes until the inverter discharge is completed before the
maintenance or maintenance operation can be carried out.
2.2 Safety Warning Operation
When installing, routine maintenance and overhaul of energy storage inverter, it is
necessary to avoid incorrect operation or accidents when personnel are close to each other.
Please observe the following:
In order to prevent mis-closing of the switch, a clear mark should be set up at the front
and rear switches of the energy storage inverter.
Set up warning signs or safety cordons near the operation area.
After the completion of maintenance or overhaul, be sure to pull out the key of the
cabinet door and keep it stored safely.
2.3 Device Identification Protection
The warning signs on the device and cabinet of the energy storage inverter contain
important information for safe operation of the energy storage inverter. Removal or
damage is strictly prohibited!
A nameplate is installed inside the front door of the energy storage inverter. The
nameplate contains important parameter information related to the product. Removal or
damage is strictly prohibited!
Make sure the device logo is clear and readable at all times.
Once the device logo is damaged or blurred, it must be replaced immediately.
WARNING
CAUTION

4
2.4 Electricity Safety Matters
2.4.1 Electrical safety
There is a lethal high voltage inside the product!！
Do not touch terminals or conductors connected to power network circuits.
Attention should be paid to all instructions or safety instructions for connection to the
power grid and to the warning signs on the products.
Observe the safety precautions listed in this manual and other relevant documents of
the equipment.
Damaged equipment or system failure may cause electric shock or fire!！
Preliminary visual inspection before operation to check whether the equipment is
damaged or there are other dangers.
Check the safety of other external equipment or circuit connections.
Confirm that the equipment is in a safe state before it can be operated.
2.4.2 Electrostatic Protection
Electrostatic sensors on PCB or elsewhere can be damaged by improper operation or contact
of operators.
Operators are advised to avoid unnecessary circuit board contact.
Operators should abide by the electrostatic protection rules, such as wearing anti-
static hand rings.
2.4.3 Notes for Energy Storage Batteries
There is a fatal high voltage between the positive and negative electrodes of the
energy storage battery pack connected with the energy storage inverter.
When maintaining the equipment, ensure that the connection between the energy
storage inverter and the energy storage battery pack is completely disconnected.
2.5 Environmental Space Requirements
2.5.1 Escape Channel Requirements
In order to ensure that staff members can evacuate the scene promptly in case of accidents,
please observe the following items:
Do not place flammable and explosive materials around the inverter.
It is strictly forbidden to pile up debris in the escape route or occupy the escape route in
any form.
2.5.2 Moisture Protection
Do not use the inverter in excess of the specified humid environments listed!
Damage to the energy storage inverter is very likely in humid environment!！
In order to ensure the normal use of various functions of energy storage inverter, please
observe the following items:：
Do not open the cabinet door when the air humidity is over 90%.
Avoid opening the cabinet door in rainy or wet weather to maintain or repair the
energy storage inverter.
DANGER
DANGER
CAUTION
DANGER
CAUTION

5
2.6 On-line test specification
2.6.1 On-line Test
There is a high voltage in the equipment. Accidental contact may lead to fatal shock hazard.
Therefore, in live measurement, it should:：
Ensure adequate levels of protection (such as wearing insulating gloves, insulating
shoes, etc.).
At least two persons must be ensured to be on site to ensure personal safety.
2.6.2 Use of Measuring Equipment
In order to ensure that the electrical parameters meet the requirements, it is necessary to
use relevant electrical measuring equipment when conducting electrical connection and
trial operation of energy storage inverter.
Selection of measuring range, usable conditions and other high-quality measuring
equipment that meet the requirements of the site.
Ensure that the connection and use of measuring equipment are correct and
standardized so as to avoid the danger of arcing.
2.7 Touch Screen Parameter Setting
The parameters of touch screen are closely related to the operation of energy storage
inverter. These parameters can only be modified after reliable analysis and evaluation of
the operation status of the system and energy storage inverter.
Using inappropriate parameter settings may affect the normal function and
capabilities of energy the storage inverter.
Only authorized professionals can set the parameters of energy storage inverters.
2.8 Maintenance Or Overhaul Specifications
The following points should be noted when performing maintenance or maintenance
operations on equipment:：
Securely mark and ensure that the energy storage inverter will not be accidentally re-
energized.
Use a multimeter to ensure that the internal discharge of the energy storage inverter is
completed.
Ensure that the equipment is well grounded.
Any live parts must be covered with insulating materials.
After the energy storage inverter is switched off and the AC/DC power supply is
disconnected, the front door can be opened after at least 15 minutes to maintain or
repair the energy storage inverter.
During the whole process of maintenance and overhaul, it is necessary to ensure
adequate escape route or space.
DANGER
WARNING
WARNING

6
2.9 Product Scrapping
When the energy storage inverter needs to be discarded, it can not be treated as
conventional waste, we will accept this product as per W and there may be a handling fee.
Alternatively contact the local authorized professional recycling agency.
2.10 Other Considerations
The following protective or emergency measures shall be taken according to the actual
operation summary:
When maintaining and repairing the equipment, relevant personnel should take
appropriate protective measures according to their needs, such as wearing noise-proof
earplugs, insulating shoes and scald-proof gloves.
If installation site of energy storage inverter is remote, emergency rescue facilities should
be considered in the event of an accident.
Use all necessary supplementary measures to ensure the safety of personnel and
equipment.
All operations of energy storage inverters must meet the relevant national/regional
standards.
All descriptions in this manual are for energy storage inverters with standard configurations. If you have
special needs, please give instructions to us. When ordering. Specifically, please refer to the actual
products you receive.
This manual does not cover all possible situations during operation, maintenance and overhaul. If you
encounter situations that are not explained in the manual ,Please contact us
CAUTION

7
3Product introduction
3.1 Introduction of energy storage system
Energy Storage System (ESS) is energy storage, which refers to the storage of a form of energy in
the same form or converted into another form of energy through a medium or equipment. A
cyclic process in which a specific form of energy is released. The energy storage system is an
important part of the "generating-transmission-transformation-distribution-utilization" link of
the power grid, and an indispensable part of the energy Internet and smart energy.
Power generation side: The energy storage system can participate in the rapid response
frequency regulation service, improve the reserve capacity of the power grid, and can provide
continuous power supply to end users from renewable energy sources such as wind energy and
solar energy. Overcome its volatility, intermittent and other shortcomings;
Transmission and distribution link: The energy storage system can effectively improve the
reliability of the transmission system and improve the quality of electric energy;
User side: The distributed energy storage system optimizes electricity consumption under the
coordinated control of the smart microgrid energy management system, reduces electricity
consumption costs, and maintains the high quality of electricity.
In the ESS, the energy conversion is mainly realized by the power conversion system (PCS for
short), as shown in Figure 3-1below:
Figure 3-1 Application scenarios of energy storage converters in ESS
Transmission and distribution side
Energy Storage Inverter

8
3.2 Product Appearance
The appearance and external components of the energy storage inverter are described as follows:
※: 250kW and 500kW are split models, 250kW consists of a photovoltaic controller and an
energy storage inverter, and 500kW consists of two photovoltaic controllers and an energy
storage inverter.
High Voltage Electricity Danger！
When pressing the emergency shutdown button, the AC/DC connection terminal of
the energy storage inverter is still live!
There is still a fatal high voltage inside the energy storage inverter!
The emergency shutdown button can be used to turn off the energy storage inverter only in
a fault scenario!
If the emergency shutdown button is not properly used, it can cause damage to the energy
storage inverter.
If the emergency shutdown button is pressed in the case of load, the related parts of the
energy storage inverter will encounter greater stresses and may fail.
WARNING
30 kW
50 kW
100 kW
150 kW
250 kW
500 kW
EPO emergency stop button
WARNING

9
3.3 Product Application
The energy storage converters are suitable for mine off-grid, island off-grid, villages and towns
without electricity (power shortage), rural off-grid, energy storage converter product application
as shown in Figure 3-2 below:
Figure 3-2 Product application
3.4 Product Features
The energy storage inverter adopts advanced digital control technology, which optimizes the
control performance and improves the reliability of the system. It is suitable for different battery
charging and discharging needs. Its main performance characteristics are as follows:Integrated
solution to support simultaneous access of load, battery, grid or diesel generator and
photovoltaic.
Supports multiple working modes of spontaneous self-use, battery priority, peak shaving and
valley filling.
BMS system communication supports RS485, CAN.
Can accept EMS dispatch, communication methods include RS485, Ethernet, etc.
Integrated EMS function power supply is safe and stable, and the utilization of new energy
is maximized.
Flexible support for lithium battery and lead-acid battery, battery capacity and discharge
time prediction.
The photovoltaic controller can be expanded, which is convenient for flexible configuration
of photovoltaic capacity.
Off-grid belt has strong three-phase unbalanced load capacity.
Power frequency design, strong impact resistance.
The dual-channel auxiliary power supply mode is adopted, and the redundant design
improves reliability.
Independent air duct design, excellent heat dissipation design.
Energy storage Inverter
PV
User load
Battery
Generator
Grid
(Either generator or grid,or
connected through ATS)

10
3.5 Communication Solutions
3.5.1 BMS Communication scheme
Through CAN/RS485 communication cable, energy storage inverter can communicate with BMS
to realize data transmission.
Figure3-3 BMS transmits data through CAN/RS485
3.5.2 EMS Communication scheme
Through Ethernet/RS485 communication line, the energy storage inverter can communicate with
EMS, and monitor the energy storage system independently designed. The software can monitor
the energy storage inverter in real time .
Figure3-4 EMS transmits data through RS485/Ethernet
3.5.3 Communication Scheme of Upper Computer
The energy storage inverter communicates with the host computer through RS485 inverter.
Several energy storage inverters are connected through 485 bus, and finally connected to
the upper terminal.
Figure3-5 PC transmits data through RS485 inverter
PCS
BMS
RS485/Ethernet
EMS
PCS
PCS
C
CAN/RS485

11
3.6 Technical Parmeter Table
Type
30 kW
50 kW
100 kW
150 kW
250 kW
500 kW
AC (Grid Connection)
Max output power[kVA]
33kVA
55kVA
110kVA
165kVA
275kVA
550kVA
Rated Power [kW]
30kW
50kW
100kW
150kW
250kW
500kW
Rated Voltage [V]
400V
Rated Current [A]
43A
72A
144A
216A
361A
722A
Voltage Range[V]
320V-460V
Rated Frequency [Hz]
50/60Hz
Frequency Range [Hz]
45-55/55-65Hz
THDI
<3%
Power Factor
1.0{0.8 lead~0.8 hysteresis(Settable)}
AC connection
3W+N+PE
Transformer ratio
100/400
200/400
270/400
270/400
270/400
315/400
AV (Off Grid)
Max output power[kVA]
33kVA
55kVA
110kVA
165kVA
275kVA
550kVA
Rated Power [kW]
30kW
50kW
100kW
150kW
250kW
500kW
Rated Voltage [V]
400V
Rated Current [A]
43A
72A
144A
216A
361A
722A
THDU
＜2% Linear
Rated Frequency [Hz]
50/60Hz
Overload Capacity
110% long-term
Photovoltaic input
Max.Photovoltaic Input
Voltage [V]
1000V
Max.Photovoltaic Power
[kW]
60/120kW
120/180/240kW
300/360kW
600/660/720kW
MPPT voltage range [V]
250V-850V
MPPT voltage range@full
load [V]
450V-850V
Battery
Battery Voltage Range [V]
250V-850V
320V-850V
420V-850V
420V-850V
420V-850V
500V-850V
Max. Charging Power[kW]
60/120kW
120/180/240kW
300/360kW
600/660/720kW
System Parameter
Dimension [W/D/H](mm)
800×800×1900mm
1200×800×2050mm
（600×720×2050）
×1+1200×800×205
0mm
（600×720×2050）
×2+1600×1050×205
0mm
Net weight [kg]
621kg
712kg
936kg
1057kg
426kg+1582kg
426kg×2+2665kg
Ambient Temperature [℃]
－30℃～+55℃
Relative Humidity
0 ~95% non-condensing
Protection Grade
IP20
Noise level [dB]
<70dB
Altitude [m]
5000(>3000 Derating )
Shutdown self power
consumption [W]
<30W
Cooling Mode
Air Cooling
Display and Communication
Display
LCD touch-screen
BMS Communication
interface
RS485/CAN
Local Communication
RS485，TCP/IP
Authentication
TUV、CE
※：Postscript 1：250kW is composed of a photovoltaic controller and an energy storage inverter. 500kW is composed of two photovoltaic controllers and an energy
storage converter. 2: Special models need to be customized and developed

12
4Inverter Mode and Function
4.1 Working Mode Introduction
The energy storage inverter working mode can be set on the touch screen, and the user can
select the working mode according to different needs (for reference) by clicking the
"Operation Mode" in the "Menu" →"System" →"DC/AC Parameter Setting" item:

13
Notice! If the anti-backflow function is set to be enabled, the system will not
supply power to the grid once it enters the three working modes of self-generated
and self-used, peak load shifting, and battery priority.
4.2 Introduction of Inverter Status
There are six states of energy storage inverter, as shown in Table 4-1 below.
Table 4-1 Status and Description
Status
Description
operation
Normal operation of energy storage inverter。
Standby
When the inverter receives standby instructions from the LCD screen
or the host computer, it turns to standby state in shutdown or
operation mode. When the AC and DC contactors of the inverter are
closed in standby state, the system is in hot standby state. When the
LCD screen or the host computer carries out relevant control, the
inverter can respond quickly.

14
Status
Description
fault
When the energy storage system fails, the inverter will stop working,
automatically disconnect the contactor on the AC and DC side, and
the main circuit will be disconnected from the battery, power grid or
load. In the fault state, the system always monitors whether the
fault is eliminated or not. If the fault is not eliminated, the system
maintains the fault state. If the fault is eliminated, it will enter
standby state after the default of 30 seconds.
Shutdown
If the energy storage inverter is in the normal "running" state, the
user can stop the energy storage inverter by issuing the stop
instruction from the host computer, or Turn off the key through the
LCD screen switch page.
Emergency
shutdown
In case of failure or emergency, press the emergency shutdown
button (EPO) to stop the inverter.
Shutdown
Energy Storage Inverter All Circuit Breakers Disconnect and Switch
Reset
When the energy storage inverter fails or the power module fails, it is forbidden to start
again through the touch screen.
It should be checked by power off to confirm that there is no problem, and then power on
again, otherwise it may damage the inverter.
WARNING

15
Pre-installation preparation
Mechanical installation
Electrical installation
Installation Completion Check
Trial run test
Start
End
5Mechanical Installation Guidance
5.1 Precautions Before Installation
Installation of this series of energy storage inverters requires simultaneous operation
of at least two qualified personnel, and all electrical installations must conform to local
electrical installation standards.
When installing, do not touch other parts of the cabinet except the terminal.
Safety signs must be set up at all upstream isolators to prevent closing during
construction.
5.2 Installation Process
The installation process of energy storage inverters is as follows:
Fig. 5-1 Installation flow chart

16
5.3 Installation Preparation
5.3.1 Packaging Inspection
Before installation, it is necessary to check whether the equipment is damaged. If any
transportation damage is found, please contact the transportation company. and provide
photos of the damage.
5.3.2Delivery Checklist
According to the packing list in the packing box, check whether all the parts delivered are
complete or not: transportation
Table 5-1 Delivery list
project
Number
Inverter
1PCS
Key
2PCS
Certificate
1 PCS
Warranty card
1 PCS
Product User Manual
1 PCS
Exit Inspection Report
1 PCS
5.3.3 Installation Tools And Parts
The tools and parts needed to install the inverter are as follows:
Table 5-2 Tool List
Tool
Remarks
Forklift or crane
1 vehicle
Wire stripper
1 pcs
Crimping pliers
1 pcs
Bolt driver
1 pcs
Sleeve
1 pcs
multimeter
1 pcs
Screws, nuts, gaskets
Some
5.3.4 Installation Environment Requirements
Before installing the inverter, please confirm the following requirements:
Table 5-3 Environmental requirements
Project
Requirement
Temperature
-30℃~55℃
Humidity
＜95%（No condensation）
Altitude
<3000m
A place away from electromagnetic radiation sources; a place without oil mist,
corrosive gas, flammable gas, etc.; a place where metal powder, dust, oil, water and
other foreign objects will not enter the inverter (please do not install the inverter on
wood and other flammable substances); places without radioactive substances and
flammable substances; places without harmful gases and liquids;

17
5.4 Machine Transportation
5.4.1 Transport Instructions
In order to keep the inverter in a better protective state, packaged transportation should be
adopted as far as possible.
When using forklift or crane for transportation, attention should be paid to the weight of
inverter to ensure that transport equipment has sufficient carrying capacity, and reasonable
arrangement of support or lifting points.
Inverter packaging is marked with detailed product parameters and transport requirements.
Please transport according to the indication of various labels on the packaging. The graphic
description of inverter packaging labels is shown in tables 5-4 and 5-5.
Table 5-4 Description of Packing Parameters
Name
Explain
MODEL
Inverter Model
SIZE
Outer packing dimensions
NW
Net weight of inverter
GW
Gross Weight, Inverter
Containing Outer Packaging
Box
Table 5-5 Graphical description of packing marks
Sign
Describe
Front-up, no transverse, tilt or inversion of inverter
Care should be taken to avoid damage to inverter
caused by excessive collision and friction in
transportation environment.
Pay attention to damp-proof, avoid the inverter being
rained or damped