SUNKET-ESS LFP5000 User manual

LFP 5000
LiFePO4 BATTERY
51.2V 100Ah
USER MANUAL

2
content
Safety Precautions................................................................................................................3
Preface..................................................................................................................................4
1Introduction .....................................................................................................................4
1.1 Brief Introduction.....................................................................................................4
1.2 Product Properties ..................................................................................................4
1.3 Product identity definition........................................................................................5
2 Product Specification .......................................................................................................6
2.1 Size and Weight......................................................................................................6
2.2 Performance Parameter .........................................................................................6
2.3 Interface Definition...................................................................................................6
2.4 Battery Management System(BMS).....................................................................
9
2.4.1 Voltage Protection .....................................................................................
9
2.4.2 Current Protection .....................................................................................
9
2.4.3 Temperature Protection ...........................................................................
10
2.4.4 Other Protection ........................................................................................
10
3 Installation and Configuration ........................................................................................
10
3.1 Preparation for installation....................................................................................
10
3.1.1 Environmental requirements ......................................................................
11
3. 1.2 Tools and data...........................................................................................
11
3.1.3 Technical preparation..................................................................................
11
3. 1.4 Unpacking inspection................................................................................
12
3. 1.5 Engineering coordination ..........................................................................
13
3.2 Equipment installation...........................................................................................
13
3.2.1 Installation preparation...............................................................................
14
3.2.2 M echanical installation ............................................................................
14
3.2.3 Electrical installation .................................................................................
14
3.2.4 Battery parameter settings on the inverter.................................................
16
4 Use, maintenance and troubleshooting.........................................................................
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4.1 Battery system usage and operation instructions ..............................................
16
4.2 Alarm description and processing ........................................................................
17
4.3 Analysis and treatment of common faults ............................................................
18
LFP5000
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3
Safety Precautions
Warning
Please do not put the baery into water or re, in case of explosion or any other situation
that might endanger your life.
Please connect wires properly while installation, do not reverse connect.
To avoid short circuit, please do not connect positive and negative poles with conductor on
the same device.
Please avoid any form of damage to baery, especially stab, hit, trample or strike.
Please shut othe power completely when removing the device or reconnecting wires
during the daily use or it could cause the danger of electric shock.
Please use dry powder extinguisher to put out the ame when encountering a re hazard,
liquid extinguisher could result in the risk of explosion.
For your safety, please do not arbitrarily dismantle any component in any circumstances.
The maintenance must be implemented by authorized technical personnel or our
company’s technical support. Device breakdown due to unauthorized operation will not be
covered under warranty.
Caution
Our products have been strictly inspected before shipment. Please contact us if you nd any
abnormal phenomena such as device outer case bulging.
The product shall be grounded properly before use in order to ensure your safety.
To assure the proper use please make sure parameters among the relevant device are
compatible and matched.
Please do not mixed- use baeries from dierent manufacturers, dierent types and models,
as well as old and new together.
Ambient and storage method could impact the product life span, please comply with the
operaon envi ronment instrucon to ensure device works in proper condion.
For long-term storage, the baery should be recharged once every 6 months, and the
amount of electric charge shall exceed 80% of the rated capacity.
Please charge the baery in 18 hours after it fully discharged or over-discharging protection
mode is activated.
Formula of theoretical standby time: T=C/ I (T is standby time, C is baery capacity, I is total
current of all loads).
LFP5000

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Preface
Manual declaraon
1.2 Product Properties
LFP5000
SUNKET-ESS LFP5000 lithium iron phosphate baery energy storage system can provide energy storage
for photovoltaic power generation users through parallel combination. Our product can store
extra electricity into baery from photovoltaic power generation system in daytime and supply stable power
to user’s equipment as power backup at nighime or any time when needed. It
can improve
the eiciency of photovoltaic power generation and increase the electric power eiciency
by
peak load shiing.
This user manual details the basic structure, parameters, basic procedures and mthods of installation and
operation and maintenance of the equipment.
1
Introduction
1.1 Brief Introduction
LFP5000 lithium iron phosphate ba ery system is a standard baery system unit,
customers can choose a certain number ofLFP5000 according to their needs, by
connecting parallel to form a larger capacity ba ery pack, to meet the user's long-term
power supply needs. The product is especially suitable for energy storage
applications with high operating temperatures, limited installation
space,
long powerbackup time and long service life.
LFP5000 energy storage product’s positive electrode materials are lithium iron phosphate,
baery cells are managed eectively by BMS with beer performance, the system’s
features as below:
Comply with European RoHS, Certified SGS, employ non-toxic, non-pollution
environment- friendly baery.
Anode materials are lithium iron phosphate (Li FePO4), safer with longer life span.
Carries ba ery
management system with be er performance, possesses
protection function like over-discharge, over-charge, over-current, abnormal
temperature.
Self-management on charging and discharging, Single core balancing function.
Intelligent design configures integrated inspection module.
Flexible configurations allow paralle l of multi ba ery for longer standby time.
Self-ventilation with lower system
noise.
Less baery self-discharge, then recharging period can be up to 10 months during
the storage.
No mem ory eect so that ba ery can be charged and discharged shallowly.
With wide range of temperature for working envi ronment, -20℃ ~ +55℃, circulation
span and discharging performance are well under high temperature.
Less volume, lighter weight.

5
1.3 Product identity definition
Baery voltage is higher than safe voltage, direct
contact with electric shock hazard.
inflammable.
Read the user manual before using.
The scrapped baery cannot be put into the garbage can
and must be professionally recycled.
After the baery life is terminated, the baery can
continueto be used after it recycled by the professional
recycling organization and do not discard it at will.
Do not place near open flame or incinerate.
If catch re, do not put out with water.
If catch fire, do not put out with dry powder fire
extinguisher.
Do not cut or spear with sharp objects.
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6
Product Nominal
Voltage
Nominal
Capacity Dimension Weight
DC51.2V 100Ah 453×433×177mm
Item Parameter value
Nominal Voltage(V)
Work Voltage Range(V)
Nominal Capacity(Ah) 100
Nominal Energy(kWh)
50
58.4
2.3 Interface Definition
This section elaborates the interface functions of the front interface of the devic
Figure2-1 The sketch of interfac
LFP5000
2 Product Specification
2.1 Size and Weight
Table 2- 1 LFP5000 Device size
LFP5000 65kg
Table 2-2 LFP5000 performance parameter
Max. Charge Voltage (Vdc)
Max. Charge Current (A)
Max. Discharge Current (A) 50
5.12
43.2~56
51.2
1
23
45678910 11

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Table 2-3 Interface Denition
Item Name Definition
1 SOC
The number of green lights shows the remaining power. Table 2-3
f
or details.
2 ALM
R
ed light flashing when an alarm occurs, red light always on
dur
ing protection status. After the condition of trigger protection i
s
relieved, it can be automatically
3 RUN
G
reen light flashing during standby and charging mode. Green
light always on when disc
4
ADD
DIP switc
5
CAN
Communication cascade port, support CAN communication
6
RS485
Communication cascade port, support 485 communication
7
RS485
Communication cascade port, support 485 communication
8
Res
Reset switch
9
power
power switch
10
Positive socket
Battery output positive or parallel positive lin
11
Negative socket Battery output negative or parallel negative lin
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DIP switch descripon:
When the baeries are connected in parallel, the host communicates with the slaves through
the 485 interface. The host summarizes the information of the entire baery system and
communicates with the inverter through CAN.
Figure 2-2 CAN/485 interface definition
Table 2-5
CAN Pin Definition
Foot position
Color
Denion
PIN1
Orange/white
NC
PIN2 Orange NC
PIN3
Green/white
XGND
PIN4
Blue
CAN-H
PIN5
Blue/white
CAN-L
PIN6 Green XGND
PIN7
Brown/white
NC
PIN8
Brown
NC
485 Pin Definition
Foot position
Color
Denion
PIN1
Orange/white
RS485-B
PIN2 Orange RS485-A
PIN3
Green/white
XGND
PIN4
Blue
NC
PIN5
Blue/white
NC
PIN6 Green XGND
PIN7
Brown/white
RS485-A
PIN8 Brown RS485-B
Tips: Please pay aention of the communication com definition of inverter, in order to avoid
voltage in the port to aect communication.
LFP5000

Table 2-6 LED status indicators
Baery
Status SOC LED4 LED3 LED2 LED1 ALM RUN
Shutdown /oooooo
Standby / oooooFlashing
Charging
0%＜SOC≤25% oooFlashing o
25%＜SOC＜50% ooFlashing o
50%＜SO C≤75% oFlashing o
SOC>75% Flashing o
Discharging
0%＜SOC≤25% oooFlashing oFlashing
25%＜SOC＜50% ooFlashing oFlashing
50%＜SOC≤75% oFlashing oFlashing
SOC>75% Flashing oFlashing
9
LFP5000
 means green light always on
2.4 Battery Management System(BMS)
2.4.1 Voltage Protection
Low Voltage Protecon in Discharging ：
When any ba ery cell voltage or total voltage is lower than the rated protection
value during discharging, the over-discharging protection is activated. Then baery
system stops supplying power to the outside. When the voltage of each cell back to
rated return range, the protection is over.
Note: Aer the BMS is turned o aer discharging and under -voltage
protecon,
the buon is acvated or the charging is acvated, the BMS will
keep output voltage for 1 minute to detect the baery voltage of the inverter,
so it is not allowed to dischar ge within 1 minute.
Over Voltage Protection in Charging：
Baery will stops charging when total voltage or any baery cell voltage reaches
the rated protection value during charging stage. When total voltage or all cell back to
rated range, the protection is over.
2.4.2 Current Protection
Over Current Protecon in Charging：
When the charging current is > 50A, the current limit protecon mode is acvated. If
the current does not drop within 10S, the charging current will be limited. It can be
restored aer 60S or the discharge can be restored immediately.
Over Current Protecon in Discharging：
When the discharging current is >50A, the current limit protecon mode is acvated.
If the current does not drop within 10S, the discharging current will be limited. It can
be restored aer 60S or the charge can be restored immediately.

2.4.3 Temperature Protection
Low/Over temperature protecon in charging：
When baery’s temperature is beyond range of 0℃~+50℃during charging, temperature
protection is activated, device stops charging.
The protection is over when temperature back to rated working range.
Low/Over temperature protecon in discharging：
When baery’s temperature is beyond range of -20℃~+55℃during discharging, temperature
protection is activated, device stops supplying power to the outside.
The protection is over when temperature back to rated working range.
2.4.4 Other Protection
Short Circuit Protection：
When the baery is activated from the shutdown state, if a short circuit occurs, the system starts
short-circuit protection.
Self-Shutdown：
When device connects no external loads and power supply and no external communication for
over 48 hours, device will dormant standby automatically.
Caution
Baery’s maximum discharging current should be more than load’s maximum working current.
3 Installation and Configuration
3.1 Preparation for installation
Safety Requirement
This system can only be installed by personnel who have been trained in the power supply
system and have suicient knowledge of the power system.
The safety regulations and local safety regulations listed below should always be followed during
the installation.
All circuits connected to this power system with an external voltage of less than 51.2V
must meet the SELV requirements defined in the IEC60950 standard.
If operating within the power system cabinet, make sure the power system is not
charged. Baery devices should also be switched o.
Distribution cable wiring should be reasonable and has the protective measures to avoid
touching these cables while operating power equipment.
when installing the baery system, must wear the protective items below:
The isolation gloves
Safety goggles
Figure3- 1
Safety shoes
10
LFP5000