BYD MINI ES Battery Base User manual

MINI ES
User Manual
P30B3-AU-R2

I
Content
1. Introduction......................................................................................................................1
1.1 Brief description......................................................................................................1
1.2 Product Composition..............................................................................................2
1.3Functions.................................................................................................................3
1.4 System modes........................................................................................................4
1.5 Standards and directives........................................................................................6
1.6 About this manual...................................................................................................6
1.7 Abbreviations..........................................................................................................8
1.8 Attached list............................................................................................................8
1.9 Specification...........................................................................................................8
2. Safety Requirements.......................................................................................................9
2.1 Responsibilities of the installer...............................................................................9
2.2 Battery Maintenance ............................................................................................10
2.3 Requirements for the installation location............................................................12
2.4 Safety signs on the device ...................................................................................12
2.5 Safety equipment..................................................................................................13
2.6 Basic safety information.......................................................................................13
3. Technical Description.....................................................................................................18
3.1 Scope of supply....................................................................................................18
3.2 Nameplate introduction ........................................................................................18
3.3 System overview ..................................................................................................19
3.4 Overview of functions...........................................................................................20
3.5 Product Introduction.............................................................................................24
4. Monitoring instruction.....................................................................................................30
4.1 How to install APP................................................................................................30
4.2 Register an account onAPP ................................................................................31
4.3 Register account on the website..........................................................................32
5. Daily Maintenance Methods..........................................................................................33
5.1 Common faults .....................................................................................................33
5.2 Display status query table of panel button indicating lamps................................34
5.3 Routine maintenance ...........................................................................................34
6. About BYD .....................................................................................................................35

1
1. Introduction
Dear customer:
Thank you very much for purchasing the MINI energystorage system supplied byBYD
Auto Industry Company Limited. We sincerely believe that our products meet your needs.
We value your feedback on the product performance and function and we strive to
continually improve our product.
1.1 Brief description
MINI ES is an energy storage system which can store and distribute excess energy
generated by PV (photovoltaics) systems. It can be used to minimize solar export for
customers as much as possible.
Note: It is recommended to use MINI ES to cooperate with an existing PV
system
An overall structure diagram in house is shown as below:
CT2
①
②
③④
⑤⑥
⑦
⑧
CT1
Communication line
Electrical supply
DRED
⑨
figure1. Overall structure diagram
Number
Name
Description

CT1 (Current Transducer)
Collects the current of house grid

CT2 (Current Transducer)
Collects the current generated from the PV
system

DRED receiver
Transfer the demand signal from the Grid to
the MINI ES

Photovoltaic inverter
Inverts the direct current generated from PV
to alternative current to supply the load

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Number
Name
Description
demand

General load distribution board
Used to connect general load, grid, PV
inverter and the “GRID”terminal of the MINI
ES

Essential load distribution board
Connects to “LOAD” terminal in MINI ES

General load
High power electric appliances

Essential load
Essential single phase electric appliance
When grid power is off, MINI ES will supply
essential load circuit

Router
Uploads the data of MINI ES
1.2 Product Composition
MINIES is mainly composed of pcs and battery.
PCS
PCS Parameters
DC Nominal Voltage
51.2VDC
AC Maximum Power
4140W
AC Nominal Power
3000W
AC grid Voltage
230V
Maximum Discharge Current
13A

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AC grid frequency
50HZ
Nominal Voltage
230V
Total Harmonic Distortion
<4%
Topology
Transformer
IP Grade
IP20
Size (W×H×D）
26KG
Weight(Net Weight)
204.5 x 231 x 578.8mm
Operation Temperature
-25~+45℃
Storage Temperature
-40~+70℃
Battery
Battery Parameters
Nominal Voltage
25.6V
Capacity
75Ah
Energy
1.92Wh
Mechanical characteristics
Thickness
139±2mm
Width
189±2mm
Length
458.5±2mm
Weight
＜20Kg
Electrical characteristics
Charge Method
CC/CV/CP
Charge Current
37.5A (Standard)
75A (Max. Continue Current @ 25℃)
Charge Cut-off Voltage
3.60V/Cell
Discharge Method
CC/CV/CP
Discharge Cut-off Voltage
2.80V/Cell
Discharge Current
37.5A (Standard)
75A (Max. Continue Current @ 25°C)
1.3Functions
Functions of the MINI ES system are shown as below:

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Macth Load
Backup function
Remote control
1.Remote function prohibition
2.Did not receive 485 control command
within 1 minute；
Meet any of the above
1. Remote function enable
2.Received 485 control command；
The above two conditions are
satified。
Local and Remote button
are pressed simultaneously
for 5 s；Exit protective
charging；
Protection
charging
Protection
charging
condition
trigger
Protection charging
condition trigger
Protection
charging stop
Protection
charging stop
Power and Remote
button are pressed
simultaneously for 5
s；
Local and Remote
button are pressed
simultaneously for 5
s
When grid power is unavailable, supply power to essential loads, such as computer,
TV general lighting.
It has local and remote control function. Local control is default mode and remote
control is accessible for certified installer.
System supplies APP software, which enables customer to view the system data
online or from a smart phone.
1.4 System modes
MINI ES works in self-consumption mode which maximise energy saving for you.
Self-consumption mode
Power P
Time T
PV power generation curve
Electric curve of household load
PV power direction /Load Load and
MINIES Load /
MINI ES/grid PV MINI ES
and PV
Power source for
single phase load
Discharging/
standby Charging Discharging
MINI ES working
condition
Night Daytime Night
Morning Evening
Discharging/
Standby
MINI ES,
Grid,PV
Discharging/
Standby
MINI ES,
Grid,PV
Self-consumption
mode
figure2. Power curve of a sample day
Demand Response Mode (DRM)
MINI ES that cooperates with DRED controller could receive the demand signal from

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the Grid to connect or disconnect with the Grid and limit power of charging or
discharging.
figure3. Dimensional drawing
The MINIES supports the DRM0 mode and is used in conjunction with the DRM0
combination switch.DRM0 can be configured through a third-party debugging tool. The
below debugging tool Modbus Slave is used as an example
MINIES disables DRM0 mode by default. If you need to switch it on, you can use the
third-party debugging tool to set the register of DRM0 address. The default address is
128.After turning on DRM0 mode, the combination switch (as shown below) is
connected to the rear panel of ESS through standard RJ45 network cable, The "DRM"
interface is ready to use.
The MINIES supports the DRM function as specified in AS4777.2.2015.The terminal
block inside the MINIES is used for connecting to a demand response enabling device
(DRED).
The DRED asserts DRMs, The MINIES detects and initiates a response to all
supported demand response commands within 2s.The following table lists the DRMs
supported by the MINIES.(DRM3 and DRM7 will supply or skin reactive power)
DRM0
The MINIES is in the state of “Key-stop”
DRM1
The import power from the grid is 0.
DRM2
The import power from the grid is no more than 50% of the rated power.
DRM3
The import power from the grid is no more than 75% of the rated power.
DRM4
The import power from the grid is no more than 100% of the rated power.
but subject to the constrains from other active DRMs
DRM5
The export power from the grid is 0.
DRM6
The export power from the grid is no more than 50% of the rated power.
DRM7
The export power from the grid is no more than 75% of the rated power.
DRM8
The export power from the grid is no more than 100% of the rated power, but subject
to the constrains from other active DRMs.

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1.5 Standards and directives
MINI ES strictly complies with relevant standards and requirements which are shown
below
Certification item
Standard
Safety
IEC/EN 62109-1/-2
EN 62477-1
AS 62040.1.1
EMC
IEC/EN 61000-6-3:2007+A1:2011
EN 61000-6-2:2005
Grid connected
VDE AR N4105
VDE V 0126-1-1
AS 4777.2-2015
Battery
IEC 60730
1.6 About this manual
Declaration
This manual is applicable to the MINI ES and instructs the operation and functions of
product.
The manual is applicable to transportation, assembling, installation and
commissioning.
This manual is intended to be used by the accredited installer.
This manual contains important information. Please read this manual carefully before
operating and servicing the MINI ES.
Please strictly follow the manual instructions when operating the system, otherwise it
may cause the product to fail or cause personnel casualty or property loss.
This manual shall be stored and safely be accessible on site to the installer and
service technician at any time.

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Alarm signs
Please keep several types of safety alarm signs in mind. Familiarize yourself with the
messages and the importance of the various signals as explained.
Warning instructions identify safety information, which consists of the following:
Warning sign
Instructions to denote the level of risk
Details of the nature and source of the risk
Details of the potential risk if the warning instructions are disregarded
Risk management to prevent the danger or personnel casualty or material damage
The warning instructions are defined according to the following level of hazards
DANGER!
Denotes an extraordinarily hazardous situation
This warning symbol indicates an immediate danger, which can lead to severe
injury or death.
WARNING!
Denotes a very dangerous situation
This warning symbol indicates a potentially dangerous situation, which could lead
to severe injury or death.
CAUTION!
Denotes a dangerous situation
This warning symbol indicates a potentially dangerous situation, which could lead
to minor injury.
NOTICE!
Denotes a risk of material damage
This warning symbol indicates a situation that could lead to material damage.

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1.7 Abbreviations
Abbreviation
Description
APP
Application software
CT
Current transducer
1.8 Attached list
Tool list
No.
Tool name
Tool type
Functions
1
Stanley knife
2
Phillips head screwdriver
3
Flat-bladed screwdriver
4
Small flat-bladed screwdriver
1mm
CT terminal
5
Sleeve and loop bar
M14
Fix anchor bolts
6
Electric drill and drill bit
NO.10 drill
Punch anchor bolts
7
Hammer
8
Long-nose pliers
5 inches
9
Wire strippers
Standard
10
Wire crimpers
11
Crimping modular plier
RJ45
12
Multi-meter
Standard
13
Adjustable wrench
14
Scissors
15
Tape
16
Other auxiliary tools that might
be used (for example:
Insulating gloves, insulating
shoes, insulating tape, etc.)
All installation
process
1.9 Specification
Parameters
MINIES-P30B3-AU-R2
On-grid Parameters
Nominal Voltage
240V AC/1Phase
Maximum Discharge Current
13A
Nominal Frequency
50HZ
Maximum Power
3KVA
Total Harmonic Distortion
<5%

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Parameters
MINIES-P30B3-AU-R2
Island detection
Auto Test, AFD
Max. grid port short-circuit fault current
980us,390A peak, 92.28Ar.m.s
Max.inrush current
0A
Off-grid Parameters
Nominal Voltage
230V AC/1Phase
Nominal Current
8.6A
Maximum Discharge Current
16A (5s protection)
Nominal Power
2KVA
Nominal Frequency
50Hz
Max.output short current
1.17ms,400A peak, 93.53Ar.m.s
Off-grid Protection
2KVA-2.2KVA overload:15min protection;
2.2KVA-3KVA overload: 1min protection;
3KVA-4KVA overload:5s protection;
Battery Parameters
Nominal Voltage(Range)
51.2V (44.8VDC-57.6VDC)
Battery Type
Lithium iron phosphate battery (LiFePO4)
Battery Usable Capacity
>3KWh
Max discharge current power
3.7KW
Max discharge current
65A
Max charge current power
3.7KW
Max charge current
65A
Other Parameters
Topology
Isolated
Wet location
No
Protective class
Class I
Pollution grade
II
Product Size
680mm (W)×256mm (D)×610mm (H)
Weight(Net Weight)
96kg
Operation Humidity
5%~95%
IP Grade
IP32 (recommended indoor use)
Noise
<45dB
Nominal Operation Altitude
<2000m
Cooling Mode
Fan cooling
Communication Interface (function)
RS485*1/Ethernet (RJ45) *1/Instrument
transducer (CT) Sampling port *3
Operation Temperature
0℃~40℃
Storage Temperature
-10℃~40℃
Recommended Operation Environment
Indoor (No condensation, icing, direct sunlight)
2. Safety Requirements
2.1 Responsibilities of the installer
The installer must ensure that:

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The safety protection equipment of the system is fully functioning
Any unclear warning and safety signage on the device should be replaced immediately
Make sure there is no flammable items are placed near the device
The device shouldn’t be covered at any time
The device is required to be placed on a surface thatcan support the full weight of the
unit
Transportation, assembling, installation and commissioning of the device shall be
carried out by authorized personnel only
Transportation, assembling, installation and commissioning of the device shall be
carried out only under the specified conditions
The authorized installer shall be capable of evaluating the potential risk
Only authorized and trained electricians can perform installation, commissioning, and
change the settings and connect to the Router
Before installation and operation, any potential hazards shall be identified and the
necessary risk management should be applied onsite.
This manual and safety instructions should be read and understood by the installer
before starting installation
It is not allowed to changethe software, housing andcomponentsof the device without
the manufacturer's approval. Otherwise, the liability and warranty will be invalid.
It is not allowed to open the unit except by authorized and trained electricians. If the
seal is broken due to unauthorized modification of the components, the warranty will
be invalid.
2.2 Battery Maintenance
When the device is not used for a long time, discharge the battery to between 45%
and 60% of the battery capacity, and disconnect the battery output to avoid the battery
power being emptied;
When the device is not used for a long time, it is recommended to charge the battery
once every six months to ensure that the battery can work normally.
Ensure reliable grounding.
Battery maintenance must be carried out by professionals or under their direction;
When replacing the battery, use the same type and number of batteries or battery
packs;
Warning: Do not throw the battery into a fire. The battery may explode;
Warning: Do not open or damage the battery. The electrolyte flowing out of the battery
is harmful to the skin and eyes. The electrolyte may also be toxic;
Warning: The battery may cause a shock hazard and a large short-circuit current.
When handling the battery, pay attention to the following aspects:
a) Remove watches, rings and other metal products;
b) Use a tool with an insulated handle;
c) Wear rubber gloves and shoes;

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d) Do not place tools or metal parts on the battery;
e) Disconnect the charging power supply before disassembling the battery terminal
block;
f) Pay attention to whether the battery is inadvertently grounded. If you find that the
battery has been accidentally grounded, remove the power supply from the ground.
Touching any part of the grounded battery can cause an electric shock.
Disconnecting ground during installation and maintenance reduces the probability
of electric shock (applicable to equipment without a grounded power supply and
remote battery power).
g) Do not touch the battery pack with wet hands.
h) Do not crush, drop or puncture the battery.
i) Always dispose of the batteries according to local safety regulations.
j) Store and recharge battery in a manner in accordance with this user manual.
k) The charging circuit of inverter shall be DVCA, and the output circuit needs to be
isolated from high voltage bus.
l) Do not reverse battery polarity
m)When storing or transporting the battery, do not stack the battery without protective
packaging
n) Packaged batteries should not be stacked more than specified number stipulated
on the package.
All operators of the energy storage system shall follow the user manual, installation
and service manuals and quality guarantee.Any damage to equipment caused by ignoring
and misreading the user manual, installation and service manuals and quality guarantee
will invalidate the product warranty.
2.2 Qualified electrician
Qualification
A qualified electrician is a person who possesses the required knowledge, technical
training and experience, to conduct the following:
Setting up, activating, deactivating, disconnecting, grounding, short-circuiting and
repairing electrical circuits and devices.
Standard maintenance and use of protective devices defined in the safety standards.
Administering first-aid to injured parties.
Compliance with local regulations, applicable standards and directives.
Responsibilities
The electrician shall ensure that:
The general information, step-by-step instructions and the safety instructions
regarding assembling and installation are read and followed all the time.
Neither the physical size nor the rated current value of fuses can be changed
Before performing any electrical work , suitable measuring equipment shall be used
to ensure the device is in accordance with applicable directives
Do not open the device during operation

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2.3 Requirements for the installation location
Always select a suitable location before installation. You shall ensure that the
installation location meets the following conditions:
Sufficient ventilation and dry environment (max humidity is 95%)
The range of room temperature is 0℃~ + 40℃
Protected against penetrating water
Always install away from highly flammable (e.g. paper) or explosive materials (e.g.
fuel, paint)
Mounting surface shall be capable for supporting the total weight of the device: 96kg
(3kWh system)
Minimum clearance from the wall (15 cm)
Keep the distribution board at a reasonable distance from the MINI ES system
installation. Only 10m connection cable is provided for each CT. Cable extension
requires extra cost, maximum cable extension is 10 meters
Access authority
Children shall be accompanied by an adult if they are in the installation room
Children shall not operate the storage system
2.4 Safety signs on the device
Item
Description
Be aware of dangerous voltage/ electric shock
ISO 7000-1641
The product should not be disposed of together with household
waste at the end of its life.Please send it to a proper institution for
recycle and reuse
Point of connection for grounding protection
Hot surface

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Item
Description
IEC 60417-5019(2011-01)
IEC 60147-5018(2011-01)
Pass CE authentication
2.5 Safety equipment
The electrician must install the following safety equipment:
Leakage current circuit breaker (Detailed specifications please refer to installation
content)
Specifically refer to the installation guide.
There shall be an earth leakage protection device for each final sub-circuit of customer.
CAUTION!
Leakage protection
According to different countries and areas, choose appropriate current leakage
protection breaker.
2.6 Basic safety information
This chapter contains the basic safety instructions. Fail to follow the safety instructions
in this manual can lead to accidents which can cause serious injury and/or death, as well
as serious components damage.
Risk of fatal injury: General
DANGER!
Risk of fatal injury due to lack of assistance
In the event of an accident a second person can switch off the power supply and
provide assistance.
· Only a secondAry installer is presented could start work.

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DANGER!
Due to disregard of safety instructions
If the safety instructions and/or installation manual are not followed , the product
may be damaged permanently and it may cause electrical accidents with serious
consequences.
· Follow the safety instructions
Risk of fatal injury: Inverter
DANGER!
Risk of fatal injury from arcing
Arcing may occur in the event of faults or if fuses and plugs are not properly
connected.
· Always use components in accordance with the instructions of the respective
manual
DANGER!
Risk of fatal injury due to residual voltages
The inverter capacitors may still discharge even after the device is switched off.
· Ensure external and internal switches are disconnected.
· After switching off the device, always wait for 10 minutes before directly contact
with the unit.
· Use a certified multimeter to check if the device is still energized in accordance
with applicable guidelines
Risk of fatal injury: Battery

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DANGER!
Risk of injury due to electric shock
Batteries can generate significant amounts of short-circuit current due to incorrect
operation ,which can cause electric shock and lead to serious injury and/or death.
· While working with batteries, always remove watches, rings and other metal
equipments.
· Only use tools that have insulated handles
· Do not place or store tools or other metal objects on the batteries
· Always disconnect the charging and discharging source first before working on
the battery connections
· Reconnect the unit only after comprehensive check of all connections and terminals,
make sure the wiring is correct.
DANGER!
Risk of explosion due to using incompatible battery types
If other battery types not approved for the device are used, the existing and new
adding batteries may explode.
· Only use the batteries that have been approved by manufacturer.
· Check with the manufacturer before installation.
Risk of injury General
WARNING!
Risk of injury due to unauthorized installation
Installation and commissioning of this storage system requires BYD authorized
training and relevant accreditation.
· Installation 、cabling and commissioning must only be carried out by
authorized、trained electricians.
· The device operating temperature may reach up to 100℃, don’t touch the hot
surface.

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WARNING!
Risk of injury due to heavy weight
The heavy weight of components may cause injury during installation、
disassembling、transportation.
· Transportation and installation requires a minimum of two people.
· Transport the device with appropriate lifting equipment.
WARNING!
Risk of injury due to incorrect installation procedure
If the sequence specified in the instructions is not followed during the installation of
the components, this can cause injury or material damage.
· Read the installation manual carefully and follow the installation procedure.
WARNING!
Risk of injury due to sharp edges
The components have sharp edges, which can cause injury if they are not handled
carefully.
· Wear protective equipment.
· Install the system with a minimum of two people.
WARNING!
Risk of incorrect use of the batteries
Eye and skin injuries can be caused by opening or damaging the batteries.
Never open or damage the batteries
· Do not short-circuit the batteries
· Do not reverse the polarity of the batteries
· Do not overcharge the batteries
2.7 Other safety instructions

17
WARNING!
· Do not climbing on equipment and place accessories on or inside the device.
· Do not disassemble, reconstruct, repair equipment without the manufacture
permission .
· Do not allow any non-professional to do maintenance for internal electrical
equipment . When maintenance is needed, please contact the authorized
provider.
· Do not block the ventilation of the device .
· Do not put any objects inside the system.
· Do not touch, pull or cut off the internal cable come from the device.
· Do not place heat sources near the device (such as electric furnace and other
heating equipment)
· Do not wipe the device with a damp cloth or chemicals (such as diluent)
· Do not pull the power cable of the device.
· Do not operate with wet hand, wet cloth.
· Do not set the device closed to the high frequency machine, the wireless
machine , the radio, television or the electrical equipment with disturb signal.
· Do not apply heavy impact or tilt the device.
· Do not spray any liquid on equipment.
· Do not install the device in where full of electrostatic or noise.
· The essential loads will experience a short period blackout (less than 5
seconds) when grid drop off before MINIES supply power.
· Do not make medical equipment as essential loads because MINIES is not UPS
device.
· Do not attempt to repair or remove the device if the device or parts are
damaged , please consult local supplier.

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NOTICE!
· Do not directly install the device at severe weather condition.
· Do not use the device for medical equipment.
· If equipment is deformed, broken or appears abnormal sounds or smell, please
contact with the authorized service provider immediately.
· If equipment is faulty or do not operate normally, please contact with the
authorized service provider right away.
· Keep minimum space for inspection and service.
· Please contact with BYD authorized provider if regular maintenance is needed.
· Please keep the system fully charged if prepare to leave the device unused for a
long time,.
· Please contact with BYD authorized service provider when the device needs to
be relocated.
· This equipment is allowed to be installed indoors only, please do not install
outdoors.
· This product is allowed to be used in Australian area. If there are any other
special requirements, please contact with the manufacturer for prior approval.
3. Technical Description
3.1 Scope of supply
After unpacking the storage system, you must check the scope of delivery. If
components are missing or damaged, contact with the manufacturer right away. The
following components are included as standard in the scope of delivery:
Number
Item
Quantity
1
MINI ES
1
2
CT
2
3
User Manual
1
4
Factory Inspection Report
1
5
Certificate of Qualification
1
6
DRED
1
3.2 Nameplate introduction
The Mini ES is fitted with a nameplate on its front left housing. This nameplate is
engraved with important parameters related to the system. Please protect it carefully in the
process of transportation, installation, maintenance and overhaul. Do not damage or
remove the nameplate.