LG Chem EM048063P3S User manual

48 V Standalone Battery Module
Installation Manual

About this manual
This manual describes how to install and use EM048063P3S and EM048126P3S series
battery modules by LG Chem. Read this manual before you attempt to install the
product, and follow the instructions throughout the installation process. If you are
uncertain about any of the requirements, recommendations, or safety procedures
described in this manual, contact LG Chem immediately for advice and clarication.
The information included in this manual is accurate at the time of publication. How-
ever, the product specications are subject to change without prior notice. In addi-
tion, the illustrations in this manual are meant to help explain system conguration
concepts and installation instructions. The illustrated items may dier from the ac-
tual items at the installation location.
2

Contents
Contents 3
1 Safety 5
1.1 Symbols on product labels . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Safetyinstructions............................... 6
1.2.1 General safety precautions . . . . . . . . . . . . . . . . . . . . . 6
1.2.2 Battery handling guide . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Response to emergency situations . . . . . . . . . . . . . . . . . . . . . . 7
1.3.1 Leakingbatteries ........................... 7
1.3.2 Fire................................... 8
1.3.3 Wetbatteries ............................. 8
1.3.4 Damaged batteries . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4 Qualiedinstallers .............................. 8
1.5 Safetygear................................... 9
1.6 Contactinformation ............................. 9
2 Introduction 10
2.1 Features .................................... 11
2.2 Systemcomponents.............................. 11
2.3 Productoverview............................... 12
2.3.1 Appearance .............................. 12
2.3.2 Modellineup ............................. 12
2.3.3 Status indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.3.4 Drycontact .............................. 14
2.4 Master and slave modules . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.5 Specications ................................. 17
3 Installation Prerequisites 19
3.1 Installationlocation.............................. 19
3.2 Resistor for the communication interface of the higher-level system . . 20
3.2.1 Modbus ................................ 20
3.2.2 CAN .................................. 20
3.3 Tools ...................................... 21
4 Installation 22
4.1 Installation clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.2 Arranging battery modules . . . . . . . . . . . . . . . . . . . . . . . . . 23
3

Contents
4.3 Pre-installation checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3.1 Identifying model number . . . . . . . . . . . . . . . . . . . . . . 24
4.3.2 Measuring battery voltage . . . . . . . . . . . . . . . . . . . . . . 25
4.4 Connecting communication cables . . . . . . . . . . . . . . . . . . . . . 25
4.5 Connecting power cables . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5 Commissioning 30
5.1 Commissioning the ESS . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.2 DeactivatingtheESS ............................. 31
5.3 Troubleshooting commissioning failure . . . . . . . . . . . . . . . . . . 31
A Warranty 33
4

Chapter 1
Safety
NOTE
To use rechargeable batteries, installers are required to comply with standard AS
4086.2 in Australia, VDE-AR-E2510-2 in Germany, and the domestic legislation in
other countries.
1.1 Symbols on product labels
The nameplate and the warning label are attached to the top of the battery module.
The voltage of this battery module is strong enough to cause electric shock.
Keep the battery module away from open ame or ignition sources.
Wear appropriate personal protective equipment when dealing with the bat-
tery module.
Keep the battery module away from children.
5

Safety
Read the manual before installing and operating the battery module.
The battery module may leak corrosive electrolyte.
The battery module may explode.
The battery module is heavy enough to cause severe injury.
The battery module should not be disposed of with household waste at the
end of its working life.
The battery module should be disposed of at a proper facility for environ-
mentally safe recycling.
1.2 Safety instructions
For safety reasons, installers are responsible for familiarizing themselves with the
contents of this manual and all warnings before performing installation.
1.2.1 General safety precautions
WARNING
Failure to observe the precautions described in this section can cause serious in-
jury to persons or damage to property.
• Risks of explosion
–Do not subject the battery module to strong impacts.
–Do not crush or puncture the battery module.
–Do not dispose of the battery module in a re.
• Risks of re
–Do not expose the battery module to temperatures in excess of 60°C.
–Do not place the battery module near a heat source, such as a replace.
–Do not expose the battery module to direct sunlight.
–Do not allow the battery connectors to touch conductive objects such as wires.
• Risks of electric shock
–Do not disassemble the battery module.
–Do not touch the battery module with wet hands.
–Do not expose the battery module to moisture or liquids.
–Keep the battery module away from children and animals.
• Risks of damage to the battery module
6

Safety
–Do not allow the battery module to get in contact with liquids.
–Do not subject the battery module to high pressures.
–Do not place any objects on top of the battery module.
1.2.2 Battery handling guide
• Use the battery module only as directed.
• Do not use the battery module if it is defective, appears cracked, broken or oth-
erwise damaged, or fails to operate.
• Do not attempt to open, disassemble, repair, tamper with, or modify the battery
module. The battery module is not user serviceable.
• To protect the battery module and its components from damage when transport-
ing, handle with care.
• Do not impact, pull, drag or step on the battery module. Do not subject it to any
strong force.
• Do not insert foreign objects into any part of the battery module.
• Do not use cleaning solvents to clean the battery module.
1.3 Response to emergency situations
While the battery module comprises multiple battery cells that are designed to
prevent hazards resulting from failures, LG Chem cannot guarantee their absolute
safety.
1.3.1 Leaking batteries
If the battery module leaks electrolyte, avoid contact with the leaking liquid or gas.
Electrolyte is corrosive and contact may cause skin irritation and chemical burns. If
one is exposed to the leaked substance, do these actions:
Inhalation: Evacuate the contaminated area, and seek medical attention immedi-
ately.
Eye contact: Rinse eyes with owing water for 15 minutes, and seek medical atten-
tion immediately.
Skin contact: Wash the aected area thoroughly with soap and water, and seek
medical attention immediately.
Ingestion: Induce vomiting, and seek medical attention immediately.
7

Safety
1.3.2 Fire
In case of a re, make sure that an ABC or carbon dioxide extinguisher is
nearby.
WARNING
The battery module may catch re when heated above 150°C.
If a re breaks out where the battery module is installed, do these actions:
1. Extinguish the re before the battery module catches re.
2. If the battery module has caught re, do not try to extinguish the re. Evacuate
people immediately.
WARNING
If the battery catches re, it will produce noxious and poisonous gases. Do not
approach.
1.3.3 Wet batteries
If the battery module is wet or submerged in water, do not try to access it. Contact
LG Chem or your distributor for technical assistance.
1.3.4 Damaged batteries
Damaged batteries are dangerous and must be handled with extreme caution. They
are not t for use and may pose a danger to people or property. If the battery module
seems to be damaged, pack it in its original container, and then return it to LG Chem
or your distributor.
CAUTION
Damaged batteries may leak electrolyte or produce ammable gas. If you suspect
such damage, immediately contact LG Chem for advice and information.
1.4 Qualied installers
This manual and the tasks and procedures described herein are intended for use by
skilled workers only. A skilled worker is dened as a trained and qualied electrician
or installer who has all of the following skills and experience:
• Knowledge of the functional principles and operation of on-grid systems.
• Knowledge of the dangers and risks associated with installing and using electrical
devices and acceptable mitigation methods.
• Knowledge of the installation of electrical devices
8

Safety
• Knowledge of and adherence to this manual and all safety precautions and best
practices.
1.5 Safety gear
Wear the following safety gear when dealing with the battery module. Installers
must meet the relevant requirements of international standards, such as IEC 60364
or the domestic legislation.
Insulated gloves Safety goggles Safety shoes
1.6 Contact information
Use the contacts below for technical assistance. These phone numbers are available
only during business hours on weekdays.
Telephone Email
Europe [phone] [email protected]
USA [phone] [email protected]
Australia [phone] [email protected]
Korea and other regions [phone] [email protected]
9

Chapter 2
Introduction
The EM048063P3S and EM048126P3S series battery modules are designed to be part
of a small-scale electric energy storage system (ESS) for two purposes:
• Telecommunication system backup
• Residential photovoltaic system
1ESS 2Inverter or rectier
NOTE
Hereafter in this manual, ESS refers to a set consisting of EM048063P3S or
EM048126P3S series battery modules. Higher-level system refers to a rectier or
inverter that connects to the ESS to charge and discharge the ESS.
10

Introduction
2.1 Features
The EM048063P3S and EM048126P3S series battery modules have the following fea-
tures:
Built-in battery management system (BMS): A battery module’s BMS monitors its
operation and prevents the battery from operating outside design limitations.
When a battery module enters an abnormal state, the BMS issues an alert and
restricts or disables the battery’s operation.
Hot-swap capability: Faulty battery modules can be replaced while the ESS remains
in operation.
NOTE
This feature is not supported with the residential models.
Scalability: An ESS can comprise up to 10 units connected in parallel. Battery mod-
ules can be arranged not only layer upon layer but also side by side.
Power saving: When a battery voltage drops below the specied limit, it turns o.
The battery module wakes up when a voltage higher than or equal to 33 V is
applied.
2.2 System components
Aside from the battery modules, other items might be provided separately.
Battery module Power cable Intra-rack communication
cable
Higher-level communication
cable
The table below lists the number of each component.
Battery module As demanded (N)
Power cable As many as the number of battery modules (N)
Intra-rack communication cable One less than the number of battery modules (N-1)
Higher-level communication cable 1
11

Introduction
2.3 Product overview
2.3.1 Appearance
1Fan
2Status indicators
3RJ48 port for intra-rack communication cable
4RJ48 port for higher-level communication cable
5Positive connector (+)
6Power terminal compartment
7Negative connector (−)
8On/O button
9Dry contact
10 Handle
2.3.2 Model lineup
There are four EM048063P3S series models and three EM048126P3S series models.
Model Capacity Protocol C-rate Fan Application
EM048063P3S1 63 A·h Modbus 485 1.0 C Equipped Telecom
EM048063P3S2 63 A·h Modbus 485 1.0 C Not Equipped Residential
EM048063P3S4 63 A·h CAN 2.0B 1.0 C Not Equipped Residential
EM048063P3S5 63 A·h CAN 2.0B 0.5 C Not Equipped Residential
EM048126P3S6 126 A·h Modbus 485 0.5 C Not equipped Telecom
EM048126P3S7 126 A·h CAN 2.0B 0.5 C Not equipped Residential
EM048126P3S8 126 A·h Modbus 485 0.5 C Not equipped Residential
These models are the same in hardware but slightly dierent from each other in soft-
ware.
NOTE
An ESS can consist of up to 10 units of the same battery module. Using dierent
models of battery modules together is not permitted.
12

Introduction
2.3.3 Status indicators
The indicators on the front of a battery module show its operating state.
Normal
SOC ≥ 75%
SOC ≥ 50%
SOC ≥ 25%
SOC < 25%
Voltage imbalance
Warning
Fault 1
Fault 2
Green indicator: The rst indicator on the left is on solid GREEN to show that the
module is operating normally. While the module is initialized, only this indi-
cator is on.
Blue indicators: In normal operation, the four indicators on the right show the mod-
ule’s state of charge (SOC). Each indicator represents 25% of a full charge. If
the SOC value is 50%, the three rightmost indicators are on solid BLUE. The
blue indicators of the slave modules look as below.
Whereas, the leftmost blue indicator on the master module ashes.
The blue indicators are also used to show the battery module’s model number
and ID. See Identifying model number on page 24 and Commissioning the
ESS on page 30 for details.
Voltage imbalance: In the course of activating the ESS, the two leftmost indicators
may turn on simultaneously temporarily due to voltage imbalance between the
battery modules.
13

Introduction
Warning: When the module is in a warning state, the green indicator ashes
GREEN. The blue indicators still shows the SOC.
Fault 1: When the module is in a low-level fault state, the green indicator turns o
and the second indicator from the left ashes RED. Moreover, the blue indica-
tors show the fault number in binary form.
Fault 2: When the module is in a high-level fault state, the green indicator turns o
and the second indicator from the left comes on solid RED. Moreover, the blue
indicators show the fault number in binary form.
For details about warning and fault states, see the Service Manual.
2.3.4 Dry contact
There is a dry contact which can be used to signal to external devices, such as a stack
light or a buzzer. Where appropriate, make connections to the dry contact of the
master battery module. See Master and slave modules on page 16 for details about
the master module.
When a battery module enters a warning or fault 1 state, the relay’s terminal 1 and 2
become closed. When it enters a fault 2 state, terminal 3 and 4 become closed.
14

Introduction
Terminal 1and 2Terminal 3and 4
Normal state Open Open
Warning or Fault 1 state Closed Open
Fault 2 state Open Closed
NOTE
The current through each terminal must not exceed 90 mA.
15

Introduction
2.4 Master and slave modules
One of battery modules installed in the ESS acts as the master module, and the others
act as slave modules. As the representative of the ESS, the master module commu-
nicates with the higher-level system.
A module installed at the top or bottom of the rack must be the master module. Press-
ing the On/O button on a module designates it as the master module and activates
not only the master module but also the slave modules.
All of the battery modules are sequentially assigned IDs by the master module.
If the top module’s On/O button is pressed, the
module becomes the master module and also the
rst module, as illustrated by this gure.
If the bottom module’s On/O button is pressed,
the module becomes the master module and also
the rst module, as illustrated by this gure.
NOTE
This manual assumes that the top module is used as the master module.
16

Introduction
2.5 Specications
Performance
EM048063P3Sx EM048063P3S5 EM048126P3Sx
Nominal capacity163 A·h 63 A·h 126 A·h
Nominal energy13.3 kW·h 3.3 kW·h 6.5 kW·h
Nominal voltage 51.8 V 51.8 V 51.8 V
Operating voltage 42 to 58.8 V 42 to 58.8 V 42 to 58.8 V
Floating voltage 57.4 V Max. 57.4 V Max. 57.4 V Max.
Maximum charge/discharge current263 A 31.5 A 63 A
Maximum charge/discharge power23.3 kW 1.6 kW 3.3 kW
Continuous charge/discharge power23.0 kW 1.5 kW 3.0 kW
Round trip eciency195% or more 95% or more 95% or more
Ingress protection rating IP20 IP20 IP20
Cooling Forced air cooling or
natural convection
Natural convection Natural convection
1At standard conditions:
• Charge: CC-CV, with 0.3 CC, to 58.8 V (3.15 A cut o) at 25 °C
• Discharge: CC, with 0.3 CC, to 42 V at 25 °C
2It can be derated in accordance with the power limit by the BMS.
Dimensions and weight
EM048063P3Sx EM048126P3Sx
Length 338.8 mm (13.3 in) 586.6 mm (23.1 in)
Width 445 mm (17.5 in) 445 mm (17.5 in)
Width with mounting brackets 483 mm (19.0 in) 483 mm (19.0 in)
Height 110 mm (4.3 in) 110 mm (4.3 in)
Weight126.5 kg (58.4 lb) 44 kg (97.0 lb)
1A battery module’s weight varies slightly depending on its battery cells’ weight.
338.8
110
483
445
586.6
110
483
445
17

Introduction
Communication interface
Protocol CAN 2.0B1(11-bit identier) or Modbus 4852
Port RJ48
1500 kpbs
219200 bps
Dry contact
Warning or Fault 1 Terminal 1 and 2 closed
Fault 2 Terminal 3 and 4 closed
Operating conditions
Available operating temperature −10 to 45°C (14 to 113°F)
Optimal operating temperature 15 to 30°C (59 to 86°F)
Storage temperature −30 to 60°C (−22 to 140°F)
Self-discharge rate during storage Less than 6% per year at 25 °C
Humidity 5 to 95% (non-condensing)
Altitude Below 2000 m
Scalability
Up to 10 units with parallel connection:
• EM048063P3Sx: up to 630 A·h
• EM048126P3Sx: up to 1260 A·h
Certications
• UL1642
• UL1973
• TUV (IEC 62619)
• S-mark (JIS C 8715-2)
• CE
• RCM
• FCC
18

Chapter 3
Installation Prerequisites
3.1 Installation location
Make sure that the installation location meets the following conditions:
• Never stack battery modules directly on each other but use an appropriate rack.
• The building is designed to withstand earthquakes.
• The location is far away from the sea, to avoid salt water and humidity.
• The oor is at and level.
• There are no ammable or explosive materials nearby.
• The ambient temperature should be within the range of −10 to 45°C.
• The temperature and humidity stays at a constant level.
• There is minimal dust and dirt in the area.
• There are no corrosive gases present, including ammonia and acid vapor.
NOTE
If the ambient temperature is outside the operating range, the battery module
stops operating to protect itself. The optimal temperature range for the battery
module to operate is 15°C to 30°C. Frequent exposure to harsh temperatures may
deteriorate the performance and lifetime of the battery module.
19

Installation Prerequisites
3.2 Resistor for the communication interface of the higher-level system
3.2.1 Modbus
RTX+
RTX−
GND
1 2 345
6789
RTX+ RTX−
If the Modbus protocol is used between the ESS and the higher-level system, make
sure to install a 120 Ω resistor between the RTX+ and RTX− channels on the inside of
the connector to or of the higher-level system.
3.2.2 CAN
CAN_L
CAN_H
GND
123 4 5
678 9
CAN_L CAN_H
If the CAN protocol is used between the ESS and the higher-level system, make sure
to install a 120 Ω resistor between the CAN_L and CAN_H channels on the inside of
the connector to or of the higher-level system.
20