LG RESU 6.4 EX User manual
Residential Energy Storage Unit
6.4 EX Battery Pack
For Photovoltaic Systems
Installation Manual
April 2015 | Edition 1
This manual describes how to safely install the RESU®6.4 EX battery pack
from LG Chem.
Read this manual thoroughly before you attempt to install the product, and
follow the instructions carefully 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 clarication.
NOTE
The information included in this document is accurate at the time of publi-
cation. However, this product is subject to change without prior notice. In
addition, the illustrations in this document are meant only to help explain
system conguration concepts and installation instructions. The illustrated
items may dier from the actual items at the installation location.
Contents
1 Introduction 5
1.1 Features ................................ 5
1.2 PackageItems ............................. 5
1.3 LEDIndicators............................. 6
1.4 Specications ............................. 7
2 Safety 9
2.1 General Precautions for the Battery Pack . . . . . . . . . . . . . . 9
2.2 Tools .................................. 10
2.3 SafetyGear............................... 10
2.4 WarningLabels ............................ 11
3 Installation 12
3.1 Installation Location . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Installing the Battery Pack . . . . . . . . . . . . . . . . . . . . . . 13
Mounting the battery pack to a wall . . . . . . . . . . . . . . . . 13
Connecting the battery pack to the inverter . . . . . . . . . . . . 14
3.3 Expanding the Battery Pack . . . . . . . . . . . . . . . . . . . . . 17
Connecting an expansion pack to the main pack . . . . . . . . . 17
Mounting an expansion pack to a wall . . . . . . . . . . . . . . . 19
3.4 Checking Before Operation . . . . . . . . . . . . . . . . . . . . . 20
Circuit breaker switch . . . . . . . . . . . . . . . . . . . . . . . . 20
Circuit breaker’s trip button . . . . . . . . . . . . . . . . . . . . . 20
Voltage ................................. 21
3.5 GettingStarted ............................ 21
4 Troubleshooting 22
5 Emergency Situations 24
5.1 LeakingBatteries ........................... 24
5.2 Fire ................................... 24
5.3 WetBatteries.............................. 25
5.4 DamagedBatteries .......................... 25
3
Contents
6 Warranty 26
6.1 WarrantyCoverage .......................... 26
6.2 Limitation of Liability . . . . . . . . . . . . . . . . . . . . . . . . 26
A Technical Information 27
4
1Introduction
1.1 Features
The RESU®6.4 EX battery pack has the following features:
Photovoltaic system: This battery pack is designed for household photovoltaic
systems.
Battery management system (BMS): The battery pack’s built-in BMS moni-
tors its operation and prevents the battery from operating outside design
limitations. See Troubleshooting on page 22.
Expandability: This battery pack can be easily expanded by adding expan-
sion battery packs. See Expanding the Battery Pack on page 17.
1.2 Package Items
Items other than those listed below, such as a power cable, may be provided
separately.
Status Charge/ Discharge
RESU 6.4
R
Battery pack
Communication cable
adapter Mounting brackets
For details on how these items are used, see Installation on page 12.
5
Introduction
NOTE
A tag is attached to the gender changer side of the provided cable adapter.
The tag is labeled as TYPE-S or TYPE-N.TYPE-S adapters are supposed
to be used with SMA inverters, and TYPE-N ones are supposed to be used
with Nedap inverters. If the wrong cable adapter is identied, contact LG
Chem or an authorized dealer.
1.3 LED Indicators
Status Charge/ Discharge
RESU 6.4
R
Status Charge / Discharge
RESU 6.4 EX
R
The LED indicators on the front of the battery pack show its operational state
as follows:
Standby : When the battery pack is ready for operation, the Status indi-
cator is lit in red.
Normal operation : When the battery pack is in normal operation, the
Status indicator is lit in green.
Charge in progress : While the battery pack is charging, the Charge /
Discharge indicator is lit in red.
Discharge in progress : While the battery pack is discharging, the Charge
/ Discharge indicator is lit in green.
Alarm : When the battery pack is in a warning or fault state, the Sta-
tus indicator alternately ashes in green and orange. See Troubleshoot-
ing on page 22.
6
Introduction
1.4 Specications
Dimensions and weight
Length 406 mm
Width 165 mm
Height 664 mm
Weight 60 kg
StatusCharge/ Discharge
RESU 6.4
R
664
165
406
Performance
Nominal voltage 51.8 V
Operating voltage 45.2 V to 58.1 V
Nominal capacity 126 A·h
Nominal energy 6.4 kW·h
Nominal charge current 42 Aa
Nominal discharge current 42 Ab
Maximum discharge current 110 A
ain constant-current/constant-voltage charging mode
bin constant-current discharging mode
7
Introduction
Cable requirements
Power cable from inverter 4 AWG (21 mm2) or thicker, UL 1283
Cable lug M8
Environmental requirements
Available operating temperature 0°C to 40°C
Optimal operating temperature 15°C to 30°C
Operating relative humidity 25% to 95%
Storage temperature −30°C to 50°C
Storage relative humidity 25% to 95%
Communication interface
Protocol CAN 2.0B
Channel 1
8
2Safety
2.1 General Precautions for the Battery Pack
WARNING
Failure to observe the precautions described in this section can cause seri-
ous injury to persons or damage to property.
Observe the following precautions:
• Risks of explosion
–Do not subject the battery pack to strong impacts.
–Do not crush or puncture the battery pack.
–Do not dispose of the battery pack in a re.
• Risks of re
–Do not expose the battery pack to temperatures in excess of 50°C.
–Do not place the battery pack near a heat source such as a replace.
–Do not expose the battery pack 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 pack.
–Do not touch the battery pack with wet hands.
–Do not expose the battery pack to moisture or liquids.
–Keep the battery pack away from children and animals.
• Risks of damage to the battery pack
–Do not allow the battery pack to come in contact with liquids.
–Do not subject the battery pack to high pressures.
–Do not place any objects on top of the battery pack.
9
Safety
2.2 Tools
The following tools are required to install the battery pack:
Torque screwdriver Phillips-screwdriver bit Hex-key bit
Phillips-head screwdriver Wire cutter
Use properly insulated tools to prevent accidental electric shock or short cir-
cuits. If insulated tools are not available, cover the entire exposed metal sur-
faces of the available tools, except their tips, with electrical tape.
It is highly recommended to use adjustable tools and measuring instruments
that are certied for precision and accuracy.
2.3 Safety Gear
It is recommended to wear the following safety gear when dealing with the
battery pack.
Insulated gloves Safety goggles Safety shoes
10
Safety
2.4 Warning Labels
The nameplate is attached to the right side of the battery pack, and warning
labels are attached to the top and left side.
Status Charge/ Discharge
RESU 6.4
R
ㆍGerät n icht in di e Nähe offener Flammen stellen
oder anzünden. Gefahr von Feuer oderExplosion!
ㆍ
Hochhebendurch Einzelpersonen kannzuVerletzungen
führen!lmmer nur mit Assistenz das Gerät bewegen
oder anheben.
ㆍ
Gerät nichtFlussigkeiten oderFeuchtigkeitaussetzen!
Gerät bei Flussig keitsbenet zung nicht berühren!
ㆍ
Ger ät vo n Kin der n ode r Tier en fer nha lten !
ㆍ
DasSitzenundPlatzierenvon schweren Gegenständen
auf die Batterieabdeckung ist zu unterla ssen,um
Verbiegungen und Brüche zu vermeiden.
⻱ᯙࡽᱥྙᱶእݕݚᯱᨱ۵ᱩݡಽᇥญᇥ⧕⦹Ñӹᙹญ⦹ḡษᝎ᪅ᔢ⧕qᱥ۵⪵ᰍ᮹᭥⨹ᯕᯩܩ݅⻱ᯥ᮹ಽ∊ᱥ۵ႊᱥ⦹ḡษᝎ᪅Łᰆqᱥ۵⪵ᰍ᮹᭥⨹ᯕᯩܩ݅⻱Ӻ⦹ᄡ⩶∊Ċ⪚ᮡԁ⋕ಽᬕྜྷℕಽÑӹᯱ۵᮹ႊჶᮝಽᗱᔢᮥᵝḡษᝎ᪅ᱥ⧕ᧂ٥⇽ၰ⪵ᰍ᮹ᬱᯙᯕࢁᙹᯩᮝܩᵝ᮹⦹ᝎ᪅⻱
❭ᗱᱥ⧕ᧂᯕ٥⇽ࡹÑӹᯙ⪵ᖒaᜅaၽᔾ⧁ᙹ
ᯩܩ݅-(⪵⦺&44⣩ḩ❡ᨱྙ᮹⧕ᵝʑၵ௮ܩ݅⻱ᱥ⧕ᧂᯕ٩ᯕӹ⦝ᇡ۵᮹ඹᨱݠᦹᮥভᨱ۵ᙹ࠸ྜྷಽ∊ᇥ⯩ᦜᨕᵝᝎ᪅✚⯩٩ᨱᨕuᮥভᨱ۵ᖙᱶ⦽⬥᮹ᔍ᮹⊹ഭෝၼᦥᵝᝎ᪅ᝅ᮹᭥⨹ŝ⦝ᇡᨱ⧕aᯩᮥᙹᯩܩ݅⻱⪵ʑᨱaʭᯕ⦹Ñӹᗭb⦹ḡษᝎ᪅ၽᩕᨱ᮹⦽⪵ᰍ᮹᭥⨹ᯕᯩܩ݅⻱ྜྷᯕӹʑෝມญ⦹ᩍᵝŁྜྷᮥᡀᦹᮥĞᬑอḡÑӹᔍᬊ⦹ḡษᝎ᪅⻱ᱽ⣩ᯕྕÑᬑအಽ⪝ᯱ᯲ᨦ⦹݅a۵ᔢ⧕ෝ᯦ᮥᙹᯩܩ݅Ύᅕ᯲᳑ᨦᯱ᪡⧉᯲ᨦ⦹ᝎ᪅⻱ᨕฑᯕ᮹ḢᱲᱢᯙᱲⅪᮡᔝa⦹ᩍᵝᝎ᪅⻱႑░ญ⍅ქ᭥ᨱᦪÑӹྕÑᬕྜྷÕᮥಅ״ḡษᝎ᪅ᄡ⩶ᯕӹ❭ᗱᯕၽᔾ⧁ᙹᯩܩ݅
ㆍDo not plac e near open flame o r incinerate.
It may lead to fire or explosion.
ㆍKeep the un it away from moi sture or liqu id.
Do not touch or use if liquids wasspilled on it.
ㆍ
Si ngl e pe rso n li ft co ul d cau se in ju ry.
Use assi sta nce when movin g or li f t i n g .
ㆍKeep out of reach of children or animals.
ㆍDo not sit or put heavy things on this Battery
cover. It can cause deflection or fracture.
፠Abklemmung,YerlegenoderReparatur strikt verboten !
(VermeidungvonnVerletyungen, elektrischenSchocks
oderBranden). Service-Arbeitensindnur vonautorisierten
lngenieuren gestattet.
፠Eigenmachtiges Laden oder Entladen verboten!
Gefahr von Beschadigungen, elektrischen Schocks
oderBranden!
፠JeglicheBeschadigungen durch Fall,Deformierung,
Stoß,Anbohren, Schneiden sind verboten!
Gefahr von Elektrolytaustritt oderFeuer!
፠BeiVersagen desGerätes kann Elektrolyt austreten
oder entflammbare Gase entstehen.
In diesem Fallbitte direktdas LGChemESSQATeam
unter+82 43 2192720 kontaktieren.
ㆍ
Bei Elektro lytaustrit t ist der Kontakt mit dem
Elektrolyten bzgl. Augen, Haut und Kleidung zu
vermeiden. Bei Unfall betroffene Stellensofort mit
Wasser
waschen
und umgehend ärztliche Hilfe
aufsuchen.
፠Do not disconn ect, disass emble or re pair to
avoid injuries, electric shock or burns.
Service by authorized engineers.
፠
Do no t cha rge or d isc harg e ar bi tra ri ly.
It may lead to fault, electric shock or bur ns.
፠D
o not damage the unit in suchways as drop,
deform, impact, cut or spearing with a sharp
object. It may cause electrolyte leakage or fire.
፠Breakdow n of the unit may cause electrolyte
leakage o r flammable gas g eneration.
In suchcase, please contact
LG ChemESS QATeam
(DirectContactNumber:+82-43-219-2720)immediately.
፠When electrolyte leak out, avoid contact with
eyes, skin or clothes. Inevent of accident,flush
withwaterand get medicalhelp immediately.
Status Charge/ Discharge
RESU 6.4
R
11
3Installation
3.1 Installation Location
Make sure that the installation location meets the following conditions:
• The area is completely waterproof.
• The oor is at and level.
• There are no ammable or explosive materials.
• The ambient temperature is within the range from 15°C to 30°C.
• The temperature and humidity is maintained at a constant level.
• There is minimal dust and dirt in the area.
CAUTION
If the ambient temperature is outside the operating range, the battery pack
stops operating to protect itself. The optimal temperature range for the
battery pack to operate is 15°C to 30°C. Frequent exposure to harsh tem-
peratures may deteriorate the performance and life of the battery pack.
12
Installation
3.2 Installing the Battery Pack
Mounting the battery pack to a wall
It is recommended to mount the battery pack to a wall. Make sure to leave a
space of at least 20 mm between the battery pack and the wall.
20 mm
NOTE
Make sure that the battery pack stands on the oor when mounting it to a
wall.
To mount the battery pack to a wall, take the following steps:
6 mm
30 mm
50 mm
25 mm
10 mm
1. Drill holes to suit M6 (¼ in) anchor
bolts in the wall. The drilling depth
should be at least 33 mm.
2. Drive the anchor bolts through the
mounting brackets into the holes.
3. Tighten the nuts to a torque of 6 N·m.
13
Installation
Status Charge/ Discharge
RESU 6.4
R
4. There are holes for mounting brackets
on both edges of the back. Cut the re-
movable pieces out of the holes using a
wire cutter.
5. Secure the mounting brackets to the
holes using the M5 screws. Tighten the
screws to a torque of 4 N·m.
Connecting the battery pack to the inverter
WARNING
Make sure that the inverter is turned o before connecting the battery pack
to the inverter.
To connect the cables coming from the inverter to the battery pack, take the
following steps:
1. Remove the top cover. Hold both sides
of the top cover and pull it upwards.
2. Cut the removable pieces out of the
grommets on the upper part of the left
side.
14
Installation
3. Connect the provided cable adapter to
the communication port, and then con-
nect the communication cable coming
from the inverter to the cable adapter
through the grommet.
4. If the inverter has a ground wire, con-
nect it to the ground screw through the
grommet. The screw type is M6.
5. Connect the power cables to the termi-
nal block through the grommet.
a) Remove the terminal cover plate,
which is placed over the terminal
block to protect it.
b) Connect the negative cable to the
left terminal and the positive cable
to the right terminal. Tighten the
hex-socket screws to a torque of 6
N·m.
c) Restore the terminal cover plate.
15
Installation
6. Remove the protective tape that covers
the circuit breaker switch.
7. Perform the pre-operation checks. See
Checking Before Operation on page
20 and Getting Started on page 21.
8. Restore the top cover. Press down on
the top cover until it locks in place.
16
Installation
3.3 Expanding the Battery Pack
The battery capacity can be increased by adding expansion battery packs. At
most two expansion battery packs can be added.
Status Charge/Discharge
RESU 6.4
R
Status Charge/Discharge
Status Charge/Discharge
Connecting an expansion pack to the main pack
To connect an expansion battery pack to the main battery pack, take the fol-
lowing steps:
1. Remove the top cover.
2. Switch o the circuit breaker.
17
Installation
Status Charge/ Discharge
RESU 6.4
R
3. Cut the removable pieces out of the
grommets on the upper part of the
right side.
Status Charge/ Discharge
RESU 6.4
R
4. Insert the cables to be connected to
the expansion pack into the main pack
through the grommets.
Status Charge/ Discharge
RESU 6.4
R
5. A terminal resistor is attached to the
communication port in the middle. Re-
move it from the port.
6. Connect the cables to the connectors.
• The connector on the left supplies
power to the expansion pack for op-
eration.
• The main pack communicates with
the expansion pack through the
port in the middle.
• The expansion pack charges and
discharges through the connector
on the right.
Connect the cables to the expansion pack in the same way described so far.
NOTE
Attach the terminal resistor detached from the main pack to the unused
port on the right side of the expansion pack.
18
Installation
7. Switch on the circuit breaker.
8. Restore the top cover.
If another expansion pack is available, repeat the above process to connect the
rst expansion pack to the second expansion pack.
Mounting an expansion pack to a wall
Status Charge / Discharge
RESU 6.4
R
Status Charge / Discharge
Adhere the expansion pack to the right side of the main pack, and then attach
a mounting bracket to the right side of the expansion pack to mount it to the
wall. If the expansion pack is additionally installed later, remove the bracket
on the right side of the main pack. For details how to install mounting brackets,
see Mounting the battery pack to a wall on page 13.
19
Installation
3.4 Checking Before Operation
There are things that need to be checked before starting the battery pack to
ensure that it has no defects.
WARNING
Make sure that the inverter is turned o while checking the battery pack.
Circuit breaker switch
Move the circuit breaker switch to the ON
position. If the switch is on the Trip po-
sition between the ON and OFF positions,
move it to the OFF position and then to the
ON position. If the switch moves by itself
to any of the other positions, contact LG
Chem or an authorized dealer.
Circuit breaker’s trip button
Make sure that the circuit breaker switch
is put in the ON position, and then push
the circuit breaker’s trip button. If the cir-
cuit breaker switch has not moved to the
Trip position, contact LG Chem or an au-
thorized dealer.
20
Table of contents
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