LG Chem RESU 6.4 EX User manual

Residential Energy Storage Unit
6.4 EX Battery Pack
For Photovoltaic Systems
User Guide
April 2015 | Edition 1

NOTE
The information included in this document is accurate at the time of pub-
lication. However, this product is subject to change without prior notice.

Contents
1 Introduction 4
1.1 Features ................................ 4
1.2 LEDIndicators............................. 4
1.3 Specications ............................. 5
2 Safety 7
2.1 General Precautions for the Battery Pack . . . . . . . . . . . . . . 7
2.2 WarningLabels ............................ 8
3 Troubleshooting 9
4 Emergency Situations 11
4.1 LeakingBatteries ........................... 11
4.2 Fire ................................... 11
4.3 WetBatteries.............................. 12
4.4 DamagedBatteries .......................... 12
5 Warranty 13
5.1 WarrantyCoverage .......................... 13
5.2 Limitation of Liability . . . . . . . . . . . . . . . . . . . . . . . . 13
3

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 9.
Expandability: This battery pack can be easily expanded by adding expan-
sion battery packs.
1.2 LED Indicators
StatusCharge / 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.
4

Introduction
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 9.
1.3 Specications
Dimensions and weight
Length 406 mm
Width 165 mm
Height 664 mm
Weight 60 kg
StatusCharge/ Discharge
RESU 6.4
R
664
165
406
5

Introduction
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
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
6

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.
7

Safety
2.2 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 ni cht in die Näh e offener Flammen stellen
oder anzünden. Gefahr von Feuer oderExplosion!
ㆍ
Hochhebendurch Einzelpersonen kannzuVerletzungen
führen!lmmer nur mit Assistenz das Gerätbewegen
oder anheben.
ㆍ
Gerät nichtFlussigkeiten oderFeuchtigkeitaussetzen!
Gerät bei Flussigk eitsbenetzung nicht berühren!
ㆍ
Ger ät vo n Kin dern o der Ti eren f ern hal ten!
ㆍ DasSitzenundPlatzierenvon schweren Gegenständen
auf die Batterieabdeckung ist zu unterlas sen,um
Verbiegungen und Brüche zu vermeiden.
⻱ᯙ󰶟ࡽᱥྙᱶእݕݚᯱ󰩺ᨱ۵ᱩݡಽᇥญᇥ⧕⦹Ñӹᙹญ⦹ḡษᝎ᜽᪅ᔢ⧕qᱥ۵⪵ᰍ᮹᭥⨹ᯕᯩ᜖ܩ݅⻱ᯥ᮹ಽ∊ᱥ۵ႊᱥ⦹ḡษᝎ᜽᪅Łᰆqᱥ۵⪵ᰍ᮹᭥⨹ᯕᯩ᜖ܩ݅⻱Ӻ⦹ᄡ⩶∊Ċ⪚ᮡԁ⋕ಽᬕྜྷℕಽ෕Ñӹᯱ෕۵᮹ႊჶᮝಽᗱᔢᮥᵝḡษᝎ᜽᪅ᱥ⧕ᧂ٥⇽ၰ⪵ᰍ᮹ᬱᯙᯕࢁᙹᯩᮝܩᵝ᮹⦹ᝎ᜽᪅⻱
❭ᗱ᜽ᱥ⧕ᧂᯕ٥⇽ࡹÑӹᯙ⪵ᖒaᜅaၽᔾ⧁ᙹ
ᯩ᜖ܩ݅󰶋᜽-(⪵⦺&44⣩ḩ❡ᨱྙ᮹⧕ᵝ᜽ʑၵ௮ܩ݅⻱ᱥ⧕ᧂᯕ٩ᯕӹ⦝ᇡ۵᮹ඹᨱݠᦹᮥভᨱ۵󰶋᜽ᙹ࠸ྜྷಽ∊ᇥ⯩ᦜᨕᵝᝎ᜽᪅✚⯩٩ᨱᨕuᮥভᨱ۵ᖙᱶ⦽⬥󰶋᜽᮹ᔍ᮹⊹ഭෝၼᦥᵝᝎ᜽᪅ᝅ໦᮹᭥⨹ŝ⦝ᇡᨱ⧕aᯩᮥᙹᯩ᜖ܩ݅⻱⪵ʑᨱaʭᯕ⦹Ñӹᗭb⦹ḡษᝎ᜽᪅ၽᩕᨱ᮹⦽⪵ᰍ᮹᭥⨹ᯕᯩ᜖ܩ݅⻱ྜྷᯕӹ᜖ʑෝມญ⦹ᩍᵝ᜽ŁྜྷᮥᡀᦹᮥĞᬑอḡÑӹᔍᬊ⦹ḡษᝎ᜽᪅⻱ᱽ⣩ᯕྕÑᬑအಽ⪝ᯱ᯲ᨦ⦹݅a۵ᔢ⧕ෝ᯦ᮥᙹᯩ᜖ܩ݅Ύᅕ᳑᯲ᨦᯱ᪡⧉᯲ᨦ⦹ᝎ᜽᪅⻱ᨕฑᯕ᮹ḢᱲᱢᯙᱲⅪᮡᔝa⦹ᩍᵝᝎ᜽᪅⻱႑░ญ⍅ქ᭥ᨱᦪÑӹྕÑᬕྜྷÕᮥ᪍ಅ״ḡษᝎ᜽᪅ᄡ⩶ᯕӹ❭ᗱᯕၽᔾ⧁ᙹᯩ᜖ܩ݅
ㆍDo not place n ear open flame or i ncinerate.
It may lead to fire or explosion.
ㆍKeep the uni t away from mois ture or liqui d.
Do not touch or use if liquids wasspilled on it.
ㆍ
Si ngl e pe rso n lif t co uld c au se in ju ry.
Use assis tan ce when moving or l i 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,YerlegenoderReparaturstrikt verboten!
(VermeidungvonnVerletyungen, elektrischenSchocks
oderBranden).Service-Arbeitensindnurvonautorisierten
lngenieuren gestattet.
፠Eigenmachtiges Laden oder Entladen verboten!
Gefahrvon Beschadigungen, elektrischen Schocks
oderBranden!
፠JeglicheBeschadigungen durchFall, Deformierung,
Stoß,Anbohren, Schneidensind verboten!
Gefahrvon Elektrolytaustritt oder Feuer!
፠BeiVersagen desGeräteskannElektrolyt austreten
oder entflammbare Gaseentstehen.
In diesem FallbittedirektdasLG ChemESSQATeam
unter+82 43 2192720 kontaktieren.
ㆍ
Bei Elektrol ytaustritt ist der Kontakt mit dem
Elektrolyten bzgl. Augen, Haut und Kleidung zu
vermeiden. Bei Unfall betroffene Stellensofort mit
Wasser waschen und umgehend ärztlicheHilfe
aufsuchen.
፠Do not disconne ct, disassemble or repa ir to
avoid injuries, electric shock or burns.
Service by authorized engineers.
፠
Do no t cha rge or d isc harg e ar bit ra ril y.
It may lead to fault, electric shock or burn s.
፠D o not damagethe unit in such waysas drop,
deform, impact, cut or spearing with a sharp
object. It may cause electrolyte leakageor fire.
፠Breakdown o f the unit may cause electrolyte
leakage or f lammable gas ge neration.
In suchcase, pleasecontact LG ChemESS QATeam
(DirectContactNumber:[phone])immediately.
፠When electrolyte leak out, avoid contact with
eyes, skinor clothes. In event of accident,flush
withwaterand get medicalhelp immediately.
8

3Troubleshooting
Check the indicators on the front of the battery pack to determine in what state
the battery pack is.
Status Charge/Discharge
Red → GreenaO Successfully initialized
Red → Red O Initialization failedb
Green Green Discharging in normal state
Green Red Charging in normal state
Green O Waiting in normal state
Green/Orange Green Discharging in warning state
Green/Orange Red Charging in warning state
Green/Orange O Waiting in warning state
O O Circuit breaker trippedb
aThis should change in 7 seconds.
bContact your distributor in this case.
A warning state is triggered when a condition, such as voltage or temperature,
is beyond its design limitations.
The battery pack’s BMS periodically reports its operational state to the inverter.
There are two abnormal states:
Warning: When the battery pack is likely to become faulty, it goes into warn-
ing state. When a warning is reported, the inverter shows the warning
message on its display but takes no action about it.
Fault: When the battery pack falls outside prescribed limits, it goes into fault
state. When a fault is reported, the inverter immediately stops its opera-
tion and shows the fault message on the display.
The possible warning or fault messages are as follows:
• Battery Over Voltage
• Battery Under Voltage
• Battery Over Temperature
• Battery Under Temperature
• Battery Discharge Over Current
• Battery Charge Over Current
9

Troubleshooting
• BMS Internal Communication
• Battery Cell Voltage Imbalance
An abnormal state is released when the battery pack recovers its normal con-
dition.
NOTE
For a serious fault, if no proper corrective actions are taken by the inverter,
the battery pack’s circuit breaker automatically trips to protect itself. For
example, if the Status indicator stays red for more than 5 minutes, the cir-
cuit breaker trips. Use the monitoring software on the inverter to identify
what caused the fault.
10