Dyness B4850 User manual

B4850 ESS Unit
Operation Manual
TM012 Rev. 003

2
Sommario
Statement of Law .....................................................................................................4
1.0 Safety ...............................................................................................................6
1.1 SkillsofQualiedPersonnel .....................................................................6
1.2 Symbols ....................................................................................................6
1.3 BeforeConnecting ....................................................................................8
1.4 Inusing......................................................................................................9
1.5 Safehandlingoflithiumbatteriesguide ....................................................9
1.5.1 Schematicdiagramofsolution.......................................................9
1.6 Productidentitydenition........................................................................10
2.0 Introduction ...................................................................................................12
2.1 BriefIntroduction.....................................................................................12
2.2 ProductProperties ..................................................................................12
2.3 Systemparameter...................................................................................13
2.4 InterfaceDenition ..................................................................................14
2.4.1 DIPswitchdenitionanddescription ...........................................15
2.5 BatteryManagementSystem(BMS).......................................................18
2.5.1 VoltageProtection........................................................................18
2.5.2 CurrentProtection........................................................................18
2.5.3 TemperatureProtection ...............................................................18
2.5.4 OtherProtection..........................................................................18
3.0 Installation .....................................................................................................19
3.1 Tools........................................................................................................19
3.2 SafetyGear............................................................................................19
3.3 SystemWorkingEnvironmentsChecking ...............................................20
3.3.1 Cleaning.......................................................................................20
3.3.2 Temperature.................................................................................20
3.3.3 Fire-extinguisherSystem .............................................................20
3.3.4 GroundingSystem .......................................................................20
3.3.5 Safetyarea ..................................................................................20
3.4 Handlingandplacement .........................................................................21
3.5 Unpackinginspection..............................................................................22
3.6 Engineeringcoordination ........................................................................23
3.7 Equipmentinstallation.............................................................................23
3.7.1 Installationpreparation ................................................................23
3.7.2 Cabinetmechanicalinstallation ...................................................23
3.7.3 Electricalinstallation ....................................................................24
3.7.4 Batteryparametersettingsontheinverter...................................26
3.7.5 Registeronthewebsiteafterinstallation .....................................26
4.0 Use, maintenance and troubleshooting......................................................27
4.1 Batterysystemusageandoperationinstructions ...................................27
4.2 Alarmdescriptionandprocessing...........................................................29
4.3 Analysisandtreatmentofcommonfaults ...............................................30

B4850 3

4
STATEMENT OF LAW
CopyrightofthisdocumentbelongstoDaqinNewEnergyTech(Taizhou)Co.,Ltd.
Nopartofthisdocumentationmaybeexcerpted,reproduced,translated,annotated
orduplicatedinanyformorbyanymeanswithoutthepriorwrittenpermissionof
DaqinNewEnergyTech(Taizhou)Co.,Ltd.AllRightsReserved.
Thisproductcomplieswiththedesignrequirementsofenvironmentalprotection
andpersonalsafety.Thestorage,useanddisposaloftheproductsshallbecarried
outinaccordancewiththeproductmanual,relevantcontractorrelevantlawsand
regulations.
CustomercanchecktherelatedinformationonthewebsiteofDaqinNewEnergy
Tech(Taizhou)
Co.,Ltdwhentheproductortechnologyisupdated.
WebURL:http://www.dyness-tech.com
Pleasenotethattheproductcanbemodiedwithoutpriornotice.

B4850 5

6
1.0 SAFETY
B4850isahighvoltageDCsystem,operatedbyskilled/qualiedpersonnelonly.
Readallsafetyinstructionscarefullypriortoanyworkandobservethematalltimes
whenworkingonwiththesystem
Incorrectoperationorworkmaycause:
• injuryordeathtotheoperatororathirdparty;
• damagetothesystemhardwareandotherpropertiesbelongingtotheoperatorora
thirdparty.
1.1 Skills of Qualied Personnel
Qualiedpersonnelmusthavethefollowingskills:
• trainingintheinstallationandcommissioningoftheelectricalsystem,aswellasthe
dealingwithhazards;
• knowledgeofthismanualandotherrelateddocuments;
• knowledgeofthelocalregulationsanddirectives.
1.2 Symbols
DANGER
Lethal voltage!
Battery strings will produce DC power and can cause a lethal voltage and an
electric shock.
Only qualied person can perform the wiring of the battery strings.
Warning
Risk of battery system damage or personal injury.
Do not pull out the connectors while the system is working!
De-energize from all multiple power sources and verify that there is no
voltage.
Caution
Risk of battery system failure or life cycle reduces.
Read the product and operation manual before operating the battery system!
Danger! Safety!
Warning electric shock!
Do not place near ammable material
Do not install the system in an outdoor area

B4850 7
Do not reverse connection the positive and negative.
Do not place near open ame.
Do not place at the children and pet touchable area.
Recycle label.
Label for Waste Electrical and Electronic Equipment (WEEE) Directive
(2012/19/EU)
L’etichetta del certicato per EMC.
The certicate label for EMC.
The certicate label for Safety by TÜV SÜD.
The certicate label for Safety by TÜV Rheinland.
Danger.
Batteriesdeliverelectricpower,resultinginburnsorarehazardwhentheyare
shortcircuited,orwronglyinstalled.
Danger. Lethalvoltagesarepresentinthebatteryterminalsandcables.Severe
injuriesordeathmayoccuriftouchthecablesandterminals.
Warning. Donotopenordeformthebatterymodule,otherwisetheproductwillbe
outofwarrantyscope.
Warning. Wheneverworkingonthebattery,wearsuitablepersonalprotective
equipment(PPE)suchasrubbergloves,rubberbootsandgoggles.
Warning. Forbatteryinstallation,theinstallershallrefertoNFPA70orsimilarlocal
installationstandardforoperation.
Caution.
Impropersettingsormaintenancecanpermanentlydamagethebattery.
Caution. Incorrectinverterparameterswillleadtoafurtherfaulty/damageto
battery.

8
Caution. Itisveryimportantandnecessarytoreadtheusermanualcarefully
(intheaccessories)beforeinstallingorusingbattery.Failuretodosoortofollow
anyoftheinstructionsorwarningsinthisdocumentcanresultinelectricalshock,
seriousinjury,ordeath,orcandamagebattery,potentiallyrenderingitinoperable.
• Ifthebatteryisstoredforlongtime,itisrequiredtochargethemeverysixmonths,
andtheSOCshouldbenolessthan90%.
• Batteryneedstoberechargedwithin12hours,afterfullydischarged.
• Donotinstalltheproductinoutdoorenvironment,oranenvironmentoutofthe
operationtemperatureorhumidityrangelistedinmanual.
• Donotexposecableoutside.
• Donotconnectpowerterminalreversely.
• Allthebatteryterminalsmustbedisconnectedformaintenance.
• Anyforeignobjectisprohibitedtoinsertintoanypartofbattery.
• Donotusecleaningsolventstocleanbattery.
• Donotexposebatterytoammableorharshchemicalsorvapors.
• Donotpaintanypartofbattery,includeanyinternalorexternalcomponents.
• DonotconnectbatterywithPVsolarwiringdirectly.
• Pleasecontactthesupplierwithin24hoursifthereissomethingabnormal.
• Thewarrantyclaimsareexcludedfordirectorindirectdamageduetoitemsabove.
1.3 Before Connecting
• Afterunpacking,pleasecheckproductandpackinglistrst,ifproductisdamaged
orlackofparts,pleasecontactwiththelocalretailer.
• Beforeinstallation,besuretocutoffthegridpowerandmakesurethebatteryisin
theswitched-offmode.
• Wiringmustbecorrect,donotmistakethepositiveandnegativecables,andensure
noshortcircuitwiththeexternaldevice.
• ItisprohibitedtoconnectthebatteryandACpowerdirectly.
• The embeddedBMSisdesignedfor48VDC,pleaseDONOTconnectbatteryin
series.
• Batterysystemmustbewellgroundandtheresistancemustbelessthan100mΩ.
• Pleaseensuredtheelectricalparametersofbatterysystemarecompatibleto
relatedequipment.
• Keepthebatteryawayfromwaterandre.

B4850 9
1.4 In using
• Ifthebatterysystemneedstobemovedorrepaired,thepowermustbecutoffand
thebatteryiscompletelyshutdown.
• Itisprohibitedtoconnectthebatterywithdifferenttypeofbattery.
• Itisprohibitedtoputthebatteriesworkingwithfaultyorincompatibleinverter.
• Itisprohibitedtodisassemblethebattery(QCtabremovedordamaged).
• Incaseofre,onlydrypowderreextinguishercanbeused,liquidre
extinguishersareprohibited.
• Pleasedonotopen,repairordisassemblethebatteryexceptstaffsfromDyness
orauthorizedbyDyness.Wedonotundertakeanyconsequencesorrelated
responsibilitywhichbecauseofviolationofsafetyoperationorviolatingofdesign,
productionandequipmentsafetystandards.
1.5 Safe handling of lithium batteries guide
1.5.1 Schematicdiagramofsolution

10-Safety
1.6 Product identity denition
Fig.1.1-BatteryEnergyStorageSystemnameplate

Safety-11
B4850

12-Introduction
2.0 INTRODUCTION
2.1 Brief Introduction
B4850lithiumironphosphatebatterysystemisastandardbatterysystemunit,
customerscanchooseacertainnumberofB4850accordingtotheirneeds,by
connectingparalleltoformalargercapacitybattery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power
backuptimeandlongservicelife.
2.2 Product Properties
B4850energystorageproduct’sanodematerialsarelithiumironphosphate,
batterycellsaremanagedeffectivelybyBMSwithbetterperformance,thesystem’s
featuresasbelow.
• ComplywithEuropeanROHS,CertiedSGS,employnon-toxic,non-pollution
environmentfriendlybattery.
• Anodematerialsarelithiumironphosphate(LiFePO4),saferwithlongerlifespan.
• Carriesbatterymanagementsystemwithbetter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conguresintegratedinspectionmodule.
• Flexiblecongurationsallowparallelofmulti-batteryforlongerstandbytime.
• Self-ventilationwithlowersystemnoise.
• Lessbatteryself-discharge,thenrechargingperiodcanbeupto10monthsduring
thestorage.
• Nomemoryeffectsothatbatterycanbechargedanddischargedshallowly.
• Withwiderangeoftemperatureforworkingenvironment,-20°C~+55°C,circulation
spananddischargingperformancearewellunderhightemperature.
• Lessvolume,lighterweight.

Introduction-13
B4850
2.3 System parameter
B4850
Charge/dischargecurrent[A] 25
Maxcharge/dischargecurrent[A] 50
Nominalvoltage[V] 48
Nominalcapacity[kWh/Ah] 2.4/50
DepthofDischarge[%] 90
Moduleavailablecapacity[kWh/Ah] 2.16/45
Chargevoltage[V] 54
Dishargevoltage[V] 42
Maxcharge/dischargecurrent[A] 50
DimensionWxHxD[mm] 480x90x360
Weight[Kg] 22
Comunication RS485,CAN
Scalability upto40unitsinparallel
OperationTemperature[°C] charge0~50
discharge-20~50
StorageTemperature[°C] -10~35
Umidity[RH%] 5~85
Altitude[m] <4000
ProtectionClass IP20
OperationLife[years] 15+
Lifecycles >6.000
Coolingsystem Natural
TransferCerticate TÜV,CE,UN38.3,UL1973,
CEI-021
EMCStandard EN62619,IEC62040,CEC
Accredited
Tab.2.1-Systemparameter

14-Introduction
2.4 Interface Denition
Thissectionelaboratestheinterfacefunctionsofthefrontinterfaceofthedevice.
Fig.2.1-Thesketchofinterface
Pos. NAME DEFINITION
1Powerswitch OFF/ON,mustbeinthe“ON”statewheninuse
2Groundconnection
point Shellgroundconnection
3Positivesocket Batteryoutputpositiveorparallelpositiveline
4Negativesocket Batteryoutputnegativeorparallelnegativeline
5SW(batterywake/
sleepswitch) Whenthe“OFF/ON”switchbuttonisintheONstate,press andholdthisbuttonfor3secondstoputthebatteryintothe
power-onorsleepstate.
6SOC Thenumberofgreenlightsonshowstheremainingbattery
power.SeeTable2-3fordetails.
7ALM Redlightashingwhenanalarmoccurs,redlightalways
onduringprotectionstatus.Aftertheconditionoftrigger
protectionisreleased,itcanbeautomaticallyclosed.
8RUN Greenlightashingduringstandbyandchargingmode.Green
lightalwaysonwhendischarging.
9CAN/485 Communicationport,supportCAN/RS485communication
(factorydefaultCANcommunication)
10 DRYCONTACT /
11 ADD DIPswitch
Tab.2.2-InterfaceDenition

Introduction-15
B4850
2.4.1 DIPswitchdenitionanddescription
Whenthebatteriesareconnectedinparallel,themastercommunicateswiththe
slavesthroughtheCANinterface.Themastersummarizestheinformationofthe
entirebatterysystemandcommunicateswiththeinverterthroughCANor485..
Nota: DIPswitchfrom(1)to(3)denedifferentprotocolsanddistinguishbetween
masterandslave.DIPswitch(4)forBaudrateselection.
• DIPswitch(4)OFF:settheRS485baudrateto9600andtheCANto500k
• DIPswitch(4)ON:settheRS485baudrateto115200andtheCANto250k
ThecommunicationcablefromthemasterCANINtotheinvertercommportshould
bethecorrectone.
IfthemasteristhelatestB4850batterywithDIPswitch.
SETT. DESCRIPTION
Master Set1.WhenthebatteryworkswithGOODWE,Solis,LUX,Sofar,DEYE,
VICTRON,IMEON,Sungrow,SMA,RENAC,DELIOS,SAJ(CANComm),before
startingthebattery,youneedputthemasterDIPswitch“#3”tothe“ON”position
(tothetop),thenturnonthebatteries.
Master Set2.IfthebatterycommunicateswiththeAxpert-king/VMIII/MAX,
Innisolar,GrowattSPH/SPA(CANcomm),GMDE,turnthemasterDIPswitch
“#2”to“ON”position.
Master Set3.IfthebatterycommunicateswiththeGrowattSPFHVM-P/ES/WPV
byRS485communication,turnthemasterDIPswitch“#2”and“#3”to“ON”.
Master Set4.IfthebatterycommunicateswiththeSchneiderConextSeries,turn
themasterDIPswitch“#1”and“#3”to“ON”(MASTER4)
SlaveSet1.WhenyousetupthemasterDIPassetting1~4,
alltheslaveskeeptheDIP0000,noneedchange.
Master Set5.IfthebatterymoduleisincommunicationwiththeICCby485
communication,turnthemasterDIPswitch“#1”and“#4”to“ON”.Thisisonlyfor
ICC(aspecialcommunicationdeviceofsomeno-communicationinverter),it’sa
specialrmwareinBMS,differentfromgeneralrmware,soifcustomerswantto
usethat,pleasecontactdynesstoconrm.
Slave Set2.TheDIPswitchofslavesneedtoturnthe“#4”to“ON”atthesame
timewhilethemasterissetting5.
IftheenergystoragesystemhasonlyoneB4850,itisthemasteritself,andstillfollowthe
abovesteps.

16-Introduction
Fig.2.2-CAN/485interfacedenition:Plug(1),Socketofcommunicationport(2)
FOOT POSITION COLOR DEFINITION
PIN1 Orange/white 485A
PIN2 Orange XGND
PIN3 Green/white 485B
PIN4 Blue CANH
PIN5 Blue/white CANL
PIN6 Green Riservato
PIN7 Brown/white XIN
PIN8 Brown Riservato
PIN9 Orange/white Riservato
PIN10 Orange XGND
PIN11 Green/white Riservato
PIN12 Blue CANH
PIN13 Blue/white CANL
PIN14 Green Riservato
PIN15 Brown/white XOUT
PIN16 Brown Riservato
Tab.2.3-PinDenition

Introduction-17
B4850
BATTERY
STATUS SOC LED1 LED2 LED3 LED4 ALM RUN
Shutdown / OFF OFF OFF OFF OFF OFF
STANDBY
75%-100% OFF Flashing
50%-75% OFF OFF Flashing
25%-50% OFF OFF OFF Flashing
5%-25% OFF OFF OFF OFF Flashing
0%-5% OFF OFF OFF Flashing Flashing
0% OFF OFF OFF OFF Flashing
Charging
100% OFF Flashing
75%-100% Flashing OFF Flashing
50%-75% Flashing OFF OFF Flashing
25%-50% Flashing OFF OFF OFF Flashing
0%-25% Flashing OFF OFF OFF OFF Flashing
Discharging
75%-100% OFF
50%-75% OFF OFF
25%-50% OFF OFF OFF
5%-25% OFF OFF OFF OFF
0%-5% OFF OFF OFF Flashing
0% OFF OFF OFF OFF Flashing
Tab.2.4-LEDstatusindicators
Note: AspecialALMlightashingstate:whenthecommunicationbetweenbatteries
islostorabnormal,allthelightsfromSOCtoRUNofthemasterbatterywillash
together.
=meansgreenlightalwayson
=meansredlightalwayson
Flashing:meansgreenorredlightashing

18-Introduction
2.5 Battery Management System (BMS)
2.5.1 VoltageProtection
Low Voltage Protection in Discharging: Whenanybatterycellvoltageortotal
voltageislowerthantheprotectionvalueduringdischarging,theover-discharging
modeisactivated,andthebatterybuzzermakesanalarmsound.Thenbattery
systemstopssupplyingpowertotheoutside.Whenthevoltageofeachcellbackto
ratedreturnrange,theprotectionisover.
Over Voltage Protection in Charging: Batterywillstopschargingwhentotal
voltageoranybatterycellvoltagereachestheratedprotectionvalueduring
chargingstage.Whentotalvoltageorallcellbacktoratedrange,theprotectionis
over.
2.5.2 CurrentProtection
Over Current Protection in Charging: Whenthechargecurrent>45A,current
limitprotectionmodeisactivated,currentwillbelimitedto4A,protectionisremoved
afterratedtimedelaying10S.Circulatelikethisuntilthecurrentislowerthan45A.
Over Current Protection in Discharging: Whenthedischargingcurrentisgreater
thantheprotectionvalue55A,thebatterybuzzeralarmsandthesystemstops
discharging.Protectionisremovedafterratedtimedelaying1min.
Caution: Thebuzzersoundalarmsettingcanbemanuallyturnedoffonthe
backgroundsoftware,andthefactorydefaultison.
2.5.3 TemperatureProtection
Low/Over temperature protection in charging: Whenbattery’stemperatureis
beyondrangeof-5°C~+55°Cduringcharging,temperatureprotectionisactivated,
devicestopscharging.
Theprotectionisoverwhentemperaturebacktoratedworkingrange.
Low/Over temperature protection in discharging: Whenbattery’stemperature
isbeyondrangeof-20°C~+55°Cduringdischarging,temperatureprotectionis
activated,devicestopssupplyingpowertotheoutside.
Theprotectionisoverwhentemperaturebacktoratedworkingrange.
2.5.4 OtherProtection
Short Circuit Protection: Whenthebatteryisactivatedfromtheshutdownstate,if
ashortcircuitoccurs,thesystemstartsshort-circuitprotectionfor60seconds.
Self-Shutdown: Whendeviceconnectsnoexternalloadsandpowersupply
andnoexternalcommunicationforover72hours,devicewilldormantstandby
automatically.
Caution: Battery’smaximumdischargingcurrentshouldbemorethanload’s
maximumworkingcurrent.

Installation-19
B4850
3.0 INSTALLATION
3.1 Tools
WireCutter CrimpingModular
Plier CableTies ScrewDriver
ElectricScrew
Driver AdjustableWrench Isolatingnutdrivers Multimeter
Tab.3.1-Toolsneededtoinstallbatterypack
Danger. Useproperlyinsulatedtoolstopreventaccidentalelectricshockorshort
circuits.
Ifinsulatedtoolsarenotavailable,covertheentireexposedmetalsurfacesofthe
availabletools,excepttheirtips,withelectricaltape.
3.2 Safety Gear
Itisrecommendedtowearthefollowingsafetygearwhendealingwiththebattery
pack.
Insulatinggloves Safetygoggles Safetyshoes

20-Installation
3.3 System Working Environments Checking
3.3.1 Cleaning
Warning! Thecleanconditionwillcausetheisolationcharacteristicofthesystem.
Beforeinstallationandsystemworking,thedustandironscurfmustbecleanto
ensuretheenvironmentscleaning.Andtheenvironmentmusthavecertainanti-dust
ability.
Thesystemafterlongtermrunningmustcheckifthehumidityanddustcoveror
not.Ifheavydustcoverwithhighhumidityonthesystem,stopthesystemrunning
andmakeclean.
3.3.2 Temperature
Caution. B4850:systemworkingtemperaturerange-20°-55°C;Optimum
temperature:15°C-30°C.
Therearenomandatoryventilationrequirementsforthebatterymodule,butplease
avoidinstallationinconnedareas.Avoidhighsalinity,humidityorhightemperature
conditions.
Caution. Theinstallationareasshallavoidofdirectsunlight.
Outoftheworkingtemperaturerangemaycausethebatteryreducesthecycleof
lifeeventriggerthebatterysystemover/lowtemperaturealarmorprotection.
Theroomshouldbeequippedwithcooling/heatingsystem.Iftheenvironmentis
lowerthan0°C,theheatingsystematrstmustbeturnedon.
3.3.3 Fire-extinguisherSystem
Warning. Theroommustbeequippedwithre-extinguishersystemforlithium-ion
battery.Theresystemneedstoberegularlycheckedtobeinnormalcondition.
Refertotheusingandmaintenancerequirementsoflocalreequipmentrelevant.
3.3.4 GroundingSystem
Warning. Beforethebatteryinstallationbesurethegroundingpointofthe
basementisstableandreliable.Ifthebatterysystemisinstalledinanindependent
equipmentcabin(e.g.container),makesurethegroundingofthecabinisstable
andreliable.Theresistanceofthegroundingsystemmustbe≤100mΩ.
3.3.5 Safetyarea
Thedistancefromheatsourceismorethan2meters.
Thedistancefromairoutletofinverterismorethan0.5meters.