Invacare LiNX - 4 Replacing Wheelchair Components; General Information on Setup; Battery Synchronisation on New Batteries; Replacing Power Module as Spare Part

ReplacingWheelchairComponents
4ReplacingWheelchair
Components
4.1Generalinformationonsetup
Thetasksdescribedinthischapterareintendedtobe
performedbytrainedandauthorizedservicetechnicians
forinitialsetup.Theyarenotintendedtobeperformed
bytheuser.
4.2BatterySynchronisationonNew
Batteries
TheLiNXenhancedbatterygaugeintegratesnew
technologythatdeterminestheStateofCharge(SOC)
oflead-acidbatteriesmoreaccuratelythanconventional
batterygaugeswhicharebasedonbattery-terminal
voltage.
•ThenewenhancedgaugeestimatestherealSOCby
lookingatanumberoffactors,notjustinstantaneous
terminalvoltage,whichonitsown,isapoorindicator
ofSOC.
•Thegaugedoesnotmeasurecurrent,whichisdifcult
todoinapowerwheelchairsystem.
•Thegaugedeterminesifthebatteryischargingor
discharging,anddependingonthisstate,applieslogic
andcalculationstondtherealSOC.Partofthisis
knowingtherecenthistoryofthebatteryuse.
•Thegaugemodelsthedischargebasedontheterminal
voltage,therateofchangeofterminalvoltageand
howlongthebatteryhasbeeninthisstate,toget
anactualSOC.
•Thenewgaugedifferentiatesbetweenrealcharging
andregeneratedvoltageorrecovery,whichcauses
adistortionofthechargeestimateinconventional
gauges.
•Ifthebatteryisactuallycharging,thechangeinSOC
iscalculatedbasedonwhereitisinthechargecycle,
therateofchangeintheterminalandhowlongit
hasbeencharging.
NewBatteries
Theenhancedbatterygaugeusestherecentcharge/
dischargehistoryofthebatterytocalculatetheSOC.
Whennewbatteriesareconnected,thishistoryisno
longerapplicable,butthegaugewillcontinuetocalculate
theSOCbasedontheinformationfrompreviousbattery.
Torectifythis,theenhancedbatterygaugeneedstobe
synchronisedtothenewbatteries.
Batterymanufacturersrecommendthatbatteries
areformattedwhennew.Thisinvolvescycling
thebatteryanumberoftimeswithoutdeep
dischargingthem.Thisproceduredoesnoteimpact
onthegaugesynchronisationfornewbatteries.
SynchronizingnewBatteries
1.Connectnewbatteriestopowerwheelchair .
2.ResetbatterystatisticsusingLiNXAccesstools,see
ResettingBatteryUsage,page143
.
3.Connectpowerwheelchairtobatterycharger .This
mustbedonewithsystemswitchedONorwithin24
hoursofsystembeingswitchedon.
4.Leavepowerwheelchairconnectedtobatterycharger
forlongerthantenminutes.
5.Waituntilbatterygaugedisplaysmorethan80%
(5LEDs).
6.Leavepowerwheelchairconnectedtobatterycharger
foratleasttwohours.Foranewbattery,the
timeshouldbeanextendedperiodasperbattery
manufacturer’srecommendations.
4.3ReplacingPowerModuleasSpare
Part
Withreplacingthepowermodulethecurrentlyused
chaircongurationislost.Uptoeightpre-congured
congurationsfordifferentwheelchairswerestoredon
powermoduleuntilJune2018.Forrulesforlenaming,
see12StructureofProgramNames,page145 .
Werecommendtotakebackupsofcurrent
conguration,ifpossible.Formoreinformationon
creatingbackupssee7.3.7Savingprograms,page
80foriOSor9.5.4Saveaprogramasale,page
117forPC.
1.Ifpossible,takebackupofcurrentconguration.
2.Replacepowermodule.Formoreinformationsee
correspondingservicemanualofwheelchair.
3.ConnectwheelchairandLiNXAccesstool.
4.Performsetupprocedure.See4.4SetupProcedure
AfterPowerModuleReplacement,page55.
4.4SetupProcedureAfterPower
ModuleReplacement
Afterreplacingapowermodulewerecommendthatyou
performfollowingprocedurestoensurethatcustomized
settingsofyouruserwontbelostandtheusergetsaccess
tothelatestfeaturesofLiNX.
UpgradingFirmware/WriteBundleFile
UpgradingthermwareoftheLiNXcomponentstothe
latestversionsallowyourusertousethenewestfeatures
andotherimprovementsInvacareintroducedforthe
wheelchair.Currentlytherearetwodifferentwaysto
ensurethatyoursystemisup-to-date:
•UsingFirmwareUpgradeMode(needsinternet
connection)
•WriteBundleFile
Bundlelescontainatleastonewheelchairconguration
and/orthelatestrmwareupgradesfortheinstalledLiNX
components.
1.Upgradermwaretolatestrelease.
a.FirmwareUpgradeMode:ForiOStool,see7.3.8
UpgradingFirmware,page81.ForPCtool,see
9.5.6UpgradingFirmware,page117 .
b.BundleFile:ForiOStool,see7.4.2WritingBundle
Files,page82
.ForPCtool,see9.6.3Writingbundle
lestoachair,page120
.
RestoringBackupFile
Werecommendtowriteapreviouslysavedbackup
letowheelchairafterinstallinganewpower
module.
1605129-G55