Invacare LiNX - 2 Safety; Safety Information; Safety Notes on the Electrical System

Invacare®LiNX
2Safety
2.1Safetyinformation
WARNING!
Theproceduresinthisservicemanual,mustbe
performedbyaspecializeddealerorqualied
servicetechnician.
–Donothandlethisproductoranyavailable
optionalequipmentwithoutrstcompletely
readingandunderstandingtheseinstructions
andanyadditionalinstructionalmaterialsuch
asusermanuals,installationmanualsor
instructionsheetssuppliedwiththisproduct
oroptionalequipment.
Theinformationcontainedinthisdocumentis
subjecttochangewithoutnotice.
2.2Safetynotesontheelectrical
system
WARNING!
Fireandburnhazardduetoelectricalshorts
–Themobilitydevicemustbecompletely
switchedoffbeforeremovalof
voltage-carryingcomponents.Todo
this,removethebatteries.Forinformation
aboutremovingthebatteries,refertothe
servicemanualoftheparticularwheelchair.
–Avoidshort-circuitingthecontacts
whencarryingoutmeasurementson
voltage-carryingcomponents.
WARNING!
Riskofinjuryordamageduetoelectrical
shorts
Connectorpinsoncablesconnectedtothe
powermodulecanstillbeliveevenwhenthe
systemisoff.
–Cableswithlivepinsshouldbeconnected,
restrainedorcovered(withnon-conductive
materials)sothattheyarenotexposedto
humancontactormaterialsthatcouldcause
electricalshorts.
–Whencableswithlivepinshavetobe
disconnected,forexample,whenremoving
thebuscablefromtheremoteforsafety
reasons,makesuretorestrainorcoverthe
pins(withnon-conductivematerials).
Riskofdamagetotheconnectorpins
Ifyoutouchtheconnectorpins,theycan
becomedirtyortheycanbedamagedby
electrostaticdischarge.
–Donottouchtheconnectorpins.
Tomaximizeperformance,minimizeEMCemissions,
maximizeEMCandESDimmunity,andtokeepthecabling
ofthewheelchairsafeandtidy,observethefollowing
guidelines:
•Allwiringshouldcomplywiththerequirementsof
ISO7176-14.
•Keepallcablesasshortaspossible.
•AllcablesusedshouldberesistanttoretoVW-1
(UL1581)orsimilar .
•Avoidwireloops,especiallyloopsofsinglewires
insteadofwirepairs.
•Trytorunwiresinpairsorbunches.Forexample,
runthebattery'spositiveandnegativewirestogether,
andthemotor'spositiveandnegativewirestogether .
Bindwirestogetherandxthemtothechassis.
•Donotroutethecables(includingthemotorcable)
nearthemotorcase,wherepossible.
•Makesurethatallvehiclesub-frames,particularlythe
motorsandcontrollercase,areelectricallyconnected.
•Donotusethevehicleframeastheearthreturn.Any
electricallow-resistanceconnectiontotheframeisa
safetyriskandisnotallowedbyinternationalsafety
standards.
•Tominimizeelectromagneticemissionsbythemotor
brushes,itmaybenecessarytotcapacitorsbetween
thebrushholdersandthemotorcase.Makesure
thattheleadsarekeptasshortaspossible.Asuitable
capacitoris4n7,2kVCeramic.
•Forbestelectricalperformance,thewiresizemust
beaslargeaspossible,butnolargerthanwhatthe
crimpintheconnectorcanwithstand.Alwaysusethe
correcttoolforcrimping.
•Recommendedminimumwiresizesareshowninthe
wiringsections.
•Forlow-currentsignals,donotusewiresizessmaller
than0.5mm
2
/20AWG,becausesmallerwiresare
physicallynotstrongenoughforthisapplication.
•Thetypeofcableusedmustbeappropriateforthe
mechanicalandenvironmentalabuseitislikelyto
encounter .
•Donotusedamagedorabusedcables.Adamaged
cablecanpotentiallyproducelocalizedheat,sparksor
arcing,andassuchitcancauseare.
•Protectallcablesagainstpossiblecontactwith
ammablematerial.
•Ifanextensionloomistted,mountitwiththe
femaleconnectorfacinghorizontalordownwards,and
protectitfromdirectsplashing.Iftheextensionloom
istobeusedforfrequentdisconnection,mountthe
femaleconnectorsothatitfacesdownwards.
61605129-G