Lenovo x3550 M5 - Page 211

CAUTION:
Thisproductdoesnotprovideapower-controlbutton.Turningoffbladesorremovingpowermodules
andI/Omodulesdoesnotturnoffelectricalcurrenttotheproduct.Theproductalsomighthavemore
thanonepowercord.Toremoveallelectricalcurrentfromtheproduct,makesurethatallpower
cordsaredisconnectedfromthepowersource.
Statement34
CAUTION:
Toreducetheriskofelectricshockorenergyhazards:
•Thisequipmentmustbeinstalledbytrainedservicepersonnelinarestricted-accesslocation,
asdefinedbytheNECandIEC60950-1,FirstEdition,TheStandardforSafetyofInformation
TechnologyEquipment.
•Connecttheequipmenttoaproperlygroundedsafetyextralowvoltage(SELV)source.ASELV
sourceisasecondarycircuitthatisdesignedsothatnormalandsinglefaultconditionsdonot
causethevoltagestoexceedasafelevel(60Vdirectcurrent).
•Incorporateareadilyavailableapprovedandrateddisconnectdeviceinthefieldwiring.
•Seethespecificationsintheproductdocumentationfortherequiredcircuit-breakerratingfor
branchcircuitovercurrentprotection.
•Usecopperwireconductorsonly.Seethespecificationsintheproductdocumentationforthe
requiredwiresize.
•Seethespecificationsintheproductdocumentationfortherequiredtorquevaluesforthe
wiring-terminalscrews.
Important:Beforeyouusetheproduct,besuretoreadthemultilingualsafetyinstructionsat:
https://support.lenovo.com/documents/LNVO-DOCS
Toremoveahot-swapdcpowersupply,completethefollowingsteps:
Step1.Readthesafetyinformationthatbeginsonpage“Safety”onpagevand“Installationguidelines”on
page116.
Step2.Ifonlyonepowersupplyisinstalled,turnofftheserverandperipheraldevicesanddisconnect
allpowercords.
Chapter5.Removingandreplacingcomponents197