Safety Interlock Switches Owner's manual

    P/N50159Rev.F   3
Banner Engineering Corp. • Minneapolis, MN U.S.A
www.bannerengineering.com • Tel: [phone]
Machine Safety Switch: SI-LM40 Series Limit Switch Style
Round (5 mm) holes
for permanent
installation (2X)
Slotted holes for initial
alignment only (2X)
Remove to access
wiring chamber (2X)
Mechanical Installation
Allmountinghardwareissuppliedbytheuser.Thefastenersmustbeofsufficient
strengthtoguardagainstincidentalbreakage.Useofpermanentfastenersor
lockinghardwareisrecommendedtopreventlooseningordisplacementofthe
actuatorandswitchbody.
Note:TheslottedholesintheswitchbodymustONLYbeusedforalignment
duringinstallation(seeFigure1).Theround5mmholes(only)mustbeusedfor
permanentmountingtopreventlooseningordisplacementoftheactuatorandthe
switchbody.OnlyM5(#10)screws(customersupplied),shouldbeused.
Therearefourholesonamountingpatternof30x60mm.Theactuatorhasfour
M4tappedmountingholesona26mm(1.02")squarepattern(seedimensionson
page7).
Positiontheswitch,withitsactuatorfullyengaged,inthemountinglocationand
markthemountingholes.Drilltherequiredholesandfastentheswitchbodyand
theactuatorinplace.Afterthemountinghardwareissecure,checktheactuator/
switchengagementformisalignmentandbinding.
Theactuatorisspring-loadedtoallowpositivepressuretobeappliedwhenthe
guardisclosed.However,theswitchmustneverserveasthemechanicalendstop
foraguarddoororgate.Positivepressurefortheactuatorengagementisdesirable,
becauseonly1mm(0.04")ofactuatortravelfromthepointoffullengagementis
requiredtoopenthesafetycontact.
Important:
1. Asafetyswitchmustbeinstalledinamannerwhichdiscourages
tamperingordefeat.Mounteachswitchtopreventbypassingofthe
switchingfunctionattheterminalchamber.
2. Aswitchanditsactuatormustneverbeusedasamechanicalstop.
3. Ensureproperplacementofgasketwhenrotatinghead.Failuretodoso
willreducetheenvironmentalrating.
WARNING ... Itmustnotbepossible
forpersonneltoreachanyhazard
pointthroughanopenedguard(or
anyopening)beforehazardousmachinemotionhas
completelystopped.PleasereferenceOSHACFR
1910.217andANSIB11standards(seepage2)for
informationondeterminingsafetydistancesandsafe
openingsizesforyourguardingdevices.