
PSENsl1.0p3.1/4.1/4.2
OperatingManualPSENsl1.0p3.1/4.1/4.2
1003389EN02 10
}[4]inthetimingdiagram
– Actuatoriswithintheresponserangeand
– ThereisalowsignalatS31.
ThesignaloutputY32switchestolowif
}Theactuatorleavestheresponserange(safetygateopen)(see[3]inthetimingdia
gram)or
}TheholdingforcecouldnotbeachievedaftertLock=600ms(see[2]inthetimingdia
gram).Inthiscase,thesignaloutputcanonlyswitchbacktohighif
– ThereisalowsignalatinputS31foratleast500msand
– ahighsignalistransmittedafterwards.
Safety gate
S31
Guard locking
Y32
closed
open
active
not active
high
low [3]high
low
tlock
[1]tlock
[2][4]
FeasibilitymonitoringforsafetyinputsS11andS21
}Ifonesafetyinputswitchesfromhightolow,whiletheothersafetyinputremainshigh,
anunequalstatusisdisplayed.
}Ifthissafetyinputswitchesbackfromlowtohigh,whiletheothersafetyinputremains
high,afeasibilityerrorisdisplayedandapartialoperationlockistriggered.TheOSSDs
areswitchedoffduringthepartialoperationlock.
Aswitchtoahighsignalwillonlyleadtonormalswitchoperationifbothinputshadalow
signal.Fromthismomenton,theswitchtohighmayoccur(partialoperationlockseeError
display[ 23]).
Magneticguardlockingdeviceandmagnetmonitoring
}ThelockingmagnetisswitchedonifS31(controlcommandformagneticguardlocking)
ishighandtheactuatorisdetected(safetygateclosed).
}Theholdingforceofthelockingmagnetistestedonpowerup.Ifthemagnet'sholding
forceisnotachievedaftermax.600ms,therewillbenoswitchfromlowtohigh.The
holdingforcewillbetestedafurther7times.
Thesetestshavenoinfluenceonthesignaloutput.Ifthetestissuccessfulduringany
oftheseattempts,thegateislocked.
}AfterS31switchestolow,waitatleast500msuntilS31isswitchedbacktohigh.Also
notethemax.switchingfrequency(seeTechnicaldetails:Systemwithnormal
actuator[ 26],Systemwithfreemovingactuator[ 29],underelectricaldata).
}Forphysicalreasons,aremanence(residualmagnetism)remainsafterthelocking
magnetisswitchedoff;thisisdissipatedthefirsttimethesensorandactuatoraresep
arated.