Ifabuttonoperationis
required,releasethekey
lock.
"5-1KeyLock"( page7)
Thresholdvalue(SP1)
Detectedvalue
Hysteresiswidth
Judgmentoutput
●Operatingpoint
○Returnpoint
■HysteresisMode
Hysteresis
6-12
Minuteleveldifferencecanbejudgedbycontrollingthehysteresis
widthminutelyaccordingtotheobject.
However,notethatwhenthedetectedvalueisfluctuatingduetothe
movementoftheobjectorthesmallintensityofthereflectedlight,the
outputmaybecomeunstable.
ABTFunction(Automatic-Background-Tracking)
6-11
TheABTfunctionisenabledonlywhenbackgroundreferenceteaching
(sensitive)isexecuted.
Thisfunctioncorrectsvariationofthedetectedvaluewhenbackground
isdetected(coincidencebetweendistanceandintensity)andkeepthe
detectedvalueat100.
Thenumberoftimesofmaintenanceisreducedbyautomatically
correctingthevariationofthedetectedvalueduetostainonthe
sensor'sreceivingsurfaceorthebackgroundobject.
Thecorrectiontimecanbeselectedfromfouroptions(OFF/0.3sec/
1sec/3min).
(Precautions)
Iftheobjectmovesveryslowly,correctionkeepsupwiththemovement
oftheobject,sotheobjectcannotbedetectedcorrectly.
Inthiscase,retardthecorrectiontimeofthe[ABTfunction]orsetOFF
thefunction
Hysteresismode
Auto
User
Description
Theoptimumhysteresiswidthisautomaticallysetaccordingtothethreshold.
Usercansetanyhysteresiswidth.
■HysteresisWidth
ThepointatwhichtheoutputturnsfromOFFtoONiscalledtheoperatingpointand
thepointatwhichitturnsfromONtoOFFiscalledthereturnpoint.
Thedistancebetweentheoperatingandreturnpointsiscalledhysteresiswidth.
Forthissensor,thresholdvalueisequaltooperatingpoint,sothe
Thedefinitionofhysteresiswidthforeachoutputmodeisshownonthefigurebelow.
●Distance+intensitymode[Dist+Int]
Inthedistance+intensitymode,usersetupofhysteresiswidthisnotallowed.A
fixedvalueof4isalwaysset.
●SinglePointMode[Single]
●WindowBGSmode[WindowBGS]
●WindowFGSmode[WindowFGS]
ON
OFF
Near
Far
Output*1
Farsidethreshold
value(SP1)
Nearsidethreshold
value(SP2)
Farsidethreshold
value(SP1)
Nearsidethreshold
value(SP2)
Detectedvalue
Hysteresiswidth
ON
OFF
Near
Far
Output*1
Hysteresiswidth
Hysteresiswidth
Hysteresiswidth
Detectedvalue
ON
OFF
Near
Far
*1.ThisisagraphwhentheoutputlogicisN.O.ItisinvertedinthecaseofN.C.
*1.ThisisagraphwhentheoutputlogicisN.O.ItisinvertedinthecaseofN.C.
*1.ThisisagraphwhentheoutputlogicisN.O.ItisinvertedinthecaseofN.C.
Troubleshooting
7
■ErrorDisplay
Errorname/
display
PossiblecausesErrordetails
Indicator
Laserfailureerror
Systemerror
Loadshort-circuiterror
Data(EEPROM)error
Orange
Green
Quickflashing
(at0.2sintervals)
OFF
Quickflashing
(at0.2sintervals)
OFF
Thelaserdiode
mighthave
been
deteriorated.
Anerror
occurredinthe
system.
Anerroroccurred
onthememory
insidethesensor.
Theoutputline
isshort-circuit-
ed.
Restartthe
sensor(turnthe
poweroffand
onagain).
Iftheerror
remains,
replacethe
sensor.
Initializethesettings
bypressingand
holdingtheUP
buttonfor3s.The
sensorisoutof
orderiftheerroris
stillnot
fixed.Replacethe
sensor.
Checkthe
wiringand
connecting.
■StateDisplay
Statename/
display
ActionandcorrectionPossiblecauses
Insufficientintensity
Keylock
LaseremissionOFF
Thereceivedlight
intensityfromtheobject
isnotsufficientorthe
objectisoutofthe
detectiondistancerange.
Retardtheresponsetimeor
adjustsothatthedistance
betweenthesensormain
unitandtheobjectcanbe
detectedbythesensor.
Thekeylockfunction
enabled.
Pin2terminal(white)
mighthavebeen
short-circuited
Checkthewiringand
externalinputsetting.
Orangeandgreen
indicatorsshowquick
flashingalternately
(at0.2sintervals)
11