epro MMS 6000 - Signal inputs; Voltage input characteristical value El; Signal input KEY; Limit supervision

 MMS6110Directionforuse 
 Functiondescription  Page33
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duringtheconfiguration.Thusalevelof0Vcorrespondstothelowerlimitofthesensor's
operatingrange(e.g.-4V/0,5mmforPR6423andCON010)and+10Vtotheupperrange
limit(-20V/2,5mm)–refertosection2.3.2propertypageChannel.
4.3 Signalinputs
4.3.1 VoltageinputcharacteristicalvalueEI
ThevoltageinputsEI1(b14)undEI2(b16)for0...+10Vlevelofcharacteristicalvalues
servethecombinationwithvoltageoutputsEOofidenticalchannels.Thisfeatureisnoteffec-
tivefortheMMS6110shaftvibrationmonitor.
4.3.2 SignalinputKEY
Thekeyinputofthemonitorpermitsconnectionofthekeyreferencepulse.Itispossibleto
usekeypulsesfromeitheranKeyMonitorMMS6310orSpeedMonitorMMS6312ordi-
rectlyfromaspeedsensorsuchasthePR9376-providedtheirpulseshaveamplitudesofat
least13V.Prerequisiteisasupplyvoltageof24VforthePR9376speedsensor.
Keypulsesarerequiredtoprocessthemeasurementsspeedcontrolledandtoperformthe
orderanalysisfunctions.
4.4 Limitsupervision
4.4.1 Alarmchannelsandlimitvalues
Twoalarmchannels,eachofthemwithaprealarm(ALERT)andamainalarm(DANGER)
checkthecharacteristicalvaluesonlimitexceedings.Activationofthelimitvaluesuper-vision
andsettingoflimitvaluesismadeduringtheconfiguration.
Inthedualchannelmodethecharacteristicalvaluesaresupervisedbytherelevantalarm
channel.Thelimitvaluesforprealarm(Alert)andmainalarm(Danger)maybeadjusted
separately.
WithoperatingmodesSmaxandSppmaxresp.max(X,Y)thecharacteristicalvalue,calcu-
latedfrombothchannels,issupervisedonlyone"Alert"andone"Danger"limit.
Theswitchingcharacteristicsofthelimitingswitchesisincreasing;i.e.assoonasthecharac-
teristicalvalueexceedsthelimitvalue,thealarmoutputwillbetriggered.Ahysteresisselect-
ablefrom1...10%offsd.(onlyeffectiveatdecreasingvalues)preventsanundefinedswitch-
ingofthealarmoutputsincaseoflittlechangesofthemeasuringvaluearoundthelimit
value.
4.4.2 LimitvaluemultplierandbinaryinputFactorX
InmenuEdit>Basisfunctionlimitmultiplieroncanbeactivatedandamulti-
plicationfactorentered.Theincreaseofthelimitvalueswillgeteffective,notbeforeinputd18
"factorx"issettoLOW.Withinput"factorx"openorHIGH,thisfunctionisinactive.Upscal-
ingoflimitvaluesiseffectiveonpreandmainalarmsandinthedualchannelmodeonthe
alarmlevelsofbothmeasuringchannels.