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andMaintenance
Ref.HB.1103
Drawings3
Generaldescription4
Externalcommands5
Rearofrackconnections6
Specification7
OperationandAdjustment8
TransducerInstallation10
Maintenance12
RoutineMaintenance12
BreakdownMaintenance12
Spares12
WARRANTYPOLICY13
Drawings
IndividualDrawingandFrontPanelView.....................IS.2829/1
FrontPanelControlFunctions.................................SK.5170B
SignalConditioningBoardLayout...........................EA.3078C
Typicalsystemloopdiagram……………………………SK
Generaldescription
This3uhigh(128.4mm)by6HPwide(30.14)'
slimline'
moduleispoweredby110/240VACor24Vdcobtainedviaitsplug-inedgeconnectorfromtherackinwhichitislocated.Thepowersupplycircuitwithinthemoduleispre-setbysolderedlinkstothespecifiedinputvoltageandproducesthestabiliseddcsuppliesrequiredwithinthemoduleandfortheexternaltransducersassociatedwithit.
ThemoduleiscapableofacceptingPZA4transducersandprovidingthetransducerexcitationoutput.Factorysettingspermitvariationsoncurrentandvoltagesignaloutputs.Adjustablelatchingornon-latchingalarmsmayoperateonthevibrationtermwitheithernormallyopenornormallyclosedcontactoutputs.Allthesesignaloutputsarecontinuouslyavailableviathepanelterminalblocksattherearoftherack.
Buttonsonthefrontpanelenablesthemoduletobeconnectedwithintherackingsystemtoamonitormodulelocatedinthesamerackorinanothersuitably-interconnectedrack.Asingledisplayonthemonitor,inconjunctionwiththefrontpanelbuttonsonthesignalconditioningmodule,canreadthreeoutputsinturnfromanyonemoduleinthesystematanyonetime.A‘SEL’buttonandyellowLEDindicatoronthesignal-conditioningmoduledeterminesandindicatesrespectivelywhichmoduleisconnectedtothemonitor.
`Thesignalsavailableforroutingtothemonitorareavibrationsignaltogetherwithalarm1and2set-pointsassociatedwiththatmodule.
Anydecimalpointrequiredbythemonitordisplayispre-selectedwithinthesignal-conditioningmodulesothatdifferentmoduletypesrequiringotherdecimalpointlocationsmaysharethesamedisplay.
Theintegrityofthesignalconditioningmoduleisselfmonitoredbyagreen‘OK’LEDonthefrontpanelwhichindicatesPSU(powersupplieshealthy)andTXD(transducerhealthy).RedLEDsindicateanalarmsituationat"
vibrationhigh"
and"
vibrationveryhigh"
alarmsetlevels.Latchedalarmswithinthemodulemayberesetbymeansofa‘R/S’buttononthefrontpanel.
Externalcommands
Facilitiesexistwithinthemoduleforresettinglatchedalarmsbyexternalcommand,byaremoteswitchconnectedtotherackterminalblocks.Thisfunctionbyexternalcommandis:
-
a)CALibrate.Thisdisconnectstheconditionedtransducersignalwithinthemoduleandconnectsinsteadacalibrationsignal.Allcompatiblemoduleswithintheracksystemwillrespondtothiscommandandalltheirsignaloutputswillbeproportionaltothepredeterminedcalibrationsignallevel.Ifthislatterlevelisaboveanyalarmsetpoints,thenthealarmwilloperate.
b)RESET.Thiswillresetalllatchedalarmsthroughouttheracksystem(unliketheresetswitchonanindividualmodulethatoperatesthatmoduleonly).
NOTES
1.SpecificversionsoftheMO.9602(i.e.versionswhichhavebeeninternallyconfiguredtoaprecisespecification)carrysuffixlettersandnumbersonthebasictypenumberwhichidentifytheversion.Anindividualspecificationdefinesthevariousinput/outputparametersforeachversion.
2.Therackingsystemintendedtoacceptthisrangeofmodulesis:
TypeRA.8113-1C(Standardrack,19”x3u)
TypeRA.8113-2C(Halfrack,10½
”x3u)
(Seeseparatehandbookfordetailsofrack)
3.ThemonitormoduleforusewiththissystemistypeMO.8699coveredbyaseparatehandbook.
Rearofrackconnections
TerminalblocksCH1toCH12inclusive
Term’NoEdgeconn’Function
110TransducersignalinputHi
211TransducersignalinputLo
312(0V)Screen
413TransducersupplyHi(12or24V)
514TransducersupplyLo(0V)
615(0V)Screen
716VoltageoutputHi(acordc)
817VoltageoutputLo(0V)
918VoltageorcurrentoutputHi
1019VoltageorcurrentoutputLo
1120Notused
1221Notused
1322Bufferedinputsignal(ac)Hi
1423Bufferedinputsignal(ac)Lo
1527A1vibrationalarmcontact
1628A1vibrationalarmcontact
1729A2vibrationalarmcontact
1830A2vibrationalarmcontact
1931A3integrityalarmcontact
2032A3integrityalarmcontact
Auxiliaryterminalblocks
Term’NoEdgeconn’Function
14Selectbus
23,12&
150V
35Cal.Select
43,12&
56Resetbus
63,12&
77Att.Select
83,12&
98Cal.Signal
103,12&
119Displaybus
123,12&
1324Decimalpoint1
1425Decimalpoint2
1526Decimalpoint3
163,12&
Specification
Moduleformat:
3uhighx6HPplug-intoKM6Slimline
systems.
Powerinput:
110/240Vacor24Vdc(factoryset).
Transducerinput:
2-wireor3-wiretype(seeISsheet).
Offsetsavailable:
+35dB)
(Baselevel)+30dB)
+25dB)switchselectableon
+20dB)moduleboard
+15dB)
+10dB)seeSW1on
+5dB)IS.2829,sht2and
0dB)EA.3078C
-5dB)
Decimalpointlocation:
DP.1,e.g.20.0dB
Outputsignals(a):
Scaledvoltage
(b):
Scaledoutput(currentorvoltage).
Max.loopresistance300ohmsoncurrent.
(c):
FrontpanelbufferedAC
accelerationsignal.
AlarmssettoA1:
Highvibrationrelay,
Voltagefreecontacts
A2:
Highvibrationrelay,
Voltagefreecontacts,
A3:
FaultrelayTransducer&
PSUintegrity.
Voltagefreecontacts.
Thealarmconfigurationislinkselectableonthemoduleboard,seeLK9-18onIS.2829,sht2andEA.3078C.
Calibrationlevel:
internallypre-settoasetlevel.
OperationandAdjustment
Themoduleisfactoryadjustedtoprovidecorrectdisplayandsignaloutputs.Theonlyadjustmentsaccessiblefortheoperatoratthefrontpanelaremulti-turnpotentiometerstosetupthealarmlevels.
AssumingthatthemoduleislocatedwithinatypeRA.8113rackwhichalsocontainsamonitormoduletypeMO.9699andthatexternalconnectionshavebeenmadeaspertherelevantdrawings,thenthefollowingproceduremaybefollowed.Withpowerapplied:
1.CheckthatthegreenLEDforPSUandTXDisilluminated.
2.IfanyoftheredLEDalarmlampsareon,thendepressandreleasetheRESET(R/S)switchonthefrontpaneloftherequiredmodule.
3.SelecttherequiredmodulefordisplayonthemonitormodulebydepressingandreleasingtheSELbuttonatthetopoffrontpanelandnotethattheassociatedyellowLEDilluminatesandthatthecounterpartonothermodulesisoff.Thevibrationsignalforthatmodulewillnowbedisplayedatthemonitor.
4.IftheA1alarmleveldisplayisrequiredatthemonitorthendepressandholddowntheA1buttononthefrontpanel.Thislevelcanthenbeadjusted,whileholdingdowntheA1button,totherequiredlevelusingtheassociatedmultiturnpotentiometer.Onreleaseofthebuttonthedisplaywillreturntothevibrationsignal.
5.AlarmA2canbeadjustedinthesamewayasA1,usingtheA2buttonandassociatedmultiturnpotentiometer.
Notethatforbothalarms,theassociatedLEDwilllightimmediatelywhenthesignalexceedsthesetlevelbuttherelevantrelaywillnotchangestateuntilafterasmalldelay.
6.TheCalibratefacilitymaybecheckedbyoperationofanexternalcommandbycontactclosureviatheAUX(illary)terminalblocksattherearoftherack(seerackhandbookfordetails).Ontheselectedmodulethepre-determinedcalibrationsignallevelwillbedisplayedatthemonitormodule.Ifeitherofthealarmsetlevelsisadjustedbelowthecalibrationsignallevel,thentheassociatedLEDwilllightandthealarmwilloperate.Whenthecalibratefunctionisoperatedthe‘CalibrateInitiated’yellowLEDwillbelitonthemonitormodule.
7.TheMonitorBNCatthebottomofthefrontpanelofthemodulegivesanoutputequaltothetransducerinput.
8.TheReset(R/S)switchonthefrontpanelofthesignalconditioningmodulewillnotonlyresetanylatchedalarms(A1orA2)withinthemodulebutwillalsoinhibitalarmrelayoperationwhiletheswitchishelddepressed.IftheincomingsignallevelisabovethealarmsetlevelthefrontpanelLEDwillremainlitalthoughtheassociatedrelaywillreset(orbeinhibited)whilsttheresetbuttonisdepressed.
9.TheresetcommandcanalsobegivenbycontactclosureviatheAUX(illary)terminalblocksattherearoftherack(seerackhandbookfordetails)whenallA1andA2alarmsthroughoutthesystemwillbereset(orinhibited).Thisfunctioncouldbeusedtopreventalarmsduringthecalibrateoperation.TheA3alarm(PSUintegrity)cannotbeinhibited.Whentheexternalresetisoperatedthe‘ResetInitiated’yellowLEDwillbelitonthemonitormodule.
TransducerInstallation
Toachievethebestresultsitisimportantthatthetransducermeasuringpointisintheloadzoneofthebearing.Theloadzoneisdefinedastheloadcarryingpartofthebearinghousing.Itisnormallydeterminedbytheweightofthesupportedmachinepart(i.e.theloadisnormallyonthelowe