OMI-2T optical machine interface - resources.renishaw.com
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Data sheet H-5439-8200-01-A OMI-2T optical machine interface www.renishaw.com/omi-2t The OMI-2T is a combined optical transmitter/ receiver and machine interface, designed for mounting within the machine’s working envelope. The OMI-2T operates using a ‘Modulated’ optical transmission mode and is compatible with machine probes that also operate in ‘Modulated’ mode. Features • Twin probe system The OMI-2T is capable of operating two compatible probes sequentially. • Modulated transmission Effects of light interference are reduced which in some circumstances could cause false trigger signals. • Visible probe diagnostic LEDs LEDs provide a visual indication of system status and identifies the active probe. • Mounting bracket The optional mounting bracket allows directional setting. • Toughened glass window • Fully sealed to IPX8 • User configurable outputs Probe status 1 SSR NO/NC, pulsed/level. Probe status 2 SSR NO/NC. pulsed/level. Error SSR NO/NC. Low battery SSR NO/NC. • Range selection Start (Tx) 50% or 100%. Reception (Rx) 50% or 100%. Both factory set at 100%. • Start inputs Level machine inputs define the active probe. When the respective input is active, the probe is switched on. If both inputs are active the system will default to error. Operating features Switch on/off method The OMI-2T operates using only optical on/optical off as the switch on/off method. Optical on/optical off is available with all Renishaw’s OMP range of spindle probes and the OTS tool setter probe. Time out, spin on/off and shank on/off options are not compatible with the OMI-2T. Start up times In normal operation the start up time of either probe (as reported by the OMI-2T error signal) is 410 ms maximum. The turn off time is 0 seconds. Normal operation refers to when the on/off status of the probes is in synchronisation with the receiver on/off status. The active probe should correspond to the respective active system LED. When changing from Probe 1 to Probe 2, or Probe 2 to Probe 1, allow 1 second between the cancelling of one machine start input and raising of the other start input. Synchronisation recovery Under abnormal operating situations the system may lose synchronisation between the receiver and probes. An internal synchronisation recovery will be initiated when the next machine input is activated. continued on next page :
Transcript of OMI-2T optical machine interface - resources.renishaw.com
Data sheetH-5439-8200-01-A
OMI-2T optical machine interface
www.renishaw.com/omi-2t
The OMI-2T is a combined optical transmitter/receiver and machine interface, designed for mounting within the machine’s working envelope. The OMI-2T operates using a ‘Modulated’ optical transmission mode and is compatible with machine
probes that also operate in ‘Modulated’ mode.
Features
• Twin probe system
TheOMI-2Tiscapableofoperatingtwocompatibleprobes
sequentially.
• Modulated transmission
Effectsoflightinterferencearereducedwhichinsome
circumstancescouldcausefalsetriggersignals.
• Visible probe diagnostic LEDs
LEDsprovideavisualindicationofsystemstatus
andidentifiestheactiveprobe.
• Mounting bracket
Theoptionalmountingbracketallowsdirectionalsetting.
• Toughened glass window
• Fully sealed to IPX8
• User configurable outputs
Probestatus1SSR NO/NC,pulsed/level.
Probestatus2SSR NO/NC.pulsed/level.
ErrorSSR NO/NC.
LowbatterySSR NO/NC.
• Range selection
Start(Tx) 50%or100%.
Reception(Rx)50%or100%.
Bothfactorysetat100%.
• Start inputs
Levelmachineinputsdefinetheactiveprobe.Whenthe
respectiveinputisactive,theprobeisswitchedon.
Ifbothinputsareactivethesystemwilldefaulttoerror.
Operating features
Switch on/off method
TheOMI-2Toperatesusingonlyopticalon/opticaloffasthe
switchon/offmethod.
Opticalon/opticaloffisavailablewithallRenishaw’sOMP
rangeofspindleprobesandtheOTStoolsetterprobe.
Timeout,spinon/offandshankon/offoptionsarenot
compatiblewiththeOMI-2T.
Start up times
Innormaloperationthestartuptimeofeitherprobe(as
reportedbytheOMI-2Terrorsignal)is410msmaximum.
Theturnofftimeis0seconds.
Normaloperationreferstowhentheon/offstatusofthe
probesisinsynchronisationwiththereceiveron/offstatus.
Theactiveprobeshouldcorrespondtotherespectiveactive
systemLED.
WhenchangingfromProbe1toProbe2,orProbe2to
Probe1,allow1secondbetweenthecancellingofone
machinestartinputandraisingoftheotherstartinput.
Synchronisation recovery
Underabnormaloperatingsituationsthesystemmaylose
synchronisationbetweenthereceiverandprobes.Aninternal
synchronisationrecoverywillbeinitiatedwhenthenext
machineinputisactivated.
continuedonnextpage:
Data sheetOMI-2Topticalmachineinterface
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The OMI-2T is compatible with machine probes operating in ‘Modulated’ mode
Inspection probeOMP40-2/OMP60/OMP400
(OMP40-2shown)
Workpiece
OMI-2T opticaltransmitter/receiver
andmachineinterface
CNCmachinecontrol
OTS tool setter probe
Mounting bracket(optional)
Operating features (continued)
Synchronisation recovery
Themaximumtimeforsystemrecoveryfromanabnormal
operatingsituationis3.5seconds.
Suchatimedelaycouldcauseamachinealarmifcontrollers
requirereadysignalswithinatimeoflessthan3.5seconds.
OMI-2T optimum position setting
ToassistfindingtheoptimumpositionfortheOMI-2Tduring
systeminstallation,signalconditionreceivedisindicatedon
thered/yellow/greensignalconditionLED.
TheOMI-2Tmayhavetobeshieldedfromdirectlightsources
TheLEDindicationofablue,yelloworvioleterrorcondition
resultingfromthelossofagoodprobesignalwillpersistuntil
theactivesysteminput(Probe1orProbe2isdeactivated.
WARNING:
Iftwosystemsareoperatingincloseproximity,takecare
toensurethatsignalstransmittedfromtheprobeonone
machine,arenotreceivedbytheOMI-2Tontheother
machine,andviceversa.
OMI-2T status LEDs
AvisualindicationofsystemstatusisprovidedbyLEDs.
1. Start signal LED (yellow) FlashesoncewhenamachineinputSTARTsignalis activated.
2. Low battery LED (red) Red - Batterylow Off - BatteryOK
3. Probe status LED (green, red) ThisLEDislitwhentheOMI-2Tispowered. Green- Probeseated. Red - Probetriggeredorunknownstatus.
4. Error LED Indicatesatransmissionerrorcondition.
Red - Noprobetransmittingorprobeoutofrange. Blue -Amodulatedsignalfromasecondprobehas
beenreceived. Yellow- Interferenceoraweaksignalhasbeen
received. Violet - Interferenceoraweaksignalhasdelayed
thetriggerinstant.
5. Signal condition LED Red - Nosignal. Yellow -Weaksignal Green- Goodsignal.
6. Active system LEDs TheLEDislittoshowwhichmachineinput(Probe1orProbe2)isactive,andunlitwhenthesysteminputsareinactive.
Opticalcentreline
Mounting bracket (optional)
dimensionsmm(in)
3holesØ6.4(0.25)
25(0.98)
25(0.98) 19
(0.
75)
38(
1.50
)
45
(1.7
7)25
(0
.98)
30
(1.1
8)
3gripprotrusions
100.5(3.95)
90(3.54)
2.0
(0.0
8)
2.0(0.08)
3pairsofholesØ5.3(0.20)permitOMI-2Tmountinginalternativeorientation
45(1.77) 45°
NOTE: Maximumlengthofthespecifiedcablemustnotexceed25m(82ft).
• InstalltheOMI-2Twithcableexitingfromlowerside
forgoodcoolantrunoff.
• CableentrytotheOMI-2Tissealedwithagland.
• Cableprotectionagainstphysicaldamageshouldbe
providedbyflexibleconduit.
• Routethecableawayfrompotentialsourcesof
electromagneticinterference.
• Maintainthescreenthroughcablejoints.
Cable specification
Ø7.5mm(0.29in),13corescreenedcable,each
core18x0.1mm.
Standard cable variants
TheOMI-2Tstandardpolyurethanecablesare
8m(26ft)and15m(49ft)long.
Cable installation
3B3546
Dimensions
40(1.57)
84(3.30)
40(1.57)
40(
1.57
)
46.7(1.84)
45(
1.77
)
63(
2.48
)
16(0.63)
dimensionsmm(in)
Renishaw plc
NewMills,Wotton-under-Edge,Gloucestershire,GL128JRUnitedKingdom
T +44(0)1453524524 F +44(0)1453524901E [email protected]
www.renishaw.com
For worldwide contact details, please visit our main web site at www.renishaw.com/contact
*H-5439-8200-01*©2007Renishawplc.Allrightsreserved. Renishawreservestherighttochangespecificationswithoutnotice Issued11.07 Partno.H-5439-8200-01-A
Parts list –pleasequotethepartnumberwhenorderingequipment
Type Part no. Description
OMI-2Tkit A-5439-0049 OMI-2Twith8m(26ft)cableandtoolkit.
OMI-2Tkit A-5439-0050 OMI-2Twith15m(49ft)cableandtoolkit.
Mountingbracket A-2033-0830 MountingbracketforOMI-2T.
Conduitkit A-4113-0306 Conduitkitwith1m(3.28ft)ofpolyurethaneconduitandbulkheadconnector(M16thread).
Windowreplacementkit
A-5191-0019 Comprising:windowassemblywith‘O’ring,3xstainlesssteelM3x14mmlongscrews,3xstainlesssteelM3x5mmlongscrewsand2.5mmhexagonwrench.
Toolkit A-5191-0300 Comprising:2.5mmhexagonwrench,4mmhexagonwrench,14xferrules,2xM5screws,2xM5washersand2xM5nuts.
Publications.Thesecanbedownloadedfromourwebsiteatwww.renishaw.com
OMI-2T A-5439-8500 Installationanduser’sguideOMI-2T
OMP40-2 H-4071-8200 DatasheetOMP40-2
OMP400 H-2000-2324 DatasheetOMP400
OMP60 H-2000-2131 DatasheetOMP60
OTS H-5401-8200 DatasheetOTS
Wiring diagram (withoutputgroupings
shown)
12Vto30V
0V
Turquoise
Turquoise/black
Blue
Blue/black
Violet
Violet/black
Screen
OMI-2T
Pink
Red
Machineground(starpoint)
Powersupply(12Vdcto30Vdc)
Lowbattery(SSR)
Probestatus1(SSR)
Probestatus2(SSR)
Machinestartinput(Probe1)
Error(SSR)
White
Green
Green/black
Machinestartcommon
Machinestartinput(Probe2)
Black
Green/yellow
Brown
RENISHAWHASMADECONSIDERABLEEFFORTSTOENSURETHECONTENTOFTHISDOCUMENTISCORRECTATTHEDATEOFPUBLICATIONBUTMAKESNOWARRANTIESORREPRESENTATIONSREGARDINGTHECONTENT.RENISHAWEXCLUDESLIABILITY,HOWSOEVERARISING,FORANYINACCURACIESINTHISDOCUMENT.
