OCEM IRM User manual

Operation and Maintenance Manual
ocem
EN
06ea44df-4930-4943-9da8-a9181f2c00fe
Insulation
Resistance
Measurement
INSULATION RESISTANCE
MEASUREMENT
SERIES CIRCUITS 6.6A
UP TO 30 KVA
FIELDBUS CONNECTION
LONWORKS
MANAGEMENT SOFTWARE
SERVER AND CLIENT
UT-MT-0930_1.3_22-04-2021 (EN)

Contact us
OCEM AT 1.1 [phone] 1.2 [email protected]
UT-MT-0930_1.3_22-04-2021 (EN) | | These specications may be subject to change.
© Copyright 2020 Energy Technology S.r.L. (Italy) | All rights reserved.
Energy Technology S.r.L.,and any other name/brand associated with products Energy Technology S.r.L.mentioned or indicated in this document,
are trademarks or registered by Energy Technology S.r.L.. The rights of third parties on each registered trade mark mentioned in this document
are the property of their respective owners.
The copyrights of this manual are the property of Energy Technology S.r.L..The instructions, drawings,tables and other contained in this manual
are of a reserved technical nature and cannot be reproduced and/or disclosed, whether in full or in part, without prior authorization of the
Manufacturer. The reproduction of this manual is allowed for the sole purpose of making one backup copy. #Manu#reserves, under the law,
the property of this manual, by prohibiting the transfer to third parties and/or the unauthorised reproduction.
Editions
Release Date Notes
1.0 14/12/2020 First emission
1.1 03/02/2021 Content review
1.2 22/04/2021 Content review

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1 GENERAL INFORMATION
1.1 Package content 5
1.2 Manual reference guide 6
1.3 Safety instructions 6
1.4 Safety symbols 7
1.5 Denitionofoperator 7
1.6 Limited warranty 8
1.7 CE marking 9
1.8 Condentiality,industrialpropertyrights 9
1.9 Disposal 9
1.10 Articleidentication 9
2 DESCRIPTION OF THE DEVICE
2.1 Generalcharacteristics 11
2.2 Article number 13
3 INSTALLATION
3.1 Insulation measurement device 15
3.2 Installationofthedevice 16
3.3 IRMS remote control 20
3.4 Ethernetconnection 21
4 ADJUSTMENTS AND MAINTENANCE
4.1 Preliminary operations 23
4.2 Visualization current value (and voltage - optional) 24
4.3 Parameter management 25
4.4 Scheduledmaintenance 29
4.5 Spare parts 30

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GENERAL INFORMATION
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The IRM of Energy Technology S.r.L. is a measurement device designed for the monitoring of the insulation
resistanceonacircuitairportseries.Thedeviceisdesignedincompliancewith:
●IEC:61010‑1SafetyRequirementsforElectricalEquipmentforMeasurement,Control,andLaboratoryUse.
Themeasurementcanbeperformedonaseriescircuitpoweredbyaregulatorunitcompliantwith:
●IEC61822:Electricalinstallationsforlightingandsignallinginaerodromes‑Constantcurrentregulator
●FAAAC 150/5345‑10:L‑828 Constant current regulatorunit without monitoring; L‑829Constant current
regulatorunitwithmonitoring
●ICAO:Annex14,ManualofairportsPart5.
Immediatelycheckforvisibledamagesofthecontainingbox.Carefullyremovethedeviceandcheckforvisible
damages.Beforeproceedingreadallwarningsonthepackaging.
Store the device in its original packaging until the time of installation.
Pay attention not to damage the cables or the watertightness of the device.
The device described in this manual has been designed to be installed on series circuits,
powered by constant current regulators from 2,8 A to 6,6 A.
1 GENERAL INFORMATION
1.1 Package content

GENERAL INFORMATION
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1.2 Manual reference guide
Thisdocumentcontainsalltheinformationrelatedtotheequipmentanddescribestheprocedurestofollowduring
theinstallationoftheproductandduringordinarymaintenance.Thedocumentisindentedforalloperatorsthat
mustinterveneontheequipment.
Theprecautionsprovidedinthemanualarealwaysprecededbyasymbolasillustratedbelow:
Indicates the warnings, the notes, the suggestions and other points on which is intended to
draw the attention of the reader.
Indicates the operations to be carried out mandatorily or the informations which should be
carefully watched to avoid possible risks.
Indicates particular risks connected with the power supply. Are reported the operations to
be carried out mandatorily or the informations which should be carefully watched to avoid
possible risks.
Theseprecautionssafeguardthepersonalsecurityofeveryonewhoworksand/orarepresentinthebu󰀨erarea
oftheequipmentandoftherelativesupplycircuits.
The failure to comply with the instructions (in particular those preceded by danger, warning, caution
precautions) can cause serious injury or death.
1.3 Safety instructions
CAREFULLY READ THIS DOCUMENT.
The improper use of the equipment or the failure to comply all the precautions indicated
implies life danger and serious injury to persons and damages to things.
HAZARD OF ELECTRICAL SHOCK, EXPLOSION OR ELECTRIC ARC
Carefully read the enclosed documentation before installing or starting to use the equipment.
Do not install the equipment until the completion of all construction works required to carry
out the work.
DO NOT OPERATE ON POWERED CIRCUITS
Do not carry out any operation on powered circuits.
Beforeeveryaccess,inspectionorinterventionontheequipments,ensuretohaveswitchedo󰀨the
equipmentbyopeningthemainpowerswitchandbyremovingthesupplyfromtheunitbyopening
thepowerswitchatthebeginningoftheline.
The failure to comply all the precautions indicated implies life danger and serious injury to
persons.
RESIDUAL ENERGIES
Always wait for the discharging time (at least 5 min) before operating on the equipments.
Check the complete de-energization of the equipments before accessing the potentially active
parts. The failure to comply all the precautions indicated implies life danger and serious
injury to persons.
IN CASE OF MULFUNCTION OF THE EQUIPMENTS
Do not leave the devices who have expressed evidence of deterioration or of malfunction.
Disconnect the energy sources and proceed as soon as possible to repair/replacement of
devices.

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1.4 Safety symbols
Thesymbolsillustratedinthefollowingtableareusedintheuserandmaintenancemanualandonthedevice.
Thesesymbolsservetoindicatetheexistenceofanydangeroussituations,toindicateprovisionsandprohibitions
inrelationtothesituationsthatmayrepresentanhazardfortheoperatororindicatethebehaviourtoadoptto
minimizetheriskfortheoperator.
Warning signs Prohibition and obligation signs
W001 | General warning sign P001|Generalprohibitionsign
W004 | Laser beam M001 | General mandatory sign
W005 | Non-ionizing radiation M002 | Refer to instruction manual/
booklet
W006|Magneticeld M005|Connectanearthterminaltothe
ground
W012 | Electricity M009 | Wear protective gloves
W017 | Hot surface M015|Wearhighvisibilityclothing
W027 | Optical radiation M021 | Disconnect before carrying out
maintenance or repair
1.5 Denition of operator
Alloperationsondevicesandonitsinternalpartsmustbeperformedbyprofessionalsta󰀨,properlyformedand
awareoftherisksconnectedwiththepowersupplyandtotheuseoflowandhighvoltagecircuits.
Take all the precautions in compliance with the safety standards for the work carried out on
electrical installations and however for the works carried out using electrical installations or
in bu󰀨er zones of the installations and of the electrical devices.
Alloperationsonequipmentsandonitsinternalpartsmustbeperformedbyprofessionalsta󰀨,properlytrained
forCardioPulmonaryResuscitation(CPR)techniques.
Never operates on devices if there is not at least another operator properly trained for CPR
techniques.
CheckthatOperatorsdonotoperateoutsidetheirownspeciceldsofcompetenceandresponsibility.Energy
TechnologyS.r.L.declinesanyandallliabilityarisingfromwrongoperationscarriedoutbyuntrainedpersonnelin
theuseofthedevices,orderivingfromthenoncomplianceofgeneralsafetystandards.

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1.6 Limited warranty
EnergyTechnologyS.r.L.assuresthatalltheIRMproductsmarketedarefreeofmanufacturingdefectsatthe
timeofshipment.Thislimitedwarrantywillbevalidfortheperiodindicatedinthesalesagreement.THISLIMITED
WARRANTY IMMEDIATELY DECAYS IF THE PRODUCT IS USED FOR PURPOSES OTHER THAN ORIGINALLY
INTENDED.
ThislimitedwarrantyisprovidedbyEnergyTechnologyS.r.L.totheoriginalpurchaserofIRMproductsasidentiedbythe
documentsissuedatthetimeofpurchase.ThislimitedwarrantycanbetransferredtothesubsequentpurchasersoftheProduct,
onlyonconditionthatthisProductisresoldasNEWandwiththeoriginalpackaging.
Each change and/or tampering made to the product immediately ends of the warranty. Energy
Technology S.r.L. cannot be held responsible for any damage to items or persons deriving
from the failure to comply with instructions relating to installation, use and maintenance of
the product, and to the installation and storage environmental conditions stipulated by the
Manufacturer or by applicable rules regarding electrical devices and systems.
Incaseofpotentialdefectsornon‑usabilityoftheGoodssupplied,theapplicablewarrantythatexcludesanyotherlegalwarranty
andagreement‑appliestothedefectsofmaterials,inthedesign,and/orintheinstallationoftheGoodssupplied.Thewarranty
consists,dependingontheSupplier,intherepairorreplacement,attheexpenseoftheSupplier,ofeachfaultycomponentor
malfunctioningcomponentfromthebeginning,butisnotextendedtodamagesarisingfromnegligenceorwear.
Thiswarrantylastsforatleast12monthsafterthedateonwhichthereceivedGoodsareputintoservice,butwillnotinany
caseexceed24monthsfromtheshippingdate.
FAA
For FAA certied products this warranty lasts for at least 4 years after the date on which
the received Goods are put into service, but will not in any case exceed 5 years from the
shipping date.
TheSupplierundertakestorepairorreplacethecomponentsintheshortestpossibletimewithoutprejudicetothefactthatfor
thesocalledcommercialcomponentsandmoregenerallyforthecomponentssuppliedbythird‑partymanufacturers,willonly
beappliedthetermsoftherespectiveoriginalmanufacturer'swarranties.
ThewarrantyabsolvesfromallliabilitytheSupplieranddoesnotapplytothedamageofanykind,causedby:improperuse
bytheCustomerorbytheCustomer’ssta󰀨,useofinadequatematerials,orincorrectorinsu󰀩cienttreatments;installation
ofequipmentsorsparepartsnotapprovedbytheSupplier;installationandoperatingworkingoftheGoodsreceivedwithout
followingtheindicationsandtheinstructionsprovidedbytheSupplier’sTechnicalsta󰀨;improperorexcessiveuse,insu󰀩cient
maintenance,and/orworksnotcarriedoutinconformitywiththeinformationprovidedintheuseandmaintenanceinstructions;
anyotherreasonnotattributabletotheSupplier.TheCustomermustshoulder,atitsowncostandemployingitsownsta󰀨,
withoutinvolvingtheSupplier,thoserepairsthatonthebaseoftheSupplier’sopinionareconsideredcompliantatamoderate
leveloftechnicalknow‑how.
TheCustomermust,underpenaltyofexpiration,communicatethecomplaintconcerningthedefectorthenon‑conformitytothe
Supplier within 8 days from the date of discovery of the defect,andmustsendawrittenrequesttoactivatetheintervention
underwarranty.Theinterventionrequestunderwarrantymustbesentto:
Energy Technology S.r.L. | via della Solidarietà, 2/1 | 40056 Valsamoggia BO (Italia)
[email protected]
TheCustomermustbearthetravelandaccommodationcostsbornebythetechnicalsta󰀨oftheSupplierthatmust
completeontheinstallationsiteanyinterventionassociatedwiththeguarantee.
Thewarrantyexcludesanyotherdamage,includedthoseresultingfromeconomiclossandfromlowproduction
capacity;direct,indirectorconsequentialdamages;andtheContracttermination.
TheSupplierisnotinanymannerresponsibleforanyothercompensationorindemnity,includingdamagederived
frommissedorreducedproduction,fromthelossofchance,fromthemissedorreducedprot,fromthelossof
contracts,impossibilityofuseoringeneralthepartialuse,inadditiontoindirectand/orconsequentialdamages.

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1.7 CE marking
ThisequipmentcomplieswiththerequirementsofEuropeanlegislationfortheCEmarking.The
usershouldcarefullyreadthisdocumentandrespectalltherequirementsquoted.
ThisequipmentmeettherequirementsinrelationtohealthandsafetyofthemainECdirectives,andinparticular
oftheEMCDirectiveonelectromagneticcompatibility(2014/30/Ue)andoftheLVDirectiverelatingtoelectrical
equipmentdesignedforusewithincertainvoltagelimits(2014/35/UE).
1.8 Condentiality, industrial property rights
TheCustomerneedstoadoptthemaximumcondentialitywithrespecttoalltheinformationoftechnicalnature
(including,bywayofexampleandnotexhaustively,plans,programmes,documentation,formulas,recipes,setting
andcorrespondence)receivedbytheSupplierorinanycaseassimilatedorgainedduringtheconclusionofthe
Contract of sale.
Anyrightregardingintellectualandindustrialpropertyconnectedtoequipmentsandtoanyotherelementincluded
inthesuppliedGoodsasindicatedintheContractremainexclusivepropertyoftheSupplier.
1.9 Disposal
Attheendofuse,theusermustconferallthewasteinsuitabledi󰀨erentiatedwastecollectioncentres.
ItistheresponsibilityoftheuserthecorrectdisposaloftheequipmentinaccordancewiththeWEEE
Directiveandwiththerespectivenationallawsinforceatthetimeofdisposal.Theseequipments
mustneverbedisposedofinthehouseholdwaste.
1.10 Article identication
Ontheequipmentsthereisanidenticationplateofthearticle,whereisreportedthearticlecode;ontheplate
thereareadditionaldata:thenameofthemodel,employmentsoruse,powersupplyfeatures,anytrademarks
and/ormarksthatattesttheagreementoftheequipmenttospecicregulationsorlegislations.

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DESCRIPTION
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2 DESCRIPTION OF THE DEVICE
2.1 General characteristics
ThemeasurementdeviceIRMisdesignedforthepurposeofperformingthemonitoringoftheinsulationresistance
onacircuitairportseriespoweredbyaregulatorunitcompliantwith:
●IEC61822:Electricalinstallationsforlightingandsignallinginaerodromes‑Constantcurrentregulator
●FAA:AC150/5345‑10L‑828seriescircuitwithCCRcurrentregulatorunitwithoutmonitoring;L‑829series
circuitwithCCRcurrentregulatorunitwithmonitoring;
●ICAO:Annex14.
IRMiscompliantwiththerule
IEC (61010-1)
The device IRM described in this manual has been designed to be installed on L-828 or L-829
series circuit powered by regulator units compliant with FAA AC150/5345-10.
Each series circuit to be monitored must be associated with a device IRM, installable in the
cabin.

DESCRIPTION
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2.1.1 Generality
ThedeviceIRMperformsmeasureoftheinsulationresistanceofthecircuitairportseriesthroughtheperiodic
application of a voltage of about 800 VDCtoanendoftheseriescircuitbymeasuringtheleakagecurrenttothe
ground. The measuring interval can be customised (default: 60 sec).The device IRM can be inserted on the
seriescircuitindependentlyonthetypeofregulatorunitandwithouttheneedtomakechangestothecircuit.A
disconnectorswitcheasilyaccessibleallowthesupplycontrol.
ALEDdisplaypositionedonthefrontofthedeviceIRMallowstolocallyviewthemeasuredinsulationresistance
valueANDalternativelythecurrentvalues(andvoltage,optional)ontheseriescircuit,andthemainalarms.All
thethresholdvalues(pre‑alarmandalarm)canbecustomised.
Theinternalconnectionbetweenthemeasurementcardandtheinterfacecardisrealizedthroughapairofoptical
bres.
ThedeviceIRMallowstheremotemonitoring(optional)ofthemeasuredvalues.
Thedeviceissuitableatmonitoringseriescircuitspoweredbypowerregulatorunitsnothigherthan30kVA/6.6A,
inthemeasuringeld10kΩ÷500MΩ.
2.1.2 Construction detail
Thedeviceconsistsofacaseinzinc‑coatedsteel,paintedwiththermosettingepoxypowders(colourRAL7032).
Theinternalsidesofthedevicearesegregatedbypanelsinpolycarbonat,removableonlyinsafetyconditionsfor
theoperator(asindicatedonthemonitoringplates).
Theintakeandoutletofthecablesoftheseriescircuitandofthesupplycircuitisforeseenfrombelowthrough
suitablecablegland.Theprotectiveconductor(min.10mm2)mustbeattestedthroughaterminalstudtothe
screwM8presentonthecontainer.Onthebottominadditionthereareconnectorsorcableentrysystemsforthe
connection of signals (optionals).
Thedeviceispredisposedforthewallfasteningthroughsuitablefasteningsystemthroughscrewsandplugs(not
provided).Atemplate330x420mmallowsaneasierrealizationofsupportholesproperlyaligned.
2.1.3 Optional devices
●Seriescircuitratedvoltagereading:thedeviceallowsthemeasuringofthevoltageontheseriescircuit,
makingthemavailableonthelocaldisplayandontheremotereading.
●Electromechanicalremotesignalling:aterminalboardonthecardoraconnectormakeavailablethereverse
contacts(NC,C,NA)torepeattheWARNING,ALARMandMANUALstatus.
●IRMSremotecontroloption:ispossibleremotemonitoringofthevaluesmeasuredfromthedevice,through
a LONTALK network (standard ISO/IEC 14908-2). A connector type HARTING 5 pin (2 conductors twisted
pair+shield)‑supplied‑allowstoeasilyconnectthedevicetothenetwork.

DESCRIPTION
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2.2 Article number
example: IRM -1-1-RC-0-B
Infeed Cut-Out:
1 = Cut-Out present
Voltage measuring on the series circuit
0
1
=Voltageontheseriescircuitnotdetectable
=TVforvoltagemeasuringontheseriescircuit
Electromechanical remote signalling (NO/NC):
00
RM
RC
= No remote signalling
=Remotesignallingwithterminalboard
=Remotesignallingwithconnector
Voltage loop:
0
1
= Voltage loop not present
= Voltage loop present
CNT data interface:
A
B
= LonTalk (4P+GND)
=Ethernet(RJ45)
2.2.1 Infeed Cut-Out
ThedeviceIRMisequippedwithacut‑outforaneasierdisconnectionofthedevice.
The disconnection of the supply circuit does not prevent the normal operation of the series
circuit.
2.2.2 Voltage measuring on the series circuit
ThedeviceIRMcanprovidethereadingoftheactualvoltagevalueontheseriescircuit.Thevoltagevalueislocally
availableandiscommunicatedtothecabinsupervisionsystem.
2.2.3 Remote signalling
ThedeviceIRMcanbeequippedwithasignallingsystemofelectromechanicalremotesignallingoftheanomalies:
FAULT,WARNINGandERROR.
For each type of anomaly detected is made available a dry reverse contact (NC+NO).

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INSTALLATION
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Series circuit
monitored by IRM
Series circuit
not monitored
3 INSTALLATION
3.1 Insulation measurement device
ThemeasurementdevicesIRM,installedtotheseriescircuit,displaylocallyinformationsthroughthedisplayandthe
signallingLEDonthefrontandprovideinformationtothesupervisioncentralunitwithrespecttoalltheoperating
conditionoftheinsulationofthecircuit.Thismeasurementdevicecanbeinstalledasautonomouselementoras
an element of an integrated monitoring system.
Thefeaturesofseriescircuitsubjecttomonitoringmustbecompliantwiththedispositionsofcompetentbodies
andwiththeregulationsinforce.Thedeviceperiodicallyperformsthemeasureoftheinsulationresistanceofthe
seriescircuitinordertomonitorthedeteriorationofthefeaturesofthematerialsinstalledovertimetoensurethe
e󰀩ciencyofthesystem.
ThemeasurementdeviceIRMisabletogeneratewarningandalarmmessagestobeintegratedinthemandatory
reportingforthepropermanagementandmaintenanceoftheairport(FAAAC150/5340‑30).Themeasurement
deviceIRMisanequipmentusefulforthemanagementoffaultsandforaneasieridenticationofthecabinproblems.
For the features of the CCR regulator units always refer to the requirements of the relevant
standard:
• IEC 61822 Electrical installations for lighting and signalling in aerodromes - Constant
current regulator
• FAA AC 150/5345‑10 Specication for Constant Current Regulators and Regulator
Monitors;
• ICAO Annex 14.

INSTALLATION
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PROTECTIVE CONDUCTOR
230VAC POWER
CABLE ENTRY
SERIES CIRCUIT
CABLE OUTPUT
SERIES CIRCUIT
CABLE ENTRY
3.2 Installation of the device
Store the device in its original packaging until the time of installation.
Check the supply features before installing the device.
UsethedeviceonlyincombinationwithseriescircuitpoweredbyCCRregulatorunitsbypowernothigherthan
30kVA,compliantwiththestandardIEC61822,FAAAC150/5345‑10(L‑828,L‑829)andICAOAnnex14.
Before proceeding with the operation, check the conditions of the device:
●checkthatthemechanicalxingofthecomponentsaresteady;
●checkthattheinternalconnectionsareproperlycongured;
●checkthattheinternalequipotentialconnectionsareallrealized;

INSTALLATION
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PROTECTIVE CONDUCTOR
(min. 10mm2)
SERIES CIRCUIT
max6.6A‑30kVA

INSTALLATION
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REMOTE
SIGNALLING

INSTALLATION
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CNS
REMOTE
SIGNALLING

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3.3 IRMS remote control
TheIRMSsoftwareallowsthesupervisionofthesystemofmeterswithCNTinterfaceLONTALKtype.
The measurement devices IRM -_-_-__-_-A are equipped with the LonTalk network interface.
The supervision software must be installed on a PC connected through router to the eldbus
LonTalk to communicate with the measurement devices IRM. Through Ethernet connection
it interfaces with the LAN.
ThecabinPCcollectsdataandlogfromcabindevicesandmakesthemavailabletothesupervisionserverofthe
wholesystem.
3.3.1 Cabin supervision software
AllthemonitoringdevicesIRMinstalledineachelectriccabintransferthemeasurementdatatolocaldatabasewith
theconguredinterval.Thesupervisionsoftwarefocusesonrealizingthecalculationofstatistics(average,standard
deviation,maximum andminimum,...) and ofproviding agraphic interface tothe operator, withauthentication
system.Throughsoftwareinterfaceispossibletoviewtheprogressofthemeasuresintimeandconsultthestatus
ofeachdevice.
Themainmeasurementparameterscanbeupdated,bytheonlyauthorizedoperators,onthebasisoftheneeds:
savingfrequencyinthelocalDB,alarmthresholdvalue,warningthresholdvalue.
Thedataarethensenttotheaggregationclientstation.
3.3.2 Aggregation client station
TheclientstationreceivethemeasurementdatafromallthesupervisoryapplicationsactiveontheEthernetnetwork.
ThemeasuresaresavedintheglobalDB.
Theinterface,similarlytothesupervisionsoftware,allowsthevisualizationofdataandthemanagementofthe
measures.