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ibaInSpectraReal-time monitoring of process vibrations
ibaCMC Condition Monitoring CenterCondition Monitoring of complex plants
An integrated System for Condition Monitoring and Process Analysis
Area of application Condition Monitoring
ibaCMU-SModular Condition Monitoring Unit
iba AG
The Expert for Measurementand Automation Systems
Cutting EdgeFor more than 30 years, our area of expertise hasbeen the development of high-quality systems formeasurement value acquisition and analysis, signalprocessing and automation.iba is one of the few manufacturers who master thewhole technology chain from hardware via softwareto database technology. Only those manufacturerswho understand their products in detail can fosterinnovations and provide competent advice and sup-port to customers.
CommunicativeIn addition to the practice-oriented functionality amain characteristic of our hardware and softwareproducts is the distinct connectivity to the automa-tion systems. Various manufacturers and systemgenerations are taken into account and even legacysystems can be integrated as well: A clear benefit inthe life cycle of the plant.
It is our mission to bring transparency to the world of automation with our measurement systemsolutions. By means of an iba system, the user can understand and master the growing technologicalcomplexity of automated processes and mechatronic systems. As with a flight recorder, all essentialsystem and process data from various signal sources, field buses and automation systems are recorded continuously and synchronously. For analyzing these data, we have developed powerful analyzing tools which comfortably support interactive work as well as automatic information generation.
Automotive Paper & Fibre industry
TransportPackaging
Metal producing industry Oil & Gas
Energy Mining
Areas of application
Troubleshooting
Process analysis
Quality Documentation
Condition Monitoring
Power Quality
Gauging System Control
Automation of Test Benches
Retrofit
Data
Acquisition Data Recording
Information
Retrieval DataAnaly
sis
2
3
An integrated system for Condition Monitoring and process analysis .. 4
ibaCMCCondition Monitoring of complex plants ......................... 10
ibaInSpectraReal-time monitoring of process vibrations ..................... 7
ibaCMU-SModular Condition Monitoring Unit ................................ 12
Application exampleCritical vibrations in rolling mills .................................. 14
4
Area of application
Condition MonitoringFor detecting wear and tear on mechanical components in an early stage in the process, Condition Monitoring Systems (CMS) use vibration measurement in combination with intelligent analysis pro-cedures. This provides the basis for the change from a preventive to a condition based maintenance strategy. This way, mechanical components are used in an optimal way over their real service life and the costs for unplanned downtimes and replacement parts are reduced.
Optimum planning of maintenance work For reaching a maximum productivity, industrial plants need a high level of availability. Downtimes – especially unplanned ones – need to be prevented. Changes, due to wear and tear of the equipment, usually result in different mechanical vibrations.By means of vibration measurement, Condition Monitoring systems detect signs of wear in an early stage in the process and hence allow for an optimum planning of maintenance work.
Vibrational behavior in complex plants For simple components without considerable ex-ternal infl uences on the vibrational behavior, wear can be predicted quite reliably by means of vibration measurement. In complex production plants, the vibration behavior is infl uenced by a number of ex-ternal factors, like e.g. changing loads in the process or the processing of different materials. Only with the simultaneous monitoring of all ma-chine, process, material and quality data, the dam-ages on machine parts can be detected reliably. Moreover, the causes for exceptional wear can be determined.
Hardware and software for Condition Monitoring - perfectly matched The Condition Monitoring solution by iba, with the Condition Monitoring Center ibaCMC and the Con-dition Monitoring Unit ibaCMU-S, offers powerful functions for monitoring wear on machines and pro-cess-induced vibrations as well as the possibility to correlate the data with each other. The hardware ibaCMU-S that has especially been developed for Condition Monitoring applications, allows the on-site processing of vibration and pro-cess signals in order to determine characteristic values for damage levels. Based on the iba modular system, up to 32 vibration signals can be processed. The interfacing to the process is done by the integrated ibaNet FO interface or via Ethernet TCP/IP. ibaCMU-S is confi gured using the Condition Monitoring Center ibaCMC by defi ning the single machine components.
ibaCMU-S
LongTerm
DB
ibaPDA ibaCMCibaInSpectra
5
Reducing downtimes, preventing false alarmsIn the Condition Monitoring Unit, so called snapshots of the vibration data and the simultaneously ac-quired process data are recorded. The damage indi-cators, calculated from the snapshots are displayed in ibaCMC as long-term trend and are monitored for exceeded limit values. When determining the long-term-trends, the damage level values are correlat-ed to the process parameters and material data, for compensating process-related influences on the damage indicators.The derived values are called “virtual trends”. The quality of the trend is improved considerably by means of this process and maintenance measures can be planned reliably. Besides the opportunity of a long-term analysis, ibaCMC offers more functions like a convenient con-figuration surface with a comprehensible compo-nents database, intelligent alarming, a powerful re-porting system and much more.
�For detailed information about ibaCMC, please see page 10.
Online Monitoring: Optimizing processes, enhancing product qualityibaInSpectra is an integrated technology module of the ibaPDA process data acquisition system and pro-cesses vibration signals continuously and in real- time. By means of spectrum analyses, vibrations can be monitored online and put into relation to other process parameters. If vibrations reach critical states, the operator of the plant is informed immedi-ately, e.g. by an alarm message or via e-mail. More-over, interventions in the plant control system are possible in order to adapt automatically the corre-sponding para meters. ibaIn Spectra offers different modules for analyzing vibrations online. Also users with little practical ex-perience can do fast analyses due to the pre-config-ured calculations. For experts in the field of vibra-tions, there is a freely configurable expert module that allows for the implementation of a wide spec-trum of applications. The frequency bands that are to be monitored can be defined in a fixed way or de-pending on the process variables and checked for exceeded limit values.
�For detailed information about ibaInSpectra, please see page 7.
Long-term analysis of the machine state Vibration monitoring in real-time
�With ibaCMC and ibaCMU-S � Control for the process engineer � Capturing of “snapshots” � Long-term trending � Virtual trending (correlation to process data) � Alarm messages for defined conditions � Reporting function
�With ibaPDA and ibaInSpectra � Control for the operator of the plant � Continuous monitoring of process vibrations � Pre-configured standard modules � Freely configurable spectrum analysis � Online visualization � Real-time alarm � Feedback to the control system � Recording of “snapshots” and band parameters for subsequent analysis with ibaAnalyzer
In brief
6
ibaCMU-S ibaCMC
Vibration signals
Process signals Ethernet
*.xml*.dat
ConfigurationComponent databaseVirtual trendingStatusReporting
Drive control
ibaInSpectraibaPDA Server
PLC
+-
IO
S11
X1424V
RXX11
TXX10
S10
S1Mode
S2Address
Run
L30L31L32L33
X22Ethernet
RunBusActiveError
X40
Bus
0
X41
Bus
1
ibaBM-DP
L34L35L36L37
RunBusActiveError
Error32Mb
3.3Mb
Fieldbus
ibaNet
ibaNet
ibaPDA ClientibaCMC Web Client
ibaPADU-4AI-U
ibaNet100 kHz
Condition Monitoring as an autonomous, superordinate system The iba system distinguishes itself by a distinct con-nectivity to all common automation systems and hence offers a homogeneous, superordinate Con-dition Monitoring solution for plants with heteroge-neous automation environments. The numerous open interfaces to the automation systems allow the direct access to the relevant oper-ating parameters. The data can be acquired across the plant in the relevant resolution without impairing the automation process. For a good frequency resolution, often vibration sig-nals have to be acquired at a high sample rate over long periods of time. A CMS integrated in the auto-mation would additionally burden the automation. One reason in favour of a superordinate Condition Monitoring system is that the information that is acquired simultaneously in different plants can be compared. Only with the central acquisition and analysis of all relevant data a cross-plant diagnosis of the plant conditions and production processes be-comes possible.
Powerful hardware and comprehensive connectivityibaCMU-S is the metrological core of the system. The hardware is designed in a modular way and thus can be adapted to the different requirements in a customized way. The modular system consists of the central unit ibaCMU-S and up to 4 input/output mod-ules with analog and digital inputs and outputs and vibration inputs according to the IEPE standard. ibaCMU-S acquires the signals of the connected sensors absolutely time synchronously at up to 40 kHz and processes these signals in real-time. The calculation results and raw data are stored together and form the basis for further analyses. Optionally, ibaCMU-S can transfer the data in full resolution to an ibaPDA system via FO conductor. There, the data can be processed according to differ-ent aspects. In practice, often several distributed modular sys-tems are used, that are all confi gured with an ibaCMC and communicate via Ethernet. For special applications, modules with sample rates of up to 100 kHz are available. Optionally, slower process signals can be connected using ibaNet750-modules and ibaNet FO conductors. Data from the controller can be interfaced via fi eld buses, like e.g. Profi bus, EtherCAT and CAN bus.
�For detailed information about ibaCMU-S, please see page 12.
Example for a production-wide Condition Monitoring solution plus process vibration analysis
7
Spectrum analysis library
ibaInSpectra With ibaInSpectra, any vibrations are monitored continuously and possible error sources can be detected in an early stage. As the ibaInSpectra library is integrated in ibaPDA, not only pure vibration analyses can be done, but also possible relations between vibrational effects and process behavior can be determined.
In brief � Technology module for ibaPDA �Real-time analysis of vibrations �Wide connectivity �Comprehensive confi guration options �Calculation profi le for multiple use � Visualization according to requirements �Waterfall representation �Display of the frequency bands and characteristic values � Alarming in case of exceeded limit values �Correlation of vibration and process data
Open and versatileIn contrast to many other Condition Monitoring sys-tems, ibaInSpectra is not a manufacturer-specifi c system or limited to individual machines, but uses the broad connectivity of ibaPDA and the iba hard-ware. Thus, it is perfectly made for the use in hetero-geneous automation structures, that are character-ized by a great number of different technical disci-plines and controller types. Due to the smooth integration in ibaPDA, vibration-al measurement data as well as other machine, pro-cess, material and quality data can be acquired cen-trally and put into relation to each other. Hence, be-sides the pure vibration analysis of a single machine, also possible effects of the vibrations on the process stability and product quality can be detected.
Real-time analysisMany systems for Condition Monitoring are designed for long-term trends and often analyze the vibra-tion sensors in intervals of hours or days for a short time. However, with ibaInSpectra, the sensors can be monitored time-synchronously and continuously and the current frequency analyses can be displayed in real-time. Negative trends as well as signifi cant correlations can be detected early in the process. Critical conditions or exceeded limit values can be signaled immediately, which contributes signifi cant-ly to the protection of man, machine and material. Moreover, process parameters that infl uence the vibrational behavior, can be adapted automatically online.
Flexible confi gurationDesigned as integrated technology module of ibaPDA, ibaInSpectra serves as software for band parameter analysis preferably for mechanic vibra-tions. ibaInSpectra offers different modules that are confi gured in the I/O Manager of ibaPDA.
� The expert module offers the most diverse opportunities for parameterizing the frequency band analysis and is the favored tool for experts in the fi eld of vibrations.
� The universal module can be confi gured in an easy way and calculates the most common characteristic values for vibration monitoring in the time domain.
� The fan module is made for monitoring fans and calculates especially indicators for the status of fans.
More modules are in preparation.
In the expert module, the frequency bands that are to be monitored can be defi ned freely, statically as well as dynamically depending on other measure-ment values.The following parameters are determined as result of the analysis for every frequency band:
� Peak
� RMS (root mean square)
� Peak frequencyFor RMS and peak, two limit values (alert, alarm) can be additionally defi ned.
8
Configuration dialog for calculations
Online spectrum analysis with ibaPDA and ibaInSpectra
Besides the values from the frequency domain, further values like minimum, maximum, average value, RMS or Crest factor are determined in the time domain of the signal.The calculation bases for the analysis can be adap-ted individually by the user on many levels and stored as profi les.Besides the sensor type and the spectrum type, FFT calculation parameters like the number of samples, window type and overlap percentage can be set. There are different methods for determining the average value as well as the possibility of detrending for compensating a slow drift of the measured value. Profi les that have been defi ned once, can be stored and then used several times.
iba modular systemVibration signals
Process signalsDrive
controlibaInSpectra
ibaPDA Server
PLC
+-
IO
S11
X1424V
RXX11
TXX10
S10
S1Mode
S2Address
Run
L30L31L32L33
X22Ethernet
RunBusActiveError
X40
Bus
0
X41
Bus
1
ibaBM-DP
L34L35L36L37
RunBusActiveError
Error32Mb
3.3Mb
Field bus
100 kHz
ibaNet
ibaPADU-4AI-U
40 kHz
Configuration dialog for frequency bands
Configuration dialog for alert and alarm meassages
Parameters for calculation profi les
Sensor type DisplacementSpeed Acceleration
Spectrum type DisplacementSpeed Acceleration
Number of lines up to 204800
Number of samples up to 524288(depending on the number of lines)
Overlap percentage 0 to 95 %
Suppress DC yes/no
Drift compensation yes/no
Window type Bartlett, Blackman, Black-man-Harris, Hamming, Hanning, Rectangular
Normalized yes/no
Method Magnitude/Power
Calculation of averagevalue for frequency ranges
Linear/Exponential/Peak hold
9
Alert and alarmWhen configuring the alert and alarm limit values,the ibaInSpectra expert module automatically sup-plies digital signals which are activated as soon as the limit values are exceeded. Via the output inter-faces of ibaPDA, these signals can be made available to other systems for alerting or interventions in the process control.
Operation and visualizationibaInSpectra expert modules have an own branch in the ibaPDA signal tree. For the display, only an FFT view needs to be opened and the ibaInSpectra mod-ule has to be dragged in by means of Drag & Drop. The standard views waterfall, frequency band, cur-rent value tables and time domaine trend of the in-put signal are available immediately. They can be displayed and hidden when required.By means of markers that can be freely defined, any desired frequency and its Harmonics can be followed in the display (order tracking). This can be really of interest in case of dynamic operating states of a plant.
Consistency up to the offline analysisWhen recording with ibaPDA, the ibaInSpectra ex-pert modules are stored completely with all the cal-culated characteristic values in the measured data file. In ibaAnalyzer, all modules are available in the signal tree and the determined band parameters can be dragged via Drag & Drop into the trend view or used for other calculations.
Order analysis and calculation of envelope curves In the calculation profile of the ibaInSpectra expert module, the user can select a speed signal for re-sampling the input signal depending on the rotation speed. This speed signal can be a pulse sequence, a pulse counter or an absolute speed value. By means of resampling, the order analysis for changing speeds is displayed in a much more comprehensive way than by means of rescaling the x-axis.Moreover, signals can be pre-processed with the ibaInSpectra module. Thus, the vibration signals can be filtered and mathematical precalculations can be done. There is also an envelope calculation with freely configurable bandpass filter available as sig-nal pre-processing profile.
Control elements for the display
Frequency spectrum of the input signal, displayed as 2D diagram or as isometric waterfall diagram (history) with order tracking (marker)
Display of the configured frequen-cy bands with display of peak, peak frequency, RMS, limit values for alert and alarm, display of values on mouse hovering, changing color when limit values are exceeded
Table with the characteristic values of the configured bands
Acquired values of the input signal for calculating the FFT, displayed in the time domain
Table with characteristic values in the time domain
10
Condition Monitoring Center
ibaCMCThe Condition Monitoring Center ibaCMC is a high end web-based desktop application for trending, alarming and reporting taks. The only piece of software needed on the client side is a web browser.
In brief � Analysis and confi guration backend for ibaCMUs �Comfortable database driven trend analysis �High end web-based desktop application � Extensive mechanical component library � Alarming and reporting module (e-mail) � Virtual trend calculation module �User and group management module � Support of multiple trends, zooming, auto-reload, navigation bar
Role based user managementDifferent user roles (e.g. administrator, signal ana-lyst, electrical maintenance, responsible plant en-gineer) demand different functionality and different data to look at. The detailed user confi guration mod-ule provides an extensive toolbox for this task.
Easy confi guration The ibaCMC provides a built in component library, which can be used to setup the plant confi guration quickly by using the provided Drag & Drop functio-nality.
Hardware confi gurationThe hardware confi guration module allows the fl ex-ible confi guration of the ibaCMU devices. TCP/IP communication and optional ibaNet750 connections via ibaNet FO are supported as well. The confi gura-tion can be downloaded to the ibaCMU directly, which will automatically perform a reboot, to apply the new confi guration.
Trend viewThe trending module provides all the well known functionality like zooming, multiple trends in the same view, cursors, navigator bar and many mo-re. Linked to the trend time axis detailed analysis of time signals, FFT and envelope FFT can be per-formed. The auto-reload function updates the views automatically when the trend cursor is moved.
Plant configuration
11
Virtual trendingThe ibaCMC also supports so called “virtual trend-ing”. Fault indicators (trends) being calculated from vibration signals, are depending on the process con-ditions of the plant or the environment, which leads to false alarms. The virtual trending module uses additional process data to compensate this effect.In combination with the ibaPDA process data ac-quisition system, providing connectivity to all major PLCs, fi eld buses and network protocols, the rele-vant process data are easy to access.
Alarming and reporting featuresEvery trend has got several status properties, where confi gured users can be alarmed on:
� threshold value is exceeded
� trend value is below threshold value
� variance of the trend is exceeded
� standard deviation is exceeded.
The trend status properties themselves can be com-bined and even weighted individually to get more meaningful alarms. The alarms will be sent to con-fi gured users via e-mail.PDF reports can be sent in addition to the mentioned alarms. The user can choose out of a predefi ned set of PDF reports.
Installation possibilitiesibaCMC can be operated in several ways. The classic way is to install it on a dedicated server hardware, but it can also be integrated into a virtual environ-ment (e. g. VMware® ESX™) seamlessly. It therefore can be operated in an electrical room near the plant, in the IT department or it can even be hosted at an external service provider.
Because the confi guration of a condition monitoring system, the selection and installation of the sen-sors and the interpretation of results require solid knowledge in the fi eld of vibration analysis, we re-commend the integration of the system through a qualifi ed supplier or together with support services (consulting, training, support).Trend view, envelope FFT, time signal
Example for „virtual trending“: The fault indicators for bearings or gearing derived exclusively from the frequen-cy spectrum or envelope spectrum are, in part, strongly influenced by environmental conditions. This may lead to false alarms, see picture on the left. When the vibration signals are correlated to process signals, the quality of trending and alarming will increase significantly, see pictures on the right without false alarm.
False alarms
12
Modular concept The modular concept is based on ibaCMU-S as cen-tral unit, which has 8 digital inputs, and can be ex-tended by up to 4 input/output modules. As I/O mod-ules there are modules for vibration measurements according to IEPE standards available as well as an-alog inputs and digital outputs. Various analog input modules are suited for current and voltage signals of different signal ranges. ibaCMU-S and the I/O modules are plugged on a backplane panel with backplane bus, that also serves for supplying the voltage to the I/O modules.
Time-synchronous acquisition ibaCMU-S acquires the raw data of the connected sensors time-synchronously and with up to 40 kHz and processes them in real-time. The calculation re-sults and the raw data are stored in the internal hard disk and optionally transferred to an ibaPDA system via FO conductor.
Web-based confi guration ibaCMU-S can also be operated without an ibaPDA system. On the central unit, there is a web-interface available that offers various diagnostic functions. Moreover, various tests or a restart can be done. The real confi guration of the system is done by means of ibaCMC. There, the user can confi gure the plant that is to be monitored, defi ne analyses and alarm functions and the generation of reports.
Application examples
ibaCMU-S with ibaCMC � Central monitoring of production plants with ibaCMC and decentralized ibaCMU-S systems
� I/O extension via ibaNet750 (3Mbit ibaNet) possible
Monitoring the whole plant with ibaPDA, ibaCMU-S and ibaCMC
� Monitoring in the context of a complex plant
� Central acquisition of all relevant machine, process, material and quality data.
Acquiring, pre-evaluating, storing measurement data
ibaCMU-SWith the modular hardware concept, the Condition Monitoring solution can be adapted optimally to different requirements. A web-based operating concept allows for a simple and user-friendly confi guration and visualization.
In brief �Modular Condition Monitoring Unit (CMU) with integrated calculation of CM values �Cross-plant solution with decentralized CMUs and central ibaCMC for confi guration, long-term trends and alarming � All CMUs provide identical complex functions for spectrum analyses, that are confi gured individually for the measurement location and the part of the plant that is to be monitored �Confi guration with ibaCMC or website download �Optional acquisition of raw data with ibaPDA via FO outputs � FO and Ethernet interface �Data storage in the device (110 GB SSD)
Ethernet
ibaCMC
ibaCMU-SFO
optional ibaPDA
TimeSync.
X11RX
X10TX
Run
Link
Flex
Error
IO Run
IO Error
ibaNet750-BM-D
S1
Mod
eS
2A
ddre
ss
Ethernet
ibaCMU-S3Mbit
standalone
TimeSync.
ibaNet750
Ethernet
ibaCMC
ibaCMU-S
TimeSync.
X11RX
X10TX
Run
Link
Flex
Error
IO Run
IO Error
ibaNet750-BM-D
S1
Mod
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2A
ddre
ss
ibaNet750
3Mbit
...
32Mbit Flex
ibaPDA ibaCMU-S ibaCMU-S ibaCMU-S
#1 #2 #15
ibaRackline
ibaRackline
ibaRackline
ibaCMU-S ibaPDA Server ibaRackline
Ethernet
ibaCMC
ibaCMU-SFO
optional ibaPDA
TimeSync.
X11RX
X10TX
Run
Link
Flex
Error
IO Run
IO Error
ibaNet750-BM-D
S1
Mod
eS
2A
ddre
ss
Ethernet
ibaCMU-S3Mbit
standalone
TimeSync.
ibaNet750
Ethernet
ibaCMC
ibaCMU-S
TimeSync.
X11RX
X10TX
Run
Link
Flex
Error
IO Run
IO Error
ibaNet750-BM-D
S1
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2A
ddre
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ibaNet750
3Mbit
...
32Mbit Flex
ibaPDA ibaCMU-S ibaCMU-S ibaCMU-S
#1 #2 #15
ibaRackline
ibaRackline
ibaRackline
ibaRackline
ibaCMU-S ibaPDA Server ibaRackline
13
Processor unit
Processor 1.6 GHz Atom processor, single CPU
Operating system Windows CE® 5.0
Main memory 512 MB
Flash memory Solid State Drive 110 GB
RAM RAM Drive 128 MB
Clock (RTC) Unbuffered; optional external buffering via X30, synchronization by DCF77 (digital input) or NTP
Interfaces
ibaNet 32Mbit Flex, 3Mbit FO cable 50/125 μm and 62.5/125 μm ST
Ethernet 10/100 Mbit/s
USB for service purposes only
Digital inputs
Number 8
Design Galvanically isolated, protected against reverse polarity, single ended
Input signalNominal voltageMax. input voltage
DC 24 V ±60 V permanent
Signal level log. 0Signal level log. 1
> -6 V; < +6 V< -10 V; > +10 V
Input current 1 mA, constant
Debouncing filter Optional: 4 different operating modes
Sampling rate Up to 40 kHz, freely adjustable
Delay Typ. 10 μs
Electrical isolationChannel-channelChannel-housing
AC 2.5 kVAC 2.5 kV
Connector type 16-pin terminal block, connector with clamp-type, terminal and screw flanges (0.2 mm2 to 2.5 mm2), included in delivery
Power supply, indicators
Power supply DC 24 V ±10 % not stabilized1 A (without I/O modules), 3 A (with I/O modules)
Power consumption Up to 20 W
Indicators 4 LEDs for device status8 LEDs for digital inputs4 LEDs for CM applications
Certification
Standards EMC: IEC 61326-1FCC part 15 class A
Supported modules ibaMS8xICPibaMS16xAI-10VibaMS16xAI-24VibaMS16xAI-20mAibaMS16xDO-2AibaMS32xDO-24V
Technical data ibaCMU-S
14
Application
Detecting critical vibrations in rolling mills
In brief �Condition-based monitoring of machine vibrations �Online evaluation of process data from plants and of vibrational data �Conclusion to causes of the vibrational conditions possible � Automatically generated alarm messages can trigger automatic and manual adaptations � Integration in common automation systems independent of the manufacturer
The project In rolling mills, many vibrations may occur that have negative effects on the service life and the condition of the plant, but also on product quality. If wear and defects are detected early enough, appropriate counter-measures can be initiated for reducing waste and downtimes. Anyway, the user has to know exactly the vibrational behavior of the plant and set it into relation to other process data from the plant. In a cold rolling mill, the process data acquisition system ibaPDA has been used for process analy-sis, but the vibration measurement data was evalu-ated separately. With ibaInSpectra as add-on to the ibaPDA system, the acquired vibration signals can be analyzed within defi ned frequency ranges. Simulta-neously, processes with all machine, material and quality data can be monitored.
The technology Cold rolling mills show a complex vibration behavior, consisting of natural vibrations of the plant mechan-ics as well as excitations from the drive or bearings but also vibrations caused by defects. The aim of the monitoring is to detect vibrations that are caused by separate excitation or faults. In this particular case, acceleration sensors on the chocks which serve as bearing for the rolls give insight into the vibration-al behavior of the whole stand. During normal oper-ation, the natural vibrations of the stand are in the low-frequency range. High-frequency vibrations are an indicator for separate excitation. With ibaInSpectra, these vibrations can be assigned to individual components.
Used iba products Devices of the ibaPADU series sample the values of the vibration sensors at a rate of up to 100 kHz with four-fold oversampling and make these values available to the ibaPDA system in digital form. With ibaInSpectra expert modules, a freely confi gurable frequency band analysis in real-time can be applied to the data. For every frequency band, characteris-tic values like peak, RMS and peak frequency can be determined. The system records time-synchronously data from the plant like speed, rolling force, torque, etc. By means of the characteristic values of the fre-quency band and the process data, conclusions can be drwan about the cause of the unwanted vibra-tions. ibaInSpectra can vary vibration-relevant process pa-rameters online using the integrated alarm function, in order to keep the vibrations within reasonable limits. Additionally, the measurement data are visu-alized in real-time with the ibaQPanel on the control stand of the control system. Thus, the operator can initiate manual interventions in a targeted way.
System architecture
[Picture: Novelis]
ibaPDA ClientReal-time FFTStatus display
ibaPDA ServeribaInSpectra
ibaQPanel
Intranet/Internet
ibaPADU-S-CM
ibaRackline ibaRackline
Offline ClientAnalysis withibaAnalyzer
ibaPADU-S-IT ibaPADU-S-CM ibaPADU-4AI-U
ibaRackline
15
Order number Name Description
10.125010 ibaCMU-S Condition Monitoring Unit CPU, for up to 8 vibration signals
10.125011 ibaCMU-S-upgrade HW 8-to-16 License upgrade for 8 additional vibration signals
10.125012 ibaCMU-S-upgrade HW 8-to-24 License upgrade for 16 additional vibration signals
10.125013 ibaCMU-S-upgrade HW 8-to-32 License upgrade for 24 additional vibration signals
10.125014 ibaCMU-S-upgrade HW 16-to-24 License upgrade for 8 additional vibration signals
10.125015 ibaCMU-S-upgrade HW 16-to-32 License upgrade for 16 additional vibration signals
10.125016 ibaCMU-S-upgrade HW 24-to-32 License upgrade for 8 additional vibration signals
ibaCMU-S
Order information
Order number Name Description
30.681229 ibaCMC-Ultimate Condition Monitoring Center
30.681220 ibaInSpectra ibaPDA license extension, spectrum analysis library
30.681221 ibaInSpectra-lite Spectrum analysis library, limited to 8 modules
Software
Brochure: Areas of application - Condition Monitoring_v1.2_en 11/2016 Technical changes reserved
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iba Korea System Co. Ltd.Tel: +82 (51) [email protected]
iba China Ltd.Tel: +86 (21) 58 40 27 [email protected]
iba Systems India Pvt. Ltd.Tel: +91 (22) 66 92 08 [email protected] www.iba-india.com
iba Indonesiac/o PT. Indahjaya EkaperkasaTel: +62 (21) 34 57 [email protected]
iba Thailandc/o SOLCO Siam Co. Ltd.Tel: +66 (38) [email protected]
iba Turkey Ltd.Tel: +90 (312) 22 34 [email protected]
iba LAT, S.A.Tel: +507 (474) [email protected]
iba LAT ArgentinaTel: +54 (341) 51 81 [email protected]
iba LAT BoliviaTel: +591 (2) 21 12 [email protected]
iba LAT BrazilTel: +55 (11) 4111 [email protected]
Australia, New Zealand, Oceania
iba Oceania Systems Pty Ltd.Tel: +61 (2) 49 64 85 [email protected]
iba Africac/o Variable Speed Systems ccTel: +27 83 456 [email protected]
USA
iba America, LLCTel: +1(770) 886-2318 [email protected] www.iba-america.com
Canada
iba America, LLCTel: +1(770) 886-2318 [email protected]
Mexico
iba America, LLCTel: +1(770) 886-2318 [email protected]
iba AG is represented worldwide with subsidiaries and sales partners.