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PCM370 Plant Condition Monitoring System User Manual

1. W l O Ol ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 20 PCM370 Plant Condition Monitoring System PCM370 CFG Software Operation Start PCM370 CFG Software There are two methods for you to start PCM370 CFG software Method 1 Select Start All Programs PCM370 PCM370 CFG Method 2 Directly double click shortcut icon of PCM370 CEG on the desktop The login window is below 4 PCB3T0 User Login x ay Proviblech pemsto crG Ver 2 1 er WEHE User Name administrator Password fr gt SM cancel Enter User Name and Password in the related edit boxes and then click OK to log on If you are the first time to log on you can use the default user name and default password The default user name is administrator the default password is password You are strongly recommended to change the password after logon by selecting Modify Password from User menu ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 21 PCM370 Plant Condition Monitoring System Toolbar The toolbar of PCM370 CFG software is below a ep Za Lair Open an existed database file which is called Vibrate As an alternative to this operation you can select Open DB from File menu SH Backup a database file which is called Vibrate As an alternative to this
2. range of trend plot After you change the date and time you should click Refresh button to refresh the data and time on the current trend plot window 7 Magnify it is used to zoom in the trend plot Click this button and drag a rectangle the plot in this rectangle will be magnified 8 Restore click it to restore the magnified plot to original size 9 Pre Click it to view history trend plot of the previous channel on bar graph window If the current channel is the first channel this button will be disabled 10 Next Click it to view history trend plot of the next channel on bar graph window If the current channel is the last channel this button will be disabled 11 Print Click it to print the current trend plot window 12 Return Click it to back to the bar graph window History trend plot of a custom trend plot type Directly click Trend Plot on the main window and a menu pops up The custom trend plot types that have been defined by PCM370 CFG software are listed on the menu For example we have defined a custom trend plot type named DTM and you should select DTM H from the menu to view history trend plot of custom trend type DTM Following picture shows you the history trend plot of the custom trend type DTM ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 81 PCM370 Plant Condition Monitoring System DTM H History t
3. EE v View real time trend plot of the selected channel Check Real Time Trend Plot and then click OK v View history trend plot of the selected channel Check History Trend Plot and then click OK View alarm list of the selected channel Check Alarm List and then click OK v _ View status list of the selected channel Check Status List and then click OK ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 74 PCM370 Plant Condition Monitoring System Acknowledge Alarm button Click this button on the bar graph page window to acknowledge the alarm status of the machine train which the alarmed channel belongs to Print button If you want to print the current bar graph window you can click this button OPrint were Prhe brain beren z m ere ein resp ere meig pmo wD wx i ra D I va na 108 ra Leg Gi n ee KI Ow om pun J r i H i nn cum an Return button Click this button on the bar graph window to back to the main window CAUTION The channel s measure value which is shown on bar graph is calculated by PCM370 RUN software The color indication of bar graph for each channel depends on two factors the measure value calculated by PCM370 RUN software and the measure value uploaded from DAQ device Mostly the measure value calculated by PCM370 RUN software is the same
4. NOTES 1 2 10 E Ol Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com ProvibTech The title of the trend plot it shows the measurement point name plus channel name It shows the real time measure value of the selected channel and color indication for the real time measure value It shows the color indication for measure value of each status bit It shows the trend plot for each status bit When the bit returns 0 the bit is in normal and when the bit returns 1 the bit is in abnormal Red line on the upside shows danger set point yellow line shows alert set point blue line shows measure value of this channel Acknowledge Confirm Click it to acknowledge the alarm Pre Click it to view real time trend plot of the previous channel on bar graph window If the current channel is the first channel this button will be disabled Next Click it to view real time trend plot of the next channel on bar graph window If the current channel is the last channel this button will be disabled Print Click it to print the current trend plot window Return Click it to back to the bar graph window Real time trend plot of a custom trend plot type ei PCM370 Plant Condition Monitoring System Directly click Trend Plot on the main window and a menu pops up The custom trend plot types that have been defined by PCM370 CFG software are listed on the menu For example we have defined a custom
5. A potential vibration frequency on any bladed machine turbine axial compressor fan propeller etc It equals the number of blades on a disk or stage times shaft rotative speed Bode Plot A pair of graphs in Cartesian format displaying the 1X vibration vector phase and amplitude response as a function of shaft rotative speed The Y axis of the top graph represents 1X phase lag angle while the Y axis of the bottom graph represents 1X amplitude The common X axis represents shaft rotative speed Sometimes called an imbalance response plot Also used for 2X 3X ETC Vibration response vectors Bow A shaft condition such that the geometric shaft centerline is not straight Usually the centerline is bent in a single plane due to gravity sag thermal warpage etc however the bow may be three dimensional corkscrew Shaft bow can be detected by measuring the shaft relative displacement with a proximity probe s at rotor slow roll speed See Eccentricity Peak to Peak Calibration Weight Used in rotor balancing procedures a weight of known magnitude which is placed on the rotor at a known location under known operating conditions in order to measure the resulting change in machine 1X vibration response In effect such a procedure calibrates the rotor system a known input is applied and the resultant output is measured for its susceptibility to imbalance Sometimes called trial weight Campbell Diagram A diagram used in rot
6. Innovative Machine Monitoring PCM370 Plant Condition Monitoring System PCM370 CFG and PCM370 RUN User Manual Installation Operation Maintenance ProvibTech 11011 Brooklet Dr Ste 360 Houston TX 77099 USA Phone 1 713 830 7601 Fax 1 281 754 4972 Email sales provibtech com Web www provibtech com PCM370 USR B 3 Copyright 2008 by ProvibTech PCM370 Plant Condition Monitoring System Table of Content ET E 2 Important glossary defined in PCM370 sicsiscnacccnatnnnoedsenrvarasdandsnsedencandaaavsahusnaeannsdienduahiiind Gana heu ewhuiendeaaadectenduvaadeaesiuanccbessaecnts 4 VELI Eeer 5 Tao a E 5 UR A A ENO E A E AE 5 PCMSO Gir SOE WATE saradan a na a aa 5 EE 6 ee Ee alia ieri 7 E el 1 E E iti 8 IS ERR e E 10 OI RARE SE 10 Field Wiring Diagram 1 PCM370 with DTM DM200 PT580 via Modbus RTU ii 10 Field Wiring Diagram 2 PCM370 with PT371 via Modbus RTU 2 0 ceeeesssssseeeeeeececeeeceeeeeeaaeeeeenseeeeseeeees 10 Field Wiring Diagram 3 PCM370 with PT372 via Modbus RTU 2 0 ececeeessseeeeeeeeeeceeeeeeeeeaaaaeesseeeeeeeeeees II Field Wiring Diagram 4 PCM370 with PT373 via Modbus RTU cc ceesesessseeeeseeeeeeeeeeeeecesaaeesessseeeeeeeeess II Field Wiring Diagram 5 PCM370 with Modbus TCP Server Device via Modbus TCP Client 12 Load USB RS232 or USB RS485 Converter driver For Window XP 13 SE 4067 ERRE RR ERE IO 16 Unm le OE
7. ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com fe ave PCM370 Plant Condition Monitoring System evr Bar Graph Bar graph displays the real time measure value of the channel In PCM370 RUN software each bar graph window can display maximum 24 bar graphs If the channel number exceeds 24 you should go to other pages to view additional bar graphs Tenhi PTAS Trace fT Ted TT Troni ET 2 Trai PRESSE Feed PE ZOE Tired ET Tra PT Tron TS Tet ri art I mai rif G md far 4 3 mari p rh 3 maa Theni P TAOS Tranh P Ta beten Treni FT 060 Treni FTA Pree dar Hecht agin Tri POI Trasr PISO Tree PT Tee mardat t P rd myi mari mari mori mond mari art meri dAn Tree at mard cha che chi one che che Che cn cha Oe cha Bar graph channels selection v Viewbargraphsofall channels under a machine train Select the machine train in Machine Train List and click Bar Graph button on main window v View bar graphs of channels under a machine Select the machine train in Machine Train List and click the picture of this machine train and then click Bar Graph button on main window v View bar graphs of channels under a measurement point Select the machine train in Machine Train List and double click picture of the machine this measurement point belongs to and then click picture of this measurement point finally click Bar Graph button on main window Bar
8. lt 1 C oP 121 lt lt lt T lt m lt lt e_e__ EEE WWE E EE illlSN Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 52 PCM370 Plant Condition Monitoring System Map DAQ Device Mapping is the process of linking a data source to a measurement point This process links a monitored location on a machine train with hardware device that is actually collecting the data So before this process we should map the machine train with DAQ device Hap DAQ Device xX Machine Train Name Mapping Status Train Demo Trainl Nap VAQ Device Mapping Status If a machine train has mapped DAQ devices it will show Mapped and if the machine train hasn t mapped any DAQ device it will show blank Map DAQ Device button Selecting a machine train that hasn t mapped any DAQ devices this button is activated Click this button Hap DAD Device a x i CRE Machine Train Name Trainl Mapped Device Un mapped Device Select the device in Un mapped Device list and then click lt lt button to move it to Mapped Device Repeat it to map more DAQ devices to the selected machine train Finally click OK View button Selecting a mapped machine train this button is activated Click this button to launch View window ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 53
9. E e 9 gt ES ei 16 E e 3 rae 0 10 na Digital Signal Grounding Relay 3 Output Relay 10 Output 20 34 Parameter Setup B B RS485 Grounding Relay 4 Output Relay 11 Output l l 7 Digital Signal A A Grounding Relay 4 Output Relay 11 Output 22 36 RS485 B B B e 5 lena o 12 ne oo 5 gt e 12 We Relay 6 Output Relay 13 Output Relay 6 Output Relay 13 Output D ER a o SSES KA a Sa LA i D Oooo ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 99 PCM370 Plant Condition Monitoring System AppendixIV Register Address for PT37X devices Register Register Channel Channel Address for Channel Channel Address for Device Device Property No Analog Property No Analog Channel Channel Channel 5 30006 Channel 5 Ea Channel 8 30009 Channel 0 30001 Channel 0 Channel 1 30002 Channel 1 E Channel 2 2 mm Channel 2 2 Channel 2 3 big 3 E Channel 3 Ma Channel 6 6 n 30007 Channel 6 6 Channel6 7 PT373 Channel 9 30010 em m Channel 11 1 Channel 11 12 cor e map Table4 Channel No and Register Address for PT37X devices iti NN PT371 Input Channel 11 11 n 30012 CEI Channel 15 15 me Channel 15 15 Channel S ie PT372 PT372 Channel 3 3 mmm Output Channel S 6 ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 100 PCM370 Plant Condition Mo
10. PCM370 Plant Condition Monitoring System Machine Train Name Mapped Device Un mapped Device DTHZO_101 Dewicel DTMIO Dewice3 DIM10_302 Devicel PTST1 Device In this window you are only allowed to view the mapping condition of DAQ devices the devices that have mapped the selected machine train and devices that haven t mapped any machine train but you can t change any information Map DAQ Device Channel Mapping is the process of linking a data source to a measurement point This process links a monitored location on a machine train with hardware device that is actually collecting the data NOTES For a measurement point to be described by measure data and status information should map the devices that can upload both measure data and status information Two channels are needed one is analog channel for getting measure data and another is digital channel for getting status information Bap DAQ Device Channel Ei Select Measurement Point ER Train Demo i Trainl Mapping ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 54 ave PCM370 Plant Condition Monitoring System evr Mapping button Select a measurement point from the list and Mapping button is activated Click this button to launch Map Channel Window x Machine Train Train Demo Machine men 101 Measurement Point Velocity Map Channel Select Device DTM20_101
11. Password Keyboard cme PCM370 RUN software and PCM370 CFG software share the same login account Enter user name and password in the related edit boxes Default User Name is administrator and Default Password is password If PCM370 RUN software is installed on Touch Panel computer you can click Keyboard button to open On Screen Keyboard Window You are recommended that do not close this window when PCM370 RUN software is running SS On Screen Keyboard l 10 x File Keyboard Settings Help E DEES x IEN TTET GETT Geo a w eT Ir eTiToTo T1 ooifond EC 7 9 3 ec e slalifofn i k i em it BISSONE RE o ot E ct The main window for PCM370 RUN software 1s below ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 69 PCM370 Plant Condition Monitoring System ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 70 PCM370 Plant Condition Monitoring System Machine Train List and Graphics View Machine Train List Train PT2060 eons Above picture displays Machine Train List in PCM370 RUN software Machine trains which are displayed in Tree View of PCM370 CFG software are also displayed in Machine Train List Light Color Indication v Green Normal Status v Yellow Alert Status v Red Danger Status v Flashing Alarm happened but hasn t been acknowledged Example I
12. RS232 RS232 RS232 to USB converter for Modbus connection RS485 USB RS485 to USB converter for Modbus connection with isolation PCM TOUCH Touch panel computer that works with PCM370 software PCM DPC Desktop computer that works with PCM370 software Troubleshooting No communication between Devices and Computer v Cables between devices and devices are well connected v Cables between devices and computer are well connected v computer COM is work well v COM parameters are correctly set ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 96 PCM370 Plant Condition Monitoring System Appendix I Ends contents for PT371 Tablet Ends contents for PT371 Function Function Function n End No o o Description Description Description Channel 1 Input e Channel 8 Input a Channel 15 Input a a a Channel 1 une Channel 8 e Channel 15 ua 2 16 30 Channel 2 GE B i Channel 9 nn ES Channel 16 ge Channel 2 Input Channel 9 Input Channel 16 Input b b b 5 Channel 3 we Channel 10 una x Signal Public Ends c Channel 3 nn Channel 10 ge Parameter Setup RS485 grounding 35 Digital signal Channel 4 Input si Channel 11 Input a a grounding Channel 4 Input Channel 11 Input 22 36 RS485 B b b Channel 5 Input Channel 12 Input 25 37 RS485 A a a Channel 5 Cnn Channel 12 nn 10 24 Channel 6 Wa Channel 13 una 24V Channel 6 nn Channel 13 nn 2
13. long before any maintenance bearing replacement needs to be considered High Pass Filter A filter having a single transmission band extending from some finite lower corner frequency defined as the point where amplitude is attenuated by 3 dB to infinite frequency or the upper frequency response limit of the transducer or instrument High Spot The term used to describe the response of the shaft due to imbalance force Itis the angular location on the shaft directly under the vibration probe when the shaft makes its closest approach to that probe Also the location on the shaft surface under a proximity probe when the 1X filtered vibration signal produced by the probe reaches its positive peak Hysteresis The difference in levels dead band between the trigger threshold and the reset designed to reduce false triggering Inertially Referenced ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 111 PCM370 Plant Condition Monitoring System Motion that is referenced to a mass whose inertia keeps it stationary yielding absolute motion Also describes a transducer with an internal inertial reference mass Influence Vector Used in balancing the 1X vibration response vector due to a calibration weight divided by the calibration weight vector at a particular shaft rotative speed The measured vibration vector divided by the unbalance force vector represents the rotor s transf
14. the detailed process is below Check bit3 in Definition field first then check Danger and finally check bit3 in Danger field When this bit returns 0 or False it means the status of this bit is normal when this bit returns or True it means the status of this bit is danger OK If you want to define a bit as OK status bit for example you want to set bit as OK bit the detailed process is below Check bit in Definition field first then check OK and finally check bit in OK field When this bit returns 0 or False it means the status of this bit is normal when this bit returns 1 or True it means the status of this bit is NOT OK BitDescription You can enter few words to describe this bit MeaningForFalse You can enter few words to describe the situation when the bit returns 0 or False MeaningForTrue You can enter few words to describe the situation when the bit returns 1 or True Trigger If you check trigger option of a bit when the bit returns 1 or True the machine train this channel maps will be triggered Channels that map the triggered machine train and are set Enable Dynamic Data ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 51 ave PCM370 Plant Condition Monitoring System ProvibTech La Collection will start dynamic data collection Especially for alert bit and danger bit the machine train also should be set Alarm Trigger on Dynamic Data
15. www provibtech com 124 PCM370 Plant Condition Monitoring System equipped with rolling element bearings and frame vibration measurements on reciprocating machinery It measures absolute vibration relative to free space Also see Seismic Transducer Vibration The oscillatory back and forth motion of a physical object Vibration Form The characteristics of vibration signals which may be observed on an oscilloscope Typical displays are timebase waveform and shaft Orbit See Orbit and Waveform Waterfall Plot Similar to Cascade plot except that one vertical axis is usually time instead of shaft rotative speed rpm See Cascade Plot Waveform A presentation or display of the instantaneous amplitude of a signal as a function of time A vibration waveform can be observed on an oscilloscope in the timebase mode Wobulator A mechanical device which generates dynamic motion of an observed surface at a known amplitude and frequency The surface is observed by a proximity probe for the purpose of calibration of a vibration monitor ProvibTech s TK3 2 incorporates a wobulator XY Orthogonal perpendicular axes in a Cartesian coordinate system Usually used as a reference for orthogonal mutually perpendicular radial vibration transducers Y represents the vertical axis and X represents the horizontal axis Zero to Peak Value One half of the peak to peak value See Amplitude REFERENCES 1 Dictionary of Instrumenta
16. Converter ftdiunin exe To CAWINDOWwS system32 f Click Finish to complete the installation ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 14 PCM370 Plant Condition Monitoring System Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finished installing the software for e USB Serial Converter Click Finish to close the wizard g After clicking Finish the Found New Hardware Wizard will continue by installing the COM port emulation driver The procedure is the same as that above for installing the serial converter driver Open the Device Manager located in Control Panel System then select the Hardware tab and click Device Manger and select Devices by Type from View menu The device appears as an additional COM port with the label USB Serial Port Device Manager File Action View Help e gt SQ d Computer ge Disk drives 3 Display adapters lA DYDICD 20M drives lE Floppy disk controllers lE IDE ATAJATAPI controllers Sai IEEE 13 Bus host controllers S Infrared devices Keyboards e Mice and other pointing devices Be Modems 2 Monitors Sai Network adapters PCMCIA adapters la Ports COM amp LPT Y USB Serial Port COMS SB Processo Sound video and game controllers System cevices Universa Serial Bus controllers UE EE EH HIE E ProvibTech Phone 1 713 830 7601
17. DAQ devices Calibration l sl select Device DTH20_101 Device0 Select Channel Sampling Value 1 jo Measurement Value 1 fo mu Refresh Sampling Value 2 2000 Measurement Value 2 12 5 mu 2 Refresh Modbus proportional range and full scale range are used in calibration The sampling value is related to Modbus proportional range and the measurement value is related to full scale range Modbus proportional range is configured by the related configuration software Take DTM20_101 Device0 as an example Modbus Proportional Range 0 2000 Full Scale high 12 5 mm s Full Scale low Omm s The calibration setting should be Sampling Value 1 0 Measurement Value 1 Omm s Sampling Value 2 2000 Measurement Value 2 12 5mm s The calibration process is below Step1 Select DTM20_101 Device0 and Channel Step2 Enter 0 in edit box of Sampling Value 1 and enter 0 in edit box of Measurement Value 1 And then click related Refresh button Step3 Enter 2000 in edit box of Sampling Value 2 and enter 12 5 in edit box of Measurement Value 2 And then click related Refresh button Step4 Click OK button The calibration process for channel0 of DTM_101 Device0 has finished If the device has several analog channels you should repeat step1 step3 to calibrate other analog channels ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 67 P
18. Fax 1 281 754 4972 sales provibtech com www provibtech com 15 PCM370 Plant Condition Monitoring System Installing PCM370 Put the installation CD into CD driver supposing that the CD driver is G and then double click file of Setup exe in directory of G PCM370 Setup to start this installation program 1 Show welcome information Click Next to continue Installing PCESTO Plant Condition Bonitoring System Welcome to the InstallShield Wizard for PCH370 The InstallShield Wizard will install POM 370 on your computer To continue click Next 2 Click Browse button to select a destination folder or use the default folder Then click Next to continue Installing FCESTO Plant Condition Monitoring System Choose Destination Location Select folder where Setup will install files Setup will install PCHA370 in the following folder To install to this folder click Next To install to a different folder click Browse and select another folder Destination Folder D Program Files ProwibT ech PCM ari Browse InstallShield i Cancel 3 Show current settings about copying files Click Next to continue ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 16 PCM370 Plant Condition Monitoring System Installing PCESTO Plant Condition Honitoring System i Start Copying Files Review settings before copying files installs niet 4 Show c
19. SASA Signal Input Voltage input 0 10 V 5V 5V Current input 4 20mA with the shut resistor Thermocouple or thermo resistor Discrete input any 0 20V 0 12V 0 5V TC K E S T N J B R EU 2 Compensation mode Inner Specify and Exterior RTD Pt100 Cu50 Cu100 BA 1 BA2 G SS S amp S amp e Se e BN SN Wire Unit 2 wires 3 wires Data acquisition rate 1 0sec Amplitude resolution v PT371 module 12 bit 0 2 FS Power supply 24VDC 10 150 mA Environmental ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 90 PCM370 Plant Condition Monitoring System KAS v Temperature 0 45 C v Humidity lt 85 RH Physical v Dimension 141mmx87mmx69mm v Weight 0 6Kg ra i Lea 7 O EEN EEN EE EE E E EE EE TF US q1 N gt LE9ESE PE SE ZE LE OF 6e BZ ZZ 92 GZ be E727 Le e TT PT371 ol 90 LI WE L 101 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 a O P0000000000000000000 4 D5 5 e Accessories v TM900 Power converter E mmm Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 91 ProvibTech ave PCM370 Plant Condition Monitoring System evr PT372 Current Output Module Features v A channel 4 20mA output module used with PCM370 system Specifications Communication Parameters Protocol
20. can drag it to inside direction Remove the linking line between machine and machine In above example we have linked DTM20_101 with DTM10_302 The line begins with DTM20_101 and ends with DTM10_302 Right click picture of DTM20_101 and then select Link Machine from drop down list Finally left click any place outside the picture of DIM10_302 Conti gue st ien H EI TCEITO Fleet Conditica Beni tee Tike Dew Lin Sete Bela Ga cant Praia boe ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 37 PCM370 Plant Condition Monitoring System Setup Menu Help System Setup In System Setup Window you can set unit and trend depth System Setup Trend depth is the maximum number of the points to generate a trend plot The maximum value is 2000 Machine Train Setup Machine Train Setup Window is used to add modify and delete machine train ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 38 PCM370 Plant Condition Monitoring System Bachine Train Setup Train Demo Modi Add button Click this button to add a new machine train Add Bachine Train Enter the name in the edit box and click Select Picture to specify a picture for this machine train Modify button Select the machine train from Machine Train List and then click this button to change machine train information You can chang
21. display maximum 16 channels trend plots If the channel number under the selected node exceeds 16 you should go to other page to view the additional trend plots History trend plot of a measurement point channel On bar graph page window double click bar graph of the channel to launch Diagram Selection window Check option of History Trend Plot and then click OK button ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 79 PCM370 Plant Condition Monitoring System Following picture shows you a history trend plot of a single channel 1 The title of the trend plot it shows the measurement point name plus channel name 2 It shows the measure value of the last sample and color indication for the channel s measure value 3 It shows the color indication for measure value of each status bit 4 It shows the trend plot for each status bit When the bit returns 0 the bit is in normal and when the bit returns 1 the bit is in abnormal 5 The yellow rectangle shows the measure value and collected time of the selected sample 6 It shows time slider date picker time picker and Refresh button You can use the time slider to change the time range of trend plot Also you can use date picker and time picker to change the time ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 80 PCM370 Plant Condition Monitoring System
22. feet per second per second ft s2 meters per second per second m s2 or more commonly g where g acceleration of earth s gravity 386 1 in s2 32 17 ft s2 9 81 m s2 Acceleration measurements are generally made with piezoelectric accelerometers and are typically used to evaluate high frequency machine casing or bearing housing response characteristics Accelerometer An accelerometer is an inertial transducer which converts the acceleration characteristic of vibration into a proportional electric signal Acceptance Region Trend information of the 1X or 2X vibration vectors amplitude and phase lag angle presented in polar format or the shaft average centerline position in Cartesian format The user defines the normal Acceptance Region for each shaft radial vibration or position measurement on the machine based on historical data for the machine under all normal operating conditions Some systems provide hardware and or software alarm Alert and Danger set point capability Alarm set points are set independently for maximum and minimum values of both amplitude and phase Acceptance Region information is the most important indicator of a shaft crack Aero derivative Aircraft jet engines that have been adapted and modified for industrial use Aliasing False frequency components caused by sampling a dynamic signal at too low a sampling frequency The sampling frequency must be at least twice the highest frequency of interest or
23. for PT371 if the number of the used channels is 16 the channel number should be set as 16 Add button Click this button to add a new device to PCM370 system ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 43 A PCM370 Plant Condition Monitoring System Add Device x Device Information Device Nane Doo O O Device No Bo Device Type Modbus TCP Client 7 Device Property DAQ Module x Channel Number De cane Enter information in the related edit boxes Select device type and device property For DTM PT580 DM200 and PT371 the device property should be set as DAQ Module and for PT372 the device property should be set as 4 20mA Current Output and for PT373 the device property should be set as Relay Module Modify button Select a device from the list and then click this button to launch Modify Device Information window In this window you are only allowed to change device name Bodify Device Information l x Device Information Device Name Device No E Device Type Modbus RTU d Device Property DAQ Module Channel Number Eoo ent Delete button Select a device from the list and then click this button If you are sure to delete this device please click Yes on the information window If you delete the device all data stored in the device is removed seng ed lj Confirm to delete this
24. from on line computerized monitoring systems typically representing the status of all measured variables monitors alarms and trends for a user defined time period usually the previous work shift or 24 hours Polarity In relation to transducers the direction of output signal change positive or negative caused by motion toward or away from the transducer in its sensitive axis Convention is that motion toward the transducer will produce a positive signal change Polar Format A graphical format consisting of a center reference point surrounded by concentric circles Vector information is graphed on this format by plotting magnitude vibration amplitude as the length of a radial line and phase vibration phase lag angle as the clock position of the line Polar Plot Polar format presentation of the locus of the 1X or 2X shaft vibration vector from a single channel as a function of shaft rotative speed The Polar Plot is generated by in phase and quadrature signals usually during machine startup or coast down transient operation This plot is sometimes incorrectly called a Nyquist Plot Preload A unidirectional radial side load due to external or internal mechanisms Categorized as a soft or hard preload A soft preload may shift in direction or magnitude and can act to stabilize or destabilize the dynamic condition of the machine A hard preload is usually fixed and acts to stabilize Prime Spike In the study of r
25. graph colors indication v Green Normal Status v Yellow Alert Status v Red Danger Status v Blue No measure value or background color v Flashing The channel has ever alarmed but the alarm event hasn t been acknowledged When the bar graph color of a channel keeps flashing you should click Acknowledge Confirm button on the window to acknowledge the alarm Channel Status Displaying ee TTT ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 73 PCM370 Plant Condition Monitoring System Only the channel that has mapped device digital channel can display channel status Left click bar graph of the channel status information tab pops up See below ox Car one ave CO Trem dh oFF car ox Do not forget the definition for each status bit When the value that is returned from the status bit changes the light color before this status bit changes too In PCM370 when the status bit returns 0 or False the color display green and when the status bit returns 1 the color display red For example you has defined status bit OK MeaningForFalse is described as OK and MeaningForTrue is described as NOT OK So if the light color shows red that means the status of OK bit is NOT OK Plots Displaying On the bar graph page window double click a bar graph Diagram Selection window pops up Diagram Selection NN EEGEN 8 2 H DH
26. mechanical motion into a proportional electronic signal typically a voltage proportional signal Transient Data Data static and or dynamic acquired under transient machine conditions startup and coast down Transient Dynamic Data Dynamic data acquired under transient machine conditions Typical transient dynamic data presentations include Polar Bode and Cascade See Dynamic Data and Transient Data Transient Static Data Static data acquired under transient machine conditions See Static Data and Transient Data Transient Vibration The temporarily sustained vibration of a mechanical system It may consist of forced or free vibration or both Usually transient vibration is associated with instantaneous changes in machine condition such as speed load etc Trend Data The periodic recording storage of static and or dynamic data for the purpose of observing changes as a function of time Trend data is the most fundamental level of information in any predictive maintenance program Trend Interval The time period between consecutive data points on a Trend Plot Trend Period The complete time frame beginning to end of data of a Trend Plot Trend Plot A presentation in Cartesian format or polar format of a plot with the measured variable versus time Trigger Any event which can be used as a timing reference A trigger for an oscilloscope will initiate the sweep of the beam across the face of the CRT A trigger signal
27. of acceleration yielded by the force of earth s gravity which varies somewhat with latitude and elevation By international agreement 9 8 m s2 386 in s2 32 17 ft s2 has been chosen as the standard acceleration due to gravity Gear Mesh Frequency A potential vibration frequency on any machine which contains gears It equals the number of gear teeth times shaft rotative speed Harmonics A series of vibration signal components whose frequencies are integer multiples of the fundamental or lowest frequency vibration component Harmonic Vibration Sinusoidal vibration with a single frequency component Heavy Spot A term used to describe the position of imbalance Itis the angular location of the imbalance vector the summation of the mass imbalance distribution at a specific lateral location in one plane on a rotor See High Spot Hertz Hz Unit of frequency measurement in cycles per second High Frequency For purposes of studying rolling element bearings a frequency range typically above 5 kHz used to measure the very high vibration frequencies associated with microscopic faults in bearing components While this technique may provide the earliest warning of impending bearing failure for some types of bearing faults there are several other machine malfunctions which can produce vibrations in this range e g cavitation rubs etc In addition the high frequency measurement technique sometimes provides warnings too early
28. operation you can select Backup DB from File menu ui Restore the current database file which is called Vibrate As an alternative to this operation you can select Restore DB from File menu LE Explorer from Edit menu Open Define PCM Explorer window As an alternative to this operation you can select Define PCM ch H Refresh PCM Explorer As an alternative to this operation you can select Refresh PCM Explorer F5 from User menu Edit picture for machine trains machines and measurement points As an alternative to this operation you can select Edit Picture from Edit menu P Display About PCM370 CFG Window As an alternative to this operation you can select About PCM370 CFG from Help menu ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 22 ave PCM370 Plant Condition Monitoring System File Menu PCESTO Plant Condition E File User Edit Setup Help Open DE Ctelt0 Backup DE Ctrl B Restore DB Ctrltk Delele DE Data Ctrltl Exit Open DB Use this command to select a specified path in which the pre defined database file Vibrate saves NOTES v Information about users machine trains machines measurement points and devices is saved in Vibrate v Only administrator and Super User can open backup restore and delete database S User can only open the database that records the user information of
29. particular machine or component system or subsystem at a specific point in time under specific machine operating conditions etc Often fails to include the basic signal measurement of phase Used for historical comparison of mechanical condition over the operating life of the machine Slow Roll Speed Low rotative speed at which dynamic motion effects from such forces as imbalance are negligible The speed at which shaft bow and runout can be measured Spall In rolling element bearings a flake or chip of metal removed from one of the bearing races or from a rolling element Spalling is evidence of serious bearing degradation and may be detected during normal bearing operation by observing increases in the signal amplitude of the high frequency or Prime Spike region vibration signals Spectrum Commonly a presentation of the amplitudes of a signal s components as a function of its frequency Spectrum Plot An XY plot in which the X axis represents vibration frequency and the Y axis represents vibration amplitude Stability of a Mechanical System Liapunoff Definition Stability In The Small A mechanical system is stable if external small perturbation of its regime will create a resultant small change of the previous steady state regime The perturbation can be introduced by applying an impulse force or changing the initial conditions of displacement and or velocity A system is asymptotically stable if small perturbation causes a deca
30. refer to page 40 of the User Manual 6 Add measurement points You can refer to page 41 of the User Manual 7 Map DAQ device to machine trains You can refer to page 53 of the User Manual 8 Map DAQ device channel to measurement point channel You can refer to page 54 of the User Manual 9 Set dynamic data collection conditions for machine trains You can refer to page 66 of the User Manual 10 Calibrate DAQ device channels You can refer to page 67 of the User Manual Continues the steps below if you system contains 4 20mA module and relay module Configure 4 20mA current output devices You can refer to page 58 of the User Manual Configure relay devices You can refer to page 60 of the User Manual O E 7T Po rGaAGDD i ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 8 PCM370 Plant Condition Monitoring System 11 Define PCM Explorer You can refer to page 29 of the User Manual 12 Edit picture for machines and measurement points You can refer to page 32 of the User Manual 13 Set system unit and trend depth You can refer to page 38 of the User Manual 14 Define custom trend plot type You can refer to page 63 of the User Manual 15 Quit from PCM370 CEG software 4 Run PCM370 RUN software Default user name administrator Default Password password For more detailed information about each step you should refer to the related chapte
31. seals Forced Vibration The response vibration of a mechanical system due to a forcing function exciting force Typically forced vibration has the same frequency at that of the exciting force Free Vibration Vibration response of a mechanical system following an initial perturbation change of position velocity or force Depending on the kind of perturbation the mechanical system responds with free vibrations at one or more of its natural frequencies Frequency The repetition rate of a periodic vibration per unit of time Vibration frequency is typically expressed in units of cycles per second Hertz or cycles per minute to more easily relate to shaft rotative speed frequency In fact since many common machine malfunctions produce vibration which has a fixed relationship to shaft rotative speed vibration frequency is often expressed as a function of shaft rotative speed 1X is a vibration with a frequency equal to shaft rpm 2X vibration is twice shaft rpm 0 5X is a frequency equal to one half shaft rpm etc Frequency Component The amplitude frequency and phase characteristics of a component of a dynamic signal Frequency Response ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 110 PCM370 Plant Condition Monitoring System The measured amplitude and phase response characteristics of a mechanical or electronic system with respect to frequency g The value
32. should not be used to describe a similar polar presentation of machine vibration vector data See Polar Plot Octave A 2 to 1 ratio between two frequencies An octave higher than some frequency F is 2F an octave lower is one half F 1X In a complex vibration signal notation for the signal component that occurs at the rotative speed frequency Also called synchronous 1 2X 1 3X 2 5X 4 9X ETC In a complex vibration signal notations for signal components having frequencies equal to fractions of rotative speed Also called sub harmonic and sub synchronous Optical Pickup A non contacting transducer which emits light from an internal infrared LED and detects the level of reflected light with a phototransistor The most common application of this pickup is as a temporary Keyphasor transducer observing a once per turn change in shaft reflectivity dark or light paint spot or small strip of highly reflective tape on the shaft ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 114 PCM370 Plant Condition Monitoring System Orbit The dynamic two dimensional path of the centerline motion of a machine component which is observed by XY transducers in the plane of those transducers When the transducers are XY shaft proximity probes it is the shaft centerline lateral vibration called precession Observed with an oscilloscope in the X versus Y mode Sometimes called orbital
33. susceptibility of a rotor system vibration response to an imbalance related exciting force when shaft rotative speed is equal to a rotor system natural frequency A calculation technique is similar to measuring the Q of a filter the center frequency divided by the bandwidth 1 e the balance resonance speed divided by the difference between the speeds at the 3dB amplitude values Caution should be used when applying this latter method because of the potential mechanical abnormalities of machinery vibration response In general a high synchronous amplification factor indicates low system quadrature dynamic stiffness whereas a low amplification factor generally indicates high system quadrature dynamic stiffness Due to several factors amplification factor measured during machine startup is different from that measured during coast down Also called machine Q synchronous amplification factor differs from non synchronous amplification factor by an amount related to the existence of a tangential force which depends on actual shaft rotative speed See Dynamic Stiffness Quadrature Amplitude The magnitude of periodic dynamic motion vibration Amplitude is typically expressed in terms of signal level e g millivolts or milliamps or the engineering units of the measured variable e g mils micrometres for displacement inches per second for velocity etc The amplitude of a signal can be measured in terms of peak to peak zero to peak root me
34. the custom trend type name is 31 characters Selected Channel This field lists the selected channels Channel Name You can change the name of the selected channel in this field by clicking the channel in Selected Channel List If you select a channel from Available Channel list and click lt lt to move it to Selected Channel the full name of the selected channel will be displayed in this field Maximum length of the channel name is 9 characters If the channel name length exceeds 9 characters PCM370 will automatically throw off the part that exceeds 9 characters and save the anterior 9 characters as the channel name PCM370 CFG xX The length of channel name is too large Maximum length of the channel name is 9 characters Example to add a new trend plot type Step1 Select the machine train Step2 Select the channel in the Available Channel list and click lt lt to add this channel to Selected Channel list You can change the name in edit box of Channel Name You should control the length of the channel name in 9 characters Step3 Repeat Step and Step until you add all the channels you want Step4 Enter the name for the new custom trend plot type in edit box of Trend Plot Type Step5 Click OK Modify button Select the custom trend plot type in Custom Trend Setup window and then click Modify button ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 64 a
35. the highest frequency component in the signal This effect can be eliminated by adjusting the sampling frequency or using a low pass filter on the signal prior to sampling ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 102 PCM370 Plant Condition Monitoring System anti aliasing The primary disadvantage of anti aliasing as 1s the case with virtually any type of filtering is that phase and amplitude errors are incurred Alignment The positioning of machine components bearings rotors casing foundation piping etc with respect to each other for efficient transfer of power Various alignment requirements utilize different techniques of cold and hot machine measurement including optical mechanical dial indicators electronic proximity probes and laser Amplification Factor Non synchronous A measure of the susceptibility of a rotor system vibration response to a non synchronous harmonic exciting force at a rotor system natural frequency Synchronous amplification factor differs from non synchronous amplification factor due to the existence of destabilizing tangential forces which depend on shaft rotative speed At high rotative speeds these destabilizing factors cause a decrease in system quadrature dynamic stiffness and result in a non synchronous amplification factor higher than the synchronous amplification factor Amplification Factor Synchronous A measure of the
36. this user v Forthe administrator and Super User if file Vibrate is saved in path of E ProvibTech PCM370 they should select the path as E ProvibTech PCM370 Vibrate Please choose the path of the database file lS MSN Gaming Zone i E National Instruments i ef NetMeeting of Online Services ae Dj Outlook Express 3 Fl ProvibTech SACH Web Publish PREC indama Media Plawer n Backup DB Use this command to backup the current database Select Backup DB from File menu and then select a backup path See below e ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 23 PCM370 Plant Condition Monitoring System Browse For Folder J x Please choose the backup path of the database File EJ Desktop My Documents E A My Computer A 344 Floppy A S Local Disk CC Se Local Disk Ds 9 ModbusTCPServer E DI ProvibTech D PCM360 s Local Disk ge 7 z Set Local Disk Fs c DYD CD RW Drive 6 5 In precondition that you are an administrator or a super user if you select a directory of D ProvibTech PCM370 this database file will save as E ProvibTech PCM370 Vibrate Restore DB Use this command to restore the current database to a backup database Select Restore DB from File menu and then select a path in which the pre defined database file is saved If there is a vibrate file under
37. trend plot type named DTM and you should select DTM R from the menu to view real time trend plot of custom trend type DTM Following picture shows you the real time trend plot of custom trend type DTM DTM R ST lt 1A Q D Real time trend plot of a node in Tree View Firstly select the node If the node is a machine train you should select the machine train in Machine Train List If the node is a machine you should select the machine train in Machine Train List and then click picture of this machine in Graphics View If the node is a measurement point you should select the machine train in Machine Train List and then in Graphics View double click picture of the machine which the selected measurement point belongs to and finally click picture of the measurement point Secondly click Trend Plot on the main window and a menu pops up ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 78 PCM370 Plant Condition Monitoring System _ IG RR For example you select Train Demo on Machine Train List and click Trend Plot on main window Below is the pop up menu you should select Train Demo R Following picture shows you the real time trend plot of the Train Demo ect e ei e 1 4 4 l i i a n E gt i i i E Fi 4 bd 4 11 28 2008 15 31 49 11 28 2008 15 32 43 Trend plot A trend plot page window can
38. 281 754 4972 sales provibtech com www provibtech com 12 PCM370 Plant Condition Monitoring System Load USB RS232 or USB RS485 Converter driver For Window XP a Connect the device to a spare USB port on your computer Windows Found Hardware Wizard will be launched Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for current and updated softwere by looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission Read our privacy policy Can Windows connect to Windows Update to search for software O Yes this lime only O Yes now and every time connect a device No not this time Click Next to continue b Select No not this time from the options available and then click Next to proceed with the installation Found New Hardware Wizard This wizard helps you install software for USB lt gt Serial Cable If your hardware came with an installation CD lt 6 or floppy disk insert it now What do you want the wizard to da O Install the software automatically Recommended Install from a list or specific location Advanced Click Next to continue c Select Install from a list or specific location Advanced as shown above and then click Next In below window select the proper option according to instruction in the window And then click Next button Pro
39. 30 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 18 PCM370 Plant Condition Monitoring System Add or Remove Programs E D x Ka amp Currently installed programs I Show updates Sort by Name x Change or i Remove B FTDI USB Serial Converter Drivers Programs 5 Intel R 845G Chipset Graphics Driver Software Size 2 24MB bk 5 IVI Shared Components 15 Microsoft NET Framework 2 0 Size 88 36MB Add New Programs G3 Microsoft Office Professional Edition 2003 Size 371 00MB Tia Microsoft SQL Server 2000 Size 118 00MB Add Remove Microsoft Visual Studio 6 0 Enterprise Edition Size 279 00MB Windows Components ZE Microsoft Web Publishing Wizard 1 53 National Instruments Software Size 7 20MB e fey PCM360 DAQ amp amp COM Size 0 84MB Set P eg SS Bici PCM360 Database Manager Sha 0 80MB 7 PCM360 Display Size 117 00MB i PCM370 Size 0 85MB To change this program or remove it from your computer click Change Remove Change Remove 5 PL 2303 USB to Serial Size 1 04MB gH PT2060 CFG Size 0 79MB Click OK button in following picture Confirm File Deletion i s x Do you want to completely remove the selected application and all of its components Show uninstalling status window Uninstalling PCM370 Plant Condition Monitoring System Setup Status HU M20 Setup is performing the requested operations Uninstalling 4956 Installshield C
40. 485 Data Bit 8 bits Stop Bit 1 bit Parity Bit None Available Baud Rate 1200 2400 4800 9600 19200 38400bps Available Slave Address 1 32 Xx amp N e amp amp _ Ze Power supply v 24VDC 10 150 mA Relays v Seal epoxy v Capacity 0 5A 230VAC 30VDC resistive load v Relay type SPTD v Isolation 1000VDC Environmental v Temperature 0 45 C v Humidity lt 85 RH Physical v Dimension 141mmx87mmx69mm v Weight 0 6 Kg ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 94 PCM370 Plant Condition Monitoring System 144 ra Le I l p0000000000000000000 i 1 N LE9EGE VE CE ZE LE OF 62 8 LZ 92 GZ He Ez zz Le 7 a ct Ken C E 70 U _ 0102030405 06 07 08 09 1011 12 13 1415 1617181920 Q je90009000090000000000 Q SD Accessories v TM900 Power converter ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 95 ave PCM370 Plant Condition Monitoring System evr PCM370 Maintenance System Accessories PT371 Input module 16 channels multiple input modules voltage input current input RTD digital input relay PT372 4 20mA output module 4 channels with a 4 20mA output module PT373 relay module 16 channels relay module DTM96 RS485 to RS232 RS485 RS422 converter with signal isolation for Modbus connection
41. 4V SR lo WW ae _ SSES Channel 7 Input Channel14 Input 14 28 b b ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 97 PCM370 Plant Condition Monitoring System Appendix Il Ends contents for PT372 Table2 Ends contents for PT372 ProvibTech Function Function Function End No End No End No Description Description Description oo 8 ran Relay 1 Output A n n i D SS E KSE E _ a ef pe e po ae e 3 rae Digital Signal Grounding Relay 3 Output B 20 34 Parameter Setup RS485 Grounding Relay 4 Output Group 1 Analog i I 7 Digital Signal A Signal Output a Grounding Relay 4 Output Group 1 analog S S RS485 B signal output b Relay 5 Output Group 2 analog d j RS485 A signal output a _ 5 gt Group 2 analog L signal output b Relay 6 Output Group 3 analo d i i i N 24V signal output a Relay 6 Output Group 3 analo d S S S L 24V signal output b ER 7 Mi Group 4 analog Je Relay 7 Output Group 4 analog t mamn 98 Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com PCM370 Plant Condition Monitoring System AppendixIII Ends contents for PT373 Table3 Ends contents for PT373 Function Function Function End No End No End No l Description Description Description 8 e 1 ran re oo 8 ran ER 0 15 ea a O 1 i e e 8 gt nr e 15 iene nr e 2 ran N e 9 ran po ne 16 n e 2 gt
42. A measurement of the axial position of the machine casing relative to a fixed reference usually the foundation The measurement is typically made with an LVDT installed on the foundation at the opposite end of the machine from the point where the casing is attached to the foundation Changes in casing axial position are the result of thermal expansion and contraction of the casing during startup and shutdown The measurement is usually incorporated as part of a TSI system Center Frequency For band pass filters the arithmetic center of a constant bandwidth filter or the geometric center midpoint on a logarithmic scale of a constant percentage filter Channel A transducer and the instrumentation hardware to display its output signal Cold Water Stands An arrangement of piping and brackets installed along a machine foundation for hot alignment measurements Proximity probes observe exposed shaft areas or targets on the machine casing from brackets through which water circulates This provides a thermally stable reference for the alignment measurement Communications Processor An interface module used in an on line monitoring system to communicate data from the monitor rack to the computer ProvibTech Communications Processors include Dynamic Data Manager steady state static data and steady state dynamic data Transient Data Manager steady state transient static data and transient dynamic data and Process Data Manager process variable
43. CM370 Plant Condition Monitoring System Help Menu Help Help Topic About PCMSTO CFo Help Topic Show online help of PCM370 CFG software You also can open the window by pressing F1 on Keyboard E PCM370 CFG Software Help l 0 x wE BE g gt H A amp Hide Locate Back Forward Stop Refresh Home Print Options PCM370 Introduction Contents Search Favorites PCM370 Installation PCM370 CFG Software Operation CONTENTA Introduction Features About PCM370 CFG Display Copyright Company Name Software Version and Creator information of PCM370 CFG x DCH Copyright iC 2007 ProvibTech 370 POM3T0 Plant Condition Monitoring System Configuration Ver 2 1 Build Serial 17AT Created by BWH Bamboo LG LI LIC MEM WED ZHJ E ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 68 PCM370 Plant Condition Monitoring System PCM370 RUN Software Operation Start PCM370 RUN software NOTE Exit from PCM370 CFG software before you run PCM370 RUN software PCM370 CFG software and PCM370 RUN can t run at the same time There are two methods to run PCM370 RUN software Method 1 Double click shortcut icon of PCM370 RUN on the desktop Method 2 Select Start All Programs PCM370 PCM370 RUN Kei PCBSTO User Login X o Proviblech PCHSTO Run Ver 2 1 hare e Teri User Name administrator
44. Collection Setup Window Show in Graph If you check a bit in Show in Graph field and the current digital channel has mapped the analog channel the bit information will be displayed on bar graph and trend plot window NOTES It s special for all devices of ProvibTech that are monitored by PCM370 v Only three bits can be identified by PCM370 system Alert Danger and OK v Bitl should set as OK bit2 should set as Alert bit3 should set as Danger bit4 should set as Bypass bit5 should set as Trip Multiply bit6 should set as OFF bit7 should set as GAP OK x Channel Property Analog Channel Setting Digital Channel Setting Definition M Alert M Dangers M OK Channel Description Trigger rShow in Graph BitDescription MeaningForFalse MeaningForTrue M biti C biti C biti biti fox oma fox Mbii bit Mbit2 bit2 C bit2 Cbit2 falert Normal en bitz W bit2 M bits C bits bits C bits Danger Normal Daner W bits bit3 M bit4 Cbitd Cbitd C bit4 Bypass Normal Bypass Mbit4 bitd V bits C bits C bits C bits trip Multiply Normal Trip Multiply bit5 MW bit5 V bit C bite C bit6 bit OFF Normal OFF Vv bits V bit Mbit C bit C bit Cbitt cap ox normal canoro bitt bit I bit8 bare bite bite bit8 I bit9 C bit9 Cbit9 C bit9 kon False I bitio C bitio C bitio C bitio bito False M peu C b
45. Define PCM Explorer from Edit menu The machine train that contains the deleted node is still listed in Selected Machine Train List x Selected Machine Train Available Machine Train Step2 Left click Train Demo in Selected Machine Train List and click gt gt to move it to Available Machine Train List And then click OK button Step3 Repeat Step1 ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 31 PCM370 Plant Condition Monitoring System Define FCR Explorer i x selected Machine Train Available Machine Train Step4 Left click Train Demo in Available Machine Train List and click lt lt to move it to Selected Machine Train List Finally click OK button Edit Picture This command is used to edit pictures of machines and measurement points in your PCM370 system With this command checked you can change picture location of machines and measurement points on Graphics View zoom in or zoom out the machine pictures link machine and machine as well as machine and measurement points Following lines give you an example to show how to use this command and what functions this command provides Below table gives the relationship between machine train machine and measurement point After you finished adding Train Demo DTM20_101 Velocity and Displacement you should select Define PCM Explorer from Edit menu and display Train Demo in your PCM Explorer The PCM Expl
46. Device0 Select Channel Channel X Ie E Channel Y Ineffectiwe Select Device Display all DAQ devices that are mapped with the selected machine train Select Channel Display all analog channels under the selected DAQ device Channel X Display the name of device and channel that is mapped with channel X of the current measurement point If no channel is mapped it will show Ineffective Channel Y Display the name of device and channel that is mapped with channel Y of the current measurement point If no channel is mapped it will show Ineffective lt lt left shift button gt gt right shift button Example for Channel Mapping Mapping Demands Train Demo DTM20_101 Velocity Channel X maps DTM20_101 Channel 0 and Channel 1 Moreover Channel 0 is an analog channel and Channel 1 is a digital channel Step1 Select DTM20_201 Device0 from list Channel 0 is displayed in the channel list ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 55 PCM370 Plant Condition Monitoring System DTIN20_101 Device0 Step2 Click Channel 0 and Channel X Ineffective at the same time and then click lt lt Now Channel X Ineffective changes to Channel X DTM20_101 Channel 0 E EE pe DTH20_101 Device0 si DTH20_ 101 Channel 0 Step3 Double click Channel X DTM20_101 Channel 0 Mapping Di
47. Modbus RTU Serial Interface RS485 Data Bit 8 bits Stop Bit 1 bit Parity Bit None Available Baud Rate 1200 2400 4800 9600 19200 38400bps Available Slave Address 1 32 re e Pr Amplitude resolution v PT372 module 12 bit Power supply v 24VDC 10 100 mA Maximum load 750 ohms Environmental v Temperature 0 45 C v Humidity lt 85 RH Physical v Dimension 141mmx87mmx69mm v Weight 0 6 Kg ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 92 PCM370 Plant Condition Monitoring System 0000000000000 00000 i 1 N LE 9 GE VE CE ZE LE OF 62 87 LZ 92 GZ HZ EZ ZZ IZ cif E a 20 LJ _ 0102030405 060708 09 101112131415 1617181920 J P0000000000000000000 A LI J Accessories v TM900 Power converter _ ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 93 PCM370 Plant Condition Monitoring System PT373 Relay Module Features v A 16 channel relay module designed for the PCM370 system output for alarm outputs v PT373canbe configured for any logic combination of alarms or status of each channel from PCM370 system v The relays are selectable as energized de energized latching non latching and bypass Specifications Communication Parameters Protocol Modbus RTU Serial Interface RS
48. Normal Trip Multiply bit5 V bit5 bite C bite C bite C bite OFF Norma PFF bite MW bit l bit C bit C bit C bit foit fase fire A e M bit IT bit8 C bite C bite bite 8 alse fire Mbit M bits I bit9 C bito C pita C bito re bito V bito bitio C bit10 C bit10 C bit10 True M biti M bitii l bitil C bitii C bitii C bit five E boai Z bitli l biti2 C bit12 C bit12 C bit12 five E bai M biti2 I bit13 C biti3 C bit13 C bit13 fire E e M biti3 bitid bitid bitid biti ire bitia MW bitid I biti5 bitis bitib bitib E biti M bitis I biti6 biti biti bitie TC biti M biti Definition For a digital channel maximum 16 status bits are allowed to define If you want to define a bit of the digital channel you should check the check box before this bit in Definition field Alert If you want to define a bit as Alert status bit for example you want to set bit2 as Alert bit the detailed process is below Check bit2 in Definition field first then check Alert and finally check bit2 in Alert field When this bit returns O or False it means the status of this bit is normal when this bit returns 1 or True it means the status of this bit is alert Danger If you want to define a bit as Danger status bit for example you want to set bit3 as Danger bit
49. Quick Start Guide NOTE You are recommended to read Important glossary defined in PCM370 on User Manual before using this Quick Start Guide 1 System Wiring Wire you PCM370 system You can refer to Field Wiring Diagram on page 10 of the User Manual 2 PCM370 Installation 1 Install PCM370 software on the computer You can refer to page 16 of the User Manual 2 If your system uses USB RS232 Converter you should install USB RS232 Converter driver on the computer and if your system uses USB RS485 Converter you should install USB RS485 Converter driver on the computer You can refer to page 13 of the User Manual 3 System Configuration 1 Run PCM370 CFG software Default user name administrator Default Password password 2 Add devices You can refer to page 42 of the User Manual For DAQ devices such as DTM PT580 DTM200 that upload both measure value and status information you should set the channel number two times as the actual number of the used channels For DAQ devices such as PT371 that only upload measure value you should set the channel number equaling the actual number of the used channels For other 4 20mA such as PT372 and relay such as PT373 devices you should set the channel number equaling the actual number of the used channels 3 Configure channels of DAQ devices You can refer to page 49 of the User Manual 4 Add machine trains You can refer to page 38 of the User Manual 5 Add machines You can
50. S EE 18 PCM370 C FO Software Operation eene 21 Start PEM 70 ELE 21 d Reie e EE 22 bili 23 KEE 23 Bn Bc nn 23 Rebibbia 24 IRAK 25 Elea 26 User Management sla 26 RECON PRO E 28 BS SS CVE Te pa og NATIA IE 28 COCO o RO E A E II 29 Eege 29 Dente RE 29 Delano tirannia ig ona I A 30 UA GE EE O 32 SLA E 38 E SI E E E OT 38 Mac mne Tipi 38 Maene E 40 ege 41 Device Mafia Sent nanna oriali 42 CABG eegene ee 49 ee Eeer 53 Map DAQ Device E 54 4 20mA Module SC D 58 Relay Module Sel p ecis aine aE aaae E E aE aE A DETASARE 60 Custom THe TAG Sep PARE ROSARIA RR RS E A 63 Dynamic Data Collection Setup 66 CIO PR Ce RO RR e SE 67 OVE RR I 68 Hoop ira lar et 68 ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 2 A bOULFEND E 68 PCM370 RUN Software Operation RR E I 69 Sta POMS 0 RUN EE 69 Machine Train List and Graphics ViCw siae 71 Ba Ga ee iaia 73 rie RN E E RO E T IO A T 76 01048 5 OR RE A 84 09 RR 87 PETR eebe geegent 89 Acknowledge Alari lena opa 89 H EE 89 eben Tai M ol as zessmascaantern in EE ET E 90 Ee 90 Pool i ala 90 CO ROERO 91 EECHELEN 92 EU PREGO RIA 92 Pee O er peered ern E ETE E E E E E E E E S 92 AS iii 93 Rokr na 94 EHE RIA 94 EE 94 ENEE 95 PEM SU Ta Ch AN Ee 96 Dy SE Mi ACCESS OMICS ira 96 DP RUNG ee iis 96 Appendix Ends contents for PTS 71 sc 0ssse0cinsssseneodsesenverasssasnncdnesssnanbines satancedeseabnoiiiosdnaveweadvaus
51. The practice of using electronic circuitry to arithmetically subtract suppress the amplitude of an unwanted signal noise It is not recommended for vibration measurement and or monitoring because most noise sources are vector not scalar ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 121 PCM370 Plant Condition Monitoring System quantities Sweep Frequency Filter A type of bandpass filter which is automatically swept tuned through a frequency range of interest An instrument which incorporates this type of filter can be used to generate a vibration frequency spectrum A change in the frequency content of the measured signal during the time required to sweep through the frequency range will cause the spectrum to smear Swirl Ratio See Fluid Circumferential Average Velocity Ratio Synchronous The component of a vibration signal that has a frequency equal to the shaft rotative frequency 1X Thermocouple A temperature sensing device comprised of two dissimilar metal wires which when thermally affected heated or cooled produce a proportional change in electrical potential at the point where they join Threshold The level at which a trigger or other function is initiated Timebase Plot A presentation of the instantaneous amplitude of a signal as a function of time A vibration waveform can be observed on an oscilloscope in the time domain Torque A meas
52. alues And it is used as a measure of amplitude For sine wave RMS equals 0 707 x Peak 0 707 1 square root of 2 Work Frequency Please enter actual running speed of the machine the current channel maps Full Scale High Full Scale Low Please enter maximum and minimum value of full scale range Full scale range defines the entire span of the data to be displayed A larger range can accommodate a wider set of data values AG 1111rP lt emeoan gt rG roGnn lt F9 i ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 50 PCM370 Plant Condition Monitoring System Danger High Danger Low Alert High Alert Low For channel type of Acceleration Velocity and Vibration from Prox two alarm levels are supported For channel type of Process four alarm levels are supported Digital Channel Setting Tab x Channel Property Analog Channel Setting Digital Channel Setting Definition M Alert M Danger MV OK Channel Description Trigger rShow in Graph BitDescription MeaningForFalse MeaningForTrue M biti C biti C biti biti pk foma bam K r MW bitl V bit2 bit2 Cbit2 C bit2 falert nomat Jet Mbit V bit2 bits bits bits Cbits Danger Norm Daner M bit3 V bit3 M bitd C bitd C bit4 C bitd Bypass lorma Bass bit4 M bitd V bit5 C bits C bits C bits Trip Multiply
53. an square or average Amplitude and Phase Versus Time APHT An acronym used to describe the trend plot of plot vibration amplitude and phase data This data may be presented in both Cartesian and polar formats Commonly used for 1X 2X and nX vibration data Anti aliasing Filter A low pass filter which is used to eliminate false frequency components from the spectrum of a digitally sampled signal See Aliasing Anti Swirl ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 103 PCM370 Plant Condition Monitoring System A technique used in fluid handling machines to decrease or prevent the development of fluid circumferential flow around the rotor in bearings and seals and to improve rotor stability Asynchronous or Non synchronous Vibration frequency component which is different than shaft rotative speed Sometimes used to mean any vibration frequency which is not an integer multiple or fraction of rotative frequency See Synchronous Attitude Angle The included angle between the direction of the vector sum of all the unidirectional steady state radial loads Preloads on a rotor and a line connecting the bearing and shaft centers Sometimes confused with Rotor Position Angle since the preload historically and incorrectly was considered to be primarily gravity on horizontal machines See Rotor Position Angle and Eccentricity Ratio Average Average An amplitude detec
54. ancel If you see Locked File Detected window in the process of copying files see below picture please check option of Don t display this message again ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 19 PCM370 Plant Condition Monitoring System Locked File Detected x An option you selected requires that files be installed to or uninstalled from your system or both A locked file CAWINDOWS system3e meyvert dl was found while performing the needed file operations To leave this file as ibis on your system click the Ignore button to retry the file operation click Retry or to perform the operation when pour system is rebooted click Reboot And then click Ignore button See below Locked File Detected 4 x An option you selected requires that files be installed to or uninstalled from your system or both A locked file CWINDOWS sustem32 mevcrt dl was found while performing the needed file operations To leave this file as it is on your system click the Ignore button to retry the file operation click Retry or to perform the operation when pour system is rebooted click Reboot Un installation process completes Click Finish Uninstalling PCM370 Plant Condition Monitoring System Maintenance Complete InstallShield Wizard has finished performing maintenance operations on POM ZU Back Eancel GE S5 E EEE ELGE W
55. and then select Rename from Edit menu Rename window is launched Enter the new name for the selected node and finally click Train Demo As an alternative to this operation you can right click this node in the tree view and then select Rename from drop down menu Rename Delete EAA DTM10_302 GZ Fran NOTE After you finish the operation of renaming you should select Refresh PCM Explorer from User menu to refresh the current PCM Explorer Define PCM Explorer Usually there are several machine trains monitored by PCM370 system but you may be only concerned about some machine trains so it s no need for you to know the running status of all machine trains In this l ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 29 PCM370 Plant Condition Monitoring System condition you can use Define PCM Explorer command to select the machine trains you are concerned about and add them in your PCM Explorer Below is the Define PCM Explorer Window x Selected Machine Train Train Demo Train Demol Selected Machine Train List the machine trains that will be displayed on the current PCM Explorer Available Machine Train List the machine trains that are monitored by PCM370 System but haven t been selected to the current PCM Explorer lt lt Left shift button gt gt Right shift button Delete This command 1s used to delete a machine train o
56. as the measure value uploaded from DAQ device When the measure value calculated by PCM370 RUN software isn t the same as the measure value uploaded from DAQ device it may cause the color indication is not consistent with the measure value shown on bar graph ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 15 PCM370 Plant Condition Monitoring System Trend Plot PCM370 RUN software display two types of trend plots real time trend plot and history trend plot Moreover PCM370 RUN supports displaying trend plot of a measurement point channel a custom trend plot type and a node in Tree View for real time and history trend plot Following figure shows you the detailed classification of the trend plot Real time trend plot History trend plot History trend Real time Real time i History tend plot of a node trend plot of a trend plot of a plot of a mesuenent custom trend Teas Ue Ment point channel plot type point channel Real time trend plot of a measurement point channel On bar graph page window double click bar graph of a channel to launch Diagram Selection window Check option of Real Time Trend Plot and then click OK button LT x Cancel Following picture shows you a real time trend plot of a selected measurement point channel ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 76
57. ate recorder XK NN NNN NSN Print any viewing window 3 Measurement range v Acceleration pk or RMS 0 20g v Velocity pk or RMS 0 200 mm sec 0 8 in sec v Displacement pk pk 0 100 mm 0 4 in 4 Units of measurement v Peak v Peak to peak v RMS v Average 5 Route can be configured to three hierarchy layers v Machine train v Machine v Measurement point ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 6 PCM370 Plant Condition Monitoring System D Storage and network databases v ProvibTech s database 7 Data storage capacity v Limited by hardware storage capacity v Unlimited by software 8 Routing capacity Unlimited in machine train machine and machine point 9 Modbus interface v Works with all ProvibTech s digital monitors PT2060 DTM DM PT580 PT371 PT372 and PT373 v Works with any other vendors Modbus RTU 10 Bar graph v Bach channel accepts up to 16 status parameters such as OK Alert Danger Trip multiply etc This information is user configurable 11 Printer support Each graph can be printed Running Environment Minimum system requirement Operation System Windows XP or Windows2000 CPU P4 2 0 GHz Memory 512MB Hard Disk 40G Display VGA or Touch Panel ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 7 PCM370 Plant Condition Monitoring System PCM370
58. ating machinery design A tool for selecting and checking shaft operational rotative speeds and other possible forcing function frequencies against the spectrum of natural frequencies to avoid resonances The X axis represents the various possible excitation frequencies 1 e rotative speed 1X ol whirl 40 48X blade or vane passing frequencies gear mesh frequencies etc The Y axis represents the lateral and torsional natural frequencies The term is sometimes used incorrectly to describe the Cascade Plot and Waterfall Plot See torsional vibration Cartesian Format ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 105 PCM370 Plant Condition Monitoring System A rectangular graphical format consisting of a vertical Y axis and a horizontal X axis This format is used to graph the results of one variable as a function of another e g vibration amplitude versus time trend amplitude versus frequency spectrum and nX amplitude versus shaft rotative speed Bode Cascade Plot A graph in Cartesian format displaying amplitude versus frequency spectra at series shaft rotative speeds Shaft rotative speed and amplitude are usually presented on two separate vertical axes Frequency is measured on the horizontal X axis This data format is used to evaluate the change in vibration frequency characteristics during machine transient conditions See Waterfall Plot Casing Expansion
59. ator periphery in the direction of shaft rotation divided by shaft rotative speed Lambda times rotative speed is the angular velocity at which the fluid force rotates Sometimes this is used as the ratio of oil fluid whirl frequency to rotative frequency approximate value Fluid Induced Instabilities Rotor self excited lateral vibrations whirl and whip due to fluid solid interaction in bearings seals and other cylinder within a cylinder parts of a machine Whirl causes the shaft dynamic motion to be forward and circular or elliptical and at a frequency proportional to shaft rotative speed The vibration frequency of whirl is a function of the fluid circumferential average velocity in the bearing seal or rotor periphery Typically whirl for bearings varies from 0 3X to 0 49X Gust less than one half of shaft rotative speed Whip occurs when whirl vibration frequency approaches a rotor system s natural frequency most often the rotor first balance resonance The mechanism is not limited to oil lubricated bearings but can occur when any fluid e g oil steam process gas etc is enclosed within a small clearance area between two body surfaces one of which is rotating and dragging the enclosed fluid into circumferential rotation While the fluid average frequency is then usually below half rotative speed changes may occur when the fluid is tangentially accelerated for instance due to recirculation or decelerated such as in anti swirl
60. ave Modbus interface Any other manufactures Modbus device can integrate with the PCM370 CFG Status and running data are configured according to user requirements 3 Machine graphical interface The PCM370 CFG provides a library of machine photos or user may import images which can be used for the machine status display 4 The following are configurable v Data mapping by machines ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 5 PCM370 Plant Condition Monitoring System Trend history chart list recorder Trend real time Alarms with PT373 mapping 4 20mA with PT372 mapping Software program runs on PCM370 TOUCH or any standard PC SUS PCM370 RUN software The user interface that displays the machine condition graph is included in the PCM370 RUN Data is obtained from ProvibTech s database 1 Hardware interface v ProvibTech s digital monitors Modbus RTU v Other manufactures equipment Modbus RTU capable devices v RTU thermocouple inputs v Current and voltage inputs 2 Standard condition monitoring plot Machine train graphical interface with real time status Machine graphical interface with real time measurement point overall and status Trend plot of history data with single or multiple points up to 100 per data series Real time alarms alarm list Real time overall vibration and status table view Bar graph of 24 channels Real time trend plot simul
61. ay device is a Normally De energized Relay NDE you should keep this option un checked Relay types Normally Energized Relay NEI Normally De energized Relay NDE Latching Check this option to set the relay latching If a relay is set with latching the relay will hold the alarm state contain danger and alert both until it is reset For example in normal condition when channel expression returns or True the relay alarms If the relay is set latching and it alarmed this relay will keep the alarm state even if the current channel expression returns 0 or False Bypass If you check this option the alarm state contain danger and alert both of this relay is inhibited That means the relay expression will always return 0 or False and this relay will never alarm Alarm Delay Set delay time for each alarm ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 60 Output hardware switch status Last status Alarm No Reset Current status No Alarm Wie OI Last status Alarm No Reset Current status No Alarm Nu NI EZE w 4 FE EN es TT E a CH EC C ITF Relay Channel Expression Setting Display and set logical output expression for each relay channel And amp Or I Not Operators Alarm Selection Button Click this button to select channel alarm level Select a DAQ device first and select a device channel and
62. cally presented in various forms of trend plot and displays lists of current values Examples of static data include vibration amplitude phase lag angle frequency average shaft position shaft rotative speed time date monitor alarm and OK status Steady State Data Data static and or dynamic acquired from a machine at constant shaft rotative speed Steady State Dynamic Data Dynamic data acquired under steady state machine conditions Typical data presentations include orbit timebase and spectrum This data can be instantaneously trended See Dynamic Data and Steady State Data Steady State Static Data Static data acquired under steady state machine conditions Example shaft centerline position See Static Data and Steady State Data Strain Gauge A transducer which reacts to changes in strain typically through changes in resistance Stress A force acting on a body e g shaft per unit area Usually measured in terms of lbs in 2 or Newton meter 2 Sub harmonic Sinusoidal component of a vibration signal that is a sub multiple integer fraction of a fundamental frequency Sub synchronous Component of a vibration signal which has a frequency less than shaft rotative speed Super harmonic Sinusoidal component of a vibration signal that is an integer multiple of a fundamental frequency Super synchronous Component of a vibration signal which has a frequency greater than shaft rotative speed Suppression
63. chart recorders or a microprocessor based monitoring data acquisition system 2X 3X ETC In a complex vibration signal notation for signal components having frequencies equal to exact multiples of shaft rotative speed Also called harmonic super harmonic and super synchronous Unbalance Unequal radial mass distribution on a rotor system a shaft condition where the mass centerline principal inertial axis does not coincide with the geometric centerline Also the effective mass that causes rotor vibration Valve Position A measurement of the position of the process inlet valves on a machine usually expressed as a percentage of the valve Opening zero percent is fully closed 100 percent is fully open The measurement is usually made with an LVDT and is incorporated as part of a TSI system Vane Passing Frequencies A potential vibration frequency on vaned impeller compressors pumps and other machines with vaned rotating elements It is represented by the number of vanes on an impeller or stage times shaft rotative speed Vector A quantity which has both magnitude and direction For a vibration vector magnitude is expressed as amplitude displacement velocity or acceleration and direction as phase lag angle degrees For example the 1X vibration vector measured at shaft operating speed e g for balancing purposes will be described as a magnitude mils or micrometres acting in a particular direction degrees The vecto
64. d Measurement Point Setup Measurement Point Setup Window is used to add modify and delete measurement point Beasurement Point Setup x H Train Demo Modify Delete Add button ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 41 PCM370 Plant Condition Monitoring System Select a machine from the list and then click this button to add a new measurement point under the selected machine Enter the name in the edit box and then click Select Picture to specify a picture for this new measurement point Add Heasurement Foint X Measurement Point Information Measurement Point Name Picture Path select Picture Modify button Select the measurement point from the list and then click this button to change information name or picture of this measurement point Bodify Beasurement Foint yg X Measurement Point Information Measurement Point Name RSS Picture Fath Select Picture Delete button Select the measurement point from the list and then click this button to directly delete this measurement point from PCM370 system NOTE Picture only by format of bmp is valid Device Management Use this command to launch Device Management window In this window you can add new devices change device properties and remove devices from PCM370 system ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sale
65. data Constant Bandwidth Filter A band pass filters having a fixed frequency bandwidth regardless of center frequency Constant Percentage Filter A band pass filters whose bandwidth is a fixed percentage of the center frequency Also called constant Q filter Critical Machinery That group of rotating equipment which is absolutely necessary to a major part of the plant process When critical machinery is not operating that part of the process is not operating Machines in this category are usually un spared and are typically monitored continuously Critical Speed s GE ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 106 PCM370 Plant Condition Monitoring System In general any shaft rotative speed which is associated with high dangerous level vibration amplitude Often critical speed is used to describe a shaft rotative speed equal to a rotor system natural frequency This is more correctly called a balance resonance speed Critical Speed Map An XY Cartesian diagram used in rotating machinery design as a tool to approximate the effect of changes in bearings supports and pedestal designs on system natural frequencies The X axis represents bearing stiffness and the Y axis represents rotor system natural frequency Cross Axis Sensitivity The ratio of change in the signal output to an incremental change in the input along any axis perpendicular to the sensitive axi
66. device ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 44 ave PCM370 Plant Condition Monitoring System evr Extended Definition button Select a device from the list and then this button is enabled For devices with different types clicking this button will launch different windows If the device type is Modbus RTU the window is below Channel Definition and COM Setting Channel Definition COM Selection Slave Address l i Ee Channel No tute Scan Connection Testing Channel Definition Double clicking a channel following dialog box pops up Type the proper register address and description words And then click OK button Channel No o Address 30501 Description analog Slave Address A field which allows multiple devices to share the same computer These devices would be connected to the same COM port but would be distinguished by their individual slave address Slave Address is always set by the related configuration software of this device Channel No Display channel No Address The register address indicates the location in the device where the status and data is read Please refer to Appendix IV and Appendix V of this book to get the channels register address of different devices Description Short words to describe this channel COM Selection Select an available COM port first Setup Butt
67. e the machine train name or picture Bodify Hachine Train ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 39 eave PCM370 Plant Condition Monitoring System Delete button Select the machine train and then click this button to directly delete this machine train from PCM370 system NOTE Picture only by format of bmp is valid Machine Setup Machine Setup Window is used to add modify and delete machine x H Train Demo Modify Delete Add button Select a machine train from the list and then click this button to add a new machine under the selected machine train Enter the name for this machine and then click Select Picture to specify a picture for this machine Add Machine X Machine Mame Picture Fath select Picture Modify button ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 40 eave PCM370 Plant Condition Monitoring System evr Select the machine from the list and then click this button to change machine information name or picture Hodify Machine j xj Machine Mame Picture Fath select Picture Delete button Select the machine and then click this button to directly delete this machine from PCM370 system NOTES v Maximum 8 machines are allowed to add under a machine train v Picture only by format of bmp is vali
68. er function If the description of the influence vector contains the shaft rotative speed term and the radius at which the calibration weight is placed on or removed from the rotor the influence vector is the inverse of the synchronous dynamic stiffness vector See Influence Vector Direct and Influence Vector Longitudinal Influence Vector Direct An influence vector where the measured vibration vector and the unbalance force vector are at or near the same plane along the rotor axis Influence Vector Longitudinal An influence vector where the measured vibration vector and the unbalance force vector are at different longitudinal planes along the rotor axis Integrator An electronic circuit that converts a velocity signals to a displacement signal or converts an acceleration signal to a velocity signal Isotropic Supports Rotor support systems that provide uniform dynamic stiffness in all radial lateral directions Keyphasor Pulse That change in the output signal of the Keyphasor Transducer caused by the Keyphasor Event Keyphasor Transducer A transducer that produces a once per shaft turn voltage pulse called the Keyphasor signal This signal is used primarily to measure shaft rotative speed and as a reference for measuring vibration phase lag angle It is an essential element in measuring rotor slow roll bow runout information The Keyphasor transducer is typically a proximity probe recommended for permanent installations i
69. evice Server Port The port that is used by TCP Client and third part TCP Server to communicate with each other Connection Testing Button Before click this button please ensure that you have finished settings on client device channel and server Clicking this button PCM370 will automatically test the communication between the client and server The communication result will be launched then ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 48 PCM370 Plant Condition Monitoring System Channel Setup Use this command to configure channel information of DAQ devices Eege OO x KSE Channel No Channel Description Channel Property Es Channel analog Channel Channell Digital Channel E Select Device Display all DAQ devices in PCM370 system Channel Definition button Select a DAQ device and a channel of this device And then click this button to launch Channel Definition Windows Analog Channel Device Name Display the device name Channel No Display the channel No Channel Name Display the channel name User can enter few words to describe the selected channel ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 49 ave PCM370 Plant Condition Monitoring System ES Channel Property There are two available options Analog Channel and Digital Channel Analog Channe
70. ew the alarm status of the machine train machine and measurement points ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 4 PCM370 Plant Condition Monitoring System PCM370 Introduction Introduction PCM370 is a plant condition monitoring system that collects stores analyzes and distributes the machinery status monitoring information It can obtain status data of critical machinery All of ProvibTech s digital monitoring systems can be quickly and easily integrated into the PCM370 system as well as devices from other manufactures which communicate via Modbus Besides the vibration monitoring data the PCM370 is also capable of collecting numerous process variables such as voltage inputs RTDs thermocouples discrete inputs and Modbus Features v Integrate all of machine running monitoring data into one system Measures static variables and process variables Integrates process inputs User friendly system with touch panel ProvibTech s database Software alarms used for indication of machine status Data collection done automatically or with alarm Ss SS Se e S Modbus data collection and storage PCM370 CFG software 1 Automatic configuration All ProvibTech s digital monitors can be configured by the PCM370 CFG Only a couple clicks of the mouse to setup DTM PT2060 PT580 DM200 PT371 SU SOS 2 Ability to interface with other devices which h
71. f the light color before a machine train shows Green and it keep flashing that means the current status of the machine train is in normal but this machine train has ever alarmed and the alarm hasn t been acknowledged yet Graphics View Graphics View displays two types of view the one is view about pictures of machine and machine beneath the selected machine train another one is view about pictures of machine and measurement points that belongs to this machine Color Indication for picture status bar v Green The related machine or measurement point is in normal status v Yellow The related machine or measurement point is in alert status v Red The related machine or measurement point is in danger status v Flashing The alarm happened on the selected machine or measurement point but it hasn t been acknowledged ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 71 PCM370 Plant Condition Monitoring System Selecting a machine train from Machine Train List you will see view about machines under this machine train See below Double clicking a machine picture in above picture view about the machine and the related measurement points is shown See below The machine picture is located on the center of Graphics View as a certain size If you want to back to the Graphics View about machines you should click Return on main window
72. fects but excludes any significant frequency components due to internal bearing defects Typically this frequency range is from one fourth times shaft rotative speed 1 4X to approximately three times shaft rotative speed RTD An acronym for Resistance Temperature Detector a sensor which measures temperature and change in temperature as a function of resistance RUB Machine malfunction consisting of contact between the rotating and stationary parts of a machine involving friction impacting and changes in system stiffness Runout Compensation Electronic correction of a transducer output signal for the error resulting from runout See Nulling Scale Factor The change in output per change in input sensitivity of a transducer Also the factor by which a signal must be increased or decreased to meet the input requirements of an instrument Seismic Transducer Any vibration transducer which measures the absolute vibration of an object Accelerometers and velocity transducers measure absolute vibration typically of machine housing or structures and thus are both referred to as seismic or inertial transducers Sensitivity The ratio of the change in the output to a change in the input A typical sensitivity for a proximity probe transducer is 200 millivolts per mil 7 84 volts per millimetre Shaft Average Centerline Plot Transient or trend plot of the shaft average radial centerline position within the bearing clearance p
73. ferings include on line and periodic monitoring systems and diagnostic instruments systems which provide information for operations personnel plant engineers and rotating machinery specialists including overall values trends correlation of performance related variables steady state dynamic data and transient dynamic data ROMIS is applicable to transducer and monitoring systems diagnostics and test equipment and Services Root Mean Square RMS Square root of the arithmetic average of a set of squared instantaneous values Used as a measure of amplitude rms equals 0 707 x peak sine wave only 0 707 1 squareroot 2 See Amplitude Rotor Position Angle ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 118 PCM370 Plant Condition Monitoring System The angle between an arbitrary reference through the center of a bearing typically vertical down in a horizontal machine and the line connecting the bearing and shaft centers measured in the direction of rotor rotation Used to indicate the presence of abnormal preloads on a machine but NOT the stability of the rotor bearing system See Attitude Angle Rotor Vibration Region As applied to the study of rolling element bearings using either bearing housing transducers or the ProvibTech REBAM system a low pass frequency range which includes vibration signals of the principal frequency components due to rotor rolling element de
74. for a digital vector filter is a Keyphasor pulse which serves to align the center frequency of the band pass filter to shaft rotative speed It provides a reference from which to measure shaft rotative speed 1X amplitude and phase lag angle Trip Multiplier That function provided in a monitor system to temporarily increase the alarm Alert and Danger setpoint values by a specific multiple usually two or three This function is normally applied by manual operator action during startup to allow a machine to pass through high vibration speed ranges without monitor alarm indications Such high vibration speed ranges may include system resonances and other normal transient vibrations Also called set point multiplier TSI Acronym for Turbine Supervisory Instrumentation A TSI system is a continuous monitoring system generally used on turbogenerator sets It can include such measurement parameters as shaft radial vibration shaft absolute vibration axial position differential expansion case expansion valve position eccentricity peak to peak zero speed and shaft rotative speed The system may also include a vector filter which measures vibration phase lag angle for each vibration frequency ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 123 PCM370 Plant Condition Monitoring System The TSI system consists of measurement transducers monitors interconnecting wiring and usually strip
75. gital Channel window is launched Bapping Di gital Channel pel Step4 Check option of Enable Mapping Digital Channel in the window Select DTM20_101 Device0 and click Channel 1 Finally click OK button ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 56 PCM370 Plant Condition Monitoring System Bapping Digital Channel DIMZ0 101 Devicel e Channell ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 57 PCM370 Plant Condition Monitoring System 4 20mA Module Setup 4 20 mA Module Setup Window is used to configure 4 20mA output modules 4 20 mA Module Setup i Ei d 20n Device PT372 Deviced Channel Selection Channel No Map Channel Channel Un Mapped Channell Un Mapped Channel Un Mapped Channel Un Mapped Calibration Numerical Data For Start Current 0 Start Current o TA Refresh 0 UA Numerical Data For End Current End Current o Refresh Mapping Status Description Mapped The 4 20mA device channel has mapped the analog channel of DAQ device Un mapped The 4 20mA device channel hasn t mapped the analog channel of DAQ device Question The 4 20mA device channel has ever mapped the analog channel of DAQ device but the mapped analog channel does not already exist now The possible situations are the mapped analog channel is changed to digital cha
76. hanical system complemented by the dynamic effects of mass and damping which act against an applied dynamic force to limit vibration response Dynamic Stiffness Direct The component of mechanical system Dynamic Stiffness consisting of modal mass stiffness and cross couple damping terms which collinearly opposes the applied force Dynamic Stiffness Quadrature The component of a Dynamic Stiffness mechanical system Dynamic Stiffness in a fluid environment consisting of 1 the viscous damping the reaction of the fluid when the shaft presses on it and 2 the fluid wedge support term the reaction of the shaft when the fluid pushes on it The latter is cross coupled stiffness tangential force component Quadrature dynamic stiffness acts perpendicularly to the applied force 90 degrees out of phase ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 108 PCM370 Plant Condition Monitoring System Eccentricity Mechanical The variation of the outer diameter of a shaft surface when referenced to the true geometric centerline of the shaft Out of roundness See Mechanical Runout Eccentricity Peak to Peak The measurement of shaft bow at slow roll speed The shaft bow may be due to 1 fixed mechanical bow 2 temporary thermal bow or 3 temporary bow due to any sort of sag or bow at rest sometimes called gravity bow Eccentricity Ratio Average A dimensionless quantity re
77. hase A technique which measures the phase difference between vibration signals of a chosen single frequency at different longitudinal locations on a rotor system It is used for location of the source of instability The vibration signal whose phase leads all others usually indicates the transducer location closest to the source of the instability Direct Data Data or a signal which represents the original transducer signal Sometimes called unfiltered raw all pass or overall data or signal Displacement ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 107 PCM370 Plant Condition Monitoring System The change in distance or position of an object relative to a reference Machinery vibration displacement is typically a peak to peak measurement of the observed vibrational motion and is usually expressed in units of mils or micrometres Proximity probes measure displacement directly Signal integration is required to convert a velocity signal to displacement Dual Path A signal conditioning technique used in vibration monitors whereby a single transducer input is processed through two separate signal conditioning paths in the monitor Each signal conditioning path can have its own engineering units of measurement e g displacement and velocity optional filtering alarm set points and displays Dual Probe A transducer set consisting of a proximity probe and velocity transduce
78. ion you can view trend plots of several channels on a window This function helps you compare data from different channels Custom Trend Setup f x Trend Type Name Number of Selected Channels Modify Delete Trend Type Name Display the name of a custom trend type Number of Selected Channels Display total number of the channels that are contained in a custom trend type Add button Click this button to add a new custom trend type NOTE Maximum 8 custom trend plot types can be added Each custom trend plot type can contain maximum 16 channels Add Trend Plot Type E ES Trend Type Name Select Machine Train Train Demo nl Selected Channel Available Channel Train Demo DTM20_101 Vel Train Demo DTM10_ 30 Dis Train Demo PT3T1 TRA102 Train Demo PT5T1 DTH10 3 Train Demo PT3T1 DTM20_ 1 Train Demo PT3T1 THO16 F Channel Name ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 63 PCM370 Plant Condition Monitoring System N Select Machine Train Display the machine trains that are displayed on PCM Explorer of the current user Available Channel If you select a machine train measurement point channels that have been mapped under the machine train are listed lt lt Left shift button gt gt Right shift button Trend Type Name In this field you should enter the name for the new custom trend type Maximum length of
79. isplacement with DTM10_302 The result after the operations is below ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 35 PCM370 Plant Condition Monitoring System Beaty TT Step5 After you finish all operations above you should select Edit Picture from Edit menu again to make the command unchecked NOTES All operation below is in condition of Edit Picture command from Edit menu is checked Zoom in and zoom out machine pictures Condition 1 Double clicking a machine picture will display Graphics View of machine and the related measurement points The machine picture will be shown in middle of Graphics View and is magnified to a certain size Double clicking this machine picture again will restore the machine picture to original size Coli cur stice 8 aija PORITO Fleet Condition TTT Pila Dew Dit Get Bela nai An x Ten Bona ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 36 PCM370 Plant Condition Monitoring System Condition 2 Left click a machine picture and rest your mouse pointer on the edge of this picture if you see the straight double arrow you can drag this picture to zoom in or zoom out it You can drag the picture from four sides of this picture up down left and right If you want to zoom in the picture you can drag it to outside direction and if you want to zoom out the picture you
80. itii C bitii C bitir bitti falso M bit12 C bit12 C bit12 C bit12 biti2 False I bit13 C bitia C bit13 C bitia bitis False M bitia C bitia C bitia C bitia bitta False I bit15 C bit15 C bitis C bitis bitis False l biti6 C bitie C biti C bitie bitie False fre bits M bite fre bits M bits fre bito M bitii fire E VV bitli frue bo M biti fme i T bor M bitia re bitis M biti fre bitis M bitis ires bitig M bitis A A an S Bit1 OK When it returns 0 or False the bit status is normal When it returns 1 or True the bit status is NOT OK Bit2 Alert When it returns 0 or False the bit status is normal When it returns or True the bit status is Alert Bit3 Danger When it returns 0 or False the bit status is normal When it returns 1 or True the bit status is Danger Bit4 Bypass When it returns 0 or False the bit status is normal When it returns or True the bit status is Bypass Bit5 Trip Multiply When it returns 0 or False the bit status is normal When it returns or True the bit status 1s Trip Multiply Bit6 OFF When it returns 0 or False the bit status is normal When it returns 1 or True the bit status is OFF Bit7 GAP OK When it returns 0 or False the bit status is normal When it returns 1 or True the bit status is GAP NOT OK
81. l is used to upload channel measure value and Digital Channel is used to upload channel status information Sampling Frequency It s the sampling frequency for PT370 RUN software to read device channel data Enable Dynamic Data Collection If you check this option and the machine train this device channel mapped is set Trigger Mode when this machine train is triggered the device channel will start dynamic data collection Analog Channel Setting Tab Channel Property Analog Channel Setting Digital Channel Setting Full Scale Range Setup Channel Type Velocity DI Full Scale High 12 5 mm s Full Scale Low fo mm s Measurement Unit mm s ne Alarm Range Setup Measurement Type PK bs Danger High fo mare Alert High H mm s Work Frequency 3000 RPH f Alert Low Fs mm s V Enable Alarm Trigger Danger Low Fio mm s Channel Type Display type of transducer the selected channel maps There are four available options Acceleration Velocity Vibration from Prox and Process Measurement Unit Select an appropriate measurement unit for the variable Measurement Type There are four available options PK PK PK RMS and AVER v Dk Zero to peak value It is one half of the peak to peak value v PK PK Peak to peak value It is the difference between positive and negative extreme values of a signal v RMS Root Mean Square It is square root of the arithmetic mean of a set of squared instantaneous v
82. lant process Many of these machines operate in tandem or spared installations Balance Resonance Speed A shaft rotative speed or speed region which equals a natural frequency of the rotor system When a rotor accelerates or decelerates through this speed region the observed vibration characteristics are 1 a peak in the 1X Amplitude and 2 a more rapid change in the 1X vibration phase lag angle Balancing ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 104 PCM370 Plant Condition Monitoring System Adjusting the radical mass distribution of a rotor so that the mass centerline principal inertia axis approaches or coincides with the rotor rotational axis This reduces the 1X lateral vibration of the rotor and the forces on the bearings due to imbalance inertia forces Band Pass Filter A filter that has a single transmission band extending from a non zero lower corner frequency to a finite upper corner frequency The corner frequencies are the frequencies on either side of the center frequency where the amplitude is attenuated by 3dB At the center frequency the signal amplitude is not attenuated Bandwidth The span between the corner frequencies of a band pass filter Normally expressed in terms of frequency for constant bandwidth filters and as a percent of the center frequency for constant percentage constant Q filters See Band Pass Filter Blade Passing Frequency
83. m list page can contain maximum 50 alarm events Alarm list of a node Firstly select the node If the node is a machine train you should select the machine train in Machine Train List If the node is a machine you should select the machine train in Machine Train List and then click picture of this machine in Graphics View If the node is a measurement point you should select the machine train in Machine Train List and then in Graphics View double click picture of the machine which the selected measurement point belongs to and finally click picture of the measurement point Secondly click Alarm List on the main window For example you select Train Demo on Machine Train List and click Alarm List on main window The time range window is launched Time range 11 14 2008 11 21 2008 11 14 2008 15 52 54 Select the time range and then click OK button If you want to view all alarm events under the selected node you should check Total alarm list and then click OK button If you want to view alarm events in ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 85 PCM370 Plant Condition Monitoring System certain time range you should check Partial alarm list and set the start time and ending time and finally click OK button Following picture shows you the alarm list in the selected time range of Train Demo f em 2007 10 18 1640 41 0 Danger Dange
84. motion or Lissajous presentation Outer Race For rolling element bearings a generally cylindrical component which is positioned between the rolling elements and the bearing housing Peak to Peak Value The difference between positive and negative extreme values of an electronic signal or dynamic motion See Amplitude Period The time required for a complete oscillation or for a single cycle of events The reciprocal of frequency Periodic Vibration Oscillatory motion whose amplitude pattern repeats in time Perturbation Application of a forcing function to a system by means of an external device in order to study the system characteristics Also called excitation Perturbation Technique A part of modal testing A method of identifying the dynamic characteristics of a mechanical system rotors in particular by comparing a known input force to the measured response The perturbation force may be at any frequency including shaft rotative frequency as in the case of unbalance and zero frequency zero speed as in the case of a steady state load The perturbation force may be applied in one direction only unidirectional or in two directions simultaneously as in the case of a circular or elliptical force If the non synchronous perturbation force is applied to the rotating shaft in two axes simultaneously it may be forward in the direction of shaft rotation or reverse against the direction of rotation Direct perturbation
85. n in vibration mode along the shaft axis Modulation Amplitude AM The process whereby variation in the amplitude of a vibration signal results in modulation of the amplitude of a carrier signal AM is used when high frequency signal recordings are needed 1 e gear mesh AM tape recorders also called direct have a finite lower frequency response above zero dc Hertz They capture dynamic data above the lower response frequency but not the average shaft position data dc voltage which is available from a proximity probe signal Modulation Frequency FM The process whereby variation in the amplitude of a vibration signal results in a variation a carrier frequency FM tape recordings have a low frequency response down to dc zero Hertz This allows recording of proximity probe dc gap voltages which represent average shaft position Narf ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 113 PCM370 Plant Condition Monitoring System Acronym for Natural Axial Resonant Frequency usually refers to ax1ally compliant couplings Natural Frequency The frequency of free vibration of a system The frequency at which a lightly damped system will oscillate upon momentary displacement from its steady position by a transient force The natural frequencies of a multiple degree of freedom system are the frequencies of the normal modes of vibration See Resonance Nodal Point Node A
86. n which the probe observes a physical gap change event an optical pickup used for temporary installations in which the pickup observes a change in reflectivity event or a magnetic pickup Keyphasor is a ProvibTech registered trademark Linearity Calibration The closeness of a calibration curve to a specific straight line expressed as the maximum deviation of any calibration point on a specified straight line in any one calibration increment Load Zone An angular region around a rolling element bearing where there is maximum compressive force between the shaft and the outer race of the bearing Probes for bearing activity measurement REBAM would normally be placed in this zone for best or most sensitive measurements Also the direction of steady state load on any including fluid film bearing Normal load can result from the force of gravity for horizontal machines gear mesh forces fluidic forces etc Low Pass Filter ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 112 PCM370 Plant Condition Monitoring System A filter having a single transmission band extending from zero frequency or the lower frequency response limit of the transducer or instrument to some finite upper corner frequency defined as the point where amplitude is attenuated by 3 dB LVDT Acronym for Linear Variable Differential Transformer A contacting displacement transducer consisting of a m
87. ndow of the selected measurement point channel ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 8 PCM370 Plant Condition Monitoring System Status list of a node Firstly select the node If the node is a machine train you should select the machine train in Machine Train List If the node is a machine you should select the machine train in Machine Train List and then click picture of this machine in Graphics View If the node is a measurement point you should select the machine train in Machine Train List and then in Graphics View double click picture of the machine which the selected measurement point belongs to and finally click picture of the measurement point Secondly click Status List on the main window For example you select Train Demo on Machine Train List and click Status List on main window Following picture shows you status list window of Train Demo T7L DTMI0 M2 PTI7I OTM20_191 CA PTI7I TMDOIG_1L CWIA ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 88 ave PCM370 Plant Condition Monitoring System evr Reset Relay Click Reset Relay on the main window to reset all relays in PCM370 system Acknowledge Alarm Click Acknowledge Alarm on the window to acknowledge the alarm in the related machine train There are three Acknowledge Alarm buttons in PCM370 RUN software They are respectively desig
88. ne 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 83 PCM370 Plant Condition Monitoring System Alarm List PCM370 RUN software display two types of alarm list alarm list for a measurement point channel and alarm list for a node Alarm list of a measurement point channel On bar graph page window double click bar graph of the channel to launch Diagram Selection window Check option of Alarm List and then click OK button Diagram Selection x Cancel In Time range window below you should select the time range and then click OK button If you want to view all alarm events under the selected measurement point channel you should check Total alarm list and then click OK button If you want to view alarm events in certain time range you should check Partial alarm list and set the start time and ending time and finally click OK button Following picture shows you the alarm list in the selected time range of the current measurement point channel ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 84 PCM370 Plant Condition Monitoring System Danger Danger Danger Aen Danger Danger Alen Danger Aen Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Alert Danger Danger Each alar
89. ned on main window bar graph window and real time trend plot window Three buttons work the same If the machine train is set the Alarm Trigger function by PCM370 CFG software when the first alarm happens on this machine train DAQ channels which are mapped with the machine train and which are set Enable Dynamic Data Collection function will automatically start dynamic data collection If you didn t acknowledge the alarm this time when the alarm happens next time the DAQ channels won t start dynamic data collection The un acknowledged alarm will cause the color flashing on the picture of related machine train machine and measurement point Help Show online help of PCM370 RUN software E PCM370 RUN Software Help 20 x s A o 60 i fh g Hide Locate Back Forward Stop Refresh Home Print Options Contents Search PCM370 Introduction SEI lo one Gr PCM370 Installation GC DC MA KUN Software Operation CONTENTS Introduction Features ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 89 PCM370 Plant Condition Monitoring System PT371 Input Module Features v 16 channels input module Specifications Communication Parameters Protocol Modbus RTU Serial Interface RS485 Data Bit 8 bits Stop Bit 1 bit Parity Bit None Available Baud Rate 1200 2400 4800 9600 19200 33400bps Available Slave Address 1 32 XK LA
90. nitoring System Appendix V Register Address for other Modbus based Devices TableS Register Address for other Modbus based Devices Register Address for Register Address for E RODE Analog Channel Digital Channel 30501 10139 DM200 Input 10147 ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 101 PCM370 Plant Condition Monitoring System AppendixVI Glossary This glossary is a partial list of terms and definitions used in the field of rotating machinery measurement monitoring and analysis These definitions are not universal but are expressed in the context of this specialized field In some instances ProvibTech Corporation has redefined terms from other technical fields for its own purposes Many definitions cross reference terms that may be found elsewhere in the Glossary If a term is highlighted click on it once use the left mouse button to view its definition in a popup box click again to return Alphabetical Index Abbreviations Absolute Vibration Vibration of an object as measured relative to an inertial fixed reference frame Accelerometers and velocity transducers measure absolute vibration typically of machine housings or structures thus they are referred to as seismic transducers or inertial transducers Acceleration The time rate of change of velocity For harmonic motion this is often expressed as g or a Typical units for acceleration are
91. nnddecvawsentnstivasiiendsevesbboanadsesusinns 97 Appendix I Ends contents for PT372 onssas osiavses ninia v ana ONE ANSEES VEASE EESE r SSRN A ASN NaN 98 Appendix Il Ends contents Tr PTI oa 99 AppendixIV Register Address for PT37X devices 100 Appendix V Register Address for other Modbus based Devices 101 REENEN 102 ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 3 PCM370 Plant Condition Monitoring System Important glossary defined in PCM370 Analog Channel A type of channel to get device channel measure data Digital Channel A type of channel to get device channel status information PCM Explorer The PCM Explorer is a presentation of the currently selected route about machine train machine and measurement point The PCM Explorer contains Tree View and Graphics View Tree View It is the tree type listing of the components in the PCM370 CFG software to display the route of three hierarchy layers Machine train Machine and Measurement point Node It is the general description for the item in the Tree View to indicate a Machine train a Machine or a Measurement point Graphics View It is a type of picture view in PCM370 CFG software and PCM370 RUN software to display pictures of machine train machine and measurement points In Graphics View you can view real time measure value of each measurement point channel and you can also vi
92. nnel the DAQ device that contains the mapped analog channel is deleted Map Channel button Select a 4 20mA device and a channel under this device and then click Map Channel button x Channel Name Channe10 DAQ Device DTH20_101 Device0 Channel No Channel Name Channel ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 58 PCM370 Plant Condition Monitoring System You can change name of this 4 20mA device channel by entering the new name in edit box of Channel Name Selecting a DAQ device all analog channels under this device is listed Click this channel and then click OK to finish the mapping Channel 4 20mA Calibration Take PT372 as an example Numerical data range is 0 2000 and current output range is 4mA 20mA The calibration process for a PT372 device is below Stepl select the device and a mapped channel xl 4 20m4 Device PT372 Device4 DI Channel Selection Channel No Name Mapping Status EH Happed Un Mapped Map Channel 1 Channell 2 Channel2 Un Mapped 3 Channel Un Mapped Calibration Numerical Data For Start Current Start Current fi D Refresh Numerical Data For End Current D D End Current DA UA Refresh cancel Step2 Enter 0 in Numerical Data For Start Current edit box and enter 4000 in Start Current edit box Click the related Refresh bu
93. of the rotating shaft by a rotating force input of known force amplitudes phase and frequency across ranges of all of these while measuring the motion response vectors of the rotor system at the same frequency can yield the meaningful dynamic stiffness of a rotor system This methodology can be applied for identification of nonlinear non symmetric and discontinuous systems A gong test impulse test may yield some basic simple data A unidirectional swept sine perturbation applied to the support system is an improvement over the gong test Swept sine input to the rotor by a known displacement is another improvement but the readout must be the response force vector which is very difficult to instrument accurately Phase Lag Angle The timing relationship in degrees between two vibration signals or a Keyphasor pulse and a vibration signal also the phase difference between two signals such as the input force signal and output response signal The lag corresponds to minus in mathematical formulations Piezoelectric ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 115 PCM370 Plant Condition Monitoring System Any material which provides a conversion between mechanical and electrical energy For a piezoelectric crystal if mechanical stresses are applied on two opposite faces electrical charges appear on another pair of faces Plant Summary Report Information available
94. olling element bearings a frequency range which encompasses as a minimum the primary bearing fault frequencies and harmonics Probe Gap The physical distance between the face of a proximity probe tip and the observed surface The distance can be expressed in terms of displacement mils micrometres or in terms of voltage millivolts Standard polarity convention dictates that a decreasing gap results in an increasing less negative output signal Probe Specifically a proximity probe transducer although sometimes used to describe any transducer Probe Orientation The angular location of a probe with respect to a polar coordinate system when viewed from the driver end of the machine Typically zero degrees are at top dead center vertical or at the horizontal right 3 o clock position on the coordinate system Proximitor ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 116 PCM370 Plant Condition Monitoring System A ProvibTech signal conditioning device which sends a radio frequency signal to an eddy current proximity probe demodulates the probe output and provides output signals proportional to both the average and dynamic probe gap distances Also called an oscillator demodulator Proximitor is a ProvibTech registered trademark Proximity Probe A non contacting device which measures the displacement motion and position of an observed surface relative to the probe mo
95. on Click this button Select proper communication parameters and click OK ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 45 PCM370 Plant Condition Monitoring System ICON Setting Click Restore to Default button to set communication parameters to default value Auto Scan button 1 Before you click this button you should ensure that device slave address and channel register address are correctly set 2 Click this button to automatically test the communication between software and hardware device The communication parameters will be refreshed after the scanning Connection Testing Button Before you click this button you should ensure that device slave address and channel register address are set correctly Click this button and Communication window is launched Communication Port List the available COM ports on local computer ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 46 PCM370 Plant Condition Monitoring System Auto by left hand Mark it and PCM370 will automatically scan the available COM port on local computer Manual by left hand Mark it and select a COM port Auto by right hand Mark it and PCM370 will automatically scan the proper communication parameters Manual by right hand Mark it and manually configure the communication parameters Auto Search Button Click this button to start
96. opying status window Setup Status Installs mei If you see Locked File Detected window in the process of copying files see below picture please check option of Don t display this message again Locked File Detected ma i And then click Ignore button See below ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 17 PCM370 Plant Condition Monitoring System Locked File Detected sl An option you selected requires that files be installed to or uninstalled from your system or both A locked file O Prograrn Files ProvibTech FCH 370 dilModbusDewice dl was found while performing the needed file operations To leave this file as itis on pour system click the Ignore button to retry the file operation click Retry or to perform the operation when pour system is rebooted click Reboot 5 Installation complete Click Finish Installing FCESTO Plant Condition Bonitoring system InstallShield Wizard Complete Setup has finished installing POM 370 on your computer lt Back E Eancel Uninstalling PCM370 There are two methods for you to uninstall PCM370 System Method 1 Directly select All Programs PCM370 Uninstall Method 2 Select All Programs Control Panel Add or Remove Programs to open the Add or Remove Programs window Select PCM370 in Change or Remove Programs tab and click Change Remove button ProvibTech Phone 1 713 8
97. orer is below ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 32 PCM370 Plant Condition Monitoring System HE mi Step1 Select Edit Picture from Edit menu to check it See below alti T WI Step2 Set location of pictures on Graphic View Drag picture of DTM20_101 DTM10_302 Velocity and Displacement to a proper location in Graphic View ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com EN PCM370 Plant Condition Monitoring System Step3 Create the relationship between machine and machine Right click picture of DTM10_302 and then select Link Machine from drop down list EE gwaen t Lund all sechene T SI If you want to link machine DTM10_302 and DTM20_101 you can click any place on the picture of DTM20_101 The line begins with picture of DTM10_302 and ends with picture of DTM20_101 ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 34 PCM370 Plant Condition Monitoring System Step4 Create the relationship between machine and measurement point Right click picture of Velocity and then select Stud on Machine Picture from drop down list Trad neupurenent poiat an machine pucture ss J Since Velocity belongs to DTM20_101 left click the proper place on picture of DTM20_101 Now you have linked Velocity with DTM20_101 Repeat the step to link D
98. ovable core and a stationary transformer The core is attached to the part to be measured and the transformer is attached to a fixed reference The most common application is casing expansion measurement where the core is attached to the casing and the transformer LVDT housing is attached to the machine foundation Also used for valve position measurements Mechanical Runout A noise component in the output signal of a proximity probe transducer system a probe gap change which does not result from either a shaft centerline position change or shaft dynamic motion Common sources include out of round shafts scratches chain mark dents rust or other conductive build up on the shaft stencil mark flat spots and engravings See Runout and Electrical Runout Micro inch A unit of length or displacement equal to 104 6 inches or 104 3 mils Micro metre A unit of length or displacement equal to 10 6 metres One micro metre equals 0 0394 mil Also called micron obsolete Micro Prox A high sensitivity ProvibTech Proximitor used to accurately and rapidly measure probe gap changes of a few micro inches Mil A unit of length or displacement equal to 0 001 inch One mil equals 25 4 micrometres Mode Shape of the Rotor The deflected shape of a rotor at a specific rotative speed caused by an applied specific forcing function such as imbalance Note this is a three dimensional presentation of rotor lateral See Lateral Vibration deflectio
99. path of C ProvibTech PCM370 you should select the path as C ProvibTech PCM370 vibrate Please choose the restore path of the database file E NetMeeting oo AES Online Services a E Outlook Express D ProvibTech AH POM370 oe La PT2060 CFG FI Web Publish Ri Windows Madia Player gt cc ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 24 PCM370 Plant Condition Monitoring System Delete DB Data Use this command to launch Delete DB Data window In this window you can delete data of a channel or several channels from the current database Even you can empty the current database See below Delete DE Data Device Name DTM20_101 Channel Name Channeld L Channel IT Select All Delete Data Delete DE Data Device Name Select a device from this list and then all channels under this device are displayed Channel Name List all channels under the selected device If you check the check box before a channel this channel is selected Select All Check this button to select all channels in the channel list Delete Data Click this button to delete data of the selected channels Delete DB Data Click this button to empty the current database After the operation all data in the database is deleted ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 25 ave PCM370 Plan
100. point of minimum or zero shaft deflection in a specific mode shape May readily change location along the shaft axis due to changes in residual imbalance or other forcing functions or due to changes in dynamic stiffness such as increased bearing clearance This is often a location of minimum shaft absolute displacement Vibration immediately on each side of the node is 180 degrees out of phase See Pivotal Conical Diagram under Mode Shape Noise Any component of a transducer signal which does not represent the variable intended to be measured Non symmetric Anisotropic Rotor A rotor whose cross section has two different geometric moments of inertia for example an elliptical cross section and or the supports have different stiffness characteristics in the horizontal and vertical directions See Symmetric Rotor Notch Filter A filter which has a single rejection band extending from a finite lower cutoff frequency greater than zero to a finite upper cutoff frequency Frequencies within the rejection band are eliminated or attenuated while frequencies outside the rejection band are retained The opposite of a band pass filter Nulling Subtraction of the shaft slow roll speed value for 1X electrical runout or mechanical runout vector component from the corresponding transducer signal nX vector component Nyquist Plot A type of graphical presentation in polar format used to evaluate the stability of an automatic control system This term
101. presenting the average position of the shaft within the bearing or seal The average eccentricity ratio obtained by dividing the distance between the average position of the shaft centerline and the bearing seal centerline by the radial clearance can vary between zero and one Zero represents the shaft concentric with the bearing seal and one represents the shaft in contact with the bearing seal A trend of decreasing eccentricity ratio can indicate a potential stability problem See Rotor Position Angle and Attitude Angle Eccentricity Ratio Dynamic A dimensionless quantity representing the instantaneous position of the shaft within the bearing or seal The dynamic eccentricity ratio obtained by dividing the distance between shaft and bearing seal centerlines by the radial clearance can vary between zero and one Zero represents the shaft concentric with the bearing seal and one represents the shaft in contact with the bearing seal See Eccentricity Ratio Average Eddy Current Electrical current which is generated in a conductive material when such material intercepts the electromagnetic field of a proximity probe Electrical Runout A noise component in the output signal of a proximity probe transducer system resulting from non uniform electrical conductivity and magnetic permeability properties of the observed material Also caused by local spot magnetic fields on the circumference of the shaft surface A change in the P
102. r Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Danger Each alarm list page can contain maximum 50 alarm events ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 86 PCM370 Plant Condition Monitoring System Status List PCM370 RUN software display two types of status list status list for a measurement point channel and status list for a node NOTE Status list shows the measure value and status information of each measurement point channel In Name column of status list window the channel name plus A indicates the analog channel and the channel name plus D indicates the digital channel If a measurement point channel maps both analog channel and digital channel in Digital Status column of status list window the value for each status bit will be shown by the order you have defined on PCM370 CFG software Status list of a single channel On bar graph page window double click bar graph of the channel to launch Diagram Selection window Check option of Status List and then click OK button Diagram Selection x Following picture shows you status list wi
103. r a machine or a measurement point from PCM Explorer of the current user Left click a machine train or a machine or a measurement point in the tree view and then select Delete from Edit menu The node you selected is deleted directly from PCM Explorer As an alternative to this operation you can right click this node in the tree view and then select Delete from drop down menu E NOTE If you use this command to delete a node this node is only deleted from the current PCM Explorer and it is still monitored by PCM370 system Following instructions teach you how to re display them in the PCM Explorer Condition 1 If the node you deleted is a machine train for example the node is Train Demo Step1 Select Define PCM Explorer from Edit menu You will find Train Demo has already been listed in Available Machine Train List ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 30 eave PCM370 Plant Condition Monitoring System evr Define FCR Explorer Selected Machine Train Available Machine Train Train Demo Step2 Left click Train Demo and click lt lt to move it to Selected Machine Train List Finally click OK button Condition 2 If the node you deleted is a machine or a measurement point for example the node is DTM20_101 In this example DTM20_101 is a machine that belongs to Train Demo DTM20_101 has already been deleted from PCM Explorer Stepl Select
104. r data presentation which is easiest to interpret is the polar format See Acceptance Region and Polar Plot Vector Filter An electronic instrument that automatically adjusts a band pass filter center frequency to coincide with the frequency determined by an external electronic input pulse Keyphasor Typically a digital vector filter is used to automatically filter a vibration signal at rotative speed 1X frequency or 2X or other single frequency especially under transient rotor speed conditions Among other functions a vector filter provides the dc proportional signals shaft centerline Velocity The time rate of change of displacement Typical units for velocity are inches second or millimeters second zero to peak Velocity measurements are used to evaluate machine housing and other structural response characteristics Electronic integration of a velocity signal yields displacement Velocity Transducer An electromechanical transducer typically of inertial design used for measuring bearing housing and other structural absolute vibration Seismoprobe is a ProvibTech registered trademark for this type of velocity transducer Velomitor A piezoelectric velocity sensor with no moving parts that contains an accelerometer crystal and a built in amplifier integrator This type of seismic sensor is used for casing vibration measurements on rotating machinery ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com
105. r installed radially at the same point usually in a common junction box on the machine bearing housing Four separate measurements are provided by this transducer system The proximity probe measures 1 shaft relative radial position within the bearing clearance and 2 shaft dynamic motion relative to the bearing The velocity transducer measures 3 machine casing absolute vibration When the velocity signal is integrated to displacement and added to the shaft relative signal the summation represents 4 shaft absolute motion Dual Voting A logical AND relationship between two independent monitor inputs they must agree before any action is taken For example two transducer input signals must both exceed an amplitude set point usually the Danger set point only before an actual alarm condition is indicated by the monitor If only one transducer input exceeds the set point then no alarm is initiated in the monitor Dynamic Data Data steady state and or transient which contain that part of the transducer signal representing the dynamic e g vibration characteristics of the measured variable Typical dynamic data presentations include Orbit Timebase spectrum Polar Bode Cascade and Waterfall From this data it is possible to derive static data such as amplitude frequency filtered amplitude and phase lag angle from the signal See Steady State Dynamic Data and Transient Dynamic Data Dynamic Stiffness Spring stiffness of the mec
106. rend plot of a node in Tree View Firstly select the node If the node is a machine train you should select the machine train in Machine Train List If the node is a machine you should select the machine train in Machine Train List and then click picture of this machine in Graphics View If the node is a measurement point you should select the machine train in Machine Train List and then in Graphics View double click picture of the machine which the selected measurement point belongs to and finally click picture of the measurement point Secondly click Trend Plot on the main window and a menu pops up For example you select Train Demo on Machine Train List and click Trend Plot on main window Below is the pop up menu you should select Train Demo H Following picture shows you the history trend plot of the Train Demo ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 82 PCM370 Plant Condition Monitoring System Train Demo HM DTM0_101 Velocty ChX 0 00 mms DTM20_ 101 Oisplacement CACO 00 um EH DTM20_101 TR4102 ChXx 0 00 EU I DTM20_10t OTM10_302 Chx 0 00 um OTM20_101 OTM20_101 ChX0 00 mrss i DTM20_101 TMO16_FL CHICO OO mms 10 18 2007 1812 53 54 A trend plot page window can display maximum 16 channels trend plots If the channel number under the selected node exceeds 16 you should go to other page to view the additional trend plots ProvibTech Pho
107. resented in Cartesian format See Average Shaft Position Shaft Rotative Speed The frequency at which a shaft is rotating at a given moment usually expressed in units of revolutions per minute rpm may also be expressed in radians per second mostly for laboratory work 100 rpm equals approximately 10 radians per second 100 rpm 100 PI 30 radians per second Signal Attenuation ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 119 PCM370 Plant Condition Monitoring System A desired reduction in amplitude of a signal without changing the frequency and phase Also the decrease in amplitude and phase that results from the transmission of vibration energy from one machine part to another e g shaft to bearing housing Signal Conditioner A device placed between a signal source and a readout instrument to change the signal Examples attenuators preamplifiers signal converters for changing one electrical quantity into another such as volts to amps or analog to digital and filters Signal Gain The increase or decrease in magnitude of a signal Also the amount of voltage amplification utilized to enlarge small electronic signals up to full scale range on instruments such as FM tape recorders This nondimensional number is usually in even steps of 2 5 and 10 Signature Term sometimes applied to a vibration frequency spectrum which is distinctive and special to a
108. roximate output signal which does not result from a probe gap change dynamic motion or change in average shaft position The error repeats exactly with each shaft revolution See Mechanical Runout Klement Passage Frequency EPx For purposes of studying rolling element bearings using either bearing housing transducers or the ProvibTech REBAM system EPx is a symbolic indication of the rate at which rolling elements pass a fixed point on either the inner or outer race Harmonics of the element passage frequency are then indicated as 2EPx 3EPx nEPx Error The difference between the indicated value and the true value of the measured variable It is often expressed as relative error 1 e as a percent of the output reading of the transducer Essential Machinery That group of rotating equipment which is critical to part of the plant process When essential machinery is not operating the overall plant is not operating to full capacity Machines in this category can be spared or un spared and are typically monitored continuously ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 109 PCM370 Plant Condition Monitoring System Filter Electronic circuitry designed to pass or reject a specific frequency band of a signal Fluid Circumferential Average Velocity Ratio A dimensionless ratio of the average rate of rotation of a fluid in a bearing or seal clearance or in rotor to st
109. rs on User Manual ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 9 PCM370 Plant Condition Monitoring System PCM370 Installation Field Wiring Diagram Field Wiring Diagram 1 PCM370 with DTM DM200 PT580 via Modbus RTU USB RS232 PCM370 TX 232 DTM DM200 PT580 485 85 Field Wiring Diagram 2 PCM370 with PT371 via Modbus RTU PCM3 0 WSB Ro2se ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 10 PCM3 0 USB Roes PCM3 0 USB Ro ede ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 11 PCM370 Plant Condition Monitoring System Field Wiring Diagram 5 PCM370 with Modbus TCP Server Device via Modbus TCP Client PCM370 Co Il __l Ge SS EE PT2060 RACK HUB Other modbus TCP server device O STII lGOaln lt aAIGI IT uuui I ProvibTech Phone 1 713 830 7601 Fax 1
110. s of an inertial Seismic transducer Cross Talk Interference or noise in a transducer signal or channel which originates in another transducer or channel When using proximity probes cross talk can occur when the tips of two or more probes are too close together The interaction of the probes electromagnetic fields causes a noise component in each of the transducers output signals The frequency of the noise component is the difference beat frequency of the two proximate oscillator frequencies Cycle One complete sequence of values of a periodic quantity Decibels A numerical expression of the ratio of the power or voltage levels of electrical signals dB 10 log P1 P2 20 log V1 V2 Difference Analysis A method for evaluating the change in a measurement variable Two sets of data are collected at different points in time or under different conditions and are subtracted from each other Differential Expansion The measurement of the axial position of the rotor with respect to the machine casing at some distance from the thrust bearing Changes in axial rotor position relative to the casing affect axial clearances and are usually the result of thermal expansion during startup and shutdown The measurement is typically made with a proximity probe transducer mounted to the machine casing and observing an axial surface e g collar of the rotor The measurement is usually incorporated as part of a TSI system Differential P
111. s provibtech com www provibtech com 42 ave PCM370 Plant Condition Monitoring System Device Management pa List Name Device No Device Type Property Channel Nu DTMZ20 101 Modbus RTU DAQ Module DST TTT TTT TT TE TTT TTT e TR ere DTM10_302 i Modbus RTU DAQ Module 5 Add og fu re Extended Definition Name Display device name Device No Display device No This number identifies a unique device monitored by PCM370 system PCM370 will assign a No for device when it is added User can change device No The No range 1s from 0 to 63 0 and 63 are contained Device Type Display device type There are two available options for you to select Modbus TCP Client and Modbus RTU Property There are three available options DAQ Module 4 20mA Current Output Relay Module Channel Number Display channel number Channel Number should be integer between 0 and 33 0 and 33 are not contained For a 4 20mA and Relay Module device the channel number should equal the actual number of the used channels Specially for the DAQ Module device if it is used to get both measure value and status information you should set the channel number two times as the actual number of the used channels if the device is used only to get measure value you should set the channel number equaling the actual number of the used channels So for DTM and PT580 in normal condition the channel number is usually set as 2 and
112. scanning The result will be shown behind string of Current information If scanning succeeds all communication parameters will be refreshed automatically And if it fails the failed window is displayed to inform you If the device type is Modbus TCP Client the window is below Channel Definition Channel Definition Channel No UUOU OO000 Advanced Setting Oooo UUOU UUOU UDO UDO UOOO UOOO 9 OO Server Address lga a 1662 Le ce D Connection WS lide DO zl Di IH DA bi CH Channel Definition Double click a channel following dialog box pops up Type the proper register address and description words And then click OK button Channel No o Address 30001 Description Channel No Display channel No list Address The register address indicates the location in the device where the status and data is read Please refer to Appendix IV and Appendix V of this book to get the channels register address of different devices Description Short words to describe this channel ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 47 PCM370 Plant Condition Monitoring System Server Address IP Address of the Modbus TCP Server device Advanced Setting Button Click this button to launch Advanced Setting Window Advanced Setting Ed Slave Address Server Port Slave Address Slave address of the third part Modbus TCP Server d
113. sducers and Micro PROX Relative Vibration Vibration measured relative to a chosen reference Proximity probes measure shaft dynamic motion and position relative to the probe mounting usually the bearing or bearing housing Relative Transducer A proximity probe observing shaft motion relative to the probe mounting usually the bearing or bearing housing Repeatability The ability of a transducer or readout instrument to repeat measurements under the same conditions within narrow limits Precision is the measure of repeatability Resolution The smallest change in applied stimulus that will produce a detectable change in the instrument output ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 117 PCM370 Plant Condition Monitoring System Resonance The condition in which a forcing frequency coincides with a natural frequency of the system A resonance typically is identified by an amplitude peak accompanied by a maximum rate of change of phase lag angle See Balance Resonance Speed Rod Drop On a reciprocating compressor the measurement of the position change of the piston rod relative to a fixed reference point as the piston drops in the cylinder due to piston rider ring deterioration The position measurement can indicate either the average position of the rod over the full stroke or the instantaneous position of the rod at a specific point in the stroke Rod Drop A
114. t Condition Monitoring System evr User Menu User Edit Setup Help User Management Modify Password Refresh FCM Explorer FS User Management NOTE There are three levels of users in the PCM370 administrator Super User and User The administrator has full access to operate PCM370 CFG software Super Users almost have full access to PCM370 CFG software But as Super User they can t manage users such as adding users changing users information and deleting users Users only have part of access to PCM370 CFG software As User they can set information that is related to themselves such as changing logon password defining PCM Explorer setup system information customizing trend type etc They also can view all lists and plots in their PCM Explorer But they can t configure the system information Users that log on by account of administrator can use this command to launch User Management window User Banagenent x User List administrator Modify Delete Add button Click this button to add a new user Enter the user name password in the related edit boxes And select the user level for the new user Finally click OK to save the operation ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 26 PCM370 Plant Condition Monitoring System Modify button Use this command to change information of the selected user Select a
115. then select the alarm level Specially if you select a digital channel and select the alarm level that wasn t defined for this channel this alarm level factor will always return 0 or False ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 61 eave PCM370 Plant Condition Monitoring System Setup Channel Alarme Level x Alarm Level Channe lU Ce Not OF Channell Alert Danger Delete button If you want to delete a sub expression for the relay expression you can rest your mouse pointer behind the sub expression and then click Delete button to delete it Channel Update button If you finished expression setting on a relay channel you should click this button There are two functions for this operation The one is checking the validity of expression If the expression is illegal you will be informed to change it For example the expression Device 0 Channel 0 Alert Device 0 Channel 0 Danger is illegal In the example left bracket 0 is missing Another function for this button is to save the expression If the expression is legal clicking this button will save the expression ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 62 ave PCM370 Plant Condition Monitoring System evr Custom Trend Setup Custom Trend Setup Window is used to set the custom trend plot type With this funct
116. tion Technology Machine Design Penton IPC Inc Cleveland Ohio 2 Electrical Transducer Nomenclature and Terminology Instrument Society of America Philadelphia Pennsylvania 3 Electronic Engineer s Handbook McGraw Hill Book Company New York New York 4 Mark s Mechanical Engineering Handbook McGraw Hill Book Company New York New York 5 Mechanical Equipment Standards for Refinery Service American Petroleum Institute Washington D C ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 125
117. tion technique used for sine wave vibration signals the half cycle average is 0 637 x zero to peak amplitude Average amplitude detection is not used by ProvibTech because machinery vibration signals are most often non sinusoidal in form and the peak to peak or peak amplitude cannot be correctly computed Average Shaft Position The static or average position of the shaft relative to a stationary component on the machine to which the probe is mounted The most common application is rotor axial thrust position relative to the thrust bearing Another important application is shaft average radial position in the bearing These measurements are made using the dc position component of the proximity probe signal Two proximity probes mounted in an XY configuration are required for the two dimensional radial position measurement Axial In the same direction as the shaft centerline Axial Position The average position or change in position of a rotor in the axial direction with respect to some fixed reference Typically the reference is the thrust bearing support structure or other casing member to which the probe is mounted The probe may observe the thrust collar directly or some other integral axial shaft surface as long as it is within about 12 inches of the thrust bearing Also called thrust position See Differential Expansion Balance of Plant Machinery That group of rotating machinery which is not critical to any part of the overall p
118. tton Step3 Enter 2000 in Numerical Data For End Current edit box and enter 20000 in End Current edit box Click the related Refresh button The calibration for a current channel has finished you can repeat stepl step3 to calibrate other current channels After the calibration you should click OK button to save the operation ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 59 PCM370 Plant Condition Monitoring System Relay Module Setup Relay Module Setup Window is used to configure relay devices Relay Module Setup A x Relay Device Channel Name Chanel Channel Expression Channel No Channel Name DS 0 Channel0 1 Channell 2 Channel 3 Channel3 4 Channel4d 5 6 T 8 Channel5 Channel6 ChannelT Channel8 fd Property Of Channel j amp And Or Not kW Energized Latching Bypass WEA Delet a elec E elete Alarm Delay fo ms Channel Update cancel Relay Device Display all relays in PCM370 system Channel Name Display name of the selected relay channel You can change the channel name by entering the name in edit box Channel Name And when you switch to another relay channel the new channel name will be displayed Channel Property Description Energized If the relay device is a Normally Energized Relay NE you should mark this option And if the rel
119. unting location Typically proximity probes used for rotating machinery measurements operate on the eddy current principle and measure shaft displacement motion and position relative to the machine bearing s or housing See Relative Transducer Q Filter Filter selectivity i e the relative band of frequencies passed or rejected by the filter The narrower the band of frequencies the higher the Q and the broader the band the lower the Q This is computed by Q fc delta f where fc is the center frequency and delta f is the bandwidth of the filter at the 3dB points Q Machine Derived from Q Filter Used to describe the synchronous amplification factor of a rotor system See Synchronous Amplification Factor Radial A direction on a machine which is perpendicular to the shaft centerline in the XY plane usually refers to direction of shaft lateral or casing motion or measurement Radial Vibration Shaft dynamic motion or casing vibration which is measured in a direction perpendicular to the shaft axis Raster Plot A type of Cascade or Waterfall plot usually with a skewed Y axis so that the plot has an isometric appearance Real Time Analyzer A term used to describe an instrument which displays a vibration frequency spectrum REBAM An acronym for Rolling Element Bearing Activity Monitor which is a ProvibTech method and system for monitoring and analyzing the performance of rolling element bearings using eddy current tran
120. ure of the tendency of a force to cause rotation Equal to the force multiplied by the perpendicular distance between the line of action of the force and the center of rotation Torque Average The constant amplitude component of the moment force couple applied to a rotor in order to sustain rotational speed angular acceleration or load requirements Torque Dynamic The instantaneous amplitude of the time varying component of the moment applied to a rotor typically resulting from a variation in driving load or torque Torque Static The force times the perpendicular distance between the force s line of action and the center of rotation moment as applied to a structure non rotating Torsional Vibration Time variation of the angle of twist typically measured in tenths of degrees pp TorXimitorTM A ProvibTech non contacting signal conditioning device which senses strain and outputs a signal proportional to torque TorXimitorTM continuously measures dynamic as well as static torque TorXimitorTM is a trademark of ProvibTech Corporation Transducer ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 122 PCM370 Plant Condition Monitoring System A device for translating the magnitude of one quantity into another quantity The second quantity often has units of measure different from the first and serves as the source of a useful signal Vibration transducers convert
121. user name in user list first and then click Modify button Bodify User Information MU va o In above window you can change name logon password and account level of the selected user Finally click OK to save the information Delete button Use this command to delete the user from PCM370 system Select the user from the user list first and then click Delete button If you are sure to delete this user you should click Yes on below window PLM370 CFG ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 27 PCM370 Plant Condition Monitoring System Modify Password Use this command to change logon password of the current user You are required to enter the new password twice in below window Bodity Password Ei New Password Confirm New Password Refresh PCM Explorer F5 Use this command to refresh the current PCM Explorer Pressing F5 on the keyboard is an alternative to this operation ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 28 PCM370 Plant Condition Monitoring System Edit Menu Edit Setup Help Rename Define PCM Explorer Delete Del Edit Ficture Rename This command is used to rename the machine train machine or measurement point in the PCM Explorer of the current user Left click a machine train or a machine or a measurement point in the tree view
122. ve PCM370 Plant Condition Monitoring System evr Modify Trend Plot Type gy x Trend Type Name Select Machine Train Train Demo Selected Channel Available Channel Velocity Train Demo PT37T1 TR4A102 Dis Train Demo PT3T1 DTIM10 3 Train Demo PT5T1 DTM20_1 Train Demo PT37T1 THO16_F Channel Name In the window you can change the name of this custom trend plot type And you can change the name of the channels contained in the current custom trend plot type Also you can change the channel member in the custom trend plot type adding new channels or deleting some channels NOTES When the mapping relationship between a DAQ device channel and a measurement point channel that contains in the custom trend plot type is changed the custom trend plot type is changed also In this condition you should re define this trend plot type Several reasons will result in the changing of mapping relationship v The measurement point that is related to the custom trend plot type is deleted v The analog channel that is related to the custom trend plot type is deleted v The measurement point channel is changed to map other analog channel Delete button Select the custom trend plot type in Custom Trend Setup window and then click Delete button If you are sure to delete the selected trend plot type please click Yes on the below window PCM370 CFG mm xj N an j Confirm to delete this trend type Pro
123. verage Position On a reciprocating machine the measurement of the average position change of a piston rod over the full stroke of the piston relative to a fixed reference on the cylinder This measurement is usually achieved by evaluating the average dc gap voltage change of a proximity probe mounted to the fixed reference Rod Drop Instantaneous Position On a reciprocating machine the measurement of the position change of a piston rod at one specific event during the full stroke of the piston relative to a fixed reference of the cylinder This measurement is usually achieved by evaluating the instantaneous dc gap voltage change of a proximity probe mounted to the fixed reference Timing of the measurement is provided by a Keyphasor probe Rolling Element Bearing Antifriction Bearing A bearing which uses rolling elements rollers or balls to support the load of a rotating shaft and to minimize friction Rolloff The rate of attenuation of amplitude and phase with respect to frequencies above or below a certain point Thus a low pass filter is designed to provide amplitude and phase rolloff at high frequencies and a high pass filter is designed to provide rolloff at low frequencies Commonly rated in dB per octave Rolling Elements Components in a rolling element bearing generally rollers or balls which support the rotating load of a shaft ROMIS Rotating Machinery Information Systems and Services ProvibTech s ROMIS product of
124. vibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 13 PCM370 Plant Condition Monitoring System Found New Hardware Wizard Please choose your search and installation options ue SS Search for the best driver in these locations Use the check boxes below to limit or exp and the default search which includes local paths and removable media The best diver found will be installed C Search removable media floppy CD ROM Include this location in the search C AVCP Drivers v O Dont search will choose the driver to install Choose this option to select the device driver from a list Windows does not guarantee that the driver you choose will be the best match for your hardware d Click on Continue Anyway to continue with the installation Hardware Installation Pi The software you are installing for this hardware USB High Speed Serial Converter has not passed Windows Logo testing to verify its compatibility with Windows ab ell me why this testing is important Continuing your installation of this software may impair or destabilize the correct operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the hardware vendor for software that has passed Windows Logo testing Found New Hardware Wizard Please wait while the wizard installs the software e USE Serial
125. vibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 65 ave PCM370 Plant Condition Monitoring System ES Dynamic Data Collection Setup Dynamic Data Collection Setup Window is used to set dynamic collection conditions for machine train Dynamic Data Collection Setup x Machine Train Train Demo Trigger Mode Start Time Time Interval 10 second s W Alarm Trigger Time Trigger Check it to set time trigger condition Please select start time and enter the time interval Alarm Trigger If you check this option the machine train will be triggered when there is an alarm in any channel under this machine train For analog channels when channel measure value exceeds alarm set points the channel is in alarm and the alarm will trigger the machine train Especially for digital channels the channel should be set Alert or Danger bit or set both Alert bit and Danger bit And also the channel should be set Trigger when the Alert bit or Danger bit returns 1 or True the machine train will be triggered The channels that are set Enable Dynamic Data Collection beneath the triggered machine train will automatically start dynamic data collection ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 66 ave PCM370 Plant Condition Monitoring System Calibration Calibration Window is used to calibrate analog channels of
126. ying transient response leading to the previous steady state regime Note that these definitions refer to some quantitatively undefined small actions If a mechanical system exhibits several steady state regimes of motion the definitions apply equally to each one Note also that according to these definitions oil whirl is stable while the rotor undergoes instability Stability of a Mechanical System Practical Definition ProvibTech Phone 1 713 830 7601 Fax 1 281 754 4972 sales provibtech com www provibtech com 120 PCM370 Plant Condition Monitoring System A mechanical system is stable if any practical perturbation results in a system response with amplitudes within acceptable prescribed levels 1 Stability of a Rotating Machine A rotating machine is stable if at operating speeds the rotational motion of all rotating elements shafts disks blades etc and the steady equilibrium of non rotating parts supports bearings cases foundations etc are not accompanied by various modes of vibration with amplitudes exceeding prescribed acceptable levels This definition also applies to machine startups and coast downs when shaft rotative speed is variable Static Data Data which describes the quantitative characteristics of the measured parameter Static data can also include quantitative values describing the conditions under which the parameter was measured For predictive maintenance purposes static data is typi

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