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User Manual

Frequency Response Function Extension Module for
the Dynamix 2500 Data Collector

Catalog Number 1441-DYN25-MFRF

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Summary of Contents for Dynamix 2500

Page 1: ...User Manual Frequency Response Function Extension Module for the Dynamix 2500 Data Collector Catalog Number 1441 DYN25 MFRF...

Page 2: ...umed by Rockwell Automation Inc with respect to use of information circuits equipment or software described in this manual Reproduction of the contents of this manual in whole or in part without writt...

Page 3: ...nsion Modules 12 Extension Module Battery Status Indicators 13 Chapter 2 FRF Frequency Response Function Extension Module Newton s Law and Apparent Mass 16 Setting Up an FRF Measurement 16 Test Hardwa...

Page 4: ...4 Rockwell Automation Publication 1441 UM003A EN P May 2011 Table of Contents Notes...

Page 5: ...you take 3 and 4 channel magnitude time waveform spectra and Offroute measurements 1441 DYN25 MBMP Bump Test A bump test or hammer test determines the natural frequencies of a machine or a structure 1...

Page 6: ...e Users Manual publication 1441 UM005 Describes how to use the data collector as a data recorder for real time data acquisition post processing and analysis Dynamix 2500 Data Collector Run Up Coast Do...

Page 7: ...le you have the option to free up the license so you can install the extension module on another instrument This makes the extension module available to be transferred between units Topic Page Install...

Page 8: ...2500 data collector 2 Place the extension module Secure Digital SD card contact side up into the unit until it is firmly seated in place 3 Close the base cover 4 Apply power to the data collector 5 Fr...

Page 9: ...s showing the current extension module installations 8 Press 0 Shift to display the Install Extension function 9 Press F2 Install to install the new extension module When the installation is complete...

Page 10: ...up Utility screen to display the Extension Manager function The Extension Manager function remains on the screen for about 3 seconds after releasing 0 Shift 2 Press F1 Extn Mgr The Extension Manager s...

Page 11: ...extension module 7 Press F4 Esc to exit the Extension Manager screen IMPORTANT The extension module is uninstalled and the license on the card is released so that the card can be used to install the...

Page 12: ...er function The Extension Manager function should remain on the screen for approximately three seconds after releasing 0 Shift 2 Press F1 Extn Mgr The Extension Manager screen appears The Extension Ma...

Page 13: ...you want to show or hide multiple extension modules simultaneously select each extension module and press F3 Select A checkmark appears next to each selected extension module If you select multiple e...

Page 14: ...14 Rockwell Automation Publication 1441 UM003A EN P May 2011 Chapter 1 Installing Optional Extension Modules Notes...

Page 15: ...with a modal analysis software package to model the way the structure reacts to forces applied to it You can use the FRF module to capture information about how a machine moves when it is running You...

Page 16: ...measurement first set up the test hardware before you configure the parameters for the FRF Module Figure 1 Example FRF Measurement Setup Test Hardware Setup When setting an FRF test you need this equ...

Page 17: ...ressing Enter the Dynamix 2500 data collector Be aware of these items before placing the accelerometer The magnet should be firmly screwed onto the accelerometer Any looseness between the magnet and a...

Page 18: ...already been configured to make the setup easier These are the measurement parameters that are already configured for you Pre trigger delay set to 10 of block length Trigger level set to 10 of input r...

Page 19: ...Rockwell Automation Publication 1441 UM003A EN P May 2011 19 FRF Frequency Response Function Extension Module Chapter 2 The FRF menu appears 2 Select Setup and press Enter The FRF Setup screen appears...

Page 20: ...be ODS analysis requires a sensor on both Connector A and B The sensor type and sensitivity must match on both channels Accel G default m s2 in s mm s mils um Sens Enter transducer sensitivity in mV p...

Page 21: ...t may not achieve good results 400 default Windowing Sets the FFT window type to Uniform or Force Exponential Force Exp default Uniform Num of Averages Sets the number of FFT averages 5 default Accept...

Page 22: ...ress Start If you have Hammer Range Response Range or Num of Lines set to automatic a message appears advising you that you will be asked to perform three trial hits The results of these hits are used...

Page 23: ...nd increases the number of hits count displayed at the bottom of the screen 3 Perform all three hammer strikes Once complete a message box appears showing the calculated values for the applicable sett...

Page 24: ...ta is correct If it is not a message appears with details on why the hit was rejected If Accept Reject was set to Manual the hammer and response time waveforms display for both the hammer and accelero...

Page 25: ...ut a test on a known mass for example a calibration weight or steel bar of a measured value Use a calibration weight of 1kg or any other known mass Figure 2 Field Calibration Setup This is an example...

Page 26: ...s and connect to connector B 4 Place the accelerometer on mass The mass can be hand held The use of foam or a supporting structure is not necessary 5 Set the Measurement parameter to Apparent Mass 6 S...

Page 27: ...The Save screen appears Depending on where you are in the measurement process a Save Setup or Save Reading appears 2 Save the measurement Select the file and press F3 Save to save the data to an exist...

Page 28: ...o apply for civil engineering structures You can import measurements taken by the FRF extension module into ODS analysis software such as Vibrant Technology Inc s ME scopeVESTM Follow these instructio...

Page 29: ...ange 20 FRF setup 20 I install extension module 8 L license extension module 11 M manage extension modules 12 hide and show 12 measurement corrupt 17 offroute 15 modal analysis 15 N Newton s Law 16 O...

Page 30: ...30 Rockwell Automation Publication 1441 UM003A EN P May 2011 Index Notes...

Page 31: ......

Page 32: ...f installation review the information that is contained in this manual You can contact Customer Support for initial help in getting your product up and running New Product Satisfaction Return Rockwell...

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