User Manual Enpac 2500 Data Collector Catalog Numbers 1441-PEN25 and 1441-PEN25-Z
Important User Information Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from your local Rockwell Automation® sales office or online at http://www.rockwellautomation.com/literature/) describes some important differences between solid-state equipment and hard-wired electromechanical devices.
Summary of Changes This manual contains new and updated information. Changes throughout this revision are marked by change bars, as shown to the right of this paragraph. New and Updated Information This table contains the changes made to this revision.
Summary of Changes Notes: 4 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Table of Contents Preface Using the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Upgrade Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Enpac 2500 Data Collector and the Emonitor Software . . . . . . . . . . . . . Software Compatibilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . USB and Communication Software . . . . . . . . . . . . . . . . . . . . .
Table of Contents Perform Hard Restart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Adding Applications to the Enpac 2500 Data Collector . . . . . . . . . . . . . 58 Chapter 2 Setting Up Measurements Measurement Definition Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Measurement Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Measurement Filters . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Selecting the List(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loading Selected Lists to the Data Collector . . . . . . . . . . . . . . . . . . . Displaying the Data Collector Driver Version Number . . . . . . . . . Unloading Lists from the Data Collector . . . . . . . . . . . . . . . . . . . . . . . . . . Unloading Lists in Emonitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Chapter 5 Multi-channel Measurements Predictive Maintenance Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Orbit Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Understanding an Orbit Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Set Up Orbit Measurements Definitions in the Emonitor Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Advanced Setup Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . One Plane Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taking the Initial Vibration Measurement. . . . . . . . . . . . . . . . . . . . . Adding the Trial Weight and Taking a Measurement. . . . . . . . . . . Adding the Correction Weight and Taking a Residual Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Displaying the Bode Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Displaying Measurements Using a Nyquist Plot. . . . . . . . . . . . . . . . . . . . Setting Up the Nyquist Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Displaying the Nyquist Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Displaying Measurements in Table Format . . . . . . . . . . . . . . . . . . . . . . . . Setting Up the Table. . . . .
Table of Contents Why wont the Enpac 2500 combine magnitude and phase or manual entry measurements at a location? . . . . . . . . . What does the USER (eus) units mean? . . . . . . . . . . . . . . . . . . . . . . . Why are the alarms in the Enpac 2500 not what I selected?. . . . . . Why aren't inspection codes available for a list? . . . . . . . . . . . . . . . . How can I reduce the ranging time required during collection? . . Unloading Data from the Enpac 2500 . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Notes: 12 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Preface The content in this manual is based on the following firmware revision and software version. • Enpac® 2500 data collector, firmware revision 3.10 • Emonitor® software, version 3.4 Using the Manual This manual covers the Enpac 2500 data collector module which is used for predictive maintenance using noise and vibration analysis. It describes also how to use the Emonitor software to load and unload lists.
Preface Enpac 2500 Data Collector and the Emonitor Software The terminology in the data collector and the software differ in several ways. This table illustrates the differences. Table 1 - Terminology Differences Software Compatibilities Enpac 2500 Terminology Emonitor Terminology Offroute Measurements that are taken but are not downloaded on to the instrument from Emonitor. These measurements can be upload to Emonitor.
Preface Using Online Help The Emonitor software and the Enpac 2500 data collector each include online help: • Emonitor Online Help The Emonitor online help is available from the Emonitor Help menu or by pressing F1. • Enpac 2500 Online Help The Enpac 2500 data collector online help is available from any screen where the Help function appears. Press F1 (Help) to access the online help. On some screens that do not display the Help function, pressing Shift(0) provides access also to the Help.
Preface Organization To help you navigate through this manual, it is organized in chapters based on these tasks and topics. Section Description Preface Contains an overview of the manual. Chapter 1, The Enpac 2500 Describes the Enpac 2500 data collector and covers the basic operations and configuration of the data collector. Chapter 2, Setting up Measurements Describes setting up measurement definitions in Emonitor for use with the data collector.
Preface Additional Resources These documents contain additional information concerning related products from Rockwell Automation. Resource Description Emonitor Users Guide, publication EMONTR-UM001 Describes data management for predictive maintenance services. Enpac 2500 Data Collector Release Notes, publication GMSI10-RN004B Provides important information on the latest updates, for example, firmware, certifications, warnings, and hardware changes for the data collector.
Preface Notes: 18 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Chapter 1 The Enpac 2500 Data Collector This chapter describes the Enpac 2500 in detail and covers the basic operations and configuration of the data collector.
Chapter 1 The Enpac 2500 Data Collector In addition, Emonitor can optimize your data collection by combining measurement definitions at a location. For example, Emonitor could combine two magnitude and one spectrum measurement definitions so that the list appears to contain only a single measurement. This allows you to collect all three measurements at one time, minimizing the time you spend collecting data.
The Enpac 2500 Data Collector Chapter 1 This section describes the basic components of the Enpac 2500 including key definitions, hardware connections and status indicators. If you are already familiar with the components of the data collector, you may want to skip this section. Parts of the Enpac Enpac 2500 Diagram and Key Definitions This is a diagram of the Enpac 2500 data collector showing the keys used for operation.
Chapter 1 The Enpac 2500 Data Collector Table 2 - Key Definitions 22 Keys Definition Right Arrow • Displays the next screen of information if there is more than one screen (for example, selecting a point in the Data Collection screen). • Opens the menu selection on the Setup and Instrument Configuration screens. • Moves the signature cursor to the right. ON/OFF The ON/OFF key turns the data collector on and off. To turn the data collector off, press and hold the ON/OFF key for one second.
The Enpac 2500 Data Collector Chapter 1 External Connections The external hardware connections for communications and data collection are located on the top panel of the Enpac 2500, as illustrated in this figure. Figure 2 - External Hardware Connections IrDA Window, is not supported. Table 3 - Pin Assignments Pin No.
Chapter 1 The Enpac 2500 Data Collector POWER / TRIG / USB This socket connects the Enpac to either an external trigger, power adapter or USB interface. The external trigger enables synchronization of the data acquisition process to external events, such as tachometer inputs for rotational synchronization for balancing applications, or for order normalization of frequency spectrum. The trigger pulse can also be used to collect running speeds of machinery.
The Enpac 2500 Data Collector Chapter 1 Status Indicators The Enpac 2500 has three status indicators located in the upper-right side of the Enpac nameplate. Figure 4 - Status Indicators Red Amber Green Table 4 - Status Indicators Status Indicators Operation State Definition Red Charging Battery Flashing When first connected to the power adapter, the Enpac 2500 tests the condition of the main battery. Within 30 seconds, the status indicators should go to a solid state.
Chapter 1 The Enpac 2500 Data Collector Strap Attachment The strap can be fitted to either the left or right side of the Enpac 2500. 1. Feed the ends of the strap through the top and bottom corner pillars as shown in the illustration below. 2. Loop the ends of the strap through the buckles and adjust the tightness to suit.
The Enpac 2500 Data Collector Chapter 1 This table shows the typical battery life for the lithium ion battery, assuming the battery is properly charged.
Chapter 1 The Enpac 2500 Data Collector This table shows battery status icons relative strength of the battery. Table 6 - Battery status icons Battery Icon Meaning Battery status is good (>30% life remaining) Battery status is low (>10% life remaining) Battery status is very low (<10% life remaining) Battery charging IMPORTANT The Enpac 2500 will automatically notify you when the battery status is 30% or lower. To clear the notification, press the Decimal (.) key.
The Enpac 2500 Data Collector Powering on the Enpac The ON/OFF key powers the Enpac 2500 on and off. A single press of the key powers on the data collector. However, to power off the Enpac 2500, press the ON/OFF key for a period of one second. The Enpac 2500 resumes operation at the last screen you viewed when you powered off the unit. TIP Enpac 2500 Screens Chapter 1 The first time you power on the Enpac 2500 or following a reset, the Instrument Setup screen automatically appears in the display.
Chapter 1 The Enpac 2500 Data Collector The Main Menu includes these standard options. • Data Collection - The Data Collection option allows you to collect both route and unscheduled (off route) data. It also allows you to view any data stored in Enpac 2500. The data can be viewed on the screen by using the RS-232 interface. Refer to Data Collection Screen on page 33 for more information. • Setup Utility - The Setup option allows you to set up global options for collecting data.
The Enpac 2500 Data Collector Chapter 1 The Extension Manager and Calibration buttons appear. The Extension Manager lists the option extension modules installed on the data collector. Refer to Install Optional Extension Modules on page 189. When you are finished, press F4 (Apply) to return to the Main Menu.
Chapter 1 The Enpac 2500 Data Collector Set the Date, Time, and Date Format The Enpac 2500 data collector keeps the current date format, date, and time even when the instrument is powered off. However, there may be times when you need to change these settings. For example, after restarting or resetting the Enpac 2500, the date and time get set to 00:00:00. Follow these steps to set the date, time, and select a date format. 1. Select Setup Utility from the Main Menu and press Enter.
The Enpac 2500 Data Collector Chapter 1 Data Collection Screen The Data Collection screen allows you to navigate around the Routes loaded in the data collector, collect and store route and off route data, and edit the data collection options. It also allows you to navigate through the stored data and to review previously collected route and off route data. When you select Data Collection from the Main Menu, the Route Manager screen appears.
Chapter 1 The Enpac 2500 Data Collector The information for the first point taken appears. To highlight an item, press the Up or Down arrow key. To view previously collected route data. Collect and review Offroute data. To access four additional functions for the Data Collection screen, press 0. Backlight adjustments Displays the Instrument Configuration screen. Follow these steps to move around in the Data Collection screen. 1.
The Enpac 2500 Data Collector Chapter 1 The Select Location screen appears. TIP The Selection screen does not appear if you set the route Navigation mode to `DataPac’ in the Setup Utility menu. Instead, the Enpac 2500 data collector automatically moves to the next point in the route when you press the Right arrow. Use the Up and Down arrow keys to highlight the point. Task Action Select an item. Highlight the item and press the Left arrow key. Leave the screen without selecting an item.
Chapter 1 The Enpac 2500 Data Collector 4. To start collecting data, press READ/OK. 5. To review previously collected route data, press F1 (Review). 6. To collect and review off route data, press F2 (Offroute). 7. When you are finished in the Data Collection screen, press F4 (Esc) to return to the Main Menu. Refer to Collecting and Reviewing Data on page 119 for more information about collecting and reviewing data.
The Enpac 2500 Data Collector Chapter 1 Help Screen Online help is available from any screen where the Help function is displayed on the screen. 1. Press F1 (Help) to access the online help. The Help Contents screen appears. To highlight a topic, press the UP or DOWN ARROW key. 2. Highlight the topic for which you want to view and press F1 (Goto). 3. When you are finished viewing the topic, press F1 (Contents) to return to the Help Contents screen or press F4 (Esc) to exit the online help.
Chapter 1 The Enpac 2500 Data Collector Figure 6 - Engineer Mode Menu Screen Option 4 is not supported in the Enpac 2500. The Engineer Mode Menu provides you the following options. To select one of the options, press the respective numeric key. 1. Force Clean Boot - During a normal boot sequence, the unit will automatically update the registry contents into Flash memory so that any changes are permanently stored.
The Enpac 2500 Data Collector Chapter 1 View Settings for Current Measurement Definition You can review the measurement definitions for the current active measurement point from the online help. 1. Press F1 (Help) to access the online help. The Help Contents screen appears. TIP On some screens, Help is located on the second set of functions, press (shift) to display F1 (Help). 2. Press F2 (Pt. Info.) to view the measurement definition. The Current Point Info screen appears. 3.
Chapter 1 The Enpac 2500 Data Collector Setting Up the Enpac 2500 Data Collector Before you begin to take readings, you need to configure the instrument parameters by using the Setup Utility, Instrument Configuration and Data Collection screens. Configure the Data Collector By using the Setup Utility, you can configure the global options for your data collector. Follow these steps to configure the data collector. 1. Select Setup Utility from the Main Menu and press Enter. The Setup screen appears.
The Enpac 2500 Data Collector Chapter 1 Table 7 - Setup Screen Parameter Descriptions Parameter Description Value Route Mem Sets the location where the loaded route data is stored. Internal (default) Storage Card Timeout The number of minutes the Enpac 2500 can remain idle before it shuts itself off to conserve battery power. Press On/Off to reactivate the instrument following a timeout. The instrument returns to the point in the program where it was when it shut off. No stored data will be lost.
Chapter 1 The Enpac 2500 Data Collector Table 7 - Setup Screen Parameter Descriptions Parameter Description Value Bias Check The bias of the transducer before taking the measurement. Manual (default) Automatic Module ICP The Module ICP option allows the manual control of turning off/on ICP power to transducers in application modules. Never Always Auto Language Sets the language for the user interface.
The Enpac 2500 Data Collector Chapter 1 The Config function should remain on the screen for approximately three seconds after releasing the 0 key. 3. Press F4 (Config) to display the data collection options. The Instrument Configuration screen appears. 4. Review the default values and edit if necessary. 5. When you are finished, press F4 (Apply) to return to the Data Collection screen.
Chapter 1 The Enpac 2500 Data Collector Table 8 - Instrument Configuration Parameters Parameter Description Value Freq. Units The frequency units for displaying spectra/FFT data in the data collector. This parameter is initially set to the default frequency (Hz or CPM) in Emonitor when you load a list. Hz: displays spectra in Hertz, cycles per second. CPM (default): displays spectra in cycles per minute. Orders: spectra in orders of the operating speed.
The Enpac 2500 Data Collector Chapter 1 Table 8 - Instrument Configuration Parameters Parameter Description Acquisition Determines how the Enpac 2500 collects a signature when the measurement definition specifies just one average. Autoranging Value Value Description Single shot Measures a single average for the signature and then stops. Continuous Default Continuously measures the signature until you press Enter to stop the averaging. This will pause the acquisition.
Chapter 1 The Enpac 2500 Data Collector Table 8 - Instrument Configuration Parameters Parameter Description Value Mach. Speed Controls the amount of time auto-ranging will wait to be sure it has seen the peak signal value of the sample. Value Description Normal Sets the auto-ranging algorithm to only track signals above 120 rpm. Therefore, use this setting when the machine speed is greater than 120 rpm. The normal speed setting guarantees the waiting time be no longer than 0.5 seconds.
The Enpac 2500 Data Collector Chapter 1 Table 8 - Instrument Configuration Parameters Parameter Description Value Trigger Sets the trigger source. External (default) Uses the trigger input from the POWER/USB/TRIGGER connector as the trigger source. Laser Tach Enables the internal Laser Tachometer when a Phase or Order measurement is collected. Trig Level Sets the trigger level. Applies only to triggered measurements (rpm points, phase points, time-synchronous averaged points).
Chapter 1 The Enpac 2500 Data Collector Types of Memory Cards Used with Enpac 2500 Most any PCMCIA adapter and Secure Digital (SD) memory card, up to 2GB can operate with the Enpac 2500. Table 9 - Types of Memory Cards Manufacturer Size Speed PQI 1 GB Hi Speed 60 Transcend 2 GB 40 Kingston 512 MB 40 Sandisk Secure Digital Card, SDSDx-yyy 2 GB Not compatible with SDHC cards. The Enpac 2500 also supports the following ATA flash PCMCIA cards.
The Enpac 2500 Data Collector Chapter 1 To Remove a Memory Card 1. With the bottom of the Enpac facing you, press down the latches of the base cover. 2. Pull the base cover towards you. 3. Press the release button and gently work the card out of its slot.
Chapter 1 The Enpac 2500 Data Collector Operating System Update Procedures Download the Enpac 2500 .zip upgrade file from http:// www.rockwellautomation.com/support/. Click Downloads > Firmware Updates > Condition Monitoring. IMPORTANT We recommend that you delete all older versions of the installer loader .msi files from your computer before updating the Enpac 2500 data collector’s operating system.
The Enpac 2500 Data Collector Chapter 1 Before performing the 3.10 firmware upgrade, take note of the modules installed on the Enpac 2500 data collector. TIP To confirm which modules that are installed and the version by press F3 (About) on the Main Screen. Table 12 - Data Collector Modules Cat. No.
Chapter 1 The Enpac 2500 Data Collector 6. Use the default location. 7. Click Next. 8. The installation procedure is ready, click Next. The Enpac OS Loader installs. 9. From the Windows Start menu, click Start > Programs > Allen-Bradley > Enpac2500 > Enpac2500 OS Loader. At the beginning of the upgrade process, a message is shown saying that the upgrade can take a long time, depending on the selections made. 10. Click OK.
The Enpac 2500 Data Collector Chapter 1 The option to Backup any Module Data, for example, Balance jobs or .wav file recordings. 11. Decide if you need to backup data. TIP We recommend that you click yes to backup your data. Next, you are given the option to backup any Routes. TIP We recommend that before you decide to backup any routes, upload your data to Emonitor just in case there is an error with the firmware installation, such as a cable disconnect. 12. Decide if you need to backup Routes.
Chapter 1 The Enpac 2500 Data Collector At this stage, you can see the OS programming occur on the unit. Remember that this process can take some time. You should see the firmware upgrade appear on the Enpac 2500 screen. Once the programming of the new OS is complete, you need to perform a Hard reset/Cold reboot. See Restarting the Data Collector on page 57. 13. Click OK. 14. Disconnect the USB cable. 15. Reconnect the USB cable to re-establish ActiveSync. 16. Click OK.
The Enpac 2500 Data Collector Chapter 1 The OS Loader then completes the final stages of the upgrading the Firmware, by automatically restoring any backed up files, for example, Calibration Data, License Files, and Module Data and Routes. 17. Determine if you need to install any modules. 18. Choose to install All Modules (Yes to All) or individually (Yes/No).
Chapter 1 The Enpac 2500 Data Collector Module Licensing Any Modules that were licensed prior to the upgrade will still be licensed. Any Modules that are installed, but which have not been licensed will appear greyed out as unavailable. To active greyed-out modules, contact your contact your local Allen-Bradley distributor or Rockwell Automation sales representative. Use the table Data Collector Modules on page 51 to identify what modules you need to order.
The Enpac 2500 Data Collector Restarting the Data Collector Chapter 1 You should restart the Enpac 2500 data collector if the instrument locks up and does not respond to any key presses including the On/Off key. When you need to reset the data collector you can perform a hard or soft reset. A hard reset resets the defaults vales of the date, time, and time zone. A soft reset keeps the current values. A reset does not delete data or Routes.
Chapter 1 The Enpac 2500 Data Collector IMPORTANT A hardware reset can also initiate the Engineer Mode Menu. See Engineer Mode Menu Screen on page 37 for more information. Follow these steps to replace the battery. 1. Using a flat head screwdriver, remove the two latch screws on the battery access panel. 2. Remove the battery access panel. 3. Press the Reset button using a 1/16th inch diameter pin or a straightened paper clip. 4. Replace the battery access panel and tighten the two screws.
The Enpac 2500 Data Collector Adding Applications to the Enpac 2500 Data Collector Chapter 1 The Enpac 2500 data collector uses the Extension Manager to install and uninstall application extensions and functions that are licensed and sold separately from the basic entry level product (for example, Balancing and Two Channel). The installation cards that you receive from Rockwell Automation will work with any Enpac 2500 data collector.
Chapter 1 60 The Enpac 2500 Data Collector Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Chapter 2 Setting Up Measurements This chapter describes setting up the measurement definitions in Emonitor to use with the Enpac 2500. Measurement definitions define how to collect and store measurements. You can create several different types of measurement definitions at each location. Emonitor can then take advantage of the abilities of your data collector by combining some of the measurement definitions when you load them into the data collector.
Chapter 2 Setting Up Measurements Measurement Definition Options These topics describe the available selections for setting up measurement definitions in Emonitor. You determine these selections by choosing Tools > Set Active Collectors in Emonitor. Figure 7 - Set active collectors The names of the active data collectors appear in inverse text. IMPORTANT If no data collectors are active, the selections that appear in the Measurement Definition pane are the ones available to ALL data collectors.
Setting Up Measurements Chapter 2 or more active data collectors, you may not see all the selections available for the Enpac. Measurement Filters Emonitor and Enpac 2500 each support certain measurement filters. Some of the filters are supported in both Emonitor and Enpac 2500. You can define custom band filters (high pass, low pass, band pass) by creating a new band filter using Setup > Band Filter.
Chapter 2 Setting Up Measurements gSE Filters Use a gSE filter to detect bearing and other component defects. The gSE filters provide a demodulated measurement similar to the envelope measurements in other instruments. You can use gSE filters with the following measurement definitions: • Magnitude • Spectrum These six gSE filters are available in the Enpac 2500. If you select the Envelope filter, Emonitor automatically picks the 5 kHz gSE filter.
Setting Up Measurements IMPORTANT Chapter 2 The Datapac Emulation parameter in the Data Collector Advanced Settings dialog (Setup > Data Collector) in Emonitor must be set to No. See Table 31 on page 100 for more information. High Pass Filters Use a high pass filter to remove high vibration, low frequency signal components that would dominate the signal. Examples include structural vibration or signal components generated by an integrator.
Chapter 2 Setting Up Measurements Order (magnitude) Filters Use order filters to define the bands around orders for magnitude and magnitude+phase measurements. You define these filters using Setup > Band Filter. You can use order filters with the following measurement definitions: • Magnitude • Spectrum You can define and use order filters for the first through the eighth orders with the Enpac 2500.
Setting Up Measurements Chapter 2 Emonitor chooses an overall filter with one of the low frequency cutoffs shown in the table below. It uses the filter whose cutoff is less than the result of the formula. Integrated (A to V, A to D, V to D) Non-integrated (A, V, and D) 5.30 Hz (318 CPM) 2.67 Hz (160.2 CPM) 23.80 Hz (1428 CPM) EXAMPLE 2----------------------------------------- 120,000 CPM240000 = ------------------ = 600 CPM = 10 Hz 400 lines 400 ATTENTION: Emonitor uses the 5.
Chapter 2 Setting Up Measurements IMPORTANT The available filters in Emonitor depend on the data collectors you select as active data collectors using Tools > Set Active Collectors. If you have two or more active data collectors, you may not see all the selections available for the Enpac. If you have no active data collectors, you see all the selections for every data collector, not just the selections for the Enpac.
Setting Up Measurements Chapter 2 The Enpac 2500 can collect data for English units, Metric units, or Decibels. It uses the units that you select in Emonitor. You can select units from a single system (for example, English g, in/sec, etc.), or you can mix units from different systems (for example, English gs, in/sec and Metric m/s2, m/sec) in one list. The Enpac 2500 loads the exact text string from Emonitor. The signal detection type (peak, rms, true peak, etc.
Chapter 2 Setting Up Measurements The figures in a typical measurement setup in the following sections refer to making selections in these dialogs. For example, a table for STD (HZ) 2000 collection specification would look like this.
Setting Up Measurements Chapter 2 Measurement Window Types The measurement window type is part of the collection specification (Setup > Collection). See Setting Up Collection Specifications on page 69. You select the collection specification when you set up the measurement definition. Emonitor and the Enpac 2500 support the following measurement window types.
Chapter 2 Setting Up Measurements • True Peak - Use to detect impacts and random transients. The dynamic time signal contains the absolute value of the largest peak (positive or negative) within a specified time window. Returns a magnitude value only. If used with a spectrum measurement, Emonitor uses a Peak signal detection type instead. This value is not calculated but is measured directly. • True Peak-Peak - Use to detect impacts and random transients.
Setting Up Measurements Chapter 2 Measurement Resolution The measurement resolution is part of the collection specification (Setup > Collection). See Setting Up Collection Specifications on page 69. You select the collection specification when you set up the measurement definition. Emonitor and the Enpac 2500 support the following resolutions.
Chapter 2 Setting Up Measurements Next, find the total collection time for the time waveform measurement using this formula. spectral lines collection time = ------------------------------Fmax (Hz) EXAMPLE If you had a Maximum frequency value of 7200 CPM and a Number of lines value of 400, you would: ATTENTION: 1. Convert CPM to Hz. 7200 CPM------------------------= 120 Hz 60 ATTENTION: 2. Find the total collection time. 400 lines --------------------= 3.
Setting Up Measurements Chapter 2 Order Normalization for Orders Track Spectrum There are two requirements for implementing Orders Track measurements. The Fmax value must fall within the range of 10…5000 Hz, and the machine speed may not vary by more than 10% during the measurement collection. For example, if you set up a machine that runs at 3500 RPM for an Fmax of 100 Orders, the measurement will not work because the required Fmax is 15,000 Hz.
Chapter 2 Setting Up Measurements For Orders Track data collection, you are required to use a trigger to continually determine machine speed. Orders tracking analysis can be used effectively to diagnose the vibrations of variable speed machines. The orders tracking yields data in the revolution domain, not the time domain. In an orders spectrum, signals that are periodic in the revolution domain appear as peaks and orders or harmonic components remain fixed in their position through speed changes.
Setting Up Measurements Chapter 2 You can choose a frequency reference item as your machine speed reference. This allows for machine speeds to be stored and retrieved dynamically. The Enpac supports two types of frequency types: speed reference and linear rotational. If you want to use a collected measurement from the Enpac to set the machine speed, you have two options. • Use a manual entry process measurement to enter machine speed by reading it from any instrument in your plant.
Chapter 2 Setting Up Measurements There are three ways to obtain a speed references. • You can enter a constant for the speed. • You can use the value in the Machine Speed column for a location on an item in the Hierarchy Tree. • You can use the value from a process measurement as the speed. Press F1 to find out more information about each option in the Speed Reference Frequency dialog.
Setting Up Measurements Chapter 2 Magnitude Measurement Definitions Emonitor and the Enpac 2500 support magnitude measurement definitions. This topic lists the unique characteristics of the Enpac 2500 that you may need to know when setting up and collecting magnitude data. Measurement Units Not Supported in the Enpac 2500 Data Collector • Magnitude measurement definitions with unit not supported by the Enpac 2500 map to units of USER (eus) in the data collector.
Chapter 2 Setting Up Measurements • Set up a Collection Specification with Transducer set to the AC displacement and Signal detection set to Peak-peak. • Finish setting up the dynamic proximity probe measurement by setting Data Type to Magnitude and Units to mils or um. You can use a Filter if desired. Static (DC) component or gap • Set up a displacement transducer in the Transducer Calibration dialog with Input type set to ‘DC Coupled’ and Units set to mils or um.
Setting Up Measurements Chapter 2 Figure 14 - Magnitude with Multiple Frequency Bands Measurement Definitions The filter specifications are shown in the table below: Table 19 - Filter Specifications for Magnitude with Multiple Frequencies Name Low Cutoff High Cutoff Data collector filter type 0.8-1.2 Order 0.8 Orders 1.2 Orders None 1.2-3.5 Order 1.2 Orders 3.5 Orders None 3.5-8.5 Order 3.5 Orders 8.5 Orders None 8.5-50% Fmax 8.
Chapter 2 Setting Up Measurements • Phase and magnitude measurements at orders require a trigger signal. This can be from the internal laser tachometer or from an external trigger source such as a key phasor. To Set Up Multiple Measurement Definitions for Magnitude and Phase You create only one measurement definition for magnitude and phase at each order.
Setting Up Measurements Chapter 2 Typical Magnitude and Phase Measurement Definitions this is what the Measurement Definition pane for one through four orders might look like. All measurement definitions have the same units and collection specification. Figure 15 - Magnitude and Phase Measurement Definitions The following table shows the collection specification for Mag & Phase.
Chapter 2 Setting Up Measurements Numeric (process) Measurement Definitions Emonitor and the Enpac 2500 support numeric measurement definitions. This topic lists the unique characteristics of the Enpac 2500 that you may need to know when setting up and collecting numeric data. Measurements Units Not Supported in the Enpac 2500 Data Collector • You can make a numeric measurement definition for any available measurement unit by setting Data Type to ‘Numeric.
Setting Up Measurements Chapter 2 Machine Speed (RPM) Measurements • Set up a tachometer measurement definition by setting Data Type to ‘Numeric’ and Units to ‘RPM,’ ‘CPM,’ or ‘Hz.’ • Set up the tachometer transducer in the Transducer Calibration dialog with Input type set to ‘ICP Accel’ for either the internal laser tachometer or an external TTL device (such as entach laser sensor, an optical trigger, or a strobe light with TTL output).
Chapter 2 Setting Up Measurements The following table shows the transducer specifications in the collection specifications. Table 24 - Transducer Specifications in Numeric Collection Specifications Name Base Unit Input Type Units Calibration Value(1) DC Offset Temperature Temperature DC Coupled deg. F See note below. 0 Tachometer Frequency DC Coupled RPM See note below. 0 Manual Entry None Manual Entry None See note below.
Setting Up Measurements Chapter 2 Order Normalized Spectra in the Enpac 2500 Data Collector • Order normalized spectrum measurements have a frequency axis based on multiples of the running speed (orders). This quickly identifies the frequency relationship between each measured vibration amplitude and the running speed of the machine. It is particularly useful on variable speed machinery. • An order normalized spectrum measurement requires a trigger input to the Enpac 2500.
Chapter 2 Setting Up Measurements Spectrum Alarms in the Enpac 2500 Data Collector The Enpac 2500 supports band alarms with up to ten bands. • You can have the data collector collect a spectrum measurement if a magnitude alarm is in alarm. Set the Collect and store condition in the Edit Storage Specification dialog to ‘On Magnitude Alarm’ for the storage specification for the spectrum measurement definition.
Setting Up Measurements Chapter 2 Time Waveform Measurement Definitions Emonitor and the Enpac support time waveform measurement definitions. This topic lists the unique characteristics of the Enpac that you may need to know when setting up and collecting time waveform data. • The Enpac 2500 cannot collect phase with time waveform measurement definitions. • You can choose to have the Enpac collect a time waveform only if a magnitude measurement at the same location is in alarm.
Chapter 2 Setting Up Measurements Next, find the total collection time for the time waveform measurement using this formula. spectral lines collection time = ------------------------------Fmax (Hz) EXAMPLE If you had a Maximum frequency value of 7200 CPM and a Number of lines value of 400, you would: ATTENTION: 1. Convert CPM to Hz. 7200 CPM------------------------= 120 Hz 60 ATTENTION: 2. Find the total collection time. 400 lines --------------------= 3.
Setting Up Measurements Chapter 2 The following table shows the collection specification. Table 27 - Collection Specification for Time Waveform Measurement Definition Transducer Window Signal Detection Fmax Lines Phase Order Norm? Averages Accelerometer Hanning Peak 2 kHz 400 No No 1 linear The following table shows the transducer specification in the collection specification.
Chapter 2 Setting Up Measurements Voltage Measurement Definitions Emonitor and the Enpac support measurement definitions with units of volts (AC or DC). You can collect several different types of voltage measurements. This topic shows the typical measurement definition setup for three voltage measurements. Voltage is similar to other units in that you can collect magnitude, numeric, spectrum, and time waveform voltage measurements.
Setting Up Measurements Chapter 2 Combining Measurement Definitions for a Location You can use Emonitor to set up many different measurement definitions for data collection at a location. These can include magnitude, spectrum, time waveform, and numeric measurements. You can then select the measurement definitions you want to load to the data collector by creating a list of those measurement definitions.
Chapter 2 Setting Up Measurements Setting Up Tri-axial Measurements You can set up and collect tri-axial measurements with the Enpac 2500 if you have a tri-axial transducer and a special tri-axial cable for your Enpac. This allows you to collect measurements in three directions without moving the transducer. Tri-axial measurements require setting up separate locations, and measurement definitions for each of the three transducers. This section shows the method for setting up these measurements.
Setting Up Measurements Chapter 2 This figure shows the typical measurement location setup for tri-axial measurements. Figure 20 - Tri-axial Measurement Location Setup Setting Up Alarms, Lists, and Inspection Codes This section describes the way Emonitor loads alarms, lists, and inspection codes into the Enpac 2500. For more information on alarms, lists, and inspection codes, see the Emonitor online help.
Chapter 2 Setting Up Measurements For unsupported alarms, Emonitor tests the measurements against the alarms when you unload the data collector. This means that Emonitor always accurately indicates when a measurement is in alarm, regardless of the number or complexity of the alarm(s). This is true for all active alarms, regardless of their trigger status. Lists and the Data Collector Emonitor and the Enpac 2500 support loading lists of measurement definitions to the data collector.
Chapter 3 Loading and Unloading This chapter describes using the Enpac 2500 with Emonitor to load and unload lists. Topic Page Setting Up for Communication 97 Loading Lists to the Data Collector 106 Unloading Lists from the Data Collector 113 IMPORTANT Setting Up for Communication For more information about loading lists and the Load/Unload dialog, refer to the Emonitor online help. This section describes the steps to set up communication both in Emonitor and in your data collector.
Chapter 3 Loading and Unloading Figure 21 - Load/Unload Dialog Box Click to set data collector communication options. Click to set computer communication options. Set Up the Current Data Collector in Emonitor You can have several active data collectors in Emonitor. However, you must select one specific data collector before you load a list. The data collector you select is called the current data collector.
Loading and Unloading Chapter 3 3. The Current column shows the word ‘Yes’ for the current data collector. To make the Enpac 2500 the current data collector, move to the Current column for the Enpac 2500. Press Enter or double-click in the column to change the word from ‘No’ to ‘Yes.’ The previously selected data collector automatically changes to ‘No.’ 4. Move to the Baud column in the Enpac 2500 row and set the Baud rate to the same baud rate you select in the Enpac 2500.
Chapter 3 Loading and Unloading 8. Click OK when finished. Use the descriptions in this table to help you configure the parameters in the Advanced Settings dialog. Table 31 - Data Collector Advanced Settings Parameters 100 Parameter Name Description Values/Comments Operating System Sets the operating system version of the data collector. 2CHEnable Enables Emonitor to download measurements configured for 2- Options: Yes channel collection.
Loading and Unloading Chapter 3 Set Up Computer Communication Options in Emonitor Before you can load a list into the Enpac 2500, you must first set up the computer communication options in Emonitor. Once you select these communication options, you should not have to change them again unless you change your computer hardware. 1. Choose Tools > Load/Unload. 2. Click the large Set Up Computer button in the Load/Unload dialog. The Set Up Computer dialog appears. 3.
Chapter 3 Loading and Unloading Set Up the Data Collector for Communication After setting the computer communication options, you must set the data collector communication options. The baud rate setting in the data collector must match the baud rate setting in Emonitor. The baud rate for the Enpac 2500 is set from the Instrument Setup screen. 1. Power up the Enpac 2500 by pressing the ON/OFF key. 2. Select Setup Utility from the Main Menu and press the READ/OK key. The Setup screen appears. 3.
Loading and Unloading Chapter 3 Figure 22 - Diagram of Hardware Connection 3. When the data collector is properly connected to the computer, the cable connection icon in the Load/Unload dialog changes from ‘not connected‘ to ‘connected‘. And a communication dialog opens in the Enpac. This dialog remains open until you close the Load/Unload dialog in Emonitor or press the READ/OK key on the Enpac. Using the USB Port You can use your computers USB port to load lists and unload data from the Enpac 2500.
Chapter 3 Loading and Unloading 2. Plug the USB end of the power splitter cable into the USB port on your computer. Figure 23 - Diagram of USB Connection 3. If the ActiveSync or the Get Connected window is not open already on the PC, follow these steps. • Select Start > Programs > MicrosoftActiveSync on the computer. The AcitveSync window opens. • In the ActiveSync window, select Get Connected from the File menu. The Get Connected window opens. 4. In the Get Connected window, click Next. 5.
Loading and Unloading Chapter 3 8. When the data collector is properly connected to the USB port, the cable connection icon in the Load/Unload dialog changes from ‘not connected‘ to ‘connected‘. TIP If the cable connection icon does not change, try closing and reopening the Load/Unload dialog box. And the Enpac displays the message ‘Busy... Communications in progress...‘. The communication message remains on the screen until you close TIP the Load/Unload dialog in Emonitor. 9.
Chapter 3 Loading and Unloading Loading Lists to the Data Collector After you connect the data collector to the computer, you can load one or more lists to the data collector. This section discusses preparing and initializing the data collector, loading inspection codes, selecting the list, and other load options. IMPORTANT When loading large lists to the Enpac 2500, recommended practice is to connect the power supply to the Enpac 2500.
Loading and Unloading Chapter 3 Initializing the Data Collector before Loading If data already exists in the data collector but you do not need it anymore, you can erase the data by initializing the data collectors memory using Emonitor. Make sure that you no longer need the data before deleting it. TIP You initialize the Enpac internal memory and memory card separately. This is determined by the Route Memory setting in the Setup screen.
Chapter 3 Loading and Unloading To Manually Initialize the Data Collector Any Time You must have the Enpac 2500 connected to the computer. You can also use the Enpac 2500 to initialize memory. TIP If you are manually initializing the memory card, you must also have the card in the drive. Refer to Inserting and Removing a Memory Card on page 48. 1. Choose Tools > Load/Unload. 2. Click the D.C. Functions button in the Load/Unload dialog. The Data Collector Functions dialog appears. 3.
Loading and Unloading Chapter 3 Loading Inspection Codes Emonitor and the Enpac support loading inspection codes with a list. The Enpac stores inspection codes with a loaded list. You can only load inspection codes with a list. 1. Choose Tools > Load/Unload. 2. Click the Load Options button in the Load/Unload dialog. The Load Options dialog appears. Check to load inspection codes. 3. Check the Load Inspection Codes checkbox. 4. Click OK. Now inspection codes will be loaded with your lists.
Chapter 3 Loading and Unloading Overriding the Collect on Alarm Setting Emonitor allows you to collect and store a spectrum or time waveform when a magnitude measurement at the same location is in alarm. You do this by setting the Collect and store condition in the storage specification for a spectrum measurement definition to ‘On Magnitude Alarm.’ At some point you may want to collect a spectrum or time waveform even when the magnitude measurement is not in alarm.
Loading and Unloading Chapter 3 Selecting the List(s) Emonitor and the Enpac support loading more than one list at a time, so you may select more than one list to load. The size of the lists limits the number of lists you can load at one time. 1. Choose Tools > Load/Unload. 2. Make sure the data collector and computer are connected. If not, see Connecting the Data Collector and Computer (RS-232) on page 102. 3.
Chapter 3 Loading and Unloading Displaying the Data Collector Driver Version Number The data collector driver is the software that allows Emonitor to communicate with the Enpac. You can display the data collector driver version number in Emonitor. 1. Choose Tools > Load/Unload. The Load/Unload dialog appears. 2. Make sure the correct data collector appears in the Set Up Collector button. If not, see Connecting the Data Collector and Computer (RS-232) on page 102. 3. Click the D.C. Function button.
Loading and Unloading Unloading Lists from the Data Collector Chapter 3 Once you collect data you can unload it for storage in your Emonitor database by connecting the Enpac and computer and transferring the information. You can unload unscheduled measurements to your Emonitor database at the same time as list data. You can automatically print reports after unloading data from the data collector.
Chapter 3 Loading and Unloading Unloading Multiple Measurements Points in Emonitor With the Enpac, you can collect multiple readings for a single measurement definition. All of the data for each measurement definition can be unloaded to the Emonitor database. 1. Click the Unload Options button in the Load/Unload dialog. The Unload Options dialog appears. 2. Select Unload all readings. 3. Click OK.
Loading and Unloading Chapter 3 Unloading Unscheduled (off route) Data from the Enpac 2500 Data Collector Unscheduled measurements are measurements that are taken with the Off Route function in the Enpac. They are called off route measurements in the data collector. See the Emonitor online help for more information on setting the Unscheduled Measurement Destination. You can unload the unscheduled measurements automatically when unloading a list. 1.
Chapter 3 Loading and Unloading If Emonitor can match the unscheduled data to an item in the Hierarchy Tree and a location, then it stores the unscheduled data in measurement definitions under that location. If Emonitor cannot match the data with an existing measurement definition, then it creates a new measurement definition and stores the data there.
Loading and Unloading Chapter 3 Automatically Printing Reports after Unloading You can select reports to automatically send to a printer after unloading data from the Enpac. The reports contain information on the list of measurements unloaded. See the Emonitor online help for more information on printing reports and plots. 1. Choose Tools > Load/Unload. The Load/Unload dialog appears. 2. Make sure the correct data collector appears in the Set up collector button.
Chapter 3 Loading and Unloading Notes: 118 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Chapter 4 Collecting and Reviewing Data The Enpac 2500 data collector lets you to collect a list of measurement definitions, data for points in a list (route) and for unscheduled data (points not defined in a route). Once you collect your data, you can review the data on the screen or save it to a storage card. You can then unload the data from the route into the Emonitor database for storage and analysis.
Chapter 4 Collecting and Reviewing Data Connect a Transducer to the Data Collector WARNING: To prevent damage to the cable and cable pins, take care when connecting the transducer to the data collector. Follow these steps to connect a transducer to the data collector. 1. Match the red dot on the connector to the red dot on the data collector. 2. Insert the transducer cable into either Connector CH1 or CH2 on the data collector. Do not turn or twist the connector.
Collecting and Reviewing Data Collecting Route Data Chapter 4 This section explains how to collect list (route) data using the Enpac 2500 data collector. Using your predictive maintenance software, you can load a list to the data collector to organize your data collection, then collect data for the measurement definitions in the list (route). Once you have prepared the instrument for data collection you are ready to select a route and collect data.
Chapter 4 Collecting and Reviewing Data The Data Collection screen appears. Depending on what you have configured in Emonitor, each of these parameters may offer more selections when you press the Right arrow. For example, if you select the Location parameter and press the Right arrow you will be taken to the Select Location Screen.
Collecting and Reviewing Data Chapter 4 Follow these steps to move to another a measurement or machine. 1. Select the desired hierarchy level (Plant, Train, Machine, and Location). 2. Press the Right arrow key. A selection screen appears. A checkmark next to the item indicates that a measurement has been stored. TIP The Selection screen does not appear if you set Navigation to DataPac in the Setup screen.
Chapter 4 Collecting and Reviewing Data Start Data Collection After setting the data collector options and selecting a route, you are now ready to start data collection. Follow these steps to start collecting data. 1. Once you have selected a list, you begin collecting data from the designated point on the route. 2. Connect the transducer and press Enter to start a measurement. 3.
Collecting and Reviewing Data Chapter 4 Bias Check The Bias function checks the bias of the transducer before taking the measurement. There are two options for the Bias Check parameter, Automatic and Manual. When you are in the Route Hierarchy, you can check the bias voltage for ICP measurements manually by pressing 0 (Shift)+2 (B). This turns on the ICP supply (if it wasn't already) and measures the DC bias voltage for each channel used by this measurement. Channel X for single channel points.
Chapter 4 Collecting and Reviewing Data Select Inspection Codes Inspection codes let you document operating conditions while collecting data. You must load the inspection codes into the Enpac 2500 data collector when you load a list. Only those inspection codes loaded with a list are available for that list. Using the Emonitor software, you can load up to 100 inspection codes per list. The data collector lets you to store up to six inspection codes with each measurement point.
Collecting and Reviewing Data Chapter 4 Manually Enter a Numeric Measurement Using a route that is configured the Emonitor software, the data collector displays a field on the Collecting Data screen that lets you type in a value for a reading. Follow these steps to manually enter a numeric measurement. 1. In the Emonitor Software, create a Manual route and upload to the data collector.
Chapter 4 Collecting and Reviewing Data Collect a Process DC Voltage Measurement Once you have created a route in the Emonitor Software and uploaded it to the data collector you can begin to take the measurement. See the Emonitor User Manual, publication EMONTR-UM001 for information about creating routes and loading them into the data collector. Follow these steps to collect a Process DC voltage measurement. 1. Attach the DC voltage input to the data collector and correct location. 2.
Collecting and Reviewing Data Chapter 4 Alarms appear when there is an alarm condition, such as the removal of a sensor on Channel X. 4. Once the reading is steady and the input signal is not overloading the data collector, press Enter to accept the measured value. IMPORTANT TIP You do not need to press Enter if you set Auto Store to On in the Instrument Configuration screen. The data collector automatically ranges and collects the measurement. See Instrument Configuration Parameters on page 44.
Chapter 4 Collecting and Reviewing Data The Magnitude Measurement screen appears. A graphic appears on the screen while the data collector ranges the data. The data collector continually updates the magnitude value for the measurement. 4. Once the magnitude reading is steady and the input signal is not overloading the data collector, press Enter to accept the measured value. IMPORTANT You do not need to press Enter if you set Auto Store to On in the Instrument Configuration screen.
Collecting and Reviewing Data Chapter 4 A typical spectrum could have 400 lines although the data collector lets you to select a smaller or larger number of lines. The higher the lines, the higher the resolution, and the longer it takes the data collector to acquire the data for a spectrum. Lines of resolution, Fmax, and number of averages all affect the length of time it takes to acquire and process a spectrum.
Chapter 4 Collecting and Reviewing Data Figure 24 - Spectrum Overall Value Alarm Indicator Current Cursor Frequency and Amplitude Percentage Difference from Previous Measurement Previous Measurement Indicators Point information: Machine Name Point ID Point Description Alarm Condition View / add Coded and Set Cursor Frequency as Type-in Notes Running speed Retake the Leave without Measurement Storing Data 4. When finished viewing the spectrum, press Enter to proceed to the next point in the list.
Collecting and Reviewing Data Chapter 4 Table 34 - Spectrum Keying Descriptions Keying Description Percentage changed The spectrum displays a percentage changed bar. It provides an overall value of the current measurement in comparison to alert and danger alarms. These colored arrows display if the point is in an alarm state (red), in an alert (yellow) or if there is no alarm (green). If the measurement amplitude extends beyond the display, an overall overflow indicator appears at the top of the bar.
Chapter 4 Collecting and Reviewing Data Collect a Time Waveform Measurement Time waveform plots display a short time sample of a raw vibration signal with vibration amplitude plotted over the time scale. Time waveform data appears on a plot similar to the spectrum display screen. Follow these steps to collect a time waveform measurement. 1. Attach the transducer to the correct location. 2. From the Data Collection screen, press Enter to begin ranging the measurement.
Collecting and Reviewing Data Chapter 4 Collect Magnitude and Phase Measurements at Orders The Enpac 2500 data collector can collect multiple magnitude and phase at orders of the operating speed. You use a tachometer signal measuring the operating speed to collect phase data. Follow these instructions to collect a spectrum for calculating additional magnitude and phase values at orders of the operating speed. 1.
Chapter 4 Collecting and Reviewing Data • If Fast Averaging is set to Off, the data collector displays the spectrum while collecting the averages. The number of averages appears in the middle of the screen. 3. Press 0 (Shift) to display more functions and press F4 (View). 4. Press Enter to continue to the next point. See Review Data on page 153 for more information about the Signature Spectrum. Exceptions Two exceptions exist for combining measurement definitions.
Collecting and Reviewing Data Chapter 4 Collect Multiple Measurements for a Point The data collector lets you to collect multiple readings for a single measurement point. When collecting data, its possible to take new data for a point that already has stored data and append it to the existing data records. If more than one data record has been collected for a point, you have the option to review each data record separately, or view all data records simultaneously as a waterfall plot.
Chapter 4 Collecting and Reviewing Data Collecting Offroute Data The Offroute program lets you to collect data that is not part of a list (route). While collecting list data, you may notice some unusual conditions that you want to analyze further. You may also want to collect data for undefined points (points not in your database), or existing points that are not in your current list (route). The Enpac 2500 data collector always associates Offroute measurements with a list.
Collecting and Reviewing Data Chapter 4 Collect Offroute Data using a Pre-defined Measurement The Enpac 2500 data collector provides seven pre-defined measurements for you to use to collect Offroute data. These are the data collectors pre-defined measurements. Table 35 - Pre-defined Measurements Measurement Description Same Uses the same setup as the current point. Opposite Uses the opposite setup as the current point. For example, spectrum is time, time is spectrum.
Chapter 4 Collecting and Reviewing Data The Offroute measurement screen appears. 4. Select the a pre-defined measurement icon to store an Offroute measurement at the current point. 5. Connect the a transducer and press Enter to start the measurement. The measurement screen appears. 6. For manual entry points, enter the magnitude value with the numeric key pad. 7. If desired, press F3 (Notes) to assign inspection codes to each point.
Collecting and Reviewing Data Chapter 4 Create and Collect a User-defined Point The Offroute program lets set up and collect any type of Offroute measurement point. The Enpac 2500 data collector keeps the user-defined parameters until you collect another measurement point or press F2 (Default) on the Offroute User screen. Table 36 - Types of Offroute Measurements Type Description Same The measurement configuration is based upon the most recently selected measurement in the Route Manager.
Chapter 4 Collecting and Reviewing Data Table 36 - Types of Offroute Measurements 142 Type Description Velocity Performs a standard acceleration to velocity vibration measurement. These are the settings for the measurement parameters. Parameter Value Display Format Spectrum Units A -> V High-pass frequency 1.1 Hz Input Channel X Fmax 1 kHz Lines/Samples 400 Lines Averages 4 Overlap 50% Type Spectral Ext.
Collecting and Reviewing Data Chapter 4 Table 36 - Types of Offroute Measurements Type Description Accel Time Performs a standard vibration Acceleration measurement and collects waveform data. These are the settings for the measurement parameters. High Res. Parameter Value Display Format Time Units Accel (G) High-pass frequency 1.
Chapter 4 Collecting and Reviewing Data Table 36 - Types of Offroute Measurements Type Description gSE Performs a standard vibration Acceleration measurement and collects waveform data. These are the settings for the measurement parameters. Parameter Value Units Enveloped Acceleration Display Format Spectrum Band High-pass frequency gSE BPF 5 kHz Fmax 10kHz Lines/Samples 400 Averages 4 Input Channel X Overlap 50% Ext.
Collecting and Reviewing Data Chapter 4 The Offroute measurement screen appears. Press F2 (User) to Create a User-defined Point 4. Press F2 (User). The Offroute User screen appears. 5. Select a parameter you want to change and press the Right arrow key to open the menu of choices. 6. Select your choice by using the arrow keys, or typing in a value using the numeric key pad. 7. Press the Left arrow key to save your choices.
Chapter 4 Collecting and Reviewing Data Use the descriptions in this table to help you configure the parameters in the Offroute User screen. Table 37 - Offroute User Parameters Parameter Name Description Values/Comments Change Name Changes the name of the user-defined measurement point. Select the hierarchy level for which you want to change the name. A window opens at the bottom of the screen. Use the numeric key pad to enter a new name and press F2 (OK).
Collecting and Reviewing Data Chapter 4 Table 37 - Offroute User Parameters Parameter Name Description Values/Comments Input channel Maps the input channel to the LEMO connectors on the top of the Enpac 2500 data collector. Input channel X maps to Connector CH1 (pin 2): • Input channel Y maps to Connector CH2 (pin 2); it is also linked to Connector A (pin 6).
Chapter 4 Collecting and Reviewing Data Table 37 - Offroute User Parameters Parameter Name Description Values/Comments Window Type of window to be applied to the waveform measurement prior to computing the spectrum Hanning (default), Hamming, Flat Top, Rectangular Window Description Hanning A general purpose window to use on random type data when frequency resolution is more important than amplitude accuracy. Use this setting for most of your machinery monitoring activities.
Collecting and Reviewing Data Chapter 4 5. Once the Enpac 2500 data collector collects the measurement, press Enter to accept the measurement. The green status indicator illuminates when the measurement is complete. The measurement is stored as an Offroute measurement at the current point. The Offroute screen reappears. 6. Press F4 (Esc) screen to return to the Data Collection screen.
Chapter 4 Collecting and Reviewing Data If you do not have the unscheduled location smart mode checked, Emonitor stores unscheduled data in the unscheduled destination in the hierarchy tree of the database. You set the unscheduled destination with Tools > Set Unscheduled Dest. See Emonitor online help for more information. Changing Display View Use the View function to determine how to view FFT (Spectrum) and Time waveform data. Follow these steps to view FFT and Time data. 1.
Collecting and Reviewing Data Reviewing Data Chapter 4 There are several functions available for viewing, analyzing overall and signature data in the data collector. The data collection screen appears after you select a Route to review. #6 of 10 Measurements Taken Review Route Measurements Take Offroute Measurements Review Route Data Follow these steps to review previously collected route data. 1. From the Route Manager screen, select a route and press Enter. 2.
Chapter 4 Collecting and Reviewing Data Review Offroute Data Follow these steps to review previously collected Offroute data. 1. From the Route Manager screen, select a route and press Enter. 2. Press F2 (Offroute). The Offroute screen appears. 3. Press F1 (Review) to review the Offroute data. The Review Data screen appears. 4. Select a point to review and press Enter or F2 (Review). If the point has more than one measurement, you can press Enter, F2 (Next) or F1 (Previous) to the next measurement.
Collecting and Reviewing Data Chapter 4 Review Data The Review Data screen lets you view the four types of measurements. • • • • Spectrum Time waveform Magnitude and phase orders Overall value Follow these steps to the review data. 1. From the Route Manager, select a route and press Enter. 2. Press F1 (Review). The Review Data screen appears. Full Scale Range Current Signal Amplitude Last Recorded Value % Changed from Last Recorded Value to the Current Reading 3.
Chapter 4 Collecting and Reviewing Data 4. Press F1 (Help). 5. Press F2 (Pt. Info).
Collecting and Reviewing Data Chapter 4 Use Diagnostic Frequency Cursors with a Spectrum When frequency items are loaded with a list from Emonitor, the data collector can display the frequency item that goes with the cursor. Use the Left and Right arrow keys to move to each diagnostic frequency. See Loading Frequency Labels on page 109 for more information. Moving around a Review Data Screen These are the shortcut keys for moving around a Review Data screen.
Chapter 4 Collecting and Reviewing Data Review Waterfall Spectra Data When you collect more than one spectrum for a point, the Enpac 2500 data collector can display the spectrum in a waterfall mode, one after the other. Figure 25 - Waterfall Spectral Data • Press the Left and Right arrow keys to move the frequency cursor within the spectrum plot. • Use the Up and Down arrow keys to move between the spectrum plots. TIP The Waterfall spectra data will not appear if you set Hist.
Collecting and Reviewing Data Capturing Screens Chapter 4 You can capture Enpac 2500 data collector screen images in a bitmap (.bmp) format and store them on the PCMCIA memory card. Follow these steps to capture an image to an PCMCIA memory card. 1. Display the screen that you want to capture. 2. Press the 0 key and the 7 key. The Print dialog box appears. 3. Press F2 (OK) to store the image in a.bmp format on the storage card.
Chapter 4 Collecting and Reviewing Data Notes: 158 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Chapter 5 Multi-channel Measurements Multi-channel Measurement (1441-PEN25-MOD-2CH) is a 2-Channel upgrade option where you able to set up, collect, and review orbit, cross channel phase, dual channel, and other multi-channel measurements.
Chapter 6 Multi-channel Measurements One key parameter is the measure of relative phase between two points on a machine, which is easily calculated as a cross channel measurement. Phase measurements across a coupling can easily show misalignment. Phase measurements can also be used around a bearing to determine if it is cocked. It is even possible for a significant loss of mass, such as a thrown blade, to result in little or no change in vibration amplitude, but a very clear shift in phase.
Multi-channel Measurements Chapter 6 Figure 27 - 1X Orbit Plot If the machine has unbalance only, the displayed orbit will be dominated by a once-per-revolution signal and have a circular or elliptical shape. To get a better impression of the actual shaft motion and to identify other common machine anomalies, such as misalignment, shaft whirls, rubs, and looseness, all signal frequencies are required up to several orders of shaft speed.
Chapter 6 Multi-channel Measurements To adequately define an orbit of a machine shaft, it is first necessary to know the approximate shaft speed and how many orders of the shaft speed are to be included in the measurement. A spectrum analysis (FFT) of the signals can be used to determine the number of orders. Unless the measurement is synchronized with a trigger (or a once-per-rev phase reference pulse), it is not possible to relate the orbit shape to the rotational position of the shaft.
Multi-channel Measurements Chapter 6 Figure 30 - Complex Orbit As a rub becomes more severe or continuous, then the orbit becomes more complex and possibly erratic, with bearing structural resonances being excited and multiples of subsynchronous frequencies showing up. Mechanical looseness caused by excessive wear tends to produce an orbit similar to that of a rub. Subsynchronous effects show up as secondary loops.
Chapter 6 Multi-channel Measurements The measurement definitions must be the same for both locations. The time measurement definition must be the first measurement definition in the spreadsheet. Make sure the numeric measurement definition has the same units, collection specification, and storage as the time measurement definition. • Make sure to set Data collector filter type to Analog when you define the order filters. See Measurement Filters on page 63 for more information.
Multi-channel Measurements Chapter 6 12. Move to an empty row in the Location pane and choose Edit > Paste to paste the new measurement definition into the spreadsheet. 13. Edit the new location. Make sure you change the Location ID and set Lo. Channel to 2. 14. Now include these locations in a list. You can create a new list or recall the current list. The locations must be tagged to create a group list. 15. Double-click the Group column in the Location pane to add the two locations to a group list.
Chapter 6 Multi-channel Measurements 2. Select the route and measurement point. See Select a Route on page 121 for more information. 3. Press F2 (Offroute) to collect an Offroute measurement. The Offroute screen appears. 4. Select the Orbit icon to store an Offroute orbit measurement at the current point. The Offroute Orbit Setup screen appears. 5. Select the parameter and press the Right arrow to display the choices. 6. Select the parameter with the arrow keys, or type in a value. 7.
Multi-channel Measurements Chapter 6 Use the descriptions in the table below to help you configure the options in the Offroute dialog box. The Units, Transducer, Filter, and Sensitivity apply to both channels. The two input channels are X and Y. TIP When you are finished setting up the parameters, you can collect the Offroute measurement. See Collect Orbit Measurements on page 168 for more information.
Chapter 6 Multi-channel Measurements Collect Orbit Measurements Once you have selected the route and have finished setting up the orbit Offroute parameters, you can begin collecting the data. Follow these steps to collect data. 1. Attach the transducer to the correct location. 2. Press Enter to start ranging your measurement for the current point. The Enpac 2500 ranges and collects the data. The measurement screen appears.
Multi-channel Measurements Chapter 6 3. Use the Up and Down arrows to expand and compress the orbit. 4. Press 0 (Shift) and F4 (View). 5. Select the View option to display the Time Waveform, x1, x2 or x3. 6. Select Timewave and Press F4 (View) to display the time plot. The following screen appears.
Chapter 6 Multi-channel Measurements Follow these steps to display the view options for orbit measurements. 1. Press 0 (Shift) to display the second set of functions. 2. Press F4 (View). 3. Select an options and click Apply. 4. Use the Left and Right arrows to move the frequency cursor. 5. Use the Up and Down arrows to move the amplitude cursor. The Y-axis and X-axis are synchronized, which means the cursors are in the same position on each trace in the spectrum.
Multi-channel Measurements Chapter 6 Review Route Data Follow these steps to review route data. 1. From the Route Manager screen, select the route you want to review. and press Enter. 2. Press F1 (Review). The Review Orbit screen appears. See Review Orbit Data Screen on page 172 for more information. Review Offroute Data 1. From the Route Manager screen, select the route you want to review. and press Enter. 1. Press F2 (Offroute). The Offroute screen appears. 2.
Chapter 6 Multi-channel Measurements The Review Data screen appears. 3. Select the point that you want to review and press F2 (Review). For information on orbit data, see Review Orbit Data Screen on page 172. Review Orbit Data Screen The Review Orbit Data screen lets you view the data in an orbit plot. See Understanding an Orbit Plot on page 160 for more information about orbit plots. • To expand or compress the orbit, press the Up and Down arrows.
Multi-channel Measurements Chapter 6 The cursor values appear above the signature data. IMPORTANT Cross Channel Phase Measurements The Y-axis and X-axis are synchronized, which means the cursors are in the same position on each trace in the Signature Data screen. The X and Y axis will move together, and magnify as the display is expanded. The Emonitor software and the Enpac 2500 support cross channel phase measurement definitions.
Chapter 6 Multi-channel Measurements Multi-channel Cursor, Display Expand, and Full Scale Adjustments For multi channel measurements, the cursor operates simultaneously on all traces (even if one is hidden). This is also true for Full Scale adjustments using the Up and Down arrows (amplitude axis). You can use the + and - keys to adjust the display and expand (frequency/time axis). Independent Autoranging For two channel measurements, autoranging is performed simultaneously on both channels.
Multi-channel Measurements Chapter 6 4. Set Collection to the collection specification that you created for the cross channel phase. Select a band Filter, for example, 1st Order. 5. In the Location pane, select the new location that you just created. Choose Edit > Copy to copy the location. 6. Move to an empty row in the Location pane and choose Edit > Paste to paste the new location into the spreadsheet. 7. Edit the new location. Make sure you set Lo. Channel to 2. 8. Include these locations in a list.
Chapter 6 Multi-channel Measurements Set Up an Offroute Cross Channel Phase Measurement The Cross Channel Phase Offroute measurement is configured by creating a userdefined measurement point. The Enpac 2500 keeps the user-defined parameters until you collect another measurement point or press F2 (Default) on the Offroute User screen. See Create and Collect a User-defined Point on page 141 for more information. 1. Select Data Collection from the Main Menu and press the Enter key.
Multi-channel Measurements Chapter 6 The Offroute User screen appears. 5. Select Display Format and press the Right arrow key to display the format choices. 6. Select Phase and press the Left arrow key to save your choice. 7. Select Input Channel and press the Right arrow key to display the input channel choices. 8. Select X&Y and press the Left arrow key. 9. Change the other parameters as needed. See Offroute Orbit Parameters on page 167 for assistance. 10.
Chapter 6 Multi-channel Measurements Collect a Cross Channel Phase Measurement A cross channel phase measurement displays the spectra for input channels X&Y, and the relative phase angle between the two input channels. The phase difference between the two inputs is measured. This is known as relative phase. Spectra for both input channels are stored, and the relative phase between the two channels is displayed as a table of magnitude/ phase pairs of up to 8 orders of running speed. 1.
Multi-channel Measurements Chapter 6 View Options The View options for a cross channel phase point are the following: • • • • • • • Two Chan Cross Phase: Default View Point Info Two Chan Cross Phase: Phase Details CH1(X) FFT: Default View CH1 (X) FFT: No Overall CH2 (Y) FFT: Default View CH2 (Y) FFT: No Overall The Y-axis and X-axis are synchronized, which means the cursors are in the same position on each trace in the Signature Data screen.
Chapter 6 Multi-channel Measurements Review Cross Channel Phase Data The data for you to review is displayed at the top of the Data Collection screen. Review Route Data 1. From the Route Manager screen, select the route you need to view and press Enter. 2. Press F1 (Review). IMPORTANT The Y-axis and X-axis are synchronized, which means the cursors are in the same position on each trace. The X and Y axis will move together, and magnify as the display is expanded. Review Offroute Data 1.
Multi-channel Measurements Chapter 6 The Offroute screen appears. 3. Press F1 (Review) to review Offroute data. The Review Data screen appears. 4. Select the point that you want to review and press F2 (Review). IMPORTANT The Y-axis and X-axis are synchronized, which means the cursors are in the same position on each trace in the Signature Data screen. The X and Y axis will move together, and magnify as the display is expanded.
Chapter 6 Multi-channel Measurements Two-channel Measurements The Emonitor software and the Enpac 2500 support two channel measurements definitions. Set Up Two-channel Measurement Definitions in the Emonitor Software Follow these steps to set up a two-channel measurement. 1. Set up a location in the Location pane for the two input channels. The Location Ids must be different. Set Lo. Channel for the first location to 1. And set Lo. Channel for the second location to 2.
Multi-channel Measurements Chapter 6 This figure shows a typical setup for a two-channel measurement. Figure 34 - Two-channel Measurement Definitions 9. Connect the data collector to the computer and load the list to the unit. See Loading Selected Lists to the Data Collector on page 111. 10. Once you have prepared the unit for data collection, select the route and collect the dual channel measurement.
Chapter 6 Multi-channel Measurements The Offroute screen appears. Press F2 (User) to create a userdefined point. 4. Press F2 (User). The Offroute User screen appears. Select a display format. 5. Select Display Format and press the Right arrow to display choices. 6. Choose a Display Format and press the Left arrow to save your choice. See Offroute User Parameters on page 146 for details about the Offroute User screen.
Multi-channel Measurements Chapter 6 7. Select Input Channel and press the Right arrow to display the input channel choices. 8. Select the channel and press the Left arrow key. See External Connections on page 23 for complete information on the connectors and related channels. 9. Change the other parameters as needed. See Offroute Orbit Parameters on page 167 for assistance. You can also set the Acquisition parameter in the Instrument Configuration screen to Single Shot or Continuous.
Chapter 6 Multi-channel Measurements Magnitude and Phase Offroute Measurement Follow these steps to collect a magnitude and phase measurement Offroute. 1. From the Route Manager screen, select the route that you setup in the Emonitor software as magnitude and phase. 2. Press Enter. 3. Press F2 (Offroute). 4. Press F2 (User). 5. Set Collection to Sig Only. 6. Set Display Format to Phase.
Multi-channel Measurements Chapter 6 7. Press Enter to start taking the measurement. TIP You press F1 (Config) on the Route Manager screen to set the trigger. You can also set the trigger on the Instrument Configuration screen by pressing 0 on the Data Collection screen: • Set the trigger to Laser Tach if using the internal trigger. • Set the trigger to External if using a external trigger device. 8. Point the data collector. Notice that the Laser Tach is operational.
Chapter 6 Multi-channel Measurements Notes: 188 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Chapter 6 Installing Optional Extension Modules The data collector uses the Extension Manager to install and uninstall extension modules. These extension modules are licensed and ordered separately from the basic entry level product. Install Optional Extension Modules Topic Page Install Optional Extension Modules 189 Uninstall an Extension Module 191 Manage Extension Modules 193 The installation PCMCIA cards that you receive work with any Enpac 2500 data collector.
Chapter 6 Installing Optional Extension Modules 6. Press 0 (Shift) to display the second set of functions. Extension Manager The Extension Manager function remains on the screen for about three seconds after releasing 0 (Shift Key). 7. Press F1 (Extn Mgr). The Extension Manager screen appears. 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, a confirmation prompt appears. 10. Press F4 (OK).
Installing Optional Extension Modules Chapter 6 The new extension module appears in the list. 11. Press F4 (Esc) to exit the Extension Manager screen. Uninstall an Extension Module Follow these steps to uninstall an extension module. 1. Press 0 (Shift) from the Setup Utility screen to display the Extension Manager function. The Extension Manager function remains on the screen for about three seconds after releasing 0 (Shift). Extension Manager 2. Press F1 (Extn Mgr).
Chapter 6 Installing Optional Extension Modules The Extension Manager screen appears. This screen lists the extension modules currently installed and on the unit. 3. Select the extension module you want to uninstall and press F3 (Select). F3 (Select) toggles the selection on and off. A checkmark appears next to that extension module. 4. Press F1 (Uninstall). A confirmation message appears. 5. Make sure your installation card is inserted into the unit.
Installing Optional Extension Modules IMPORTANT Chapter 6 The extension module is uninstalled and the license on the card is released so that the card can be used to install the extension module on another Enpac 2500 data collector. If the installation card is not inserted in the data collector and no card is found or the card does not have the extension module license for the unit, you are prompted to insert the correct installation card or continue without freeing the license. 6.
Chapter 6 Installing Optional Extension Modules The F2 function key toggles between Hide and Show depending if the highlighted extension module is hidden or not. You have to exit and re-enter the Extension Manager after hiding an extension module to have the Show function appear. TIP 3. Select the extension module that you want to hide or show and press F2 (Show/Hide). TIP If you want to show or hide multiple extension modules simultaneously, highlight each extension module and press F3 (Select).
Chapter 7 Bump Test Application The Enpac 2500 Bump Test application provides the Enpac 2500 with a simple yet effective way of determining natural (or resonant) frequencies of a machine or structure. The Bump Test application is an add-on program to the Enpac 2500 and must be installed with the Bump Test PCMCIA card from Rockwell Automation. Refer to Adding Applications to the Enpac 2500 Data Collector on page 59 for installation instructions.
Chapter 7 Bump Test Application Setting Up and Collecting Bump Test Measurements This section discusses how to set up, collect, and save Bump Test measurements. Setting Up Bump Test Measurements 1. Connect the transducer to the Enpac 2500. Refer to Connect a Transducer to the Data Collector on page 120. 2. Attach the transducer(s) to the machine case or structure. 3. Select Bump Test on the Main Menu and press the READ/OK key. The Bump Test screen appears. 4.
Bump Test Application Chapter 7 6. Select the choice by pressing the arrow keys or type in a value using the numeric key pad. 7. Press the LEFT ARROW key to save your selections. 8. Press F3 (Save) to save the current settings to a file. Refer to Saving a Bump Test Setup and Measurement on page 200. Use the descriptions in this table to help you configure the Bump Test parameters.. TIP For the bump test, some of the vibration measurement settings are pre-set to simplify your setup.
Chapter 7 Bump Test Application Table 40 - Bump Test Setup Parameters 198 Parameter name Description Values/Comments Freq Range The maximum frequency for the measurement. 240000 Hz 120…2400000 CPM Frequency range depends on the X-axis units selection. Lines The number of lines (bins) of resolution for the FFT spectra. The larger the number of lines, the better the frequency resolution of the measured data in the spectra.
Bump Test Application Chapter 7 Collecting Bump Test Measurements When you are finished setting up the options, you are ready to collect Bump Test data. 1. To start collecting data, press F4 (Start) on the Bump Test - Setup screen. The Bump Test - Taking Data screen appears. 2. Using an impacting device, hit the machine. Notice the natural frequency spectral peaks displayed on the screen. Cursor Options If you need to pause the data on the screen, press F4 (Pause).
Chapter 7 Bump Test Application Saving a Bump Test Setup and Measurement The bump test setup parameters and measurements can be saved to a file which can then be recalled at a later time. You can save a bump test setup and measurement anytime the Save function is displayed on the screen. 1. Press F3 (Save). The Bump Test -Save Data screen appears. 2. Do one of the following: • To save the data to an existing file, highlight the file, and press F4 (Save). Press F2 (Yes) to overwrite the existing file.
Bump Test Application Recalling a Setup Chapter 7 You can recall a previously saved setup and use it to record another measurement. The setup may have been saved only as a setup, or may have been saved with the recorded data. Refer to Saving a Bump Test Setup and Measurement on page 200. 1. Connect the transducer to the Enpac 2500. Refer to Connect a Transducer to the Data Collector on page 120. 2. Attach the transducer(s) to the machine case or structure. 3.
Chapter 7 Bump Test Application Reviewing Bump Test Measurements You can review previously recorded measurements with the Enpac 2500. 1. Select Bump Test on the Main Menu and press the READ/OK key. The Bump Test screen appears. 2. Select Review Data and press the READ/OK key. The Bump Test - Review Data screen appears. 3. Highlight the filename that you want review and press F4 (Open).
Bump Test Application Chapter 7 The data is displayed on the screen. Refer to Collecting Bump Test Measurements on page 199 for information on how to move the cursor. 4. To print the screen, press F2 (Print). The Print Setup screen appears. 5. Connect the Enpac 2500 to a serial port on a serial printer with a 9-way plug RS-232 cable. 6. Use the arrow keys to select the desired Printer, Baud rate and image Size, then press F2 (OK). The image prints on the printer. 7.
Chapter 7 Bump Test Application Backing Up and Deleting Bump Test Files You can backup Bump Test files to a PC card or SD card, or copy the files to a host computer. You can also delete a Bump Test measurement or setup from the Enpac 2500. Backing Up Bump Test Files Follow these instructions to backup Bump Test files. 1. Insert the memory card into the PCMCIA slot in the bottom of the Enpac. Refer to Using Memory Cards on page 47. 2. Select Bump Test on the Main Menu and press the READ/OK key.
Bump Test Application Chapter 7 The appropriate Bump Test screen appears. Below is an example of the Bump Test- Review Data screen. 4. Highlight the appropriate filename or highlight ‘all’ to backup all the files. 5. Press the 0 (Shift) key and F1 (Backup) simultaneously to backup the selected file(s) to the memory card. Backs up Selected Files 6. The specified files are copied to the memory card (\Storage Card\Analyser\directory).
Chapter 7 Bump Test Application Deleting a Bump Test Measurement and Setup 1. Select Bump Test on the Main Menu and press the READ/OK key. The Bump Test screen appears. 2. Select Review Data to delete a measurement or Recall Data to delete a setup and press the READ/OK key. The appropriate Bump Test screen appears. Below is an example of the Bump Test - Load Setup screen. 3. Highlight the appropriate filename or highlight ‘all’ to delete all the files.
Bump Test Application Chapter 7 4. Press the 0 (Shift) key and F4 (Delete) simultaneously to delete the selected file(s) from the Enpac 2500. Deletes selected files A dialog appears to confirm the deletion. 5. Press F2 (Yes) to delete.
Chapter 7 Bump Test Application Notes: 208 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Chapter 8 Balancing Application The Enpac 2500 Balancing application provides a simple, direct method to balance your rotating machinery in one or two planes. You may use the internal laser tachometer in the Enpac or an external laser tachometer, optical tachometer, or strobescope for measuring phase during the balance run. This chapter describes the balancing procedures and measurements you can take with the Enpac 2500 coupled with a speed-measuring device such as a strobe light or laser tachometer.
Chapter 8 Balancing Application • The trial weight measurements are taken with a single trial weight attached to the machine at one plane or the other. The trial weight measurements are used to determine how the machine is affected by the added weight. The ideal trial weight should produce either a 30 percent change in amplitude or a 30 degree change in phase. • The residual measurements are taken with the correction weight or the correction weight and trim weights attached to the machine.
Balancing Application Chapter 8 3. Press the LEFT ARROW key to save your selection. Use the descriptions in Table 42 to help you configure the parameters in the Balance Setup screen. 4. When you are finished, press F2 (Options) to configure the advanced balancing options. Refer to Advanced Setup Parameters on page 213. Table 42 - Balance Setup Parameters Parameter Name Description Values/Comments No. of Planes Determines whether single-plane or two-plane balancing is required.
Chapter 8 Balancing Application Table 42 - Balance Setup Parameters 212 Parameter Name Description Values/Comments Length Units Sets the units used in measuring the distance between the shaft and the weight. Options: mm cm m inch (default) feet EU Movement You place weights on the rotor to balance the machine. The position of this weight is given in degrees or positions (where the total number of positions equals the number of blades or vanes) from the reference notch or mark.
Balancing Application Chapter 8 Advanced Setup Screen The Advanced Setup screen appears when you press F2 (Options) on the Balance Setup screen. The Advanced Setup screen is used to set up the measurement and enter the sensitivity of the transducer. To edit an option in this screen, follow these steps. 1. Highlight the option and press the RIGHT ARROW key to open a menu of choices. 2. Select the choice by pressing the arrow keys or type in a value using the numeric key pad. 3.
Chapter 8 Balancing Application Table 43 - Advanced Setup Parameters Parameter Name Description Values/Comments No. Averages Enter the number of averages (1 to 8) for the measurement. Default is 4 Solution Select the balancing solution. • Dynamic - The correction weights will be calculated for both planes 1 and 2. • Static-Couple - The correction weights will be calculated as a combination of Static and Couple.
Balancing Application Chapter 8 Taking the Initial Vibration Measurement 1. If you are using an external tachometer, optical tachometer, or strobescope as the trigger source, connect the tachometer cable (Cat. No. EK-45131) to the POWER/TRIG connector at the top of the Enpac 2500. TIP Skip this step if you are using the internal Laser Tachometer as the trigger source. 2. Attach a transducer to a bearing house. 3. Mark the rotor by making a mark on one rotor that will serve as a reference mark.
Chapter 8 Balancing Application 7. Shut down the machine and continue the balancing procedure in the next section. IMPORTANT Anytime during the initial run, you can do the following: • Press F4 (Esc) to exit the balancing program. • Press the 0 (Shift) key and F1 (Go to) simultaneously to go back to a previous step in the balance run. Refer to Moving Around in a Balance Run on page 233 for details. • Press F2 (Summary) to display the results in the Vibration Summary Table.
Balancing Application Chapter 8 3. In the Radius parameter, enter the radius of the trial weight. To Estimate the Trial Weight 1. Press F3 (Estimate). 2. Enter the mass of the rotor using the key pad and press F2 (OK). The Enpac 2500 calculates the trial weight (mass), the angle, and the radius using the following formula. .1 rotor mass 9.81 900Trial Weight = ------------------------------------------------------------------radius [speed 2 To Take the Trial Weight Measurement 1.
Chapter 8 Balancing Application The following message appears asking if the trial weight is still attached. 5. Press F2 (Yes) if the weight is still attached to the rotor. Press F3 (No) if the weight has been removed from the rotor. Note that it is good practice to remove the trial weight. 6. Shut down the machine. 7. Continue the balancing procedure in the next section. IMPORTANT Anytime during the initial run, you can do the following: • Press F4 (Esc) to exit the balancing program.
Balancing Application Chapter 8 To Split the Correction Weight On many rotors, such as a fan, it is not possible to correct the unbalance at the angle indicated by a measurement run. The Enpac 2500 allows the correction to be split into two components at points where it is possible to add or remove weight. 1. Use the DOWN ARROW key to highlight Split Mass, then press the RIGHT ARROW key. 2. Select Yes to split the weight and press the LEFT ARROW key to save your choice.
Chapter 8 Balancing Application The Enpac 2500 automatically measures the speed, vibration, and phase. The values are constantly updated on the screen. 4. When the speed, vibration, and phase values are stable, press READ/OK. The residual measurement is complete. TIP The green status indicator illuminates when the measurement is complete. Refer to Status Indicators on page 25. The following message appears. 5. Do one of the following. • Press F3 (No) if you do not want to trim the residual.
Balancing Application Chapter 8 6. Shut down the machine and attach the trim weight(s) whose weight, angle, and radius are indicated on the screen. IMPORTANT Do not remove the original correction weight. 7. Start the machine and let it reach operating speed. 8. Press READ/OK. The Enpac 2500 takes vibration readings, calculates new trim weight(s) and displays it as described in steps 5 and 6. TIP The Enpac 2500 may ask if the transducer is attached to plane 1.
Chapter 8 Balancing Application Two Plane Balancing This section describes the procedure for balancing a machine in two planes. Taking the Initial Vibration Measurement 1. If you are using an external tachometer, optical tachometer, or strobescope as the trigger source, then connect the tachometer cable (Cat. No. EK- 45131) to the POWER/TRIG connector of the data collector. TIP You can skip this step if you are using the internal Laser Tachometer as the trigger. 2.
Balancing Application Chapter 8 6. When the speed, vibration, and phase values are stable, press READ/OK. This completes the plane 1 measurement. TIP The green status indicator illuminates when the measurement is complete. Refer to Status Indicators on page 25. 7. The data collector asks if the transducer is attached to plane 2. If the transducer is attached, press F4 (OK) to begin the plane 2 measurement. 8. The data collector automatically measures the speed, vibration, and phase in the second plane.
Chapter 8 Balancing Application Adding the Trial Weight and Taking a Measurement in Plane 1 The Add Trial Weight - Plane 1 screen appears upon completion of the Initial run measurement. You can manually enter the trial weight, the angle, and the radius, or you can have the Enpac 2500 automatically estimate the trial weight for you. To Manually Enter the Trial Weight Use the UP and DOWN ARROW keys to highlight the parameters.
Balancing Application Chapter 8 The Enpac 2500 calculates the trial weight (mass), the angle, and the radius using the following formula. .1 rotor mass 9.81 900Trial Weight = ------------------------------------------------------------------radius [speed 2 To Take the Trial Weight Measurement 1. Once the trial weight information has been entered, attach the plane 1 trial weight to the rotor. 2.
Chapter 8 Balancing Application 6. When the values stabilize, press READ/OK to complete the measurement. TIP The green status indicator illuminates when the measurement is complete. Refer to Status Indicators on page 25. The following message appears asking if the trial weight is still attached to plane 1. 7. Press F2 (Yes) if the weight is still attached to the rotor. Press F3 (No) if the weight has been removed from the rotor in plane 1. 8. Shut down the machine.
Balancing Application Chapter 8 Adding the Trial Weight and Taking a Measurement in Plane 2 The Add Trial Weight - Plane 2 screen appears upon completion of the plane 1 trial run measurement. To Manually Enter the Trial Weight Use the UP and DOWN ARROW keys to highlight the parameters. Press the RIGHT ARROW key and then enter the trial weight, angle, or radius value using the numeric key pad. When entry is complete, press the LEFT ARROW key. 1. In the Mass option, enter the trial weight.
Chapter 8 Balancing Application 3. The Enpac 2500 calculates the trial weight (mass), the angle, and the radius using the following formula. .1 rotor mass 9.81 900Trial Weight = ------------------------------------------------------------------radius [speed 2 To Take the Trial Weight Measurement 1. Once the trial weight information has been entered, attach the trial weight to the rotor in the second plane. 2.
Balancing Application IMPORTANT Chapter 8 Anytime during the initial run, you can do the following: • Press F4 (Esc) to exit the balancing program. • Press the 0 (Shift) key and F1 (Go to) simultaneously to go back to a previous step in the balance run. Refer to Moving Around in a Balance Run on page 233 for details. • Press F2 (Summary) to display the results in the Vibration Summary Table. Refer to Reviewing Data on page 233 for details.
Chapter 8 Balancing Application To Split the Correction Weight On many rotors, such as a fan, it is not possible to correct the unbalance at the angle indicated by a measurement run. The Enpac 2500 allows the correction to be split into two components at points where it is possible to add or remove weight. 1. Highlight Split Mass and press the RIGHT ARROW key. 2. Select Yes to split the weight, then press the LEFT ARROW key to save your choice. 3.
Balancing Application Chapter 8 4. The Enpac 2500 automatically measures the speed, vibration, and phase. The values are constantly updated on the screen. 5. When the speed, vibration, and phase values are stable, press READ/OK. This completes the plane 1 measurement. 6. The Enpac 2500 asks you if the transducer is attached to plane 2. If the transducer is attached, press the F4 (OK) to measure plane 2 speed, vibration, and phase.
Chapter 8 Balancing Application Refer toTo Split the Correction Weight on page 230 for details. 9. Shut down the machine and attach the trim weight(s) whose weight, angle, and radius are indicated on the screen. IMPORTANT Do not remove the original correction weight. 10. Start the machine and let it reach operating speed. 11. Press READ/OK. The Enpac 2500 takes vibration readings, calculates new trim weight(s) and displays it as described above. 12.
Balancing Application Moving Around in a Balance Run Chapter 8 You can return to a previous step in the balance run by pressing the 0 (Shift) key and F1 (Go To) simultaneously. The Go to screen appears and lists all the steps in the balance run. The steps that are completed have a check mark next to them. The check mark indicates that the step has been completed. You can go back to any step that has a check mark next to it. Highlight the step that you want to return to, then press F2 (Go to pt).
Chapter 8 Balancing Application Vibration Summary Table The results of the Initial run, Trial run, and Correction run are stored in the Vibration Summary Table. To view the Vibration Summary Table, press F2 (Summary). Press the RIGHT ARROW key to toggle between the planes. Press F2 to view the Weights Summary Table.
Balancing Application Chapter 8 Combining Weights Screen The Enpac 2500 can combine selected weights into one equivalent weight. The result will have the same effect on balancing the rotor as the multiple weights, provided the same plane and radius are used. To combine the weights, follow these steps. 1. Press F3 (Comb Wt) on the Weights Summary Table screen. The Combine Weight screen appears. To highlight an option, press the UP or DOWN ARROW key. Highlight a weight and press F3 (Select).
Chapter 8 Balancing Application The Enpac 2500 combines the weights and displays the results in the Combine Weight screen, as shown below. Combined weight 6. To return to the Weight Summary Table, press F4 (Esc). Capturing and Printing the Summary Tables The Vibration and Weight Summary Table screens can be saved as a bitmap (.bmp) image on a memory card, or printed as a graphic image with a serial connection to a serial printer.
Balancing Application Chapter 8 1. Press F3 (Memory). The Memory - Internal screen appears. List of saved balances. 2. Press F2 (Save), then do one of the following: • To save the data to an existing file, highlight the file, and press F2 (OK). Press F2 (Yes) to overwrite the existing file. Note that you can return to the Memory - Internal screen without overwriting the file by pressing F3 (No). • To save the data to a new file, highlight ‘new‘ and press F2 (OK).
Chapter 8 Balancing Application To Load the Previous Balance Run When you open the Balancing program (choose Balance from the Main Menu screen), the Enpac 2500 may ask if you want to reload the previous balance run, as shown below. Press F2 (Yes) to load the previous balance. If you want begin a new balance, press F3 (No). To Reload a Balance with the Memory Function You can load a previously stored balance anytime the Memory function is displayed on the screen. 1. Press F3 (Memory).
Chapter 9 Time Recorder Application The Enpac 2500 Time Recorder application allows the Enpac 2500 to be used as a data recorder for real-time data acquisition and analysis. With the Time Recorder application, you can record data from channel 1, channel 2, or from an internal or external tachometer. The data is stored in a format which can be easily imported into a third party tool for program analysis.
Chapter 9 Time Recorder Application • On a ship propulsion system, which uses large amounts of fuel, you can start the time recorder, run the ship up to full speed, run five minutes at full speed, and then coast-down. The measurement analysis is performed on the recorded vibration signal without spending hours of gas turbine drive time collecting data and resulting fuel consumption.
Time Recorder Application Chapter 9 The Recorder - Setup screen appears. Maximum recording time determined by measurement settings & free space available on Save To setting. 5. Highlight the parameter and press the RIGHT ARROW key to open the menu of choices. 6. Select the choice by pressing the arrow keys, or typing in a value using the numeric key pad. 7. Press the LEFT ARROW key to save your choices. 8. Press F3 (Save) to save the current settings to a file.
Chapter 9 Time Recorder Application Table 43 - Time Recorder Setup Parameters Parameter Name Description Values/Comments Range1 (Full Scale) The expected maximum amplitude range value for the CH1 measurement. CH2 Type Sets the vibration measurement type used on CH2. This parameter is available only when Input is set to CH1 & CH2. Options: NA Accel (G) (default) Accel (m/s2) Vel (mm/s) Vel (ips) Disp (mils) Disp (μm) Volts (V) Volts AC Press.
Time Recorder Application Chapter 9 Table 43 - Recorder Status Indicators Status Indicators State Definition Amber Solid An error has occurred during the recording. The status indicator remains solid even when the error condition disappears. The recorded .csv file also contains a flag indicating that the corresponding .wav file may contain flawed data. Green Flashing Green The status indicator toggles on/off for each new data block.
Chapter 9 Time Recorder Application Recording the Measurement Once you have previewed the measurement and you are satisfied with the parameter settings, you can record the measurement. To initiate data recording, press F4 (Rec.) on the Preview screen. Cursor Amplitude Cursor Time Recording Time Remaining Overall Reading Message Area Channel You are Currently Viewing During data recording, the live time waveform freezes on the screen, and the (recording) time remaining counts down in the message area.
Time Recorder Application Chapter 9 The .csv time waveform files may be reviewed in the field with the Enpac 2500 (Recorder - Review Data). The time waveform .wav audio files can be imported into vibration analysis software for post processing. IMPORTANT When data is saved to an external memory card, only the .wav file is saved on the card. The .csv file is always saved to the internal disk (Mobile Device/ Internal Disk/Analyser/Recorder directory).
Chapter 9 Time Recorder Application Recalling a Setup You can recall a previously saved setup and use it to record another measurement. The setup may have been saved only as a setup, or may have been saved with the recorded measurement. Refer to Saving a Time Recorder Setup and Measurement on page 244. 1. Connect the transducer to the Enpac 2500. Refer to Connect a Transducer to the Data Collector on page 120. 2. Attach the transducer(s) to the machine case or structure. 3.
Time Recorder Application Chapter 9 The Recorder - Setup screen appears. Refer to Setting Up Time Recorder Measurements on page 240 for assistance in setting up the parameters. 6. To preview the measurement and start recording, press F4 (Start). Refer to Previewing the Measurement on page 243 and Recording the Measurement on page 244.
Chapter 9 Time Recorder Application Reviewing Time Recorder Measurements You can review previously recorded measurements with the Enpac 2500. Note that only a small portion from the end of the recorded data can be reviewed with the data collector. To review the entire data file, you must transfer the file to your computer. See Copying Time Recorder Files to the Host Computer on page 251. To review recorded measurements with your Enpac 2500, follow these steps. 1.
Time Recorder Application Chapter 9 The data is displayed on the screen. 4. Press F4 (Next) to review the next saved file. Press F3 (Prev) to review the previous saved file. 5. To print the screen, press F2 (Print). 6. To return to the main Recorder screen, press F1 (Back). Capturing and Printing the Review Data Screen The Review Data screen can be saved as a bitmap (.bmp) image on a memory card, or printed as a graphic image with a serial connection to a serial printer.
Chapter 9 Time Recorder Application Backing Up and Deleting Time Recorder Files You can backup time recorder files to a PC card or SD card or copy the files to a host computer. You can also delete a time recorder measurement or setup from the Enpac 2500. Backing Up Time Recorder Files 1. Insert the memory card into the PCMCIA slot in the bottom of the Enpac. 2. Select Recorder on the Main Menu and press the READ/OK key. The Recorder screen appears. 3.
Time Recorder Application Chapter 9 5. Press the 0 (Shift) key and F1 (Backup) simultaneously to backup the selected file(s) to the memory card. Backs Up Selected Files 6. The specified files are copied to the memory card (\Storage Card\Analyser\Recorder directory). TIP If you are backing up `all‘ the files, a dialog appears asking if you wish to format the card. Press F2 (Yes) to format the card before backing up the files, or press F3 (No) to back up the files without formatting the card.
Chapter 9 Time Recorder Application 6. The New Partnership window closes and the ActiveSync window shows you are connected as ‘Guest.‘ Device Identity Status TIP If the connection fails, try it again, making sure you follow steps 3 and 4 in close sequence. You may need to unplug the USB cable from your computer and replug it into the USB port. If the connection still fails, use the ActiveSync Troubleshooter (Help > Microsoft ActiveSync Help) to help you identify and correct problems. 7.
Time Recorder Application Chapter 9 The appropriate Recorder screen appears. Below is an example of the Recorder - Load Setup screen. To highlight a filename, press the UP or DOWN ARROW key. 3. Highlight the appropriate filename or highlight ‘all’ to delete all the files. 4. Press the 0 (Shift) key and F4 (Delete) simultaneously to delete the selected file(s) from the Enpac 2500. Deletes Selected Files A dialog appears to confirm the deletion. 5. Press F2 (Yes) to delete.
Chapter 9 Time Recorder Application Notes: 254 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Chapter 10 Run Up/Coast Down Application The Enpac 2500 Run Up/Coast Down application allows the Enpac 2500 to record and analyze data from intermittent events and transient vibration signals from non steady state machines. The Run Up/Coast Down application is an add-on program to the Enpac 2500 and must be installed with the Run Up/Coast Down SD or PCMCIA card from Rockwell Automation. Refer to Adding Applications to the Enpac 2500 Data Collector on page 59 for installation instruction.
Chapter 10 Run Up/Coast Down Application The application acquires a simultaneous noise or vibration signal and a tachometer signal. Figure 35 illustrates a typical Run Up/Coast Down setup. The setup includes an accelerometer attached to channel 1 of the Enpac 2500, an optical tachometer signal connected to the units power socket, a tripod for tachometer signal stability, and a speed reference trigger.
Run Up/Coast Down Application Setting Up Run Up/Coast Down Measurements Chapter 10 The first step in the Run Up/Coast Down application is to set up how the data will be acquired by the data collector. 1. Select RUCD on the Main Menu and press the READ/OK key. The RUCD screen appears. 2. Select Setup and press the READ/OK key to set up the Run Up/Coast Down parameters. The RUCD - Setup screen appears. To highlight an option, press the UP and DOWN ARROW keys. 3.
Chapter 10 Run Up/Coast Down Application Use the descriptions in this table to help you configure the parameters in the Run Up/Coast Down Setup screen. Table 44 - Run Up/Coast Down Setup Parameters 258 Parameter Name Description Values/Comments Transducer Type of sensor used on channel 1 of the Enpac 2500. The sensor type determines available options and engineering units for subsequent setup fields.
Run Up/Coast Down Application Chapter 10 Table 44 - Run Up/Coast Down Setup Parameters Parameter Name Description Values/Comments Start Spd (RPM) Sets the speed at which the unit should start collecting data. 10…3600 RPM Default value is 60 RPM If Mode is set to `Runup,‘ this value must be less than the Stop Spd. If Mode is set to `Coast down,‘ this value must be greater than the Stop Spd. This parameter is not available if Mode is set to `Manual.
Chapter 10 Run Up/Coast Down Application 1. Using the tachometer cable (Cat. No. EK-45131), connect the reference input device to the POWER/TRIG connector at the top of the Enpac. Align the reference input device (tachometer, optical tachometer, or strobescope) to capture shaft speed. 2. Attach a transducer to the bearing house. 3. Start the machine or stop the machine as needed. Press F4 (Start) on the RUCD - Setup screen to begin data collection. The RUCD - Taking Data screen appears.
Run Up/Coast Down Application Chapter 10 The resulting time waveform is recorded as a Microsoft Windows .wav file and the Acquisition Completed dialog appears on the screen. TIP If an error occurs during data collection, an error message is displayed in this dialog. 5. Press F4 (OK) to continue. The RUCD - Display Select screen appears. Use the arrow keys to highlight an icon. 6. The Enpac provides five different formats for you to use to view the newly recorded time waveform.
Chapter 10 Run Up/Coast Down Application Displaying Measurements Using a Bode Plot The Bode plot is actually two graphs of 1X RPM amplitude and phase as a function of frequency. The screen shows both plots at the same time. The top plot shows magnitude versus RPM. The bottom plot shows phase versus RPM. Setting Up the Bode Plot 1. Select Bode on the RUCD - Display Select screen and press F4 (Display). The RUCD - Bode Setup screen appears. 2.
Run Up/Coast Down Application Chapter 10 Refer to Displaying the Bode Plot on page 264. Table 46 - Bode Plot Parameters Parameter Name Description Values/Comments Start Spd (RPM) Sets the start speed of the recorded data for the Bode plot. 10…3600 RPM This defaults to the Start Spd value set in the RUCD Setup screen. See Table 44 on page 258. Stop Spd (RPM) Sets the stop speed of the recorded data for the Bode plot. 10…3600 RPM This defaults to the Start Spd value set in the RUCD Setup screen.
Chapter 10 Run Up/Coast Down Application Table 46 - Bode Plot Parameters Parameter Name Description Values/Comments Show Overall Determines whether to display the overall severity as a trace on the Bode plot. Options: Yes No Num Traces Sets the number of traces or order tracks to be displayed on the Bode plot. The number of traces available is determined by the Show Overall parameter. Your selection determines the available number of Trace Order parameters.
Run Up/Coast Down Application Displaying Measurements Using a Nyquist Plot Chapter 10 The Nyquist plot is a polar representation of the amplitude and phase angle as a function of frequency. Three variables are combined into a single plot in polar format. Setting Up the Nyquist Plot 1. Select Nyquist on the RUCD - Display Select screen and press F4 (Display). The RUCD - Nyquist Setup screen appears. 2. Highlight the option and press the RIGHT ARROW key to open a menu of choices. 3.
Chapter 10 Run Up/Coast Down Application Table 47 - Nyquist Plot Parameters 266 Parameter Name Description Values/Comments Spacing Controls the spacing between collected spectra. • Delta RPM- A fixed speed change between spectra. • % Delta RPM- A percentage speed change between spectra. • Delta Time- A fixed time interval between spectra. • Delta RPM+Delta Time- A combination of speed and time interval settings. If speed stops changing then spectra are calculated using the Time Interval value.
Run Up/Coast Down Application Chapter 10 Displaying the Nyquist Plot When you are done setting up the plot parameters, you can process the data and display the Nyquist plot by pressing F4 (Display) on the RUCD - Nyquist Setup screen. TIP The larger the .wav file, the longer it takes to process the data and display the plot. .
Chapter 10 Run Up/Coast Down Application Displaying Measurements in Table Format The magnitude and phase of selected orders at the varied RPM speeds are displayed in a table. Setting Up the Table 1. Select Table on the RUCD - Display Select screen and press F4 (Display). The RUCD - Table Setup screen appears. To highlight an option, use the UP and DOWN ARROW keys. 2. Highlight the option and press the RIGHT ARROW key to open a menu of choices. 3.
Run Up/Coast Down Application Chapter 10 Table 48 - Table Parameters Parameter Name Description Values/Comments Spacing Controls the spacing between collected spectra. • Delta RPM- A fixed speed change between spectra. • % Delta RPM- A percentage speed change between spectra. • Delta Time- A fixed time interval between spectra. • Delta RPM+Delta Time- A combination of speed and time interval settings. If speed stops changing then spectra are calculated using the Time Interval value.
Chapter 10 Run Up/Coast Down Application Displaying the Table When you are done setting up the table parameters, you can process the data and display the table by pressing F4 (Display) on the RUCD - Table Setup screen. Up to two orders of the magnitude and phase data set is displayed in the table. To scroll through the table, press the UP and DOWN ARROW keys. You can also display the data in a Bode plot or Nyquist plot.
Run Up/Coast Down Application Displaying Measurements Using a Waterfall Chapter 10 The Waterfall plot displays the vibration level in relation to the frequencies at which the vibration occurs. It enables you to view several measurements in relationship to each other. Setting Up the Waterfall 1. Select Waterfall on the RUCD - Display Select screen and press F4 (Display). The RUCD - Waterfall Setup screen appears. 2. Highlight the option and press the RIGHT ARROW key to open a menu of choices. 3.
Chapter 10 Run Up/Coast Down Application Table 49 - Waterfall Plot Parameters 272 Parameter Name Description Values/Comments Spacing Controls the spacing between collected spectra. • Delta RPM- A fixed speed change between spectra. • % Delta RPM- A percentage speed change between spectra. • Delta Time- A fixed time interval between spectra. • Delta RPM+Delta Time- A combination of speed and time interval settings. If speed stops changing then spectra are calculated using the Time Interval value.
Run Up/Coast Down Application Chapter 10 Table 49 - Waterfall Plot Parameters Parameter Name Description Values/Comments LF Cutoff (EU) Sets a low frequency cutoff filter to remove noise from the analysis. Options: Off 21.6 CPM 66 CPM 120 CPM 600 CPM 4200 CPM .36 Hz 1.1 Hz 2 Hz 10 Hz 70 Hz The available options are determined by the X-axis selection.
Chapter 10 Run Up/Coast Down Application 4. When you are finished and ready to display the waterfall plot, press F4 (Display). Table 50 - Waterfall Plot Setup Parameters 274 Parameter Name Description Values/Comments Z-axis Controls the spacing between the collected spectra. • RPM- FFTs spaced depending on the RPM at which they were recorded. • Timestamp- FFTs spaced depending on the time the data was recorded. • Even Spacing- FFTs spaced evenly along the Z-axis.
Run Up/Coast Down Application Chapter 10 Viewing the Waterfall Plot After setting up the Waterfall spectra, press F4 (Display) on the Waterfall Display Setup screen.
Chapter 10 Run Up/Coast Down Application To use the Z-axis zoom feature, press the 0 (Shift) key and the +/- key simultaneously. Repeat this key sequence to continue zooming in. After the highest zoom level is reached, the above procedure will cause you to zoom out. TIP Displaying Measurements Using a Spectrogram There are more zoom levels available when there are fewer spectra displayed in the plot.
Run Up/Coast Down Application Chapter 10 Refer to Displaying the Spectrogram Plot on page 278. Table 51 - Spectrogram Plot Parameters Parameter Name Description Values/Comments Start Spd (RPM) Sets the start speed of the recorded data for the plot. 10…3600 RPM This defaults to the Start Spd value set in the RUCD Setup screen. See Table 44 on page 258. Stop Spd (RPM) Sets the stop speed of the recorded data for the plot. 10…3600 RPM This defaults to the Stop Spd value set in the RUCD Setup screen.
Chapter 10 Run Up/Coast Down Application Table 51 - Spectrogram Plot Parameters Parameter Name Description Values/Comments Freq. Range (EU) The maximum frequency for the measurement. 10…2000 Hz 600…120000 CPM .001…166 Orders The frequency range is determined by the X-axis parameter. LF Cutoff (EU) Sets a low frequency cutoff filter to remove noise from the analysis. Options: Off 21.6 CPM 66 CPM 120 CPM 600 CPM 4200 CPM .36 Hz 1.
Run Up/Coast Down Application Chapter 10 Table 52 - Spectrogram Plot Setup Parameters Parameter Name Description Values/Comments Y-axis Sets the Y-axis scaling on the spectrogram plot. • Linear - The plot grid centers are linearly spaced in Y between the centers of the first and last grid. • Log - The plot grid centers are logarithmically spaced in Y between the centers of the first and last grid. Options: Linear Log Z-axis Controls the spacing between the collected spectra.
Chapter 10 Run Up/Coast Down Application You can save the RUCD setup and measurement anytime the Save function is displayed on the screen. 1. Press F3 (Save) if you are saving the data from the Setup screen. Press F4 (Save) if you are saving the recorded data from a plot screen. The RUCD - Save Data screen appears. 2. Do one of the following: • To save the data to an existing file, highlight the file, and press F4 (Save). Press F2 (Yes) to overwrite the existing file.
Run Up/Coast Down Application Recalling a Setup Chapter 10 You can recall a previously saved setup and use it to collect another measurement. The setup may have been saved only as a setup, or may have been saved with the recorded data. Refer to Saving Run Up/Coast Down Measurements on page 279. 1. Select RUCD on the Main Menu and press the READ/OK key. The RUCD screen appears. 2. Select Recall and press the READ/OK key. The RUCD - Load Setup screen appears. 3.
Chapter 10 Run Up/Coast Down Application Reviewing Run Up/Coast Down Measurements You can review previously saved Run Up/Coast Down measurements with the Enpac 2500. The Enpac saves the recorded data in the form of a time waveform (.wav file). 1. Select RUCD on the Main Menu and press the READ/OK key. The RUCD screen appears. 2. Select Review Data and press the READ/OK key. The RUCD - Review Data screen appears. 3. Highlight the filename that you want review and press F4 (Open). If you select a .
Run Up/Coast Down Application Chapter 10 The RUCD - WAV Setup screen allows you to set up the .wav file parameters. TIP The Enpac reads the .WAV file to determine the maximum speed present. If the number of pulses per revolution is not equal to 1, enter the correct value before processing. 4. Highlight the option and press the RIGHT ARROW key to open a menu of choices. 5. Select the choice by pressing the arrow keys or type in a value using the numeric keypad. 6.
Chapter 10 Run Up/Coast Down Application Deleting Run Up/Coast Down Files You can also delete a Run Up/Coast Down measurement or setup from the Enpac 2500. 1. Select RUCD on the Main Menu and press the READ/OK key. The RUCD screen appears. 2. Select Review Data to delete a measurement or Recall Data to delete a setup and press the READ/OK key. The appropriate RUCD screen appears. Below is an example of the RUCD - Review Data screen. 3.
Run Up/Coast Down Application Chapter 10 4. Press the 0 (Shift) key and F4 (Delete) simultaneously to delete the selected file(s) from the Enpac 2500. Deletes Selected File(s) A dialog appears to confirm the deletion. 5. Press F2 (Yes) to delete.
Chapter 10 Run Up/Coast Down Application Notes: 286 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Chapter 11 FRF Frequency Response Function Extension Module The Frequency Response Function (FRF) extension module is an optional module for the Enpac 2500 data collector. You install the extension module with the FRF Frequency Response PCMCIA memory card. See Installing Optional Extension Modules on page 189 for installation instructions.
Chapter 11 FRF Frequency Response Function Extension Module Newtons Law and Apparent Mass Newtons Law states that force equals mass x acceleration: F = ma Rearranging this gives: m = F/a The units for this are N/m/s2. The definition of a Newton: N = kg x m/s2 So we can see that: N/m/s2 = kg Setting Up an FRF Measurement When setting up an FRF measurement, first set up the test hardware before you configure the parameters for the FRF Module.
FRF Frequency Response Function Extension Module Chapter 11 Follow these instructions to set up the FRF test apparatus. 1. Fit the correct tip to a modally tuned hammer. The hammer is used to create the force that is to be measured in the FRF. TIP Use a harder tip for higher frequency and a softer tip for lower frequency measurements. 2. Connect the modally tuned hammer to CH1 of the instrument. 3. Support the object being tested, allowing free movement, for example, on a foam support. 4.
Chapter 11 FRF Frequency Response Function Extension Module FRF Module Setup There are three parameters that have 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 range • Good Coherence- 80% threshold All other settings can be configured on the Setup screen in the FRF extension module. 1. From the Main Menu, select the FRF icon and press Enter.
FRF Frequency Response Function Extension Module Chapter 11 The FRF menu appears. 2. Select Setup and press Enter. The FRF - Setup screen appears.
Chapter 11 FRF Frequency Response Function Extension Module FRF Analysis Set-up Parameters This table describes the FRF set-up parameters. Table 54 - FRF Analysis Set-up Parameters 292 Parameter Description Value/Comments Acquisition Mode Set to Hammer for FRF acquisition and modal analysis, or set to Continuous for ODS analysis. If you are performing ODS analysis, refer to the instructions that accompanied your ODS software for additional information on settings that are required.
FRF Frequency Response Function Extension Module Chapter 11 Table 54 - FRF Analysis Set-up Parameters Parameter Description Value/Comments Num of Lines Sets the number of lines of resolution for the FFT. The Acquisition time information box changes accordingly. When set to Automatic, the FRF module automatically chooses the number of lines after three trial hits. This uses a Uniform window if possible and automatically increases the lines of resolution to accommodate the decay time.
Chapter 11 FRF Frequency Response Function Extension Module Collect FRF Data Once the measurement is set up and the transducers are attached correctly, the next step is to start collecting data for the FRF. Follow these instructions to collect FRF Data. 1. From the Setup screen, press 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.
FRF Frequency Response Function Extension Module Chapter 11 When hitting the object, try to make sure that you have one clean tap and that the hammer hits directly opposite of where the accelerometer is located on the object. If this is done correctly, the instrument registers the hit and 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 settings.
Chapter 11 FRF Frequency Response Function Extension Module The status indicators provide feedback on the hammer hits. Table 55 - Status Indicators Status Indicator Description Red An error, for example, input overrange, during data acquisition. Amber Instrument is initializing the measurement. Green Instrument is collecting data. In Hammer mode, it is looking for a hit.
FRF Frequency Response Function Extension Module Chapter 11 The FRF - Taking Data screen shows frequency, magnitude, phase, and Q factor (where appropriate) at the cursor position. The FRF is colored red where coherence falls below 80%. Good coherence shows the trace in green. FRF Measurement Coherence for the measurement, represented by the color of the FRF trace. Phase Indicates how many hits were taken.
Chapter 11 FRF Frequency Response Function Extension Module 3. Select an accelerometer of correct mass and connect to CH2. 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. Set the Meas Units parameter to N/m/s2. The instrument displays 1 kg (or other chosen mass), plus the weight of the accelerometer: M = calibrated mass + accelerometer mass For example: 1 kg + 10.5 g = 1.
FRF Frequency Response Function Extension Module Saving, Reviewing, and Deleting FRF Measurements Chapter 11 You can save measurement setups and measurement results. You can use these for reviewing and recalling stored measurements. Save an FRF Test Setup and Measurement You can save the FRF Test set-up parameters and measurements to a file that you can recall at a later time. Follow these steps to save a file. 1. Press F3 (Save). The Save screen appears.
Chapter 11 FRF Frequency Response Function Extension Module Importing to ODS Analysis Software. Operating Deflection Shapes (ODS) analysis is used for determination of the vibration pattern of a structure under certain operating conditions. Vibration measurements can be performed at different locations and in different directions on a structure and the vibration pattern can be shown as an animated geometry model of the structure or listed in a shape table.
Appendix A Specifications Appendix A lists the technical specifications for the Enpac 2500. Enpac 2500 Technical Specifications Product Feature Specification Enclosure Size 186 x 93 mm (narrowest point) 186 x 134 mm (widest point) Weight 715 g (1.52 lbs) Case Material: 80% ABS & 20% polycarbonate plastic Hand strap fixing either side of unit.
Appendix A Specifications Enpac 2500 Technical Specifications Product Feature Specification Battery Type Rechargeable Lithium Ion Pack Capacity 2600 mAHr Power >8 hours (typically) Gauge Battery capacity indicator Rechargeable In unit or via an external DC supply Environmental Sealing IP65 (Dust and Water Proof) Drop Test 2 Meter (to Mil-Std 810) Operating Temperature Range -10...50 °C (14...122 °F) Storage Temperature Range -20...60 °C (-4...
Specifications Appendix A Enpac 2500 Technical Specifications Product Feature Specification Signal Measurement Input Signal Types Accelerometers Velocity Transducers Displacement Probes Photo-optical Pickups Tri-axial Transducers Accel/Velocity Transducers AC/DC Volts Manual Entry Number of Channels 2 simultaneously Ch1 Tri-axial ICP/AC/DC Ch2 Single ICP/AC/Dc Signal Inputs ICP™ (20V norminal @ 2.4 mA) AC Signal DC Signal Tachometer (Trigger input-photo optical/etc.
Appendix A Specifications Enpac 2500 Technical Specifications Product Feature Specification Signal Measurement cont. Input Signal Range Non ICP: ±12 V or 0 to 24 V ICP: 0 to +20 V Transducer Check Bias Voltage Integrity Signal RMS Peak Peak to Peak True Peak True Peak to Peak Auto Range Yes Dynamic Range 90 dB typical Accuracy 5% Frequency Range Upper (Fmax) all inputs = 40 kHz Lower (Fmin) DC input = DC AC/ICP input = 0.16 Hz H/W integrated input = 0.
Appendix B Frequently Asked Questions and Answers This appendix contains the most frequently asked questions about using the Enpac 2500 with Emonitor.
Appendix B Frequently Asked Questions and Answers As an example, there are certain filters available in the Enpac 2500. Then there are three possible cases: • You select the Enpac 2500 as the only active collector. Emonitor displays the correct filters in the measurement filter column of the Measurement Definition pane. • You do not select any active collectors. Emonitor displays many more filters than are available for the Enpac. • You select two or more active collectors.
Frequently Asked Questions and Answers Appendix B Why won’t Emonitor load a list to the Enpac 2500? First, check the communication between Emonitor and the Enpac 2500. Note that the baud rate setting in the data collector must match the baud rate setting in Emonitor. If the communication link between them is correct, it may be that the list is already loaded in the Enpac 2500. You must either delete the list or initialize the memory before you can reload a list already in the Enpac 2500.
Appendix B Frequently Asked Questions and Answers • The Enpac 2500 is correctly connected to the computer. • You choose Tools > Load/Unload in Emonitor. The communication link remains until you do one of the following to break communication. • Close the Load/Unload dialog in Emonitor. • Disconnect the cable between the computer and Enpac 2500. • Press the READ/OK key on the Enpac 2500. TIP Collecting Data with the Enpac 2500 Emonitor indicates when it completes the loading or unloading process.
Frequently Asked Questions and Answers Appendix B What does the USER (eus) units mean? Emonitor allows you to create measurement definitions for many different units. Some of these units are not directly supported in the Enpac 2500. When you display a measurement definition in the Enpac 2500 with an unsupported unit, the Enpac 2500 chooses the USER (eus) units. You can still collect and store data using unsupported units.
Appendix B Frequently Asked Questions and Answers How can I reduce the ranging time required during collection? Long ranging times are associated with trying to collect low frequency vibration data. Applying an overall filter helps reduce long ranging times. In particular, overall filters with the highest low frequency cutoff point decrease ranging time the most.
Frequently Asked Questions and Answers Analyzing Data in Emonitor Appendix B Why does the magnitude reading not correspond to the calculated overall value? Emonitor can calculate an overall value from a spectrum measurement. Under some conditions, this value may not be the same as the magnitude measurement for the same location. The common use for this are: • The measurement filter is not the same for the magnitude and the spectrum measurement definitions.
Appendix B Frequently Asked Questions and Answers Notes: 312 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Appendix C Accessories Table 56 - Accessories Cat. No.
Appendix C Accessories Cables and Sensors Table 58 - Cables and Sensors 314 Cat. No.
Glossary The following terms and abbreviations are used throughout this manual. For definitions of terms not listed here, refer to the Allen-Bradley Industrial Automation Glossary, publication AG-7.1. active data collector You can define one or more data collectors as active. Emonitor uses the active collectors to determine the valid options when you set up measurement definitions.
Glossary band sum Also called band limited overall value. This is the total energy in a spectrum between two frequencies. If the band contains the entire spectrum, the band sum value is the same as the magnitude value for the entire spectrum. baseline measurement A reference measurement you identify from the archive data for a measurement definition. It indicates the proper operating condition of a piece of equipment. You can use it as a comparison to other measurements, and in alarms.
Glossary harmonic cursors Multiple cursors that are at constant multiples of a fundamental frequency. Typically you position a single cursor at the desired fundamental frequency and then press a key to activate the harmonic cursors. These cursors help identify the related frequency components in a spectrum Hierarchy Tree A graphic illustration of the database hierarchy in Emonitor. It contains the machines in your predictive maintenance system.
Glossary magnitude alarm An alarm that defines the safe operating boundary for magnitude data from a piece of equipment or a process. Magnitude data can be overall vibration, temperature, operating speed, or any other process measurement. magnitude measurement Single value representing the total energy of a measurement. For example, a vibration magnitude represents the total energy in a vibration spectrum.
Glossary process (DC) voltage measurement A single valued measurement taken directly from a DC voltage output. Similar to a process measurement; however you directly measure the value instead of entering it with the data collector keypad. Quickload list A list of measurement definitions to be loaded into a data collector. Emonitor builds and saves Quickload lists as load files so that they do not have to be rebuilt every time before loading into the data collector.
Glossary transducer specification A transducer specification defines the characteristics of a transducer. These include the transducer name, type, base unit, and calibration. trend plot A trend plot is a graph of the amplitude of a measurement against time, usually displaying the trend in a magnitude or process measurement over days, weeks, or months. unload report A report that Emonitor automatically creates after you unload data from a data collector or import data from a file.
Index Symbols +/- key 22 Numerics 0 (Shift) key 22 2CHEnable 98 9-way D connector 24 A Accel measurement 137 Accel Time measurement 137 Acquisition 45 active collector 303 ActiveSync 101 add application to data collector 58, 187 Add Trial Weight screen 214 additional resources 17 Advanced Setup parameters Coupling 212 Detection 211 Filter 211 Input Chan 212 No. Averages 212 No.
Index Time Interval 261 Trace Order 262 Y-axis 261 Bump Test 193 backing up data 202 collecting data 197 deleting data 204 Load Setup screen 199 pausing data collection 197 printing Review screens 201 recalling setup 199 Review Data screen 200 reviewing data 200 save measurement 198 save setup 198 setting up 194 Taking Data screen 197 Bump Test - Load Setup screen 199 Bump Test - Setup screen 194 Bump Test - Taking Data screen 197 Bump Test- Review Data screen 200 Bump Test Setup parameters Avg Type 196 Di
Index settings 42 Data Collection screen 33 data collector active 303 alarms 93, 307 choosing current 97 driver version number 110 hardware resetting 56 magnitude alarms 77 rebooting 56 selecting active 303 spectrum alarms 86 Data Collector Advanced Settings parameters 2CHEnable 98 Current Baud 98 Current Parity 98 Datapac Enumeration 98 Direction 98 Log Display 98 Machine Speed 98 Operating System 98 Phone Number 98 Position 98 Sync Trigger Level 98 Sync Trigger Slope 98 Sync Trigger Type 98 Trigger Range
Index Freq Range 196, 240, 270, 276 Freq Units 44 frequency 285 freq range 290 frequency items 74 frequency labels loading 74 Frequency Response Function 285 natural frequencies 285 bad data 287 field calibration 295 Good Coherence 288 Newtons Law 286 ODS analysis 285 Pre-trigger delay 288 Trigger level 288 FRF Analysis Set-up Parameters acquisition mode 290 frequency range 290 good coherence 291 H.
Index LEFT ARROW key 21 Length Units 210 Level 146, 165 LF Cutoff 261, 264, 267, 271, 276 linear average 72 Lines 196, 270, 275 Lines/Samples 145 lists clearing in memory 308 deleting 105 in the data collector 94 inspection codes 107 loading 104, 109 Quickload 109 restrictions on loading 305 selecting 109 unable to load to data collector 305 unloading 111 load files, creating 91 loading alarms 93 complete 305 frequency items 107 inspection codes 107, 307 lists 109 Quickload files, rebuilding 305 restrictio
Index Num Traces 262, 264, 267 numeric keys 22 numeric measurements (DC) voltage 126, 127 full scale value 82 manually entering 125, 126, 127, 129 measurement definitions 60 RPM 83 setting up in host software 82 temperature 82 Nyquist plot 263 Nyquist plot parameters Detection 264 Display Units 264 LF Cutoff 264 Num Traces 264 Spacing 264 Speed Interval 264 Start Spd 263 Stop Spd 263 Time Interval 264 Trace Order 264 O ODS analysis importing software 298 off route 113 off route measurements unloading 113
Index predictive maintenance 19 pre-trigger delay 288 Preview mode 241 printing overview 155 reports automatically on unload 155 product specifications 299 protocol, communication setting in host software 97 proximity probes magnitude measurements 77 spectrum measurements 85 Pulses/Rev 256, 281 Q questions and answers 303 Quickload files rebuilding 305 saving time 109 R Range 195, 256 Range1 240 Range2 240 ranging time, reducing 308 READ/OK key 21 rebooting data collector 56 Rec. Mode 240 Rec.
Index S Safety avoid water 20 laser radiation 20 optical ports 20 placement 20 Same measurement 137 Save To 240, 257 saving screens 155 screen capture keys 155 overview 155 screens in data collector Data Collection 33, 120 help 15, 37 Instrument Configuration 43 Instrument Setup 30 Main Menu 29 Notes 124 Offroute Measurement 138 Offroute User 143 Sens 195, 256 Sens1 239 Sens2 240 Sensitivity 145, 165, 212 sensor 290 Sensor Type 195 serial connection diagram 100 Set Active Collectors command 60, 303 Set Up
Index CH1 Type 239 CH2 Type 240 Freq Range 240 Input 239 Range1 240 Range2 240 Rec. Mode 240 Rec.
Index X-axis 270 Z-axis 272 WAV setup parameters Max M/c Speed 281 Mode 281 Pulses/Rev 281 Start Spd 281 Stop Spd 281 Weight Units 209 Weights Summary Table screen 232 Window 146 window type collection specification 69 flattop 69 Hamming 69 Hanning 69 rectangular 69 X X-axis 270, 275 X-axis units 195 Y Y-axis 261, 277 Z Z-axis 272, 277 330 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
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