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RWT410/420 SERIES TRANSDUCER USER MANUAL

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1. 1 12 32vdc input e 2 Power reurn OV 3 RS232 RXD CAN LO GND 6 88232 TXD CAN HI GND USB USB USB OV USB POWER FAIL OUTPUT 330 RY 5V OUT H Fush Button RPM TTL OUT unter Na Counter D PS 2 and P6 2 can be connected to any GND at any point BRAID CONNECTED TO GND Sensor Technology 2012 Page 12 RWT3745V Rev 1 Declaration of Conformity EC Directives We Sensor Technology Ltd hereby declare that the products named below to which this Declaration of Conformity relates is in conformity to the requirements of EC Council Directives and Standards as listed 2004 108 EC Electromagnetic compatibility BS EN 61326 1 2006 Electrical equipment for measurement control and laboratory use Type of Product Rotary Torque Transducer Product Name s RWT410 RWT411 RWT413 RWT420 RWT421 RWT430 RWT431 RWT433 RWT440 RWT441 RWT442 Intended use Measurement of rotary torque within the rated torque and speed limits as described on the transducer Managing Director Sensor Technology Ltd 1 June 2012 A pollo Park Ironstone Lane Wroxton Banbury SH SENSOR Oxon OX15 GAY Q NX w TECHNOLOGY LTD Tel 44 0 1869 238400 Fax 44 0 1869 238401 Email info sensors co uk Web www sensors co uk O Sensor Technology 2012 Page 13 RWT3745V Rev 1 G SENSOR TORG SENS E NN ee TECHNOLOGY Digital RWT410 420 series Torque Transducer TorgSense Digital
2. A calibration invalid error indicates that the calibration data has become corrupted Revision 4 June 2012 Page 19 Transducer Control User Manual RWT3746IM SAW Parameters Invalid A SAW parameters invalid error indicates that an internal configuration structure has become corrupted Revision 4 June 2012 Page 20 St TorgView 4 00 500 450 w 550 600 ga t 7 rir Waly Center Zero Apollo Park Ironstone Lane Wroxton Oxon UK 0X15 6AY Tel 44 0 1869 238400 Fax 44 0 1869 238401 pa SH SENSOR NI ANS TECHNOLOGY LTD Email info sensors co uk Web www sensors co uk TorqView4 Software TorqView version 4 can be installed as a Demo if a full program has not yet been purchased and as a Full purchased program The demo program allows for 10 hours use and all functions are available except the save to file function If TorqView was purchased with the transducer the transducer will be enabled to run TorgView If TorqView was purchased at a later date then an activation key is required to convert the program from Demo to Full The factory will send the activation key and details of how to convert are on the About Screen towards the end of this manual Recommended minimum system requirements Sensor Technology recommends a PC running Windows XP Vista or 7 with a minimum of 512 MB of RAM a minimum screen resolution of 1024 x 768 pixels a Pentium Illl or equivalent processor and a minimum of 600
3. C SAW Parameters Invalid The status code is split into 3 categories Information Warning and Error Each category is composed of a number of flags which identify the status of each test item When the status code is retrieved from the transducer it is decoded and the status of each item is displayed onscreen The meaning of each category and flag is described in the following sections Information Information flags inform the user of operational conditions Peak ON Peak switch is ON Custom Analog Scaling A non standard analog output setup is being used Limits Triggered The limits feature is in an active triggered state Revision 4 June 2012 Page 18 Transducer Control User Manual RWT3746IM Warning Warning flags inform the user of detected conditions that need user intervention Analog Channel 0 Analog Channel 1 An issue has been detected on the analog output channel this maybe either a short or a loading problem The user should review all cabling arrangements High Zero Offset A torque zero offset greater than 10 of FSD is in use Any offset value is allowed but the warning is asserted because it is potentially a very dangerous circumstance a user may not realise that an offset is present then overscale the transducer and damage connected equipment Exceeded Temperature The transducer is operating outside of the 10 c to 50 c temperature range The transducer may not operate correctly Overscale
4. Shaft Size Diameter Torsional stiffness 372 kNm rad inertia oe es load limit gar em NI breaking Shaft weight 1 1 1 1 1 1 1 2 approx Transducer with 2 4 2 4 2 4 2 5 2 5 kg shaft weight approx Data parameters measured at 20 C Sensor Technology Ltd reserves the right to change specification and dimensions without notice Sensor Technology Ltd 2013 RWT3722R Rev2 RWT410 420 Series Torque Transducers Dimensions 501Nm to 13000Nm 125 00 M6 x 14 DEEP 0 14 7 50 Units Mechanical Properties Mechanical Properties O ShaftCode GE GA GB Gc GD HA HB HC HF HG 50 15 mm GA FEE EE NR Diameter FE did ome me ad kod om ne bei bai kili Stiffness Emil Medi kad kal Ma kd MM kadi il inertia ag m load limit breaking approx Transducer with 7 1 shaft weight approx Data parameters measured at 20 C Sensor Technology Ltd reserves the right to change specification and dimensions without notice Sensor Technology Ltd 2013 RWT3722R Rev2 RWT410 420 Series Torque Transducers Standard Range e Standard feature Optional feature ae ELLE Series Code Torque Speed Power Outputs ET RWT410 EE EEE Torgueony a Torque amp Speed 60 pulses rev ETT rr User to specify RPM FSD when ordering Torque amp Power 60 pulses rev Tae Pov opter a Tester User to specify Power FSD when ordering Torque amp Speed 60 puls
5. TORON AN RWT410 420 SERIES TRANSDUCER USER MANUAL CAUTION This instruction manual should be read carefully and the safety instructions observed before installing or operating the equipment related to this manual Apollo Park Ironstone Lane Wroxton Banbury ap SENSOR Oxon UK OX15 6AY Tel 44 0 1869 238400 Fax 44 0 1869 238401 Email info sensors co uk Web www sensors co uk k ASI MS w TECHNOLOGY LTD While every precaution has been exercised in the compilation of this document to ensure the accuracy of its contents Sensor Technology Ltd assumes no responsibility for any errors or omissions Additionally no liability is assumed for any damages that may result from the use of the information contained in this document Patents Sensor Technology Ltd s RWT series products are manufactured under one of the following US patents 5 585 571 6 237 417 6 467 351 6 765 493 6 838 958 6 864 759 Copyright Copyright 2006 2012 Sensor Technology Ltd All rights Reserved Copying or reproducing of all or any part of the contents of this manual is strictly prohibited without the express permission of Sensor Technology Trademarks TorqSense is a registered trademark of Sensor Technology Ltd TorqView is a trademark of Sensor Technology Ltd LabVIEW is a trademark of National Instruments Corporation National Instruments is a trademark of National Instruments Corporation Windows is a regi
6. e Surface Acoustic Wave SAW An acoustic wave travelling along the surface of a material having some elasticity with amplitude that typically decays exponentially with the depth of the substrate e Strain dependent SAW resonators A type of elastic SAW device which changes its resonant properties when it is subjected to axial strain compression TorgSense uses this principle which is protected by a number of patents e Incremental Electronic Scan IES The most successful and precise method for interrogating strain dependent SAW resonators The IES interrogation method uses a processor controlled frequency synthesiser to excite the SAW resonators over a defined range of frequencies and measure the reflected signal TorqSense uses this patented method e Resolution of the IES method The minimum measurable number corresponding to the stress strain sensitive resonance point of the SAW resonator The value is limited by following the factors e frequency resolution of the synthesiser which is 1000 times greater then overall resolution of the system e relationship between frequency response and resolution Increments of the resolution will proportionally decrease the system s frequency response TorgSense systems are optimised for the best performance that suits most applications However on the RWT420 series models customers do have the capability to adjust the system performance e Frequency response of the ES method The measure of th
7. The filters apply to the base data captured and will affect both the digital and analog outputs Enable or disable the filter for torque or speed by clicking on the appropriate Filter Enabled checkbox If enabled use the appropriate slider bar to select a filter value Valid values are 2 4 8 16 32 64 128 and 256 The filtering algorithms can also be enabled disabled and adjusted on the fly by sending digital commands via the RS232 and USB interfaces Revision 4 June 2012 Page 13 Transducer Control User Manual RWT3746IM Limits The limits feature allows the user to configure the transducer to control external processes based on predefined operational parameters Control is accomplished via the fail auxiliary output which is available on both analog and digital connectors Examples of how this feature can be used include system shutdown on overload or triggering a conveyor belt when a nut bolt has been tightened to the correct torque At present there is a single control line but the limits feature is very flexible allowing the user to control the output polarity high and low limit threshold samples before trigger and an auto reset function which resets the limit out if the control value falls back between threshold values When Limits is enabled the transducer will monitor the selected control channel when the value falls below the low limit if enabled or exceeds the high limit if enabled an internal counter is sta
8. Zero vi Voltage Swing Unipolar Absolute Value 10 The following graphs illustrate the predefined scales that are available The graphs are scaled against Torque with a standard 0 FSD Range Predefined Voltage Scales 10V OV Zero 5V OV Zero 10 5 ot v O O o o 10 5 FSD Zero FSD FSD Zero FSC Torque Torque 1V OV Zero 5V SV Zero 1 10 o S S 0 z 5 gt gt 1 0 FSD Zero FSD FSD Zero FSC Torque Torque Revision 4 June 2012 Page 10 Transducer Control User Manual RWT3746IM OV 10V Unipolar OV SV Unipolar 10 5 Voltage Voltage FSC Zero FSD Zero Torque Torque OV 1V Unipolar 1 Voltage Zero t FSD Torque Predefined Current Scales Option F Current Output OmA gt 20mA Unipolar 4mA gt 20mA Unipolar 20mA mA Zero FSD Zero FSD Torque Torque 10mA 10mA Zero 8mA 12mA Zero 20m 20mA pf 5 E 10mA 5 mA O oO 4maA FSD Zero F5D FSD Zero F5C Torque Torque Revision 4 June 2012 Page 11 Transducer Control User Manual RWT3746IM User Defined Voltage lf a custom analog output scaling is required select the User Defined Voltage option from the Voltage Scale Select combo box then use the Zero Offset and Voltage Swing slider bars to configure the required scaling The text boxes to the right of the respective slider bars will display the configured voltage Zero Of
9. button once Average zero Pressing the zero button for 2 seconds Not possible with TorgView or Transducer Display ETD Save the average zero to the transducer enables the transducer to recall the zero after a power cycle Press and hold the zero button for 6 seconds Not possible with TorqView or Transducer Display ETD Resetting transducer to factory default To reset the transducer to factory default settings i e the functions set by the factory on purchase Step 1 Turn off transducer Step 2 While holding in the zero button power the transducer The LED will stay solid green until the reset button is released Sensor Technology 2012 Page 7 RWT3745V Rev 1 Step 3 Allow the transducer to carry out its BIT procedure Step 4 When the LED sets at solid green all user adjusted parameters have been reset to the factory default setting Step 5 If appropriate reactivate TorqView See About Screen in TorqView User Manual Examples of reading collecting data for diagrammatic purposes only the RWT410 420 module is shown Analog Limit Controller Analog 0 20Ma 4 20mA Chart Recorder USB RS232 RS232 CAN BUS PLC O O Sensor Technology 2012 Page 8 RWT3745V Rev 1 Optional Accessories Analog Lead The Analog Lead is a 2 5m length 15 way D type connector female to 12 pin Lumberg female It can be used for either RWT series transducers Digital Lead RWT420 440 series ONLY The Digita
10. for an interpretation and possible actions Transducer Status Lights Interpretation and actions Mode Warnings Errors Peak mode One of the peak options has been selected in either the transducer control software or by using the analog lead contact closure on pin 8 Analog Scaling The full scale of the analog out has been changed to a user selected scale in the transducer control program Additional Information There is no requirement to install LabVIEW because TorqView is a self running executable file However if LabVIEW is installed and there is a requirement to make unique programs or allow TorqView to communicate with other LabVIEW programmes VI s are available from Analog Fault CHO In voltage output mode the analog output pin is short circuit in current output mode the analog output pin is open circuit Check the analog connector wiring on Channel 0 Analog Fault CH1 In voltage output mode the analog output pin is short circuit in current output mode the analog output pin is open circuit Check the analog connector wiring on Channel 1 Zero Offset High There may be an offset applied to the current torque applied value because the Zero Peaks has been pressed while torque greater than 10 of the fsd has been applied Exceeded temp Shaft temperature has exceeded normal operating conditions Temperature compensation may no longer effective or calibration valid Overscale T
11. the list correspond to the default search options and ports discovered on the users computer The filter reduces the time taken to search for transducers by only looking in the selected area Search for connected transducers Search Parameters Select Port To Search AUTO v AUTO AUTO RS232 Status Ready The options prefixed with AUTO will search for multiple transducers whereas the COM x options will search for a single transducer on a specific port AUTO AUTO will search for connected transducers on all available ports AUTO RS232 AUTO RS232 will search for connected transducers on RS232 ports only AUTO USB AUTO USB will search for connected transducers on USB ports only COMx COMx will search for a connected transducer on the selected COMX port If the transducers connection method is known it is recommended that it be selected if it is unknown select AUTO Revision 4 June 2012 Page 4 Transducer Control User Manual RWT3746IM Once an option has been selected click on the Search button Transducer Control will then search for compatible transducers using the filter supplied During this process the window will update to indicate the progress of the search transducers will be added to the listbox as they are found lf a single transducer is detected the program will automatically initialise the transducer and load the main window If multiple transducers are detected the dialog box will require t
12. voltage output mode the analog pin is short circuit in current output mode Fault CHO the analog output pin is open circuit Check the analog connector wiring in Channel 0 Analog In voltage output mode the analog pin is short circuit in current output mode Fault CH1 the analog output pin is open circuit Check the analog connector wiring in Channel 1 There may be an offset applied to the correct torque applied value because High the Zero Peaks has been pressed while torque greater than 10 of the fsd has been applied Temp compensation may no longer be effective or calibration valid Torque has been applied greater than the FSD torque Critical Torque has been applied greater than 120 of the FSD Contact factory if over torque warning continues For example the following sequence would indicate warnings for Analog Fault CHO and SAW Zero Offset High a I er QI wily sw TI e a JI a a a y a 8 a Wsec VW sec sec sec sec sec sec sec Mesec 4sec sec Error signal A solid red LED indicates that an error has occurred If this occurs restart the transducer Contact the factory if problem continues Zeroing the transducer The transducer can be zeroed by using TorqView Transducer Display ETD The Transducer Signal Breakout Unit or Ground Pin 7 on the analog 15 way D type connector female There are three ways to zero the transducer Normal zero Press the zero
13. 38400 Fax 44 0 1869 238401 Technical Support Email software sensors co uk Tel 44 0 1295 730746 Fax 44 0 1295 738966 Revision 4 June 2012 Page 2 Transducer Control User Manual RWT3746IM Introduction Transducer Control is an all round application to unlock the advanced functionality of the RWT320 340 360 and 420 440 460 Series Transducer Transducer Control enables the user to exploit the flexibility of the advanced transducer series by configuring the run time parameters of the transducer to best suit their application Transducer Control gives the user complete control of the dual channel analog output by allowing adjustment of the output voltage scaling zero voltage data scaling and data assignment On the digital side the user can control the digital filtering level adjust the RS232 baud rate and configure the limit controls As well as configuring the transducer Transducer Control can also be used as a readout providing a simple text display showing torque speed and power along with peak values and zero control Transducer Requirements e NWT320 340 360 420 440 460 Series Torque Transducer e RS232 or USB connection to a PC PC Requirements Operating System Microsoft Windows 2000 XP Vista 7 CPU 500 MHz CPU 133 MHz Minimum RAM 128MB 64MB Minimum Hard Drive Space 10MB 280MB for Microsoft NET Framework runtime CAUTION If you are planning to use a USB connection please read the USB Driver
14. 420 440 series ONLY The Transducer DLL Programmers Guide is only applicable for Users with RWT420 440 series transducers who wish to write their own software It informs users how to use the DLL imbedded in the Transducer Further information on the Transducer DLL Programmers Guide is available from the factory or as a download from the website www sensors co uk Sensor Technology 2012 Page 9 RWT3745V Rev 1 Leads Analog Lead Pin Out 2 5m length 15 way D type connector female to 12 pin Lumberg female 15way D type connector Pwr amp Out 12 Pin male on transducer 2 3 AnalogGnd J 4 4 AnalogspeedDGmA TE OO 5 7 10 11 12 Mating connector is Lumberg DIN45321 0322 12 BRAID CONNECTED TO GND 15 way D socket 12 Pin Conductive Pwr amp Out female pair l 12 32VDC input G PA 1 2 GND M PA2 pa PA 4 Analog Speed DC mA E P2 1 5 Analog Torque DC mA P22 Analog Gnd s P3 1 Analog WB Out ORT K P32 T Zero Input low zero A P11 Do NOT supply any III II voltage to these ports CH Peak Input low peak B P12 Closure to ground only 9 TEDS I O F P41 10 AUX 1 0 P4 2 JJ lt 1 P5 1 W Fail Output CONNECTOR SHELL BRAID CONNECTED TO GND B d Female 15 way D Female 12 way Lumberg O Sensor Technology 2012 Page 10 RWT3745V Rev 1 Digital Lead Pin Out RWT420 440 Series ONLY 2 5m length 15
15. A torque of over 101 of FSD has been applied to the transducer measurement accuracy cannot be trusted Critical Overscale A torque of over 120 of FSD has been applied the transducer at this level measurements will have a low accuracy and there is a danger of permanent damage to the transducer Reduce the torque level Error Error flags indicate that a system fault has been detected System faults cannot be corrected by the use If a fault condition does occur try power cycling the transducer If the fault does not clear the transducer will have to be returned for service Capture Board Failure A capture board failure indicates that the DSP used to control the SAW data capture is not responding SAW Error A SAW error indicates that the shaft attached SAW devices are not operating within normal parameters Failed Temperature Sensor A failed temperature sensor error indicates that the transducers internal shaft temperature sensor has malfunctioned When the temperature sensor fails the transducer will no longer compensate the torque readings for changes in temperature which will cause a loss in accuracy Irregular Internal Voltage An irregular internal voltage error indicates that main processor has detected that one of the internal voltage rails is operating outside of normal parameters Data Configuration Invalid A data configuration invalid error indicates that main build configuration has been corrupted Calibration Invalid
16. Instruction Guide before installing TorqView or Transducer Control Installation To install Transducer Control 4 1 Insert the Sensor Technology Installation CD into your CD ROM drive The following screen will be displayed Gr SENSOR Sig NS w TECHNOLOGY TorqView 4 Transducer Control 4 INSTALL Manuals VIEW Visit our website Click the Install button next to Transducer Control 4 Follow the onscreen instructions Transducer Control will now be installed and be ready for use eow Revision 4 June 2012 Page 3 Transducer Control User Manual RWT3746IM Running Transducer Control amp Connecting To A Transducer To run Transducer Control and connect to a transducer 1 Ensure that power is supplied to the transducer 2 Connect the transducer to the computer using either RS232 or USB 3 Run the Transducer Control program by clicking on the Start button then Programs gt Sensor Technology gt Transducer Control 4 gt Transducer Control 4 When Transducer Control starts the Search for connected transducers dialog box will be displayed which will aid the user in identifying transducers that are attached to the computer Search for connected transducers Search Parameters Select Port To Search AUTO v Status Ready Before pressing the Search button select a search filter from the Select Port To search combo box The items in
17. MB free disk space CAUTION If planning to use a USB connection please read the USB Driver Instruction Guide before installing TorqView or Transducer Control Program Installing TorqView Step 1 Insert the TorqView installation CD into any CD drive The program will auto run and display the following screen CB sensor Technology Saltwarr Installation CD n 3 D0 Jan ZUUH g TOR NN SE TECHNOLOGY TorqView RWT320 senes only NIKI Transducer Control mwr20 series only erie Manuals Step 2 Click on the Install button opposite TorqView Step 3 Follow the guidance Step 4 On completion TorqView is ready to run The default install directory is C Program Files Sensor Technology Torqview 4 Torqview400 Running TorqView To avoid any communication errors it is advised that all torque transducer cables and leads are correctly plugged in and the instrument is turned on before running TorqView TorqView can be run from Start Programs Sensor Technology TorqView4 A shortcut can also be found in the Start Bar menu ES Se TOrgview 4 TORBEN Programs Documents Settings Search Run E 2 a Y O _ o KN a a gt lt w Le D s O wy Help and Support EI Shut Down Revision 5 March Sensor Technology 2012 Page 1 TSE3168V When TorqView starts a screen will be displayed to enable users to select which port the transducer is connected to
18. RWT410 420 series transducers TorqSense RWT410 series transducers offer with integral electronics now offer cost effective non e Fixed voltage or current analog outputs one contact digital rotary torque measurement using for torque and the other for speed or power for Surface Acoustic Wave technology suitable for torque interfacing with analog instrumentation monitoring testing or controlling drive mechanisms BIT Self diagnostics for letting the manufacturer ep PE ran OE e SG know that the transducer s torgue speed ratings their technology are particularly appropriate for OEM and calibration due date have not been exceeded applications e Simple Sensor status output pin e Sensors to monitor shaft temperature for better compensation and accuracy Whereas TorgSense RWT420 series transducers offer The new TorgSense RWT410 420 torgue sensors replace the RWT310 320 series and feature all new electronics that have produced significant performance gains in resolution freguency response reduced sensor Digital outputs such as RS232 CANbus and USB for interfacing with modern instrumentation and laptops Digital input for configuring transducer via PC current consumption and faster digital data throughput Transducer overload has also been increased to 300 2 x user selectable voltage or current analog outputs one for torgue and the other for speed power or peak torgue for interfacing with analog instrumentation Transducer con
19. RWT420 440 series ONLY Leads Analog Lead Pin Out Digital Lead Pin Out RWT420 440 series ONLY Transducer Connections Declaration of Conformity Data Specification Appendices RWT420 440 series ONLY d RWT420 440 Series Transducer Control Utility Attachments the following documents may also be attached 1 TorqView User Guide Sensor Technology 2012 Page 2 O1 O1 BR Gu 0 NN N N OO O CO CO CO O O O CO Attached RWT3745V Rev 1 Getting Started Introduction The TORE Rayleigh Wave Rotary Torque Transducer provides a method of precisely measuring bi directional rotary or static torque It can also be fitted with a speed sensor for monitoring in dynamic applications enabling direct measurements of transmitted power The RWT series transducers require no external instrumentation and has its own built in test capability Its compact size makes it ideal for use in applications where there is little space for any extra equipment Analog voltage outputs are standard with current outputs available as an option The RWT420 440 series can also be connected to a PC via USB optional or RS232 so that its configuration can be changed or by using TorqView to display torque speed and power Unpacking the transducer The following standard components are included 1 x RWT Series Transducer 1x RWT Electronics Module Only if RWT430 440 ordered 1x User Manual 1x Calibration Certificat
20. SE Transducer Selector TOR ER Click on the left hand side drop down menu to show all available ports found on the computer AUTO will search for transducers connected on all ports Use AUTO if more than one transducer is connected AUTO RS232 will search for transducers connected only on RS232 ports AUTO USB will search for transducers connected only on USB ports COM1 etc will search for transducers connected only on COM1 etc ports If it is Known which port the transducer is connected then select it from the list and click it SE Transducer Selector ITORQ L 4 0 1 AUTO AUTO RS232 AUTO USB com COM3 COM4 Next click on the Search button TorqView will now search for transducers connected on the selected port SE Transducer Selector TORQ 114 0 A Searching text will flash blue and an indicator will show the progress This may take a few minutes depending on the number of ports When the transducer connected to its port has been found it will be displayed in a drop down menu If more than one transducer has been found it will display all of them in a drop down menu Select which transducer to use SE Transducer Selector TORQ EIER Revision 5 March Sensor Technology 2012 Page 2 TSE3168V The selected transducer will now be connected and the Search For Transducers screen will disappear and be replaced by the Dials Screen See the Setup Screen for more information on how t
21. Serial No of the active transducer the date of its last calibration its manufactured date the firmware version and the Transducer Status Lights diagnostic box Convert to Full program To convert the program from Demo to Full enter an Activation key supplied at a later date only on purchase of a full program in the box and the press the Activate button Next exit TorqView and restart the program Factory default reset If a factory default reset details in User Manual has been carried out and TorqView was purchased with the transducer then TorqView reactivation is not required However if a factory default reset has been carried out and TorqView was purchased at a later date then reactivation is required EI rorgVlew 4 00 TOR AN TORA Transducer Status Lights The rectangular transducer status lights box illuminates appropriate lights to enable diagnostics An appropriate Warnings light will illuminate if the TorqView Function Bar LED changes colour from Green to Yellow Likewise an appropriate Errors light will illuminate if the TorqView Function Bar LED changes colour from Green to Red Revision 5 March Sensor Technology 2012 Page 8 TSE3168V If while using TorgView on the other screens the TorgView Function Bar LED changes colour from Green to Yellow or from Green to Red then always refer to the About Screen and in particular the Transducer Status Lights for more information See the table below
22. Signal Breakout Unit is powered by a supply voltage of 12 32Vdc with a minimum current of 1 amp to supply peak start up current AC Mains Adaptor Power Supply The AC Mains Adaptor Power supply is required to provide 12 32Vdc to the RWT series Transducer and Transducer Signal Breakout Unit TorqView RWT420 440 series ONLY TorqView is an easy to use graphical front end Virtual Instrumentation Display PC Interface Software program for use with the RWT420 440series transducers It allows the Torque Speed Power and Temperature values to be displayed in charts dials and digital bars and can be used to assist data recording For further information on TorqView please refer to the TorqView User Manual Transducer Control Program RWT420 440 series ONLY The Transducer Control Program is only applicable for Users with RWT420 440 series transducers who wish to alter the configuration of the Transducer to suit their application Further information on the Transducer Control Program please see Appendix 1 Transducer Communication Protocol RWT420 440 series ONLY The Transducer Communication Protocol is only applicable for Users with RWT420 440 series transducers who wish to write their own software It informs users of the protocols for communicating to the Transducer Further information on the Transducer Communication Protocol is available from the factory or as a download from the website www sensors co uk Transducer DLL Programmers Guide RWT
23. ad ACC4 to connect to RWT Digital Lead Adapter Length 1m For connecting RWT to PC via 15 Way D type female to CANbus USB USB Option G or CANbus and Power Connectors Option H Also needs Digital Lead ACC4 to connect to RWT RWT410 420 Series Torque Transducers Additional related products Code Remarks Purpose Transducer Display ETD Display readout AC Mains Adapter Power Supply PSU 1 For providing 12 32Vdc ae Transducer Signal Breakout Unit SBU 1 Torque Monitoring Software ACC 3 amp 4 o oo 3 o o CES 12 Pin Lumberg RS232 ACC 5 CANbus ACC 8 15 Way D Type connects to ACC4 15 Way D Type connects to ACC4 Power Data parameters measured at 20 C Sensor Technology Ltd reserves the right to change specification and dimensions without notice Sensor Technology Ltd 2013 RWT3722R Rev2 When ordering a Torque Transducer please note that any torque FSD is possible between ranges please specify rated torque and options using the following format A basic transducer with 411 15Nm K CL torque and speed outputs rated and calibrated to 15Nm FSD with keyed ends 10v and IP65 protection RPM i if applicable See over For example RWT Your transducer requirement RWT Max speed if applicable Connector amp Lead options Additional related products if applicable See over Glossary of terms and definitions used in this datasheet
24. al that it is correctly installed To avoid damaging the transducer during the installation process it is highly recommended that it is electrically connected and working so that any torque overloads applied due to handling can be monitored For Transducers above 1Nm or 10lbf in it is recommended that the body of the transducer is restrained from rotation using a strap or straps connected to the tapped holes in the end plates and that it is not rigidly mounted Couplings should be used to allow for angular misalignment while the transducer shaft takes up any parallel misalignment Care should be taken not to induce any end loads or bending moments to the shaft see below as these may induce inaccuracies to the torque measurement and in extreme cases damage the transducer TRANSDUCER E FE COUPLING GOUPLING n a i Let FLEAIBLE EARTH 3 TRAP MOTOR LOAD Should rapid variations in torque need to be measured in detail e g e torque fluctuations in gearboxes or multi vane pumps then it is recommended using torsionally rigid couplings fitted at both ends of the transducer shaft such as single membrane couplings and that these are correctly selected for the transducer rating and speed An undersized coupling will not transmit the torque while the high inertia of an oversized coupling can result in instantaneous peak torques far in excess of the measured torque Alternatively for lower bandwidth applications where it is more im
25. ale to FSD clockwise full scale in increments of 1 of FSD If speed is selected as a control channel then the slider bar will be scaled from 0 to FSD in increments of 1 of FSD Auto Reset Limit The Auto Reset Limit option when enabled will automatically reset a triggered limit output to an inactive state when the control channel value no longer exceeds the low or high limit threshold Timeout The Timeout option is an extension of the Auto Reset Limit option and can only be enabled when Auto Reset Limit is enabled When Timeout is enabled a reset limit event is delayed by the time specified by the Timeout parameter During the timeout period the limit output will remain latched The reset limit event is cancelled if the control channel value drops between the low or high limit thresholds during the timeout To enable the Timeout option click on the Timeout checkbox Auto Reset Limit must be enabled then use the slider bar to select a timeout duration The slider bar is scaled from 100ms to 1000ms in 100ms increments Revision 4 June 2012 Page 15 Transducer Control User Manual RWT3746IM Misc RS232 The RS232 settings control the RS232 functionality of the connected transducer Baud Rate The baud rate option selects the RS232 transmit and receive rate for the connected transducer It is recommended that the user select the fastest mode possible 115200bps as lowering the speed will red
26. ata to be exported as several picture formats or to the clipboard These settings are adjustable on the Setup Screen Use the Zoom tools to export a specific section of the chart Revision 5 March Sensor Technology 2012 Page 6 TSE3168V Setup Screen S ep A ke Gi TorgView 4 00 IX a TORQUE The Setup Screen is used to select the scales and units displayed on other screens as well as to select other options Scale The Scale section has functions to override the default Torque Speed and Power scales To change the scale toggle the Auto User button to User and enter the scale by 39 66 typing or toggling the Torque Speed and Power Units The Units section has functions to select the units displayed on other screens by clicking the drop downs Changes between different units of Torque Power and Temperature Eg Nm to Ibf in are possible Save to file not available on the Demo program The Save to File section has functions to record the selected data into a text file The channels to be recorded are selected by using the check boxes There is also the option to add an operators name notes or comments These details will form the header of the text file containing the date serial number of the active transducer and if applicable the operator and comments Once these details are entered click Save Settings Chose the destination of the file and its name Next click RECORD on th
27. bles must follow the same route as interfering cables then additional screening such as metal conduit should be used to provide isolation To avoid damaging the transducer during installation it is highly recommended that it is electrically connected and working during this process so that any torque overloads due to handling can be monitored Operating Principles The shaft of the transducer should be connected to the mechanical system on which the measurements are to be made using appropriate couplings so it can rotate freely up to its maximum recommended speed with relation to the transducers body and bearings fitted Torque applied to the shaft causes an angular deflection in the shaft approximately 0 5 degree at maximum rated torque This deflection is sensed by two Surface Acoustic Wave devices resulting in a change to their resonating frequency It is this change which is processed to provide a torque reading The RWT series transducers can sense both polarity output signals Torque applied in the clockwise sense along the transducer shaft axis produces a positive polarity output signal while torque applied in the anticlockwise sense produces a negative polarity output signal If an optical rotary speed sensor is fitted a light beam is interrupted by the rotation of a disc consisting of alternate opaque and translucent segments attached to the shaft Both 60 line and 360 line encoders are available The thermal characteristics of t
28. ducers setup USB USB is a host based bus architecture because of this the outout rate achievable will be affected by other bus traffic and host activity USB has two transfer modes Single Transfer which requests 1 reading at a time and Bulk Transfer which transfers readings in blocks of 50 Torque Speed pairs CAN Bus to achieve a Torque reading output rate of 10KHz the Speed reading output rate must be reduced to 100Hz Sensor Technology Ltd 2013 RWT3722R Rev2 Data parameters measured at 20 C Sensor Technology Ltd reserves the right to change specification and dimensions without notice RWT410 420 Series Torque Transducers Dimensions 1Nm to 100Nm units mm TT Properties Torque Max 1 25 39 6 65 13 175 20 30 55 85 100 Nm Shaft Code Shaft Size Diameter Ee ee eo ae fae ae Stiffness sd nd hd ad ol e of inertia Ly kom Sal mie load limit Static safe load 300 of rated torque breaking dd ad dd o iki kolka kol klika approx Transducer with 0 7 1 0 1 0 11 11 shaft weight approx Data parameters measured at 20 C Sensor Technology Ltd reserves the right to change specification and dimensions without notice Sensor Technology Ltd 2013 RWT3722R Rev2 RWT410 420 Series Torque Transducers Dimensions 101Nm to 500Nm Parameter ta its ETI Properties Torque Max 175 2235 26 350 3500 Nm Shaft Code D
29. e Peak CCW Peak torque value captured in the CCW direction Revision 4 June 2012 Page 7 Transducer Control User Manual RWT3746IM Torque Min Lowest numerical torque value captured Torque Max Highest numerical torque value captured Speed Fast Speed Slow Current speed value The slow fast descriptor refers to the method used to capture speed Speed Fast Peak Speed Slow Peak Highest speed value captured since the last reboot or reset Speed Rotations Number of shaft rotations recorded from the fitted angle device or speed pickoff Power Fast Power Slow Power is computed from the current torque and speed values captured The slow fast descriptor refers to the method used to capture speed Power Fast Peak Power Slow Peak Highest power value captured since the last reboot or reset Power is calculated from every torque speed pair captured the highest value is stored Temperature Shaft Temperature captured from the shaft IR sensor Temperature Internal Temperature captured from the internal body sensor Data Ranges The data range parameters control how data from the selected internal variable is taken and rescaled This feature is useful when the user is working in a specific measurement area and requires a greater change in analog output The low and high range values effectively rescale to the Zero and FSD voltages set in the Analog Voltage Scaling secti
30. e and for RWT420 440 series ONLY 1x TorqView program installation CD RWT Configuration Software Manuals amp Appendices in PDF format USB driver The selon items may also be included 12pin Lumberg female and or 12pin Lumberg male 1 x 2 5m Analog Lead 15 way D type connector female to 12pin Lumberg female 1x 2 5m Digital Lead 15 way D type connector male to 12pin Lumberg male RWT420 440 series transducer ONLY 1x Digital Adaptor Lead dc Jack with USB and or RS232 connections depending on options requested RWT420 440 series transducer ONLY x Transducer Display ETD 1x AC Mains Adaptor Power Supply 1 x Transducer Signal Breakout Unit CAUTION The RWT series transducers should be installed using correct couplings rated for the maximum torque and speed for the operation CAUTION The RWT series transducers should not be operated at any torque load greater or speed faster than that specified in the Product data sheet and on the Transducer CAUTION The RWT series transducers should not be operated in an environment where that operation could be life threatening or a danger to personnel CAUTION In electrically noisy environments the RWT series transducers should be earthed using the earthing post located on the transducer Sensor Technology 2012 Page 3 RWT3745V Rev 1 Mechanical Installation To obtain the best measurements from your torque transducer it is essenti
31. e Speed Slow Capture Current Peak Current Peak wats 0000 00 0000 00 0000 00 0000 00 up 0000 00 0000 00 0000 00 0000 00 Revision 4 June 2012 Page 17 Transducer Control User Manual RWT3746IM Transducer Status The Transducer Status segment displays the current transducer status The status code is extracted from the transducer and displayed on screen The transducer LED status sequence Is derived from this status code System Status The System Status represents the overall status of the transducer There are three possible system states System OK Transducer is operating normally System Warning Transducer has detected an error which requires user intervention System Error Transducer has detected a system fault Status Code The Status Code is the value that has been extracted from the Transducer and represents the current status The Status Code is a collection of binary flags that are combined together and shown in numeric form HE Transducer Status System Status System OK Status Code 0 Information Warning Error C Peak ON C Analog Channel 0 Short C Capture Board Failure C Custom Analog Scaling C Analog Channel 1 Short C SAW Error C Limits Triggered C High Zero Offset C Failed Temperature Sensor C Exceeded Temperature C lregular Internal Voltage C Overscale C Data Configuration Invalid C Critical Overscale C Calibration Invalid
32. e TorgSense system s response at the output to a signal of varying frequency at its input The frequency response is typically characterised by the magnitude of the system s response measured in dB There are two ways of characterising the system s frequency response e 0 1dB frequency range where the output magnitude of the signal is different to the input magnitude of the signal by not more then 0 1dB practically absolutely identical e 3dB frequency range where the output magnitude of the signal is 0 707 of the input signal This is a common standard for most applications unless it specifically says otherwise This standard is also used to characterise the TorgSense system s frequency response e Accuracy The degree of conformity of a measured or calculated quantity which will show the same or similar results Accuracy of the overall TorgSense system is limited by the combined error of several factors such as linearity hysteresis temperature drifts and other parameters affecting measurements If errors in the system are known or can be estimated an overall error or uncertainty of measurement can be calculated e Digital averaging The application of algorithms to reduce white noise In any electronic system electronic white noise is mixed with the signal and this noise usually limits the accuracy To reduce the influence of white noise and increase the accuracy of the system different averaging algorithms can be applied In the TorqSe
33. e TorqView Function Bar to start recording data to the specified text file Note SAVE SETTINGS BUTTON MUST BE CLICKED BEFORE CLICKING RECORD To view saved files double click file at saved destination The file will open in Notepad or a related text viewer Data will be displayed in columns in the order of the boxes checked E g if Torque and Power are checked then Torque will be column 1 Export Chart The Export Chart section has functions to setup which file type to export the picture of the chart whether to save it as a file or copy it to the clipboard It also enables grid lines to be selected Filters The Filters section has functions to smooth any erratic data The frequency response will reduce depending on the filter factor Check Save Filters to store the filter value in the transducer so that it can be remembered after a power cycle If Save Filters is unchecked when SET button is pressed then the value will return to the last saved value after a power cycle Select Transducer If more than one transducer is connected select one from the drop down menu and click on Select for it to be active and connected Revision 5 March Sensor Technology 2012 Page TSE3168V About Screen a Gi TorqView 4 00 ael The About Screen displays the TorqView version and whether it is a Demo or Full program The Demo program will display how many minutes remain Both programs will also display the
34. e factory recommend plain or splined shafts Note 10 Transducers fitted for IP65 will have running speeds considerably reduced increased drag torque and accuracy can be affected Data parameters measured at 20 C Sensor Technology Ltd reserves the right to change specification and dimensions without notice Sensor Technology Ltd 2013 RWT3722R Rev2 RWT410 420 Series Torque Transducers Connector and Lead Options RWT410 420 Remarks Purpose Leer a Connectors amp Connectors amp Leads RER 0 fun foer 12 Pin Lumberg female D sen is 12 Pin Lumberg male Analog Lead Length 2 5m For connecting RWT to users Se Pin Lumberg female to 15 way D ACC 3 system via 15 pin D connector type connector female Digital Lead Length 2 5m For connecting RWT to users 12 Pin Lumberg male to 15 way D Te las system via 15 pin D connector type connector male Digital Lead Adapter Length 1m For connecting RWT to PC via 15 Way D type female to RS232 and ACC 5 RS232 Power Connectors Also needs Digital Lead ACC4 to connect to RWT Digital Lead Adapter Length 1m For connecting RWT to PC via 15 Way D type female to RS232 USB ACC 6 USB Option G or RS232 and Power Connectors Also needs Digital Lead ACC4 to connect to RWT Digital Lead Adapter Length 1m For connecting RWT to PC via 15 Way D type female to CANbus and CANbus Option H Power Connectors Also needs Digital Le
35. er supply should be plugged into the dc jack on the box If a Digital Adaptor Lead is used the power supply should be plugged into the dc jack on the lead If a Transducer Display ETD Transducer Signal Breakout Unit or a Digital Adaptor Lead is not used then the power supply can be provided by using either the 2 5m Analog or Digital Lead s 15 way D type connector with a supply voltage of 12 32Vdc on Pin 1 and Ground on Pin 2 Note It is imperative that the voltage does not drop below 12v at any stage CAUTION Only provide power through either the Analog or Digital lead Do NOT provide power through both leads simultaneously Using the transducer Step 1 Switch on the RWT series transducer by ensuring power is supplied Step 2 Allow the transducer to carry out its Built In Test BIT procedure see details below Step 3 Allow five minutes for the equipment to reach thermal equilibrium before making any measuremenis Step 4 Zero the transducer see page 7 Step 5 Examples of reading collecting data see page 8 Built In Test BIT procedure When the RWT series transducer is switched on it will carry out its Built In Test BIT procedure While the BIT procedure is taking place there will be a series of red and green flashes from the LED followed by a steady green or a flashing green depending upon the operation mode when the test is complete If the transducer fails its BIT procedure there will be a quick succession o
36. es rev loi Outputs are user selectable or Power Standard features SSS SSS eas Keyed Shaft Ends e K INm will have flats Voltage output 5v FSD Fixed Voltage outputs from 1v to 10v FSD ga go EE and unipolar Variable RS232 output Torque Averaging and Torque Peak hh Self Diagnostics e WE A keieren EE RER series oni Fs eg lubrication Ingress Protection IP O o o O O Optional features BS RES LEE Daas Plain Shaft Ends Shaft length will be longer than keyed end shafts consult factory for length Voltage output 1v FSD Fixed est IA In place of OptionB ee NE ee Customer Specified nee Se n place of Option B User Fixed to specify range scale when ordering Leen MC ME NE dass options id TT ee options se av eee options Current output IS user Current output 0 20mA 4 20mA selectable and in place of amp 12 8mA Variable Voltage outout However user can reselect a Voltage output if required SKEE GLE 8 USB 2 0 full 183 2 0 full speed 12 Mbps Digitel output 12 Mbps Digital output 9 G CANbus CANbus output 4 NTE in RE RTE of RS232 ouput see Note 9 below Sealed Bearings assis Bearino 5 To factory for maximum See Note 10 below Note 8 amp 2 x analog channels available Default settings are Channel 1 voltage current torque Channel 2 voltage current speed or power if ordered Note 9 At very high speeds for better balance th
37. f red flashes followed by green and or red flashes If this occurs restart the transducer Contact the factory if problem continues Normal operation A solid green LED indicates normal mode and working correctly If the transducer is in a non standard mode the following LED sequences will occur SL Ki Peak Mode solid 3 sec 7 sec V sec 14 sec solid 3 sec i i a D Analog Scaling at d V RWT 420 440 solid 3 sec sec Wsec asec sec sec solid3sec Series ONLY sl P vi Peak Mode and m Ja e amp e Analog Scaling i i RWT 420 440 Series ONLY solid 3 sec sec v SEC V sec W sec Va SEC W sec Y sec solid 3 sec Sensor Technology 2012 Page 6 RWT3745V Rev 1 Warning signals A warning signal will always interrupt the normal operation mode lights by indicating alternating red green flashes followed by a pause a ly Lr Lits VL a ly er ala ui al lt a ly p da da fi Za MN at FIN SR 9 d AN sec A sec V4 sec Ya sec V4 sec Va Sec sec va Sec Va sec va Sec sec sec After the pause a sequence of green or red flashes will indicate which warning messages are applicable by flashing red at the appropriate place in the sequence This will continue until the warning has been reset by using the peak switch If after resetting the error message continues to be displayed the fault condition is still present and must be resolved before continuing The warning signal order is as follows In
38. figuration software to allow user to changes transducer variables BIT Self diagnostics for letting users know data is trustworthy that the transducer s torgue speed ratings and calibration due date have not been exceeded e Simple Sensor status output pin e Sensors to monitor shaft temperature for better compensation and accuracy Ability to connect up to 10 transducers using USB Benefits e Minimal shaft length High shaft stiffness e Low inertia High Speed capability because electronics are not fixed onto shaft e Non contact brushless measurement e High Bandwidth e 300 safe mechanical overload e High accuracy 0 25 and resolution 0 02 e Excellent noise immunity e Integral digital electronics TORGET 4 Software e Operates both statically and dynamicall ao Ee i TorqView is an easy to use advanced torque monitoring software available to assist data recording and e Any full scale torque can be specified within standard range 1Nm through to 13 000Nm instrumentation displays that interface with Windows fat based PCs e ifetime warrant g Features include 3 types of display text files compatible Consult factory for ranges greater than 13KNm with Matlab and Excel and Real time chart plotting High speeds available on request See TorqView datasheet for more details Technology TorqSense patented technology is the measurement of the resonant frequency change in frequency dependent Surface Ac
39. fset The Zero Offset allows the user to change the zero point voltage between 0 and 9 5V If the Zero Offset is increased the maximum 10V Voltage Swing voltage will be reduced This feature is useful if the user has an analog capture device that does not support negative voltages unipolar only but requires the direction of torque Voltage Swing The Voltage Swing sets the voltage span of the analog output The voltage can be stepped in 0 1V increments and can be scaled between 0 5V and 10V The maximum voltage will be reduced if the Zero Offset is not OV Unipolar Absolute Value The Unipolar Absolute Value checkbox option switches the analog output into a positive only voltage All input values will be made absolute making all negative values positive i e SNm value will become 5Nm This has the effect of removing the torque direction from the voltage output Revision 4 June 2012 Page 12 Transducer Control User Manual RWT3746IM Digital Setup The Digital Setup tab of the User Configuration allows the user to control some of the operational parameters that effect the processing and output of data Analog Setup Digital Setup Filters Limits Misc Torque Filter Enabled Sample s Speed Filter Enabled Sample s Upload Configuration Filters The torque and speed filters provide data smoothing for conditions where there may be erratic torque and speed readings
40. h equal capability on both Analog Setup Digital Setup Channel 1 Channel 2 Analog Data Select Data Select Range Low Torque Auto Assign v 0 Data Range Range High Default FSD Range v 100 Analog Voltage Scaling Zero Offset Voltage Scale Select 0 10V OV Zero v Voltage Swing Unipolar Absolute Value 10 Analog Data Select The Analog Data Select section allows the user to assign an internal data variable to the output and select a data range to be applied to the Analog Voltage Scaling Data Select The following list details the available internal data variables that can be assigned to the output Speed and Power items are dependant on the relevant options being fitted Torque Auto Assign The Torque Auto Assign data option will switch between Torque Actual and Torque Peak based on the state of the external peak switch input see Transducer Manual for pin out and control information If the Peak input is switched ON Torque Peak is selected otherwise Torque Actual is selected Torque Actual Current torque value Torque Peak Peak torque value captured since the last reboot or reset Torque Auto Reset Peak torque value captured since the last reboot or reset Auto Reset mode automatically resets the peak torque when the current torque drops below a percentage of the peak value Torque Peak CW Peak torque value captured in the CW direction Torqu
41. he steel shaft are compensated by having an infrared temperature sensor monitoring the shaft temperature at all times This information is then used to correct the modulus of the steel Pre load note All RWT410 420 transducers with a LED in the centre of the front label connector side have a bearing pre load spring fitted internally at the left hand side pre load end when viewing the front label of the transducer and with the earth stud bottom ride hand corner All RWT430 440 transducers with a LED on the separate electronics module have a bearing pre load spring fitted internally at the left hand side pre load end of the transducer head when viewing the label of the transducer head and the connector and gland facing towards you If there is a possibility of an end load being applied to the transducer the transducer should be orientated during installation such that the load is applied at the pre load end side with the internally fitted spring Excessive end loads must be avoided and it is recommended that appropriate couplings be used to compensate for axial and radial misalignment Sensor Technology 2012 Page 5 RWT3745V Rev 1 Operation Powering the transducer To power the transducer a supply voltage of 12 32Vdc is required with a minimum current of 1 amp to supply peak start up current If a Transducer Display ETD is used the ETD will provide power for the transducer If a Transducer Signal Breakout Unit is used the pow
42. he user to make a transducer selection To select a transducer click on the transducer from the list The transducer will then be initialised and used by the program Search for connected transducers Search Parameters Select Port To Search Status Complete Multiple devices detected please select one Model FT 420 CE Serial Number 00001000 Model FYWT421 DE Serial Number 00012345 EEG 000000 Revision 4 June 2012 Page 5 Transducer Control User Manual RWT3746IM Using Transducer Control The main screen will be displayed once a transducer has been selected use the menus at the top of the screen to select an option CS Transducer Control 4 SEE Menu Tree The menu structure below outlines the functionality of the different menu options File gt Exit Closes Transducer Control Transducer Configuration gt User Configuration Configures the operational parameters of the transducer Transducer Test gt Output Monitor Displays capture data generated by the transducer gt Transducer Status Displays the transducers status Help gt About Transducer Control 4 Displays version information Revision 4 June 2012 Page 6 Transducer Control User Manual RWT3746IM Transducer Configuration User Configuration Analog Setup The Analog Setup tab of the user configuration allows the user to configure the transducers analog outputs All transducers have dual analog outputs wit
43. hod 1 Processing modes run Frequency Count simultaneously and can be 0 RPM applied to either analog Mode 2 Fast Method lt 2000 RPM channel or accessed Period Count individually via a digital gt 2000 RPM RPM x 1 L RPM 1 2000 1 connection IR temperature sensor monitoring actual shaft temperature Temperature accuracy Reference temperature Tar 20 Operating range ATo J 1 100040 JE Storage range ATs 11 200040 FS C Specifications Specifications TT Combined non linearity and 0 25 40 5 for 2 5Nm and below hysteresis Resolution EST Repeatability ES RWT410 Series Transducers ONLY 20 C SM See 0 25 0 5 for 2 5Nm and below Note 4 3dB Bandwidth 312 default ave 16 RWT420 Series Transducers ONLY Digital averaging SeeNote5 2 4 32 64 18 N 0 GE Note 4 3dB Bandwidth See Note 6 2500 1250 ee ME PE Analog output Output voltages Options available 1 5 10 Unipolar RWT410 Series default setting is 5Vdc Vdc Torque Speed Power RWT420 Series output voltages are user selectable Load impedance Maximum 1 Output currents Options available 4 20 0 20 12 8 mA Torgue Speed Power RWT420 Series output currents are user selectable 4 20mA Loop resistance Should not exceed 400 0 Digital output RWT420 Series Transducers ONLY Single Transfer Up to 500 Hz Output Rate Note 7 Up to 10 KHz Upto NZ Bulk Tran
44. ill be shown to indicate success or failure Revision 4 June 2012 Page 16 Transducer Control User Manual RWT3746IM Transducer Test Output Monitor The Output Monitor displays the capture data generated by the transducer The peak min and max values are generated by the transducer based on the torque speed and power readings captured Zero The zero button instructs the transducer to zero the torque readings The transducer zeros the torque readings by recording the current torque as an offset the offset is then subtracted from all future torque readings AV Zero The AV Zero button works in the same way as the Zero button but will base the offset value on an average of eight torque readings rather than one Reset Peaks Torque The Reset Peaks button instructs the transducer to reset all peak torque values Reset Peaks Power The Reset Peaks button instructs the transducer to reset all peak power values R The R buttons instruct the transducer to reset the appropriate peak values Output Monitor Torque Values Speed Values Current Current Peak 0005 00 len Fat 000000 000000 7 Peak sem 000000 000000 7 0008 00 Peak CCW Peak Cw 0000 00 0008 00 Rotations Degrees Peak Auto Reset 0 0 LR 0008 00 Temperature Values Min Max Shaft Ambient Electronics 0000 00 0008 00 027 0 030 9 030 9 Power Values Speed Fast Captur
45. l Lead is a 2 5m length 15 way D type connector male to 12 pin Lumberg male It is used to configure the RWT420 440 series Digital Adaptor Lead RWT420 440 series ONLY The Digital Adaptor Lead is an optional accessory and plugs into the 15 way D type connector on the 2 5m Digital Lead to provide a dc jack for power and RS232 and or a USB connection depending upon the options requested Note USB specification limits the length of a cable between full speed devices to 5 meters A USB Extender is required for distances greater than 5m please consult factory for USB Extenders Additional Related Products Transducer Display ETD The Transducer Display ETD is a readout suitable for all RWT transducers Although it is primarily used to display torque and peak torque it can also display speed and power provide access to the analog outputs from the transducer and connect the transducer to a PC for use with TorqView and the Transducer Control Program Transducer Signal Breakout Unit The Transducer Signal Breakout Unit which when plugged in powers the transducer and keeps all of the inputs and outputs in one place The Transducer Signal Breakout Unit provides 4mm sockets to output an analog torque and speed signal It enables switching between dc volts 0 20mA 4 20mA zero torque angle and enable peak hold The Transducer Signal Breakout Unit also allows communication with a PC via the built in USB and RS232 ports The Transducer
46. nse system a flying digital averaging technique Is applied to reduce the white noise commensurate with the level of accuracy required However as any averaging algorithm works as a low pass filter the more averaging that is applied the lower the frequency response Therefore each Torqsense system should be optimised to the customer s requirements by choosing the right combination of accuracy frequency response Please see relevant part of the Datasheet and User Manual Data parameters measured at 20 C Sensor Technology Ltd reserves the right to change specification and dimensions without notice Sensor Technology Ltd 2013 RWT3722R Rev2 ul Ge SENSOR NX w TECHNOLOGY LTD Transducer Control 4 User Manual Revision 4 June 2012 Transducer Control User Manual RWT3746IM Table of Contents Jee TT le EE 3 Transducer Requirements secc 3 PO REegUreEMENIS ooroo a de ne a D Sn de Ne ce 3 JE CU Ve WEE 3 Running Transducer Control amp Connecting To Transducer 4 Using Transducer CONWOM ici ees 6 MEDU T L ets en en 6 Transducer Configuration 7 User CONFIQUEAUON EE 7 Analog SC EE 7 DICO SOIR a 13 Ee 13 ue E 14 Ve 16 Transducer Test 17 CUTOUT IO in Tue E 17 FEE NNN 18 Contact Details Sensor Technology Ltd Apollo Park lronstone Lane Wroxton BANBURY OX15 BAY United Kingdom Sales Email stlsales sensors co uk Tel 44 0 1869 2
47. o change between transducers when using TorqView For ease of use the next time TorqView is run it will default to the previously selected port a transducer was connected TorqView Function Bar The TorqView Function Bar located at the bottom of all the screens shows all the relevant TorqView buttons The LED illuminates green when connected to show that the transducer is working correctly If any warnings or errors occur with the transducer while running TorqView the LED will change its colour from Green to Yellow Warning or to Red Error To diagnose the warning or error see the About Screen to diagnose The Function Bar also shows the serial number of the currently active transducer If two transducers are connected they can be changed using the Setup Screen Click EXIT TOROVIEW to exit the program Choose Shutdown to close the program or Standby to disconnect the transducer and leave the screen showing so the program can be run again To run the program from Standby click on the white arrow button at the top left hand corner of the screen Gi TorgView 4 00 File Edit Operate Tools Window Help Click ZERO TORQUE to zero the torque value Care should be taken when using the ZERO TORQUE function because an offset could be created if there is any torque already applied Click ZERO PEAKS to zero the peaks of the Torque Speed and Power values Click POWER GAUGE and TEMP GAUGE
48. ome examples of how the range selection works gt Torque 100Nm FSD Standard Range 0 Nm 100 Nm 10v Scale 10V OV Voltage 10V 100Nm Zero 100Nm Torque gt Torque 100Nm FSD User Defined Range 50 Nm 100 Nm 10v Scale 10V OV Voltage 10V 100Nm Zero 100Nm Torque gt Torque 100Nm FSD User Defined Range 0 Nm 50 Nm 10v Scale 10V OV Voltage 10V 100Nm Zero 100Nm Torque Revision 4 June 2012 Page 9 Transducer Control User Manual RWT3746IM Range effects on resolution The range selection will in no way effect or increase the resolution of the transducer The value expansion is artificial and aids only to give the user a greater change in analog output value Analog Voltage Scaling The Analog Voltage Scaling section configures the zero and output range of the analog output channels The data and range values selected in the Analog Data Select section are scaled to values configured here users can either select from a list of common predefined scales or select a custom scale using the slider bar adjustments Voltage Scale Select The Voltage Scale Select combo box lists the available predefined scales and user select modes When a selection is made the slider bars will adjust to reflect the selection and illustrate the scaling Analog Voltage Scaling Zero Offset Voltage Scale Select 0 10 DV
49. on Values that fall below or above the range are masked off the range selection applies to both negative and positive sides Data Range The user can select a default scale or opt for a custom scale by selecting from the Data Range combo box Default FSD Range The Default FSD Range option scales the selected internal variable based on the FSD rating programmed into the transducer i e 0 to FSD User Defined The User Defined option allows the user to adjust the Range Low and Range High sliders to select a custom scale Revision 4 June 2012 Page 8 Transducer Control User Manual RWT3746IM Range Low Range High The Range Low and Range High slider bars control the low and high scale values The Range Low parameter can be set between 0 and 80 of FSD and the Range High parameter can be set between 20 and 100 of FSD The parameter value is displayed in a text box to the right of each range slider The value is displayed in an appropriate unit for the selected data variable i e Torque Nm or the configured unit Soeed RPM Power Watts To change the high or low range values adjust the slider bar to the left or right until the number in the text box equals the required value The difference between the Range Low and Range High must be greater than 10 of FSD and Range High must be a higher value than Range Low The following graphs illustrate s
50. on of the torque and speed applied Revision 5 March Sensor Technology 2012 Page 4 TSE3168V Digital Screen st TorgView 4 00 The Digital Screen displays the same data less temperature as the Dials Screen but as digital bars The blue coloured bar displays the actual data whereas the orange coloured bar as an underlay of the blue coloured bar displays peak value Actual and Peak values are also displayed as numeric values under the coloured display bars Revision 5 March Sensor Technology 2012 Page 5 TSE3168V Chart Screen st TorqView 4 00 kack L LS LES LS Lem rue L TOR QA IN The Chart Screen displays the data onto a chart Scales are automatically set at initialisation or user set via the Setup Screen Check the Torque Speed Power boxes to select which channels to display Any combination is possible Only the selected channel scales will be visible The Start Chart button starts and stops the chart with the green light illuminated to indicate that the chart has started and no light illuminated to indicate that the chart has stopped With the chart is stopped the horizontal slider can be used to analyse the data The Clear Chart button deletes data from the chart The Center Zero button allows the torque chart go through zero to show bi polar torque Zoom tools are available at the bottom left of the chart The Export Chart button allows the chart s current d
51. orque has been applied greater than the specified FSD Critical overscale Torque has been applied greater than 120 of the FSD Contact factory if warning continues Sensor Technology on the website www sensors co uk at http sensors co uk products pages labvi html Revision 5 March Sensor Technology 2012 Page 9 Capture Board The DSP has failed to initialise Power cycle the transducer Contact factory if error continues SAWS A SAW device has failed Contact factory if error continues Failed Temp sensor The infrared temperature sensor has failed Temperature compensation is ineffective Contact factory if error continues Irregular Voltage One or more of the internal voltages is not within specification Check the input power supply is within specification of the data sheet Contact factory if error continues TSE3168V
52. oustic Wave SAW devices caused when strain is applied The signal is coupled via a non contact RF rotating couple from the shaft to a fixed pick up Integral electronics enables the resonant frequencies to be measured and offer user selectable features digital outputs and diagnostics SAW devices are not affected by magnetic fields LabView VIs are available for users to design their own process control applications DLLs are also available for users to write their own custom software US Patents US5585571 US6478584 RWT3243R RWT410 420 Series Torque Transducers Data Specification Parameter Condition Data Units RWT410 420 Torque measurement system Measurement method Strain Dependent Surface Acoustic Wave Resonators interrogated by an incremental electronic scanning method Torque range See Notes 1 4 0 1 0 11 0 21 0 101 0 501 0 2001 Nm 2 below to 0 20 to 0 100 to 0 500 to 0 2000 to 0 13000 0 10 0 11 0 201 0 1001 0 5001 0 20001 lof in to 0 200 to 0 1000 to0 5000 to 0 20000 to 0 175000 Shaft size diameter 1 6 VR 20 30 Rotation speed angle of rotation measurement system Measurement method Opto switch through slotted disc Pulse output direct from opto switch TTL 5V square wave output is independent of any analog or digital processing Digital Processing Processing Method Update rate for analog and digital outputs 1 Techniques Mode 1 Slow Met
53. portant to measure the average torque rather than fast torque fluctuations then couplings Single membrane with a degree of compliance would be more appropriate coupling Flexible mounting Never use a solid coupling to connect a RWT series transducers Torque Transducer For Transducers below 1Nm or 10lbf in or if the application requires the body to be rigidly mounted then it is recommended that double couplings should be used at each end to compensate for any misalignment of the input output shafts and the system designed to eliminate any end loads on the transducer shaft For applications where end loads cannot be avoided please consult the sales department for advice prior to ordering When using a pulley or pulleys it is recommended a bearing block or blocks should be used to ensure bending loads are not transmitted to the transducer BEARING TRANSDUCER BLOCK LOAD O h PULLEY E a rm HSE COUPLING COUPLING Double membrane el _ coupling Se Jo Rigid mounting FLEXIBLE EARTH STRAP Lastly consider using a guard over the transducer and couplings Sensor Technology 2012 Page 4 RWT3745V Rev 1 Whilst the transducer is resistant to EMC interference to BS EN 61326 1 2006 the sensible routing of cables is important to avoid possible EMC interference Avoid running the transducer cables close and or parallel to high voltage cables solenoid valves generators or inverters etc If the ca
54. rted and is incremented every time a new value is captured and the condition is met The counter will be stopped and reset if the control value falls back between the low and high limits When the counter exceeds the Samples Required Before Trigger parameter the limit output will be set to the active state level configured using the output polarity If the auto reset has not been configured the limit output will remain latched irrespective of the control channel value The limit output can only be reset via a system reset or peak switch input toggle If auto reset is enabled the limit function will enter a reset state when the control channel value falls back between the low and high limits If the reset timeout is enabled the limit output will remain latched until the timeout expires at which point the fail output will return to the inactive state The reset stage is cancelled if the control channel value exceeds the high or low limits during the timeout period if this occurs the timeout is disabled and the limit output will remain in an active state If the reset timeout is disabled the limit output will be instantly set to the inactive state when the control channel value falls back between the low and high limits GE User Transducer Configuration Analog Setup Digital Setup Filters Limits Misc Limits Channel Select Output Mode Enable Limits Torque Active High Active Low Samples Required Before Trigger v 500 Lo
55. sfer Up to 10 KHz Power supply Nominal voltage Vs in 12 to 32 max Current consumption Is ne 230 max amp 12 VDC ME SET E Power consumption Ws 3 Allowed residual ripple of 500 mVp p supply voltage Viippie above nominal supply voltage Electromagnetic compatibili EMC compatibility EE EN 61326 2006 Note 1 Any torque FSD is possible between ranges please specify max rated torque Note 2 Max rated torque should not be exceeded Note 3 Please consult factory for applications requiring rotational speeds that exceed maximum figures given Transducers fitted for IP65 will have running speeds considerably reduced increased drag torque and accuracy can be affected Note 4 SM Static Mode Dynamic values will depend upon user application and has to be adjusted accordingly Note 5 Digital averaging can be configured by user to optimise accuracy frequency response for specific user applications Digital averaging default setting is N 16 For details see User Manual Note 6 gt 5Khz Sample Rate Up to 10Khz sample rate possible please consult factory Digital averaging also affects the analog output max analog output 3dB Bandwidth 5Khz when digital average is 1 Note 7 Output rate figures are calculated from the time taken to capture 10000 torque readings Testing was conducted with each connection method configured at its maximum baud rate The maximum output rate available for CAN and USB is dependant on the trans
56. stered trademark of Microsoft Corporation Lifetime Warranty Sensor Technology Ltd s standard range of torque measuring products are warranted against manufacturing defects and component failure for two years from date of purchase subject to fair wear and tear and return for the first year s free of charge annual re calibration This warranty is extended indefinitely if the equipment is returned to Sensor Technology or its distributor for annual re calibration when software and hardware updates if required will be carried out free of charge Standard range means those products as described in the company s product data sheets Sensor Technology 2012 Page 1 RWT3745V Rev 1 Table Of Contents Getting Started Introduction Unpacking the transducer Mechanical Installation Operating Principles Pre load Operation Powering the transducer Using the transducer Built in Test procedure Normal operation Warning signals Error signal l Zeroing the transducer Resetting transducer to factory default Examples of reading collecting data Optional Accessories Analog Lead Digital Lead RWT420 440 series s ONLY Digital Adaptor Lead RWT420 440 series ONLY Additional Related Products Transducer Signal Breakout Unit AC Mains Adapter Power Supply TorqView RWT420 440 series ONLY Transducer Control Utility RWT420 440 series ONLY Transducer Communication Protocol RWT420 440 series ONLY Transducer DLL Programmers Guide
57. to select power and shaft temperature dials Click RECORD to start recording data See Setup Screen for details on how to set parameters and record save a file Function buttons will change to a darker grey when switched on Revision 5 March Sensor Technology 2012 Page 3 TSE3168V Dials Screen St TorgView 4 00 450 500 550 ew htt EP Center Zero The Dials Screen is the main TorqView screen and displays torque speed power and temperature The torque dial is automatically scaled to the FSD of the connected transducer Units and full scale are displayed on the dial and can be user configured via the Setup Screen The torque dial can be set to display Center Zero zero at the top centre or Normal zero at bottom The blue needle displays the torque applied value Peak Torque is displayed in two ways If the dial is in Center Zero mode orange needles will display the peak value for both the CC and CCW directions If the dial is in Normal mode one orange needle will display the highest peak from either the CC or CCW direction The Speed dial scale is automatically adjusted depending on the value e g if the speed rises above 1000 rpm the scale will auto adjust to 5000 rom The blue needle displays actual speed values whereas the orange needle displays the peak speed value The Temp dial displays the temperature inside the transducer See the Data sheet for limitations The Power dial displays the power as a functi
58. uce the throughput and add latency to programs interrogating the transducer In some circumstances it may not be possible to run at very high baud rates as some systems especially embedded devices may not be able to generate such high baud rates Long cable lengths may also hinder the use if higher baud rates To accommodate all users we have provided a selection of three baud rates e 9600bps e 38400bps e 115200bps To change the baud rate select the desired option from the Baud Rate combo box Please note that a baud rate change will only take effect after a transducer reset Auto Reset The Reset Percentage controls the reset point of the Peak Torque Auto Reset feature The Peak Torque Auto Reset feature monitors the captured torque readings and stores the peak torque value The peak torque value is automatically zeroed when the current torque value drops below the Reset Percentage of the stored peak value To configure the percentage use the slider bar to select a value between 5 and 95 Update Transducer The Update Transducer button will upload the settings to the Transducer Transducer Control will validate the settings before transmission to ensure that there are no errors If an error is detected an onscreen prompt will notify the user and direct them to a resolution If all tests pass the validation check a progress bar will be displayed to indicate the progress of the settings upload a message w
59. w J p 400 j d _ High V 100 Auto Reset Auto Reset Limit Timeout Upload Configuration To enable Limits click the Enable Limits checkbox Channel Select The Channel Select option selects the control channel to be used with the limits feature The user can select between torque and speed Revision 4 June 2012 Page 14 Transducer Control User Manual RWT3746IM Output Mode The Output Mode option selects the polarity of the active triggered state Active High Active triggered state is high inactive is low Active Low Active triggered state is low inactive is high Samples Required Before Trigger The Samples Required Before Trigger parameter sets the number of continuous samples that must exceed the high low limits before the limit output is set to the active triggered state Use the Samples Required Before Trigger slider bar to select a value the slider is scaled from 0 to 1000 in increments of 10 Low High Limits The Low and High limits set the trigger thresholds that control the limit output Low High or both limits must be selected to use the Limits feature The High value must not be lower than the Low value and vice versa Enable the High Low limit by clicking the High Low checkbox then use the High Low slider bar to select the trigger level If torque is selected as a control channel then the slider will be scaled from FSD counter clockwise full sc
60. way D type connector male to 12 pin Lumberg male 15 way D type connector Pwr amp Out 12 Pin female on transducer Pin Description 12 32VDC input GND e 2 GND RS232 RXD CAN LO GND o GND sch CO Pin 5 GND oo PUSBOV LH o o USB POWER 1 OB 4 Mating connector is Lumberg DIN45321 0332 12 BRAID CONNECTED TO GND 15 way D plug 12 Pin Conductive Data amp Aux RWT420 440 Series ONLY male pair EU 2 3 5 6 8 9 QU 12 32VDC input IG PA 2 GND PA2 rsemo rene o o oo D P 4 GND P P5 2 e Leen nunanah G t 6 GND pe USB o C pi 8 L P12 9 USB ov D p2 vo usesrower B P22 ee H mi 5V OUT F P32 Eg ks ANN I Pai 14 RPM TTL M P4 2 ane P5 2 and P6 2 can be connected to any GND at any point BRAID CONNECTED TO GND Male 15 wa Kei Male 12 way Lumberg Sensor Technology 2012 Page 11 RWT3745V Rev 1 Transducer Connections Analog 15 way D socket Pwr amp Out KB 12 32VDC input Power return OV 12 GND Metalwork 6 Analog torque DC mA O 3 Analog Gnd 6 Analog WB Out ORT 7 Zero Input low zero H Push Button Do NOT supply any Peak Input low peak voltage to these ports 8 lt H Push Button Closure to ground only 9 TEDS TERS aj sf 40 AUX cs 330 RR LED 8 1 Fail Output SAMI 5V Ext ES supply BRAID CONNECTED TO GND Digital 15 way D plug Data amp Aux

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