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29

Magtrol TM Series In-Line Torque Transducers

Chapter 2 – Installation / Configuration

2.6 

eleCtroniC signal proCessing

Magtrol  offers  electronic  processing  units  that  collect  signals  from  its  transducers  and  displays 
them on an LCD screen. These units have also been designed for digital processing of the measured 
values.

2.6.1 

M

odel

 3410 T

orque

 d

ISplay

The Model 3410 Torque Display (formerly Model 3400) processes the torque and speed signals, 
displays the measured torque and speed values, and displays the calculated power value.

Figure 2–11  Model 3410 Torque Display

With its RS-232 interface, data can be sent to a PC for processing with the LabVIEW™-based 
Torque 1.0 Software that is supplied with each 3410 Torque Display.

TRANSDUCER 

SPEED 

TORQUE 

Model 3410 

Torque Display 

TM Series

Torque Transducer

PC 

Torque 1.0

Software

RS-232C 

MAGTROL 

SYSTEM 

SELECT 

TA

R

E

 

Figure 2–12  PC-Based System Configuration with Model 3410 Display

 

Note: 

For additional information regarding the operation of the Model 
3410 Display, refer to the corresponding User's Manual (available 
online at www.magtrol.com). 

Summary of Contents for TM 300 Series

Page 1: ...TM 300 Series In Line Torque Transducers User s Manual Via Paolo Uccello 4 20148 Milano Tel 39 02 48 009 757 Fax 39 02 48 002 070 info dspmindustria it www dspmindustria it ...

Page 2: ...W is a trademark of National Instruments Corporation Microsoft is a registered trademark of Microsoft Corporation National Instruments is a trademark of National Instruments Corporation Windows is a registered trademark of Microsoft Corporation Purchase Record Please record all model numbers and serial numbers of your Magtrol equipment along with the general purchase information The model number a...

Page 3: ...ration 2 Check line voltage before operating electronic equipment 3 Make sure that all rotating parts are equipped with appropriate safety guards Note Detailed information regarding safety guards can be found in Section 2 5 Protective Systems 4 Periodically check all connections and attachments 5 Always wear protective glasses when working with rotating elements 6 Never wear a necktie or baggy clo...

Page 4: ...F Overload limit updated 1 3 1 1 3 2 1 3 3 04 10 10 1st Edition rev E Added information regarding vertical installation of a TM TMB 2 1 3 28 07 09 1st Edition rev D Added information regarding connection to an differential amplifier 2 7 3 10 09 08 1st Edition rev C Updated Figure 2 3 Parastic Forces 2 2 12 18 07 1st Edition rev B New transducer model TM 309 1 3 2 2 2 1 2 2 2 and 2 4 3 01 10 07 1st...

Page 5: ...ces 18 2 2 1 Radial Forces Bending 19 2 2 2 Axial Forces Thrust 20 2 3 measuring shaft vibrations 21 2 3 1 Permitted Vibrations on Measuring Shaft 21 2 3 2 Torque Signal Conditioning Electronic Circuit 23 2 4 Mounting limits 24 2 4 1 Dynamic Torque 24 2 4 2 Natural Frequency of Drive Train 24 2 4 3 Natural Measuring Shaft Torsional Frequency 26 2 4 4 Maximum Dynamic Amplitude 27 2 5 Protective Sys...

Page 6: ...ro switches and Offset Adjustment Potentiometer 23 Figure 2 7 Simplified Drive Train Model 24 Figure 2 8 Frequency Response Graph 25 Figure 2 9 Admissible Dynamic Load 27 Figure 2 10 Example of Protective System 28 Figure 2 11 Model 3410 Torque Display 29 Figure 2 12 PC Based System Configuration with Model 3410 Display 29 Figure 2 13 Model 6400 Torque Transducer Display 30 Figure 2 14 PC Based Sy...

Page 7: ... an overview of the structure of the manual and the information contained therein Some information has been deliberately repeated in different sections of the document to minimize cross referencing and to facilitate understanding through reiteration The structure of the manual is as follows Chapter 1 Introduction Contains the technical data sheets for Magtrol s TM In Line Torque Transducers which ...

Page 8: ...tion This is used to draw the operator s attention to information directives procedures etc which if ignored may result in damage being caused to the material being used The associated text describes the necessary precautions to take and the consequences that may arise if the precautions are ignored Warning THIS INTRODUCES DIRECTIVES PROCEDURES PRECAUTIONARY MEASURES ETC WHICH MUST BE EXECUTED OR ...

Page 9: ...cessing electronics These elements along with two sealed bearings having lifelong lubrication are all contained in an aluminium housing which also supports the shaft The upper part of the unit contains the built in electronics This part is sealed according to the IP44 standard and offers protection against splashed water A Souriau connector allows the torque transducer to be connected to an extern...

Page 10: ... transformer torque measuring technology This measuring technology offers many benefits most notably that no electronic components rotate during operation To provide customers with several price performance options Magtrol offers three torque transducer models basic accuracy TMB series high accuracy TM series and high speed with high accuracy TMHS Each transducer consists of a hardened stainless s...

Page 11: ...ed Range of Use 1 to 20 000 rpm TMHS 303 1 to 40 000 rpm TMHS 304 308 1 to 50 000 rpm 1 to 6 000 rpm Number of Teeth 60 Z Minimum Speed Detection 1 rpm ENVIRONMENT Storage Temperature Range 40 C to 100 C Operating Temperature Range 40 C to 85 C Mechanical Shock according to IEC 68 2 27 Class D3 Vibration according to IEC 68 2 6 Class D3 Protection Class IP 44 MECHANICAL CHARACTERISTICS Shaft Ends ...

Page 12: ...oil The conditioning electronic circuit incorporated in the transducer converts the voltage to a nominal torque signal of 0 to 5 VDC A low pass filter Butterworth 2nd order adjustable from 5 kHz to 1 Hz allows tuning of the torque signal frequency limitation An optical sensor reads the speed on a toothed path machined directly on the measuring system The electronic conditioner outputs a frequency ...

Page 13: ... Features include Adjustable English metric and SI torque units Large easy to read vacuum fluorescent display Built in self diagnostic tests Overload indication Tare function RS 232 interface Torque and speed outputs Closed box calibration Includes Magtrol Torque 1 0 Software The Model 6400 Display has the following additional features Pass fail torque speed power testing capabilities RS 232 and I...

Page 14: ...any benefits most notably that no electronic components rotate during operation To provide customers with several price performance options Magtrol offers three torque transducer models basic accuracy TMB series high accuracy TM series and high speed with high accuracy TMHS Each transducer consists of a hardened stainless steel shaft with smooth or splined shaft ends an anodized aluminium housing ...

Page 15: ...REMENT Rated Range of Use models 309 311 1 to 10 000 rpm 1 to 32 000 rpm 1 to 4 000 rpm models 312 313 1 to 10 000 rpm 1 to 24 000 rpm 1 to 4 000 rpm Number of Teeth 60 Z Minimum Speed Detection 1 rpm ENVIRONMENT Storage Temperature Range 40 C to 100 C Operating Temperature Range 40 C to 85 C Mechanical Shock according to IEC 68 2 27 Class D3 Vibration according to IEC 68 2 6 Class D3 Protection C...

Page 16: ... 2 913 3 425 2 3622 2 3603 1 7726 1 7707 0 315 2 913 3 5453 3 5413 0 260 M5 0 394 0 787 310 X11 mm 39 4 12 76 10 110 130 74 87 60 0 0 05 45 0 025 8 74 90 0 05 7 M5 10 20 in 1 551 0 472 2 992 0 394 4 331 5 118 2 913 3 425 2 3622 2 3603 1 7726 1 7707 0 315 2 913 3 5453 3 5413 0 276 M5 0 394 0 787 311 X11 mm 44 4 12 76 10 110 130 74 87 60 0 0 05 45 0 025 8 74 90 0 05 7 M5 10 20 in 1 748 0 472 2 992 0...

Page 17: ... 8 91 216 60 in 3 7791 3 7782 3 071 0 587 0 413 M10 0 295 0 866 1 181 1 591 0 898 3 583 8 504 2 362 313 X21 mm 96g6 78 14 9 10 5 M10 7 5 22 30 52 4 22 8 91 240 60 in 3 7791 3 7782 3 071 0 587 0 413 M10 0 295 0 866 1 181 2 063 0 898 3 583 9 449 2 362 Model units P Q R S Ø T U V W X Y Z AA CC 312 X21 mm 25 21 40 8 39 22h6 47 8 18 83 10 119 139 80 87 in 0 984 0 827 1 606 1 535 0 8661 0 8656 1 882 0 7...

Page 18: ... 6 4 M6 5 0 16 21 41 2 16 8 86 200 4 20 in 3 2283 3 2270 2 52 0 378 0 252 M6 0 197 0 63 0 827 1 622 0 661 3 386 7 89 0 787 312 431 mm 96g6 78 14 9 10 5 M10 7 5 22 30 46 4 22 8 91 228 0 25 in 3 7791 3 7782 3 071 0 587 0 413 M10 0 295 0 866 1 181 1 827 0 898 3 583 8 976 0 984 313 431 mm 96g6 78 14 9 10 5 M10 7 5 22 30 56 4 22 8 91 248 0 25 in 3 7791 3 7782 3 071 0 587 0 413 M10 0 295 0 866 1 181 2 2...

Page 19: ...ing quality according to speed range Alignment capability Thehigherthespeedoftheapplication themorecareisrequiredin selecting the coupling and assembling alignment and balancing the drive train configuration Your Magtrol sales representative can assist you in choosing the right coupling for your transducer Torque Speed Box Magtrol s TSB Torque Speed Box allows data acquisition from two torque tran...

Page 20: ...r torque measuring technology This measuring technology offers many benefits most notably that no electronic components rotate during operation To provide customers with several price performance options Magtrol offers two torque transducer models high accuracy TM series and high speed with high accuracy TMHS Each transducer consists of a hardened stainless steel shaft with smooth or splined shaft...

Page 21: ...o 16 000 rpm 316 317 1 to 5 000 rpm 1 to 12 000 rpm Number of Teeth 314 317 60 Z Minimum Speed Detection 314 317 1 rpm ENviRONMENT Storage Temperature Range 314 317 40 C to 100 C Operating Temperature Range 314 317 40 C to 85 C Mechanical Shock 314 317 according to IEC 68 2 27 Class D3 Vibration 314 317 according to IEC 68 2 6 Class D3 Protection Class 314 317 IP 44 MEChANiCAl ChARACTERiSTiCS Shaf...

Page 22: ...nominaltorquesignalof0to 5VDC A low passfilter Butterworth 2ndorder adjustablefrom5kHzto 1 Hz allows tuning of the torque signal frequency limitation An optical sensor reads the speed on a toothed path machined directly on the measuring system The electronic conditioner outputs a frequency signal proportional to the shaft rotational speed An active circuit compensates the zero and sensitivity temp...

Page 23: ...1 7323 1 7317 3 248 0 709 316 X21 mm 155g6 135 28 4 21 M20 15 42 53 82 7 25 8 124 340 80 33 24 83 5 80 55h6 94 5 18 in 6 1018 6 1008 5 315 1 118 0 827 M20 0 591 1 654 2 087 3 256 1 016 4 882 13 386 3 150 1 299 0 945 3 287 3 150 2 1654 2 1646 3 721 0 709 317 X21 mm 155g6 135 28 4 21 M20 15 42 53 107 7 25 8 124 390 80 33 24 108 5 105 60h6 119 5 18 in 6 1018 6 1008 5 315 1 118 0 827 M20 0 591 1 654 2...

Page 24: ...ing quality according to speed range Alignment capability Thehigherthespeedoftheapplication themorecareisrequiredin selecting the coupling and assembling alignment and balancing the drive train configuration Your Magtrol sales representative can assist you in choosing the right coupling for your transducer Torque Speed Box Magtrol s TSB Torque Speed Box allows data acquisition from two torque tran...

Page 25: ...N OPERATION STOP SYSTEM BEFORE PERFORMING MAINTENANCE D C B A F E Figure 2 1 Suspended Installation 2 1 1 1 Advantages Single element couplings are less expensive than double element couplings Shorter drive train leading to a higher torsional resonance frequency as compared to double element couplings 2 1 1 2 Disadvantages Increase of radial play as the torque transducer is not directly fixed to t...

Page 26: ...M BEFORE PERFORMING MAINTENANCE D C B A F E F r F r F a F r F r F a F a CAUTION ROTATING PARTS IN OPERATION STOP SYSTEM BEFORE PERFORMING MAINTENANCE D C B A F E Suspended Installation Supported Installation Correct Electronic and connector left from shaft when looking into the connector Caution Please refer to manuals for max acceptable Fa force CAUTION ROTATING PARTS IN OPERATION STOP SYSTEM BEF...

Page 27: ...mation of the measuring shaft leading to false measuring results The following table lists the maximum radial forces Fr allowed for TMB TM and TMHS Series torque transducer shafts in suspended and supported installations Model Fr max Suspended installations Fr max Supported installations TM TMB if available TMHS N N N TM 301 8 N A TM 302 16 N A TM 303 25 25 TM 304 20 50 50 TM 305 40 80 80 TM 306 7...

Page 28: ...nsducer is lower than the allowed force in the case of suspended installation Note It is important to avoid the simultaneous application of radial and axial forces on the measuring shaft of a transducer especially with supported installations The following table lists the maximal axial forces Fa allowed for TMB TM and TMHS Series transducer shafts in suspended and supported installations Model Fa ...

Page 29: ...e measuring shaft generates vibrations These vibrations express themselves in either speed in m s or acceleration in m s or g Note g is normally used as a unit for acceleration It represents the Earth s acceleration of 9 81 m s often rounded up to 10 m s Both of these parameters depend on the radial displacement and the speed of the shaft The formulas used to calculate this speed and acceleration ...

Page 30: ...ers have been tested by under the following conditions 2 3 1 1 Random Vibration Power spectral density of 0 05 g Hz between 20 Hz and 500 Hz 90 minutes of vibration applied along each of the 3 axes x y z 2 3 1 2 Sinusoidal Vibration Sweep between 10 Hz and 500 Hz at a rate of 1 octave minute From 10 Hz to 60 Hz 0 35 mm peak to peak amplitude From 60 Hz to 500 Hz 5 g peak to peak amplitude Cycle pe...

Page 31: ...ometer simply positioning the SW12 micro switch to ON A full scale zero adjustment of 10 equivalent to 0 5V can then be carried out by the potentiometer With the SW12 micro switch to OFF the default settings are used Note There are no functions allocated to the SW11 micro switch Label affixed to cover of transducer s built in electronics SW1 SW12 Micro switches ON 1 2 3 4 5 6 7 8 9 10 12 11 ON 1 2...

Page 32: ...y damage to the system it is necessary to calculate the natural frequency of the drive train torsional oscillations In this system however the deformation area of the measuring flange is the weakest link in the rotating measuring chain and is subject to torsional vibrations In practice this situation can generate rather complex relations which require demanding calculations This may be for instanc...

Page 33: ...btain the inertia ratings of these drive train components The natural torsional frequency f0 determines the following the frequency response of the torque measuring system whether or not rapid variations in torque can be accurately sensed whether or not the torque signal is amplified or attenuated by the dynamics of the drive train The transfer response is plotted in Figure 2 8 for various quality...

Page 34: ... lists the natural frequency of each TM Torque Transducer Model Natural Torsional Frequency Hz TM 301 TM 302 171 TM 303 255 TM 304 355 TM 305 476 TM 306 665 TM 307 903 TM 308 1058 TM 309 613 TM 310 879 TM 311 1096 TM 312 TM 312 021 1168 1150 TM 313 TM 313 021 1405 1338 TM 314 TM 314 021 1227 1269 TM 315 TM 315 021 1302 1334 TM 316 1219 TM 317 1212 These values are not yet available Note All three ...

Page 35: ...R AS WELL AS ALL OTHER SURROUNDING people and OBJECTS WILL NOT BE INJURED OR DAMAGED AS A RESULT OF THE Drive element BECOMING BLOCKED A TORQUE OVERLOAD OR ANY OTHER potential PROBLEM The following precautions concerning protective equipment of the drive train must be observed Protective elements must prevent access to moving parts during test Protective elements must cover all parts which can cau...

Page 36: ...28 Magtrol TM Series In Line Torque Transducers Chapter 2 Installation Configuration Figure 2 10 Example of Protective System ...

Page 37: ... displays the measured torque and speed values and displays the calculated power value Figure 2 11 Model 3410 Torque Display With its RS 232 interface data can be sent to a PC for processing with the LabVIEW based Torque 1 0 Software that is supplied with each 3410 Torque Display TRANSDUCER SPEED TORQUE Model 3410 Torque Display TM Series Torque Transducer PC Torque 1 0 Software RS 232C MAGTROL SY...

Page 38: ...are formerly TM Software that is supplied with each 6400 Torque Display MODEL 6400 TORQUE TRANSDUCER DISPLAY Power Supply AC Model 6400 6400A 10 VDC Auxiliary Input Device Data Acquisition System Input Power 120V 60Hz 240V 50 Hz TM TMHS or TMB Torque Transducer GPIB RS 232 PC TM or Torque 1 0 Software or RS 232C GPIB IEEE 488 CAUTION DOUBLE POLE FUSING 16VA 50 60Hz EARTH GROUND FUSE 5 20mm 120V UL...

Page 39: ...ual testing capabilities to help determine the performance characteristics of a motor under test and also provides pass fail testing for production line and inspection applications Below is just one example of a system configuration in which both a Magtrol dynamometer and torque transducer are utilized Motor Under Test DYNAMOMETER TSC1 AUX TSC2 SUPPLY 2 SUPPLY 1 RS 232C GPIB IEEE 488 BRAKE ACCESSO...

Page 40: ... to be connected for the system to be operational 2 7 1 Grounding Caution Before connecting the TM Torque Transducer to the signal processing unit the transducer s housing must first be earth grounded The torque transducer test bench driving machine and driven machine must be commonly grounded With supported torque transducer installations the support connects the transducer with the test bench gr...

Page 41: ... 19 A F E D C B A Power supply 20 to 32 VDC B Torque signal 10 to 10 VDC C N C D Power supply torque grounding 0 VDC E Test signal high impedance F Speed signal open collector Figure 2 18 6 pin Souriau Connector Configuration Note The test function is only active when the input is grounded 1 4 3 2 8 9 10 11 6 5 12 13 7 14 1 N C 2 N C 3 Supply 24 VDC 4 Power supply grounding 0 VDC 5 Shield 6 N C 7 ...

Page 42: ...ired for elimination of potential DC voltage developing in the 0V leg 0VAL If there is no Differential Amplifier a zero shift of the torque signal will occur depending on the resistance and the length of the cable 2 7 3 1 Pull up Resistance A pull up resistor must be incorporated into the circuit Pull up resistance should be set to the following dependent upon the VCC of the application VCC Pull u...

Page 43: ...In Line Torque Transducers Chapter 2 Installation Configuration gray yellow red blue white green brown yellow black Tacho O P UAL OVAL Torque O P OVSig BITE F A D B D D shield C E Shield Figure 2 21 ER 107 Pin Configuration ...

Page 44: ...ternal cylinder on one side of the deformation zone and the internal cylinder on the opposite side Both cylinders have two series of slots on their surface When there is no torque being applied to the measuring shaft the slots in both cylinders fail to overlap Because the cylinders are non magnetic there is total screening and differential induction cannot be generated between the primary and seco...

Page 45: ...voltage signal 3 2 Speed conditioning chain A speed transducer is incorporated into the torque transducer housing in order to measure the rotational speed of the measuring shaft This optical transducer is mounted facing a toothed part of the rotor and produces 60 pulses per revolution 3 3 Built in self test circuit The torque transducer s connector has a pin allocated for activating a test signal ...

Page 46: ...n the transducer is operated outside its optimal working conditions This is especially true when the transducer is operated at excessive rotational speeds which results in the generation of axial and radial forces on the bearings Caution The user should not attempt to change the bearings himself The transducer should be returned to Magtrol for this operation Similarly the user should not attempt t...

Page 47: ... shipment Model number part number serial number order number and date of acquisition Description of the defect and the conditions in which it appeared Description of the test bench drawing photographs sketches etc Description of the tested object drawing photographs sketches etc Description of the test cycle Caution Maintenance must be performed by Magtrol in order to guarantee future measuring a...

Page 48: ...ing Measurement and Control of Torque Speed Power Load Force Weight Tension Displacement Via Paolo Uccello 4 20148 Milano Tel 39 02 48 009 757 Fax 39 02 48 002 070 info dspmindustria it www dspmindustria it ...

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