Strip Tension Systems
Contents
1. C lt 0 005 F lt 0 003 Sensitivity drift C lt 0 010 F lt 0 006 1 Values indicate the total capacity of the load cells when taking into account their permissible extended capacity In the extended range above the nominal load some decline in measurement accuracy may be experienced 2 Maximum permitted loads without affecting load cell cali bration 3 At nominal load Accuracy class is defined as the maximum deviation and is expressed as a percentage of the sensitivity at nominal load This includes linearity deviation hysteresis and repeatability error 9 Corrosion resistance properties similar to AISI 304 20 80 C oleh hoes 6 Applies for Height h from load cells bottom surface to roll cen ter line The basic function of the tension electronics is to provide a 330 Hz excita tion to the tension load cells and to process the measurement signals It also provide outputs for control and or indication of the measured tension The signal processing function of the tension electronics amplifies rec tifies and filters the mea Surement signals from the load cells and provides an accurate and reliable output signal Tension Electronics bringing something new to strip tension Covering a wide range of applications the Tension Electronics comes in three versions with differ ent levels of performance and functionality All three versio2. 2 K j Op 1 393 15 47 O O 180 7 09 300 11 81 Er 200 7 87 Data Power supply IP 20 Voltage Power requirement eles Main voltage Frequency Number of load cells Load cell excitation Current Max load Inputs Digital inputs remote zero or gain scheduling Analog inputs connection of multiple PFEA 113 units Outputs Analog outputs voltage or current 5 11 V max load 5 mA 0 21 mA max load 550 selectable filter step response 0 90 can be set for each output scaling function of analog outputs Digital outputs Status OK and or Level detectors self diagnostics Status OK LED green red Alarm on Digital output Alarm via Profibus Multi language interactive display selectable tension units on the display Maximum load memory Zero offset memory Communication Profibus DP baud rate up to 12 Mbit GSD file Environmental tolerance Electrical environment Electrical interference environment Elecrtical safety Ambient temperature Degree of protection D English German Italian French Japanese Portugese 2 Not PFEA 112 65 PFEA 111 PFEA 112 PFEA 113 DC 24 V 18 36 V 7 9 W DC 24 V 18 36 V 100 15 240 10 V AC 45 65 hz 0 5 Arms 330 Hz 2 load cells Plus
3. 20 mA 600 V basic Relay board PXKB 201 PXKB 201 is DIN rail mounted and can be mounted in the IP 65 versions of the Tension Electronics together with the insulation amplifier PFEA 113 65 can hold up to four PXKB 201 Supply voltage Power consumption Contact data AC DC Power supply unit 24V DC 18 mA 6 A at 250 V 6A at 250 V When using the DIN rail IP 20 version of the electronics and 24 V main supply is not available ABB offer optional power supply units The compact units transform main supply from 110 120 V 207 240 V AC to 24 V DC for sup ply of the PFEA 111 112 and 113 Three power supply units with different power ratings are available The table below indicates max number of electronics per power supply unit PFEA III PFEA 112 PFEA 113 SD821 2 5 A 6 SD822 5 A 12 SD823 I0 A 24 6 a 12 6 24 ar Supply of digital outputs are not included Dimension drawings mm inch PFEA 111 112 IP 20 version unsealed 86 3 38 PFEA 113 IP 65 version 16 O K gt 4 ab 7 Cc a c D o Same gt oO N ep 28 F T PLET m c Lu ae lt LL QA 100 3 94 ry Cc 2 Ke 9 z po amp lt o He a o amp 195 7 67 100 3 94 xO c O do A A ere LO TE O i a amp 195 7 67 159 6 26 ry wee lt FA Pa O O5 Fa O jf 2O A
4. 5 Q cable resistance i 0 5 A rms 330 Hz 2 load cells Plus 5 Q cable resistance 0 5 A rms 330 Hz 4 load cells Plus 10 Q cable resistance 15 30 75 250 750 1500 ms 15 30 75 250 750 1500 ms 5 15 30 75 250 750 1500 ms eee eee ee Yes Yes Yes 7 z Yes Yes Yes N KN kg and Ibs N m kN m kg m pli Yes Yes o ABB_0716 GSD ABB_0717 GSD As per EMC Directive 89 336 EEC As per Low Voltage Directive 73 23 EEC As per UL508 Industrial control equipment Ordering guide Product Load cells Model designation Nominal load kN Ibs PFIL 101A 0 5 PFIL 101AE 0 5 PFIL 101AER 0 5 PFIL 101A 1 0 PFTL 101AE 1 0 PFTL 101AER 1 0 PFIL 101A 2 0 PFTL 101AE 2 0 PFTL 101AER 2 0 PFIL 101B 2 0 PFTL 101BE 2 0 PFTL 101BER 2 0 PFIL 101B 5 0 PFIL 101BE 5 0 PFIL 101BER 5 0 PFIL 101B 10 0 PFIL 101BE 10 0 PFIL 101BER 10 0 PFIL 101B 20 0 PFIL 101BE 20 0 PFIL 101BER 20 0 A ook i mak RO Ro Ordering number 3BSE004160R1 3BSE004211R1 3BSE023010R1 3BSE004166R1 3BSE004212R1 3BSE023011R1 3BSE004172R1 3BSE004213R1 3BSE023012R1 3BSE004185R1 3BSE004214R1 3BSE023158R1 3BSE004191R1 3BSE004215R1 3BSE023159R1 3BSE004197R1 3BSE004216R1 3BSE023160R1 3BSE004203R1 3BSE004217R1 3BSE023161R1 Product Nominal load kN Ibs 10 0 2250 Model designation PFTL 201C 10 0 Pre Z0ICE 0O PFTL 201C 20 0 PFTL 201CE 20 0 PFTL 201C 50 0 PETE Z0iCE50 PFTL 201D 50 0 PFTL 201DE 50 0 PFTL 2
5. a num ber of furnace sections in galvanizing and anneal ing lines around the world Linear bearing design with ABB standard load cells This solution is recommended when high axial forces can occur In order to eliminate these axial forces ABB has a proven solution with a linear bearing unit on the free side of the roll ae WAZ an Fa ETTA gt 640 WO a al Following benefits can potentially be achieved when using the ABB solution with linear bearing in furnace installations e The combination ABB Large PillowBlock load cells Linear Bearing is proven to be very reli able with long term stable measurement e The Linear Bearing solution is insensitive to and unaffected by temperature variations e The ABB load cells are virtually maintenace free and the Linear Bearings require a mini mum of service In order to drastically reduce the expansion friction on the free side the standard ABB Large PillowBlock load cell and bearing housing are fitted on a linear bearing unit The axial expansion friction coefficient drops from typically 0 2 inside a bearing housing in good condition to lt 0 01 in a linear bearing unit ABB recommends considering the following issues in order to achieve best possible measurement per formance in the furnace sections e Protection bellows around deflector roll shafts between furnace and bearing
6. component to measure strip tension can be highly advantageous The load cell can be sized to measure just the strip tension excluding the tare weight of the roll The result is optimized measurement accuracy Another advantage is that ABB s unique hori zontal load cell specifically designed to measure this force component provides stiffness levels and overload tolerances in all force directions that are significantly greater than what can be achieved with vertical load cells Four different models with force measure ment capacities ranging from 0 5 kN 112 lbs to 100 kN 22 500 lbs make up the family of hori ABB s horizontal Key advantages e inherently sturdier zontal load cells PFTL 201 and PFTL 101 Pressductor load e Smaller load cell designs are virtu Two versions of the PFTL 201 are available cells are specifically sizes can be speci ally maintenance e The standard version PFTL 201C D equipped designed for horizontal fied since the tare free with Cannon connector for the connection cable force measurement weight won t be a e No contribution to The mill duty version PFTL 201CE DE with factor machine vibration fixed connection cable in protective hose best suited for positions with severe environments PFTL 201C 450 17 72 125 4 92 390 15 35 PFTL 201D 650 25 59 M36 8x ABB 150 5 91 PFTL 201C CE PFTL 201D DE Properties Nominal load rated capac
7. housings must be flexible to avoid axial forces caused by thermal expansions e In order to reduce the load cell temperature variations heat radiation shields may be fitted between load cells and furnace e Deflector roll elongation must be accommo dated by the free side bearing The measure ment influence can be minimized in two ways 1 Clearance between roll bearings and bear ing housings on the free side bearing as well as lubrication must be designed for actual operating conditions 2 ABB s proven solution with linear bearing on the free side of the roll can be utilized to accommodate the roll elongation ABB is working very close with the customer and together we always find the best solution Thanks to the fact that standard load cells are used the same type of load cells can be fitted both in the hot and cold sections of galvanizing and or annealing lines Another advantage is that the standard pedestal bearing houses can be used Consult ABB for advice how to design an opti mal load cell installation in your furnace section ABB s proven solution with linear bearing on the free side of the roll can be utilized to accommodate the roll elongation Pressductor PillowBlock Load Cells horizontal force measurement 10 100 KN In many strip processes the strip tension inher ently produces a horizontal force component on a roll or by design it can be made to do so Using this horizontal force
8. 01D 100 0 PFTL 201DE 100 0 PFCL 201C 5 0 PFCL 201CD 5 0 PFCL 201CE 5 0 PFCL 201C 10 0 PFCL 201CD 10 0 PFCL 201CE 10 0 PFCL 201C 20 0 PFCL 201CD 20 0 PFCL 201CE 20 0 PFCL 201C 50 0 PFCL 201CD 50 0 PFCL 201CE 50 0 Ordering number 3BSE007913R10 3BSE007913R11 3BSE007913R20 3BSE007913R21 3BSE007913R50 3BSE007913R51 3BSE008922R50 3BSE008922R51 3BSE008922R100 3BSE008922R101 3BSE027070R5 3BSE029774R5 3BSE027062R5 3BSE027070R10 3BSE029774R10 3BSE027062R10 3BSE027070R20 3BSE029774R20 3BSE027062R20 3BSE027070R50 3BSE029774R50 3BSE027062R50 Cables Cable with male plug connector 3BSE018741R15 Cable with male plug connector 3BSE018741R30 Cable with male plug connector 3BSE018741R50 Cable with male angled plug connector 3BSE018741R115 Cable with male angled plug connector 3BSE018741R130 Cable with male angled plug connector 3BSE018741R150 Male plug connector without cable YM 321 002 D Male angled plug connector without cable 3BSC860249R1 Junction box PFXC 141 3BSE029997R1 PFTC 101X 3BSE009852R1 Tension Electronics PFEA 111 IP 20 PFEA 111 20 3BSE050090R20 PFEA 112 IP 20 PFEA 112 20 3BSE050091R20 PFEA 113 IP 20 PFEA 113 20 3BSE050092R20 PFEA 111 IP 65 PFEA 111 65 3BSE050090R65 PFEA 112 IP 65 PFEA 112 65 3BSE050091R65 PFEA 113 IP 65 PFEA 113 65 3BSE050092R65 PFEA 113 IP 65 incl 1 insulation amplifier PXUB 201 Voltage output connected to AQ1 PFEA 113 65 1PXV 3BSE050092R165 PFEA 113 IP 65 incl 2 insulation ampl
9. 90 degree wrap angle Linear bearing design ABB PillowBlock load cells type PFCL 201C 20kN installed in a CAPL fur nace section with 180 degree wrap angle Furnace section design solutions Installations in furnace sections Furnace sections in galvanizing and annealing lines are very demanding and it is crucial to con trol strip tension in a correct and accurate way The strip tension range is often large the temperature in the furnace can reach 1000 C and at the load cell position it can be as high as 90 C The elongation of the deflector rolls from furnace start to process temperature can be as large as 50 mm In order to accommodate the large elonga tion with a minimum of influence on measure ment performance the deflector roll installation has to be designed with care In order to keep up with the competition many mills are continuously working on improve ments of the strip quality towards the end users To guarantee a high constant strip quality as well as eliminating the risk of strip breaks the mills want accurate control of strip tension in furnace sections A prerequisite is then reliable strip ten sion measurement independent of furnace tem perature changes ABB offers following design solutions Conventional design with ABB standard load cells This solution is recommended when there are low axial expansion forces The ABB standard load cell have proven outstanding dependability in
10. Strip Tension Systems Pressductor PillowBlock Load Cells Strip tension measurement for process lines Including furnace sections Keeping the tension constant in strip processes Is essential for high product quality and productivity quality tension measurement for quality tension control The PillowBlock load cells are designed for reli able and long term stable strip tension measure ment in process lines like pickling annealing and galvanizing lines The Pressductor based load cells have for more than 50 years proven their superior performance in a large number of demanding applications The performance of the PillowBlock load cells is well proven for applications characterized by heavy rolls high speeds and severe conditions The key reason is the operating principle ABB PillowBlock load cells produce signals as a result of magnetic change which frees them from the limitations and design compromises of mea surement technologies relying on some form of physical movement The result is a load cell that combines strong low impedance signal output with an exceedingly stiff and rugged construction A reliable high performance load cell with exceptional resistance to vibration overloads extreme temperatures and otherwise harsh environments A complete PillowBlock measuring system consists of appropriately sized load cells and a tension electronics A junction box is sometimes used to simplify the cab
11. d filtering of all analog of using calibration weights outputs Mounting To provide flexibility of mounting all three ver sions of the Tension Electronics are available in two mounting alternatives For mounting on a standard DIN rail the IP 20 and for wall mount ing the IP 65 la from ABB factory This means that the fastest sion system is to use a calculated value instead a scaled and zeroed tension output ready for use in control or monitoring o Filter function All units come with a selectable filter function for remov al of roll unbalance machine vibrations and other distur bances Floor cubicle Floor cubicle type MNS Select is available for housing of up to 24 pcs of PFEA 111 112 or 12 pcs of PFEA 113 when mounted on 19 plates Exact numbers depend on the combination of different tension elec tronics and the number of optional units used Options To meet certain special application requirements the following options are available Insulation amplifier PXUB 201 The insulation amplifier can be used when galvanic insulation is required for analog output signals The insulation amplifier can be connected to all versions and PFEA 113 IP 65 can hold up to four PXUB 201 Supply voltage Current consumption Input 0 10 V 0 10 V 0 10V Rated insulation voltage Signal range 24 V 20 253 V ACIDC 10 mA external load Output 0 10V 0 20 mA 4
12. dard version PFCL 201C equipped with Cannon connector for the connection cable PFCL 201CD equipped with a tight cable gland and 20 m Teflon insulated connection cable The mill duty version PFCL 201CE with 20 meter fixed connection cable in protective hose best suited for applications in extremely severe environments Properties Nominal load rated capacity kN Lbs Extended load kN Lbs Permitted load Transverse direction KN horizontal h 300 mm Lbs Overload capacity Measurement direction vertical kN Lbs Transverse direction horizontal h 300 mm kN Lbs Deflection mm 1 1000 in Spring constant kN mm 1000 Ibs in PFCL 201C CD 220 8 66 PFCL 201CE 410 16 14 450 17 72 220 8 66 mm inch 9 0 1125 ifs 1690 2 9 063 90 0 11250 2 9 062 0 02 0 8 200 1430 r D L 410 16 14 450 17 72 PFCL 201C CD CE 10 0 20 0 2250 4500 15 0 30 0 33 0 6 40 9 0 10 0 1125 2200 100 0 200 0 22500 45000 9 0 10 0 1125 2200 0 02 0 02 0 8 0 8 900 1000 2860 0 20 La 50 0 11250 19 0 16900 25 0 5625 500 0 112500 25 0 5620 0 02 0 8 2500 14300 0 98 All load cells Electromagnetic Pressductor Technology Operating principle Accuracy class 0 5 Repeatability error lt 0 05 Operating range 30 1 Stainless steel SIS 2387 DIN X4CrNiMo165 Working temp range 10 to 90 C 14 to 194 F Zero point drift
13. des linearity deviation hysteresis and repeat 14 to 194 F ability error Zero point drift C lt 0 005 F lt 0 003 5 Corrosion resistance properties similar to AISI 304 Sensitivity drift ee lt 0 010 a Applies far 20 80 C fo F lt 0 006 68 176 F Pressductor PillowBlock Load Cells horizontal force measurement 0 5 20 KN In process lines where the tension levels are rela tively low there are smaller sizes of horizontal PillowBlock load cells to choose from These stainless steel load cells comes in two standard sizes PFTL 101A and PFTL 101B and are made for measurement forces between 0 5 and 20 kN They are machined from a solid block of stainless steel to the shape of two steel plates linked by four or six vertical membranes This makes them insen sitive to transverse load but on the other hand they can measure in both horizontal directions Application hint PillowBlock type PFTL 101 comes in three Horizontally mea In applications If no horizontal versions A suring load cells S where high over VA resultant force is e PFTL 101A B with standard Cannon cable are ideal in applications loads can occur in any present mounting the conection with high tare loads and direction the high over load cell on a slant will e PFTL 101AE BE with 20 meter fixed cable relatively small tensions load tolerance in all direc give rise to one and a degree of protection of IP 66 Such as paper machine
14. e they dont measure the tare weight but just the horizontal force compo nent of the strip tension they can be sized smaller than otherwise possible measuring tension with greater accuracy Application requirements may dictate the selection of a vertical load cell But whenever an adequate horizontal force component is present or can be developed the horizontal cell should be considered The size or nominal load of a load cell is contingent on the anticipated force it will measure When a vertical load cell is mounted horizontal ly the most common arrangement the measure ment force Fp is a function of the tension in the strip T the deflection angles and B and the tare weight of the roll and bearings Tare The horizontal load cell senses the strip tension s T horizontal component Fp not the vertical force Fy In this scenario the measurement force Fp is a function of only the tension in the strip T and the strip angles and B Since the tare force the weight of the deflector roll and bearings will not be measured it can be very large compared to the strip tension without affecting the accuracy of the tension measurement i r Specifying the load cell Since load cells are typically used at both ends of a roll rating the individual cell is usually based on half of the resultant force The ideal load cell size is usually the smallest nomi
15. e transducer action the magnetic flux takes place inside a steel core environmen tal factors like dirt or fluids cant degrade perfor mance and reliability Furthermore low transducer impedance less then a couple of ohms helps eliminate suscep tibility to radio frequency and electromagnetic interference Technology How the measurement signal is generated Two commonly used transducer types the strain gauge and the LVDT transducer rely on physi A cal movement in the e transducer to produce a i measurement signal see Strain gauge Stretching alters drawings Stretching compression or bending motions are prerequisites for signal generation ABB s exclusive Pressductor Transducer produces a signal as a result of changes in an electromagnetic field This operat ing principle has its Origin in a metallur gical phenomenon according to which mechanical forces alter the capacity of some steels to convey magnetic flux Two perpendicular windings of copper wire around a Steel core combine to provide the transducers measure ment signal A magnetic field is created in one of the windings sized so there is no magnetic cou pling between them When the transducer is Subjected to a force the magnetic field pat tern changes A portion of the field couples with resistance of electrical circuits IVDT Movement of piston causes signal change in output coils Pr
16. essductor Technology Mechanical force alters mag netic field There is a ABB PillowBlock load cell suitable for most strip processing lines The PillowBlock load cells are designed for reliable and long term stable strip tension measurement in process lines like pickling annealing and galvanizing lines The Pressductor based load cells have for more than 50 years proven their supe rior performance in a large number of demanding applications the second winding and induces an AC voltage This voltage a comparatively strong transducer signal that is proportional to the force is converted by the load cell system s electronics into the system output Ls the V i CSA a Ta Extended range operation An extended range of measurement beyond the nomi nal load allows the PillowBlocks to be sized for normal as opposed to maximum tension levels As a result they permit greater application flexibility in the strip processing line selecting and sizing for best measurement accuracy Designers appreciate V Remarkably high spring constant V Wide measurement range v High reliability Operators value a load cell with V No drift V No recalibration V No failures VY High reliability Measurement essentials Keeping the tension constant in strip processes is essential for high product quality and productiv ity Continuously measuring the tension is an obvious prerequisite for accurate tension c
17. force com ponent Machined from a single block of stainless steel they have exceptionally high tolerance for overloads shock and impact in addition to high immunity to dust and corrosion The standard construction is of highly resis tant stainless steel with potted internal compo nents Mill duty versions are available for excep tionally hostile environments in e g rolling mills galvanizing lines and pickling lines The family of vertical load cells comprises units in four operating ranges offering measure ment capacities from 5 kN 1 125 lbs to more than 50 kN 11 250 lbs ABB s vertical load cells like their counter parts for horizontal measurement feature an extended operating load range Up to 50 percent more measurement capacity is available in this range with fully retained performance character istics except some decline in measurement accu racy As a result in most applications the load cells can safely be specified for the strip s normal tension range but still will accommodate substan tial peak loads ih HD E Wee ae eee ABD PRESSDUCTOR 5 SYSTEM h M O _ 12 In fact both types of ABB PillowBlock load cells feature an exceptionally wide measurement range With the capacity to measure strip ten sion ranges of up to 30 1 they provide valuable machine versatility in processing a variety of applications Three versions are available The stan
18. ifier PXUB 201 Voltage output ed to A01 2 PFEA 113 65 2PXV 3BSE050092R265 PFEA 113 IP 65 incl 3 insulation amplifier PXUB 201 Voltage output connected to AQ1 2 3 PFEA 113 65 3PXV 3BSE050092R365 PFEA 113 IP 65 incl 4 insulation amplifier PXUB 201 Voltage output connected to AO1 2 3 4 PFEA 113 65 4PXV 3BSE050092R465 PFEA 113 IP 65 incl 1 insulation amplifier PKUB 201 Current output connected to A01 PFEA 113 65 1PXC 3BSE050092R1165 PFEA 113 IP 65 incl 2 insulation amplifier PXUB 201 Current output connected to A01 2 PFEA 113 65 2PXC 3BSE050092R1265 PFEA 113 IP 65 incl 3 insulation amplifier PXUB 201 Current output connected to AQ1 2 3 PFEA 113 65 3PXC 3BSE050092R1365 PFEA 113 IP 65 incl 4 insulation amplifier PXUB 201 Current output connected to AQ1 2 3 4 PFEA 113 65 4PXC 3BSE050092R1465 Options Insulation amplifier PXUB 201 PXUB 201 3BSC630149R1 Relay board PXKB 201 PXKB 201 3BSC810039R1 Power supply unit SD821 2 5 A SD821 3BSC610037R1 Power supply unit SD822 5 A SD822 3BSC610038R1 Power supply unit SD823 10 A SD823 3BSC610039R1 Floor cubicle MNS Select ventilated IP 21 including 24 V power supplies 3BSE030582R21 Floor cubicle MNS Select sealed IP 54 including 24 V power supplies 3BSE030582R54 Adapter plates for load cells PFTL 201 and PFCL 201 are available on request Linear bearing solution ask ABB for advise 18 Your application We can quickly assist you in determining the ideal specificati
19. ity kN 10 0 20 0 50 0 50 0 100 0 Lbs 2250 4500 11250 11250 22500 Extended load kN 15 0 30 0 75 0 150 150 0 Lbs 3375 6750 16875 16875 33750 Permitted load Transverse direction kN 100 0 200 0 250 0 500 0 500 0 vertical h 300 mm Lbs 22500 45000 56250 112500 112500 Overload capacity Measurement direction horizontal kN 100 0 200 0 500 0 500 0 1000 0 Lbs 22500 45000 112500 112500 225000 Transverse direction vertical h 300 mm kN 100 0 200 0 250 0 500 0 500 0 Lbs 22500 45000 56250 112500 112500 Deflection mm 0 010 0 020 0 050 0 025 0 050 1 1000 in 0 4 0 8 2 0 1 0 2 0 Spring constant kN mm 1000 1000 1000 2000 2000 1000 Ibs in 5720 5720 5720 11440 11440 All load cells 1 Values indicate the total capacity of the load cells when taking into account their permissible extended capacity In the extended range above the nominal load some decline in measurement accuracy may be experienced Operating principle Electromagnetic Pressductor Technology 4 Accuracy class 0 59 2 Maximum permitted loads without affecting load cell cali Repeatability error D o bration Operating range 30 1 Height h from load cells Stainless steel SIS 23879 3 At nominal load bottom surface to roll cen DIN X4CrNiMo165 Pe 4 Accuracy class is defined as the maximum deviation and is expressed as a percentage of the sensitivity at nominal Working temp range 10 to 90 C load This inclu
20. ling and reduce cabling costs ABB offers two different types of PillowBlock load cells one design intended for conventional vertical force measurement and a second unique design that measures only the horizontal force component resulting from strip tension on a roll Several models and nominal loads are available in standard stainless steel constructions as well as in acid resistant and mill duty versions The user friendly digital signal processing electronics provides a high level of functionality to ary cover a wide range of applications The assurance of Pressductor Consistent measurement e Exceptional stiffness e Durable construction e Long service life Recalibration free The Pressductor difference Like ABB s other load cells based on Pressductor Technology PillowBlock load cells rely on electro magnetic changes in the transducer not on physical movement to sense fluctuations in strip tension The Pressductor Technology operating principle provides improvements in load cell performance characteristics including reliability notably absence of drift durability repeatability and wider measurement range Machined from a solid block of steel the load cells are rugged and stiff affording high overload protection as well as an extended mea surement range above the nominal capacity And they won t contribute to machine vibration even at high speeds Since th
21. nal capacity rat ing accommodating that force level so long as the force exceeds 10 percent of the nominal load Before choosing a larger size however consider using the extended range feature of ABB load cells And always verify that overload specifica tions will not be exceeded in either direction Vertical measuring load cells Horizontal measuring load cells Application roll FRtot FR lare I Sina sinB Tare F ytot F y cosB cosax FRtot FR I cosB cosa Fytot F vt lare T sinB sina Tare T Fy FR Force component of Tension in the measuring direction FRtot Total force in the measuring direction Fy Force component of Tension transverse to the measuring direction F tot Total force in the transverse direction Tension in strip Tare Weight of roll and bearings B Deflection angles Application hint Two 10 percent applica tion guidelines are useful in selecting load cell SIZeS The proportion Of strip tension that is actually sensed by the load cell should be at least 10 percent of total strip tension For operational conditions producing values below 10 percent consult ABB During normal oper ation the sensed force should not be less than 10 percent of the load cell s capacity Vertical force Horizontal 7 force LIQ OW e Conventional design ABB PillowBlock load cells type PFTL 201C 20kN installed in a CAL furnace section with
22. ns have multi language digital display and configuration keys The configuration keys being used for setting different parameters and to check the status of the tension system The 2 x 16 character display can present sum difference or individual load cell signals All three versions are available in both DIN rail version and enclosed IP65 version for mounting in more severe envi ronments 3 an 4s 2 49 18 tm 46 PReeee ae 7 14 PFEA 111 A cost effective compact and user friendly tension electronics providing an accurate and reliable fast analog SUM signal from two load cells for control and or monitoring The display can show the SUM individual A amp B and difference signal The small size and DIN rail mount make this unit very easy to integrate into many types of electrical cabinets PFEA 112 This unit provides the same functionality and user friendliness as the PFEA 111 with the addition of fieldbus communication via Profibus DP PFEA 113 This advanced tension electronics can supply up to four load cells and has six configurable analog outputs for control and or monitoring of strip tension The output signals are also available on Profibus DP Another useful feature is the possibility to via the digital input or Profibus switch the gain for two different web paths Alternatively the digital input could be used for remote gain scheduling or zero set This unit also includes a self diagnostic f
23. ons of one or several PillowBlock Tensiometer Systems Simply fill in the details of your application on copies of this page and fax them to us Strip path On the template at right sketch the strip path of your application Indicate the load cell position and close esti mates of angles a B and if applicable y to the horizontal dashed lines aS appropriate Machine attributes Please indicate the pertinent machine attributes below Roll specifications Strip tension Width mm in Normal Weight kg Ibs Max Shaft dia mm in Min speed rom Please fill in your address information below Name Title Company Address City o County Tel Fax E mail 19 Examples T B o Specify Strip width KN or kN mm Ibs or pli Min mm in KN or kN mm Ibs or pli Max mm in KN or kN mm Ibs or pli Please fax to 46 21 34 00 05 or mail to ABB AB Force Measurement S 721 59 V ster s sweden Tel 46 21 32 50 00 Fax 46 21 34 00 05 Internet www abb com pressductor ABB www abb com is a leader in power and automation technologies that enable utility and industry customers to improve performance while lowering environmental impact The ABB Group of companies operates in around 100 countries and employs more than 110 000 people The main focus of ABB Process Automation is to provide customers with integrated solutions for control plant optimization and industr
24. ontrol Drives and operator instruments need quick and accurate input to regulate tension levels and mon itor line performance Most strip processing lines put a premium on long term reliability in addition to accuracy and overall performance The measurement system after all is the front line of line control exposed to all the rigors of the operating environment The costs associated with downtime and poor product bring out the true value of its compo nents Quality measurement technology for superior tension control that will keep your processing lines productive and producing top notch out put that s what you can expect from us Were entirely devoted to providing process measure ment systems and services and we have 50 years of experience in the field We have an extensive knowledge and experience in web and strip ten sion as well as force measurement for most pur poses and applications Selecting and sizing load cells Two types of ABB PillowBlock load cells are designed for either conventional vertical force measurement or to sense the horizontal force component that may arise as the processed strip partially wraps around a measurement roll Using the horizontal load cells can be quite advantageous By design they can be made excep tionally sturdy rugged and stiff So requirements for recalibration other maintenance or replace ment are negligible and they won t contribute to machine vibration Sinc
25. s tions of ABB s horizontal e PFTL 101AER BER made in acid resistant PillowBlock load cell stainless steel and with 20 meter fixed cable adds reliability All load cells are delivered standard calibrated V According to IEC 529 EN 60 529 PFTL 101A 125 4 92 PRESSDUCTOR SYSTEMS i 170 6 69 0 71 230 9 06 PFTL 101B M16 260 10 24 98 0 79 104 4 09 8 ABB Ha PRESSDUCTOR SISTEMS l 10 Properties Nominal load rated capacity Permitted load in transverse direction Overload capacity Measurement direction horizontal Deflection Spring constant All load cells Operating principle PFTL 101A AE AER kN 0 5 1 0 2 0 Lbs 112 225 450 kN 5 0 10 0 10 0 Lbs 1125 2250 2250 kN 25 5 0 10 0 Lbs 562 1125 2250 mm 0 015 0 015 0 015 1 1000 in 0 6 0 6 0 6 kN mm 32 65 130 1000 Ibs in 183 3 1 43 2 0 450 30 0 6740 10 0 2250 0 015 0 6 130 143 PFTL 101B BE BER 5 0 10 0 1125 2250 30 0 30 0 6740 6740 20 0 90 0 0625 11250 0 015 0 015 0 6 0 6 320 650 1857 3 15 1 Maximum permitted loads without affecting load cell calibration Electromagnetic Pressductor Technology 2 At nominal load Accuracy class 0 9 3 Accuracy class is defined as the maximum deviation and Repeatability error Yo lt 0 05 is expressed as a percentage of the sensitivity at nominal Operating range 30 1 load This includes linearity deviation hystere
26. sis and repeat Standard mill duty version ability error Stainless steel SIS 2383 Degree of protection Acid resistant version Stainless steel Degree of protection Working temp range Zero point drift Sensitivity drift DIN 17440X12CrMos17 IP 65 standard version 5 According to IEC 529 EN 60 529 IP 66 mill duty version Corrosion resistance properties similar to AISI 430F Corrosion resistance properties similar to AISI 316L SIS 2348 DIN 17440X2CrNiMo17 132 Applies for IP 66 67 gt NEMA 4 10 to 105 C Ao 22 ee C lt 0 003 F lt 0 002 C lt 0 015 F lt 0 007 20 80 C 66 o ty 20 0 4500 40 0 9000 80 0 18000 0 015 0 6 1300 1430 For applications that demand vertical force measurement the Standard and mill duty versions of ABB s ver tical PillowBlock load cell provide the best in measurement range and durability Extended range operation An extended range of measurement beyond the nominal load allows ABB s PillowBlock load cells to be sized for normal as opposed to maxi mum tension levels As a result they per mit greater application flexibility in the strip processing line Pressductor PillowBlock Load Cells vertical force measurement 5 0 50 0 KN These units are designed for strip tension mea surement in applications where it is essential or advantageous to determine the vertical
27. unction and four configurable digital outputs for alarms and level detection Status of self diagnostic functions are also available on Profibus DP The high level of functionality and user friendliness make the PFEA 113 one of the most complete tension electronics on the market V According to IEC 529 EN 60 529 Features and benefits e Interactive menu The tension electronics has a unique interactive menu which guides the commissioning step by step eliminating the potential for making mistakes and significantly reducing start up time An extremely helpful tool Fieldbus communication Versions PFEA 112 and PFEA 113 have field bus communication via Profibus DP as stan dard In contradiction to many other tension systems the PFEA 112 and PFEA 113 provide PAOCESS FIELD BLS o Built in self diagnostics j The electronics continuously supervise a number of important parameters and provides error messages if something goes wrong o Multi language display The multi language display is a great feature that helps to eliminate mistakes during start up and or operation of the tension system e Commissioning without calibration weights e Load memory All Pressductor load cells are standard cali The resetable load memory stores max load brated to the same sensitivity before delivery values A useful tool for maintenance and most accurate way to commission a ten e Analog outputs Individual scaling an
28. y specific application knowledge Key customer benefits include improved asset productivity and energy savings ABB Force Measurement is a unit within ABB Process Automation We provides equipment for accurate reliable measurement and control in a broad range of applications in the metal paper and marine industries AA ED ED FrN EDIEID ABB AB Force Measurement S 721 59 V ster s Sweden Phone 46 21 32 50 00 Fax 46 21 34 00 05 Internet www abb com pressductor Print Edita V stra Aros Vasteras 2009 06 3BSE036625R0401
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