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ABB PFTL 101 User Manual
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ABB PFTL 101 User Manual

Pressductor pillowblock load cells horizontal measuring
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A B B M E A S U R E M E N T & A N A LY T I C S
Pressductor Pillowblock Load Cells
Horizontal Measuring PFTL 101
User manual
3BSE009965R0401 en Rev E

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  • Page 1 — A B B M E A S U R E M E N T & A N A LY T I C S Pressductor Pillowblock Load Cells Horizontal Measuring PFTL 101 User manual 3BSE009965R0401 en Rev E...
  • Page 2 AB. ABB AB assumes no responsibility for any errors that may appear in this document. In no event shall ABB AB be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, nor shall ABB AB be liable for incidental or consequential damages arising from use of any software or hardware described in this document.

  • Page 3: Table Of Contents

    Recycling the Transport Material..............6 1.3.4 Disposal of the Product................. 6 Function and Design..................7 1.4.1 General......................7 1.4.2 Loads cells PFTL 101................... 7 1.4.3 Principle of Measurement................8 Description General......................9 Technical Data.................... 10 Definitions....................11 Measuring principle of the sensor..............14 Mounting Arrangement................
  • Page 4 Cabling....................... 21 Commissioning General....................... 23 Preparatory Calculations................23 Maintenance General....................... 24 Preventive Maintenance................24 Spare Parts....................24 Fault Tracing General....................... 26 Interchangeability..................26 Fault Tracing Procedure................26 Fault Tracing in the Mechanical Installation..........27 6.4.1 Defective Mounting Surface, Support or Adapter Plates......27 6.4.2 Force Shunting...................

  • Page 5: Introduction

    1.3.1 Environmental Policy ABB is committed to its environmental policy. We strive continuously to make our products envi- ronmentally more sound by applying results obtained in recyclability and life cycle analyses. Prod- ucts, manufacturing process as well as logistics have been designed taking into account the envi- ronmental aspects.

  • Page 6: Recycling Electrical And Electronic Equipment, Weee

    1.3.3 Recycling the Transport Material ABB designs all transport material to be recyclable where practical. The recycling of the transport material depends on the material type and availability of local recycling programs. After receiving the system into the site, the package and the transportation locking have to be removed.

  • Page 7: Function And Design

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 1 Introduction Function and Design 1.4.1 General A complete measuring system normally consists of two load cells, a junction box, one control unit with two measurement channels and cabling. Adapter plates...

  • Page 8: Principle Of Measurement

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 1 Introduction 1.4.3 Principle of Measurement The load cell only measures force in the direction F . The measurement force may be positive or negative. The load cell is normally installed under the roll bearings. When there is a web/strip in...

  • Page 9: Description

    For all load cells of type PFTL 101 the load cell house is machined from a single block of steel. A sensor is then welded into the load cell house and oriented so that it is sensitive to force in the direction of measurement and insensitive in other directions.

  • Page 10: Technical Data

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 2 Description Connector or fixed connection cable Figure 4. Load cells PFTL 101 B/BE/BER Technical Data Table 1 Technical Data Load Cell PFTL 101 PFTL 101 Type Data Unit Nominal Loads...

  • Page 11: Definitions

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 2 Description B/BE/BER Weight A/AE/AER B/BE/BER Material A/AE/B/BE Stainless steel SIS 2383 DIN 17440 X12CrMoS17 Werkstoffnr 1.4104 AISI 430F AER/BER Acid resistant steel: DIN 17440 X2CrNiMo17 13 2 Werkstoffnr 1.4404...
  • Page 12 Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 2 Description Signal Rated output value at nominal load Sensitivity Force Figure 5. Sensitivity Accuracy and Accuracy Class Accuracy class is defined as the maximum deviation, and is expressed as a percentage of the sen- sitivity at nominal load.
  • Page 13 Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 2 Description Repeatability error Repeatability error is defined as the maximum deviation between repeated readings under identical conditions. It is expressed as a percentage of the sensitivity at nominal load.

  • Page 14: Measuring Principle Of The Sensor

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 2 Description Measuring principle of the sensor The measuring principle of the sensor is based on the Pressductor ® technology and the fact that the permeability of a magnetic material changes under mechanical stress.

  • Page 15: Coordinate System

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 2 Description The load cell has the same sensitivity in both directions, so that the load cell can be installed in the easiest manner. Typical mounting arrangements are horizontal and inclined mounting.

  • Page 16: Inclined Mounting

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 2 Description α = Deflection angle on one side of the roll relative the horizontal plane β = Deflection angle on the other side of the roll relative the horizontal plane +α...

  • Page 17: The Electrical Circuit

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 2 Description When calculating it is important that the angles are set into the equations with the correct signs in relation to the horizontal plane, see Figure 12. Inclined Mounting page -β...

  • Page 18: Installation

    See adapter plates in Drawings. Unpacking When the equipment arrives, check against the delivery document. Inform ABB of any complaint, so that errors can be corrected immediately and delays avoided. 3BSE009965R0401 en Rev E...

  • Page 19: Preparations

    Adapter Plates The adapter plates for all load cell types in the PFTL 101 family must be machined and have a flatness deviation of maximum 0.05 mm, required surface finish should be Ra 3,2. For PFTL 101A the thickness of the adapter plates should be minimum 30 mm, and for PFTL 101B 35 mm, see Figure 15.
  • Page 20 Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 3 Installation CAUTION During this operation it is possible to over load the load cells if the operation is done not careful enough, especially if the roll is heavy. The most critical load cells are naturally the PFTL 101A-0.5 kN and PFTL 101B-2 kN.

  • Page 21: Cabling

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 3 Installation Ø a NOTE Do not drill in this area, as internal wiring may be damaged. Ø a Ø a Ø a Tubular Load cell PFTL 101 Ø dowel pin...
  • Page 22 Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 3 Installation Therefore make sure that the shunting forces become as small as possible for instance by securing the cable against the supporting structure. 3BSE009965R0401 en Rev E...

  • Page 23: Commissioning

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 4 Commissioning Commissioning General The actual procedure for commissioning a load cell is simple, provided that the load cells and cables have been properly installed. Commissioning of the control unit is described in the relevant chapter of the control unit manual.

  • Page 24: Maintenance

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 5 Maintenance Maintenance General Web/strip Tensiometer Systems with Pressductor ® load cells are extremely reliable and do not require daily servicing. As a preventive measure, checks should be done periodically on all parts subject to mechanical wear.
  • Page 25 Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 5 Maintenance Load cell PFTL 101B 3BSE004185R1 Load cell PFTL 101B 3BSE004191R1 Load cell PFTL 101B 10,0 3BSE004197R1 Load cell PFTL 101B 20,0 3BSE004203R1 Load cell PFTL 101BE 3BSE004214R1 Load cell...

  • Page 26: Fault Tracing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 6 Fault Tracing Fault Tracing General It is important to be thoroughly familiar with the description of operation in 2 Description before starting fault tracing. Interchangeability The load cells are factory calibrated and can be replaced directly with another load cell of the same type.

  • Page 27: Fault Tracing In The Mechanical Installation

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 6 Fault Tracing Fault Tracing in the Mechanical Installation There are a number of parts in the mechanical arrangement that can cause faults. The extent to which these faults are repeatable differs. Possible causes fall into the following groups.

  • Page 28: Fault Tracing Of Load Cells, Junction Boxes And Wiring

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual 6 Fault Tracing universal joints. Longitudinal expansion of the drive shaft should also be taken into account. Since such expansion is often taken up by splines, these must also be lubricated. The symptoms are instability of the signal, for instance jumps in the signal during slow running.

  • Page 29: Drawings

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings Drawings 3BSE009965R0401 en Rev E...

  • Page 30: Load Cell Pftl 101A (0,5- 2,0 Kn), Dimension Drawing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings Load Cell PFTL 101A (0,5- 2,0 kN), Dimension Drawing 3BSE009965R0401 en Rev E...

  • Page 31: Load Cell Pftl 101Ae (0,5- 2,0 Kn), Dimension Drawing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings Load Cell PFTL 101AE (0,5- 2,0 kN), Dimension Drawing 3BSE009965R0401 en Rev E...

  • Page 32: Load Cell Pftl 101Aer (0,5- 2,0 Kn), Dimension Drawing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings Load Cell PFTL 101AER (0,5- 2,0 kN), Dimension Drawing 3BSE009965R0401 en Rev E...

  • Page 33: Load Cell Pftl 101B (2,0- 20 Kn), Dimension Drawing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings Load Cell PFTL 101B (2,0- 20 kN), Dimension Drawing 3BSE009965R0401 en Rev E...

  • Page 34: Load Cell Pftl 101Be (2,0- 20 Kn), Dimension Drawing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings Load Cell PFTL 101BE (2,0- 20 kN), Dimension Drawing 3BSE009965R0401 en Rev E...

  • Page 35: Load Cell Pftl 101Ber (2,0- 20 Kn), Dimension Drawing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings Load Cell PFTL 101BER (2,0- 20 kN), Dimension Drawing 3BSE009965R0401 en Rev E...

  • Page 36: Adapter Plate Lower Pftl 101A/Ae/Aer, Dimension Drawing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings Adapter Plate Lower PFTL 101A/AE/AER, Dimension drawing 3BSE009965R0401 en Rev E...

  • Page 37: Adapter Plate Upper Pftl 101A/Ae/Aer, Dimension Drawing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings Adapter Plate Upper PFTL 101A/AE/AER, Dimension drawing 3BSE009965R0401 en Rev E...

  • Page 38: Adapter Plate Lower Pftl 101B/Be/Ber, Dimension Drawing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings Adapter Plate Lower PFTL 101B/BE/BER, Dimension drawing 3BSE009965R0401 en Rev E...

  • Page 39: Adapter Plate Upper Pftl 101B/Be/Ber, Dimension Drawing

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Appendix A Drawings A.10 Adapter Plate Upper PFTL 101B/BE/BER, Dimension drawing 3BSE009965R0401 en Rev E...

  • Page 40: Alphabetical Index

    Pressductor PillowBlock Load Cells, Horizontal Measuring PFTL 101, User Manual Alphabetical index Alphabetical index accuracy and accuracy class ........... 12 compensated temperature range ........13 hysteresis ................ 12 linearity deviation ............. 12 nominal load ..............11 repeatability error ............. 13 sensitivity .................
  • Page 42 — ABB AB Industrial Automation Measurement & Analytics Force Measurement SE-721 59 Västerås Sweden Tel: +46 21 32 50 00 Internet: www.abb.com/webtension...

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