Siemens SIWAREX WL230 Operating Instructions Manual
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Siemens SIWAREX WL230 Operating Instructions Manual

Base plate and elastomer bearing bb-s sa
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SIWAREX WL230
Base plate and elastomer bearing
BB-S SA
Operating Instructions
7MH4133-3DE11 (10 to 200 kg)
7MH5706-0PC00 (350 to 500 kg)
03/2020
A5E47358100-AA
Introduction
Description
Application planning
Installation
Service and maintenance
Technical specifications
Dimension drawings
Ordering data
Product documentation and
support
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Summary of Contents for Siemens SIWAREX WL230

  • Page 1 Introduction Description Application planning SIWAREX WL230 Installation Base plate and elastomer bearing BB-S SA Service and maintenance Technical specifications Operating Instructions Dimension drawings Ordering data Product documentation and support 7MH4133-3DE11 (10 to 200 kg) 7MH5706-0PC00 (350 to 500 kg) 03/2020...
  • Page 2 Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.

  • Page 3: Table Of Contents

    Table of contents Introduction..............................5 Purpose of this documentation....................5 Document history ........................5 Checking the consignment.......................6 Product package for base plate ....................6 Scope of delivery for elastomer bearing 350 to 500 kg............7 Scope of delivery for elastomer bearing 10 to 200 kg..............7 Security information .........................8 Notes on warranty ........................8 Description..............................9...
  • Page 4 Table of contents 4.2.9 Checking the installation ......................26 4.2.10 Installing the grounding cable ....................26 Dismantling ..........................27 Service and maintenance ...........................29 Servicing and maintenance....................29 Care and maintenance of elastomer components ..............30 Technical specifications..........................33 Dimension drawings ...........................35 Dimension drawing of base plate and elastomer bearing ............35 Dimension drawing of grounding cable ..................36 Ordering data..............................39 Accessories..........................39...

  • Page 5: Introduction

    See also Operating instructions SIWAREX WL200 load cells (https:// support.industry.siemens.com/cs/ww/en/view/109749190) Document history The most important changes in the documentation when compared with the respective previous edition are given in the following table. Manual edition...

  • Page 6: Checking The Consignment

    Introduction 1.4 Product package for base plate Checking the consignment 1. Check the packaging and the delivered items for visible damages. 2. Report any claims for damages immediately to the shipping company. 3. Retain damaged parts for clarification. 4. Check the scope of delivery by comparing your order to the shipping documents for correctness and completeness.

  • Page 7: Scope Of Delivery For Elastomer Bearing 350 To 500 Kg

    Introduction 1.6 Scope of delivery for elastomer bearing 10 to 200 kg Scope of delivery for elastomer bearing 350 to 500 kg ① Elastomer bearing ② Hexagon screw Scope of delivery for elastomer bearing 10 to 200 kg ① Elastomer bearing ②...

  • Page 8: Security Information

    The content reflects the technical status at the time of publishing. Siemens reserves the right to make technical changes in the course of further development.

  • Page 9: Description

    2.1.1 Base plate and elastomer bearing The self-centering elastomer bearing for SIWAREX WL230 BB-S SA load cells is particularly suitable for installation in roller table, platform and vessel weighing machines. The elastomer bearing is firmly connected to the load cell and the load carrier. This provides a lift-off protection to a limited extent.

  • Page 10: Design Of The Grounding Cable

    Description 2.3 Functionality of elastomer bearing unit and grounding cable ① Elastomer bearing ② Hexagon screw, optionally with washer, see scope of delivery ③ Overload protection with nut ④ Base plate ⑤ Spacing strip ⑥ Load cell, not included in scope of delivery ⑦...
  • Page 11 Description 2.3 Functionality of elastomer bearing unit and grounding cable Grounding cable The grounding cable represents an electrical bypass via the load cell and elastomer bearing unit. High weld currents can destroy the load cell and the electronics. The electronics can be affected by voltage sparkovers of static discharges.
  • Page 12 Description 2.3 Functionality of elastomer bearing unit and grounding cable BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...

  • Page 13: Application Planning

    Application planning Load cell dummies Principle of operation Load cells are sensitive sensors. To protect the load cells from becoming damaged during installation and transport, install the load cells only at the last minute. Replace the load cells during installation and transport with placeholders, so-called dummies or phantoms. Dummies might be designed as follows: ●...

  • Page 14: Load Pick-Up

    Application planning 3.3 Load pick-up Load pick-up Mounting surfaces The following requirements apply to the installation areas: ● The positional and angular deviations of the mounting areas to each other correspond to the general tolerances for welded constructions in EN ISO 13920. ●...

  • Page 15: Overload Protection

    Application planning 3.4 Overload protection Overload protection NOTICE Irreparable faults and damage to the load cells If load cells are used beyond the maximum working load or the maximum transverse load, this can cause irreparable faults and even fracturing of the load cell or the compact mounting unit. ●...

  • Page 16: Guide Elements

    Application planning 3.5 Guide elements Guide elements Use the guide elements in the following cases: ● A weight should be determined under the influence of transverse forces. ● Horizontal movement of the load bearing implement should be prevented. A change in the distance between the support points, for example, as a result of expansion of the load bearing implement due to heat, must not lead to mutual tensioning of the guide elements.

  • Page 17: Grounding Cable

    Application planning 3.6 Grounding cable Three guide elements are sufficient to statically fix a weighing platform or container. Note Weighing errors With four guide elements, there is a risk of the guide elements mutually tensioning, which in turn induces weighing errors. If you nevertheless want to use four guide elements, the guide elements must be installed with a sufficient amount of play.
  • Page 18 Application planning 3.6 Grounding cable BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...

  • Page 19: Installation

    The load cell can be damaged when being handled improperly. Load cells are precision components. ● Observe the operating instructions for the load cell. SIWAREX WL200 Operating instructions (https://support.industry.siemens.com/cs/ww/en/view/109749190) ● Do not drop the load cell. ● Protect the load cells from shocks.
  • Page 20 Installation 4.1 Safety instructions NOTICE Incorrect assembly of the load cell Damaging of load cells, installation parts or load bearing implement With load cells of smaller rated loads, there is a risk of stretching the load cell bodies when attaching force transfer devices, e.g. when tightening locknuts. Torsional and bending moments, eccentric loads and transverse loads are disturbance variables.

  • Page 21: Installing The Base Plate And Elastomer Bearing

    Installation 4.2 Installing the base plate and elastomer bearing Installing the base plate and elastomer bearing 4.2.1 General installation information The installation conditions vary widely. The dead load of the load bearing implement can be very low or relatively high. You might be dealing with a container, platform or a roller table. The following installation instructions therefore only describe the general procedures.

  • Page 22: Preparing The Load Cell

    1. Keep the data sheet with the calibration values of the load cell. 2. Unpack the load cell. 3. Read the accompanying information sheet. 4. Read the operating instructions of load cell. SIWAREX WL200 Operating instructions (https://support.industry.siemens.com/cs/ww/en/view/109749190) 4.2.4 Preparing the base plate and elastomer bearing Procedure 1.

  • Page 23: Install The Load Cell With Elastomer Bearing Unit

    Installation 4.2 Installing the base plate and elastomer bearing Figure 4-1 Install the elastomer bearing in the load cell ① ② 1. Place the elastomer bearing over the load cell support 2. Hold the elastomer bearing. Holding the elastomer bearing prevents damage to the load cell. ③...
  • Page 24 Installation 4.2 Installing the base plate and elastomer bearing Procedure 1. Adapt the procedure to the installation conditions. 2. Insert the elastomer bearing unit. 3. Screw the base plate to the lower mounting plate. 4. Align the elastomer bearing with the upper mounting plate. 5.

  • Page 25: Set Overload Protection

    Installation 4.2 Installing the base plate and elastomer bearing 4.2.7 Set overload protection Procedure 1. Load the load bearing implements with the maximum occurring load. ① 2. Set the overload protection with the nut to 0.05 to 0.1 mm ① The dimension 0.05 to 0.1 mm must remain the same even after locking the nut.

  • Page 26: Checking The Installation

    Installation 4.2 Installing the base plate and elastomer bearing Procedure 1. Determine which load cell has the lowest load. – Connect load cells in the junction box. – Disconnect the load cell cables SIG+ and SIG-. – Connect a supply voltage to the load cells via a SIWAREX weighing module. –...

  • Page 27: Dismantling

    Installation 4.3 Dismantling Dismantling For dismantling the load cells, the same safety rules (Page 19) apply as for installation. 1. Disconnect all the supply voltages and auxiliary voltages. 2. Secure the load carrier against falling. 3. Use appropriate hoisting gear and tools. 4.
  • Page 28 Installation 4.3 Dismantling BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...

  • Page 29: Service And Maintenance

    Service and maintenance Servicing and maintenance Important notes on cleaning NOTICE Damage to load cells, measurement errors ● Dirt must not be allowed to accumulate in the vicinity of a load cell. ● Do not subject cable glands and seals directly to the jet of a pressure washer. ●...

  • Page 30: Care And Maintenance Of Elastomer Components

    Service and maintenance 5.2 Care and maintenance of elastomer components Care and maintenance of elastomer components General information The physical properties of most rubber products change under poor storage conditions or with improper treatment. The following examples of changes, however, can make them unusable: ●...
  • Page 31 Service and maintenance 5.2 Care and maintenance of elastomer components Cleaning The following applies to cleaning: ● We recommend the use of a pH-neutral detergent. Do not use cleaning agents containing non-polar solvents (e.g., gasoline)! ● Rinse the components with water after cleaning, if needed. ●...
  • Page 32 Service and maintenance 5.2 Care and maintenance of elastomer components BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...

  • Page 33: Technical Specifications

    Technical specifications Rated load 10 kg 20 kg 50 kg 100 kg 200 kg 350 kg 500 kg Maximum permitted lateral ±4 mm deflection Vertical stiffness 0.89 kN/mm 3.8 kN/mm Horizontal stiffness 0.16 kN/mm 0.1 kN/mm Deflection at rated load 0.10 mm 0.20 mm 0.50 mm 1.10 mm...
  • Page 34 Technical specifications BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...

  • Page 35: Dimension Drawings

    Dimension drawings Dimension drawing of base plate and elastomer bearing The following dimension drawing shows the base plates and the SIWAREX WL230 BB-S SA elastomer bearing. Figure 7-1 Dimension drawing of base plate and elastomer bearing unit 350 to 500 kg, dimensions in...

  • Page 36: Dimension Drawing Of Grounding Cable

    Dimension drawings 7.2 Dimension drawing of grounding cable Ø50 Ø8,5 (4x) Figure 7-2 Dimension drawing base plate and elastomer bearing unit 10 to 200 kg, dimensions in mm Dimension drawing of grounding cable BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...
  • Page 37 Dimension drawings 7.2 Dimension drawing of grounding cable Figure 7-3 Dimension drawing of grounding cable, dimensions in mm BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...
  • Page 38 Dimension drawings 7.2 Dimension drawing of grounding cable BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...

  • Page 39: Ordering Data

    Ordering data Accessories You can order accessories online: Industry Mall (https://mallstage.industry.siemens.com/mall/ en/b0/Catalog/Products/10022810?tree=CatalogTree) ● Grounding cable BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...
  • Page 40 Ordering data 8.1 Accessories BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...

  • Page 41: Product Documentation And Support

    Additional information on our technical support can be found at Technical Support (http:// www.siemens.com/automation/csi/service). Service & support on the Internet In addition to our technical support, Siemens offers comprehensive online services at Service & Support (http://www.siemens.com/automation/serviceandsupport). BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...
  • Page 42 Product documentation and support A.2 Technical support Contact If you have further questions about the device, contact your local Siemens representative at Personal Contact (http://www.automation.siemens.com/partner). To find the contact for your product, go to "all products and branches" and select "Products &...

  • Page 43: Index

    Index Dimension drawing, 37 Installing, 26 Servicing and maintenance, 29 Guide element, 16 Application, 9 History, 5 Catalog Hotline, (Refer to Support request) Technical data sheets, 41 Certificates, 41 Cleaning, 29 Customer Support, (Refer to Technical support) Installation, 24 Elastomer bearing unit, 24 Installing the grounding cable, 26 Design Elastomer bearing unit, 9...
  • Page 44 Index Warranty, 8 BB-S SA Operating Instructions, 03/2020, A5E47358100-AA...

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