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Siemens SIWAREX WL280 Operating Instructions Manual
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Siemens SIWAREX WL280 Operating Instructions Manual

Siemens SIWAREX WL280 Operating Instructions Manual

Compact installation units and guide elements rn-s sa
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SIWAREX WL280
Compact installation units and
guide elements
RN-S SA
Operating Instructions
09/2016
A5E32605810A-03
___________________
Introduction
Notes on handling the
___________________
product
___________________
Description
___________________
Application planning
___________________
Mounting
___________________
Service and maintenance
___________________
Technical data
___________________
Dimension drawings
___________________
Ordering data
___________________
Appendix
1
2
3
4
5
6
7
8
9
A

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Summary of Contents for Siemens SIWAREX WL280

  • Page 1 ___________________ Introduction Notes on handling the ___________________ product ___________________ SIWAREX WL280 Description ___________________ Application planning Compact installation units and guide elements ___________________ RN-S SA Mounting ___________________ Service and maintenance Operating Instructions ___________________ Technical data ___________________ Dimension drawings ___________________ Ordering data...
  • 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 History ............................5 Scope of delivery ........................5 1.3.1 Compact installation unit ......................6 1.3.2 Guide element ........................... 6 Security information ........................7 Environmental protection ......................7 Notes on handling the product ......................... 9 Description ............................
  • Page 4 Table of contents 5.2.8 Checking the installation ......................38 Fixing of guide element ......................39 5.3.1 General installation information ..................... 39 5.3.2 Preparing the guide element ....................40 5.3.3 Locking the top plate ......................40 5.3.4 Fixing a guide element (or the first one) ................41 5.3.5 Lowering the top plate onto the load cells ................

  • Page 5: Introduction

    Introduction Purpose of this documentation These instructions contain all the information you need for commissioning and using the device. It is aimed at persons who install the device mechanically and commission it, as well as at service and maintenance engineers. History The following versions of this documentation have been released to date.

  • Page 6: Compact Installation Unit

    Introduction 1.4 Security information 1.3.1 Compact installation unit Compact installation unit Accessory kit 1 ● 1 x pressure piece complete with flat seal ● 1 x pendulum support Accessory kit 2 ● 8 x washers Note Other scope of delivery information Drawings of the parts of the compact installation unit can be found in Section Preparing the compact installation unit (Page 30) 1.3.2...

  • Page 7: Security Information

    In order to protect plants, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial security concept. Siemens’ products and solutions only form one element of such a concept. Customer is responsible to prevent unauthorized access to its plants, systems, machines and networks.
  • Page 8 Introduction 1.5 Environmental protection RN-S SA Operating Instructions, 09/2016, A5E32605810A-03...

  • Page 9: Notes On Handling The Product

    All obligations on the part of Siemens AG are contained in the respective sales contract, which also contains the complete and solely applicable liability provisions. The provisions defined in the sales contract for the responsibility for defects are neither extended nor limited by the remarks in this document.
  • Page 10 EC directive 94/9 EC (ATEX). Trademarks SIWAREX ® is a registered trademark of Siemens AG. All other names appearing in these instructions may be trademarks; use of such names by third parties for their own purposes may infringe upon owners rights.

  • Page 11: Description

    Description Application 3.1.1 Use of compact installation units The compact installation unit handles the introduction of force into the load cells by means of a pendulum support. This pendulum support has the following effect: ● The weight force is introduced centrally into the load cell. ●...

  • Page 12: Lifting Protection

    ● Parts made of stainless steel for applications in the food and pharmaceutical industries Compact installation unit for SIWAREX WL280 RN-S SA The type SIWAREX WL280 RN-S SA self-centering compact installation unit for load cells is especially well suited for installation in container scales, platform scales and roller table scales.

  • Page 13: Use Of The Grounding Cable

    This is the case with braking or acceleration forces of belt or roller table scales or with mixing tanks in which unbalance can occur as a result of an agitator. The SIWAREX WL280 RN-S SA guide elements are used together with the compact installation units. The guide elements have the following characteristics: ●...

  • Page 14: Design And Function

    Description 3.2 Design and function changes in temperature. This can principally be achieved by always using three guide elements. Design and function 3.2.1 Design and mode of operation of the compact installation unit Design The compact installation unit comprises the following main components: ①...
  • Page 15 Description 3.2 Design and function ① ⑧ Base plate Clamping washers ② ⑨ Top plate Hexagon-head bolts ③ ⑩ Pressure piece with flat seal Countersunk head screws ④ ⑪ Pendulum support Centering washers ⑤ ⑫ Load cell (not included in scope of deliv- Hexagon nut ery) ⑥...
  • Page 16 Description 3.2 Design and function When delivered, the height of the top plate is set with an excess length. The excess length corresponds to the lifting path (see Stainless steel compact installation units (Page 47)). In this condition, the compact installation unit serves as an installation aid and can be used as a dummy for lighter installation work.
  • Page 17 Description 3.2 Design and function In the next step, lower the load bearing by loosening the top hexagon nuts. The top plate is lowered onto the pendulum support. The weight is now on the load cells. NOTICE Loosening the hexagon nuts Loosen the hexagon nuts in turn in small steps.

  • Page 18: Design And Function Of The Grounding Cable

    Description 3.2 Design and function 3.2.2 Design and function of the grounding cable Structure The grounding cables in the compact installation units are made up of fine-core flexible copper wires. The flexible copper wires are tin-coated to additionally protect the copper from corrosion.

  • Page 19: Design And Principle Of Operation Of The Guide Element

    Description 3.2 Design and function 3.2.3 Design and principle of operation of the guide element Structure The main components of a guide element are: 1. Turnbuckle with two pivot heads 2. 2 x flanges The flanges are screwed onto the sides of the top and base plates. One or two guide elements can be mounted on a compact installation unit.
  • Page 20 Description 3.2 Design and function RN-S SA Operating Instructions, 09/2016, A5E32605810A-03...

  • Page 21: Application Planning

    ● A copy of the installation unit by means of a welded construction for coarse installation work ● Use of a SIWAREX WL280 compact installation unit for light installation work A copy of the installation unit by means of a welded construction A piece of pipe or some other steel profile is welded between two plates with the hole pattern for the fixing screws.

  • Page 22: Load Pick-Up

    Application planning 4.3 Load pick-up Figure 4-1 Proposed solution for lifting protection Load pick-up Mounting surfaces For the mounting areas of the installation units, the following requirements apply: ● The positional and angular deviations of the mounting areas to each other should correspond to the general tolerances for welded constructions in EN ISO 13920.

  • Page 23: Overload Protection

    Application planning 4.4 Overload protection Height compensation of the support points With this method, the output signals of all of the load cells are attuned to each other under a load. To ensure that all of the load cells receive approximately the same load, spacer plates are used to compensate the heights.
  • Page 24 Application planning 4.4 Overload protection If the transverse force is so great that it exceeds the restoring force of the pendulum bolt (and thus the deflection limit), then corresponding protective measures are required. Pendulum limiters or guide elements are suitable for this, for example. Pendulum limiters must be constructed or set in such a way that the maximum deflection cannot be exceeded in any direction.

  • Page 25: Guide Elements

    Application planning 4.5 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 26: Protection Against Explosion

    Application planning 4.6 Protection against explosion To ensure that no force components occur in the measuring direction, you must install guide elements at precise right angles to the effective direction of the load cells. 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...

  • Page 27: Mounting

    Mounting Safety information/instructions Load cells are precision components and must therefore be handled carefully. Particular care must be taken during transport and installation. DANGER Danger to life from falling loads • Load cells are not machine components which have been constructed with the normal safety factors.

  • Page 28: Installing The Compact Installation Unit

    Mounting 5.2 Installing the compact installation unit NOTICE Damage to load cells through incorrect mounting • Provide indented claws or crane eyebolts on the load carrier to ensure that hoisting gear can be used safely. • Load cells must never be overloaded. Put the load carrier down slowly for this reason. With load cells of smaller rated loads in particular, there is a risk of stretching the load cell bodies when attaching force transfer devices, e.g.

  • Page 29: Preparing The Load Cell

    Mounting 5.2 Installing the compact installation unit Depending on the installation conditions, the detailed procedure may deviate from the following description. The following actions are required in order to install the compact installation unit. 1. Preparing the load cell 2. Preparing the compact installation unit 3.

  • Page 30: Preparing The Compact Installation Unit

    Mounting 5.2 Installing the compact installation unit 5.2.3 Preparing the compact installation unit Figure 5-2 Compact installation unit - scope of delivery 1. Read the operating instructions. 2. Unpack the compact installation unit. 3. Check the scope of delivery: ① –...

  • Page 31: Installing The Load Cell In The Compact Installation Unit

    Mounting 5.2 Installing the compact installation unit 5.2.4 Installing the load cell in the compact installation unit DANGER Death or serious bodily injury A falling load bearing implement can lead to considerable material damage, serious injury or death, depending on the potential risk. NOTICE Damaging of load cells Incorrect or incomplete installation can result in damage to the load cells, installed parts...
  • Page 32 Mounting 5.2 Installing the compact installation unit 5. Remove the pressure piece with the flat seal from accessory kit 1. 6. Place the pressure piece with the flat seal onto the pendulum support. Installing the load cell ① 1. Insert the load cell complete with pendulum support and pressure piece into the compact installation unit.

  • Page 33: Installing The Compact Installation Unit

    Mounting 5.2 Installing the compact installation unit Excess length = lifting path Figure 5-6 Installation state 5.2.5 Installing the compact installation unit NOTICE Personal injuries, damage to the load cells Insufficiently secured loads can fall and cause injuries or material damage. Therefore, appropriate lifting tools must be used to lift the load bearing implement.
  • Page 34 Mounting 5.2 Installing the compact installation unit ① Distance between top plate and pendulum support ② Countersunk head screw ③ Base plate Figure 5-7 Installing the compact installation unit 1. Remove the bolted connections of the load cell dummies. 2. The load bearing implement only has to be raised a few millimeters from bracket to bracket in order to replace the dummies with the compact installation units.
  • Page 35 Mounting 5.2 Installing the compact installation unit 8. With more than three support points: – Check whether all bracket plates are in contact with the top plates. – Eliminate any differences in height and unevenness of the associated bracket by inserting compensation plates (see Table 9-3 Ordering data of compensation plates (Page 54)).

  • Page 36: Lowering The Top Plate Onto The Load Cells

    Mounting 5.2 Installing the compact installation unit ● The compact installation units act as dummies. ● The compact installation units provide protection during transport. In this state, simple installation and transport work can be carried out compared to the rated load.

  • Page 37: Compensation Of Height With Four Or More Support Points

    Mounting 5.2 Installing the compact installation unit 5.2.7 Compensation of height with four or more support points Check during the installation whether compensation of the height on the brackets is necessary and meaningful. Compensation of the height is not meaningful if the load bearing implement and/or the foundation are elastic.

  • Page 38: Checking The Installation

    Mounting 5.2 Installing the compact installation unit 5.2.8 Checking the installation DANGER Personal injury and damage to property Incorrectly set countersunk head screws lead to erroneous measurements due to blocking and can lead to the scale overflowing. Personal injury and material damage may occur. NOTICE Destruction of the load cells and the installation unit Check that the load cells and installation unit are installed correctly, e.g.

  • Page 39: Fixing Of Guide Element

    Mounting 5.3 Fixing of guide element Fixing of guide element 5.3.1 General installation information Observe the information on installation of the compact installation units (see General installation information (Page 28) ff.). The guide elements are prepared for flanging onto the compact installation units.

  • Page 40: Preparing The Guide Element

    Mounting 5.3 Fixing of guide element 5.3.2 Preparing the guide element Figure 5-10 Guide element - scope of delivery 1. Read the operating instructions. 2. Unpack the guide element. 3. Check the scope of delivery: ① – 1 x turnbuckle, set to distance ②...

  • Page 41: Fixing A Guide Element (Or The First One)

    Mounting 5.3 Fixing of guide element 5.3.4 Fixing a guide element (or the first one) 1. Position the bottom flange with 2 or 3 cylinder head screws. 2. Position the top flange with 2 or 3 cylinder head screws. 3. Position the turnbuckle. 4.

  • Page 42: Fixing Of Second Guide Element

    Mounting 5.3 Fixing of guide element ③ 1. Loosen the top nuts in several cycles and slowly lower the load bearing implement. NOTICE Loosening the hexagon nuts Only loosen the hexagon nuts in turn in very small steps. During the process, note which hexagon nut is loaded and which is not.

  • Page 43: Dismantling

    Mounting 5.4 Dismantling Dismantling For the disassembly of load cells, the same safety rules and requirements apply as for installation and assembly. 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 44 Mounting 5.4 Dismantling RN-S SA Operating Instructions, 09/2016, A5E32605810A-03...

  • Page 45: 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, sealing elements and flat seals directly to the jet from a high- pressure hose.
  • Page 46 Service and maintenance 6.1 Servicing and maintenance Overload protection DANGER Personal injury and damage to property Dirty, frozen or incorrectly adjusted overload protection elements lead to erroneous measurements due to blockage or to an overflow of the scale. Personal injury and material damage may occur.

  • Page 47: Technical Data

    Technical data Stainless steel compact installation units Table 7- 1 Technical specifications of the stainless steel compact installation units Size Value at rated load 60 kg to 280 kg 0.5 t / 1 t 2 t to 5 t 10 t / 13 t Max.
  • Page 48 Technical data 7.2 Stainless steel guide elements RN-S SA Operating Instructions, 09/2016, A5E32605810A-03...

  • Page 49: Dimension Drawings

    Dimension drawings Dimension drawings of the compact installation units The following dimension drawings show the compact installation units for the various versions of the RN-S SA compact installation unit. All dimensions are in millimeters. Two dimension drawings are specified for each installation unit: ●...
  • Page 50 Dimension drawings 8.1 Dimension drawings of the compact installation units RN-S SA 60 kg to 13 t installation state Figure 8-1 Dimension drawing of RN-S SA compact installation unit 60 kg to 13 t in installation state 60 kg to 280 kg 0.5 t / 1 t 2 t to 5 t 10 t / 13 t...
  • Page 51 Dimension drawings 8.1 Dimension drawings of the compact installation units RN-S SA 60 kg to 13 t operating state Figure 8-2 Dimension drawing of RN-S SA compact installation unit 60 kg to 13 t in operating state 60 kg to 280 kg 0.5 t / 1 t 2 t to 5 t 10 t / 13 t...

  • Page 52: Dimension Drawing Of Guide Elements

    Dimension drawings 8.2 Dimension drawing of guide elements Dimension drawing of guide elements Figure 8-3 Dimension drawing of guide element RN-S SA 60 kg to 13 t 60 kg to 280 kg 0.5 t / 1 t 2 t to 5 t 10 t / 13 t 127.2 ≈...

  • Page 53: Ordering Data

    Ordering data Stainless steel compact installation unit Table 9- 1 Ordering data of compact installation units Compact installation unit Designation Rated load Order No., stainless steel RN-S SA 60 kg to 280 kg 7MH5713-3JA00 RN-S SA 0.5 t / 1 t 7MH5713-4AA00 RN-S SA 2 t to 5 t...
  • Page 54 Ordering data Compensation plates (accessory) Purpose: ● Compensation of warpage and skew on brackets ● Compensation of height on the brackets with four or more load cells Table 9- 3 Ordering data of compensation plates Set of compensation plates Designation Rated load Description Order No., stain-...

  • Page 55: Appendix

    In addition to our documentation, Siemens provides a comprehensive support solution at: ● Service&Support (http://www.siemens.com/automation/service&support) Personal contact If you have additional questions about the device, please contact your Siemens personal contact at: ● Partner (http://www.automation.siemens.com/partner) In order to find the contact for your product, select under 'All Products and Branches' the path 'Automation Technology >...
  • Page 56 Appendix A.1 Technical support RN-S SA Operating Instructions, 09/2016, A5E32605810A-03...

  • Page 57: Index

    Index Application, 11 Installation Installing the compact installation unit, 33 Installing the load cell, 31 Lowering the top plate, 36, 41 Overview, 29 Cleaning, 45 Preparing the compact installation unit, 30 Compact installation unit Preparing the guide element, 40 Application, 11 Preparing the load cell, 29 Design, 14 Internet, 55...
  • Page 58 Index Recycling, 7 Scope of delivery Compact installation unit, 6 Guide element, 6 with figures, 30, 40 Service, 55 Structure Grounding cable, 18, 18 Guide element, 19 Support, 55 Support point, 22 Technical specifications Stainless steel compact installation unit, 47 Stainless steel guide elements, 47 RN-S SA Operating Instructions, 09/2016, A5E32605810A-03...

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