Siemens SIWAREX WL280 Operating Instructions Manual
Pressure piece sets rn-s sa
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RN-S SA
SIWAREX WL280
Pressure piece sets
RN-S SA
Operating Instructions
09/2013
A5E32962759A-01
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Introduction
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Notes on handling the
product
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Description
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Application planning
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Installation
___________________
Servicing and maintenance
___________________
Technical data
___________________
Dimension drawings
___________________
Ordering data
___________________
Appendix
1
2
3
4
5
6
7
8
9
A
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Table of Contents
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Summary of Contents for Siemens SIWAREX WL280
- Page 1 ___________________ RN-S SA Introduction ___________________ Notes on handling the product ___________________ Description SIWAREX WL280 ___________________ Application planning Pressure piece sets ___________________ RN-S SA Installation ___________________ Servicing 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.
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Page 3: Table Of Contents
Table of contents Introduction ............................. 5 Purpose of this documentation ...................... 5 History ............................5 Scope of delivery..........................5 Environmental protection ....................... 6 Notes on handling the product ......................... 7 Description .............................. 9 Application ............................9 3.1.1 Use of the pressure piece set ......................9 3.1.2 Lifting protection ........................... - Page 4 Table of contents Servicing and maintenance ........................29 Technical data ............................31 Dimension drawings ..........................33 Dimension drawing of the pressure piece set ................33 Dimension drawing of the grounding cable ................. 35 Ordering data ............................37 Appendix .............................. 39 Technical support ........................
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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: Environmental Protection
Introduction 1.4 Environmental protection Environmental protection Recycling Devices described in this programming manual can be recycled owing to the low content of noxious substances in their version. Please contact a certified waste disposal company for eco-friendly recycling and to dispose of your old devices. -
Page 7: 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 8 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.
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Page 9: Description
● Has a self-centering effect on the load bearing implement Pressure piece sets for SIWAREX WL280 RN-S SA The self-centering pressure piece sets for SIWAREX WL280 RN-S SA load cells are especially well suited for installation in vehicle scales, platform weighing machines, and container weighers. -
Page 10: Lifting Protection
Description 3.1 Application 3.1.2 Lifting protection The lifting protection prevents the load bearing implements from being lifted off of the load cells. If there is a risk of the load bearing implement being lifted or toppled, then lifting protection is required. -
Page 11: Design And Function
Description 3.2 Design and function Design and function 3.2.1 Design and function of a pressure piece set Design A pressure piece set is made up of the following components: ① ● Pressure piece ② ● Pendulum support Together with the load cell, the pressure piece set represents a self-centering bearing unit. ①... -
Page 12: Design And Function Of The Grounding Cable
Description 3.2 Design and function Principle of operation The pressure pieces with pendulum support ensure the lateral guidance of the load cells and, together with the load cell, form a self-centering unit. Figure 3-4 Sectional view 3.2.2 Design and function of the grounding cable Design The grounding cable consists of a fine-gauge copper wire with a cross-section of 50 mm and two lugs, Ø... -
Page 13: Application Planning
Dummies might be designed as follows: ● A copy of the installation unit by means of a welded construction for installation work ● Use of a SIWAREX WL280 compact installation unit 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 14: Load Pick-Up
Application planning 4.3 Load pick-up Load pick-up Mounting surfaces For the mounting surfaces of the pressure piece set, the following requirements apply: ● The positional and angular deviations of the mounting surfaces to each other should correspond to the general tolerances for welded constructions in EN ISO 13920. ●... -
Page 15: Overload Protection
Application planning 4.4 Overload protection Overload protection NOTICE Irreparable faults and damage to the load cells When using load cells with small rated loads, always provide overload protection in order to protect the cells from becoming damaged. This applies both to the measuring direction and the transverse direction. -
Page 16: 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 17 Application planning 4.5 Guide elements 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...
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Page 18: Protection Against Explosion
Application planning 4.6 Protection against explosion Protection against explosion Protection against explosion There is no potential risk of ignition from the pressure piece sets of the load cells. Therefore the pressure piece sets are not subject to EC directive 94/9 EC (ATEX). RN-S SA Operating Instructions, 09/2013, A5E32962759A-01... -
Page 19: Installation
Installation Safety information/instructions Load cells are precision components and must therefore be handled carefully. Particular care must be taken during transport and installation. WARNING Danger to life from falling loads • Load cells are not machine components which have been constructed with the normal safety factors. - Page 20 Installation 5.1 Safety information/instructions NOTICE Damage to load cells through incorrect mounting • Provide indented claws or crane eyebolts on the load bearing implement to ensure that hoisting gear can be used safely. • Load cells must never be overloaded. Put the load bearing implement down slowly for this reason.
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Page 21: Mounting The Pressure Piece Set
Installation 5.2 Mounting the pressure piece set Mounting the pressure piece set 5.2.1 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 conveyor. -
Page 22: Preparing The Load Cell
Installation 5.2 Mounting the pressure piece set 5.2.3 Preparing the load cell NOTICE Damage to the load cell Observe the operating instructions for the load cell. When mounting the load cell, ensure that you do not damage or cut the cables of the load cell. -
Page 23: Preparing The Pressure Piece Set
Installation 5.2 Mounting the pressure piece set 5.2.4 Preparing the pressure piece set ① Pressure piece ② Pendulum support Figure 5-2 Scope of delivery 1. Unpack the pressure piece set. 2. Read the accompanying information sheet. 3. Check the delivered unit. See also Scope of delivery (Page 5) RN-S SA... -
Page 24: Bonding The Pressure Piece
Installation 5.2 Mounting the pressure piece set 5.2.5 Bonding the pressure piece Procedure ① Top plate ② Pressure piece ③ Application of adhesive in the countersink of the top plate Figure 5-3 Bonding the pressure piece ● Bond the pressure piece to the countersink of the top plate using any suitable adhesive. The bonded joint secures the pressure piece against falling out. -
Page 25: Installing The Load Cell With Pendulum Support
Installation 5.2 Mounting the pressure piece set 5.2.6 Installing the load cell with pendulum support WARNING 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 26: Figure 5-4 Inserting Load Cells
Installation 5.2 Mounting the pressure piece set Procedure NOTICE Personal injuries, damage to the load cells Insufficiently secured loads can fall and cause injuries or material damage. Therefore, use suitable hoisting equipment to lift the load bearing implement. Observe the appropriate safety regulations. -
Page 27: Checking The Installation
Installation 5.2 Mounting the pressure piece set 5.2.7 Checking the installation Procedure NOTICE Destruction of the load cell and the pressure piece set Check that the load cell and pressure piece set are installed correctly, e.g. by checking the mounting dimensions and oscillation distances. Incorrect assembly can lead to the destruction of the load cell and the pressure piece set. -
Page 28: Installing The Grounding Cable
Installation 5.3 Installing the grounding cable Installing the grounding cable 1. Prepare a permanently contacting bolted connection such as M10 on the load bearing implement and foundation for securing the grounding cable. 2. Screw the grounding cable tight. Dismantling For the disassembly of load cells, the same safety rules and requirements apply as for installation and assembly. -
Page 29: Servicing And Maintenance
Servicing 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 30 Servicing and maintenance RN-S SA Operating Instructions, 09/2013, A5E32962759A-01...
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Page 31: Technical Data
Technical data Table 7- 1 Technical specifications of the pressure piece sets Variable Value at rated load 60 kg to 280 kg 0.5 t / 1 t Maximum lateral deflection ± 4 mm ± 4 mm Restoring force per millimeter of lateral deflection 5.6% per mm 3.7% per mm of top plate... - Page 32 Technical data RN-S SA Operating Instructions, 09/2013, A5E32962759A-01...
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Page 33: Dimension Drawings
Dimension drawings Dimension drawing of the pressure piece set The following dimension drawings show the connection dimensions of the SIWAREX WL280 RN-S SA pressure piece sets. All dimensions are in millimeters. Figure 8-1 Dimension drawing: RN-S SA 60 kg to 280 kg pressure piece set RN-S SA Operating Instructions, 09/2013, A5E32962759A-01... -
Page 34: Figure 8-2 Dimension Drawing: Rn-S Sa 0.5 T / 1.0 T Pressure Piece Set
Dimension drawings 8.1 Dimension drawing of the pressure piece set Figure 8-2 Dimension drawing: RN-S SA 0.5 t / 1.0 t pressure piece set RN-S SA Operating Instructions, 09/2013, A5E32962759A-01... -
Page 35: Dimension Drawing Of The Grounding Cable
Dimension drawings 8.2 Dimension drawing of the grounding cable Dimension drawing of the grounding cable Figure 8-3 Dimension drawing of the grounding cable RN-S SA Operating Instructions, 09/2013, A5E32962759A-01... - Page 36 Dimension drawings 8.2 Dimension drawing of the grounding cable RN-S SA Operating Instructions, 09/2013, A5E32962759A-01...
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Page 37: Ordering Data
Ordering data Table 9- 1 Ordering data of pressure piece sets Pressure piece set Designation Rated load Order number RN-S SA 60 kg to 280 kg 7MH5713-3JD00 RN-S SA 0.5 t / 1.0 t 7MH5713-4AD00 The load cells are not included. Table 9- 2 Ordering information for grounding cable Highly flexible grounding cable... - Page 38 Ordering data RN-S SA Operating Instructions, 09/2013, A5E32962759A-01...
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Page 39: A Appendix
Service & Support on the Internet In addition to our documentation, we offer a comprehensive knowledge base online on the Internet at: Service and support (http://www.siemens.de/automation/service&support) There you will find: ● The latest product information, FAQs, downloads, tips and tricks. - Page 40 Appendix A.1 Technical support Additional Support Please contact your local Siemens representative and offices if you have any questions about the products described in this manual and do not find the right answers. Find your contact partner at: Partner (http://www.automation.siemens.com/partner) A signpost to the documentation of the various products and systems is available at: Documentation (http://www.siemens.de/waegetechnik/dokumentation)
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Page 41: Index
Index Preparing the load cell, 22 Installing the load cell, 25 Internet, 39 Additional Support, 40 Application, 9 Lifting protection, 13 Application, 10 Load cell Cleaning, 29 Preparing, 22 Customer Support Hotline, 39 Load cell dummy, 13 Load pick-up, 14 Design Grounding cable, 12 Mounting surfaces, 14... - Page 42 Index Scope of delivery, 23 Overview, 5 Service, 39 Support, 39 Support point, 14 Technical data, 31 RN-S SA Operating Instructions, 09/2013, A5E32962759A-01...