Siemens SIWAREX WL230 SB-S CA User Manual
SIWAREX WL230
Load foot
SB-S CA
7MH5721-4GH10 (load foot 0.1 to 2 t)
7MH5721-4PH10 (load foot 2.5 to 5 t)
7MH5721-5AH10 (load foot 10 t)
Introduction
1
Manual
Safety notes
Description
Application planning
Installing/mounting
Service and maintenance
Technical specifications
Dimension drawings
2
3
4
5
6
7
8
Certificates and approvals
A
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A5E47600142-AA
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be
used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property
damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified
personnel are those who, based on their training and experience, are capable of identifying risks and avoiding
potential hazards when working with these products/systems.
Proper use of Siemens products
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. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described.
Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this
publication is reviewed regularly and any necessary corrections are included in subsequent editions.
Siemens AG
Digital Industries
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E47600142
Ⓟ 06/2019 Subject to change
Copyright © Siemens AG 2019.
All rights reserved
Table of contents
1 Introduction...................................................................................................................................................5
1.1 Purpose of this documentation.................................................................................................5
1.2 Document history .....................................................................................................................5
1.3 Checking the scope of delivery ................................................................................................5
1.4 Security information .................................................................................................................5
1.5 Notes on warranty ....................................................................................................................6
2 Safety notes..................................................................................................................................................7
2.1 Prerequisites for safe use ........................................................................................................7
2.1.1 Improper device modifications .................................................................................................7
2.2 Requirements for special applications .....................................................................................7
3 Description....................................................................................................................................................9
3.1 SIWAREX WL230 SB-S CA design .........................................................................................9
3.2 Characteristics .........................................................................................................................9
4 Application planning ...................................................................................................................................11
4.1 Load cell dummies .................................................................................................................11
4.2 Lifting protection.....................................................................................................................11
4.3 Load pick-up...........................................................................................................................11
4.4 Overload protection................................................................................................................12
4.5 Guide elements ......................................................................................................................13
4.6 Grounding cable.....................................................................................................................15
5 Installing/mounting......................................................................................................................................17
5.1 Basic safety instructions.........................................................................................................17
5.2 General notes on mounting....................................................................................................18
5.3 Mounting the load foot............................................................................................................19
5.4 Check the scope of delivery ...................................................................................................20
5.5 Create bracket plate...............................................................................................................21
5.6 Screw the load cell to the load bearing implement.................................................................22
5.7 Installing the load foot in the load cell ....................................................................................23
5.8 Compensating differences in height.......................................................................................24
5.9 Checking the mounting ..........................................................................................................24
5.10 Screw on the grounding cable................................................................................................25
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Table of contents
5.11 Dismantling ............................................................................................................................25
6 Service and maintenance ...........................................................................................................................27
6.1 Care and maintenance of elastomer components .................................................................27
6.1.1 Environmental influences/storage ..........................................................................................27
6.1.2 Service life / Control ...............................................................................................................28
6.1.3 Cleaning .................................................................................................................................28
7 Technical specifications..............................................................................................................................29
8 Dimension drawings ...................................................................................................................................31
8.1 Dimension drawing of the load foot........................................................................................31
8.2 Dimension drawing of grounding cable ..................................................................................32
A Certificates and approvals ..........................................................................................................................33
A.1 Technical support...................................................................................................................33
Index...........................................................................................................................................................35
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Introduction
1.1 Purpose of this documentation
These instructions contain all information required to commission and use the device. Read the
instructions carefully prior to installation and commissioning. In order to use the device
correctly, first review its principle of operation.
The instructions are aimed at persons mechanically installing the device, connecting it
electronically, configuring the parameters and commissioning it, as well as service and
maintenance engineers.
1.2 Document history
The most important changes in the documentation when compared with the respective
previous edition are given in the following table.
Table 1-1 Editions
Edition Comment/Change
05/2019 Initial release
1
1.3 Checking the scope of delivery
1. Check the packaging and the delivered articles for visible damage.
2. Report any claims for damages immediately to the shipping company.
3. Retain the damaged parts until clarification.
4. Check the consignment by comparing your order with the shipping documents for
correctness and completeness.
1.4 Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
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 constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected
to an enterprise network or the internet if and to the extent such a connection is necessary and
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Introduction
1.5 Notes on warranty
only when appropriate security measures (e.g. firewalls and/or network segmentation) are in
place.
For additional information on industrial security measures that may be implemented, please
visit
https://www.siemens.com/industrialsecurity.
Siemens’ products and solutions undergo continuous development to make them more secure.
Siemens strongly recommends that product updates are applied as soon as they are available
and that the latest product versions are used. Use of product versions that are no longer
supported, and failure to apply the latest updates may increase customer’s exposure to cyber
threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS
Feed under
https://www.siemens.com/industrialsecurity.
1.5 Notes on warranty
The contents of this manual shall not become part of or modify any prior or existing agreement,
commitment or legal relationship. The sales contract contains all obligations on the part of
Siemens as well as the complete and solely applicable warranty conditions. Any statements
regarding device versions described in the manual do not create new warranties or modify the
existing warranty.
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.
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Safety notes
2.1 Prerequisites for safe use
This device left the factory in good working condition. In order to maintain this status and to
ensure safe operation of the device, observe these instructions and all the specifications
relevant to safety.
Observe the information and symbols on the device. Do not remove any information or symbols
from the device. Always keep the information and symbols in a completely legible state.
2.1.1 Improper device modifications
WARNING
Improper device modifications
Risk to personnel, system and environment can result from modifications to the device,
particularly in hazardous areas.
● Only carry out modifications that are described in the instructions for the device. Failure to
observe this requirement cancels the manufacturer's warranty and the product approvals.
2
2.2 Requirements for special applications
Due to the large number of possible applications, each detail of the described device versions
for each possible scenario during commissioning, operation, maintenance or operation in
systems cannot be considered in the instructions. If you need additional information not
covered by these instructions, contact your local Siemens office or company representative.
Note
Operation under special ambient conditions
We highly recommend that you contact your Siemens representative or our application
department before you operate the device under special ambient conditions as can be
encountered in nuclear power plants or when the device is used for research and development
purposes.
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Safety notes
2.2 Requirements for special applications
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Description
3.1 SIWAREX WL230 SB-S CA design
The self-aligning load foot for SIWAREX WL230 SB-S CA load cells is particularly suitable for
installation in platform and bin scales.
3
① Load bearing
② Load cell
③ Locknut
④ Ball joint with pendulum function
⑤ Lower part with rubber cap
⑥ Mounting screws
⑦ Bracket plate
Figure 3-1 Load foot and load cell and load bearing implement
3.2 Characteristics
The load foot has the following characteristics:
● Easy installation of the load cell
● Self-aligning effect on the load bearing implement
● Height compensation via screw thread
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Description
3.2 Characteristics
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Application planning
'
G
;
4.1 Load cell dummies
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.
4.2 Lifting protection
The following figure shows a proposed solution for lifting protection. The X designates the
possible lifting path of the load bearing implement. The bore ØD must be larger than the
diameter of the bolt Ød. The movement of the load bearing implement must not be hindered.
4
Figure 4-1 Proposed solution for lifting protection
4.3 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.
● Ensure that the foundations are absolutely firm and free of depressions. Mount the
installation elements in concrete foundations on evenly cast steel plates.
● The mounting surfaces must be vertical to the measuring direction and preferably in one
plane.
● A plane of ≤ 0.2 mm is required for the mounting surfaces.
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