Siemens SIWAREX WL200 Series User manual

IWAREX WL200
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
Weighing systems
Load cells
SIWAREX WL200
Operating Instructions
07/2016
A5E02199611B
-03
Introduction
1
Safety instructions
2
Description
3
Installing
4
Connecting
5
Commissioning
6
Service and maintenance
7
Error messages and
troubleshooting
8
Technical data
9
Dimension drawings
10
Ordering data
11
Appendix
A

Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E02199611B-08
Ⓟ
07/2016 Subject to change
Copyright © Siemens AG 2008 - 2016.
All rights reserved
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
maint
enance 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.

SIWAREX WL200
Operating Instructions, 07/2016, A5E02199611B-03 3
Table of contents
1 Introduction............................................................................................................................................. 7
1.1 Purpose of this documentation .................................................................................................7
1.2 History.......................................................................................................................................7
1.3 Checking the consignment .......................................................................................................8
1.4 Transportation and storage.......................................................................................................8
1.5 Notes on warranty.....................................................................................................................8
2 Safety instructions................................................................................................................................... 9
2.1 Prerequisites for safe use .........................................................................................................9
2.1.1 Laws and directives ..................................................................................................................9
2.1.2 Conformity with European directives ........................................................................................9
2.2 Improper device modifications ................................................................................................10
2.3 Requirements for special applications ....................................................................................10
2.4 Use in hazardous areas..........................................................................................................10
3 Description............................................................................................................................................ 13
3.1 Range of application ...............................................................................................................13
3.2 Design and principle of operation ...........................................................................................13
3.3 Nameplate layout ....................................................................................................................15
4 Installing ............................................................................................................................................... 17
4.1 Basic safety instructions .........................................................................................................17
4.2 Procedure for mounting the device.........................................................................................18
4.3 Dismantling .............................................................................................................................19
5 Connecting ........................................................................................................................................... 21
5.1 Basic safety instructions .........................................................................................................21
5.2 Connecting principle ...............................................................................................................22
5.3 Connecting up.........................................................................................................................24
6 Commissioning ..................................................................................................................................... 27
6.1 Basic safety instructions .........................................................................................................27
6.2 Application planning................................................................................................................27
6.2.1 Planning ..................................................................................................................................27
6.2.2 Transverse forces and overload protection ............................................................................29
6.2.3 Lengthening and shortening the connecting cable .................................................................31
6.3 Adjustment and initial commissioning.....................................................................................33
6.3.1 Height compensation ..............................................................................................................33

Table of contents
SIWAREX WL200
4Operating Instructions, 07/2016, A5E02199611B-03
6.3.1.1 When is height compensation necessary? ............................................................................ 33
6.3.1.2 Procedure for height compensation ....................................................................................... 33
6.3.2 Initial commissioning.............................................................................................................. 34
6.3.3 Corner load adjustment.......................................................................................................... 34
6.3.3.1 When is corner load adjustment necessary?......................................................................... 34
6.3.3.2 General procedure for corner load adjustment ...................................................................... 35
6.3.3.3 Example for corner load adjustment ...................................................................................... 35
7 Service and maintenance...................................................................................................................... 39
7.1 Basic safety instructions ........................................................................................................ 39
7.2 Cleaning ................................................................................................................................. 39
7.3 Return procedure ................................................................................................................... 39
7.4 Disposal ................................................................................................................................. 40
8 Error messages and troubleshooting..................................................................................................... 41
8.1 Repair..................................................................................................................................... 41
8.2 Error messages...................................................................................................................... 41
8.3 Checking the mechanical and electrical configuration........................................................... 41
8.4 Checking the load cells .......................................................................................................... 42
8.5 Measures in the event of overloaded load cells..................................................................... 43
9 Technical data ...................................................................................................................................... 45
9.1 Functional data....................................................................................................................... 45
9.1.1 SIWAREX WL260 SP-S AA................................................................................................... 45
9.1.2 SIWAREX WL260 SP-S AB................................................................................................... 46
9.1.3 SIWAREX WL260 SP-S AE................................................................................................... 47
9.1.4 SIWAREX WL260 SP-S SA................................................................................................... 48
9.1.5 SIWAREX WL260 SP-S SB................................................................................................... 49
9.1.6 SIWAREX WL260 SP-S SC................................................................................................... 50
9.1.7 SIWAREX WL250 ST-S SA ................................................................................................... 51
9.1.8 SIWAREX WL230 BB-S SA................................................................................................... 52
9.1.9 SIWAREX WL230 SB-S CA................................................................................................... 53
9.1.10 SIWAREX WL230 SB-S SA................................................................................................... 55
9.1.11 SIWAREX WL270 CP-S SA................................................................................................... 56
9.1.12 SIWAREX WL270 CP-S SB................................................................................................... 57
9.1.13 SIWAREX WL270 CP-S SC .................................................................................................. 58
9.1.14 SIWAREX WL270 K-S CA ..................................................................................................... 59
9.1.15 SIWAREX WL280 RN-S SA .................................................................................................. 62
9.1.16 SIWAREX WL290 DB-S CA .................................................................................................. 63
9.2 Electrical specifications.......................................................................................................... 64
9.3 Approval to OIML R60 ........................................................................................................... 65
9.4 Electromagnetic compatibility ................................................................................................ 66
9.5 Certificates and approvals for explosion protection............................................................... 67

Table of contents
SIWAREX WL200
Operating Instructions, 07/2016, A5E02199611B-03 5
10 Dimension drawings.............................................................................................................................. 69
10.1 SIWAREX WL260 SP-S AA....................................................................................................69
10.2 SIWAREX WL260 SP-S AB....................................................................................................70
10.3 SIWAREX WL260 SP-S AE....................................................................................................70
10.4 SIWAREX WL260 SP-S SA....................................................................................................71
10.5 SIWAREX WL260 SP-S SB....................................................................................................72
10.6 SIWAREX WL260 SP-S SC ...................................................................................................73
10.7 SIWAREX WL250 ST-S SA....................................................................................................74
10.8 SIWAREX WL230 BB-S SA....................................................................................................75
10.9 SIWAREX WL230 SB-S CA ...................................................................................................76
10.10 SIWAREX WL230 SB-S SA....................................................................................................77
10.11 SIWAREX WL270 CP-S SA ...................................................................................................78
10.12 SIWAREX WL270 CP-S SB ...................................................................................................79
10.13 SIWAREX WL270 CP-S SC ...................................................................................................80
10.14 SIWAREX WL270 K-S CA......................................................................................................81
10.15 SIWAREX WL280 RN-S SA ...................................................................................................83
10.16 SIWAREX WL290 DB-S CA ...................................................................................................89
11 Ordering data........................................................................................................................................ 91
11.1 Load cells................................................................................................................................91
11.2 Accessories.............................................................................................................................98
A Appendix............................................................................................................................................... 99
A.1 Technical support....................................................................................................................99
Index................................................................................................................................................... 101

Table of contents
SIWAREX WL200
6Operating Instructions, 07/2016, A5E02199611B-03

SIWAREX WL200
Operating Instructions, 07/2016, A5E02199611B-03 7
Introduction
1
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.
See also
Technical support (Page 99)
1.2
History
The following versions of this documentation have been released to date. The changes apply
to the previous version:
Table 1- 1 History
Edition
Remarks/changes
10/2008 Initial release
04/2009 Addition to SP-S SA 30 t load cell.
Designation updated: WL200 instead of WL 200.
Corrections made mainly to the specifications.
Additions to explosion protection and ATEX approval
07/2010
Addition to WL280 RN-S SA 10 t; 13 t; 28 t and 60 t load cells.
09/2010 Addition to WL280 RN-S SA 60 kg to 5 t load cells
Addition to WL270 K-S CA load cells
02/2013 WL270 K-
S CA load cells with additional versions (high temperature, double
bridge) and extended operating range up to 500 t. WL260 SP-S SB load
cells and WL260 SP-S SC load cells.
09/2013
Expansion of the load cells WL270 K and WL280 RN for hazardous areas
11/2013
Dimensions of WL250 ST-S SA changed.
11/2014
Integration of load cell WL260 SP-S AE
03/2015 Integration of load cell WL230 SB-S CA. Description of nameplate und
ATEX label.
General formal changes.
05/2016
Addition to load cell WL290 DB-S CA

Introduction
1.3 Checking the consignment
SIWAREX WL200
8Operating Instructions, 07/2016, A5E02199611B-03
1.3
Checking the consignment
1. Check the packaging and the delivered items for visible damage.
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.
WARNING
Using a damaged or incomplete device
Danger of explosion in hazardous areas.
•Do not use damaged or incomplete devices.
1.4
Transportation and storage
To guarantee sufficient protection during transport and storage, observe the following:
●Keep the original packaging for subsequent transportation.
●Devices/replacement parts should be returned in their original packaging.
●If the original packaging is no longer available, ensure that all shipments are properly
packaged to provide sufficient protection during transport. Siemens cannot assume
liability for any costs associated with transportation damages.
CAUTION
Insufficient protection during storage
The packaging only provides limited protection against moisture and infiltration.
•Provide additional packaging as necessary.
Special conditions for storage and transportation of the device are listed in Technical data
(Page 45).
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.

SIWAREX WL200
Operating Instructions, 07/2016, A5E02199611B-03 9
Safety instructions
2
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.
Symbol
Explanation
Consult operating instructions
2.1.1
Laws and directives
Observe the test certification, provisions and laws applicable in your country during
connection, assembly and operation. These include, for example:
●National Electrical Code (NEC - NFPA 70) (USA)
●Canadian Electrical Code (CEC) (Canada)
Further provisions for hazardous area applications are for example:
●IEC 60079-14 (international)
●EN 60079-14 (EC)
2.1.2
Conformity with European directives
The CE mark on the device is a sign of conformity with the following European directives:
Electromagnetic compatibi
l-
ity EMC
2014/30/EU
Directive of the European Parliament and of the Council on the
approximation of the laws of the Member States relating to elec-
tromagnetic compatibility and repealing Directive 89/336/EEC.
Atmosphè
re explosible
ATEX
2014/34/EU
Directive of the European Parliament and the Council on the
a
pproximation of the laws of the Member States concerning
equi
pment and protective systems intended for use in potential-
ly explosive atmospheres.
The standards applied can be found in the EC declaration of conformity for the device.

Safety instructions
2.2 Improper device modifications
SIWAREX WL200
10 Operating Instructions, 07/2016, A5E02199611B-03
2.2
Improper device modifications
WARNING
Improper device modifications
Danger 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.
2.3
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.
2.4
Use in hazardous areas
Qualified personnel for hazardous area applications
Persons who install, connect, commission, operate, and service the device in a hazardous
area must have the following specific qualifications:
●They are authorized, trained or instructed in operating and maintaining devices and
systems according to the safety regulations for electrical circuits, high pressures,
aggressive, and hazardous media.
●They are authorized, trained, or instructed in carrying out work on electrical circuits for
hazardous systems.
●They are trained or instructed in maintenance and use of appropriate safety equipment
according to the pertinent safety regulations.

Safety instructions
2.4 Use in hazardous areas
SIWAREX WL200
Operating Instructions, 07/2016, A5E02199611B-03 11
WARNING
Unsuitable device for the hazardous area
Danger of explosion.
•Only use equipment that is approved for use in the intended hazardous area and
labelled accordingly.
WARNING
Loss of safety of device with type of protection "Intrinsic safety Ex i"
If the device has already been operated in non-intrinsically safe circuits or the electrical
specifications have not been observed, the safety of the device is no longer ensured for use
in hazardous areas. There is a danger of explosion.
•Connect the device with type of protection "Intrinsic safety" solely to an intrinsically safe
circuit.
•Observe the specifications for the electrical data on the certificate and/or in Technical
data (Page 45).
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 to the jet from a pressure washer.

Safety instructions
2.4 Use in hazardous areas
SIWAREX WL200
12 Operating Instructions, 07/2016, A5E02199611B-03

SIWAREX WL200
Operating Instructions, 07/2016, A5E02199611B-03 13
Description
3
3.1
Range of application
SIWAREX load cells are used for measuring forces and weights statically and dynamically.
You can use SIWAREX load cells for almost all applications in industrial weighing
technology. Examples include:
●Container weighers, hopper scales or platform scales,
●Roller table, conveyor or crane scales,
●Plants for bottling/packing, dosing and mixing,
●for checking levels and completeness,
●Equipment for monitoring pressing or stretching processes,
●Dynamic scales
All applications can be implemented in equipment requiring official calibration or in areas
subject to explosion hazards.
3.2
Design and principle of operation
Design
SIWAREX load cells are based on strain gauges. Strain-gauge load cells are transducers
which convert mechanical forces into electrical signals. The principle of operation is the
same regardless of variations in design.
Figure 3-1 Design, based on the example of an unloaded bending beam load cell

Description
3.2 Design and principle of operation
SIWAREX WL200
14 Operating Instructions, 07/2016, A5E02199611B-03
Principle of operation
The basic component in each case is a special type of spring body. The application of force
elastically deforms the spring body. The ohmic resistance of the strain gauges changes as a
result.
Figure 3-2 Principle of operation, based on the example of a loaded bending beam load cell
For each load cell, at least four strain gauges are connected together as a complete
Wheatstone bridge. The stretched or compressed strain gauges are connected in such a
manner that the positive or negative resistance changes are summed to produce an overall
imbalance of the bridge.
The supply voltage is applied across one diagonal of the bridge and, in the case of the six-
wire connection method, also the sensor voltage SENSE. The measured voltage is tapped
across the other diagonal.
For a constant supply voltage EXC, therefore, the measured voltage SIG changes
proportionally to the introduced load. In practice, load cells contain additional resistors for
temperature compensation and for zero-signal and characteristic-value compensation.
Depending on their type and the requirements, these resistors can be arranged at the input
or output of the load cell.
Figure 3-3 The principle of a Wheatstone bridge

Description
3.3 Nameplate layout
SIWAREX WL200
Operating Instructions, 07/2016, A5E02199611B-03 15
3.3
Nameplate layout
Nameplate layout with general information
①
Company logo
②
Product group designation
③
Order number
④
Product designation
⑤
RCM
⑥
Serial number
⑦
Rated characteristic value Cn of load cell
⑧
Manufacturer's address
⑨
Country of origin
Figure 3-4 Example of
nameplate layout with general information

Description
3.3 Nameplate layout
SIWAREX WL200
16 Operating Instructions, 07/2016, A5E02199611B-03
Nameplate layout with approval information
①
Ex marking of the customs union
②
Types of protection of the customs union
③
Ex marking (ATEX)
④
Numbers of ATEX approvals
⑤
Type of protection according to ATEX
⑥
Degree of protection according to EN 60 529, e.g. IP67. The degree of protection depends on the type of load cell.
⑦
Number of the manufacturer's declaration for zone 2
⑧
Type of protection according to ATEX
⑨
Permitted temperature range
⑩
CE mark
⑪
Number of the certificate of the customs union
⑫
Notified body of the customs union
⑬
EAC marking of the customs union
Figure 3-5 Example of nameplate layout with approval information
See also
Adjustment and initial commissioning (Page 33)

SIWAREX WL200
Operating Instructions, 07/2016, A5E02199611B-03 17
Installing
4
4.1
Basic safety 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. For this reason, appropriate protection against falling and catastrophes
must be implemented in accordance with the potential risks.
•Use suitable hoisting equipment to lift the load carrier. Observe the appropriate safety
regulations.
NOTICE
Damage to load cells through incorrect handling
•SIWAREX load cells are only permitted to be mounted and connected by qualified
personnel.
•Mechanical shocks or falls can irreparably damage the load cell.
•When mounting the load cell, ensure that you do not damage or cut the cables of the
load cell. Load cells must not be carried by their connecting cables.
•Protect the load cells from shocks and welding currents. Replace the load cells with
dummies until the installation work on the scale structure is completed.
NOTICE
Damage to load cells through high currents
•If welding is undertaken after the load cells have been installed, ensure that the welding
current is not diverted through the load cells.
–You can do this by attaching the grounding clamp of the welding unit making reliable
contact close to the weld.
–Bridge the load cells with a ground cable, for more on this, see Accessories
(Page 98)
–Disconnect the individual load cells.
•Undesirable electrical currents can arise during lightning. Bridge the load cells with a
highly flexible ground cable to protect the load cells against such currents, for more on
this, see Accessories (Page 98).

Installing
4.2 Procedure for mounting the device
SIWAREX WL200
18 Operating Instructions, 07/2016, A5E02199611B-03
NOTICE
Damage to load cells through incorrect mounting
•Provide indented claws or crane eyebolts on the load bearer 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. when tightening locknuts.
•Adjust the existing overload protection to ensure that it can still reliably sense transfer of
the required load. The overload protection must permit a rise in weight unhindered until
the setpoint weight is reached.
•Protect the gap between the load cell and overload protection from the build up of dirt or
ice.
•The load must be introduced in the measuring direction of the load cell. Torsional and
bending moments, eccentric loads and lateral forces are disturbances. These
disturbances falsify the measured result and can damage the load cell if the permissible
limits of the load cell and mounting components are exceeded.
The mounting components normally allow so much room for movement that heat
expansion will not result in lateral loading.
NOTICE
Destruction of load cells
Proceed carefully with installation. The load cells can be destroyed if they are installed
incorrectly.
4.2
Procedure for mounting the device
Procedure for mounting the device
1. Observe the installation guidelines for the mounting components.
–You can find dimension drawings of installation elements under Dimension drawings
(Page 69).
–Lay the cables for the load cells through cable glands in the form of a vertical
downwards loop to discourage the penetration of water.
2. Check that the load cells and mounting components are installed correctly, e.g. by
checking the mounting dimensions and oscillation distances.
See also
Nameplate layout (Page 15)

Installing
4.3 Dismantling
SIWAREX WL200
Operating Instructions, 07/2016, A5E02199611B-03 19
4.3
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. Take the load off the load cell.
5. Carefully remove the load cell without using force. Do not pull on the cable of the load
cell.
6. Do not cut the cable if the load cell is to be re-used or sent in for repair.
7. Do not carry the load cell by the cable.

Installing
4.3 Dismantling
SIWAREX WL200
20 Operating Instructions, 07/2016, A5E02199611B-03