Siemens SITRANS WS100 User manual

SITRANS
Speed Sensors
SITRANS WS100
Operating Instructions 06/2011

© Siemens AG 2011
Safety Guidelines
Warning notices must be observed to ensure personal safety as well as that of others, and to protect the product and the connected
equipment. These warning notices are accompanied by a clarification of the level of caution to be observed.
Qualified Personnel
This device/system may only be set up and operated in conjunction with this manual. Qualified personnel are only authorized to install
and operate this equipment in accordance with established safety practices and standards.
Unit Repair and Excluded Liability:
The user is responsible for all changes and repairs made to the device by the user or the user’s agent.
All new components are to be provided by Siemens Milltronics Process Instruments.
Restrict repair to faulty components only.
Do not reuse faulty components.
Warning: Cardboard shipping package provides limited humidity and moisture protection. This product can only function properly
and safely if it is correctly transported, stored, installed, set up, operated, and maintained.
This product is intended for use in industrial areas. Operation of this equipment in a residential area may cause interference to
several frequency based communications.
Note: Always use product in accordance with specifications.
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Technical data subject to change.
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SITRANS WS100
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SITRANS
Speed Sensors
SITRANS WS100
Operating Instructions
06/2011
7ML19985LU02-00
Introduction
1
Installing/mounting
2
Connection
3
Service and maintenance
4
Technical data
5

Legal information
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
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
CAUTION
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
NOTICE
indicates that an unintended result or situation can occur if the relevant information is not taken into account.
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.
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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
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
Order number: 7ML19985LU02
Ⓟ 06/2011
Copyright © Siemens AG 2011.
Technical data subject to change

SITRANS WS100
Operating Instructions, 06/2011, 7ML19985LU02-00 3
Table of contents
1 Introduction................................................................................................................................................ 5
1.1 SITRANS WS100 Speed Sensor...................................................................................................5
2 Installing/mounting..................................................................................................................................... 7
2.1 Dimensions ....................................................................................................................................7
2.2 Mounting ........................................................................................................................................8
2.3 General Installation Steps............................................................................................................11
3 Connection .............................................................................................................................................. 13
3.1 Interconnection.............................................................................................................................13
3.2 Terminal connections to Siemens Integrators .............................................................................14
3.3 Terminal connections to SIWAREX FTC Integrator.....................................................................15
4 Service and maintenance ........................................................................................................................ 17
4.1 Maintenance.................................................................................................................................17
4.2 Technical support.........................................................................................................................17
5 Technical data ......................................................................................................................................... 19

Table of contents
SITRANS WS100
4 Operating Instructions, 06/2011, 7ML19985LU02-00

SITRANS WS100
Operating Instructions, 06/2011, 7ML19985LU02-00 5
Introduction 1
NOTICE
For industrial use only
This product is intended for use in industrial areas. Operation of this equipment in a
residential area may cause interference to several frequency based communications.
Note
The Siemens speed sensor is to be used only in the manner outlined in this manual,
otherwise protection provided by equipment may be impaired.
This manual covers only speed sensor installation, operation, and maintenance procedures. It is
your responsibility to read this manual, and any manual for a product used in conjunction with
the SITRANS WS100 (such as a belt scale integrator), before installing and operating any
component of the weighing system to which the speed sensor will be applied.
Integrator and speed sensor instruction manuals are available for download from our website
(http://www.siemens.com/weighing)
Follow these operating instructions for quick, trouble-free installation, and maximum accuracy
and reliability of your weighing system.
We always welcome suggestions and comments about manual content, design, and
accessibility. Please direct your comments to:
Technical publications (mailto:[email protected])
1.1 SITRANS WS100 Speed Sensor
SITRANS WS100 speed sensor is a compact, medium-resolution pulley shaft-driven belt speed
sensor with magnetic mounting. It is ideal for aggregate and mineral processing industries.
This small, light-weight speed sensor features:
● Good resolution for accurate measurement, suitable for varying shaft speeds
● Long bearing life
Eight pulses are generated for each rotation of the SITRANS WS100 shaft. These pulses are
typically fed into a Milltronics belt scale integrator. The integrator interprets the pulses and uses
them in the calculation of belt speed, flow rate, and material totalization.

Introduction
1.1 SITRANS WS100 Speed Sensor
SITRANS WS100
6 Operating Instructions, 06/2011, 7ML19985LU02-00
The SITRANS WS100 IS (Intrinsically Safe) speed sensor contains a Pepperl + Fuchs, NAMUR
rated, inductive proximity switch, model number: NCN4-12GM-35-N0. The proximity switch
detects the pulses, and transmits a signal to the integrator via the associated Switch Isolator.
The SITRANS WS100 works with the following Siemens integrators:
● Milltronics BW100
● Milltronics BW500
● SIWAREX FTC
● Competitive integrators – consult your local Siemens representative
SITRANS WS100 sensors can also be used with older model Siemens integrators:
● Compuscale
● Compuscale II
● Compuscale IIA
● Compuscale III
● Compu-M
For further information about Siemens products, go to our website
(http://www.siemens.com/weighing).

SITRANS WS100
Operating Instructions, 06/2011, 7ML19985LU02-00 7
Installing/mounting 2
2.1 Dimensions
Note
Installation shall be performed only by qualified personnel in accordance with local governing
regulations.
20 (0.79)
36
(1.43)


Ø 89
(3.50)
① Polypropylene sealed housing for ferrous targets
② M20 (½" NPT) diameter hole for conduit adaptor (use flexible conduit)
③ Arrestor strap
Figure 2-1 SITRANS WS100, dimensions in mm (in)
Magnetic shaft connector option
53 (2.10)
51
(2.00)
31 (1.24)
203 (8.00)
Ø 44 (1.75)
222 (8.75)



① Stainless steel sensor cover
② Cable
③ Arrestor strap
④ Magnetic shaft connector
Figure 2-2 Magnetic shaft connector, dimensions in mm (in)

Installing/mounting
2.2 Mounting
SITRANS WS100
8 Operating Instructions, 06/2011, 7ML19985LU02-00
Male shaft connector option
15 (0.60)
22 (0.85)

① M12 x 1.75 male shaft connector
Figure 2-3 Male shaft connector, dimensions in mm (in)
2.2 Mounting
The input shaft on the SITRANS WS100 is coupled to the rotating shaft on a belt-driven
pulley with a tapped hole, and is externally supported. The arresting strap prevents the unit
rotating with the shaft, and can be attached to any rigid support member close to the
sensor.
When mounting, ensure the unit and the pulley shaft are concentric to avoid stresses on
the unit's bearings.
For mounting using the magnetic connector, ensure the face of the rotating shaft on the
belt-driven pulley is flat, and has no burrs or damage that may prevent flush mounting of
the magnetic connector. Attach the SITRANS WS100 speed sensor to the shaft: the
magnetic connector will center itself as the belt-driven pulley rotates.
WARNING
The magnetic connector has over 68 kg (150 lbs) of pulling force. Ensure no objects are
placed between the magnetic connector and the shaft to avoid personal injury.
For preferred mounting locations, refer to the associated belt scale or weighfeeder instruction
manual.