Siemens SIPART PS2 Guide de l'administrateur

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A5E00097485-09, 09/2014 3

SIPART

Electropneumatic positioners

SIPART PS2 Non Contacting Sensor (NCS)

Compact Operating Instructions

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.

Introduction

1.1

Purpose of this documentation

These instructions are a brief summary of important features, functions and safety information, and contain all information

required for safe use of 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 who mechanically assemble the device, connect it electrically, and start it up.

To achieve optimum usage of the device, read the detailed version of the instructions.

See also

Process instrumentation catalog (http://www.siemens.com/processinstrumentation/catalogs)

SIPART PS2 product information (http://www.siemens.com/sipartps2)

SIPART PS2 Non Contacting Sensor (NCS)

4A5E00097485-09, 09/2014

1.2

Checking the consignment

Check the device packaging for damage. Inform your supplier of any damage. Retain the damaged parts for clarification.

Check the scope of delivery by comparing the shipping documents with your order for correctness and completeness.

Do not take damaged or incomplete devices into operation under any circumstances.

Special conditions for storage and transportation of device listed in Section "Technical specifications (Page 15)".

1.3

Design of the nameplate

①

Manufacturer

⑥

FM/CSA marking for hazardous area

②

Approvals

⑦

Consult operating instructions

③

ATEX/IECEx marking for hazardous area

⑧

Place of manufacture

④

Order number

⑨

Safety class

⑤

Manufacturer serial number

⑩

Product name

Figure 1-1 Nameplate layout, example

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 15).

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.

SIPART PS2 Non Contacting Sensor (NCS)

A5E00097485-09, 09/2014 5

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.

Safety instructions

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

Description

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 marking on the device shows conformity with the regulations of the following European guidelines:

Electromagnetic Compatibility EMC

2004/108/EC

Directive of the European Parliament and of the Council on the approximation of the

laws of the Member States relating to electromagnetic compatibility and re

pealing

Directive 89/336/EEC.

Atmosphère explosible ATEX

94/9/EC

Directive of the European Parliament and the Council on the approximation of the

laws of the Member States concerning equipment and protective systems intended

for use in potentially explosive atmospheres.

LVD 2006/95/EC

Directive of the European Parliament and of the Council of the harmonisation of the

laws of Member States relating to electrical equipment designed for use within certain

voltage limits.

The applied standards can be found in the EC conformity declaration of the device.

2.2

Use in areas subject to explosion hazard

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.

SIPART PS2 Non Contacting Sensor (NCS)

6A5E00097485-09, 09/2014

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 Chapter "Technical data (Page 15)".

Description

3.1

Function

The positioner facilitates the separate installation of the position detection system. The stroke or rotary angle is measured

directly at the actuator by means of a non contacting sensor. It is therefore possible to install the controller unit at some

distance away, e.g. on a mounting pipe or similar. The positioner is wired to the position detection system by means of an

electrical cable.

Such a separate installation is useful whenever the ambient conditions at the valve exceed the specified positioner values.

The NCS consists of a molded sensor for fixed installation and a magnet. The magnet is mounted to the spindle on linear

actuators, or to the stub shaft on part-turn actuators. The sensor housing is mounted onto the console on part-turn actuators

and to the bracket on linear actuators. The bracket can be a NAMUR type, or any other mounting bracket.

Auxiliary power is supplied to the NCS via the EMC filter module C73451-A430-D23 and EMC-compatibility is ensured at the

same time.

EMC filter module ordering options:

●Installed in the positioner; see Catalog FI 01

●For retrofitting in the positioner; Order No. C73451-A430-D23. For information on retrofitting the EMC filter module, refer

to the positioner operating instructions, chapter "Installation/Mounting".

①

Pneumatic line

②

Pneumatic line for double-action actuators

③

Position detection system (10 kΩ potentiometer, or NCS)

④

Electrical cable

⑤

Retrofittable EMC filter module (in the positioner)

⑥

Positioner

Figure 3-1 Separate installation of the NCS and positioner

SIPART PS2 Non Contacting Sensor (NCS)

A5E00097485-09, 09/2014 7

3.2

Mode of operation

The NCS contains a magnetic field sensor. This sensor changes its electrical resistance in response to the immediate

presence of a permanent magnet. The sensor has a high signal-to-noise ratio to external magnetic fields due to the

measurement method used.

The following figure shows the mode of operation with a rotating magnet.

①

Magnet

③

Resistance change

②

Sensor

④

Angle

Figure 3-2 Relative resistance change depending on the angle of the magnet

The figure shows that a circular movement of the magnet generates a sinusoidal change of the resistance. The mechanical

stops of the fitting ensure that only one part (quadrant) of the sinusoidal curve is used at any one time. The principle-related

non-linearity of the curve is corrected by means of software based on a curve that is stored in the positioner.

A linear movement of the magnet in the sensor range also generates a resistance change that is used to identify the

position. The following figure highlights the principle:

①

Magnet

③

Resistance change

②

Sensor

④

Angle

Figure 3-3 Resistance change depending on the position of the magnet

Non-linearity is corrected automatically in the SIPART PS2 positioner by software.

The great advantage of this principle is the absence of wear. Moreover, vibration, dampness and temperature only have a

minor impact on the measurement result.

SIPART PS2 Non Contacting Sensor (NCS)

8A5E00097485-09, 09/2014

Mounting

4.1

Mounting the NCS to the part-turn actuator

Requirements

1. An EMC filter module in the positioner.

2. A non contacting sensor for part-turn actuators 6DR4004-.N.10 or 6DR4004-.N.40.

3. A part-turn actuator with interface to VDI/VDE 3845 and mounting console to VDI/VDE 3845, or a part-turn actuator with

manufacturer-specific interface.

NOTICE

Incorrect mounting

A clearance of 3 mm must be maintained between the magnet and the mounting console in order to ensure correct

measurement of the actuator position. The values transferred may be incorrect if this clearance is not given.

•Maintain a clearance of 3 mm between the top edge of the magnet ④and the top edge of the mounting console

⑩.

Description

①

Tensioning ring

⑧

Washer

②

Hex socket head screw size M3x12

⑨

Clamping table

③

Spring element

⑩

Mounting console

④

Magnet

⑪

Hexagon nut

⑤

Hooks

⑫

Hex socket head screw size M6x25

⑥

Plastic washer

⑬

Non Contacting Sensor (NCS)

⑦

Hex socket head screw size M6x12

Figure 4-1 Mounting on part-turn actuator with magnet holder made of glass fiber reinforced polyester (left graphic) or

anodized aluminum (right graphic)

Procedure for the part-turn actuator to VDI/VDE 3845

1. Slide the clamping table ⑨onto the stub shaft of the part-turn actuator.

2. Mount the clamping table ⑨to the stub shaft using a hex socket head screw ⑦and washer ⑧.

3. Depending on the material of the magnet holder, proceed as follows:

SIPART PS2 Non Contacting Sensor (NCS)

A5E00097485-09, 09/2014 9

Magnet holder made of glass fiber reinforced polyester

Magnet holder made of anodized aluminum

1. Insert the plastic washer

⑥

into the magnet

④

2. Fix the magnet ④onto the clamping table ⑨. The

magnet ④can now be rotated easily on the clamping

table ⑨.

3. Slide the tensioning ring ①over the magnet ④

. Make

sure that the spring elements ③

are located above the

hooks ⑤on the magnet ④ and that they engage. You

will now have more resistance when turning the

tensioning ring ①and magnet ④.

1. Place the magnet

④

onto the clamping table

⑨

2. Secure the magnet ④to the clamping table⑨by

connecting the two parts of the tensioning ring ①to

the two hex socket head screws ②. The magnet ④

can now be rotated easily on the clamping table ⑨.

3. Then tighten the two hex socket head screws ②. The

magnet ④can then no longer be rotated on the

clamping table ⑨.

4. Screw the NCS ⑬onto the mounting console ⑩using the hex nut ⑪, the washer ⑧, and the hexagon socket screw

⑫.

5. Once the NCS ⑬is mounted, the clearance of 3 mm between the top edge of the magnet ④and the top edge of the

mounting console ⑩is set automatically.

Procedure for part-turn actuators with manufacturer-specific interface

1. Steps 1 to 4 as above.

2. Set a clearance of 3 mm between the top edge of the magnet ④and the top edge of the mounting console ⑩. Extend

the stub shaft accordingly, or insert washers underneath the NCS housing ⑬.

Reference

For information on the scope of delivery, refer to chapter "Scope of delivery of NCS for part-turn actuators (Page 18)".

4.2

Mounting the NCS to a linear actuator up to 14 mm (0.55 inch)

Requirements

1. An EMC filter module in the positioner.

2. An NCS for linear actuators up to 14 mm (0.55 inch) 6DR4004-.N.20.

3. Linear actuator with interface to NAMUR. This installation must be carried out individually. Only a NAMUR mounting

bracket can be used as mounting base. The following figure shows the assembly with NAMUR mounting bracket.

linear actuator without interface to NAMUR and individual mounting solution.

SIPART PS2 Non Contacting Sensor (NCS)

10 A5E00097485-09, 09/2014

Description

Dimensions in mm

A Mounting on a yoke with fin

②

Assembly panel for Non Contacting Sensor (NCS) -

individual solution; not included in the scope of delivery

Mounting on a yoke with plane surface

③

Non Contacting Sensor (NCS)

Mounting on a yoke with columns

④

Magnet

①

NAMUR mounting bracket IEC 60534 - not

included in the scope of delivery

⑤

Mounting bracket for the magnet - individual solution;

not included in the scope of delivery

Figure 4-2 Example of the assembly on a linear actuator with a stroke up up to 14 mm (0.55 inch)

Procedure

1. Produce the mounting panel ②and mounting bracket ⑤individually.

2. Align the sensor to the center of the stroke. Observe the dimensions specified in the figure.

Reference

For information on the scope of delivery, refer to chapter "Scope of delivery of NCS for linear actuators up to 14 mm

(0.55 inch) . (Page 18)".

4.3

Mounting the NCS to a linear actuator > 14 mm (0.55 inch)

Prerequisites

1. An EMC filter module in the positioner.

2. An NCS for linear actuators > 14 mm (0.55 inch) 6DR4004-.N.30.

3. Linear actuator with interface to NAMUR

Order no. based on the respective stroke range: 6DR4004-8V or 6DR4004-8V + 6DR4004-8L.

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