SIMATIC PX proximity switchesfor reliable sensing,counting, measurement or monitoring

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© Siemens AG 2007

SIMATIC PX proximity switches for reliablesensing, counting, measurement or monitoring

Whether the objects are in solid, liquid or powder form; whether you want to detect, count, measure, monitor or posi-tion: Proximity switches are invaluable in plants of all types and sizes; in conveyor systems, packaging lines or printing presses, and in production robots, lifts, industrial presses or automatic welders.

Comprehensive automation, complex operational sequences and high work speeds pose exceptional demands which are met by the broad range of proximity switches:

· SIMATIC PXS sonar proximity switches Ultrasonic sensors for all kinds of materials

· SIMATIC PXO opto proximity switchesPhotoelectric sensors for distances up to 50 m

· SIMATIC PXI inductive proximity switchesfor metal objects even under tough ambient conditions

· SIMATIC PXC capacitive proximity switchesfor conductive and non-conductive materials with various properties

Highlights■ Contactless detection of objects

■ Extensive and complete product range including photo-electric, inductive, sonar and capacitive sensors

■ International versions (UL/CSA)

■ Up to degree of protection IP69K, depending on type of sensor

■ Versions for use in Ex zone 2/22

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© Siemens AG 2007

Totally integrated in TIA

IQ-Link is a concept for the intelligent integration of sensors in automation systems. Just like all products and systems incor-porated in Totally Integrated Automation, IQ-Link devices also feature the same properties with respect to communications capability, data management and configuration/program-ming. This provides advantages in every aspect, and not just enormous savings potential for engineering. For the first time, plant-wide communication down to the sensor level can be implemented not just extremely easily, but highly profitably as well.

SIMATIC PXS sonar proximity switches

Sonar proximity switches can be used as non-contact proxim-ity switches in many fields of automation. These devices can be used whenever distances through air have to be evaluated, because they not only detect objects, but can also output and evaluate the absolute distance between the Sonar proximity switch and the object. Changing environmental conditions (e.g. temperature variations) are compensated during evaluation of the measurement.

SIMATIC PXO optical proximity switches

The photoelectric proximity switches react to changes in the received quantity of light. The light beam emitted from the emitter diode is interrupted or reflected by the object to be detected.

Depending on the type of BERO, the interruption or reflection of the light beam is evaluated.

SIMATIC PXI inductive proximity switches

Inductive proximity switches are the low-cost solution for non-contact detection of metal objects.

Inductive proximity switches are extremely reliable with a very high repeat accuracy and long service life thanks to no-wear operation as well as their insensitivity to temperature, noise, light and water.

SIMATIC PXC capacitive proximity switches

Capacitive proximity switches are also non-contact sensors for measuring conducting and non-conducting materials in solid, powder or liquid state.

SIMATIC PX proximity switchesPortfolio overview

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© Siemens AG 2007

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Intelligent proximity switchesEasy to insert, simply more productive

Sensors and PLCs are growing together

Sensors are becoming more intelligent and versatile. Thus set-ting and evaluation possibilities are increasing.

Thanks to intelligent linking to the PLC, IQ-Link can now be used to implement significantly more flexibility and reliability of the sensors.

The uniform exchange of data presents a great number of ad-vantages - for plant construction as well as for its operation.

Thanks to the integrated availability of parameters, for exam-ple, a setting made on a sensor can be transferred to other sensors as often as required.

Central data management ensures that the sensors continue to work with the correct setting values without new parame-terizing even after replacement.

Furthermore, IQ-Link permits channel-specific system diag-nostics. In addition to failures in wiring sensor-specific errors will be detected.

Thanks to TIA all these augmented functions are available in the usual system environment without additional configuring. TIA provides this already system integrated.

New communication standard:IO-Link

Well-known manufacturers of sensor and automation technol-ogies partnered up under the roof of the PROFIBUS user orga-nization (PNO) to develop an integrated communication stan-dard for sensors and actuators. After completion of the specification at the beginning of 2008 together with the inte-gration into the fieldbus level first IO-Link products will come into the market.

Retaining the low-priced point-to-point wiring the goal was to create potential for further cost reductions for the user on commissioning and maintenance costs as well as plant avail-ability.

The proven IQ-Sense technology from Siemens was incorpo-rated into the IO-Link specification. Siemens has played and will play a leading role in the creation of the new standard which additionally has been turned in as an IEC standard.

HighlightsEngineering

■ Seamless integration in SIMATIC STEP 7

■ Transparent display of all sensor parameters

■ Channel-specific system diagnostics

■ No additional parameterization software needed

Start-up

■ Less wiring effort due to use of standardized, unshielded 3-wire connections

■ Sensor parameters are teachable and can be copied

■ Editing or teaching of sensor parameters optional

■ Avoidance of sensor interaction through anti-interfer-ence function

■ Simple and cost-effective wiring, fast commissioning

Operation and maintenance

■ Dynamic parameter modification using the PLC

■ Integrated diagnostic information down to the sensor level

■ Swap of sensors without reparameterizing

■ High plant availability with alarm and message displays for preventive maintenance

© Siemens AG 2007

IO-Link in the automation environment

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© Siemens AG 2007

SIMATIC PXS sonar proximity switchesfrom 2.5 cm to 10 m - they hear everything!

Sonar proximity switches SIMATIC PXS ensure non-contact sensing with millimeter precision in the range from 2.5 cm to 10 m.

Principle: Sonar proximity switches transmit ultrasonic pulses; when reflected by objects or surfaces, the echoes can be received by the proximity switch and the distances calcu-lated and converted to an output signal.

Sonar proximity switches feature large sensing distances up to 10 meters, high accuracy in the millimeter range, good repro-ducibility and require little maintenance.

Sensing is not affected by dust and contamination common in harsh industrial environments. Liquids can be sensed with the same precision as solids, granulates or powders.

Sonar proximity switches are suitable for a wide range of applications, such as level measurement, position detection, limit detection, thickness measurement and stack height measurement.

Distance monitoring

Size measurement

Measurement of stack height

Measurement of diameter and speed indicator

Loop monitoring

Quality control

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Contour measurement

© Siemens AG 2007

Overview of SIMATIC PXSsonar proxi-mity switches

*) = Depending on implementation

Type

Sensing range6 ...

30 cm20 ...

100 cm5 ...

150 cm20 ...

100 cm25 ... 40 cm

0 ... 40 cm

0 ... 80 cm

2 ... 25 cm

0 ... 25 cm

6 ... 30 cm

20 ... 130 cm

40 ... 300 cm

60 ... 600 cm

5 ... 40 cm

0 ... 80 cm

0 ... 40 cm

0 ... 20 cm

3 ... 20 cm

0 ... 40 cm

5 ... 40 cm

0 ... 70 cm

10 ... 70 cm

5 ... 70 cm

2,5 ... 40 cm

Operating mode

· Diffuse sensor

· Reflex sensor

· Thru-beam sensor

Design

· Fixed transformer

· Angular sensor area

· Swivel-mounted sensor

· Separate sensor head

Output

· 1 switching output

· 2 switching outputs

· Analog output 0 to 20 mA

· Analog output 4 to 20 mA

· Analog output 0 to 10 V

· Frequency output

Direct communication with PLC

Temperaturecompensation

Adjustment

· 1 potentiometer

· 2 potentiometers

· Teach-in

· Plug-in jumper

· SONPROG

Connection

· M8 connector

· M12 connector

· Cable

· Terminals

Degree of protection

· IP 65

· IP 67

Product selection code

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K0 compact range Sonar thru-beam sensor

3SG16 compact range

M30 K1 compact range

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SIMATIC PXS100 SIMATIC PXS200

M18 S compact range

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K21 compact range

Version A

K08 compact range

Version B

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© Siemens AG 2007

9 10

6 ... 30 cm

20 ... 130 cm

40 ... 300 cm

60 ... 600 cm

5 ... 30 cm

15 ...100 cm

6 ... 50 cm

20 ... 150 cm

25 ... 250 cm

6 ... 30 cm

20 ... 130 cm

40 ... 300 cm

60 ... 600 cm

5 ... 30 cm

15 ...100 cm

6 ... 30 cm

20 ... 130 cm

40 ... 300 cm

60 ... 600 cm

6 ... 30 cm

*) *) *) *)

M18 compact range M30 K3 compact rangeDouble-layer

sheetmonitoring

K65 compact range M30 K2 compact range

SIMATIC PXS300 SIMATIC PXS400 SIMATIC PXS900

SIMATIC PXS800

M30 K3 ATEX compact range M18 ATEX compact range

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© Siemens AG 2007

SIMATIC PXS sonar proximity switchesFunctionality and highlights

Function

The sonar proximity switches only operate through the me-dium of air and can detect any objects that reflect ultrasound.

They emit ultrasonic pulses cyclically. When an object reflects these pulses, the resulting echo is received and converted into an electrical signal. The incoming echo is detected in accor-dance with its intensity which, in turn, is dependent on the distance between the object and the sonar proximity switch.

Sonar proximity switches operate according to the echo prop-agation principle, i.e. the time difference between the emit-ted pulse and the echo pulse is evaluated.

The construction of the sensor causes the ultrasonic beam to be emitted in the shape of a cone.

Temperature compensation

The proximity switches of compact ranges M30 K2, M30 K3 and M18 are fitted with temperature sensors and a compen-sation circuit that equalizes changes in operating distances caused by temperature changes.

Synchronization

In compact ranges M30 K2, M30 K3 and M18, several devices can be synchronized with each other by simply interconnect-ing the synchronization outputs of the devices. Up to 10 de-vices can be synchronized (or 6 devices in the case of compact range 0).

This allows the sensors to be mounted extremely close to each other in many cases without causing mutual interference.

Programming with SONPROG

· Programming the devices of the compact ranges M18, M30 K2 and M30 K3

· Possible settings include:

· Operating range beginning and end

· Analog range beginning and end

· Switching hysteresis

· Mean value generation

· Multiplex mode

· NO/NC contact switchover

Sensors for Ex Zone 2/22

The PXS800 sonar proximity switches are approved according to EU Guideline 94/9/EG (ATEX) Appendix VIII.

The approval is for:

· Gas EX II 3G EEx nA II T6 X and

· Dust EX II 3D IP65 T 80 °C X

The functionality of the sonar proximity switches with ATEX approval is identical to that of the standard proximity switches.

Product lines

The sonar proximity switches are organized in different prod-uct families in accordance with their technical version and de-sign:

Highlights■ Millimeter-accurate measurement

■ Color and material-independent, even transparent objects

■ Individual parameter setting

■ Small, compact housing

■ Very high degree of repeat accuracy

■ UL/CSA approvals

■ Sensors available for Ex Zone 2/22

■ Insensitive to temperature, noise, light and water

SIMATIC Sensors Form

PXS100 Compact range 0, compact form 3SG16, sonar barrier

PXS200 Compact range K21, compact range M30 K1, compact range M18S, compact form K08

PXS300 Compact range M30 K2, compact range M18, compact form K65

PXS400 M30 K3 compact range

PXS800 M18 ATEX compact range,M30 K3 ATEX compact range

PXS900 Double-layer sheet monitoring

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© Siemens AG 2007

SIMATIC PXO opto proximity switchesFast and accurate sensing with light and laser

The various versions of the SIMATIC PXO opto proximity switches are predominantly used in the following applica-tions:

· In conveyor systems

· In packaging machines

· In mechanical engineering applications

· In paper, textile and plastics processing

· In printing machines

· For access control.

These photoelectric sensors detect all objects regardless of their composition, whether metal, wood or plastic. Special versions of the K20 form in miniature enclosure and the C40 are available for detecting transparent objects.

Special devices such as the color sensor or color mark sensor can be used to detect differences in color or contrast. An ana-log laser and also the Fibre-optic sensor support extremely precise distance measurements and position monitoring. Application of a laser distance sensor for precise distance sensing of conveyers would be appropriate.

The devices can be mounted in any position. They should be installed in such a manner as to prevent dirt deposits as far as possible.

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Counting with thru-beam sensor

Measurement of diameter using diffuse sensor

Height measurement (diffuse sensor with background suppression)

Counting with retroreflective sensor

© Siemens AG 2007

SIMATIC PXO opto proximity switchesFunctionality and highlight

Diffuse sensor (energetic sensor)

The light from the emitter falls on an object and is reflected in a diffuse pattern. Part of this reflected light reaches the re-ceiver located in the same device. If the intensity of the re-ceived light is sufficient, the output is switched. The sensing range depends on the size and color of the object involved as well as its surface texture. The sensing range can be varied within a wide range by means of the built-in poten-tiometer. The energetic sensor can therefore also be used to detect different colors.

Diffuse sensor with background suppression

Diffuse sensors with background suppression can detect ob-jects up to a specific sensing range. All objects beyond this range are suppressed. The focus level can be adjusted. The background is suppressed due to the geometric constellation between the emitter and the receiver.

Retroreflective sensors

The light from the emitter diode is focused through a lens and directed via a polarization filter to a reflector (principle of a 3-way mirror). Part of the reflected light passes through another polarization filter and reaches the receiver. The filters are se-lected and aligned in such a way that only the light reflected from the reflector reaches the receiver and not the light re-flected from other objects within the beam range.

Thru-beam sensors

Thru-beam sensors comprise an emitter and a receiver. The emitter is aligned in such a way that the greatest possible amount of pulsed light from the emitter diode reaches the re-ceiver. The receiver evaluates the incoming light to clearly separate it from the ambient light and other light sources.

Sensors for Ex Zone 2/22

The K80 ATEX optical proximity switches are approved accord-ing to EU Guideline 94/9/EG (ATEX) Appendix VIII

The approval is for:

· Gas EX II 3G EEx nA II T6 X and

· Dust EX II 3D IP65 T 80 °C X

The functionality of the optical proximity switches with ATEX approval is identical to that of the standard proximity switches.

Highlights■ Extremely precise and quick-acting with pin-point locat-

ing ability

■ High performance even across large distances

■ Small, compact housing

■ Reliable measurement even in the smallest spaces with Mini-Sensor (K20/K21)

■ Degree of protection up to IP68

■ Adjustable ranges

■ Simple commissioning (Teach-In)

■ UL/CSA approvals

■ Version for use in Ex zone 2/22 (K80 form)

■ Precise sensing of smallest objects with fiber-optic sen-sors or fork sensors

■ Sensing or distance measurement on large distances with laser distance sensors

SIMATIC Sensors

Version Form

PXO100 Cylindricalversion, mini

D4, M5, M12

PXO200 Cylindricalversions

M18S, M18, L18

PXO300 Cubic version, mini

K21, K21R, K20, L20, C20

PXO400 Cubic version, small

K31, K30

PXO500 Cubic version

C40, L50, L50HF, L50HF, adv., C50

PXO600 Cubic version, large

K80, L80HF, L90L

PXO800 Special deviceamplifiers

GL, LV70

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© Siemens AG 2007

Type D4, M5 M12 M18S M18 L18 K21 K20 L20 PXO 370 C20

Operating mode

· Diffuse sensor

· Diffuse sensor with back-ground suppression

· Retroreflective sensor

· Thru-beam sensor

· Contrast sensor

· Color sensor

· Distance measurement

Sensing range

· 1.8 cm to 3 cm

· 5 cm to 10 cm

· 12 cm to 15 cm

· 20 cm to 30 cm

· 40 cm to 50 cm *)

· 60 cm to 70 cm *)

· 1 m to 1.5 m

· 2 m to 3 m

· 4 m to 6 m

· 12 m to 15 m

· 15 m to 20 m

· 30 m

· 50 m

Output

· Electronic contact

· Relay

· Analog

Direct communication with the PLC

Operating voltage

· 24 VDC

· 20 ... 265/320 VAC/DC

Connection

· M8 connector

· M12 connector

· Cable

· Terminals

Special features

· Timer function

· Surplus light

· Transparent objects

· Approval for Ex Zone 2/22

Light type

· Visible light

· Infrared light

· Laser light, red

· Laser light, infrared

· White light, pulsed

Product selection code

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Overview of SIMATIC PXOopto proximity switches

SIMATIC PXO100 SIMATIC PXO200 SIMATIC PXO300

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© Siemens AG 2007

K31 K30 C40 L50 C50 K80 L80 PXO650 L90L PXO830 GL PXO840 LV70

om-muni

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SIMATIC PXO400 SIMATIC PXO600

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SIMATIC PXO500 SIMATIC PXO800© Siemens AG 2007

SIMATIC PXI inductive proximity switchesRugged, accurate and reliable

SIMATIC PXI inductive proximity switches are used for non-contact sensing of metal objects, e.g. on printing presses, con-veyor systems, robots, elevators, presses, automatic welding machines, etc. Inductive proximity switches feature a long ser-vice life, high switching accuracy and a fast response. They can also be used in demanding environments, exposed to e.g. splash water, cleaning emulsions, oil and lubricants.

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Recognition of cans and lids

Recognition of the valve position (completely open or closed)

Recognition of adjusting screws on the wheel for velocity or direction control

© Siemens AG 2007

Find the right product faster with the product selection code!In the A&D Mall: enter the product selection code to display a list of relevant products.In Catalog FS 10: use the product selection code in the order number index in Chapter 6 to find the chapter and page of suitable products.

3 mm 4 mm M5 5 mm x 5 mm M8 6.5 mm 8 mm x 8 mm M12 12 mm x 40 mm 12 mm x 32 mm Quader mit M14 M18 18 mm M3040 mm x 40 mm

60 mm x 80 mm

80 mm x 100 mm

4 mm M5 M8

Operating distance

· 0 to 0.8 mm (PXI.1.) 0.6 mm 0.8 mm 0.8 mm 0.8 mm 0.6 mm 0.6 mm

· 1 to 4 mm (PXI.2.)

1 mm1.5 mm2.5 mm

1.5 mm2.5 mm 1,5 mm

2 mm4 mm

2 mm4 mm 2 mm 2,5 mm

1 mm2 mm

2,5 mm 3 mm

· 5 to 10 mm (PXI.3.)

5 mm5 mm8 mm 5 mm

10 mm6 mm

· 12 to 22 mm (PXI.4.)

15 mm15 mm20 mm

· 25 to 40 mm (PXI.5.) 30 mm

40 mm

· 50 to 75 mm (PXI.6.)

Output

· NO contact / NC contact / − / − / − / − / / / / / / / / / / / / / / − / − /

· pnp / npn / − / − / / / / / / / − / − / / / / / / − / − / − / − /

· Analog

Number of wires 3 3 3 3 2, 3, 4 3 3 2, 3, 4 3, 4 4 2, 3, 4 2, 3, 4 3 2, 3, 4 2, 3, 4 4 4 3 3 3

Operating voltage

· 10/15 ... 30/35 V DC

· 10 ... 65 V DC

· 20 ... 265/320 V AC/DC

Connection

· M8 connector

· M12 connector

· Cable

· Terminal compartment

Degree of protection

· IP 65 / IP 67 − / − / − / − / − / − / − / − / − / − / − / − / − / − / / / − / − − / · IP 68 / IP 69K / − / − / −

Product selection code

3RG4603 3RG4200 3RG42103RG4610

3RG46363RG4236

3RG40113RG40213RG46113RG4211

3RG40503RG40603RG46013RG4201

3RG46373RG4237

3RG40123RG4022

3RG40703RG4080

3RG4071 3RG40723RG4082

3RG40133RG4023

3RG4075 3RG40143RG4024

3RG40313RG40343RG40383RG4041

3RG4042 3RG4043 3RG4600 3RG4610 3RG40113RG41113RG46113RG4621

17 18

Overview of SIMATIC PXIinductive proximity switches

SIMATIC PXI200© Siemens AG 2007

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M12 Box with M14 6.5 mm 8 mm x 8 mm M18 18 mm M30 40 mm x 40 mm 60 mm x 80 mm 80 mm x 100 mm M8 M12 M18 M3040 mm x 40 mm

80 mm x 80 mm

M12 M18 M3040 mm x 40 mm

M14 M12

2 mm4 mm 2.5 mm

2.5 mm3 mm 3 mm

1.5 mm4 mm 3 mm

2 mm4 mm 3 mm

6 mm10 mm 5 mm

5 mm8 mm

5 mm8 mm 10 mm 8 mm 5 mm 10 mm

5 mm8 mm 10 mm

0 ... 6 mm

12 mm20 mm

15 mm22 mm

15 mm20 mm 12 mm 20 mm 15 mm 15 mm 15 mm

40 mm

25 mm30 mm35 mm40 mm 30 mm

30 mm40 mm

25 mm35 mm40 mm

35 mm

50 mm 65 mm 75 mm

/ / / − / / / / / / / / − / − / − / − / − / − / / / / /

/ / − / − / / / / / / − / − / / / / / / / − / − / − / − /

2, 3 2, 3 3 3 2, 3 3 2, 3 2, 3, 4 2, 3 2, 3 3 3 3 3 3 3 4 4 4 4 3 4

− / − / − / − / − / − / / / − / − − / − / − / − / − / − / − / − / − / / / − / / / / / − / − / − / − / − / −

3RG40123RG40223RG41123RG46123RG4622

3RG40723RG4082

3RG43023RG4602

3RG43373RG4637

3RG40133RG43233RG43133RG46133RG46233RG40233RG4113

3RG40533RG4063

3RG40143RG43243RG43143RG46143RG46243RG40243RG4114

3RG40303RG40313RG40383RG40413RG41343RG41383RG41313RG41443RG41483RG4141

3RG40423RG4142

3RG40333RG40433RG4143

3RG46113RG4621

3RG46123RG4622

3RG46133RG4623

3RG46143RG4624

3RG46343RG46383RG46443RG4648

3RG4643 3RG40123RG4022

3RG40133RG4023

3RG40143RG4024

3RG40383RG4138

3RG4652 3RG4612

SIMATIC PXI300 SIMATIC PXI400 SIMATIC PXI600 SIMATIC PXI900

© Siemens AG 2007

SIMATIC PXI inductive proximity switchesFunctionality and highlights

Function

A high-frequency alternating field is generated in the proxim-

ity switch and emerges at the "sensing face". The physical size

of this alternating field determines the "range" of the device.

When a material that is a good conductor of electricity and/or

magnetism comes into close proximity with the sensing

surface, the field is damped. Both states (field damped or

undamped) are evaluated in the proximity switch and result

in a change in the output state of the switch.

Built-in protection:

· Spurious switch-on pulse

· Short circuit and overload (DC)

· Swapped connectors

· Wire-break (connection L- or L+),

· Overvoltage peaks

· Radio interference

· Spurious signal suppression

The inductive proximity switches are classified in accordance with their applications or their technical characteristics:

· for standard duty

· for PLCs (2-wire)

· for extra electrical duty

· for extreme environmental conditions (IP69 K)

· with greater operating distance

· without a reduction factor

· pressure-resistant up to 500 bar (7250 psi)

· with analog output

· for use in Ex zone 2/22

Product families

The inductive proximity switches are classified in accordance with the various possible applications or their technical char-acteristics:

Highlights■ Extremely compact and rugged

■ High degree of protection (IP67/IP68/IP69K)

■ Correction factor 1

■ High sensing ranges

■ Fast switching frequencies

■ Flexible mounting

■ Especially suitable for small spaces

■ UL/CSA approvals

■ Versions for use in Ex zone 2/22

SIMATIC Sensors

Application areas and special features

PXI200 Sensors for standard applications and for use with LCs

Operating distance acc. to standard

PXI300 Sensors for extra duty

Sensors with greater operating distance

Sensors for extreme environmental conditions (IP68 / IP69K)

SIMATIC Sensors

Application areas and special features

PXI400 Sensors without a reduction factor; for welding ap-plications

PXI600 Sensors for EX zone 2/22

Approved for gas: EX II3G EEx nA II T6 X

Approved for dust : EX II 3D IP65 T 80 °C X

PXI900 Pressure-proof sensors up to 500 bar

Sensors with analog output

21

© Siemens AG 2007

SIMATIC PXC capacitive proximity switches Application examples

SIMATIC PXC capacitive proximity switches detect any material in solid, powder or liquid state, e.g. glass, ceramics, plastics, wood, oil, water, cardboard and paper. Objects can also be de-tected through certain non-metallic materials. This multi-tal-ented sensor can be applied virtually everywhere: in metal-working and bottling plants, in automation control and for counting all kinds of consumer goods. The capacitive proxim-ity switches operate without contact and wear and thus have a very long service life.

Typical applications for capacitive proximity switches are:

· Level control in plastic or glass containers

· Level signaling in transparent packaging

· Winding wire breakage signaling

· Tape breakage signaling

· Item counting of any kind

Detection of milk in cartons

Level control for bulk material in vessel

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© Siemens AG 2007

Overview ofSIMATIC PXCcapacitive

proximity

switches

23 24

Find the right product faster with the product selection code!In the A&D Mall: enter the product selection code to display a list of relevant products.In Catalog FS 10: use the product selection code in the order number index in Chapter 6 to find the chapter and page of suitable products.

M18 M30 Ø 40 mm 20 mm x 32 mm 40 mm x 40 mm

Operating distance

· 5 mm

· 10 mm

· 20 mm

Operating voltage

· 10 ... 30 VDC

· 10 ... 65 VDC

· 20 ... 250 VAC

Number of wires

· 2-wire

· 3-wire

· 4-wire

Output

· pnp

· NO contact

· NC contact

· NO and NC contact

· NO or NC contact

Mounting

· Flush

Connection

· Connector, Ø 8 mm

· Cable

· Terminal compartment

Degree of protection

· IP 67

Product selection code 3RG1613 3RG1614 3RG1655 3RG1673 3RG1630

SIMATIC PXC200© Siemens AG 2007

SIMATIC PXC capacitive proximity switchesFunctionality and highlights

Function

The sensing face of a capacitive sensor is formed by two con-centrically arranged metal electrodes that are equivalent to the electrodes of an unwound capacitor. The electrode sur-faces A and B are connected into the feedback branch of a high-frequency oscillator that is tuned such that it does not os-cillate when the surface is free.

When an object approaches the active face of the sensor, it enters the electric field in front of the electrode surfaces and causes a change in the coupling capacitance. The oscillator starts to oscil-late; the amplitude is recorded by an evaluation circuit and con-verted into a switching command.

Switching frequency

The build-up characteristics specific to other pulse/interval conditions may result in higher switching frequencies than those specified.

Operating distance

The stated values are applicable to a target of metal which is grounded and whose area corresponds to the sensing face of the proximity switch. The real operating distance sr for non-conductive targets is dependent on the relative dielectric con-stant er and the characteristic value (see characteristic curve).

Highlights■ Detection of all materials (e.g. plastics,wood, paper)

■ Measurement of liquid through plastic tubes or glass pipes

■ Measurement of aggressive chemicals

■ Adjustment of the operating distance on the object

25

Built-in protection:

· Spurious signal suppression

· Short-circuit and overload protection

· Polarity reversal protection for connections

· Inductive interference protection

Dielectric constants of various materials:

· Glass 5

· Paper 2.3

· Vacuum, air 1

· Water 80

© Siemens AG 2007

SIRIUS detection devices are paying attention!

Siemens also offers a wide range of mechanical sensors in addition to the non-contact proximity switches of the SIMATIC Sensors range. The new SIRIUS spectrum of detection devices ranges from position switches in different versions, through hinge switches to magnetically operated switches.

Standard position switches:reliable and conforming to standards

With a wide range of new features, this new generation of po-sition switches is successfully used in virtually all applications:

· Detection of hazardous movements of machine parts

· Monitoring of protection equipment with rotary joints, such as swiveling doors, access flaps, lids, etc.

· Monitoring of lateral-motion protection equipment, such as sliding doors, guards, etc.

The dimensions, fixing points and characteristics of our position switches largely comply with EN 50041 or EN 50047. Whether in plastic or metal enclosures: we have the right switch for your specific requirements. Reduced installation time and increased flexibility can be archieved through modular construction of in-dividual components and simple connection for plastic housing.

Short-stroke switches:accurate and compatible

Exact switching is required when monitoring doors and access flaps. No problem for our position switches with short-stroke switching element.

Position switch with separate actuator:proven and safe

With their largely standardized housings and operating mech-anism types, our standard position switches have been tried and tested in the monitoring of protection doors.

An alternative is to use a position switch with a separate actu-ator. It has multiple mechanical coding to prevent easy manip-ulation and thus overriding of safety equipment. The switch-ing unit is fixed to the door frame and the actuator to the protection door. In the safe state, i.e. with the protection door closed, the operating mechanism is seated snugly in the oper-ating head of the switch and actuates the contacts, which open with positive action when the door is opened.

26

© Siemens AG 2007

SIRIUS detection devicesThe right detection device for every application

Position switch with tumbler:clever and reliable

Position switches with a separate actuator and an additional electromagnetic tumbler are used if an interlock is required on a protection door, e.g. to secure the operating area of a robot. They keep the protection door interlocked until the operating area can be entered without danger. In other words: until the machine has come to a complete standstill or a non-critical speed has been reached. An electrical signal, e.g. from a safe zero-speed monitor, then actuates the interlock solenoid and releases the protection door. Position switches have a greater degree of security through locking pressure of up to 2600 N in the metal version and up to 1300 N in the plastic version even in harsh working environments.

Magnetically operated switches:Compact and secure against manipulation

Magnetically operated switches are contactless and are espe-cially suitable for monitoring protection doors. The reed con-tacts in the switching element are actuated by a coded switch-ing magnet and are thus particularly tamper-proof. The members of our 3SE6 family of magnetically operated switches, in conjunction with ASIsafe 3RK modules and 3TK28 electronic safety modules, are approved up to Cat. 4 in confor-mity with EN 954-1.

Hinge switches:Easy to mount

Our range of hinge switches completes the spectrum of posi-tion switches for monitoring swiveling doors and flaps. These mechanical switches provide maximum protection against tampering and manipulation thanks to the snug connection between the switch and the protection door hinge.

27

© Siemens AG 2007

Siemens AG

Automation and DrivesSensors and CommunicationP.O. Box 48 4890327 NÜRNBERGGERMANY

www.siemens.com/automation

The information provided in this brochure contains descriptions or

characteristics of performance which in case of actual use do not always apply

as described or which may change as a result of further development of the

products. An obligation to provide the respective characteristics shall only exist

if expressly agreed in the terms of contract.

Availability and technical specifications are subject to change without prior

notice.

All product designations may be trademarks or

product names of Siemens AG or supplier companies whose use by third par-

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www.siemens.com/simatic-sensors/px

Comprehensive information and expertiseat your service!

■ Product information on SIMATIC Sensors: www.siemens.com/simatic-sensors

■ References for SIMATIC Sensors:www.siemens.com/simatic-sensors/references

■ Ordering on the Internet: www.siemens.com/automation/mall

■ Your personal contact partner – at an office near you:www.siemens.com/automation/partner

■ Service and support: www.siemens.com/automation/service&support

■ Training for SIMATIC Sensors: www.sitrain.com

■ Newsletters on SIMATIC Sensors and Totally Integrated Automation - Subscribe here: www.siemens.com/automation/newsletter

Partners for your automation solutions

■ Siemens Solution Partner Automation: www.siemens.com/automation/solutionpartner

■ System partner for SIMATIC Sensors:www.siemens.com/simatic-sensors/partner

SIMATIC Sensors –

Sensors for factory automation

© Siemens AG 2007