SIMATIC PX proximity switches for reliable sensing, counting, measurement or monitoring

Transcription

1 SIMATIC PX proximity switches for reliable sensing, counting, measurement or monitoring Brochure November 2007

2 SIMATIC PX proximity switches for reliable sensing, counting, measurement or monitoring Whether the objects are in solid, liquid or powder form; whether you want to detect, count, measure, monitor or position: 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 switches Photoelectric sensors for distances up to 50 m SIMATIC PXI inductive proximity switches for metal objects even under tough ambient conditions SIMATIC PXC capacitive proximity switches for conductive and non-conductive materials with various properties Highlights Contactless detection of objects Extensive and complete product range including photoelectric, 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 2

3 SIMATIC PX proximity switches Portfolio overview Totally integrated in TIA IQ-Link is a concept for the intelligent integration of sensors in automation systems. Just like all products and systems incorporated in Totally Integrated Automation, IQ-Link devices also feature the same properties with respect to communications capability, data management and configuration/programming. 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 proximity 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 nowear 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. 3

4 Intelligent proximity switches Easy to insert, simply more productive Sensors and PLCs are growing together Sensors are becoming more intelligent and versatile. Thus setting 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 advantages - for plant construction as well as for its operation. Thanks to the integrated availability of parameters, for example, 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 parameterizing even after replacement. Furthermore, IQ-Link permits channel-specific system diagnostics. 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. Highlights Engineering 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-interference function Simple and cost-effective wiring, fast commissioning New communication standard: IO-Link Well-known manufacturers of sensor and automation technologies partnered up under the roof of the PROFIBUS user organization (PNO) to develop an integrated communication standard for sensors and actuators. After completion of the specification at the beginning of 2008 together with the integration 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 availability. The proven IQ-Sense technology from Siemens was incorporated 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. 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 4

5 IO-Link in the automation environment 5

6 SIMATIC PXS sonar proximity switches from 2.5 to 10 m - they hear everything! Sonar proximity switches SIMATIC PXS ensure non-contact sensing with millimeter precision in the range from 2.5 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 calculated and converted to an output signal. Sonar proximity switches feature large sensing distances up to 10 meters, high accuracy in the millimeter range, good reproducibility 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. Measurement of stack height Distance monitoring Measurement of diameter and speed indicator Size measurement Contour measurement Loop monitoring Quality control 6

7 SIMATIC PXS100 Siemens AG 2007 SIMATIC PXS200 Overview of SIMATIC PXS sonar proximity switches Type K0 compact range Sonar thru-beam sensor 3SG16 compact range K21 compact range Version A Version B M30 K1 compact range K08 compact range M18 S compact range Sensing range Operating mode Diffuse sensor Reflex sensor Thru-beam sensor Design Fixed transformer Angular sensor area Swivel-mounted sensor Separate sensor head Output , 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 Temperature compensation 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 3RG6342 3RG RG SG1667 6GR6241 6GR6241 6GR6241 6GR6242 6GR6242 3RG6012 3RG6022 3RG6013 3RG6023 3RG6015 3RG6025 3RG6014 3RG6024 3RG6451 3RG6451 3RG6451 3RG6432 3RG6422 3RG6432 3RG6422 3RG6431 3RG6421 3RG6431 3RG6421 3RG6433 3RG6423 3RG6433 3RG6423 3RG6433 3RG6423 3RG6431 3RG6421 *) = Depending on implementation 7 8

8 SIMATIC PXS300 Siemens AG 2007 SIMATIC PXS400 SIMATIC PXS800 SIMATIC PXS900 M30 K2 compact range M18 compact range K65 compact range M30 K3 compact range M18 ATEX compact range M30 K3 ATEX compact range Double-layer sheet monitoring *) *) *) *) 3RG6012 3RG6022 3RG6013 3RG6023 3RG6015 3RG6025 3RG6014 3RG6024 3RG6232 3SF6232 3RG6233 3SF6233 3RG6252 3RG6253 3RG6254 3RG6112 3RG6122 3RG6113 3RG6123 3RG6115 3RG6125 3RG6114 3RG6124 3RG6232 3RG6233 3RG6112 3RG6113 3RG6115 3RG6114 3RX

9 SIMATIC PXS sonar proximity switches Functionality and highlights Function The sonar proximity switches only operate through the medium 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 accordance 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 propagation principle, i.e. the time difference between the emitted 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 compensation 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 interconnecting the synchronization outputs of the devices. Up to 10 devices 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. 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 Product lines The sonar proximity switches are organized in different product families in accordance with their technical version and design: SIMATIC Sensors PXS100 PXS200 PXS300 PXS400 PXS800 Form Compact range 0, compact form 3SG16, sonar barrier Compact range K21, compact range M30 K1, compact range M18S, compact form K08 Compact range M30 K2, compact range M18, compact form K65 M30 K3 compact range M18 ATEX compact range, M30 K3 ATEX compact range PXS900 Double-layer sheet monitoring 11

10 SIMATIC PXO opto proximity switches Fast and accurate sensing with light and laser The various versions of the SIMATIC PXO opto proximity switches are predominantly used in the following applications: 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 analog 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. Measurement of diameter using diffuse sensor Height measurement (diffuse sensor with background suppression) Counting with retroreflective sensor Counting with thru-beam sensor 12

11 SIMATIC PXO opto proximity switches Functionality 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 receiver located in the same device. If the intensity of the received 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 potentiometer. The energetic sensor can therefore also be used to detect different colors. Diffuse sensor with background suppression Diffuse sensors with background suppression can detect objects 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 selected and aligned in such a way that only the light reflected from the reflector reaches the receiver and not the light reflected from other objects within the beam range. Highlights Extremely precise and quick-acting with pin-point locating 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 sensors or fork sensors Sensing or distance measurement on large distances with laser distance sensors 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 receiver. The receiver evaluates the incoming light to clearly separate it from the ambient light and other light sources. SIMATIC Sensors Version Form Sensors for Ex Zone 2/22 The K80 ATEX optical 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 optical proximity switches with ATEX approval is identical to that of the standard proximity switches. PXO100 PXO200 PXO300 PXO400 PXO500 Cylindrical version, mini Cylindrical versions Cubic version, mini Cubic version, small Cubic version D4, M5, M12 M18S, M18, L18 K21, K21R, K20, L20, C20 K31, K30 C40, L50, L50HF, L50HF, adv., C50 PXO600 Cubic version, large K80, L80HF, L90L PXO800 Special device amplifiers GL, LV70 13

12 Overview of SIMATIC PXO opto proximity switches Siemens AG 2007 SIMATIC PXO100 SIMATIC PXO200 SIMATIC PXO300 Type D4, M5 M12 M18S M18 L18 K21 K20 L20 PXO 370 C20 Operating mode Diffuse sensor Diffuse sensor with background suppression Retroreflective sensor Thru-beam sensor Contrast sensor Color sensor Distance measurement Sensing range 1.8 to 3 5 to to to to 50 *) 60 to 70 *) 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 /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 3RG7030 3RG7040 3RG7120 3RG7121 3RG7122 3RG7640 3RG7650 3RG7641 3RG7651 3RG7642 3RG7652 3RG7134 3RG7135 3RG7175 3RG7400 3RG7420 3RG7401 3RG7421 3RG7404 3RG7401 3RG7407 3RG7406 3RG *) = Depending on implementation

13 SIMATIC PXO400 Siemens AG 2007 SIMATIC PXO500 SIMATIC PXO600 SIMATIC PXO800 K31 K30 C40 L50 C50 K80 L80 PXO650 L90L PXO830 GL PXO840 LV70 3RG7010 3RG7014 3RG7011 3RG7012 3RG7010 3RG7011 3RG7012 3RG7240 3RG7244 3RG7241 3RG7241 3RG7056 3RG7057 3RG7056 3RG7050 3RG7200 3RG7210 3RG7204 3RG7214 3RG7201 3RG7211 3RG7202 3RG7212 3RG7256 6GR1654 6GR180 6GR181 15

14 SIMATIC PXI inductive proximity switches Rugged, accurate and reliable SIMATIC PXI inductive proximity switches are used for noncontact sensing of metal objects, e.g. on printing presses, conveyor systems, robots, elevators, presses, automatic welding machines, etc. Inductive proximity switches feature a long service 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. Recognition of the valve position (completely open or closed) Recognition of adjusting screws on the wheel for velocity or direction control Recognition of cans and lids 16

15 Overview of SIMATIC PXI inductive proximity switches Siemens AG 2007 SIMATIC PXI200 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 M30 40 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 mm 1.5 mm 2.5 mm 1.5 mm 2.5 mm 1,5 mm 2 mm 4 mm 2 mm 4 mm 2 mm 2,5 mm 5 to 10 mm (PXI.3.) 5 mm 10 mm 5 mm 8 mm 5 mm 12 to 22 mm (PXI.4.) 15 mm 15 mm 20 mm 25 to 40 mm (PXI.5.) 30 mm 1 mm 2 mm 2,5 mm 3 mm 6 mm 50 to 75 mm (PXI.6.) Output NO contact / NC contact / / / / / / / / / / / / / / / / / / / / pnp / npn / / / / / / / / / / / / / / / / / / / / Analog Number of wires , 3, , 3, 4 3, 4 4 2, 3, 4 2, 3, 4 3 2, 3, 4 2, 3, Operating voltage 10/ /35 V DC V DC /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 3RG4210 3RG4610 3RG4636 3RG4236 3RG4011 3RG4021 3RG4611 3RG4211 3RG4050 3RG4060 3RG4601 3RG4201 3RG4637 3RG4237 3RG4012 3RG4022 3RG4070 3RG4080 3RG4071 3RG4072 3RG4082 3RG4013 3RG4023 3RG4075 3RG4014 3RG4024 3RG4031 3RG4034 3RG4038 3RG mm 3RG4042 3RG4043 3RG4600 3RG4610 3RG4011 3RG4111 3RG4611 3RG4621 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

16 SIMATIC PXI300 SIMATIC PXI400 SIMATIC PXI600 SIMATIC PXI900 M12 Box with M 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 M30 40 mm x 40 mm 80 mm x 80 mm M12 M18 M30 40 mm x 40 mm M14 M12 2 mm 4 mm 2.5 mm 6 mm 10 mm 5 mm 2.5 mm 3 mm 3 mm 1.5 mm 4 mm 3 mm 5 mm 8 mm 10 mm 8 mm 5 mm 10 mm 2 mm 4 mm 3 mm 5 mm 8 mm 10 mm 5 mm 8 mm 12 mm 20 mm mm 15 mm 22 mm 15 mm 20 mm 12 mm 20 mm 15 mm 15 mm 15 mm 40 mm 25 mm 30 mm 35 mm 40 mm 30 mm 30 mm 40 mm 25 mm 35 mm 40 mm 35 mm 50 mm 65 mm 75 mm / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / 2, 3 2, , 3 3 2, 3 2, 3, 4 2, 3 2, / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / 3RG4012 3RG4022 3RG4112 3RG4612 3RG4622 3RG4072 3RG4082 3RG4302 3RG4602 3RG4337 3RG4637 3RG4013 3RG4323 3RG4313 3RG4613 3RG4623 3RG4023 3RG4113 3RG4053 3RG4063 3RG4014 3RG4324 3RG4314 3RG4614 3RG4624 3RG4024 3RG4114 3RG4030 3RG4031 3RG4038 3RG4041 3RG4134 3RG4138 3RG4131 3RG4144 3RG4148 3RG4141 3RG4042 3RG4142 3RG4033 3RG4043 3RG4143 3RG4611 3RG4621 3RG4612 3RG4622 3RG4613 3RG4623 3RG4614 3RG4624 3RG4634 3RG4638 3RG4644 3RG4648 3RG4643 3RG4012 3RG4022 3RG4013 3RG4023 3RG4014 3RG4024 3RG4038 3RG4138 3RG4652 3RG

17 SIMATIC PXI inductive proximity switches Functionality and highlights Function A high-frequency alternating field is generated in the proximity 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 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 Product families The inductive proximity switches are classified in accordance with the various possible applications or their technical characteristics: SIMATIC Sensors Application areas and special features SIMATIC Sensors Application areas and special features PXI200 Sensors for standard applications and for use with LCs PXI400 Sensors without a reduction factor; for welding applications PXI300 Operating distance acc. to standard Sensors for extra duty Sensors with greater operating distance Sensors for extreme environmental conditions (IP68 / IP69K) 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

18 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 detected through certain non-metallic materials. This multi-talented sensor can be applied virtually everywhere: in metalworking and bottling plants, in automation control and for counting all kinds of consumer goods. The capacitive proximity 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 22

19 Overview of SIMATIC PXC capacitive proximity switches Siemens AG 2007 SIMATIC PXC200 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 VDC VDC 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 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

20 SIMATIC PXC capacitive proximity switches Functionality and highlights Function The sensing face of a capacitive sensor is formed by two concentrically arranged metal electrodes that are equivalent to the electrodes of an unwound capacitor. The electrode surfaces A and B are connected into the feedback branch of a high-frequency oscillator that is tuned such that it does not oscillate 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 oscillate; the amplitude is recorded by an evaluation circuit and converted into a switching command. 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 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 nonconductive targets is dependent on the relative dielectric constant er and the characteristic value (see characteristic curve). 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 25

21 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 position 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 or EN 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 individual 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 mechanism 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 actuator. It has multiple mechanical coding to prevent easy manipulation and thus overriding of safety equipment. The switching 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 operating head of the switch and actuates the contacts, which open with positive action when the door is opened. 26

22 SIRIUS detection devices The 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 especially suitable for monitoring protection doors. The reed contacts in the switching element are actuated by a coded switching 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 conformity with EN Hinge switches: Easy to mount Our range of hinge switches completes the spectrum of position 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

23 SIMATIC Sensors Sensors for factory automation Comprehensive information and expertise at your service! Product information on SIMATIC Sensors: References for SIMATIC Sensors: Ordering on the Internet: Your personal contact partner at an office near you: Service and support: Training for SIMATIC Sensors: Newsletters on SIMATIC Sensors and Totally Integrated Automation - Subscribe here: Partners for your automation solutions Siemens Solution Partner Automation: System partner for SIMATIC Sensors: Subject to change without prior notice Order No. 6ZB5330-0AD02-0BA3 Dispo BS WE 28 EN / Printed in Germany Siemens AG 2007 Siemens AG Automation and Drives Sensors and Communication P.O. Box NÜRNBERG GERMANY 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-